Q7T3-FP737S Dual function LCD Monitor Service Guide
Alignment Procedure
1 Confidential
1. Alignment procedure (for function adjustment)
A. Preparation:
1. Setup input timing ICL-605, 32-Grays pattern.
2. Setup unit and keep it warm up at least 30 minutes.
B. Timing adjustment:
1. Enter factory setting area (press “ENTER”, “EXIT” and then press “SOFTPOWER”).
2. Check the settings to following values:
Contrast = 50
Brightness = 90
Volume = 30
OSD time = 20
Color = sRGB
Language = English
Then, turn off the monitor power.
3. Turn on power enter user area.
C. Color balance adjustment:
1. Enter factory setting area (press “ENTER”, “EXIT” and then press “SOFTPOWER”).
2. Setup input timing ICL-605 (1280*1024 75Hz), 5-MOSAIC pattern.(timing 202 pattern 42)
3. Press”I-key”,to enter window for whitebalance and burning mode.
4. Press “Whitebalance”, to Calibrate ADC.
5. Setup input timing ICL-605, 32 -Gray pattern.
6. Checking if the picture is no good, reject this monitor.
D. Color adjustment:
1. Setup input timing ICL-605, white pattern.
2. Measure color temperature by Minolta CA-110 (or equivalent equipment).
3. Alignment the color temperature Bluish, Reddish & sRGB. The color temperature
specification as follows:
X+- 0.283+(-)
0.03
White Balance
(Bluish, 9300K set on OSD)
Y+- 0.297+(-)
0.03
X+-
0. 326+(-) 0.03
White Balance
(Reddish, 5800K set on OSD)
Y+-
0. 342+(-) 0.03
X+- 0.
313+(-)
0.03
White Balance
Q7T3-FP737S Dual function LCD Monitor Service Guide
Alignment Procedure
2 Confidential
4. Turns off the monitor power.
E. Writing EDID file:
1. Setup a PC with DDC card.
2. Connect PC to monitor with a D-sub signal cable.
3. Please refer to the C212 for the correct EDID file.
4. Runs the writing program to write the EDID file into EEPROM for analog input, ie. 15-pin
D-sub.
5. Read both EEPROM data and confirm it to match with the C212 document definition.
6. Connect PC to monitor with a DVI-D signal cable.
7. Please refer to the C212 for the correct EDID file.
8. Runs the writing program to write the EDID file into EEPROM for DVI input, ie. 24-pin
DVI-D.
Q7T3-FP737S Dual function LCD Monitor Service Guide
Alignment Procedure
3 Confidential
F. Command definition:
PC Host will send 0x7C IIC slave address and then following 4 bytes command
I2C Send Command
Byte1
Byte2
Byte3
Byte4
Write Contrast
CA
55
Data
checksum
Write Brightness
CA
56
Data
checksum
Write Red Gain
CA
57
Data
checksum
Write Green Gain
CA
58
Data
checksum
Write Blue Gain
CA
59
Data
checksum
Read Contrast
C3
55
XX
checksum
Read Brightness
C3
56
XX
checksum
Read Red Gain
C3
57
XX
checksum
Read Green Gain
C3
58
XX
checksum
Read Blue Gain
C3
59
XX
checksum
Write C1 (Bluish) R-Gain Data to NVRAM
AA
3C
Data
checksum
Write C1 (Bluish) G-Gain Data to NVRAM
AA
3D
Data
checksum
Write C1 (Bluish) B-Gain Data to NVRAM
AA
3E
Data
checksum
Write C2 (sRGB) R-Gain Data to NVRAM
AA
4C
Data
checksum
Write C2 (sRGB) G-Gain Data to NVRAM
AA
4D
Data
checksum
Write C2 (sRGB) B-Gain Data to NVRAM
AA
4E
Data
checksum
Write C3 (Reddish) R-Gain Data to NVRAM
AA
5C
Data
checksum
Write C3 (Reddish) G-Gain Data to NVRAM
AA
5D
Data
checksum
Write C3 (Reddish) B-Gain Data to NVRAM
AA
5E
Data
checksum
Write User R-Gain Data to NVRAM
AA
6C
Data
checksum
Write User G-Gain Data to NVRAM
AA
6D
Data
checksum
Write User B-Gain Data to NVRAM
AA
6E
Data
checksum
Read C1 (Bluish) R-Gain data from NVRAM
A3
3C
XX
checksum
Read C1 (Bluish) G-Gain data from NVRAM
A3
3D
XX
checksum
Read C1 (Bluish) B-Gain data from NVRAM
A3
3E
XX
checksum
Read C2 (sRGB) R-Gain data from NVRAM
A3
4C
XX
checksum
Read C2 (sRGB) G-Gain data from NVRAM
A3
4D
XX
checksum
Read C2 (sRGB) B-Gain data from NVRAM
A3
4E
XX
checksum
Read C3 (Reddish) R-Gain data from NVRAM
A3
5C
XX
checksum
Read C3 (Reddish) G-Gain data from NVRAM
A3
5D
XX
checksum
Read C3 (Reddish) B-Gain data from NVRAM
A3
5E
XX
checksum
Read User R-Gain data from NVRAM
A3
6C
XX
checksum
Read User G-Gain data from NVRAM
A3
6D
XX
checksum
Read User B-Gain data from NVRAM
A3
6E
XX
checksum
Change Color Temperature to C1 (Bluish)
CC
1
XX
checksum
Change Color Temperature to C2 (sRGB)
CC
2
XX
checksum
Change Color Temperature to C3 (Reddish)
CC
3
XX
checksum
Change Color Temperature to User
CC
4
XX
checksum
Q7T3-FP737S Dual function LCD Monitor Service Guide
Alignment Procedure
4 Confidential
User mode to factory mode
1A
5A
XX
checksum
Auto Color (Offset1, Offset2, Gain)
1B
5A
XX
checksum
Factory mode to User mode
1E
5A
XX
checksum
Clear user area data
1F
5A
XX
checksum
On burn in mode
CE
1
XX
checksum
Off burn in mode
CE
XX*
XX
checksum
Change Language Setting
66
0~7
XX
checksum
*: Any value except 1 can off burn-in mode
Read EEPROM Bank-0
B0
Address
XX
checksum
Read EEPROM Bank-1
B1
Address
XX
checksum
Read EEPROM Bank-2
B2
Address
XX
checksum
Read EEPROM Bank-3
B3
Address
XX
checksum
Read EEPROM Bank-4
B4
Address
XX
checksum
Read EEPROM Bank-5
B5
Address
XX
checksum
Read EEPROM Bank-6
B6
Address
XX
checksum
Read EEPROM Bank-7
B7
Address
XX
checksum
Write EEPROM Bank-0
B8
Address
Data
checksum
Write EEPROM Bank-1
B9
Address
Datachecksum
Write EEPROM Bank-2
BA
Address
Data
checksum
Write EEPROM Bank-3
BB
Address
Data
checksum
Write EEPROM Bank-4
BC
Address
Data
checksum
Write EEPROM Bank-5
BD
Address
Data
checksum
Write EEPROM Bank-6
BE
Address
Data
checksum
Write EEPROM Bank-7
BF
Address
Data
checksum
Note A: Byte4(Checksum) = Byte1 + Byte2 + Byte3
Note B: Data = The value write to MCU
Note C: XX = don't care, any value(<=0xFF).
Note D: The Byte-2 definition of “Change Language Setting” is as below,
0=DE, 1=EN, 2=ES, 3=FR, 4=IT, 5=JA, 6=繁中, 7=簡中
When PC Host sends 0x7D command to MCU, MCU must return as following (2 bytes)
Return Code
R-Byte1
R-Byte2
Checksum error code
FC
AA
Normal return code
the above Byte3
(/data) FC
If normal return code is exact FCh
FC
CF
The Table is for alignment machine to read data from EEPROM to check if the alignment process and
write data are correct.
Q7T3-FP737S Dual function LCD Monitor Service Guide
Alignment Procedure
5 Confidential
Read EEPROM Contrast
A3
92
XX
checksum
Read EEPROM Brightness
A3
93
XX
checksum
Read EEPROM C/T Point
A3
94
XX
checksum
Read EEPROM OSD-Hpos
A3
95
XX
checksum
Read EEPROM OSD-Vpos
A3
96
XX
checksum
Read EEPROM Language
A3
97
XX
checksum
Read EEPROM OSD Timer
A3
98
XX
checksum
Read EEPROM Volume
A3
99
XX
checksum
Additional define for OEM model, for reference only.
Write sRGB Contrast
CA
53
Data
checksum
Write sRGB Brightness
CA
54
Data
checksum
Write Serial number byte 0~9
AA
0~9
XX
checksum
Read Serial number byte 0~9
A3
0~9
XX
checksum
Table 1.
Incoming display mode (Input timing)
Resolution Horizontal
Frequency
(KHz)
Vertical
Frequency
(Hz)
Dot Clock
Frequency
(MHz)
Remark
*720x400 31.47(N)
70.08(P)
28.32
DOS
*800x600 46.86(P)
75.00(P)
49.50
VESA
*1024x768 48.36(N)
60.00(N)
65.00
VESA
*1024x768 60.02(P)
75.00(P)
78.75
VESA
*1152x870 68.68(N)
75.06(N)
100.00
*1152x900 71.81(N)
76.14(N)
108.00*1280x1024 80.00(P)
75.00(P)
135.00
VESA
*1280x1024 81.18(N)
76.16(N)
135.09
SUN
Q7T3-FP737S Dual function LCD Monitor Service Guide
Alignment Procedure
6 Confidential
2. Dressing
A. Check the 4 springs and 5 spacers on the BKT
B. Connect 2 with 1 then connect to connector 3
Q7T3-FP737S Dual function LCD Monitor Service Guide
Alignment Procedure
7 Confidential
C. Fix DVI BD with spacers
D. Place I/F BD and SPS BD in the BKT
Q7T3-FP737S Dual function LCD Monitor Service Guide
Alignment Procedure
8 Confidential
Q7T3-FP737S Dual function LCD Monitor Service Guide
Alignment Procedure
9 Confidential
F. Plastic fixture on the interface board and place D-sub cover
G. Screw D-SUB cover on the BKT:
Q7T3-FP737S Dual function LCD Monitor Service Guide
Alignment Procedure
10 Confidential
H. Two gaskets at the bottom of BKT
I. Taping LVDS FFC on the panel:
Q7T3-FP737S Dual function LCD Monitor Service Guide
Alignment Procedure
11 Confidential
J. Place BKT on the panel and fasten FFC with I/F BD
Q7T3-FP737S Dual function LCD Monitor Service Guide
Alignment Procedure
12 Confidential
L. Two screws on panel right side
Q7T3-FP737S Dual function LCD Monitor Service Guide
Alignment Procedure
13 Confidential
N. Paste aluminum tape on the backlight wire hole
O. Spring on control board and fix CTRL BD on BZL
Q7T3-FP737S Dual function LCD Monitor Service Guide
Alignment Procedure
14 Confidential
P. Contorl board 9pin wire dressing
Q. Screw up uppercase with 5 screw
Q7T3-FP737S Dual function LCD Monitor Service Guide
Alignment Procedure
15 Confidential
R. Screw column with uppercase with 2 screw
5 5 4 4 3 3 2 2 1 1 D D C C B B A A G+ B+ R+ RXC-RXC+ RX0-RX0+ RX1-RX1+ RX2-RX2+ DSUB_SDA 3.3V_M PC5V 3.3V_MCU 3.3V_MCU 3.3V_MCU 3.3V_MCU PC5V 3.3V_MCU PC5V_OFF RED+ VSYNC BLUE+ HSYNC RED-DSUB_SCL GREEN+ GREEN- BLUE-DVIPC5V DVISCL DVISDA A-detect D-detect DVIPC5V RX0-RX0+ RX1-RX1+ RX2-RX2+ RXC-RXC+ RXC-RXC+ RX0-RX0+ RX1-RX1+ RX2-RX2+ DVISCL DVISDA RX0M RX1P RX0P RX2P RXCP RX2M RX1M RXCM Title
Size Document Number R ev.
Date: Sheet o f Project Code Reviewed By Approved By Prepared By Model Name PCB P/N PCB Rev. Benq Corporation
OEM/ODM Model Name
99.L8372.000-C3-304-006 INTERFACE BOARD
1 6
ARSENIO LIU ARIES CHU
48.L8301.S72 S72 ANGEL HU <Size> Q7T3 99.L8372.001 0 Tuesday, December 23, 2003 <OEM/ODM> 10/9 '03 R1: 10K --> 2K. PC5V 3.3_MCU PC5V_OFF + - H + + L - + Don't care If both PC5V and 3.3_MCU exist:
PC5V_OFF should set "LOW" to prevent PC5V from entering the system.
When only PC5V exists:
PC5V_OFF should set "HIGH" to provide CPU power. Actually, in the initial state, NO PC5V_OFF, if VGA cable is connected, PC5V exists --> Q4 will ON. That will make 3.3_M = 3.3V.
DVIPC5VGND Q2 2N3906 3 2 1 C1 47P J R24 10K U1 AT24C02 A0 1 A1 2 A2 3 GND 4 VCC 8 WP 7 SCL 6 SDA 5 R4 75 C49 0.01U K D4 BZV55-C5V1 A K R14 100 R16 100 R107 10 TP2 TP86 TP92 DN11 BAV99 A J K C10 0.1U K C3 47P J TP12 DN7 BAV99 A J K R17 100 R103 10 TP87 R7 100 D9 BZV55-C5V1 A K TP93 R101 10 R9 4.7K DN3 BAV99 A J K TP94 DN4 BAV70LT1 2 3 1 R8 100 C4 47P J J101 2061106210 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 R108 10 TP6 D6 BZV55-C5V1 A K C48 0.01U K DN10 BAV99 A J K R6 100 R104 10 DN6 BAV99 A J K R10 2K R11 100 R1 2K TP95 TP88 DN2 BAV99 A J K R20 4.7K R2 75 D5 BZV55-C5V1 A K C5 47P J R3 75 D2 BZV55-C5V1 A K D1 3.3V 1 2 TP89 TP3 C75 0.1U K R105 10 TP96 DN9 BAV99 A J K TP9 TP7 C101 0.01U K DN5 BAV99 A J K DN1 BAV99 A J K J1 2024012015 1 7 2 8 3 9 4 10 5 11 12 13 14 15 6 16 17 R21 4.7K C6 47P J TP97 R5 47 TP90 TP10 C8 47P J TP98 Q3 2N3904 1 3 2 R22 47 R106 10 Q1 2N3906 3 2 1 R15 1K R18 10K DN12 BAV99 A J K C9 47P J TP91 DN8 BAV99 A J K TP1 R13 100 TP4 DN14 BAV99 A J K R23 47 D3 BZV55-C5V1 A K TP11 C2 47P J R102 10 D7 BZV55-C5V1 A K D8 BZV55-C5V1 A K R19 10K DN15 BAV99 A J K TP150
5 5 4 4 3 3 2 2 1 1 D D C C B B A A WRZ 3 CSZ 3 RDZ 3 3.3V_MCU +2.5V 3.3V_MCU 3.3V_MCU VDPLL VPLL VAD VDVI 3.3V_MCU VDPLL 3.3V_MCU VDVI VDVI VPLL VAD 3.3V_MCU +2.5V 3.3V_MCU GA1P GA1N GA2P GA2N GA3P GA3N BRT_ADJ AD0 AD1 AD2 AD3 BA1P BA1N BA2P BA2N BA3P BA3N TXO2-TXO2+ TXEC+ TXEC-RB1P RB1N RB2P RB2N RB3P RB3N GB1P GB1N GB2P GB2N GB3P GB3N 12M BB1P BB1N BB2P BB2N BB3P BB3N ESP OSP GPO0 GPO1 GPO2 GPO3 GPO4 CLKAN CLKBP CLKBN RX2P RX2M RX1P RX1M RX0P RX0M RXCP RXCM RA1P RED+ RED-GREEN+ RA1N RA2P RESET INT RA2N RA3P GREEN-BLUE+ BLUE-HSYNC VSYNC RA3N CLKAP Title
Size Document Number R ev.
Date: Sheet o f Project Code Reviewed By Approved By Prepared By Model Name PCB P/N PCB Rev.
Benq Corporation
OEM/ODM Model Name
99.L8372.000-C3-304-006 INTERFACE BOARD
2 6
ARSENIO LIU ARIES CHU 48.L8301.S72 S72 ANGEL HU <Size> Q7T3 99.L8372.001 0 Tuesday, December 23, 2003 <OEM/ODM>
BUStype=High: Direct DDR Bus BUStype=Low : 3-wire Bus
Current setting=Direct DDR Bus
** R28 & C33 are reserved for ESD
Add C45 for Diagonal noise. Also reverse L1 and C19. L1, L3 and L4 change to 0 ohm for power ripple reduction.
pin 68: NC (MST suggested), 10/14.
** R28 & C33 are reserved for ESD
C36 0.1U C16 0.1U + C45 22U 16V 1 2 R203 0 C31 0.1U + C54 4.7U 25V 1 2 R202 100 C12 0.1U R65 10K L4 220 OHM R25 390 F + C18 22U 16V 1 2 C32 0.1U C20 0.1U R26 4.7K C17 0.1U R201 1M C13 0.1U L3 220 OHM R28 30K C23 0.1U L2 220 OHM C11 0.1U C14 0.1U C34 4.7P C U2 MST8116B RIN0 63 GIN0 60 SOGIN0 61 BIN0 58 RIN0M 62 GIN0M 59 BIN0M 57 HSYNC0 37 VSYNC0 38 REXT 52 REFP 66 REFM 67 CSZ/ALE 69 SDA/WRZ 70 SCL/RDZ 71 HWRESETZ 32 INT 72 PWM0 73 PWM1 74 AVDD 55 AVDD_MPLL 35 AVDD_DVI 45 BYPASS 3 AVDD_DVI 51 VDDP 11 VDDP 21 VDDP 84 VDDP 94 VDDP 104 VDDP 114 VDDP 126 VDDC 18 VDDC 87 VDDC 97 VDDC 117 AVSS_DVI 39 AVSS 56 AVSS_MPLL 36 AVSS_LPLL 2 AVSS_PLL 54 AVSS_DVI 42 GNDP 10 GNDP 20 GNDP 85 GNDP 95 GNDP 115 GNDP 127 GNDC 19 GNDC 86 GNDC 96 GNDP 105 GNDC 116 XIN 33 XOUT 34 LVA2P/RA1P 108 LVA2M/RA1N 109 LVA1P/RA2P 110 LVA1MRA2N 111 LVA0P/RA3P 112 LVA0M/RA3N 113 GA1P 98 GA1N 99 GA2P 100 GA2N 101 LVA3p/GA3P 102 LVA3M/GA3N 103 BA1P 88 BA1N 89 BA2P 90 BA2N 91 BA3P 92 BA3N 93 NC/RB1P 16 NC/RB1N 17 NC/RB2P 22 NC/RB2N 23 NC/RB3P 24 NC/RB3N 25 NC/GB1P 8 NC/GB1N 9 NC/GB2P 12 NC/GB2N 13 NC/GB3P 14 NC/GB3N 15 LVB1P/NC/BB1P 124 LVB1M/NC/BB1N 125 LVB0P/NC/BB2P 128 LVB0M/NC/BB2N 1 NC/BB3P 4 NC/BB3N 5 LVB3P/CLKAP 118 LVB3M/CLKAN 119 LVBCKMP/NC/CLKBP 120 LVBCKP/NC/CLKBN 121 NC/ESP 75 OSP 76 AD1 77 AD2 78 GPO0 83 GPO1 82 GPO2 81 GPO3 80 GPO4 79 DDC1_CLK/GPO8 29 DDC1_DAT/GPO7 28 AVDD_PLL 53 AVDD 65 AVSS 64 AVSS_DVI 48 LVACKP/NC 106 LVACKM/NC 107 LVB2P/NC 122 LVB2M/NC 123 AVSS 68 R+ 40 R-41 G+ 43 G-44 B+ 46 B-47 CK+ 49 CK-50 AD0 30 AD3 31 BUS TYPE/NC 6 C28 0.1U R27 OPEN C33 0.1U C24 0.1U C35 4.7P C C15 0.1U C29 0.1U + C19 22U 16V 1 2 C27 0.1U Y1 14.318MHZ L1 220 OHM C30 0.1U
5 5 4 4 3 3 2 2 1 1 D D C C B B A A 3.3V_M S CL S DA S CL S DA DSUB_SDA WRZ 3.3V_M 3.3V_MCU +2.5V 3.3V_MCU 3.3V_MCU 3.3V_MCU 3.3V_MCU 3.3V_M 3.3V_M 3.3V_M 3.3V_M 3.3V_MCU 3.3V_MCU 3.3V_MCU +5V 3.3V_MCU 3.3V_M DSUB_SCL PC5V_OFF AD0 AD2 AD3 RDZ CSZ RESET AD1 INT INC DEC EXIT ENTER PW_SW A-detect PANEL_ON 12M BLT_ON I-KEY LED_ORG ENTER DEC EXIT PW_SW I-KEY INC BRT_ADJ BLT_ON MUTE VOLUME MUTE LED_GRN D-detect VOLUME LED_GRN LED_ORG Title
Size Document Number R e v .
D ate: Sheet o f Project Code Reviewed By Approved By Prepared By Model Name P CB P/N PCB Re v. Benq Corporation
OEM/ODM Model Name
99.L8372.000-C3-304-006 INTERFACE BOARD
3 6
ARSENIO LIU ARIES CHU 48.L8301.S72 S72 ANGEL HU <Size> Q7T3 99.L8372.001 0 Tuesday, December 23, 2003 <OEM/ODM> Delete:
Change PWR_OFF to VOL_ON_OFF on P6.2.
GMT VOL_ON_OFF MUTE 200ms 200ms R301要靠近MCU C301 要靠近Scaler C78 0.1U K C61 0.1U K L12 U4 AT24C04N-10SI-2.7 A0 1 A1 2 A2 3 GND 4 VCC 8 WP 7 SCL 6 SDA 5 R45 1K C42 100P 50V J R3051K C79 0.1U K R309 0 R308 1M L6 220 OHM L13 R88 4.7K TP26 C39 100P 50V J TP154 C76 0.1U K + C74 47U 25V 1 2 L5 Z30 L10 Y2 12MHZ C46 22P J R303 1k R0603 TP27 RN4 4.7K 1 23 4 8 76 5 CON1 2060091109 1 2 3 4 5 6 7 8 9 J4 2072060207 1 2 3 4 5 6 7 8 9 10 11 12 13 14 SOCKET P/N: 22.10079.044 U5 MTV312MV64 DA2/P5.2 1 DA1/P5.1 2 DA0/P5.0 3 VDD3 4 NC 5 NC 6 RST 7 VSS 10 X2 11 X1 12 ISDA/P3.4/T0 13 ISCL/P3.5/T1 14 STOUT/P4.2 15 P6.2/AD2/HLFHI 16 P1.0 17 P1.1 18 P3.2/INT0 19 P1.2 20 P1.3 21 P1.4 22 P1.5 23 P1.6 24 P1.7 25 P6.1/AD1 26 P6.0/AD0 27 HSDA/P3.1/Txd 28 HSCL/P3.0/Rxd 29 P6.4/DA10 30 P6.5/DA11 31 P6.6/DA12 32 DA6/P5.6 34 DA7/HCLAMP 35 VBLANK/P4.0 36 HBLANK/P4.1 37 DA9/HALFV 38 DA8/HLFHO 39 DA5/P5.5 40 DA4/P5.4 41 DA3/P5.3 42 HSYNC 43 VSYNC 44 P6.7/DA13 33 VDD 8 P6.3/AD3 9 R46 1K RN1 4.7K 1 23 4 8 76 5 RN6 4.7K 1 23 4 8 76 5 RN3 4.7K 1 2 3 4 8 7 6 5 C40 100P 50V J C302 100P 50V J TP28 L11 C80 0.1U K C47 22P J R302 1k R0603 R77 220 TP156 RN5 4.7K 12 3 4 87 6 5 TP151 TP29 L301 U6 G950T65U GND 2 VOUT 3 VIN 1 GND G1 C303 100P 50V J R76 220 TP30 TP153 Q6 2N3904 1 3 2 C301 0.1U K C77 0.1U K C60 0.1U K R30 4.7K R47 1K TP157 TP155 TP31 +C57 22U 25V 1 2 L302 R43 100 RN7 4.7K 1 2 34 8 7 65 C53 0.1U K RN2 4.7K 1 2 34 8 7 65 R31 4.7K C44 0.22U K R301 0 R44 1K TP152 Q7 2N3904 1 3 2 TP32 C43 0.1U K R3041K C52 0.1U K TP33 + C73 47U 25V 1 2 C41 100P 50V J C71 0.1U K R307 10K
5 5 4 4 3 3 2 2 1 1 D D C C B B A A TXEC+ TXE0+ TXO1- TXE2-TXOC+ TXE3+ 5V_PANEL TXE0-TXO0+ 5V_PANEL TXE3- TXO2-TXE1+ TXEC- TXOC-TXE2+ TXO0- TXE1-TXO2+ TXO1+ +5V +5V LCD_PW PANEL_ON CLKBN BB2P CLKAP RA1N RA1P TXO2-GA3N BB1P TXEC-TXEC+ TXO2+ CLKAN BB1N RA2N RA3P CLKBP GA3P RA3N RA2P BB2N Title
Size Document Number R e v.
Date: Sheet o f Project Code Reviewed By Approved By Prepared By Model Name PCB P/N PCB Rev.
Benq Corporation
OEM/ODM Model Name
99.L8372.000-C3-304-006 INTERFACE BOARD
4 6
ARSENIO LIU ARIES CHU 48.L8301.S72 S72 ANGEL HU <Size> Q7T3 99.L8372.001 0 Tuesday, December 23, 2003 <OEM/ODM> G(1) S(2) D(3) TP60 TP54 C401 0.1U K TP64 TP45 C69 0.1U K TP61 TP46 TP62 TP55 +C68 22U 25V 1 2 TP56 R57 100K TP49 TP50 TP43 Q4 AO3401 D G S R61 20K TP44 TP57 J5 20K2085030 1 1 2 2 3 3 4 4 5 5 6 6 7 7 8 8 9 9 10 10 11 11 12 12 13 13 14 14 15 15 16 16 17 17 18 18 19 19 20 20 G1 G1 G2 G2 21 21 22 22 23 23 24 24 25 25 26 26 27 27 28 28 29 29 30 30 TP58 Q5 2N3904 1 3 2 TP52 TP51 TP59 TP47 TP63 TP48 TP53
5 5 4 4 3 3 2 2 1 1 D D C C B B A A Title
Size Document Number R e v .
Date: Sheet o f Project Code Reviewed By Approved By Prepared By Model Name PCB P/N PCB Rev.
Benq Corporation
OEM/ODM Model Name
99.L8372.000-C3-304-006 INTERFACE BOARD
5 6
ARSENIO LIU ARIES CHU
48.L8301.S72 S72 ANGEL HU <Size> Q7T3 99.L8372.001 0 Tuesday, December 23, 2003 <OEM/ODM> Optical Points Screw Holes H1 HOLE-V8 1 2 3 4 5 6 7 8 9 OP OP5 OP OP8 OP OP11 OP OP4 OP OP7 OP OP6 H3 HOLE-V8 1 2 3 4 5 6 7 8 9 OP OP10 OP OP1 H2 HOLE-V8 1 2 3 4 5 6 7 8 9 OP OP14 H4 HOLE-V8 1 2 3 4 5 6 7 8 9 OP OP2 OP OP3 OP OP13 OP OP12 OP OP9
5 5 4 4 3 3 2 2 1 1 D D C C B B A A OSP BB3N GB2N GB1P GB2P BB1P GB1N BB1N BB2N B0N B2N B0P BB3P B1N GB3N B2P GB3P BB2P B1P BG1P BR0N RB2P BR2P BG2P RB3P BR2N RB1N BR1N BG2N BG0P RB1P BG0N BR0P BG1N RB2N RB3N BR1P FG2P FR 2N FB0P FR 1N FR 0N FB2P FB2N FG2N FR1P FR2P FB0N FB1N FB1P GA3N FR0P FG1P FG1N BA1P BA2P GA3P GA1N BA3N FG0N FG0P RA1P GA2P RA2N BA2N GA2N RA2P GA1P BA1N BA3P RA3P RA1N RA3N POL OE ESP LP CLKV STV LCD_PW OSP ESP BB3N RB1N BB3P RB1P BB2N GB3N BB2P RB3P GB3P BB1N GB1N RB3N GB2N GB1P BB1P GB2P RB2N RB2P RA2N RA3P RA2P BA3N GA3N RA1N BA3P GA3P RA1P GA2N BA2N BA2P RA3N GA2P GA1P GA1N BA1N BA1P GPO1 GPO0 GPO3 GPO2 GPO4 CLKAN CLKAP CLKBN CLKBP Title
Size Document Number R ev.
Date: Sheet o f Project Code Reviewed By Approved By Prepared By Model Name PCB P/N PCB Rev.
Benq Corporation
OEM/ODM Model Name
99.L8372.000-C3-304-006 INTERFACE BOARD
6 6
ARSENIO LIU ARIES CHU 48.L8301.S72 S72 ANGEL HU <Size> Q7T3 99.L8372.001 0 Tuesday, December 23, 2003 <OEM/ODM> TP114 TP110 TP145 TP135 TP127 TP120 TP121 TP101 TP137 TP141 TP102 TP116 TP138 TP132 TP129 TP107 TP112 J7 20K2167050 G1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 1 G2 TP136 RN8 22 1 2 3 4 8 7 6 5 TP105 TP146 TP123 TP149 TP111 TP126 TP139 TP144 TP133 TP143 TP106 TP124 TP125 TP128 TP119 TP131 TP140 TP104 RN9 22 1 2 3 4 8 7 6 5 TP148 TP113 TP118 TP117 TP100 TP109 TP115 TP147 TP122 J6 20K2167030 30 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 G2 G1 1 TP142 C602 0.1U K TP99 TP130 TP103 TP108
Q7T3(CPT panel) LCD Monitor Service Guide
Trouble Shooting
1
Q7T3-CPT TROUBLE SHOOTING GUIDE
1.No Display or display is unstable
No picture or picture unstable
Power off Yes Turn on power No
Does cable plugs in No Check all of wire then turn on power connector? switch again.
Yes
Does power stable? No Check Power BD Yes
Is LED light green/orange? No Check control BD Yes
Is LED status normal? No Check Flash Rom or replace it Yes
Does crystal work correctly? No Check crystal CKT or replace it Yes
Is interface BD normally? No Replace interface BD Yes
Q7T3(CPT panel) LCD Monitor Service Guide
Trouble Shooting
2
2. BUTTON function:
OSD is not working Yes
Is control BD connecting? No Plug control BD then retry
Yes
Is bottom switch normally? Yes Replace control BD then retry
No Replace Control BD Is OSD working?? No Check Interface BD
3. OSD function:
OSD doesn’t work
Is control BD working? No Replace control BD
Q7T3(CPT panel) LCD Monitor Service Guide
Trouble Shooting
3
4. Power Board
Backlight didn't shine
LED shined?
3.3V existed? IS I/F board connected?
IC751 PIN 9 IS 15V? Replace Q761 PWM existed? (BLT_ADJ) Plug CN701 again or checking I/F BD
Turn on level existed? (BLT_ON)
Insert them again Check CN752, CN753was pluged properly? Plug CN601 again or
checking PW BD
Replace IC751,Q751
Replace new fuse Replace new fuse
Check IC701 OK?
Checking F601 Broke? Check IC601 Vcc existed? Replace IC602, IC702,D702 or check I/F BD Replace IC701
Replace new fuse
Replace IC601,ZD601,C606, C611 Y N N N N Y Y Y Y N Y Y N N Y Y Y N N N
Q7T3(CPT panel) LCD Monitor Service Guide
Engineering Specification
1 Table of Contents1. Introduction
...4
2. Operational Specification
...5
2.1 Environment...5
2.1.1 Temperature... 5 2.1.2 Relative Humidity... 5 2.1.3 Altitude... 52.2 Transportation ...5
2.2.1 Vibration Test (Package, Non-Operating)... 5
2.2.2 Drop Test (Package, Non-Operating)... 6
2.2.3 Vibration Test (Unpackaged, Non-Operating)... 7
2.2.4 HALF-SINE SHOCK... 7
2.3 Packing Configuration ...7
2.3.1 Container Specification... 7
2.3.2 Carton Specification... 8
2.3.3 Pallet Specification... 8
2.3.4 Container Carrying Capacity... 8
2.4 Electrostatic Discharge Requirements...9
2.5 Safety Requirements...9
2.6 EMI Requirements ...9
2.7 Reliability...9
2.8 Mechanical Design for TCO 99: ...9
2.9 Environment Protection Design: ...10
2.10 Acoustical Noise ...10
3. Input / Output Signal Specification
...10
3.1 Input Signal Requirements ...10
3.1.1 Signal cable (Directly attached to unit)... 10
3.1.2 Video signals:... 10
3.1.3 Sync signal:... 10
3.2 Function ...11
3.2.1 Support timing... 11
3.3 Number of display colors: ...12
3.4 Adjustment function ...12
3.5 Power Supply Requirements...12
3.5.1 Input Power Requirements... 12
Q7T3(CPT panel) LCD Monitor Service Guide
Engineering Specification
2 Table of Contents 3.5.3 Power Management... 133.6 Specification of Inverter...13
3.7 Panel optical Characteristics ...14
4. Functional specification
...16
4.1 Display Quality...16
4.1.1 Display Data Area (with full white pattern)... 16
4.1.2 Video Performance... 16
4.1.3 Light Output... 16
4.1.4 Brightness Adjustment Range... 16
5. Physical Specifications
...17
5.1 Physical Dimension & Appearance ...17
5.1.1 Overall Dimensions:... 17
5.1.2 Outer Appearance:... 17
5.2 Construction and Materials on outer surface ...17
5.3 Base ...17
5.4 Marking & Labels...17
5.4.1 Reference Label (Rear panel)... 17
5.4.2 Controls & Connectors... 17
5.5 Packaging...17
5.5.1 Carton Dimension:... 17
5.5.2 Shipping Weight:... 17
5.5.3 Shipping Container:... 17
6. Maintainability Specifications
...17
6.1 General & Requirements ...17
6.1.1 Installation:... 17
6.1.2 Periodic Maintenance:... 17
6.1.3 Repair & Calibration:... 17
6.2 Mean Time to Repair...17
6.2.1 Module Level:... 17
6.2.2 Component Level:... 17
6.3 Accessibility ...17
6.3.1 General:... 17
6.3.2 Outside Cabinet, access to the following elements... 18
6.3.3 Cover Removal, Access... 18
6.4 Equipment & Tools Required...18
6.4.1 Standard Test Equipment... 18
Q7T3(CPT panel) LCD Monitor Service Guide
Engineering Specification
3
Table of Contents
6.5 Electrical Emission and Energy Saving summary for TCO99 ...18
6.5.1 Electrical Field(AC):... 18
6.5.2 Magnetic Field(AC):... 18
6.5.3 Energy Saving:... 18
Appendix 1 – Shipment Conditions...18
Fig. 1 Physical Dimension Front View and Side view ...19
Q7T3(CPT panel) LCD Monitor Service Guide
Engineering Specification
4
1. Introduction
This specification describes a 17.0” color TFT LCD monitor which is supported by analog interface solution and support maximum resolution 1280x1024 at 76 Hz refresh rate. It has the following features:
- User controls:
(a) “Power on/off” switch.
(b) “Exit” key( Back to main menus or leave OSD menu).
(c) “I-key”( For auto adjust vertical position, phase, horizontal position and pixel clock ). (d) “Enter” key(For enter sub-menus or select items. And hot key lock / unlock mode). (e) “Left” key (Select left, decreasing adjust and hot key of Contrast mode).
(f) “Right” key (Select right, increasing adjust and hot key of Brightness mode). - OSD window for control and information display with 8 languages selection. - DPMS (Display Power Management System)
- Power on/off indicator.
- High quality advanced zoom function (Scaling function) - Tilt base : Attached base with 0~25 degree tilt.
-DDC2B function supported.
- A LCD monitor (a)Head part:
(1) A LCD module(CPT 170EA03). (2) An AC power and inverter board. (3) An Interface board.
(4) A control board.
(5) A 15pin D-sub connector .
(b) Base part:
(1) Tilt base. (2)Foldable
- A power cord
- An user menu.
-Setup disk. (including .INF/.ICM/Test pattern) --all INF/ICM/Test pattern are loaded in CD manual + Quick start guide
Q7T3(CPT panel) LCD Monitor Service Guide
Engineering Specification
52. Operational Specification
2.1 Environment
2.1.1 Temperature -Operating 0 to 40 oC -Storage -20 to 60 oC 2.1.2 Relative Humidity-Operating 10 to 90% Max. ( non-condensing) -Storage 10 to 95% Max. ( non-condensing)
2.1.3 Altitude
-Operating 0 to 3,048m (10,000ft)
-Storage 0 to 12,192m (40,000ft)
2.2 Transportation
2.2.1 Vibration Test (Package, Non-Operating)
A) Sine-wave vibration for initial resonance sweeps and dwell * Sine sweep
Frequency (Hz) Status 5 ~ 26.6 0.6G 26.6 ~ 50 0.016" 50 ~ 500 1.5G
Sweep times: 1 sweep / Per Axis (X,Y, and Z Axis ) * One major resonance dwell is required for each axis. Total dwell time at each resonance point shall be 15 minutes.
B) Random Vibration
Frequency (Hz) Slope ( dB/Oct.) Spectrum Level (g2/Hz)
5
~
100 0 0.015100
~
200 -6 ---200 --- 0.0038 Equivalent to 1.47 G rms
* Duration: 30 Minutes / Per Axis (X,Y, and Z Axis ) Total test time : 90 Minutes
Q7T3(CPT panel) LCD Monitor Service Guide
Engineering Specification
6
2.2.2 Drop Test (Package, Non-Operating)
A) Drop Height
Weight ( Kg )
ACM Spec.
Height (cm)
0 – 9
91
> 9 - 18.2
76
> 18.2 - 27.2
61
> 27.2 - 45.4
46
> 45.4 - 68.1
31
> 68.1 – 113.5
26
Upgrade one level of height before MP. B) Drop Sequence 2 1 5 3 4 6 Surface 2. Front 3. Bottom 4. Rear 5. Right 6. Left 1. Top Manufacturing joint -Corner 5-3-2 select at weakness side [the low left(or right) corner of the front panel]
-An edge drop with impact on the shortest edge radiating from corner 5-3-2 -An edge drop with impact on the next shortest edge radiating from corner 5-3-2 -An edge drop with impact on the longest edge radiating from corner 5-3-2 -A flat drop with impact on the rear
-A flat drop with impact on the front -A flat drop with impact on the right -A flat drop with impact on the left -A flat drop with impact on the bottom -A flat drop with impact on the top
Q7T3(CPT panel) LCD Monitor Service Guide
Engineering Specification
7
2.2.3 Vibration Test (Unpackaged, Non-Operating)
5~200Hz at 1.04g rms
FREQUENCY (Hz) SPECTRUM LEVEL (g2/Hz)
2.0 0.0185 4.0 0.0300 8.0 0.0300 40.0 0.0030 55.0 0.0100 70.0 0.0100 200.0 0.0010
DURATION: 15 MINUTES PER AXIS.
2.2.4 HALF-SINE SHOCK
Test conditions: Test unit : 2 sets
Each unit has to withstand 18 shocks.(3 shocks pre face) No- operation Half-sine wave Duration : 3ms Acceleration(G) : 75G
2.3 Packing Configuration
2.3.1 Container Specification a. Shipping ContainerContainer Type 20'*8'*8'6" Steel 40'*8'*8'6" Steel 40'*8'*9'6" High Cube Steel
Gross 24,000 30,480 30,480
Weight (Kegs) Tare 2,370 4,000 4,200
Payload 21,630 26,480 26,280
Length 5,898 12,031 12,031
Width 2,352 2,352 2,352
Interior Measurement (mm)
Height 2,394 2,394 2,699
Volume (Cubic Meter) 33.2 67.74 76.4
Width 2,340 2,340 2,340
Door opening (mm)
Height 2,280 2,280 2,585
Length 5,890 12,000 12,000
Width 2,330 2,330 2,330
Useable Interior Dimension (Deducted pallet (130mm
& Operating space 50mm) Height 2,100 2,100 2,405
b. Air Transport
Container (1) Container (2) Container (3) Container Type
125"*96"*96" 125"*96"*118" 125"*88"*64"
Q7T3(CPT panel) LCD Monitor Service Guide
Engineering Specification
8
Weight (Kegs) Tare 129 129 129
Payload 6,675 6,675 4,498 Length 3,048 3,048 3,048 Width 2,260 2,260 2,082 Interior Measurement (mm) Height 2,438 2,997 1,625
Volume (Cubic Meter) 17 19 11
2.3.2 Carton Specification
Product Net 4.2 Weight (Kegs) Gross 6.2
Length 368 Width 407 Carton Interior Measurement (mm) Height 140 Length 385 Width 445 Carton External Measurement (mm) Height 147 2.3.3 Pallet Specification a. Dimension
Transport Type Pallet A Pallet B Pallet C Pallet D
Length 770 770 1155 1155 Width 890 1335 890 1335 Shipping Pallet Dimension (mm) Height 115 115 115 115 Length X X X X Width X X X X
Air Transport Pallet Dimension (mm)
Height X X X X
2.3.4 Container Carrying Capacity
a. Shipping Container
Quantity of products
(sets) Quantity of Products (sets) Quantity of pallet (sets) Stowing Type
(Every container) (Every Pallet) (Every Container)
1050
Pallet A: 56 Pallet A: 6 20' Pallet B: 84 Pallet B: 6 Pallet C:84 Pallet C: 1 Pallet D:126 Pallet D: 1 40'2100
Pallet A: 56 Pallet A: 15 with pallet Pallet B: 84 Pallet B: 15Q7T3(CPT panel) LCD Monitor Service Guide
Engineering Specification
9
2.4 Electrostatic Discharge Requirements
The subject product must withstand 8 KV for contact discharge and 15 KV for air discharge of Electrostatic Discharge and meet the acceptance criteria as specified IEC 801-2 .
2.5 Safety Requirements
The display unit complies with the following safety standards and specifications.
-UL compliance....standard for information-processing and business equipment, UL 1950. -CSA compliance...standard C22.2 No. 950-M89, data processing equipment.
-TUV compliance...EN60950 safety specification-business equipment. -ISO13406-2 .Ergonomic Requirements of Visual Display.
-Demko...EN60950. -Nemko...EN60950. -Semko...EN60950. -Fimko...EN60950.
2.6 EMI Requirements
1. This display unit complies with the following EMC rules and regulations. -FCC compliance...FCC Rule, Part 15, Subpart B, Class B.
-VCCI compliance...VCCI Rule, Class-2. -CE Mark Compliance... 89/336/EEC. EN55024, EN61000-4-2/-3/-4/-5/-6/-8/-11 EN55022, Class B. EN61000-3-2,EN61000-3-3. -DNSF compliance...EN55022, Class B. -MPR2 compliance - TCO99 -C-Tick -BSMI -EPA
2. The sample for EMI agency approval should be under 4 dB of the limit. The production pilot run units should be under 3 dB of the limit. The mass production units should be under 1 dB of the limit.
2.7 Reliability
1.The prediction MTBF of display unit shall be greater than 60,000 hours excluding the lamp.(at 25 ℃) 2. Lamp life time : 40,000 hrs typical at which brightness of lamp is 50% compare to that of initial value at 7.0mA and 25℃.
2.8 Mechanical Design for TCO 99:
1) Front Frame Reflectance:* diffuse reflectance: > 20%
*
Gloss <= 30% gloss unit 2) Labeling of plastics:Plastic weight > 25g shall be marked in accordance with ISO11469 3) Variety of Plastic:
All plastic components that weight > 100g shall be made from the same type of plastic. 4) Painting of Plastic:
*Any plastic components that weight >100g shall not be painted lacquer or vanished, so that the paint, lacquer or vanish in dry matter exceed 1 weight-% of the plastic component.
* Mould decoration (IMD) is not allowed
Q7T3(CPT panel) LCD Monitor Service Guide
Engineering Specification
10 5) Metallization of Plastic Housing:
* Metallization is not allowed.
6) Plastic components > 25g shall not contain retardants of organically bound chloride or bromide.
2.9 Environment Protection Design:
Product is Per ES 715-c49 Environment Design Guide
2.10 Acoustical Noise
With the display operating, the issue of sound measured is contained within 40 dB/A in the audible field.
3. Input / Output Signal Specification
3.1 Input Signal Requirements
3.1.1 Signal cable (Directly attached to unit)
3.1.1.1 Video Inputs:
(1) DSUB –digital Signal Inputs
15pin D-sub connector is on the captive signal cable for IBM VGA, compatible graphic adapters. The pin assignment of this connector is described as below:
1 5 6 10 11 15
15pin D-sub female 1 RED VIDEO 2 GREEN VIDEO 3 BLUE VIDEO 4 GROUND 5 GROUND 6 RED GROUND 7 GREEN GROUND 8 BLUE GROUND 9 PC5V 10 SYNC GROUND 11 GROUND 12 SDA 13 H SYNC (H+V) 14 V SYNC 15 SCL 3.1.1.2 Cable length: 1600mm +/- 20mm 3.1.2 Video signals:
RGB separate, Analog 0.7Vp-p/75 Ohm
3.1.3 Sync signal:
- H/V separate, TTL level - H/V composite, TTL level
Q7T3(CPT panel) LCD Monitor Service Guide
Engineering Specification
11
3.2 Function
3.2.1 Support timing
This Interface board is designed to operate in any of the following video mode.
Incoming display mode (Input timing) Multi-scan operation
Resolution Frequency (KHz) Horizontal Frequency (Hz)Vertical Frequency (MHz)Dot Clock Remark Actual display resolution
640x350 31.47(P) 70.08(N) 25.17 DOS 1280x943 720x400 31.47(N) 70.08(P) 28.32 DOS 640x480 31.47(N) 60.00(N) 25.18 DOS 640x480 35.00(N) 67.00(N) 30.24 Macintosh 640x480 37.86(N) 72.80(N) 31.5 VESA 640x480 37.50(N) 75.00(N) 31.5 VESA 800x600 37.88(P) 60.32(P) 40.00 VESA 800x600 48.08(P) 72.19(P) 50.00 VESA 800x600 46.86(P) 75.00(P) 49.50 VESA 832X624 49.72(N) 74.55(N) 57.29 Macintosh 1024x768 48.36(N) 60.00(N) 65.00 VESA 1024x768 56.48(N) 70.10(N) 75.00 VESA 1024x768 60.02(P) 75.00(P) 78.75 VESA 1024X768 60.24(N) 74.93(N) 80.00 Macintosh 1152x864 67.50(P) 75.00(P) 108.00 VESA 1152x870 68.68(N) 75.06(N) 100.00 Macintosh 1152x900 61.80(N) 66.00(N) 94.50 SUN 66 1152x900 71.81(N) 76.14(N) 108.00 SUN 1280x1024 64.00(P) 60.00(P) 108.00 VESA 1280x1024 75.83(N) 71.53(N) 128.00 IBM1 1280x1024 80.00(P) 75.00(P) 135.00 VESA 1280x1024 81.18(N) 76.16(N) 135.09 SPARC2 full screen 1280x1024
Q7T3(CPT panel) LCD Monitor Service Guide
Engineering Specification
12
Notes：
(1) If the incoming display mode is not supported by this I/F board listed above, the picture can show up or doesn’t which is unpredictable, even the picture can display but probably isn’t good or clear.
(2) Some signals from graphics board may not function properly.
(3) “P”, “N” stands for “Positive”, “Negative” polarity of incoming HSYNC/VSYNC(input timing). (4) OSD will show “No Signal” message on the screen as below to indicate it while no display mode inputs. (5) OSD will show “Out of Range” message on the screen to indicate it while input display mode meet the
following condition
(a) The resolution is large than 1280x1024.
(b) The resolution is 1280x1024 but it frequency of vertical sync (Fv) is large than 77Hz. (c) The frequency of horizontal sync (Fh) is large than 82KHz.
(d) The frequency of vertical sync (Fv) is large than 76Hz.
3.3 Number of display colors:
16M color numbers (With Dithering)3.4 Adjustment function
Brightness Contrast
Display position (Vertical , Horizontal) Phase
Pixel clock
Color gain(Red, Green, Blue) OSD position (Vertical , Horizontal) Multi-language selection
OSD time
Recall function(Position Recall、Color Recall、Recall All)
3.5 Power Supply Requirements
3.5.1 Input Power Requirements
(1) Input Voltage Range
The unit shall meet all the operating requirements with an input voltage range of 90~264 Vac .
(2) Input Current
Maximum Input Current Measuring Range (MAX) 2 Arms 90Vac 〜 264Vac
(3) Frequency Range
The unit shall operate within a frequency range of 47Hz to 63Hz. (4) Inrush Current
Power supply inrush current shall be less than the ratings of its critical components(including Power switch, fuse, rectifiers and surge limiting device) for all conditions of line voltage.
(5) Regulator Efficiency
70% minimum (measuring at 115Vac and full load) Power saving mode ＜ 1 Watts
Q7T3(CPT panel) LCD Monitor Service Guide
Engineering Specification
13
3.5.2 Output Power Requirement
The power circuit shall supply DC power outputs as followings: Output Nominal Regulation Load Current Range 1 12V-panel ±10% 0 ~ 0.25A
2 3.3V-panel ±10% 0 ~ 0.1A 3 3.3V-Fix ±5% 0 ~ 1.0A
3.5.3 Power Management
Mode H/Vsync Power consumption LED Color
(Status)
Recovery Time
Normal Both exist < 40W Green
(Normal) --
off None or
Only one exist < 1W Amber 5 sec
3.6 Specification of Inverter
The backlight system is an edge-lighting type with 4 CCFLs (Cold Cathode Fluorescent Tube). The characters of dual lamps are shown in the following tables.
ITEM SYMBOL MIN TYP MAX Unit Condition
Lamp Voltage
VL -- 710 -- V IL=7.0 mALamp Current
IL
10 14 16 mA Each connector Inverter Frequency FL 45 50 70 kHz-- 1350 V Tb=0 oC
Starting lamp voltage VS
-- 1080 V Ta=25oC
Lamp life time LT -- (40,000) 50,000 -- Hr
IL = 6.0mA Continuous Operation (IL=7.0 mA)
NOTE: 1.All condition are at 25C ambient unless otherwise specified. 2. Load Panel=SXGA 17”
Q7T3(CPT panel) LCD Monitor Service Guide
Engineering Specification
14
3.7 Panel optical Characteristics
Item Condition Symbol Min. Typ. Max. Unit
Contrast Ratio ψ=0°,θ=0° CR 360 450 -- -- Vertical Up Down ψ=0° (CR>=10) ψ=0° (CR>=10) θ θ -55~55 -55~55 -65~65 -65~65 -- -- Deg. Deg. Viewing Angle Horizontal Left Right θ=0° (CR>=10) θ=0° (CR>=10) ψ ψ -60~60 -60~60 -70~70 -70~70 -- - Deg. Deg. 25±2.5° ψ=0°,θ=0° Tr Tf -- -- -- -- 16 9 -- -- ms ms Response Time Rise Time Fall Time Cross Talk ψ=0°,θ=0° Tr+Tf -- -- 25 -- ms
White Luminance Center point at CCFL 7.0mA -- 240 300 -- cd/m²
Brightness Uniformity θ=ψ=0° -- 70 -- -- % Crosstalk θ=ψ=0° CMR -- -- 1 % Chromaticity Red x y Green x y Blue x y White x y ψ=0°,θ=0° 0.607 0.314 0.280 0.552 0.113 0.070 0.283 0.299 0.637 0.344 0.310 0.582 0.143 0.100 0.313 0.329 0.667 0.374 0.340 0.612 0.173 0.130 0.343 0.359 -- Note：
1. Viewing Angle, Contrast Ratio, Response Time, Reflectance, and Chromaticity are measured at panel center. 2. Viewing Angle（θ, ψ）
See figure below
Measurement is done on position 1.
Viewing angle origine is the axis normal to the flat panel. Left (L) and Right (R) value are the maximum angles for which CR=10. Up (U) and (D) value are the maximum angles for which CR=10.
Normal E
y
È
Öx
Ö = 0 , Right
Ö = 90 , Up
Ö = 180 , Left
Ö = 270 , Down
Q7T3(CPT panel) LCD Monitor Service Guide
Engineering Specification
15 3.Contrast Ratio (CR) is defined mathematically as:
) 0 φ , 0 θ (at (Min.) el Black Lev in Luminance (Max.) Level White in Luminance o o = = 4. Response time
TrR measures the transition time of L1 relative luminance from white to black state, from 90% to 10% (see graph below) TrD measures the transition time of L1 relative luminance from black to white state, from 10% to 90% (see graph below)
5. Cross talk shall be measured between two patterns.
FULL WHITE 184 gray level 0 gray level 1/2 1/6 2/3 1/2 1/3 1/6 1/6 1/3 1/2 2/3 A A' B B' 184 gray level
l LA-LA’ l / LA x 100%= 1.2% max., LA and LB are brightness at location A and B
l LB-LB’ l / LB x 100%= 1.2% max., LA’ and LB’ are brightness at location A’ and B’
LA：Luminance of measured point in A (cd/m2) LB：Luminance of measured point in B (cd/m2) LA’：Luminance of measured point in A’ (cd/m2) LB’：Luminance of measured point in B’ (cd/m2) (at Viewing Angle o
0 φ 0 θ= o , = ) 100% 90% TrR TrD WHITE BLACK 10% 0% t WHITE
Q7T3(CPT panel) LCD Monitor Service Guide
Engineering Specification
16 6. Brightness Uniformity of these 9 points is defined as below:
5 1 10% 90% 50% 90% 50% 10% 2 4 3 6 7 8 9
Brightness Uniformity = Min. brightness / Max. brightness x 100 % > 70%
4. Functional specification
All the tests to verify specifications in this section must be performed under the following standard conditions unless otherwise noted. The standard conditions are:
-Temperature : 0 to 40 degree Celsius
-AC line input voltage : 90 Vac to 264 Vac, 47Hz or 63Hz -Warm-up time : 30 minutes minimum
4.1 Display Quality
4.1.1 Display Data Area (with full white pattern)
(1) Horizontal: 337.920 mm (2) Vertical: 270.336 mm
4.1.2 Video Performance
(1) Resolution : 1280 X 1024 pixels Maximum (2) Contrast ratio : 360(Min.), 450(Typ.)
(3) Response time : 25 mS(Typ.)
(4)Viewing angle : Up:65° Down:65° R/L:70° (At contrast ratio >= 10) (5)CIE Coordinate: White ( 0.313, 0.329 ) +/- (0.03, 0.03) (at user mode) (6) Display color: 18 bits color
4.1.3 Light Output
Brightness rating : 300cd/㎡(Typ.) @7.0mA
4.1.4 Brightness Adjustment Range
At contrast ratio control set at maximum level, adjusting Brightness control from minimum to maximum position, the light output of WHITE pattern shall be increased more than 40cd/㎡.
Q7T3(CPT panel) LCD Monitor Service Guide
Engineering Specification
17
5. Physical Specifications
5.1 Physical Dimension & Appearance
5.1.1 Overall Dimensions:
375mm (W) X 370mm (H) X 155mm (D)
5.1.2 Outer Appearance:
see Fig.1
5.2 Construction and Materials on outer surface
(1) Materials: Plastic(2) Color: To be defined for Model
5.3 Base
(1)Tilt: fiest hinge:0°~ 25° , second hinge : 25 °~135°
5.4 Marking & Labels
5.4.1 Reference Label (Rear panel)
(1) Reference numbers (2) Manufacture data (3) Agency Approvals (4) Power Ratings
5.4.2 Controls & Connectors
(1) AC power cord input: abbreviated labels (2) User's Controls: standard print
5.5 Packaging
5.5.1 Carton Dimension: 385mm (W) X455mm (D) X 1478mm (H) (LCD monitor) 5.5.2 Shipping Weight: 6.2kg (LCD monitor) 5.5.3 Shipping Container:2100
sets per 40 feet container with pallet.6. Maintainability Specifications
6.1 General & Requirements
6.1.1 Installation:
From outside of unit with standard tools and documentation provided to user.
6.1.2 Periodic Maintenance:
No periodic maintenance is required.
6.1.3 Repair & Calibration:
Require spare modules or components as specified as followings:
(1) Interface board ASSY (2) AC-DC converter board ASSY (3) Control board ASSY
6.2 Mean Time to Repair
6.2.1 Module Level:
Less than 10 minutes
6.2.2 Component Level:
Less than 15 minutes
6.3 Accessibility
6.3.1 General:
Q7T3(CPT panel) LCD Monitor Service Guide
Engineering Specification
18
6.3.2 Outside Cabinet, access to the following elements
-Operating Controls -AC Inlet
-Audio in
6.3.3 Cover Removal, Access
All sub assemblies and internally adjustable components may be accessed by removing the base and the rear cover .
6.4 Equipment & Tools Required
6.4.1 Standard Test Equipment
(1) Voltmeter
(2) Dual trace oscilloscope (3) Hand tools as required
(4) Computer with IBM VGA , or compatible graphic adapter
6.4.2 Documentation
A service manual will be available which covers all service requirements. A users manual written in Japanese German, Italian, Spanish, France and English will be available to ship with the product.
6.5 Electrical Emission and Energy Saving summary for TCO99
6.5.1 Electrical Field(AC):
*Band I< 10V/m (132cd/m^2,”+” pattern) *Band II< 1V/m (132cd/m^2,”+” pattern) Note: Shielded power cord is not acceptable
6.5.2 Magnetic Field(AC):
*Band I< 200nt (132cd/m^2,”+” pattern) *Band II< 32nt (132cd/m^2,”+” pattern)
Note: Shielded power cord is not acceptable
6.5.3 Energy Saving:
*1st stage:<15W(recover time:3 sec)
2nd stage:<5W
*single stage:<5W(recover time: 3sec)
Appendix 1 – Shipment Conditions
ITEM
State
Power OFF
Brightness 90
Contrast
50
OSD- Timeout
20s
OSD-Language English
OSD-Image size
Full Screen
Q7T3(CPT panel) LCD Monitor Service Guide
Engineering Specification
19
Fig. 1 Physical Dimension Front View and Side view
Q7T3 (CPT panel) LCD Monitor Service Guide
Circuit Operation Theory
1
I. Introduction:
The Q7T3-CPT is a 17” SXGA (1280x1024) , 26.2 K colors(R, G, B 6-bit data) TFT LCD monitor without multi-media function. It’s an analog interface LCD monitor with a 15 pins D-sub signal cable and it’s compliant with VESA specification to offer a smart power management and power saving function. It also offers OSD menu for users to control the adjustable items and get some information about this monitor, and the best function is to offer users an easy method to set all adjustable items well just by pressing one key, we called it “Auto key” which can auto adjusting all controlled items. Q7T3-CPT also offer DDC2 function to meet VESA standard.
II. Block diagram
The Q7T3-CPT consists of a head and a stand (base). The head consists of a LCD module with 4 lamps, a power board (include AC/DC, DC/DC and inverter board), a control board and interface BD. The block diagram is shown as below.
III. Circuit operation theory:
A.) HEAD:
Q7T3 (CPT panel) LCD Monitor Service Guide
Circuit Operation Theory
2
(a) Circuit operation theory:
A basic operation theory for this interface board is to convert analog signals of Red, Green, Blue. The scaling IC has internal A/D converter, internal OSD and auto detect input timing functions. A/D converter is convert analog signal to digital data. OSD is offering adjustable
functions to end-user. Detect timing is for detect change mode. Scalar finally output the digital
RGB data, the Hsync, Vsync and pixel clock to LCD panel driver IC by RSDS interface. MCU also embedded in PW133A controls system processing. EEPROM is stored DDC data, OSD common data and user mode data. Flash-Rom is stored the source code which is accessed by MCU to run program.
(b) IC introduction:
1.) DDC (Display Data Channel) function: We use DDC IC to support DDC/2B function. DDC data is stored in 24C02(EEPROM). Those data related to LCD monitor specification. PC can read them by “SDA” and “SCL” serial communication for I²C communication for DDC2B.
2.) PW133A IC : There are A/D, Scaling, OSD, MCU functions in the PW133A IC. Scaling IC is
revolutionary scaling engine, capable of expanding any source resolution to a highly uniform and sharp image, combined with the critically proven integrated 8 bit triple-ADC and patented Rapid-lock digital clock recovery system. It also support detect mode and DPMS control. MCU
Q7T3 (CPT panel) LCD Monitor Service Guide
Circuit Operation Theory
3
control unit, it controls all the functions of this interface board, just like the OSD display setting, the adjustable items, adjusted data storage, the external IIC communication, support DDC2B. 3.) EEPROM: We use 24C16 to store all the adjustable data and user settings.
4.) FLASH ROM: To stored the source code which is accessed by MCU to run program.
A-2.) Power board diagram:
Fig.1
#1 EMI Filter
This circuit (fig. 2) is designed to inhibit electrical and magnetic interference for meeting FCC,
VDE, VCCI standard requirements.
EMI Filter Rectifier and filter
Isolation power transformer
Rectifier and filter Audio Amp and Pre-Amp
PWM controller Switching element
Feedback Isolation
Inverter circuit
Rectifier and filter
Q7T3 (CPT panel) LCD Monitor Service Guide
Circuit Operation Theory
4
Fig. 2
#2 Rectifier and filter
AC Voltage (90-264V) is rectified and filtered by BD601, C605 (See Fig 3) and the DC Output
voltage is 1.4*(AC input). (See Fig.3)
Q7T3 (CPT panel) LCD Monitor Service Guide
Circuit Operation Theory
5
#3 Switching element and Isolation power transformer
When the Q601 turns on, energy is stored in the transformer. During Q601 turn-off period, the stored energy is delivered to the secondary of transformer. R607, C607 and D601 is a snubber circuit. R615 is current sense resistor to control output power. (See Fig.4)
Fig. 4
#4 Rectifier and filter
D701 and C703 are to produce DC output. L701 and C704 are to suppress high Frequency switching spikes. (See Fig.5)
Q7T3 (CPT panel) LCD Monitor Service Guide
Circuit Operation Theory
6
#5 PWM Controller
The PWM controller NCP1200A implements a standard current mode architecture. With an internal structure operating at a fixed 40KHz. Where the switch time is dictated by the peak current set-point. When the current set-point falls below a given value. The output power demand diminishes, the IC automatically enters the so-called skip cycle mode and provides excellent efficiency.
Fig. 6
#6 Feedback circuit
PC123 is a photo-coupler and TL431 is a shunt regulation. They are used to detect the output voltage change and be the primary and secondary isolation. When output voltage changes, the feedback voltage will be compared and duty cycle will be decided to control the correct output voltage. (See Fig.7)
Q7T3 (CPT panel) LCD Monitor Service Guide
Circuit Operation Theory
7
A-3.) Control board introduction:
The main parts of the control board are a push button, and a LED.
(a) Push button: It’s a simple switch function, pressing it for “ON” to do the auto adjustment function, releasing it for “OFF” to do nothing.
(c) LED: It indicates the DPMS status of this LCD monitor; green light means DPMS on (Normal operating condition). Amber light means DPMS off (Power off condition).
Q7T3 (CPT panel) LCD Monitor Service Guide
Circuit Operation Theory
8
A-4.) Inverter diagram:
1.
Block Diagram:
2. General Specification
Input Voltage: 15V
Input Current: 2A max.
ON/OFF Voltage: 3.3V
PWM Duty: 3.3V/47KHz
Output Requirement:
Max. Output Current: 15mA
Min. Output Current: 6mA
Lamp Working Voltage: 600Vrms
Open Lamp Voltage: 1700Vrms
Frequency: 50KHz
15Vin ON/OFF switching OSCILATOR CIRCUIT TRANSFORMER CCFL PWM CONTROLLER TL1451 CIRCUIT PROTECTION AND DETECT ON/OFF BRT_ADJQ7T3 (CPT panel) LCD Monitor Service Guide
Circuit Operation Theory
9
3.Circuit Operation Theorem
3.1 ON/OFF SWITCH
The turn-on voltage was controlled by R756 and R757.The inverter was turned on or off by the
switching transistors Q761 and Q757, Also regulator IC751 is control by Q761 and Q757 decide
supply 15V to inverter part or instead.
Q7T3 (CPT panel) LCD Monitor Service Guide
Circuit Operation Theory
10
3.2 PWM Control circuit
TL1451 is a dual PWM controller.C765 and R765 decide the working frequency.BLT_ADJ signal is
from control board, control pulse width then decide how much energy delivery to CCFL also decide
CCFL brightness. Q741 and Q742 be the buffer to rise the drive capability and the totem poles circuit
can improve a capable of driving for Q743.C770 decide the striking time delay.
Q7T3 (CPT panel) LCD Monitor Service Guide
Circuit Operation Theory
11
3.3 Oscillator Circuit
Royer circuit uses the characteristic of transformer saturation to oscillate. When the DC power inject,
Q759 or Q760 will turns on, and the current Ic increases. After a period, the transistor will leave the
saturation status and Vce increase. The result causes the voltage of primary coil get lower. Finally the
transistor turn off, and another transistor turn on. These statuses are repeated and the pin7 and pin8 of T751
will get a Sin Wave to turn on CCFL.
Product System (PS)
Subject: ASS'Y Drawing Part No.: 99.L8372.CBE Rev.: 0
Doc. No. 99.L8372.CBE-C3-328-001
Project Code: 99.L8372.001 Component Part. No.: Page 1 of 1
Model Name: Q7T3
Form No: ACM0-0B-003-24(010918)
1
Q7T3(CPT Panel)LCD Monitor Service Guide
Alignment Procedure
1
1.Alignment procedure (for function adjustment)
A. Preparation:
1. Setup input timing VGA_60Hz, Cross-Hatch ( General - I ) pattern.
2. The monitor power on at first time that will enter Factory OSD mode. (If not, Please press “Menu” and “Exit” plus “Power” buttons at the same time. A “Factory” word will be showed on the upper left hand side of OSD Main menu.) Burn in mode have already started. (See Fig 1.). If it hasn’t started, Please choose “BURN IN MODE” tag and select “On” to enable burn-in mode.(See Fig2a ,2b)
3. Setup unit and keep it warm up at least 20 minutes
B. Timing adjustment:
1. Enter factory setting area (if it isn’t at factory mode, Please press “Menu” and “Exit” plus “Power” buttons at the same time to enter factory mode.).
2. Select timing from Table 1. The timing marked with star sign (*) have to be adjusted. 3. Execute “Recall All” (press “Yes”) to clear user area in EEPROM
4. The cursor moves to “AUTO Adjust ” or press “I-Key” to run “AUTO adjustment” function.(After AUTO adjustment, Press “Exit key ” to exit “ AUTO Color Balance ” function.
6. Check the phase of the image; if phase is not perfect adjust it to the best condition. 7. Adjust the settings to following values:
CONTRAST = 50 BRIGHTNESS = 90 OSD TIME = 20 COLOR = sRGB
8. When Factory mode is disable (burn-in mode “off”) then power off after power on will enter user mode.
C. Color balance adjustment:
1. Setup input timing XGA_75Hz, 4 gray pattern.( chroma timing 307 , pattern 45)
2. Enter factory setting area (if it isn’t at factory mode, Please press “Menu” and “Exit” plus “Power” buttons at the same
time to enter factory mode.). 3. Setup the “Burn-in mode” is “On” 4. Select the color to user-preset mode.
5. At Main menu move cursor to “AUTO Adjust ” tag then press the “ENTER” or “I-Key” to run “ AUTO Adjust ” function, then press “ RIGHT Key ” to run “ Auto Color Balance ” function .
6. Checking if the picture is no good, reject this monitor.
D. Color adjustment:
1. Setup input timing VGA_60Hz, white pattern.
2. Enter factory setting area (if it isn’t at factory mode, Please press “Menu” and “Exit” plus “Power” buttons at the same
time to enter factory mode.).
3. Move cursor into “BUR-IN MODE” tag and select “On” to enable burn-in mode. (If it wants to do “Auto Color balance”, pleaseselect the color to user-preset mode.)
4. Measure color temperature by Minolta CA-110 (or equivalent equipment).
If the default value can’t meet color temperature spec. Please use Auto Alignment to calibrate the color temperature; Bluish, & Reddish and sRGB. The color temperature specification as follows:
