SERVICE MANUAL
COMPACT DISC DECK RECEIVER
SPECIFICATIONS
HCD-GT22/GT44/GT55
Photo: HCD-GT55
Ver. 1.0 2007.06
– Continued on next page –
E Model
HCD-GT22/GT44/GT55
Australian Model
HCD-GT22/GT44
• HCD-GT22 is the amplifier, USB, CD player, tape deck and tuner section in MHC-GT22.
• HCD-GT44 is the amplifier, USB, CD player, tape deck and tuner section in MHC-GT44.
• HCD-GT55 is the amplifier, USB, CD player, tape deck and tuner section in MHC-GT55.
Model Name Using Similar Mechanism NEW
CD CD Mechanism Type CDM74KF-K6BD91UR-WOD
Section Base Unit Name BU-K6BD91UR-WOD74
Optical Pick-up Block Name KSM-213DCP TAPE Model Name Using Similar Mechanism NEW Section Tape Transport Mechanism Type CWN42FF609
Amplier section
HCD-GT55
The following are measured at AC 120, 127, 220, 240V 50/60Hz
Front speaker
Power output (rated): 110 W + 110 W (at 6 Ω, 1 kHz, 1% THD)
RMS output power (reference): 200 W + 200 W (per channel at 6 Ω, 1 kHz, 10% THD)
Subwoofer
RMS output power (reference): 190 W (at 6 Ω, 80 Hz, 10% THD)
HCD-GT44
The following are measured at AC 120, 127, 220, 240V 50/60Hz
Front speaker
Power output (rated): 90 W + 90 W (at 6 Ω, 1 kHz, 1% THD)
RMS output power (reference): 150 W + 150 W (per channel at 6 Ω, 1 kHz, 10% THD)
Subwoofer
RMS output power (reference): 150 W (at 6 Ω, 80 Hz, 10% THD)
HCD-GT22
The following are measured at AC 120, 127, 220, 240V 50/60Hz
Power output (rated): 110 W + 110 W (at 6 Ω, 1 kHz, 1% THD)
RMS output power (reference): 200 W + 200 W (per channel at 6 Ω, 1 kHz, 10% THD)
Inputs
AUDIO (phono jack): voltage 250 mV, impedance 47 kilohms
MIC (phone jack): sensitivity 1 mV, impedance 10 kilohms
(USB) port: Type A
Outputs
PHONES (stereo mini jack): accepts headphones of 8 Ω or more
SPEAKER: accepts impedance of 6 to 16 Ω SUB WOOFER OUT (HCD-GT55/GT44 only): accepts impedance of 6 to 16 Ω
USB section
Supported bit rate
MP3 (MPEG 1 Audio Layer-3): 32 – 320 kbps, VBR
Sampling frequencies
MP3 (MPEG 1 Audio Layer-3): 32/44.1/48 kHz
Transfer speed Full-Speed Supported USB device
Mass Storage Class Maximum current
500 mA
CD player section
System: Compact disc and digital audio system
Laser: Semiconductor laser (λ=770 – 810 nm)
Emission duration: continuous Frequency response: 20 Hz – 20 kHz Signal-to-noise ratio: More than 90 dB Dynamic range: More than 88 dB
Notes on chip component replacement
• Never reuse a disconnected chip component.
• Notice that the minus side of a tantalum capacitor may be
damaged by heat.
Flexible Circuit Board Repairing
• Keep the temperature of the soldering iron around 270 ˚C
during repairing.
• Do not touch the soldering iron on the same conductor of the
circuit board (within 3 times).
• Be careful not to apply force on the conductor when soldering
or unsoldering.
CAUTION
Use of controls or adjustments or performance of procedures other than those specified herein may result in hazardous radiation exposure.
SAFETY-RELATED COMPONENT WARNING!! COMPONENTS IDENTIFIED BY MARK 0 OR DOTTED LINE WITH MARK 0 ON THE SCHEMATIC DIAGRAMS AND IN THE PARTS LIST ARE CRITICAL TO SAFE OPERATION.
is classified as a CLASS 1 LASER product. This appliance
Tape deck section
Recording system: 4-track 2-channel, stereo Frequency response: 50 – 13,000 Hz (±3 dB), using Sony TYPE I cassettes
Tuner section
FM stereo, FM/AM superheterodyne tuner
FM tuner section:
Tuning range:
87.5 – 108.0 MHz (50 kHz step) Antenna: FM lead antenna
Antenna terminals: 75 ohms unbalanced Intermediate frequency: 10.7 MHz
AM tuner section:
Tuning range
Latin American and Oceanian models: 530 – 1,710 kHz (with 10 kHz tuning interval) 531 – 1,710 kHz (with 9 kHz tuning interval) Other models: 530 – 1,610 kHz (with 10 kHz tuning interval) 531 – 1,602 kHz (with 9 kHz tuning interval)
Antenna: AM loop antenna, external antenna terminal Intermediate frequency: 450 kHz
General
Power requirements Oceanian model: AC 230 – 240 V, 50/60 Hz Mexican model: AC 127 V, 60 Hz Argentine model: AC 220 V, 50/60 Hz Other models: AC 120, 220 or 230 – 240 V, 50/60 Hz, Adjustable with voltage selectorPower consumption HCD-GT55: 225 W HCD-GT44: 250 W HCD-GT22: 150 W
Dimensions (w/h/d) (excl. speakers) HCD-GT55:
Approx. 280 × 365 × 425 mm HCD-GT44/GT22:
Approx. 280 × 325 × 425 mm Mass (excl. speakers)
HCD-GT55: 10.5 kg HCD-GT44/GT22: 10.0 kg Design and specifications are subject to change without notice.
TABLE OF CONTENTS
1.
SERVICING NOTES
... 42.
GENERAL
... 63.
DISASSEMBLY
3-1. Disassembly Flow ... 73-2. Case (Side-L), Case (Side-R) ... 8
3-3. Case (Top) ... 8
3-4. Lid (CD) ... 9
3-5 CD Mechanism Deck (CDM74KF-K6BD91UR-WOD), USB board ... 9
3-6. Front Panel Block ... 10
3-7. Mecha Deck (CWN42FF609) ... 10
3-8. Back Panel Block ... 11
3-9. MAIN Board ... 11
3-10. CD Board ... 12
3-11. DRIVER Board, SW Board ... 12
3-12. Optical Pick-up Block (KSM-213D) ... 13
3-13. SENSOR Board ... 13 3-14. MOTOR (TB) Board ... 14 3-15. MOTOR (LD) Board ... 14
4.
TEST MODE
... 155.
MECHANICAL ADJUSTMENTS
... 196.
ELECTRICAL ADJUSTMENTS
... 207.
DIAGRAMS
7-1. Block Diagram – CD SERVO, USB Section – ... 237-2. Block Diagram – MAIN Section – ... 24
7-3. Block Diagram – AMP Section – ... 25
7-4. Block Diagram – PANEL, POWER AMP Section – ... 26
7-5. Printed Wiring Board – CD Board – ... 28
7-6. Schematic Diagram – CD Board – ... 29
7-7. Printed Wiring Boards – CHANGER Section – ... 30
7-8. Schematic Diagram – CHANGER Section – ... 31
7-9. Printed Wiring Board – USB Board – ... 32
7-10. Schematic Diagram – USB Board – ... 33
7-11. Printed Wiring Board – TC Board – ... 34
7-12. Schematic Diagram – TC Board – ... 35
7-13. Printed Wiring Boards – MAIN Section – ... 37
7-14. Schematic Diagram – MAIN Section (1/4) – ... 38
7-15. Schematic Diagram – MAIN Section (2/4) – ... 39
7-16. Schematic Diagram – MAIN Section (3/4) – ... 40
7-17. Schematic Diagram – MAIN Section (4/4) – ... 41
7-18. Printed Wiring Board – MIC Board – ... 42
7-19. Schematic Diagram – MIC Board – ... 43
7-20. Printed Wiring Board – AMP Board (GT22/GT55) – ... 44
7-21. Schematic Diagram – AMP Board (GT22/GT55) – ... 45
7-22. Printed Wiring Board – AMP Board (GT44) – ... 46
7-23. Schematic Diagram – AMP Board (GT44) – ... 47
7-24. Printed Wiring Boards – SUB WOOFER Section (GT44/GT55) – ... 48
7-25. Schematic Diagram – SUB WOOFER Section (GT44/GT55) – ... 49
7-26. Printed Wiring Boards – PANEL Section – ... 50
7-27. Schematic Diagram – PANEL Section – ... 51
7-28. Printed Wiring Boards – KEY Section – ... 52
7-29. Schematic Diagram – KEY Section – ... 53
7-30. Printed Wiring Board – TRANS Board (GT22/GT55) – ... 54
7-31. Schematic Diagram – TRANS Board (GT22/GT55) – ... 55
7-32. Printed Wiring Board – TRANS Board (GT44) – ... 56
7-34. Schematic Diagram – TRANS Board (GT44) – ... 57
8.
EXPLODED VIEWS
8-1. Case Section ... 698-2. KEY TOP Board Section ... 70
8-3. TC Mecha Deck Section ... 71
8-4. PANEL Board Section ... 72
8-5. Front Panel Section ... 73
8-6. MAIN Board Section ... 74
8-7. POWER Board, SUB WOOFER Board Section ... 75
8-8. Chassis Section ... 76
8-9. CD Mechanism Deck Section-1 (CDM74KF-K6BD91UR-WOD) ... 77
8-10. CD Mechanism Deck Section-2 (CDM74KF-K6BD91UR-WOD) ... 78
MODEL IDENTIFICATION – Model Number Label –
Model Power voltage indication
GT22: E2, E3, E51 AC: 120V/220V/230-240V - 50/60Hz 150W GT22: E13, AUS AC: 230-240V - 50/60Hz 150W
GT22: MX ca-127V 60Hz 150W GT22: AR ca 220V - 50/60Hz 150W GT44: E13, AUS AC: 230-240V - 50/60Hz 250W
GT44: E2, E3, E51 AC: 120V/220V/230-240V - 50/60Hz 250W GT44: MX ca-127V 60Hz 250W
GT44: AR ca 220V - 50/60Hz 250W
GT55: E2, E51 AC: 120V/220V/230-240V - 50/60Hz 225W GT55: MX ca-127V 60Hz 225W
GT55: AR ca 220V - 50/60Hz 225W
• Abbreviation
AR : Argentina model AUS : Australian model E2 : 120V AC Area in E model E3 : 240V AC Area in E model E13 : 220V - 230V AC Area in E model E51 : Chilean and Peruvian models MX : Mexican model
NOTES ON HANDLING THE OPTICAL PICK-UP BLOCK OR BASE UNIT
The laser diode in the optical pick-up block may suffer electrostatic break-down because of the potential difference generated by the charged electrostatic load, etc. on clothing and the human body. During repair, pay attention to electrostatic break-down and also use the procedure in the printed matter which is included in the repair parts.
The flexible board is easily damaged and should be handled with care.
NOTES ON LASER DIODE EMISSION CHECK
The laser beam on this model is concentrated so as to be focused on the disc reflective surface by the objective lens in the optical pick-up block. Therefore, when checking the laser diode emission, observe from more than 30 cm away from the objective lens. UNLEADED SOLDER
Boards requiring use of unleaded solder are printed with the lead-free mark (LF) indicating the solder contains no lead.
(Caution: Some printed circuit boards may not come printed with the lead free mark due to their particular size)
: LEAD FREE MARK
Unleaded solder has the following characteristics.
• Unleaded solder melts at a temperature about 40 °C higher
than ordinary solder.
Ordinary soldering irons can be used but the iron tip has to be applied to the solder joint for a slightly longer time. Soldering irons using a temperature regulator should be set to
about 350 °C.
Caution: The printed pattern (copper foil) may peel away if the heated tip is applied for too long, so be careful!
• Strong viscosity
Unleaded solder is more viscou-s (sticky, less prone to flow) than ordinary solder so use caution not to let solder bridges occur such as on IC pins, etc.
• Usable with ordinary solder
It is best to use only unleaded solder but unleaded solder may also be added to ordinary solder.
RELEASING THE ANTITHEFT LOCK
The disc table lock function for the antitheft of an demonstration disc in the store is equipped.
Releasing Procedure :
1. Press the I/1 button to turn the power on.
2. Press the CD button to select “CD”.
3. While pressing the x button, press the Z button until
“UNLOCKED” displayed on the fluorescent indicator tube (around 5 seconds).
Note:When “LOCKED” is displayed, the antitheft lock is not released by turning power on/off with the I/1 button.
Power Voltage Indication
SERVICE POSITION
In checking the CD mechanism deck, prepare jig (extension cable J-2501-248-A (27 core/300 mm))/J-2501-077-A (13 core/300 mm)
Connect jig (extension cable J-2501-248-A) to the flexible flat cable (27 core) and CD board (CN202).
MAIN board
CD mechanism deck
Connect jig (extension cable J-2501-077-A) to the flexible flat cable (13 core) and DRIVER board (CN701).
HOW TO OPEN THE TRAY WHEN POWER SWITCH TURN OFF
1Turn the gear (loading A) to the direction of the arrow.
Unit HCD-GT55 HCD-GT44/GT22 * HCD-GT44 only Remote 1 4/1 (on/standby)
Press to turn on the system.
Unit: STANDBY indicator
Lights up when the system is off.
2
Remote sensor
3
DISPLAY
Press to change the information on the display.
Unit: ILLUMINATION
Press to change the illumination pattern around MASTER VOLUME qg.
4
CD
Press to select the CD function.
TUNER/BAND
Press to select the TUNER function. Press to select FM or AM reception mode.
Unit: TAPE A/B
Press to select the TAPE function. Press to select TAPE A or TAPE B.
Unit: AUDIO
Press to select the AUDIO function.
USB
Press to select the USB function.
Remote: FUNCTION
Press to select the function.
5 (HCD-GT55/GT44 only)
SUBWOOFER
Press to turn on and off the subwoofer.
SUBWOOFER indicator
Lights up when the subwoofer is on.
6
Z PUSH
Press to insert or eject a tape.
7
ERASE
Press to erase MP3 files and folders from the connected optional USB device (Digital music player or USB storage media).
8
Unit: PRESET EQ, GROOVE, SURROUND Remote: EQ
Press to select the sound effect.
9
PLAY MODE/TUNING MODE (HCD-GT55 only)
Press to select the play mode of a CD, MP3 disc or an optional USB device (Digital music player or USB storage media).
Press to select the tuning mode.
EQ BAND (HCD-GT44/GT22 only)
Press to select the frequency band.
q;
PHONES jack
Connect the headphones.
qa
AUDIO INPUT L/R jacks
Connect to an audio component (Portable audio player, etc.).
qs
(USB) port
Connect an optional USB device (Digital music player or USB storage media).
qd
REC/ERASE indicator
Lights up when recording to the connected optional USB device (Digital music player or USB storage media), or when erasing MP3 files or folders.
qf
MIC jack
Connect an optional microphone.
MIC LEVEL
Turn to adjust the microphone volume.
qg
Unit: MASTER VOLUME
Turn to adjust the volume.
Remote: VOLUME +/–
Press to adjust the volume.
qh
OPERATION DIAL
Turn to select a track, file or folder.
qj
Unit: NX (play/pause)
Remote: N (play)
X (pause)
Press to start or pause playback.
x (stop)
Press to stop playback.
./> (go back/go forward)
Press to select a track or file.
Unit: TUNING +/– Remote: +/– (tuning)
Press to tune in the desired station.
+/– (select folder)
Press to select a folder.
m/M (rewind/fast forward)
Press to find a point in a track or file.
qk
CD-USB SYNC/REC1
Press to record from a disc onto the connected optional USB device (Digital music player or USB storage media).
CD-TAPE SYNC
TAPE REC PAUSE/START
Press to record onto a tape.
ql
Z OPEN/CLOSE
Press to insert and eject a disc.
w;
Unit: DISC 1 – 3
Press to select a disc. Press to switch to the CD function from other function.
Unit: DISC SKIP/EX-CHANGE
Press to select a disc. Press to exchange a disc while playing.
Remote: DISC SKIP
Press to select a disc.
wa
RETURN
Press to return to the parent folder. Press to exit search mode.
ws
ENTER
Press to enter the settings.
wd (HCD-GT55 only)
ENTER
Press to enter the settings.
+/– (equalizer level)
Press to adjust the equalizer level.
wf (HCD-GT55 only)
BASS
Press to select low frequency. The indicator lights up when the button is pressed.
VOCAL
Press to select mid frequency. The indicator lights up when the button is pressed.
GUITAR
Press to select high frequency. The indicator lights up when the button is pressed.
FOCUS
Press to emphasize equalizer level of the selected band.
wg
CLOCK/TIMER SELECT CLOCK/TIMER SET
Press to set the clock and the timers.
wh
REPEAT/FM MODE
Press to listen to a disc, an USB device, a single track or file repeatedly. Press to select the FM reception mode (monaural or stereo).
wj
Battery compartment lid
wk
CLEAR
Press to delete a pre-programmed track or file.
wl
TUNER MEMORY
Press to preset the radio station.
e;
PLAY MODE/TUNING MODE
Press to select the play mode of a CD, MP3 disc or an optional USB device (Digital music player or USB storage media).
Press to select the tuning mode.
ea
SLEEP
Press to set the Sleep Timer.
• This set can be disassembled in the order shown below.
3-1. DISASSEMBLY FLOW
SECTION 3
DISASSEMBLY
SET
3-2. CASE (SIDE-L), CASE (SIDE-R) (Page 8) 3-3. CASE (TOP) (Page 8) 3-4. LID (CD) (Page 9) 3-9. MAIN BOARD (Page 11) 3-14. MOTOR (TB) BOARD (Page 14) 3-15. MOTOR (LD) BOARD (Page 14) 3-11. DRIVER BOARD, SW BOARD (Page 12) 3-6. FRONT PANEL BLOCK
(Page 10) 3-7. MECHANICAL DECK (CWM42FF609) (Page 10) 3-5. CD MECHANISM DECK (CDM74KF-K6BD91UR-WOD) (Page 9) 3-10. CD BOARD (Page 12)
3-12. OPTICAL PICK-UP BLOCK (KSM-213D)
(Page 13)
3-13. SENSOR BOARD (Page 13) 3-8. BACK PANEL BLOCK
Note: Follow the disassembly procedure in the numerical order given.
3-2. CASE (SIDE-L), CASE (SIDE-R)
4three screws (case 3 TP2) 1three screws (case 3 TP2) 5two screws (BVTP3 × 10) 2two screws (BVTP3 × 10) 3case (side-L) 6case (side-R)
3-3. CASE (TOP)
1two screws (BVTP3 × 10) 32Open the case (top). 2Open the case (top).
2Open the case (top).
5case (top) 4four claws
3-4. LID (CD)
3-5. CD MECHANISM DECK (CDM74KF-K6BD91UR-WOD), USB BOARD
1Turn the gear (loading A) to the direction of the arrow.
3four claws 2 4lid (CD) 7three screws (BVTP3 × 8) 6screw (BVTP3 × 8) 8CD mechanism deck (CDM74KF-K6BD91UR-WOD)
1flexible flat (13 core) cable (CN701)
2flexible flat (27 core) cable (CN302)
4connector (CN901)
5connector (CN903) 9two screws (M2.6)
3-6. FRONT PANEL BLOCK
3-7. MECHA DECK (CWN42FF609)
5four screws (BVTP3 × 8) 6front panel block
1flexible flat cable (27 core) (CN901)
4two connectors (CN301, CN302)
3flexible flat cable (13 core) (CN061)
2flexible flat cable (11 core) (CN201) 1six screws (BVTP2.6 × 8) 2 3mecha deck (CWN42FF609)
3-8. BACK PANEL BLOCK
3-9. MAIN BOARD
4two screws (BVTP3 × 10) 4two screws (BVTP3 × 10) (GT44/GT55) 4two screws (BVTP3 × 10) 5back panel block2connector (CN041)
1flexible flat cable (9 core) (tuner (FM/AM))
3connector (CN701)
(except Australian model)
7screw (BV3) 9 6screw (BVTP3 × 8) 8two screws (BVTT4 × 8) 3connector (CN907) 0connector (CN031) 4connector (CN271) qaMAIN board qsPOWER board 2connector (CN903)
3-10. CD BOARD
6CD board
5Remove soldering from the four points.
4flexible flat (16 core) cable (CN301) CD machanism deck (bottom side) 1screw (BVTP3 × 8) 2screw(BVTP2.6) 3cover (OP)
3-11. DRIVER BOARD, SW BOARD
3connector (CN703) 4connector (CN704) 5DRIVER board 7SW board
2wire (flat type) (5 core) (CN702) 1two screws (BTTP (M2.6)) 6screw (BTTP (M2.6)) CD machanism deck
3-12. OPTICAL PICK-UP BLOCK (KSM-213D)
3-13. SENSOR BOARD
4two coil springs (insulator)
7two coil springs (insulator)
5two insulators
8two insulators
6two floating screws (PTPWH M2.6)
2holder (213) assy
0Remove the four solders of motor.
qaflexible flat cable (16 core) (CN301)
qsCD board qdoptical pick-up block
(KSM-213D)
1floating screw (PTPWH M2.6)
3two floating screws (PTPWH M2.6) 9 2tray 3belt (table) 5pulley (table) 8screw (BTTP (M2.6)) 0SENSOR board 7gear (geneva) 9connector (CN731) 1floating screw (PTPWH M2.6) 6floating screw (PTPWH M2.6) 4floating screw (PTPWH M2.6)
3-14. MOTOR (TB) BOARD
3-15. MOTOR (LD) BOARD
6Remove the two solderings of motor. 8MOTOR (TB) board
7table motor assy (M741)
5two screws (BTTP (M2.6)) 4
3wire (flat type) (5 core) (CN742) 1stopper
2stopper
3Remove the two solderings of motor.
5MOTOR (LD) board
4loading motor assy (M751)
2two screws (BTTP (M2.6))
AMP TEST MODE
This mode is used to display the parameter of amplifier IC and display the VACS status.
Procedure:
1. Press the I/1 button to turn the power on.
2. Press three buttons of x , u and [USB] simultaneously.
3. When the AMP test mode is activated, the message “AMP TEST IN” is displayed on the fluorescent indicator tube momentarily, then amplifier adjustment mode is displayed on the fluorescent indicator tube.
4. Press the [TAPE REC PAUSE/START] button to changed over between VACS status display mode and the amplifier IC parameter display mode.
5. In this mode, press the [GROOVE] button to changed over DBFB on/off, and “DBFB ON” or “DBFB OFF” is displayed on the fluorescent indicator tube.
6. In this mode, press the [SURROUND] button to changed over surround on/off, and “SURROUND ON” or “SURROUND OFF” is displayed on the fluorescent indicator tube.
− For GT22/GT44 −
7. In this mode, press the [EQ BAND] button to enter the equalizer adjustment mode.
In the equalizer adjustment mode, press the [EQ BAND] button to change over the adjustment band as LOW/MID/HIGH. And turn the [OPERATION DIAL] knob to adjust the equalizer level of each bands.
− For GT55 −
7. In this mode, press the [BASS], [VOCAL] or [GUITAR] button to enter the parametric equalizer adjustment mode.
In the parametric equalizer adjustment mode, press the [BASS],
[VOCAL] and [GUITAR] button to change over the adjustment
band. And press the [BASS], [VOCAL] or [GUITAR] button to change over the equalizer frequency of each bands, or press the [+] and [--] buttons to adjust the equalizer level of each bands.
8. To release the amplifier IC parameter display mode or equalizer
adjustment mode, press the I/1 button to the power off.
MC TEST MODE
This mode is used to check operations of microprocessor. Procedure:
1. Press the I/1 button to turn the power on.
2. Press three buttons of x , u and [AUDIO] simultaneously.
3. When the MC test mode is activated, VACS level is displayed on the fluorescent indicator tube momentarily.
4. Press the [TUNING +] button, the message “ALL EQ MAX” is displayed on the fluorescent indicator tube momentarily and press the [TUNING --] button, the message “ALL EQ MIN” is displayed on the fluorescent indicator tube momentarily. 5. Press the [ENTER] button, the message “ALL EQ FLAT” is
displayed on the fluorescent indicator tube momentarily. 6. Turn the [VOLUME] knob clockwise, the message “VOLUME
MAX” is displayed on the fluorescent indicator tube momentarily and turn the [VOLUME] knob counterclockwise, the message “VOLUME MIN” is displayed on the fluorescent indicator tube momentarily.
7. Press the [TAPE REC PAUSE/START] button to changed over VACS on/off.
8. Press the I/1 button to release from this mode, then cold reset
is performed.
SECTION 4
TEST MODE
COLD RESET
The cold reset clears all data including preset data stored in the RAM to initial conditions. Execute this mode when returning the set to the customer.
Procedure:
1. Press three buttons of x , u and [GROOVE] simultaneously.
2. The message “COLD RESET” is displayed on the fluorescent indicator tube momentarily, then becomes standby states.
TUNING STEP CHANGE-OVER
A step of AM tuning interval can be changed over between 9 kHz and 10 kHz.
Procedure:
1. Press the I/1 button to turn the power on.
2. Press the [TUNER/BAND] button to select “AM”.
3. Press the I/1 button to turn the power off.
4. Press two buttons of [TUNING +] and I/1 simultaneously.
5. The message “AM 9K STEP” or “AM 10K STEP” is displayed on the fluorescent indicator tube, and thus the tuning interval is changed over.
CD SHIP (LOCK) MODE
This mode moves the optical pick-up to the position durable to vibration. Use this mode when returning the set to the customer after repair.
Procedure:
1. Press the I/1 button to turn the power on.
2. Press the [CD] button to select “CD”.
3. Press two buttons of u and I/1 simultaneously.
4. The message “LOCK” is displayed on the fluorescent indicator tube, and the CD ship mode is set.
CD SHIP (LOCK) MODE & COLD RESET
This mode is used to perform CD ship (lock) mode and cold reset simultaneously.
Procedure:
1. Press the I/1 button to turn the power on.
2. Press the [CD] button to select “CD”.
3. Press three buttons of x , [ILLUMINATION] and I/1
simultaneously.
4. The message “COLD RESET” is displayed on the fluorescent indicator tube momentarily, then becomes standby states.
ANTITHEFT LOCK MODE
This mode is used to unable to take sample disc out of disc table in the shop.
Procedure:
1. Press the I/1 button to turn the power on.
2. Press the [CD] button to select “CD”. 3. Insert a disc.
4. Press two buttons of x and Z for 5 seconds.
5. The message “LOCKED” is displayed on the fluorescent indicator tube and the disc table is locked. (Even if pressing
the Z button, the message “LOCKED” is displayed on the
fluorescent indicator tube and the disc table is locked)
6. To release this mode, press two buttons of x and Z for 5
seconds.
7. The message “UNLOCKED” is displayed on the fluorescent indicator tube and the disc table is unlocked.
VERSION DISPLAY MODE
This mode is used to check the model, destination and software version.
Procedure:
1. Press the I/1 button to turn the power on.
2. Press three buttons of x , u and [ILLUMINATION]
simulta-neously.
3. When this mode is activated, model type and destination (*1) are displayed on the fluorescent indicator tube.
*1) GRL2H : HCD-GT22 GRL2HS : HCD-GT44 GRL3HS : HCD-GT55
Example: GRL3HS_LATIN: Latin American models of HCD-GT55
4. Press the [TAPE REC PAUSE/START] button to display the soft-ware version (*2) and year, month, day of the softsoft-ware cre-ation.
*2) G**.*** : The version of system controller (IC901 on the MAIN board).
M**.*** : The version of USB control module in the sysytem controller.
U**.*** : The version of USB controller (IC901 on the USB board).
5. To release this mode, press three buttons of x , u and
[ILLUMINATIOM] simultaneously.
CD ERROR CODE DISPLAY MODE
This mode can be used for error code display of CD section. Procedure:
1. Press the I/1 button to turn the power on.
2. Press the [CD] button to select “CD”.
3. Press three buttons of x , [CD] and [SURROUND]
simulta-neously.
4. When this mode is activated, mechanism deck error code is displayed on the fluorescent indicator tube.
5. Press the [ENTER] button to changed over between optical pick-up error code display mode and mechanism deck error code mode.
Note:There are two[ENTER]buttons on the HCD-GT55, but it works in the same way whichever button is pressed.
6. Press the [TUNING +]/[TUNING ---] button to change over dis-play of error history number.
7. To release this mode, press the I/1 button to turn the power
off.
1. Mechanism Deck Error Code Mode
When this mode is entered, mechanism deck error code is displayed with the 10-character format on the fluorescent indicator tube. The first digit from the left indicates:
The first digit from the left indicates which mode the error history is. In the mechanism deck error code mode, “M” is displayed on the fluorescent indicator tube.
The second digit from the left indicates: (Error history number display)
The second digit from the left indicates which order the error history is. “0” indicates the latest error history, and each time the number increases by one, the error history goes back to one-previous error.
The third and 4th digit from the left indicates: (Error status display)
The third and 4th digit from the left indicates which error status is indicated.
Display Status
0 0 No error
0 8 Table operation time-out (Table does not move to the target position within the specified time)
1 6 In the chucking down operation, the operation was retried by the maximum number of times but the operation could not be completed
1 7 In the chucking up and down operation, the reverse recovery processing was attempted but it could not be recovered
1 8 In the chucking up operation, the operation was retried by the maximum number of times but the operation could not be completed
2 0 Loading operation time-out (Table does not move to the target position within the specified time)
2 2 As the chuck was in the ex-open status at the initialization, the closing was attempted but could not be completed
The 5th and 6th digit from the left indicates: (Present status display)
The 5th and 6th digit from the left indicates which operating status when an error occurred is indicated.
Display Status
0 1 Open completion status
0 2 From open status, the movement to chucking down position is under way
0 3 From chucking down position, the open operation is under way
0 4 Chucking down completion status 1 0 The chucking down operation is under way 1 1 The chucking up operation is under way 1 2 Close completion status
1 3 From close status, the ex-open operation is under way 1 4 From ex-open status, the close operation is under way 1 8 Ex-pen completion status
The 7th and 8th digit from the left indicates: (Motor status display)
The 7th and 8th digit from the left indicates which motor output status when an error occurred is indicated.
Display Status
× 0 No table motor output
× 1 Table motor forward output
× 2 Table motor backward output
× 3 Table motor break output 0 × No loading motor output 1 × Loading motor forward output 2 × Loading motor backward output 3 × Loading motor break output
5 REPEAT LIMIT CANCEL MODE
Number of repeat for CD playback is 5 times when the repeat mode is “REPEAT”. This mode is used to enables CD to repeat playback for limitless times.
Procedure:
1. Press the I/1 button to turn the power on.
2. Press the [CD] button to select “CD”.
3. Press three buttons of x , [CD] and u simultaneously.
4. The message “LIMIT OFF” is displayed on the fluorescent indicator tube momentarily, CD repeat 5 limit is cancelled.
CD/USB POWER MANAGE
This mode is used to changed over CD and USB power on/off for decreasing of reception noise in the tuner mode.
Procedure:
1. Press the I/1 button to turn the power on.
2. Press the [CD] button to select “CD”.
3. Press the I/1 button to turn the power off.
4. Press two buttons of x and I/1 simultaneously.
5. The message “CD POWER ON” or “CD POWER OFF” is displayed on the fluorescent indicator tube, and CD and USB power on/off changed over in the tuner mode.
BOOSTER ON/OFF
This mode is used to changed over MP3 booster on/off. Procedure:
1. Press the I/1 button to turn the power on.
2. Press the [USB] button to select “USB”.
3. Press three buttons of x , [SURROUND] and [USB]
simulta-neously.
4. The message “BOOSTER ON” or “BOOSTER OFF” is displayed on the fluorescent indicator tube, and MP3 booster on/off changed over.
EXCITER ON/OFF
This mode is used to changed over the exciter on/off. Procedure:
1. Press the I/1 button to turn the power on.
2. Press the [CD] button to select “CD”. 3. Insert a MP3 disc.
4. Press three buttons of x ,[SURROUND] and [AUDIO]
simul-taneously.
5. The message “EXCITER ON” or “EXCITER OFF” is displayed on the fluorescent indicator tube, and the exciter on/off changed over.
CD SERVICE MODE
This mode can run the CD sled motor freely. Use this mode, for instance, when cleaning the optical pick-up.
Procedure:
1. Press the I/1 button to turn the power on.
2. Press the [CD] button to select “CD”.
3. Press three buttons of x , [FOLDER ---] and [SURROUND]
simultaneously, the message “SERVICE” is displayed on the fluorescent indicator tube.
4. Press the [TUNING ---] button to move the optical pick-up to inside track and the message “SLED IN” is displayed on the fluorescent indicator tude, or press the [TUNING +] button to outside track and the message “SLED OUT” is displayed on the fluorescent indicator tude.
5. Press the [DISPLAY] button, “LD ON” or “LD OFF” is dis-The 9th and 10 th digit from the left indicates:
(Tray status display)
The 9th and 10th digit from the left indicates which target processing when an error occurred is indicated.
Display Status
0 1 Open operation 1 2 Close operation 1 8 Ex-open operation
2. Optical Pick-up Error Code Mode
When this mode is entered, optical pick-up error code is displayed with the 8-character format on the fluorescent indicator tube. The first digit from the left indicates:
The first digit from the left indicates which mode the error history is. In the optical pick-up error code mode, “D” is displayed on the fluorescent indicator tube.
The second digit from the left indicates: (Error history No. display)
The second digit from the left indicates which order the error history is. “0” indicates the latest error history, and each time the number increases by one, the error history goes back to one-previous error. The third and 4th digit from the left indicates:
(Error status display)
The third and 4th digit from the left indicates which error status is indicated.
Display Status
0 1 Not focused (TOC read without a disc) 0 2 GFS NG (TOC read with a disc chucked) 0 3 Start operation time-over
0 4 Defocused continuously (Defocused during TOC reading) 0 5 Q code not entered for specified time
0 6 Tracking not turned ON 0 7 Blank disc (Blank disc TOC read)
The 5th and 6th digit from the left indicates: (Error step display)
The 5th and 6th digit from the left indicates which processing when a trouble occurred
Display Contents
0 1 Power OFF in progress 0 2 Initialize in progress 0 3 Oscillation stopping
0 4 From oscillation stop, oscillation starting 0 5 Stopping
0 6 Stop operation is under way 0 7 Start operation in progress 0 8 TOC read in progress 0 9 Search operation is under way 0 A Playback operation is under way 0 B Pause operation is under way
0 C Playback manual search operation is under way 0 D Pause manual search operation is under way 0 E —
PANEL TEST MODE
This mode is used to check the fluorescent indicator tube, LEDs, phones jack, keys and control knobs. Procedure:
1. Press the I/1 button to turn the power on.
2. Press three buttons of x , [SURROUND] and [TUNER] simultaneously.
3. All segments on the fluorescent indicator tube and all LEDs light up.
4. Press two buttons of [ILLUMINATUION] and [ENTER] simultaneously to enter the key routes check mode.
5. In this mode, each time any button is pressed, it displays key route and key number of the button. (Refer to following table)
Example: [DISPLAY] button : “KEY 10000”
[TUNER/BAND] button : “KEY 40000”
[ILLUMINATION] button : “KEY 01000” [CD-TAPE SYNC] button : “KEY 00070”
6. Press two buttons of [ILLUMINATUION] and [ENTER] simultaneously to enter the key check mode.
7. In this mode, each time any button is pressed, “KEYCONT” value increases. However, once a button is pressed, it is no longer taken into account. (Maximum numbers are GT22: 29, GT44: 30, GT55: 39)
8. Press two buttons of [ILLUMINATUION] and [ENTER] simultaneously to enter the phones jack check mode.
9. In this mode, “H_P ON” is displayed when phones jack is inserted, and “H_P OFF” is displayed when phones jack is pulled out. 10. Press two buttons of [ILLUMINATUION] and [ENTER] simultaneously to enter the volume check mode and display “VOLUME
FLAT”.
11. In this mode, “VOLUME UP” is displayed when [VOLUME] knob is turned clockwise, and “VOLUME DOWN” is displayed when [VOLUME] knob is turned counterclockwise.
12. Press two buttons of [ILLUMINATUION] and [ENTER] simultaneously to enter the jog check mode and display “JOG FLAT”. 13. In this mode, “JOG UP” is displayed when [OPERATION DIAL] knob is turned clockwise, and “JOG DOWN” is displayed when
[OPERATION DIAL] knob is turned counterclockwise.
14. Press two buttons of [ILLUMINATUION] and [ENTER] simultaneously to release the Panel Test mode.
Key Key Routes
No. KEY0 KEY1 KEY2 KEY3 KEY4 (GT55 only)
1 DISPLAY ILLUMINATION ENTER DISC 1 +
2 POWER ERASE RETURN DISC 2 ENTER(PEQ)
3 CD PRESET EQ FOLDER + DISC 3 –
4 TUNER/BAND GROOVE TUNING + EX-CHANGE/ GUITAR DISC SKIP
5 TAPE A/B SURROUND PLAY/PAUSE STOP FOCUS (GUITAR)
6 AUDIO EQ BAND (GT22/GT44) TUNING – CD-USB SYNC/REC1 FOCUS (VOCAL) PLAY MODE (GT55)
7 USB FOLDER – CD-TAPE SYNC VOCAL
8 SUBWOOFER OPEN/CLOSE TAPE REC BASS
(GT44/GT55) PAUSE/START
SECTION 5
MECHANICAL ADJUSTMENTS
PRECAUTION
1. Clean the following parts with a denatured-alcohol-moistened swab :
record/playback head pinch roller
erase head rubber belts
capstan idlers
2. Demagnetize the record/playback head with a head demagnetizer. (Do not bring the head magnetizer close to the erase head.)
3. Do not use a magnetized screwdriver for the adjustments. 4. After the adjustments, appiy suitable locking compound to
the parts adjusted.
5. The adjustments should be performed with the rated power supply voltage unless otherwise noted.
TORQUE MEASUREMENT
Mode Torque Meter Meter Reading
2.6 – 6.9 mN⋅m FWD CQ-102C (30 – 70 g⋅cm) (0.41 – 0.97 oz⋅inch) FWD 0.15 – 0.59 mN⋅m Back Tension CQ-102C (1.5 – 6.0 g⋅cm) (0.021 – 0.083 oz⋅inch) 5.4 – 16.7 mN⋅m FF/REW CQ-201B 55 – 170 g⋅cm) 0.76 – 2.35 oz⋅inch)
TAPE TENSION MEASUREMENT
Mode Tension Meter Meter Reading
FWD CQ-403A more than 100 g (more than 3.53 oz)
3. Mode: Playback set test tape P-4-A063 (6.3 kHz, –10 dB) oscilloscope V H waveform of oscilloscope 0° +45° –45° +90° +135°+180° good wrong MIC board PHONES jack (J803)
2. Turn the adjustment screw and check output peaks. If the peaks do not match for L-CH and R-CH, turn the adjustment screw so that outputs match within 1dB of peak.
Screw position L-CH peak within 1dB Output level L-CH peak R-CH peak within 1dB Screw position R-CH peak
0 dB=0.775 V
DECK SECTION
set MIC board PHONES jack (J803) + – level meter test tape P-4-A063 (6.3 kHz, –10 dB)1. Demagnetize the record/playback head with a head demagnetizer.
2. Do not use a magnetized screwdriver for the adjustments. 3. After the adjustments, apply suitable locking compound to the
parts adjust.
TEST TAPE
RECORD/PLAYBACK HEAD AZIMUTH ADJUSTMENT
Note:Perform this adjustment for both decks.
Procedure:
1. Mode: Playback
Tape Signal Used for
P-4-A063 6.3 kHz, -10 dB Azimuth Adjustment
4. After the adjustments, apply suitable locking compound to the pats adjusted.
Adjustment Location: Playback Head (DECK-A)
CD SECTION
Note:
1. CD Block is basically constructed to operate without adjustment. 2. Use YEDS-18 disc (3-702-101-01) unless otherwise indicated. 3. Use an oscilloscope with more than 10 MΩ impedance.
4. Clean the object lens by an applicator with neutral detergent when the signal level is low than specified value with the following checks. 5. Check the focus bias check when optical pick-up block is replaced.
FOCUS BIAS CHECK
Procedure :
1. Connect oscilloscope to TP121 (RFI) and TP124 (VC) on the CD board.
2. Press the I/1 button to turn the power ON.
3. Set disc (YEDS-18) on the tray and press the u button to playback.
4. Confirm that oscilloscope waveform is as shown in the figure below. (eye pattern)
A good eye pattern means that the diamond shape (◊) in the
center of the waveform can be clearly distinguished.
Checking Location: + – CD board TP121 (RFI) TP124 (VC) oscilloscope (DC range) VOLT/DIV: 200 mV TIME/DIV: 500 ns level: 1.2 ± 0.3 Vp-p
TUNER SECTION
FM TUNE LEVEL CHECK
Procedure: 1. Turn on the set.
2. Input the following signal from signal generator to FM antenna input directly.
Carrier frequency: A = 87.5 MHz, B = 98 MHz, C = 108 MHz
Deviation : 75 kHz
Modulation : 1 kHz
ANT input : 35 dBu (EMF)
Note:Use 75 ohm coaxial cable to connect signal generator and the set. You cannot use video cable for checking.
Use signal generator whose output impedance is 75 ohm.
3. Set to FM tuner function and tune A, B and C signals. 4. Confirm “TUNED” is lit on the display for A, B and C signals. When the selected station signal is received in good condition, “TUNED” is displayed. signal generator set TP124 (VC)
– CD Board (Conductor Side) –
TP121 (RFI)
SECTION 7
DIAGRAMS
7-1. BLOCK DIAGRAM – CD SERVO, USB Section –
SYSTEM CONTROLLER IC901 (1/4) CD-MP3 PROCESSOR IC101 MUTE 2-AXIS DEVICE (TRACKING) (FOCUS) 95 89 A BD+3.3V DETECTOR FNi1 (A) RFo 97 FPi1 (B) 88 2 AGCi 3 RFRP RFZi 7 6 TEi TEZi 83 RFEQo 81 RFi 82 RFRPi 30 LO 27 RO 65 AIN (PI4) 66 BCKi (PI5) BCK A-IN BUS1-U BUS0-U BUS2-U BUS3-U BUCK-U 67 LRCKi (PI6) LRCK 51 PIO3 GATE 46
AoUT3 (PO4) ST-REQ
38 BUS0 R-CH 94 FNi2 (C) 96 FPi2 (D) 100 TNi (E) 98 TPi (F) 91 LDo MDi 92 2 VO1+ 1 VO1– 13 DMo LD PD LASER DIODE OPTICAL PICK-UP BLOCK (KSM-213DCP) B C D E F 12 FMo 10 TRo 9 FOo 20 IO0 (/HSO) I-V AMP M401 (SPINDLE) M402 (SLED) 12 VO2– 11 VO2+ 18 VO3+ 17 VO3– 26 VO4+ 27 7 IN4’ 24 IN3’ 20 IN2’ 9 IN1 3 BIAS 23 84 VRo VO4– M M
FOCUS/TRACKING COIL DRIVE, SLED/SPINDLE MOTOR DRIVE
IC401 S201 (LIMIT) BD+3.3V 24 XO 23 XI X102 16.9344MHz A CD-L : CD PLAY SIGNAL PATH
R-ch is omitted due to same as L-ch.
: USB VCC A B C D E F LD PD SP+ VC SP– SL+ SL– T+ T– F+ F– 47 AOUT2 (PO5) 63 BCK (PO8) CLK DATA 1 2 17 CD-BUS0 (I/O) 13 39
BUS1 3 4 16 CD-BUS1 (I/O)
5 40
BUS2 (SO) 9 8 15 CD-BUS2 (I/O)
12 CD-BUCK 6
41
BUS3 (SI) 11 10 14 CD-BUS3 (I/O)
19 CD-SEL1 12 BUS SWITCH IC301 1 2 13 3 4 5 9 8 6 11 10 12 BUS SWITCH IC302 DATA SELECTOR IC303 SELECT 42 BUCK (CLK) 4 2 3 CCE-U 13 CD-CCE 43 XCCE 54 SBSY 48 PIO0 7 18 MP3 IREQ 21 CD-SEL2 29 I-SBSY 5 REQ-U 6 12 14 13 9 10 11 1 CLK DATA LB I/O0 – I/O15 D0 – D15 S-RAM IC921 39 UB 40 OE 41 WE 17 CE 6 79 D+ 80 D– 77 USBOC USB CONTROLLER IC901 CN803 (USB) 3 2 1 D+ D– 78 USBPON 70 CS2 64 RD 65 WR 66 SRLLB 67 SRLUB VBUS VBUS POWER ON/OFF SWITCH IC915 5 1 4 OUT EN 3 FLG IN VBUS +5V 93 DATA 92 BCK 85 DATA 86 CLOCK 71 LRCK 94 GATE 97 ST-REQ 55 BUS0 56 BUS1 88 RXD1 87 TXD1 2 DI 84 DO 1 /RESET 57 BUS2 58 BUS3 59 /BUCK 60 /CCE 96 REQ 7 – 10, 13 – 16, 29 – 32, 35 – 38 18 – 25, 28 – 35 A0 – A15 A1 – A16 44 – 42, 27 – 24, 21 – 18, 5 – 1 37 – 43, 46 – 54 73 X2 75 X1 X901 9MHz AUTOMATIC POWER CONTROL Q301 BCK A-IN LRCK GATE ST-REQ BUS1-U BUS0-U BUS2-U BUS3-U BUCK-U CCE-U REQ-U 43 O-USB-TXD (SO) 42 I-USB-RXD (SI) 10 O-USB-RST (DO) 9 I-USB-CTS (DI) 11 O-USB-RESET
LOADING MOTOR DRIVE IC701 FIN RIN O-LM-F LEVEL SHIFT Q731 DISC TABLE ADDRESS SENSOR IC731 23 OUT1 4 OUT2 2 7 9 O-LM-R 22 M M751 (LOADING)
TABLE MOTOR DRIVE IC712 FIN RIN O-TM-F 25 OUT1 4 OUT2 2 7 9 O-TM-R 24 I-CD-SENS 26 I-ENCD 55 M (TABLE)M741 ROTARY
ENCODER DISC TABLE
ADDRESS DETECT REC D801 (USB)
O-USB-LED 37 LED DRIVE
Q931
7-2. BLOCK DIAGRAM – MAIN Section –
R-CH HP IN B CD-L A T001 BIAS OSC MUTING Q305 HRPE1 (REC/PB/ERASE) (DECK-B) HP1 (PB) (DECK-A) L-CH R-CH R-CH L-CH R-CH R-CH R-CH R-CH MUTING Q307 MUTING CONTROL SWITCH Q305, 306 MUTING Q401, 403 R-CH MUTING CONTROL SWITCH Q407 REC CONTROL SWITCH Q409, 410 R-CH REC AMP IC401 PB AMP IC301 ERASE BIAS OSC Q453 REC SWITCH Q405 PB SWITCH (DECK-B) Q303 REC BIAS SWITCH Q454, 455 AUDIO +9V R-CH PB SWITCH (DECK-A) Q301 R-CH+
DECK-A/B SELECT SWITCH, REC/PB SELECT SWITCH Q408 TUNER (FM/AM) AM FM ANT AM ANT TUNER-L TUNER-R PLL DO R-CH PLL DI PLL CLK PLL CE FM75Ω (COAXIAL) ANTENNA AUDIO J802 31 I-LV23004T-DI TUNED 34 I-TUNED 39 TAPE-L 1 TUNER-L 2 5 LIN DATA 6 CLK 16 DATA 15 CLK 2 10 AUX-L 37 MIX2 11 VOL IN-LTONE OUT-L OUT-L 14
9 LOUT 40 CD-L O-BIAS 33 O-LV23004T-DO 32 O-LV23004T-CLK 28 O-LC72121-CE 49 O-REC/PB 46 O-REC-MUTE 48 O-F-DATA 41 4 SAOUT I-STREAM 67 O-AUDIO-CLK 45 O-P-DATA 44 I-HP/MIC 58 12 BB12 13 BB22 D SW OUT C OUT E BASS AGC 3 REC OUT-L I-VACS I-TAPE-STAT 59 D213 D211 BAND-PASS FILTER Q111, 112 +4.1V REGULATOR Q701
+
R-CH R-CH M+9V BASS AGC Q113 BUFFER Q702 D031 3 PARAMETRIC EQUALIZER IC102 (GT55) (GT22/GT44) INPUT SELECTOR, TONE CONTROL,ELECTRICAL VOLUME IC103 CAMP+ M TAPE MECHANISM DECK BLOCK A-HALF B-SOL B-HALF A-PHOTO B-PHOTO B-REC-F CAPSTAN/REEL MOTOR DRIVE Q911, 914 TRIGGER PLUNGER DRIVE (DECK-B) Q912, 915 60 O-B-SOL 87 A-SOL TRIGGER PLUNGER DRIVE (DECK-A) Q913, 916 O-A-SOL 88 O-MOTOR 85 I-RELL-A 78 I-RELL-B 79 SYSTEM CONTROLLER IC901 (2/4) : TUNER (FM/AM) : CD PLAY SIGNAL PATH
R-ch is omitted due to same as L-ch.
: TAPE PLAY (DECK-A) : TAPE PLAY (DECK-B)
: MIC : TAPE REC : AUDIO IN
(GT44/GT55)
(GT22: E2, E3, E13, E51, MX, AR/GT44: E2, E3, E13, E51, MX, AR/GT55) AUDIO+9V J801 MIC RV801 MIC LEVEL MUTING Q801 MIC AMP IC801 (1/2) MIC AMP IC801 (2/2) 4 L+R SIGNAL D-LIGHT B+ D-LIGHT SYNC OUT J701 • Abbreviation AR : Argentina model E2 : 120V AC Area in E model E3 : 240V AC Area in E model E13 : 220V - 230V AC Area in E model E51 : Chilean and Peruvian models MX : Mexican model (Page 23) (Page 25) (Page 25) (Page 25) (Page 25)
7-3. BLOCK DIAGRAM – AMP Section –
OUT BUFFER IC251 C BASS AGC E SW OUT D POWER AMP MUTING Q251 OVER LOAD DETECT Q441 OVER LOAD DETECT Q501 R-CH MUTING Q272 BUFFER Q121 LINE AMP IC252 STANDBY SWITCH Q489 DC DETECT Q481, 482 IC441 (GT22/GT55) IC441 (GT44)+
+
TEMPERATURE DETECT Q483, 484 TEMPERATURE DETECT Q503, 507 R-CH R-CH R-CH TH441+
+
+
POWER AMP IC501 MUTING CONTROL SWITCH Q261 O-SYS-MUTE 1 O-STK-MUTE 36 O-SWR 2+
R-CH PROTECTOR Q485 RELAY DRIVE Q486, 488 (GT22) Q480, 486, 488 (GT44/GT55)+
PROTECT DETECT Q487 FAN MOTOR DRIVE Q043 – 045 FAN MOTOR DETECT Q046 RY441 B HP IN F PROTECT –1 –2 R L+
–
–
+
RY501 D037 M M001 (FAN) SPEAKER PHONES JK441+
–
SUB WOOFER OUTJK501 RELAY DRIVE Q502 SUB WOOFER SWITCH Q274 R-CH AUDIO+9V J803 SYSTEM CONTROLLER IC901 (3/4) : TUNER (FM/AM) SIGNAL PATH
R-ch is omitted due to same as L-ch. DC DETECT Q505, 506 (GT44/GT55) (Page 24) (Page 24) (Page 24) (Page 26) (Page 24)
7-4. BLOCK DIAGRAM – PANEL, POWER AMP Section –
REMOTE CONTROL RECEIVER IC601 FL701 FLUORESCENT INDICATOR TUBE 76 O-SWR-LED I-KEY0 –I-KEY3 KEY0 – KEY4 KEY0 – KEY3KEY0 KEY4 FLUORESCENT INDICATOR TUBE DRIVER IC701 SYSTEM CONTROLLER IC901 (4/4) F906 RECT D902 – 905 PROTECT DETECT Q011 RECT D001 RECT D910 D006 O-S-LED1 – O-S-LED6 S601 – 608 (KEY0), S611 – 616 (KEY1), S621 – 628 (KEY2), S631 – 638 (KEY3), S641 – 649 (KEY4) S608 (GT44/GT55), S641 – 649 (GT55) 5 O-POWER-RELAY 35 I-AC-CUT RESET SIGNAL GENERATOR IC902 RESET SWITCH Q903 – 905 D902 +3.3V BD+3.3V UNREG +16V VBUS+5V EVER +10V LEVEL SHIFT Q908 57 I-PROTECTOR 90 RESET 83 I-WAKEUPKEY 56 I-KEY4 66 I-VOL 2 – 13, 15, 16 DR35 [S0] – DR16 [S19] 38 – 19 DR0 [T0] – DR13 [T13] 70 – 75 61 – 64 LED DRIVE Q601 – 606 GRID DRIVE Q701 – 714 D601 – 606 (STREAM) O-G-LED, O-V-LED, O-B-LED 38 – 40 LED DRIVE Q921 – 923 LED DRIVE Q607 D612 SUBWOOFER 77 O-STBY-LED 81 I-SIRCS-IN D611 STANDBY ROTARY ENCODER MASTER VOLUME OPERATION DIAL S651 BASS D609 VOCAL D608 GUITAR D607 65 I-JOG ROTARY ENCODER S652 94 X2 95 X1 X902 20MHz 91 XT2 92 XT1 X901 32.768kHz SI 49 84 O-NJM3427A-DATA SCK 48 86 O-NJM3427A2-CLK CSb 51 68 O-NJM3427FA2-CS RSTb 52 69 O-NJM3427FA2-RESET (AC IN) RY901 POWER ON/OFF RELAY DRIVE Q903 VOLTAGE SELECTOR S901 D+1.5V +1.5V REGULATOR IC201 USB+3.3V D008 D009 D301, 302 D908 AUDIO+9V M+9V M+7V F907 RECT D011 – 014 RECT D021 – 024 F904 F905 RECT D402 F908 F909 RECT D401 D007 F PROTECT +9V REGULATOR IC021 +9V REGULATOR IC011 +3.3V REGULATOR IC006 +5V REGULATOR IC007 +4V REGULATOR Q901, 902 RELAY B+ 3 O-FRONT-SP-RELAY 52 I-USB-MONI 8 O-USB-POWER 4 O-CD-POWER B+ SWITCH Q041, 042 B+ SWITCH Q301, 302 B+ SWITCH Q303, 304 –27V REGULATOR Q902 AMP SECTION B+ AMP SECTION B+ FOR FLUORESCENT INDICATOR TUBE (GT22/GT55) (GT44) –VFL VF VF PT902 SUB POWER TRANSFORMER PT901 MAIN POWER TRANSFORMER GT22: MX, AR, AUS/ GT44: MX, AR, AUS/ GT55: MX, AR
GT22: E2, E3, E13, E51/ GT44: E2, E3, E13, E51/
GT55: E2, E51 GT22: MX, AR, AUS/ GT44: MX, AR, AUS/ GT55: MX, AR (GT44/GT55) (GT55) 45 46 XT XTb OSC VDD+3.3V D+3.3V, VREF+3.3V +VH –VH +VL –VL F909 F904 RECT D401 +VCC –VCC • Abbreviation AR : Argentina model AUS : Australian model E2 : 120V AC Area in E model E3 : 240V AC Area in E model E13 : 220V - 230V AC Area in E model E51 : Chilean and Peruvian models MX : Mexican model
• Note For Printed Wiring Boards and Schematic Diagrams
•Indication of transistor
Note on Schematic Diagram:
•All capacitors are in µF unless otherwise noted. (p: pF) 50 WV or less are not indicated except for electrolytics and tantalums.
•All resistors are in Ω and 1/4W or less unless otherwise
specified. • f : internal component. • 2: nonflammable resistor. • 5: fusible resistor. • C: panel designation. • A: B+ Line. • B: B– Line.
•Voltages and waveforms are dc with respect to ground under no-signal (detuned) conditions.
– CD Board – no mark : CD PLAY [ ] : USB – USB Board – no mark : USB – TC Board – no mark : TAPE PLAY ( ) : TAPE REC
〈〈 〉〉 : TAPE A { } : TAPE B – Other Board –
no mark : TUNER (FM/AM) ( ) : CD PLAY [ ] : TAPE PLAY
∗ : Impossible to measure
•Voltages are taken with a VOM (Input impedance 10 MΩ). Voltage variations may be noted due to normal produc-tion tolerances.
•Waveforms are taken with a oscilloscope.
Voltage variations may be noted due to normal produc-tion tolerances.
•Circled numbers refer to waveforms.
•Signal path.
F : TUNER (FM/AM)
J : CD PLAY
: USB
E : TAPE PLAY (DECK-A)
d : TAPE PLAY (DECK-B)
G : TAPE REC
f : AUDIO IN
N : MIC
•Abbreviation
AR : Argentina model AUS : Australian model E2 : 120V AC Area in E model E3 : 240V AC Area in E model E13 : 220V – 230V AC Area in E model E51 : Chilean and Peruvian models MX : Mexican model
Note on Printed Wiring Board:
• X: parts extracted from the component side. • Y: parts extracted from the conductor side. • W : indicates side identified with part number. • f : internal component.
• : Pattern from the side which enables seeing. (The other layers' patterns are not indicated.)
Caution:
Pattern face side: Parts on the pattern face side seen from (Conductor Side) the pattern face are indicated. Parts face side: Parts on the parts face side seen from (Component Side) the parts face are indicated.
• Circuit Boards Location
C
B
These are omitted. E
Q
B
These are omitted.
C E
Q
Note: The components identified by mark 0 or dotted line with mark 0 are critical for safety.
Replace only with part number specified.
CD board SW board MOTOR (LD) board SENSOR board DRIVER board MOTOR (TB) board TUNER (FM/AM) KEY LEFT board
KEY TOP board (GT55)
PANEL board
VOLUME board
KEY RIGHT board USB board
MIC board
MAIN board 5V REG board
SUB WOOFER board (GT44/GT55)
AMP board
TC board
SW-SP board (GT44/GT55) TRANS board
7-5. PRINTED WIRING BOARD – CD Board –
• See page 27 for Circuit Boards Location. : Uses unleaded solder. R402 C404 C403 R405 R408IC401
R108 R109 C136 C135 R128 R130 R134 R135 R136 R129 R139 R143 R142 R140 C124 C125 C122 C123 R151 C138 C137 C140 C139 C142 C141 C143 R144 C100 C107 R414 C144 C146 C145 C147 C148 C149 C150 R148 R146 C105 C104 R145 R147 R149 R150 C118 C117 CN301 C303 C302 C301 R102 C127 C126 R101 C103 C113 C102 C101 C119 C120 R105 R106 C132 R104 R154 C116 R153 C109 C110 R110IC101
R210R209 R218 R208 R219 R207 R220 R206 R221 R205 R222 R204 R223 R203 R157 R156 R202 CN202 C152 C151 R224 M401 S201 M402 C405 C401 R415 R114 C153 R118 R212 R213 C106 C306 R303 R304 R302 R301 C307 Q301 C309 C128 C130 R155 C115 R111 R112 C133 R119 C112 C108 R214 R216 R121 C201 C202 C204 C205 R201 C206IC201
C207 R211 X102 X102CD BOARD
(CONDUCTOR SIDE)
1-872-620-11 (11) (LIMIT)
M
(SPINDLE)M
(SLED)A
MAIN BOARD CN302 TP124(VC) TP121 (RFI) OPTICAL PICK-UP BLOCK (KSM-213DCP) 1 3 5 4CD BOARD
(COMPONENT SIDE)
1-872-620-11 (11) E
A
B
C
D
E
F
1
2
3
4
5
6
7
8
9
10
(Page 37)7-6. SCHEMATIC DIAGRAM – CD Board –
• See page 36 for Waveforms. • See page 58 for IC Block Diagrams. • See page 61 for IC Pin Function Description. IC B/DA
MAIN BOARD (3/4) CN302 2 1 IC B/D OPTICAL PICK-UP BLOCK (KSM-213DCP) M M DATA CLK + + + R224100 R121 100 R108 R109100 R154 R153 C201 R304 R201 R110 R303 R203 R204 R205 R206 R207 R208 R209 R210 R219 R223 R222 R221 R218 R112 R202 R211 Q301 R301 C202 R157 TP121 (RFI) TP124 (VC) R156 CN301 R101 C401 R415 R102 R128 R129 R143 R142 R139 R114 R140 R151 R220 R150 R212 IC101 R105 R106 IC201 X102 C301 C307 C309 C100 C138 C153 C151 C204 C130 C128 C113 C127 C126 C103 C102 C120 C118 C117 C101 C124 C125 R145 R146 R147 R148 R149 C149 C105 C143 C146 C145 C148 C104 C405 C404 C403 C205 C116 C133 CN202 C110 R111 C115 R155 C109 C132 R104 C123 C122 C139 C150 R136 R135 R134 C112 C108 R119 R118 C136 C107 R130 R144 C144 C147 C140 C137 C141 C142 C106 R302 C306 C303 C302 R405 R402 R408 R414 C207 C152 C206 IC401 1M 1M 100 10V 2.2 0 10k 2.2 100 100 100 100 100 100 100 100 100k 100k 100k 100k 100k 100 0 100 2SA2119K 100k 100 10V 100 100 16P 220 220 10V 47k 10k 470k 1k 47k 22k 47k 10k 0 0 100k 0 TK63115SCL-G@GT 0.1 1 0.001 0.1 470p 470p 0.1 0.1 0.0022 0.1 0.1 0.1 0.01 0.01 0.022 C119 0.022 0.1 0.0047 0.0047 0 0 0 0 0 22p 0.1 0.01 470p 0.01 47p 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 100 22 6.3V 47 0.1 0.1 0 470p 470p 0.01 0.001 22k470k 1M 0.1 0.1 47p 0.1 4.7k 22k 0.1 0.1 0.01 0.01 0.0022 0.1 100 10V 0 100 10V 10 10 10k 2.2k 2.2k 4.7k 1 470p 1 BA5826SFP-E2 SP-SP+ SL+ SL-100 R213100 R214100 R216 100 1M 1k 16.9344MHz TC94A70FG-008 (S, D) 5p 5p 27P 0 100k IC101 CD-MP3 PROCESSOR IC401FOCUS/TRACKING COIL DRIVE, SLED/SPINDLE MOTOR DRIVE
IC201 +1.5V REGULATOR SP-SP+ SL+ SL-M401 (SPINDLE) M402 (SLED) AUTOMATIC POWER CONTROL S201 (LIMIT) 0.1 (Page 40)
7-7. PRINTED WIRING BOARDS – CHANGE Section –
• See page 27 for Circuit Boards Location. : Uses unleaded solder. JW702 JW703 JW704 JW705 JW706 JW707 JW 708 JW711 CN705 JW712 JW701 JW 709 JW713 JW714 JW710 R 736 CN702 R751 C752 CN703 CN704IC712
R 713 Q731 C751 D711 D 701 C737 R 734 R733 R732 R723 R722 R721 R731 R712 R711 R 702 R701 C736 C735 C741 C731 C715IC701
CN701 CN721 M751IC731
CN731 CN741 CN742 M741 CN751 S751 1-866-201-12 (12) 1 2 EDRIVER BOARD
B
MAIN BOARD 1 9 1 9 1 4 S711 ROTARY ENCODER DISC TABLE ADDRESS DETECT 1 2 MMOTOR (LD) BOARD
1-687-133-12 (12) (LOADING) 1 2SENSOR BOARD
1-687-132-12 (12) E C A KMOTOR (TB) BOARD
M 1-687-134-12 (12) 1 3 (TABLE)SW BOARD
12 1 2 DISC TABLE OPEN/CLOSE DETECT OPEN CLOSEA
B
C
D
E
F
G
H
1
2
3
4
5
6
7
8
9
10
(Page 37) • Semiconductor LocationRef. No. Location
D701 E-7 D711 E-7 IC701 F-7 IC712 F-8 IC731 F-5 Q731 C-9
7-8. SCHEMATIC DIAGRAM – CHANGE Section –
• See page 58 for IC Block Diagrams. C741 R702 R701 D701 C751 R713 R712 R711 D711 CN721 R722 R721 R723 C736 C735 C737 R731 C731 R733 CN704 E3 E2 E1 CN703 CN742 CN702 CN741 IC731 CN751 CN705 C752 R751 CN731 Q731 M751 M741 IC701 IC712 R734 R732 CN701 C715 R736 S751 0.01 100 470 MTZJ-T-77 5.1A 0.01 22k 4.7k 1k MTZJ-T-77 3.6B 2P 4.7k 4.7k 4.7k 0.1 0.1 0.1 100 10 50V 1k 2P 4P 5P 5P 3P RPI-576 2P 2P 0.1 4.7k 3P DTC114ESA BA6956AN BA6956AN 12k 10k 13P 100 16V 390 RNF RNF TM-2 GND TM-1 SENS-IN SENS-OUT GND TM-1 TM-2 SENS-IN SENS-OUT GND SENS-IN SENS-OUT GND SENS-IN SENS-OUT GND GND OPEN SW OPEN SW LM-2 LM-1 LM-1 LM-2 GND E-1 E-2 E-3 VCC OUT2 GNDVREF OUT1 VM FIN RIN
VCC
OUT2 GND
VREF OUT1 VM FIN RIN
LM-R TM-R E-1 E-2 E-3 TBL ADDRESS SENS OPEN SW (LOADING) ADDRESS DETECT (TABLE) OPEN CLOSE OPEN/CLOSE DETECT DRIVE LOADING MOTOR DRIVE TABLE MOTOR LEVEL SHIFT D+3.3V M+9V M-GND M-GND LM-F TM-F DISC TABLE S711 DISC TABLE DISC TABLE ADDRESS SENSOR ROTARY ENCODER
B
MAIN BOARD (3/4) (Page 40)7-9. PRINTED WIRING BOARD – USB Board –
• See page 27 for Circuit Boards Location. : Uses unleaded solder. R928 CN904 C902 C903 C904 C905 C907 R983 R901 R937 R938 C901IC915
C916 C917 R913 R915 X901 C909 R919 C910 C912 R981 R985 C908 R922 C913 R934 R986 C915 C906 C922 C921 R977 R978 R979 R932 R982 R984 R976 CN907 CN901 CN903 RB922 RB921IC921
RB924 RB923 R975 R974 R973 R972 R971 R970 R902 R941 R943 R904 R944 R905 R906 R903 R942 R907 C930 FB902 D901 FB901 R917 R916 D902 C920 R925 R926 R924 R923 C914 R920 R921 R945 R933 R947 R950 JR902IC901
C919D
MAIN BOARD CN301USB BOARD
(COMPONENT SIDE)
1-872-405-12
(12)
1-872-405-12 (12)
USB BOARD
(CONDUCTOR SIDE)
K A/K A A/K A K (NC)
C
5V REG BOARD 3 1 4 5A
B
C
D
1
2
3
4
5
6
7
8
9
10
1 4 21 E MIC BOARD CN802 (Page 37) (Page 37) (Page 42)7-10. SCHEMATIC DIAGRAM – USB Board –
• See page 36 for Waveforms. • See page 58 for IC Block Diagrams. • See page 61 for IC Pin Function Description.C
5V REG BOARDE
MIC BOARD CN802D
MAIN BOARD (3/4) CN30111
R986100 DATA R985100 CLOCK C930 0 C919 0.1 CLOCK DATA CLK DATA R970 R971 R972 R973 R974 R975 R976 R977 R979 R978 R932 R982 R984 RB922 RB921 RB923 RB924 C907 C906 C921 R901 C901 R937 R983 C902 JR902 C903 C922 R907 R906 R905 R904 R903 R902 R917 R915 R913 C908 R919 C909 R916 C910 C912 R944 R943 R942 R941 C905 C904 R933 R934 R938 C915 C913 C914 R981 R922 R924 R923 R921 IC921 CN904 R926 R925 C920 IC915 C916 R920 CN907 CN903 CN901 FB902 FB901 D902 C917 R945 R947 IC901 R928 D901 X901 R950 100 100 100 100 100 100 100 100 100 100 100 100 100 47 47 47 47 0.1 0.1 0.1 10k 0.1 100 100 10 16V 0 10 16V 0.1 4.7k 4.7k 4.7k 4.7k 4.7k 4.7k 0 10k 100k 0.1 100 22p 0 22p 10p 100k 100k 100k 100k 0.1 10 16V 0 10k 100 0.1 0.1 0.1 100 100k 27 27 100k IS61LV6416-10T 7P 15k 15k 0.1 R5523N001BTR-F 0.1 10k 21P 5P 2P 4.7k 4.7k 0 9MHz 4.7k A 1 3 A 1 4 A 1 5 D 0 D 1 D 2 D 3 D 4 D 5 D 6 D 7 R D W R L B U B S R A M -C S A8 A9 A10 D7 D4 D5 D6 WR D0 D1 D2 D3 SRAM-CS A11 A12 A13 A14 A15 LB UB RD A7 A8 A9 A10 A11 A12 A4 A5 A6 D12 D13 D14 D15 A4 A5 A6 D8 D9 D10 D11 D12 D13 D14 D15 B U S 0 B U S 1 B U S 2 B U S 3 B U C K C C E USB-SI USB-SO DO U S B -R S T L R C K BCK REQ ST-REQ A-IN GATE LRCK CCE BUCK BUS3 BUS2 BUS1 BUS0 DO DI USB-SO USB-SI BCK A-IN GATE REQ ST-REQ USB-RST D I A7 A16 A 1 6 A1 A2 A3 A1 A2 A3 D11 D10 D9 D8 BOOT AMO TXD1 RXD1 R E S E T BOOT AM0 TXD1 RXD1 RESET EN FLG EN FLG MC2837 220 6.3V TMP92CD28FG-2CB4 MC2837 D+ D-AM0 DVSS DVSS R VO U T1 R VIN RV IN RV O U T2 DVSS DVSS D VS S AM 1 X2 D VS S X 1 VBUS-5V DVDD+3.3V DVSS LRCK CCE BUCK BUS3 BUS2 BUS1 BUS0 USB-RST ST-REQ REQ GATE A-IN BCK VBUS-GND BOOT RESET RXD1 TXD1 DVSS VCC AM0 DI(CTS) DO(RTS) USB-SI(RXD) USB-SO(TXD) NC A6 A5 A4 A3 NC I/O8 I/O10 I/O11 VDD GND I/O12 I/O13 I/O14 I/O15 A2 A1 A0 I/O9 NC A7 A8 A9 A10 I/O7 I/O6 I/O5 I/O4 GND VDD I/O3 I/O2 I/O1 I/O0 A11 A12 A13 A14 A15 WE CE LB UB OE A 13 GND D+ D-VBUS EN GND OUT IN FLG (USB) (NC) S-RAMVBUS POWER ON/OFF SWITCH A12 A11 A10 A9 A8 DVCC A7 A6 A5 A4 A3 A2 A1 A0 D15 D14 D13 D12 D11 D10 D9 D8 DVCC D 7 D 6 D 5 D 4 D 3 S 2 D 1 D 0 D V SS D V CC DV CC DV SS N O U SE NO U S E NO U S E DVCC G-3 NO U S E NO U S E D I G-2 G-1 ST-REQ REQ DVCC GATE DATA BCK SCL SDA NO USE RXD1 TXD1 CLOCK DATA DO NO USE USBPON USBOC DVCC BO OT N O USE S R LU B S RLLB R D W R CS2 D VCC NO US E /CCE /B U CK B U S3 B U S2 B US1 B US0 A16 A15 A14 USB CONTROLLER LRCK /R ESET (Page 40) (Page 43) (Page 41)
IC301
IC401
D401 Q303 Q402 Q301 Q401 Q302 Q408 Q304 Q306 Q404 Q410 Q405 Q407 Q406 Q454 Q305 Q403 Q409 C355 C354 C353 C352 C328 C327 C324 C323 C316 C315 C304 C303 C302 C301 C466 C462 C461 C433 C430 C418 C417 C416 C414 C413 C412 C411 C406 C405 C404 C403 JR316 JR315 JR313 R351 R350 R349 R326 R325 R324 R323 R322 R321 R320 R319 R318 R317 R316 R315 R314 R313 R312 R311 R310 R309 R308 R307 R306 R305 R304 R303 R302 R301 R487 R486 R484 R483 R482 R481 R464 R463 R462 R461 R459 R458 R457 R456 R455 R454 R453 R452 R451 R450 R449 R444 R443 R442 R441 R440 R438 R437 R436 R435 R434 R433 R432 R431 R430 R429 R428 R427 R424 R423 R414 R413 R412 R411 R408 R407 R406 R405 R404 R403 R402 R401 D301 JR305 JR320 JR303 JR319 JR308 JR318 JR307 JR301 JR309 JR302 JR311 JR304 JR310 JR317 JR306 B E B E 1 2 10 11 3 1 18 Q455 Q453 C356 C351 C350 C330 C329 C318 C317 LP302 LP301 T001 C460 C456 C454 C453 C452 C410 C409 C402 C401 CN008 CN301 CN302 JW301 JW320 JW316 JW306 JW309 JW315 JW304 JW303 JW317 JW305 JW319 JW313 JW307 JW302 JW311 JW310 JW318 JW321 JW308 W302 W301 JW312 B E BE B E GS GS 1 4 58 BE BE B E 14 5 8 BE BE BE B E B E G S G S 1-872-797-11 (11)TC BOARD
J
MAIN BOARD CN202 HRPE1 REC/PB/ ERASE HEAD (DECK-B) HP1 (PB HEAD) (DECK-A) D D D D E EA
B
C
1
2
3
4
7-11. PRINTED WIRING BOARD – TC Board –
• See page 27 for Circuit Boards Location. : Uses unleaded solder.(Page 37) • Semiconductor
Location
Ref. No. Location
D301 B-1 D401 B-3 IC301 B-1 IC401 B-3 Q301 C-1 Q302 C-2 Q303 C-2 Q304 C-2 Q305 C-3 Q306 C-3 Q401 C-3 Q402 C-2 Q403 C-2 Q404 B-3 Q405 B-3 Q406 B-3 Q407 C-1 Q408 A-4 Q409 A-3 Q410 B-3 Q453 B-4 Q454 B-4 Q455 B-4
7-12. SCHEMATIC DIAGRAM – TC Board –
• See page 36 for Waveforms BOARD (2/4)J
MAIN CN20221
22
0.7 <<0.7>> {0} 0.1 <<0.1>> {6.6} 0<<0>> {6.8} 4 <<4>> {4.2} 4 <<4>> {4.2} 0.1 <<0.1>> {6.6} 4<<4>>{4.2} 0.1<<0.1>>{6.6} 4 <<4>> {4.2} 4 <<4>> {4.2} 0.1<<0.1>>{6.6} 4 <<4>> {4.2} 4 <<4>> {4.2} 4 <<4>> {4.2} 4 <<4>> {4.2} 3.3 <<3.3>> {6.8} 3.3 <<3.3>> {6.8} 0.1 <<0.1>> {6.1} 0<<0>>{4.8}(-10.5) 0<<0>>{4.8}(-10.5) 0<<0>>{4.8}(-10.5) 0<<0>>{4.8}(-10.5) 0<<4>>{4.2}(-3.6) 0<<0>> {4.2} 4<<4>>{4.2} 0.3(8.6) 0.3(5) 0.3(0.8) 0(0.2) 9.1(7.9) (8.6)9.1 7.7<<7.7>>{8} 0 4 <<4>> {4.2} 4<<4>>{4.2} 4 <<4>> {4.2} 4 <<4>> {4.2} 4 <<4>> {4.2} 4<<4>>{4.2} 7.7<<7.7>>{8} 4<<4>>{4.2} 4<<4>>{4.2} 0 <<0.1>> {6.8} (-10.5)0 <<0>>{5.4} 4<<4>> {4.2} 3.5(4.2) <<4>> (3.8) 3.5<<3.5>> (4.2){3.8} 4<<4>> {4.2} (0.7)0 9.1(0) 0 3.1 4<<4>> {4.2} 4<<4>>{4.2} 4<<4>>{4.2} 4 <<4>> {4.2} 4 <<4>> {4.2} 7.7 <<7.7>> {8} 3.5(4.2) <<3.5>> {3.8} 4<<4>>{4.2} 4<<4>>{4.2} 4 <<4>> {4.2} 0 0 <<0>> {4.8} (-10.5) 16V 47 C452 1 2 3 4 5 6 7 8 9 10 11 11P CN008 NC DECK-D-GND O-BIAS REC-MUTE +9V REC/PB SW REC-L REC-R A-GND PB-R PB-L 50V0.1 C401 50V 0.1 C402 0.1 C430 47p C403 47p C404 10p C411 10p C412 0.01 C417 0.01 C418 470k R411 470k R412 220k R413 220k R414 150k R423 150k R424 220p C405 220p C406 220p C413 220p C414 6.8k R407 6.8k R408 50V10 C409 50V 10 C410 10 R427 10 R428 0.01 C433 47k R442 10k R451 10 R455 MC2838-T112-1 D401 2SC3052EF-T1-LEF Q404 2SC3052EF-T1-LEF Q403 2SC3052EF-T1-LEF Q401 2SC3052EF-T1-LEF Q402 2SC3052EF-T1-LEF Q454 4.7k R453 4.7k R454 4.7 R458 0.001 C453 22k R457 6800p C454 0 R459 0.01 C456 2.2k R461 2.2k R462 1k R463 1k R464 470p C462 470p C461 0 R487 22 R449 22 R450 22 R456 2SC3052EF-T1-LEF Q408 47k R482 10k R481 0 JR313 0 R483 2.2k R484 100 R349 10k R435 10k R436 2.2k R437 2.2k R438 100k R443 10k R444 50V 10 C356 1k R431 47k R433 4700p C466 10k R429 4700p C416 47k R434 1k R432 10k R430 0 R350 0 R441 4.7k R307 4.7k R308 0.01 C355 100 R315 100 R316 47k R303 47k R304 1000p C303 1000p C304 220k R306 + -NJM4558V-TE2 IC401(1/3) 3 2 1 + -NJM4558V-TE2 IC401(2/3) 5 6 7 NJM4558V-TE2 IC401(3/3) 8 POWER 4 GND 1000p C302 47k R301 47k R302 1000p C301 + -NJM14558V-TE2 IC301(1/3) 3 2 1 + -NJM14558V-TE2 IC301(2/3) 5 6 7 NJM14558V-TE2 IC301(3/3) 8 POWER 4 GND 6800p C323 6800p C324 470 R310 470 R309 47 R313 47 R314 220 R311 220 R312 22k R319 22k R320 4.7k R323 4.7k R324 470k R317 470k R318 47p C315 47p C316 50V 22 C318 50V 22 C317 220p C327 220p C328 16V 220 C350 0.1 C353 1k R351 10V 220 C351 0.1 C352 100 R325 100 R326 1 2 3 4 5 6 7 8 8P CN302 EH+ EH-GND REC-L PB-L PB-R REC-R GND 1 2 3 3P CN301 Lch REF Rch UDZW-TE17-4.3B D301 220k R305 0.1 C354 0 R486 100 R321 100 R322 6 2 1 3 5 4 T001 KTA1271Y-AT Q455 RT1N141C-TP-1 Q409 RT1N431C-TP-1 Q410 S 2SJ461Q301 S 2SJ461 Q302 0 JR315 0 JR316 KTC3203Y-AT Q453 S 2SK2158-T2B Q303 S 2SK2158-T2BQ304 0.047 C330 47k R401 47k R402 47k R404 47k R403 47k R405 47k R406 47k R452 10k R440 0.047 C329 JW312 ISA1235AC1TP-1EF Q405 ISA1235AC1TP-1EFQ406 ISA1235AC1TP-1EFQ407 ISA1235AC1TP-1EF Q305 ISA1235AC1TP-1EF Q306 L-CH R-CH L-ch R-ch + -+ -+ -ERASETC BOARD
A
10
1
2
J
H
B
13
11
C
7
8
I
14
F
9
6
K
4
15
16
3
G
D
5
17
E
12
REC AMPIC401
REC SWITCHREC BIAS SWITCH Q454,455 REC CONTROL SWITCHQ409,410
BIAS OSC MUTING BIAS OSC Q402,404 CONTROL SWITCH MUTING MUTING Q401,403 MUTING MUTING PB SWITCH(DECK-B) PB SWITCH(DECK-A) PB SWITCH(DECK-A) PB SWITCH(DECK-B) HRPE1 (REC/PB/ERASE) (DECK-B) (PB) (DACK-A) HP1
IC301
PB AMP DECK-A/B SELECT SWITCH, REC-PB SELECT SWITCH REC SWITCH BIAS OSC (Page 39)• Waveforms
– CD Board –
– USB Board –
– TC Board –
– MAIN Board –
– PANEL Board –
1
IC101 ia (RFi) (CD play mode) 200 mV/DIV, 500 ns/DIV 0.5 to 1.3 Vp-p2
IC101 wf (XO) (CD play mode) 1 V/DIV, 20 ns/DIV 59.1 ns 3.3 Vp-pqa
IC901 ud (X2) 1 V/DIV, 50 ns/DIV 111 ns 3.7 Vp-pws
Q453 (Collector) (REC mode)5 V/DIV, 20 µs/DIV 30.4 µs 10 Vp-p
ea
IC901 oa (XT2) 1 V/DIV, 20 µs/DIV 30.4 µs 2 Vp-p 50 ns 1.6 Vp-pes
IC901 of (X2) 1 V/DIV, 20 ns/DIVed
IC901 ih (O-NJM3427A2-CLK) 2 V/DIV, 2 µs/DIV 3.2 µs 3.3 Vp-p 800 ns 3.2 Vp-pra
IC701 rh (XTb) 2 V/DIV, 500 ns/DIVwa
Q453 (Base) (REC mode)1 V/DIV, 20 µs/DIV 30.4 µs
