IMPORTANT h Although every effort has been made to

(1)

IMPORTANT

NOTE Although every effort has been made to

_m

h

as possible, Southwest Techni tion reserves the _right to rev’

(2)

SWTPC MODIFICATION

--APPLICATION NOTICE AN #120

Product: DMAF2

_QUME

DT-8 Disk Drives Date:

_July

_16,

1980 G.K.

Unpacking

and

_Packing

_Qume

_DT-8

Disk Drives

When

_unpacking

_your

_Qume

_DT-8 _disk

_drives,

it is very

important

that _you save all of the disk drive

_packing

materials. These materials

include the cardboard insert to

_protect

the disk drive

_head,

the

styrafoam

block which holds the door

_closed,

the

_plastic

_bag

dust _cover,

the inner cardboard

_container,

the foam

_packing

inserts and the

_shipping

container. These materials must be used to

_repack

the drive should it ever be _necessary to

_reship

the drive or return the drive to the

_factory

for service.

_Packing

the drive in a container other than the one

supplied

or not

_properly

_preparing

the drive for

_shipment

can result in

costly

damage

to the drive

_and/or

the drive head. Neither

_SWTPC,

the

drive

_{manufacturer,}

or the carrier will be

_responsible

for such

_damage.

To

_repack

a

_Qume

_DT-8 _disk _drive _for

_shipment,

_first

unplug

the

DMAF2 chassis from the AC wall

_receptacle.

Disconnect all cables

attaching

to the disk drive. Remove the four screws

_holding

the disk

drive to the chassis and

_carefully

remove the drive.

Open

the disk drive door and

_carefully

insert the cardboard disk head

_protector

so tab on the

_protector

is

_fully

inserted into the drive.

Now

_carefully

close the door. Set the

_styrafoam

block

_against

the _upper

back side of the

drive's

front

_panel

_and

_tape

it in

_place.

This block

prevents

the door from

_being

_opened

once the drive is

_placed

inside the inner cardboard container.

_Carefully

_place

the drive inside the

_plastic

bag

dust cover and secure with

_tape.

Now slide the back side of the drive into the inner cardboard container until

_only

the front

_panel

of the disk drive is

_exposed.

Make sure that _you have a foam insert

_properly

_positioned

in the bottom of the

_shipping

_container.

_Carefully

_set _in _the

_packed

_drive

oriented so the drive has its bottom side down. Now

_place

the

_remaining

foam insert on the

_top

of the drive

_assembly.

If the disk drive is

_being

returned for

_factory

_service,

be sure to

include documentation

_describing

the

_problem

with the drive and if

possible,

documention

_confirming

the date of

_purchase.

Drives returned

to SWTPC should be addressed as follows:

Southwest Technical Products

_Corp.

Atten: Service

_Dept.--

_Digital

_Group

219 W.

_Rhapsody

(3)

DMAF2

Floppy

Disk Unit

Introduction

___, The Southwest Technical Products

Corporation

DMAF2 is a dual

drive,

Single

and

double

_density,

double sided

_eight-inch

disk unit. The DMAF2

is

_designed

to

_operate

with the SWTPC SS-50 bus

_computer

_systems.

Although

the DMAF2 jis

_designed

to

_operate

with two

_drives,

_up to four

drives _may be used with a

_special

_daisy

_chained

_{interconnection}

_cable.

Although

the DMAF2 Disk Unit was

_completely

_assembled _and _tested _at

the

_factory,

_slight

_{reprogramming}

_of _the _circuit _board

may be

_necessary

to

_operate

with _your

_particular

_computer

_system.

Also,

the disk drives

may need to be installed in the chassis. It is

_suggested

that this

instruction

manual be read

_completely

before

_attempting

to use the

system.

_Step-by-step

instructions

are

_given

for

_configuring

the unit for

your

particular

system

to

minimize

the

_possiblity

of errors.

Disk Drive

Installation

The two disk drives for the DMAF2 were

_probably

_shipped

in their

original

containers

rather than

_being

attached to the chassis.

Carefully

remove each drive from its

_shipping

container. One drive

should be

_clearly

marked with a 0 and the other with a 1. The drive

marked 0 should be installed in the

chassis

so that it is the left drive

(as

viewed from the

_front).

Before

_attaching

drive 0 to the

_chassis,

install the

_50-pin

ribbon cable connector to its mate on the drive as

shown in the DMAF2

_wiring

_pictorial.

Be sure the connector is installed

so that the side of the cable with the colored band is

_facing

toward the

drive motor as shown in the

_pictorial.

The drive marked 1 should have

an extra wire with a connector on the end

_attached

to the bottom circuit

board of the drive. When

_installing

this drive be sure the wire and

connector extends out from the back of the drive so that it _may be

connected to its _proper mate on the motor control board. Both drives

should be

_securely

fastened to the chassis

_using

the

#8

- 32 _screws

supplied.

Once the drives have been

fastened

to the chassis the _power and

control cables should be installed.

_Although

all connectors are indexed

and can

_only

_be

_installed

_one

way, the

step-by-step

procedure

should be

followed to avoid _any errors. The

_wiring

_pictorial

should be used to

aid in

_connecting

the cables.

(

)

Be sure that the DMAF2 is not connected to the _power line.

(

)

Connect the

_longer

of the two AC cables from the motor control

board to its

_respective

_socket on drive 0. Be sure the

_connector

seats

_firmly

in the socket.

(

)

Connect

the other AC cable to its socket on

_drive

1.

(

)

Connect

the

_longer

DC cable to its

_respective

socket on drive 1.

(4)

-1-This connector is indexed and can

_only

be

_installed

one _way.

(

)

Connect the

_remaining

DC cable to its socket on drive 0.

(

)

Connect the motor control cable to its

_respective

socket on the

motor control board. Be sure the connector is installed so that

the

_indexing

_pin

in the female

_portion

mates with the

_clipped

or

removed connector

_pin

on the board.

(

)

Install the

_50-pin

ribbon cable connector on drive 1 as_ shown in

the

_pictorial.

This connector should also be installed so that

the banded side of the ribbon cable is nearest the disk drive

motor.

(

)

Route the ribbon cable connector thru the slot

_along

the

top

edge

-of the rear

_panel

and install the cover

_using

the

#8

-32

black

screws

_supplied

with the unit.

Programming

the DMAF2 Controller Board

Before

_installing

the DMAF2 controller in _your

_computer

_system

the

jumper

options

on the board need to be set

_properly.

DO

NOT,

however,

change

the

_adjustment

of the three controls near the

_top

of the board.

These were

_pre-set

at the

_factory

and should

_only

be

_adjusted

_by

qualified

service

_personnel.

Jumper

changes

are

_accomplished

_by

moving

the small

_(probably

_blue)

_jumper

blocks which look like smajl

connectors. A

_complete

_description

of each

_jumper

_position

is

_given

in

_Jumpers

section of the

_computer

_system

documentation manual

(if

applicable).

In most cases the short table on

the

_following

_page may be used to

_configure

the board for your

(5)

DMAF2 Disk Unit

_Jumper

_Requirements

The

_following

tables show the

_jumper

_settings

to be used with the

DMAF2 double

_density

disk controller in various

_system

_{configurations.}

In addition to the DMAF2

_jumpers,

some

_changes

_may be

_required

to the

MP-09 _processor _board

_jumpers.

Table

1.1 -- DMAF2

Jumpers

DMAF

Jumper

"S$"

Systems

Non

_"S"

_Systems

_(69A,

_69K)

Halt/Bus

REQ

Bus

_Req

Bus

_Req

Upper/Lower

|

Lower Lower

BA

_/

_BA&BS

BA&BS BA&BS

IRQ/Norm

|

Norm*

Norm

2

MHz/1

MHz

tt tt

Precomp/Norm

_Precomp

MR/Norm

MR MR

56K/32K

56K 56K

Desel/Sel

Sel Desel

Address

Select.

4 4

|

Table 1.2 -- MP-09

Jumpers

6809 Jumper

"S"

Systems

Non

_"S"

_Systems

_(69A,

69K)

BA

/BA&BS

BA BA

110/BR

BR BR

28/3S

3S 2S

tt Set to

_System

Clock

*

(6)

Installing

Now that the DMAF2 controller board has been

_jumper

_programmed

correctly

it _may installed in the

_computer.

Most users should follow

the instructions

_given

in the

_system

documentation manual of the

computer.

For other users be sure that power to both the disk and the

computer

is off before

installing

the controller. Before installation

it is

_suggested

that all memory in the

system

be checked for _proper

operation.

SWTPC

_computer

systems

require

no

_special

modifications,

but

at least 20K of memory should be installed in the

computer.

The DMAF2

board should be installed in _any of the un-used

_50-pin

card

_positions

in

the

_computer.

The

_remaining

end of the

_50-pin

ribbon cable

_coming

from

the disk drives should now be connected to the 50

_pin

connector on

_{_}

the DMAF2 board. The cable connector is indexed and can

_only

be installed one _way.

This

_completes

the installation of the DMAF2 disk

_system.

The disk

may now be used as described in the

_Operating

Instructions section of

(7)

SWIPC DMAF2 Disk Unit

_Operating

Instructions

The DMAF2 Disk Unit is

_designed

to be as

_{straightforward}

and easy

to use as

_possible.

_The _{DMAF2 has}

only

one

_operator

_control on

_it--the

power switch. This switch is located on the rear of the chassis and is

easily

accessible to the user when used ‘in table

_top

_{configurations.}

When installed in a SWTPC

_desk,

it should be left in the ON

_position.

Power is then

_controlled

_by

_the _switch

_installed

_on _the _desk.

Loading

_Flexible

Disks

To

load a flexible

_disk,

_simply

depress

the

_pushbutton

_located

on

the center of the front

_panel.

The

_loading

handle is

_spring

loaded and

will then _expose the load

_aperture.

Insert

the

flexible

disk in the load

_aperture

with

the label toward

the

_operator

and

_facing

the

_loading

handle

(see

_figure).

Be sure that

the

_flexible

disk is

inserted

_fully

within

the drive.

EJECT =

BUTTON

Write

Protect

Option

Having

the write

_{protect notch}

on

a

diskette

closed

_with

a

_piece

of

tape

will

_allow

_the

_diskette

_to _{be written} _on.

Leaving

the notch _open

will disable write

privileges.

WRITE

-ENABLE

[oe

STICKER

OF

(8)

The LED's on the drives are drive

select/head

load

_lights

and are

activated

_only

when the head for a

_particular

drive is loaded on a

diskette.

_They

are not _power indicators.

The disk controller has been

_designed

to load the head and turn on the drive motors

_only

when _necessary. When the

_computer

_requests

data

from the

_disk,

both motors will activate and the correct head will load.

After the information has been retrieved the head will unload and both

motors will turn off

_{approximately}

60 seconds thereafter.

Just like cassette

_tapes,

diskettes are made of

_magnetic

materials

and can be erased

_by

_stray

_magnetic

fields. It is an excellent idea

_{_}

to

back-up

all

_important

disks on _spare diskettes. The

_following

precautions

should be followed

_concerning

diskettes:

1. Return the diskette to its

_storage

_envelope

whenever it is

removed from a drive.

2.

_Keep

diskettes away from

magnetic

fields and

_{ferromagnetic}

materials which

_might

become

_magnetized.

_Strong

_magnetic

fields can distort recorded data on the disk.

3.

_Replace

_storage

_envelopes

when

_they

become _worn, cracked or

distorted.

_Envelopes

are

_designed

to

_protect

the disk.

4. Do not write on the

_plastic

_jacket

with a lead

_pencil

or ball

point

pen. Use a felt

_tip

pen.

5. Heat and contamination from a

_carelessly

_dropped

ash can

_damage

the diskette.

6. Do not _expose diskettes to heat or

_sunlight.

7. Do not touch or

_attempt

to clean the disk surface. Abrasions

may cause loss of stored data.

8. Flexible disks must be in the same

_{temperature-and}

_humidity

environment as the disk drive for a minimum of 5 minutes before

installing

the diskette in the disk drive. These environmental

requirements

are as follows:

Temperature

50° F

(10°

C)

to 80° F

(27°

C);

maximum

_gradient

of 20°F

(11.1°C)

per hour

Relative 8% to

_80%,

maximum wet bulb

(9)

Booting

the Disk Unit

After

_connecting

the disk unit to the

_computer

an

_attempt

can be

made to boot the

_system.

Before

_booting

the

_system

be

sure

that the

_computer

and disk

_are

both

_powered

_up. Next insert a diskette

_containing

the disk

_operating

system

into drive 0 and close the door. The

_boot

can then be executed

to load the

_operating

_system.

_Computers

_containing

a DISKBUG® or

SBUG-E© monitor have an internal disk boot which is executed

_by

enterin

a D command. Users without those monitors must enter the boot

by

han

as listed in the disk

_operating

_system

software documentation.

Problems

If _any

_problems

are encountered in

_booting

the disk

unit,

the

REGTEST and STEPTEST

_diagnostics

_may be used to determine if the disk

controller is

_operating

_properly.

Power _up the

_computer

_system

and the

disk unit. The disk unit is on when the

_cooling

fan runs. If you do

run into some kind of

_problem(s)

check the

_following:

1.)

Make sure _you have at least 20K of _{RAM memory.}

2.)

Run the _memory

_diagnostics

and

_verify

this

_memory.

_to

be

_good.

3.)

Makes sure the disk controller board is

_properly

_programmed

with

the

_shorting

blocks.

4.)

Makes sure the DMAF2 disk controller board is

_plugged

onto the

computer

system

and is

_properly

seated.

5.)

Make sure the flat ribbon cable

is

_plugged

on the disk

controller board and is oriented

_correctly.

6.)

Makes sure the flat ribbon cable is

plugged

onto

both

disk

drives and is oriented

_correctly.

Check the orientation very

carefully.

7.)

Make sure the _power connectors are

_plugged

into their mates on the back of both drives.

8.)

Makes sure the miniature connector

_going

to the FD-M motor

control

board

is oriented

_properly

and

_plugged

onto the

connector

_pins

as

_specified

in the instruction set.

9.)

Confirm that the

_cooling

fan on the disk

_system

is

_running.

It

should run whenever the disk

_system

is turned on.

10.)

Make sure _you have the _proper diskette installed in the

_system.

11.)

Run the REGTEST

_diagnostic

_(details

_follow).

(10)

(11)

REGTEST

The REGTEST

_diagnostic

can be used to

_verify

that the

various

registers

on a DMAF2 disk controller board are

_being

accessed

properly.

REGTEST assumes that the disk drives are connected to the controller and power is

applied

as described in the checkout instructions.

To

use

the REGTEST

_diagnostic,

the code must be entered into the

computer

instruction

_by

instruction

_using

the memory examine and

change

function of

the

_computer's

monitor.

_Program

execution should then be

started at hex location 0100

_by

either

_setting

the _program counter to

0100 and

_typing

G or

_by

_typing

J 0100

_depending

on _your monitor.

REGTEST

will

then check each

_register

and will

alternately

select drive

0 and then drive 1.

Correct

drive selection is indicated if the LED on

the front of drive 0

_lights

briefly

and if the LED on drive 1

_lights

briefly

when the one on drive 0 _goes out. Both LEDs should never be on

at the same time. Both drive motors should be

_running.

If any

register

errors are detected an X will be

_displayed.

If no errors are detected a

+ _will _be

_displayed.

The

_diagnostic

should be allowed to run until

256+'s

have been

_displayed.

REGTEST

may

be exited

by

depressing

the RESET switch on the

computer.

A diskette need not be installed in the drive.

STEPTEST

The STEPTEST

_diagnostic

can be used to

_verify

that the track

selection

_circuitry

of the

_system

drive and the controller are

_working

properly.

If

_desired,

a blank diskette may be used in

place

of the

supplied

system

diskette.

To use the STEPTEST

_diagnostic,

it should first be entered into the

computer

instruction

_by

instruction

_using

the memory examine and

change

function of the

_computer's

monitor. A diskette

_(perferably

blank or at least write

_protected)

should then be installed in drive 0 and the door

closed.

_Program

execution should then be started at hex location 0100

by

setting

the _program counter to 0100 and

_typing

Gor

_by

_typing

J 0100

depending

on the

_computer's

monitor. STEPTEST will then select drive #0

and check to see if the index hole

sensing

and motor control

circuitry

is

_working

_properly.

If so, the disk drive heads will be moved back and

forth between track 00

_and

track 76. STEPTEST

_outputs

no information to

the user--if the heads move back and forth across the

_diskette,

_proper

(12)

STEPTEST - 6809

Version

* *

HEAD STEPPING PROGRAM

*

F020 _COMREG

EQU

$F020

_ 1791 COMMAND REGISTER

0100 _ORG

_$0100

0100 8E FO 20 START LDX

_#COMREG

_{LOAD THE} _{COMMANDADDRESS}

0103 C6 FE _LDB

#$FE

SELECT DRIVE

#0

0105 £7 04

STB

4,X

STORE IN DRVREG

0107 £6 84 LDB

_0,X

_MOTORS

_ON,

_WAIT _UNTIL

READY 0109 C5 80

BITB

#$80

010B 26 F3 _BNE _START

010D C6 08

_LOOP

_LDB

_#$08

RESTORE THE HEADS

O10F 8D OC _BSR _EXEC

EXECUTE

THE COMMAND

0111 C6 4C _LDB _#76 _TRACK ₇₆

0113 £7 03

STB

3,X

. STORE IN DATA REGISTER

0115 8D 11 BSR DEL

₂₈

_{WAIT FOR} ₁₇₉₁

0117 C6 18

LDB

#$18

SEEK COMMAND

0119 8D 02 ~

BSR

_EXEC

_ EXECUTE THE COMMAND

011B 20 FO _BRA _LOOP

RE-DO THE STEPPING

011D £7 84

_EXEC

STB

0,X

EXECUTE THE COMMAND

O11F 8D 07

BSR

‘DEL

₂₈

_{WAIT FOR} ₁₇₉₁

0121 £6 84 WAIT LDB

_0,X

.

LOOP UNTIL NOT BUSY

0123 C5 O1 _BITB _#1 0125 26 FA _BNE _WAIT 0127 39 _RTS 0128 8D 00

_DEL28

BSR

DEL14 012A 8D 00. DEL14 - BSR DEL 012C 39

_DEL

RTS

0100

_END _START - 10

(13)

-F000 F80A F024 0100 0100 0103 0106 0108 010A 010C O10E

0111

0114

0117 0119 0118 011D 011F 0121 0123 0125 0127 012A 012C 012F 0131 0134 0136 0139 0138 013E 0140 0142 0145

0147

0149

014C_

O14E 0152 0154 0157 0159 015B O15F 0160 | 0163 0165 0168 016A 016B 0100 FF iF 00 F9 00 21 23 21 22 23

6B

24 24 24

F8

6B F8 FF

00

OA

OA.

OK * * ADDREG

OUTCH

DRVREG

-START TEST

DELAY

DEC BYTE REGTEST - 6809

Version

*

~~

DMAF2 REGISTER TESTING PROGRAM

EQU

$F

₀₀₀

EQU

$F80A

EQU

$F024

ORG

$0100

LDX #ADDREG LDB BYTE

STB

0,X

STB

1,X

STB

2X

STB

3,X

STB

$21,X

STB

_«$22,

X

STB

$23

LDB

$22,X

BSR TEST LDB

_$23,X

BSR TEST

INC

BYTE LDB

#$FE

STB

DRVREG BSR DELAY LDB

#$FD

STB

DRVREG BSR

_DELAY

LOB

O#$FF

STB

DRVREG

LDA.

#"

4" JSR

_[OUTCH]

BRA

_{_START}

CMPB._—s-BYTE

BEQ

OK LDA.

_"Xx"

JSR

[OUTCH]

RTS bog LDX

#$F

_FFF

LEAX

-1,X

CPX #0 BNE DEC RTS FCB 0 END START

START OF DMAC REGISTERS

- CHARACTER OUTPUT ROUTINE

DRIVE SELECT LATCH

LOAD

ADDRESS OF REGISTERS

STORE IN

REGISTERS

START READING DATA

INCREMENT

THE

PATTERN

SELECT

DRIVE 0

WAIT AWHILE

SELECT DRIVE 1

DESELECT

ALL

DRIVES

“PRINT

A+.

~

RE-DO THE

TEST

COMPARE THE DATA

OUTPUT A X IF ERRORS

(14)

Technical

_Information

;

The

_following

_sections contain a limited amount of technical

information

on the DMAF2. This

information

is not

_supplied

to serve as

a

_repair

_manual. _Service _should

only

be

_performed

_by

_qualified

personnel.

Some

_information

_may _be _useful _in

configuring

the DMAF2 for

your

particular

system.

How it

Works

The DMAF2 disk unit can be broken down into four

_major

_parts:

disk

controller

_board,

motor control

_board,

_power

_supply

and the disk drives.

Disk

Controller

Board

The _purpose of the disk controller board is to interface the disk

drives to the

_computer

_system.

_The _DMAF2 _Controller _Board

is

_very

complex

and field service should not be

_attempted.

The motor control board turns _{AC power} to the disk drives motors on

and off as determined

_by

the timer on the controller board.

_Integrated

circuit IC1 on the board is an

_optically

_coupled

_triac _which _in _turn

drives

_Ql,

a

_larger

triac. The

_optical

_coupling

_is

_required

_to _isolate

the disk

_system's

_ground

from the AC power line. NOTE: The motor

control

_signal

_from _the _disk _controller _board _is

fed to two

_unused

_pins

on both of the disk drives thru the flat ribbon cable. The miniature

three-pin

connector on the motor control board must be

_plugged

onto

these unused

_pins

on one of the two drives otherwise the drive motors

will not turn on. The orientation of the connector is

_important.

Check

the

_instruction

_set _for

_complete

_details. _Some _of _the

components

_—

on

this motor contro? board are

_connected

to one side of the AC power line

whenever the disk

_system's

line cord is

_plugged

into an AC

_receptacle

regardless

of whether or not it is turned on or

_running.

_Therefore,

exercise extreme caution and never

_put

_your _hands or tools near the

board

_whilethe

_disk

_system

_is

plugged

into an AC

_receptacle.

P-20

_DF

Power

_Supply

.

The _power

_supply

_on

the disk

_system

is

_just

about as

_simple

as _you

can make it. The secondaries of the transformer are wired to

_provide

7

VAC and 32 VAC

_outputs.

These in turn are rectified

_{by separate}

full

wave

_bridge

_rectifier _circuits

providing

+9 VDC and +30 VDC:

_outputs.

These

_outputs

are then run thru

_separate

_integrated

_regulators

_Q3

and

₀₄

to

_yield

the +5 VDC and +24 vDC

_outputs

_required

_by

the disk drives.

Power for the disk controller board is

_supplied

_by

the

_computer

_system.

(15)

-12-DMAF2 Controller Board

Jumpers

~The DMAF2 contains a number of

jumper

programmable

options

as

described

_below.

HALT/BUS

REQ

When

in the HALT

mode,

DMA transfers will take

_place

_by

halting

the _processor. When in the BUS.

_REQ

position,

transfers will be

made

_by

_utilizing

the bus

_request

feature of the 6809. This

jumper

should

normally

be in the

_HALT

_position.

PRE

COMP/NORM.

When in the PRE COMP

_position

the DMAF2 controller

_boardwill

automatically

pre-compensate

(shift)

certain bits written to

disk

_by

250 nS on inner tracks while in the double

_density

mode.

Most disk drives

_require

write

_{pre-compensation}

and this

_jumper

should be left in the PRE COMP

_position.

BA/BA

&

BS”

When. in the BA

_position

the controller will

respond

to the

processor's

DMA

_acknowledge

_by

_looking

at

_only

the BA

(bus

available)

line. For 6809

systems

with the DMAF2

_jumper

in the

BA-& BS

_position,

the controller will

_respond

only

when BA and

BS are

_high.

_Normally

a

_jumper

on the 6809

_processor

board

automatically

puts

the BA & BS status on the BA

_line

so the

DMAF2

_jumper

should be left in the BA

_position.

1

MHz/2MHz.

.

This

jumper

selects the MEMORY READY line

timing

in 6809

systems.

The

_jumper

should be in the 1 MHz

_position

for 1 MHz

computer

a : Ze

systems

and in the 2 MHz

position

for

systems

operating

.

’ .

MR/NORM

When

in

the MR

_position

the

_system's

slow _memory

line

will

_be

pulled

low each time an access is made to the DMAF2 board. This

jumper

should be in the MR

_position

for all 6809

_systems

running

at 2

_MHz.or

when

_using

certain

_dynamic

memory

boards.

32K/56K

a

:

This.

_jumper

_changes

the decoding so that the

DMAF2:

_will

respond

to different addresses. It should be in the 32K .

position

for

6800

_operation

and the 56K

_position

for 6809

_systems.

_

UPPER/LOWER

This

jumper

selects which 512

_byte

block that the DMAF2 will

respond

to of the 1K block selected

_by

the 0 - 7°

jumper.

This

jumper

should

_normally

be in the LOWER

_position.

(16)

-0-7

This set of

_jumpers

is used to

_change

the DMAF2's

_addressing

i

1K

_byte

_segments.

The

_jumper

should

_normally

be left in the

position.

IRQ/NORM

When in the NORM

_position

no

_interrupts

_generated

by

_the

DMAF2

will be

_passed

to the

_computer

_system.

This _jumper when in the

IRQ position

will enable

_interrupts.

The

_jumper

should

_normally

be in the NORM

_position.

n 4

32K/56K

——

_UPPER/LOWER

0-7 PHYSICAL DMAF2

L 4

_FOO0-F

_1FF

56 U 4

_F200-F

_3FF

56. L 5 F400-F5FF 56 U

5 _F600-F

_7FF

56 L 6 F800-F OFF 56 U 6 FAOO-FBFF

56

L 7 FCOO-FDFF 56

_U-

₇ _FEOO-FFFF

DESEL/SEL

With this

_jumper

in the SEL

_position,

additonal addresses on

lines A16 - Al9 will be

output

on the bus

_during

DMA transfers.

This

_jumper

should be in the SEL

_position

_only

in 6809

_systems

utilizing

memory boards that use the Al6 - A19 address lines

such as the

S/09

system.

(17)

-TO +S

FD-M Motor Control Board ND SE DRIVE @ MOTOR SOem Fawr e( mend

pt

N.C.O—

f°

{c1

g.

6

MOTOR CONTROL DRIVER ON CONTROLLER BOARD VWA——4

I

N.C.

ap~&1

r

R3 Qt , c2 |

Tos

WHITE ee ToWalt Receptacle BLACK

Parts List FD-M Motor Control Board

Semiconductors — Qi —— ICI Resistors — RI 180 0hm

_%

watt resistor ——~ R2 2200hm "

"”

—- R3

4.7 K ohm % watt resistor

Capacitors

— Ci

0.01 mfd @

₄₀₀

V

_capacitor

——~ C2 0.1 mfd

@

400

V _capacitor

TIC206D or TIC216D 400 V. triac

MOC3011

optically

coupled

driver Note: All

_voltage

_{specifications}

are minimums.

(18)

(19)

-| 1

Il

|

Tdi

i

P-30 DF Power

_Supply

* . : ni sboll cr

.

ry rs if co Ps F ee _“ 3

4d

Peis _oe oe G ; « _ty

Parts

List P-30 DF Power

Supply

ro

el

Resistors Diodes

R1 243 ohm 1% resistor D1*

—

1N5402

_high

current diode

R2

4320 ohm 1% resistor D2* " " " a”

R3 not used D3* " " ” "

_R4

not used D4* " " res

D5* notused

Capacitors

D6* | 1N4003 diode

Ci

_0.1

mfd

_capacitor

D7*.

_©

1N5402

high

current diode

-C2 0.1 mfd

_capacitor

D8* ” " ” " C3*

_10,000

mfd @ 40 VDC

_DgO*

" "

no"

D1o* nt ‘ mn . mo oe D11* 1N4003 diode D12* 1N4003 diede

D13*

1N4003 diode

D14*

not used

electrolytic

capacitor

_ C4*

_29,000

mfd @ 15 VDC

electrolytic

capacitor

C5*

1,000

_mfd.@

25 VDC |

electrolytic

capacitor

C6 not used |

MELEE

TARE

Pky we

Regulators

.

Q1* ~LM323+5 VBC

_regulator.

- Q3* notused Q2*

_{£~LM317adjustable}

regulator

. ——- _O4* _notused.

Miscellaneous

T1* Power transformer 50-60 Hz —— F1 ‘2%

amp slo-blo fuse

Primary:

120/240 VAC —— J24

Jumper

Installed

Secondaries: 12 VAC @ 1.5 amp 12 VAC @ 1.5 amp

7VAC@3 amp

24 VAC @ 200 ma

All _components

_flagged

with a

(*)

must be oriented as shown

(20)

Ajddng

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Of

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-40

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oo

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sa

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SH3EWNN

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YOLOJNNOO

(21)

Drive

Programming

- Remex Disk Drives

In order to use the

_supplied

disk drives

they

must first be

programmed

to enable the functions

_required

by

the

_system.

The

following

description

should be used in

_conjunction

with the DRIVE

PROGRAMMING

_PICTORIAL

to _program the Remex disk drives.

()

Turn. one drive

_upside

down so that the door is toward you and so

that _you are

_looking

at the

component

side of the circuit board.

Jumper

selections are made on these drives

by

small

shorting

blocks which look like

_connectors

without any wires attached.

Install

_the

DRIVE

0

_jumper

_(DS1)

as shown in the

pictorial.

Remove the

_jumper

labeled

"DL"

if it is

installed.

.

Using

a flat

blade

screwdriver

or IC

puller,

carefully

remove the

pull-up

resistor

block

as shown in the

_pictorial.

This drive is

now

_programmed

as DRIVE 0. A notation should be marked on the

back or

_top

of the drive

_labeling

_it

as drive 0.

Turn the other drive

_upside

down

and

install

the

_jumper

_block

_in

the DRIVE 1 location

(DS2)

as shown in the

pictorial

below. Do

not remove the

_pull-up

resistor block from this drive.

Remove the

_jumper

labeled

"DL"

if it is installed. This drive is

now

_programmed

as DRIVE 1.

Be sure that on BOTH drives the

only

other

_jumpers

installed are as follows: 4000 $2 U-U BB-CC

~15V

R67. on the disk drive

should-be

_changed

from a 10K to a 100K for

the _power

_up-RESET

circuit.

_to

function

_properly.

(22)

install _jumper tike this for drive 1

INDEX

Connector to Motor _T

Control board s

(Drive 1 _only)

install jumper here for drive 6,

\

8 $3 DS1 +

eles]

[es]

15V

[ee]

@-5V

Pull-up

® resistor biock

Remex Drive

_Programming

Pictorial

19-B DS1 1B ®@ @ @ a

_+[s9]

3wee

_@

4Be

_e@@

DS4 Do not _change these shunts

(23)

Drive

_{Programming--Qume}

Disk

Drives

In order to use the

_supplied

disk

_drives

they

must first be

programmed

to enable the functions

_required

by

the

_system.

The

following

description

should be used in

_conjunction

with the

DRIVE

PROGRAMMING PICTORIAL to _program the

Qume

disk drives.

(

)

Turn one drive

_upside

down so that the door is toward you and so

that

you are

_looking

at the

_component

side of the circuit board.

Jumper

selections are made on these

_drives

_by

small

shorting

blocks

which

look

like connectors

_without

any wires attached.

(

)

Install

the

DRIVE 0

_jumper

as shown on the

_pictorial

below.

(

)

_Using

a flat blade screwdriver or IC

_puller

carefully

remove the

two

_pull-up

resistor blocks as shown on the

_pictorial.

This

drive is now

_programmed

as DRIVE 0.

A

small

notation

should be marked on the back or

_top

of the drive

_labeling

it as drive 0.

()

Turn the other drive

_upside

down

and install the

_jumper

block in

the DRIVE 1. location as shown in the

_pictorial

below. Do not remove the

_pull-up

resistor blocks from this drive. The drive

is now

_programmed

_as

_DRIVE

1.

1 1 1

install _jumper here for !

Connector to motor control INDEX

ff Prive 1

board (from drive 1_only)

3

I

~<¢=

install

jumper here for

Drive

6 i

Wey

" PULL-UP RESISTOR BLOCKS

2

”

Do not _change these jumpers

DRIVE

PROGRAMMER

PICTORIAL -:

(24)

-Data

_Separator

_Adjustment

Procedure--DMAF2

_Disk

Controller

Adjustment

of the data

_separator

on the DMAF2 disk controller board

requires

some

_special

_equipment

_including

a

_good

dual channel

oscilloscope

and a disk formatted with all

"1's".

This

_adjustment

requires

a technical

_ability

and should

_only

be done

_by

_qualified

personnel.

1.)

Connect channel A of an

_oscilloscope

to test

_point

TP1l and

channel B to TP2. The _scope should be set on 1

_uS/div.

and 2

volts/div.

The _scope should be set to

_trigger

on channel A.

2.)

Install the

_special

"All

ones"

_alignment

disk in drive 0 and

execute the SINGLE DENSITY LOAD HEAD _program below:

(if

the

controller boad has a

_jumper

in the 32K

_position

rather than the

56K

_position,

use addresses 9020 and 9024 rather than F020 and

F024 in all the

_following

_programs:

₎

0100 86 DE

0102 B7 F024

0105 B6 F020

0108 20 ~=FB

3.)

Adjust

the DF

_pot

for 1 uS

_pulses

on channel A.

Adjust

the VCO

pot

for the waveform shown below:

Tet Chennel

_B

7

od

LS

Le

Kaus —#

4.)

With the

_oscilloscope

controls invert channel B and add channel

A and channel

_B.

The waveform should be as below:

Channel

A &B

]

|

i

(B

_inwerted)

|

—Hws

_ke

Adjust

the VCO and DF controls to minimize the width of the

displayed.

spikes.

5.)

RESET the

_computer

and execute the DOUBLE DENSITY LOAD HEAD

'

program listed below:

. : ~ 0100 86 FE 0102 B7 F024

_—

0105 B6 F020 0108

_$20

FB

Adjust

the MFM

_pot

for the waveform shown below:

Chennet

Aa 8

_

i

__|

= ee (B

_inwerted)

i

|

l

er

k———_

wS

—__-6.)

Secure each

_pot

with a dab of

_liquid

silicone rubber cement.

RESET the

_system

and remove the

_alignment

disk.

(25)

-Colored

Band

7

VOLTAGE

REGULATOR

° ° Oo _oO o ° oO oO oO oO

MOTOR CONTROL CABLE

pon

nnnnnn-f

|

--- POWERTRANSFORMER wf; Moror \ _i ° . ° CONTROL i 1 BOARD i 1 [ i

!

POWER pc

CABLES

SUPPLY { '

wy

i i ° 1 1 Ine nee «4+ AC CABLES DRIVE 6 U DRIVE

₁

_|

(26)

(27)

Parts List

-DMF2A Disk Controller

Resistors

Rl 1K ohm

1/4

_watt

resistor

R29 150

ohm

1/4

_wattresistor

___ R2 1K" R30 150 R3 10K ohm

potentiometer

R31 150 " " " " R4 10K " R32 10K " u " “ R5 140 ohm 1% resistor R33 470 " " " " R6 806 ohm 1% resistor R34 10K " * " " R7 2.2K ohm

_1/4

wattresistor

~~ R35 10K " " " " —_— R8 2. 2K " " , R36 10K tt iy a R9 5K ohm

_{potentiometer}

R37 10K " " " "

____ R10 270 ohm

1/2

watt resistor R38 10K

" " " " R1l 10K ohm 1% resistor ~~ R39 10K " "™ " " ____ R12 1.1K ohm 1% resistor R40 10K " " " o R13 3.48K ohm 1% resistor R41 10K " " " " ____ R14 3.48K ohm 1% resistor R42 10K " " "8 R15 1.1K ohm 1% resistor ~~ R43: 10K " " " " _____ R16 10K ohm 1% resistor R44 10K " " " "

R17 1K ohm

_1/4

watt res

istor

“ R45 10K " " " " __ R18 1K " "8 tR46 7.5K

_1/4

watt resistor

R19 150 ohm

1/2

_watt

_resistor

~

tR47 10K ohm 1% resistor

—__R201KK

" "

____ R48 10K

ohm1/4

watt resistor

R21 5.6K ohm

1/4

watt

resistor

R49 10K ___ R22 10K R50 470K" " " : R23 10K u _au _ity a —

R51

10M u u tt it R24 100K iT wu 13 H R52 1K wt n “ at R25

_47K.

au “u u _ity _——

R53

10K ” “ iy u R26 330 "“ a u a R54 4.7K u a _iii _uw R27 150 n uw ii nu _—_———R55 10K u " uw u R28 150 " " " " R56-10K " u " a

“———~

R57 220 u a “ nv

t Value may vary as _necessary to

_adjust

_cycle

stretch

Integrated

Circuits

IC1 4558 dual

_operational

C21 78L12 12-volt

_regulator

amplifier

IC22 4024

_voltage

controlled

IC2 96S02 dual one shot oscillator

IC3 748112 dual J-K

_flip-flop

1€23 4049B or 14049 hex CMOS

IC4 74LS123 dual one shot inverter

IC5 14541 timer

(MOS)

1C24 74LS86

_quad

EXCLUSIVE-OR

1C6 74LS166 shift

_register

collec-tor NOR

_gate

IC28 6844 DMA controller

1C29 74.8273 octal latch

1C30 74.8273 octal latch 1C31.74LS74 dual D

_flip

_flop

1C32 79L12 -12 volt

_regulator

MTTTTTT

EEE

MITT

TLE

FL

(28)

LIT

|

PETEEEEE

EEE

ALT

1016 74LS00

_quad

NAND

_gate

IC17 74LS74 dual D

_flip

_pf

_poly

110

_pf

_poly

470

_{pf poly}

0.1 mfd

_capacitor

0.022 mfd film 0.1 mfd

_capacitor

470

_pf

_poly

0.22 mfd film 62

_{pf capacitor}

20

_pf

_electrolytic

C43 100

_{pF poly}

_capacitor

C44 0.1 mfd

_capacitor

Semiconductors

Q1

2N4402 PNP

transistor

Q2

2N4400 NPN transistor

Di 1N4735

_6.2

volt zener diode

D2 1N4148

silicon

diode

D3 1N4148

_silicon

diode

Miscellaneous

D4 1N4148 silicon diode

D5 1N4734 5.6 volt zener diode D6 1N4148

silicon

diode

D7 1N4148 " "

(29)

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31 12 10

IMPORTANT NOTE

eongaa

1

ic1g O-—

Although

every

sffort

has

been

made

tomake

thesupplied

documentation

assccurate

and

furre-1 —19

fiona)

ssPossible,

Southwest

Technical

Products

Corporation

will

noteesume

responsibility

fe,

.

t a

250 nS

inaccuracies or _damages incurred

OFgenerated by_suchmaterial. Also, Southwest Technical Products .

9602

Corporation reserves the_tighttorevise and make changesin such material and/or the Product atany time,