IBM 6360, 6580 Product Support Manual

IBM

6360

Diskette

Unit

IBM -6580

Display

Station

PREFACE

This manual

is

written

for use

by

experienced

US

and World Trade service personnel. Refer

to

other

product publications

if

additional information

is

needed. The

display formats shown in this manual are

subject

to

minor changes

due

to

software improve-

ments.

Future

versions

of

this manual will reflect

any changes. Where applicable,

component

locator drawings,

adjustments, and

other

service aids are given

by

module. This manual is in seven sections.

Where applicable,

component

locator drawings,

adjustments, and

other

service aids are given

by

module. This manual

is

in nine sections.

The- 25-Line Display, Large Display, Keyboard, and Diskette sections contain service information, adjustments, and removal/replacement procedures. In

the

diskette section,

the

type

2D

head

is

shown only when it

is

necessary for

adjustments

or

removal.

The Display, Keyboard, and Diskette sections

contain service information, adjustments, and removal/replacement procedures.

The

System Electronics/Power Supply section contains service information and removal/replacement

procedures. The Cables, Connectors,

and

Test Points section

helps locate

test

points in the system. Point

to point wiring is shown for tracing wires and voltages through the system.

The Diagnostics section gives a summary

of

the diagnostic package. Charts and flowcharts provide reference information for operating procedures and test results.

More detailed descriptions and operating instructions are provided for

the

diagnostic procedures

that

are

not

self-explanatory.

The

display formats

that

require interaction, and are

not

self-explana-

tory, are described.

The

Intermittent

Problem Diagnostic Approach

section is a guide

to

help service personnel solve

intermittent

system problems. These procedures

should be used only after

MAPs have failed

to

isolate the problem. The

Operating Instructions section lists some

of

the

basic

menu

sequences available

to

the

operator.

These menus permit the

operator

to

perform

tasks and functions

that

are available in

the

IBM

Licensed Program Textpack

I.

Since

customer

applications,

menu

sequences,

and

basic system

operation are a result

of

software programs, the

most

current

Operator

Reference Guide should

always be used

as

a reference source for system

operation

or

function.

25-LlNE DISPLA Y

Page

Service Information

Service

Aid ...........................

1

Operator Controls .

.. ' ....................

I

Fonts .

..............................

2

Removals/Replacements

Display .

.............................

3

LARGE

DISPLA Y

Safety

Safety Instructions

......................

6

CRT

Anode

Discharge Procedure .

............

7

Service Information

Locator .

............................

8

Service Aids, Operator Control .

...........

.

10

Display Indicators .

.....................

11

Data Flow .

..........................

12

Power Distribution

.....................

13

Signal Distribution . . . . . . . . . . . . . . . . . . . . . 14

Grounding

Point Locator .

................

15

Adjustments

Image Size .

..........................

16

Image Centering .

......................

17

Removals/Replacements

Large Display Module .

..................

18

Rear Cover

..........................

19

Display Analog

Card ....................

19

Low

Voltage Power Supply

...............

20

High Voltage Power Supply

...............

20

Mainframe Assembly and Front Cover

........

21

KEYBOARD Service Information

Locator .

...........................

24

Key

Module Operation

..................

25

Shift-Lock Mechanism .

..................

25

Basic Assurance Test

(BAT)

...............

25

Matrix Chart

.........................

26

TABLE OF CONTENTS

Data Flow .

..........................

27

Keybutton

Position .

....................

28

Keyboard

A"angements

.................

29

Tools and Equipment

...................

29

Cleaning Procedures

....................

29

Adjustments

Shift

Lock

Brake

Adjustment

. . . . . . . . . . . . . .

30

Removal/Replacements

Keyboard Cover .

......................

31

Pad

Card

............................

31

Key

Module .

.........................

32

Fly Plate Replacement .

..................

33

Shift-Lock Mechanism .

..................

34

Spacebar Mechanism

....................

34

SYSTEM

ELECTRONICS POWER SUPPLY

Service Information

Locator .

...........................

36

DC

Voltage Distribution

.................

37

LEDs

..............................

37

System Grounding

Path Schematic .

...........

38

AC

Voltages

.........................

39

DC

Voltages

.........................

39

Fuses .

.............................

39

C:u"ents . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39

PrInter Sharing ConFrguration

..............

39

Removals/Replacements

Cover .

............................

.

40

Electronic Cards. . . . . . . . . . . . . . . . . . . . . . .

40

Distribution Board

.....................

41

Power Supply

........................

42

D1SKETTE UNIT Service Information

Locator .

...........................

44

Service

Aid

..........................

44

Diskette Handling .

.....................

45

Data Flow .

..........................

46

Power/Signal Distribution

................

47

Read/Write Flowchart .

..................

48

Service

Aid

..........................

49

Special Tools

.........................

49

Adjustments

Operator Handle

Adjustment,

Collet/Flat

Spring

Adjustment

Check .

...............

.

50

Solenoid and Bail

Adjustment ..............

5)

Stepper Drive Band

Adjustment

............

53

Head Carnage

Adjustment

................

54

Removals/Replacements

Cover .

.............................

55

Right

Diskette Drive

....................

55

Head Load Bail

.......................

55

Diskette Guide

Assembly .................

56

Collet/Flat Spring .

........................

57

Head Load

Arm

Pad Replacement

...........

58

Bail Solenoid and Idler

..................

59

LED and PTX/File Control Card .

...........

60

Diskette

Adapter

Card

...................

61

Head/Carnage

Assembly

.................

61

Pulley and Drive Band .

..................

62

Stepper Motor

........................

62

Drive Band Replacement

.......•.........

62

AC

Drive Motor .

......................

64

Capacitor

...........................

66

CABLES, CONNECTORS &

TEST

POINTS

Locator Chart (For

Use

With MAPs) .

............

68

AC

Voltage Wiring Diagram

..................

75

AC

Voltage Grounding Path Schematic .

..........

78

Locator Chart (Point To Point Wiring Checks)

......

82

DIAGNOSTICS BasicAssurance Test

(BAT)

.................

114

Display Format .

.....................

115

BAT

Progress

E"or

Codes

...............

115

Resident Non-Automatic

(RNA)

Diagnostics .

.....

116

Display Format

...........

,

..........

117

Diagnostic Tests .

.....................

118

The

drawings and 'specifications

contained

herein

shall

not

be

reproduced in whole

or

in

part

without

written

pennission.

IBM

has prepared this maintenance manual for the

use

of

IBM

Customer

Engineers in the installation,

maintenance

and

repair

of

the

specific machines

indicated.

IBM

makes no representations

that

it

is

suitable for

any

other

purpose.

Information

contained in this

manual

is

subject

to

change from time

to

time.

Any

such change will be

reported

in subsequent revisions

or

distributed through Customer Engineering Memorandums (CEMs)

to

all subscribers.

Requests for copies

of

IBM

publications should be

made

to

your

IBM

representative

or

to

the

IBM

Branch Office servicing

your

locality.

Comments

about

the publications

may

be

addressed

to

(IBM Corporation,

740

New Circle Road N.W.,

Publications

Department

901,

Lexington, Ky.

40511). IBM

may

use

or

distribute any

of

the

infonnation

you

supply in any way

it

believes

appropriate

without

incurring

any

obligation what-

ever.

You

may,

of

course,

continue

to

use the

infonnation

you

supply.

"It

is possible

that

this material

may

contain

reference to,

or

information

about,

IBM

products

(machines

and

programs), programming,

or

services

that

are

not

announced in

your

country.

Such

references

or

information

must

not

be

construed to

mean

that

IBM

intends

to

announce

such

IBM

products, programming,

or

services in

your

country."

"IBM,"

"Executive,"

"IBM EXECUTARY," and

"Selectric"

are

registered trademarks

of

the

IBM

Corporation.

©Copyright

International Business Machines

Corporation

1980, 1981,

1982

SAFETY

PRECAUTIONS

All

IBM Customer Engineers

are

expected

to take every safety precaution possible and observe

the

following

safety practices when servicing IBM equipment. Mechanical

Safety:

1.

Safety glasses

must

be worn.

2.

All

safety devices, such

as

guards, shields, signs.

ground wires, etc.,

must

be restored after main-

tenance. When a guard or shield

is

removed to

observe or make

an

adjustment. that shield

must

be replaced when work in the

area

is completed.

3.

Watches. rings, necklaces,

ID

bracelets, etc.,

must

be removed when servicing the machine.

4.

Care

must

be used when working near moving parts. Keep hair away from moving parts. A void wearing loose clothing that might be caught

in

the machine. Shirt sleeves

must

be kept but-

toned or rolled above the elbows. Ties

must

be

tucked

in

the shirt or have a tie clasp approxi-

mately three inches from the end. Tie chains

are

not

recommended.

Electrical

Safety:

1.

The equipment referenced in this manual may use high voltages.

Check voltage labels!

2.

Safety glasses

must

be worn when checking

energized circuits.

3.

If

a circuit

is

disconnected for servicing or parts

replacement,

it

must

be reconnected and tested

before allowing the use

of

the machine.

4.

Power should be removed from the machine for servicing whenever possible. Remember, when

checking voltages, avoid contacting ground

potential, such

as

metal floor strips, machine

frame, etc.

5.

Meter continuity checks should be used instead

of

voltage checks whenever possible.

6.

Do

not

apply power

to

any part, component.

or subassembly when

it

is

not

physically

mounted

in

the machine, or its approved

ser-

vice position.

General Safety:

1.

Each Customer Engineer is responsible to be certain

no action on his/her part makes the

product unsafe

or

exposes customer personnel

to hazards.

2.

Store the removed machine covers in a safe, out

of

the way place where no one can trip

over them.

3.

If

you

must

leave the machine

in

a down condition, always install the covers and disconnect the power before leaving the customer's office.

4.

Always place

CE

tool

kit

away

from

walk areas

where no

one

can trip over it.

5.

Maintain safe conditions in the

area

of

the

machine while performing and after completing

maintenance.

6.

Before s'tarting the equipment,

make

sure fellow

CEs

and customer personnel

are

not

in

a hazard-

ous

position.

7.

All

the machine covers

must

be

in

place before

the machine

is

returned to the customer.

Note:

Refer

to the Safety

CEMs

relating to this

product(s) for further safety precautions.

DIAGNOSTICS (Continued)

Customer Engineer

(CE) Loadable Diagnostics

.....

120

Display Format

......................

124

Keyboard Function .

...................

125

MDI

Run

Time Options .

................

125

MDI

Run

Time Options MenU-Stop On Options . 125

MDI

Test Unit Numbering .

..............

125

MDI

Prompt Responses

.................

126

MDI

Prompts .

.......................

127

MDI

Display Typing Area

or

Menu Area

......

129

MDI

Trace Display

....................

130

CE U fllities . . . . . . . . . . . . . . . . . . . . . . . . . . . . 131

Error

Log

Utility Group .

................

131

System

Error

Log .....................

131

Error

Log

Dump

Procedure

..............

132

System Exerciser

........................

133

Load

Program Function .

...................

134

Diskette Unit (6360) Head Alignment

Compatability Check .

.............

134

Field Engineering Service Number/Release

Modification

(FESN/RVM)

.................

134

Licensed Program Guidelines

................

134

Memory

Card

Configuration .

................

134

INTERMITTENT

PROBLEM DIAGNOSTIC APPROACH

Introduction

...........................

136

Data Collection

.........................

137

Instructions .

........................

137

Problem Isolation .

.......................

137

Section 1 Keyboard Isolation

................

138

Section 2 Display Isolation .

.................

139

Section 3 Electronic Module Isolation

..........

139

Section 4 Diskette Unit Isolation .

.............

140

Section

55215

Printer Isolation

..

141

Section

65218

Printer Isolation

..............

142

Section 7 Printer Sharing Isolation .

............

142

Section 8 Power Supply Isolation

.............

143

Section 9 Isolation Undetermined

.............

143

Section 10 Software/Operator Procedures

........

144

Section

11

Environment

...................

144

Questions

..........................

144

Recommendation .

....................

144

Section 12 History Build

...................

145

Section

13

Service Request Numbers

...........

145

Section

14

BAT

Failures

............

146

Pre-CRT Initialization

BAT

Failures .

.... _ ...

146

Post-CRT Initialization

BAT

Failures

........

146

Section 15 Diskette

RNA

Test Failure Codes .

.....

146

Drive

Set

Ready Test (L)

................

146

Stepper Motor Phase Test (M)

.............

146

Track Step Test (T) .

...................

147

Section

16

Guidelines for Error

Log

Interpretation . .

147

Section

17

Trace Table

Usage

................

148

OPERATING INSTRUCTIONS

Menu Sequences

Typing Tasks .

......................

.

150

Work Diskette Tasks .

..................

151

Program Diskette Tasks .

................

152

Spelling Tasks

.......................

153

Change Format

Key

...................

154

Request

Key ........................

155

Instructions .

........................

156

CAUTION Do not remove the display covers. Operating voltages np to

14,000 volts are present inside the display.

No

bleeder

resistor

is

provided.

SERVICE

AIDS

The

display

module

is

a field replaceable

unit

(FRUI

which

is

not field serviceable.

The

raster

is a normal

background

image

on

the

display

screen which

is

visible when the brightness control

is

turned

up

(clockwisel all

the

way.

A

blank

screen

or

blank

area

of

the

screen

may

not

be a

problem

in

the

display

module.

The

problem

may

be

a

change

in

or

a loss

of

the

input

signals.

NOTE:

When a

displayed

character

is

changed

an

'"after

image"

will remain for a short time.

"if-+---

Brightness

Display Raster

25-LlNE DISPLAY - Service Aids,

Operator

Controls

-1-

-2-

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Display Fonts

DISPLAY

1.

Turn the system power off.

2. Disconnect

the

system

AC

power cord.

3. Disconnect the display connector from the

electronics

module Panel 1.

4. Lift the display module

up, releasing

the

interlock.

5.

Pack the display

in

a display packing box.

CAUTION Do

not transport the display module unless it

is

suitably

packed. The display may burst inward

if

broken.

D

25-LlNE

DISPLAY

- Removals/Replacements

-3-

Interlock

Safety

TABLE

OF CONTENTS

LARGE

DISPLAY

Safety Instructions

......................

6

CR T A node Discharge Procedure. . . . . . . . . . . . . 7

Service Information

Locator .

............................

8

Service Aids, Operator Control

.............

10

Display Indicators .

.....................

11

Data Flow .

..........................

12

Power Distribution

.....................

13

Signal Distribution

.....................

14

Grounding Point Locator .

................

15

Adjustments

Image Size .

..........................

16

[mage Centering .

......................

17

Removals/Replacements

Large Display Module

...................

18

RearCover

..........................

19

DisplayAnalogCard

....................

19

Low

Voltage Power

Supply

...............

20

High Voltage Power

Supply

...............

20

Mainframe

Assembly

and

Front

Cover

........

21

-5-

-6~

LARGE

DISPLAY

- Safety Instructions

DANGER

Operating voltages

of

up to 17,000 volts are present

inside the large

display. A bleeder circuit

is

provided.

However, you must wait at least

10 seconds after

power

is

turned off for the voltages to reach a safe

level (less than

60 volts). Follow all normal safety

precautions.

SAFETY

Whenever the rear cover

is

removed from the large

display.

ALWAYS ensure

that

the CRT (Cathode

Ray

Tubel ground spring

is

in place, and

that

it

is

connected

to

the CRT socket o.

Do

this before any type of

service

is

performed.

Use

the CRT Anode Discharge Procedure whenever continuity checks are made, and during removal/replacement procedures. This will ensure that

no high voltage

is

present.

CRT ANODE DISCHARGE PROCEDURE

1.

Turn

the system power off, and disconnect the

system

AC line cord from the wall

outlet.

2.

Wait 15 seconds.

3.

Perform the

rear

cover removal.

4.

Perform

the

low voltage power supply removal.

5.

Use

an alligator clip

to

connect

the plug end of a

Fluke'

meter lead

to

the

display mainframe.

6.

Push the probe end of the meter lead under the

boot

on the anode O. Visually ensure

that

the probe

tip

touches the metal prongs on

the

anode lead.

7. Remove the probe from

the

anode, and ensure

that

the

boot

is

securely seated against the surface of the

CRT

O.

CAUTION Even though this safety procedure

is

used, if the anode

lead

is

disconnected from the CRT, the CRT may

slowly recharge.

Make

sure you discharge the anode

hole in the

CRT:

Every 5 to 10 minutes

Before connecting the anode lead to the

CRT

When

installing a new mainframe assembly or

high voltage power supply.

* Trademark

of

John Fluke Manufacturing, Inc.

-7-

-8-

LARGE DISPLAY

Brightness Control Knob

- Locator

Rear

Cover

Display AC Cable

Front

Cover

Connector 2

Display Signal Cable

Bezel

High Voltage Power Supply

Low Voltage Power Supply

,,~LVl

Display I ndicator

~

LV2 (DC

out)

LV3 (AC in)

prong

ZL--lIlII~~~~---

CRT Ground S .

CRT

Socket

LARGE

DISPLAY

- Locator (continued)

-9-

CRT Anode Lead

Yoke

• Sealed Pots (Do Not Adjust)

-10-

LARGE

DISPLAY

- Service Aids, Operator Control

DANGER

Operating voltages

of

up to 17,000 volts are present

inside the large display, A bleeder circuit

is

provided,

However, you must wait

at

least

10 seconds after power

is

turned off for the voltages

to

reach a safe

level

(less than 60 volts),

SERVICE

AIDS

The

raster on

the

display screen

is

a normal display

which

is

usually visible when

the

brightness control

is

turned

up

(clockwise)

all

the way.

A

blank screen or blank area of the screen may

not

be

a problem

in

the display module.

The

problem may be

a change

in

or

loss of the

input

signals.

NOTE: When a displayed character

is

changed, an

"after image"

remains

for a short time·,

DISPLAY INDICATORS

There

are

three

display indicators on

the

back of

the

display

module.

They

are:

0=

Low Voltage Power

Supply

(LED)

1

= High Voltage Power

Supply

(Neon)

2

= Horizontal Beam Deflection Circuit (Neon)

These indicators show the operating condition of the two

power supplies and the circuit.

If

an

indicator

is

ON (glowing), it indicates

correct

operation.

If

an

indicator

is

OFF,

it

indicates a problem.

The

problem

may

be caused by one or more of

the

following:

Loose

or defective indicator lamp

Loose

or

defective cable or plug

Defective Low Voltage

or

High Voltage

Power

Supply

Defective Analog Card

NOTE:

Loss of horizontal

beam

deflection causes

both

indicators 1

and 2 to

be

OFF.

LARGE DISPLAY - Display Indicators

-11-

Display

Indicators

2

-12-

LARGE

DISPLAY

- Data Flow

Electronics

Module

Large Display

Display

Analog

Adapter

Bright

Card

Microprocessor

Card

on

the

System

Video

K'"

Card

moves

-t

Display

data

from

the

Buffer

Vertical

Sync

Memory

Card

(RAM)

Horizontal

Sync

(Controls

logic

and

character generator)

LARGE

DISPLAY

- Power Distribution

-13-

--Panel

1

Electronics

Module

____

J

Keyboard

Cable

-

I

0

A

1

I

I I

Electronics

Logic Card

Package

I

2

f---

I

Large Display Module

3

~

I

4

0

III

I

Internal

Distribution

Cable

c

Low

5

0

~

."

::>

I

Voltage

Large Display

.D

Power

6A

'§

LV3

AC Cable

a

I

Supply

ILV2

68

I

7

CRT

Anode

-----l

I--

f{

:

8

Lead Display

4~

Analog

I

LED

~

I High

~

8

Assembly

'--,-

____

J

Voltage

Card

Power

J

Supply

System Power Cable

Diskette Unit

L12--.r

P2

P1

Power

Supply

I

AC

Motor I

--%

Diskette Unit

AC

Cable

12

Left

Drive

J

12

AC

Line

rr_C::;~

Cord

9

AC

Motor

9

I

L

_-1

I

Diskette

Unit

-

DC

Cable

10

I

82

U

Diskette

10

I

Right

Drive

I

Q

I

(Optional)

Adapter

I

Card

11

I

~

11

L

----

Power Supply Distribution Schematic

(System with Large Display)

-14-

LARGE

DISPLAY

- Signal Distribution

Large Display

Module

Display Cable

2

Electronics ModulE'

--

Panel 1

o Internal

3

4

6A

68

Distribution Cable

Signal Distribution Schematic

Electronics I

Package I

I

I I

I

____

J

I

Grounding Point Locator

LARGE

DISPLAY

- Grounding Point Locator

-15-

Grounding Points

• Ground S rin on CRT

to

CRT Socket

5

..

AC

LV3·2

to

Frame Ground

• (AC) Connector 8 Ground

to

Frame Ground

o (AC) Dis la Power Cable Ground

to

Frame Ground

o Connector 2 Pin 8

to

Frame Ground

o Connector J1-17

19,21,

and

23

to

Frame Ground

• Shield

(for

Video

Output

wires)

to

Frame Ground

o (World Trade Only)

Low

Voltage Power Supply

to

Frame Ground

Connector 8

(AC out)

Display Power Cable

(ACin)

-16-

LARGE DISPLAY - Adjustments-Figure 1

IMAGE SIZE ADJUSTMENT

1. Turn the system power off.

2. Perform

the

rear cover removal.

3. Turn system power on, load the

CE

Diagnostic

Diskette, and select

UTILITIES. Press ENTER.

4. Select

DISPLAY from the Group Selection Menu.

Press E

NTE

R.

5. Select TEST PATTERN. Press ENTER. (The H test pattern should appear

on

the

display screen.)

6. Turn

the

adjustment screws on

Rl06

and R203 fully

counterclockwise to make the image on

the

screen

the

minimum

size.

WARNING: Use care in

the

following steps. Component

damage may ocCur

if

the image size is iocreased

to

where

the edges or corners

of

the

image eXtend beyond the

ioside edge

of

the display screen bezel.

7.

Adjust R203

to

increase the

image

height until

the

sum of the dimensions V and V'

is

20 to 25

mm

(O.B

to

1.0 inches).

B.

Adjust

Rl06

to

increase the

image

width until the

sum of

the

dimensions

Hand

H'

is

20

to

25 mm

(O.B

to

1.0 inches).

Inside

Edge

of

Bezel

H

NOTE:

If

the image

is

noticeably off·center on the

screen,

use

the

Image

Centering Adjustment

to

correct the problem.

V

r-

--\ --

-----

---r-

----------

----,

I Edge

of

Pattern after Size

:--

I

,

Adjustments

1\

: Edge of Pattern , with I mage Size

Adjusted for

I Minimum

,

I

L

_______

___

_

~

__

__________

t

___________

_

V'

--

H'

o

IMAGE CENTERING ADJUSTMENT

CAUTION

Be

very careful when making this adjustment because

power must be

ON.

Make this

adjustment

only when absolutely necessary.

NOTE: The image

is

properly centered when

the

outline

of

the

H pattern

is

at least 2.5

mm

(0.1 inch)

from the bezel all the way around

the

screen,

including the corners.

1.

Verify

the

image size

is

correct. (See Image Size

Adjustment)

2. With

the

test

pattern showing on the display screen,

rotate

one

of

the centering rings • until the square

tabs on the

two

rings are aligned.

3. With

the

square tabs aligned, rotate

the

rings together

to

center the image between

the

left

and

right edges

of the bezel.

NOTE:

The

centering rings can be rotated

360

degrees.

4.

Rotate the

two

rings

in

opposite directions, at the

same

time

and

in

equal amounts, to center the

image

top to bottom on the screen.

o

LARGE DISPLAY - Adjustments - Fjgure 2

-17-

I nside Edge of

Bezel

- -

._-

-

---.----~

-

-------_._----

Edge

of

Pattern

after

Size

and Centering Adjustments

:---

-18-

LARGE DISPLAY - Removals/Replacements

LARGE DISPLAY MODULE REMOVAL

1. Turn

the

system power off.

2. Disconnect

the

two

AC

power cords (Connectors

8 and 12).

3. Disconnect

the

display cable from

the

electronics

module panel 1.

4.

Be

sure

the

display module

is

facing straight forward

and

is

exactly

level

(not tilted). .

Large Display

-----1

III

Electronics

___

Module

------'-

__________

---'

(Front

View)

5. Lift

the

display module straight up

to

release the

interlock.

6. Pack

the

display module

in

a display packing carton

if

it

is

to

be

transported.

DANGER Do

not transport the display modnle nnless it

is

suitably

packed. The

CRT

may burst inward (implode) if broken.

Interlock

REAR COVER REMOVAL

1.

Turn

the

system power off.

2. Release

the

quarter-turn cover fasteners

in

the

back

of

the

display module.

3.

Slide

the

cover

to

the

rear

to

remove.

4.

ALWAYS check

to

ensure

the

ground spring

around

the

CRT

is

in

place, and

that

it

is

connected

to

the

CRT

socket

before performing any

type

of

service.

DANGER Be

extremely

careful

when

working

near

the

neck

of

the

CRT.

The

CRT

may

burst

inward (implode)

if

broken.

DISPLAY

ANALOG

CARD REMOVAL

1.

Turn

the

system

power

off.

2. Perform

the

rear cover removal.

3.

4.

5.

Disconnect

the

J301, J302, J501.

and

J502

connectors

from

the

analog card

O.

Cut

the

cable tie (if present)

that

holds

the

cable

to

the

analog card cover. (Replacement

of

the

shipping tie

is

unnecessary.)

Remove

the

two

screws 0

that

hold

the

analog

card and ground strap

to

the mainframe.

CAUTION Do

not

touch

the

heat

sink

on

the

back

of

the

analog

card.

It

may

be

HOT.

6. Unseat

the

analog card by lifting

the

card removal

levers

O.

7. Carefully slide

the

analog card 0 up and

out

of

the

card guides.

A"1~

~

Cover Fasteners

'.~~-.

~'~

LARGE DISPLAY - Removals/Replacements

-19-

-20-

LARGE DISPLAY -

Removals/Replacements

LOW

VOLTAGE

POWER

SUPPLY REMOVAL

1.

Turn

the

system power off.

2. Perform the rear cover removal.

3. Disconnect the

two

AC power cords (Connectors

8and12).

4. Disconnect

LV1

(LED

0),

LV2 (DC), and LV3 (AC)

connectors

0 from

the

Low Voltage Power Supply.

5. Remove the

four

screws

and the power supply

•.

HIGH VOLTAGE

POWER

SUPPLY REMOVAL

1.

Turn

the

system power off.

2. Perform the rear cover removal.

3. Perform the CRT Anode Discharge Procedure.

DANGER Be

extremely careful when working near the neck

of

the

CRT. The CRT may burst inward (implode)

if

broken.

4. Disconnect

the

anode lead 0 from the CRT.

5.

Disconnect cable plug

J3

from the

connector

6.

strip

O.

Remove the

two

screws 0

supply

to

the rear until free.

washers that

are

between the

and

the

mainframe.)

CAUTION

and

sl

ide

the

power

(Save

the

two star

power supply cover

The CRT may slowly recharge when the anode lead

is

disconnected.

Be

sure to perfonn the Anode Discharge

Procedure in the anode hole in the

CRT before

replacing and reconnecting the

High

Voltage Power

Supply.

MAINFRAME

ASSEMBLY

AND

FRONT COVER

REMOVAL

1.

Turn the system power off and disconnect the

AC

line cord from the

wall

outlet.

2. Remove the brightness control knob

•.

3. Perform the

rear

cover

removal.

4. Perform the Display Analog Card Removal.

5.

Perform the Low Voltage Power Supply Removal.

NOTE:

If

only removing the

front

cover, skip

to

Step 8.

6. Remove the three screws, the Cable/Display Indicator

Panel,

and the

AC

Cable Assembly • from the

Mainframe

Assembly.

wires.)

(Cable has three ground

7. Perform the CRT Anode Discharge Procedure and the

High

Voltage Power Supply Removal.

8. Disconnect the display cable from the Electronics

Module (Panel 1, Connector 2).

DANGER Be

extremely cateful when working near

the

neck

of

the

CRT. The CRT may burst inward (implode)

if

broken.

9. Remove the eight screws

•

that

hold the Mainframe

Assembly

to

the front cover.

10. Lift

the

mainframe assembly 0 from the cover,

and

place it

in

a shipping carton for safe handling

during transport.

CAUTION The CRT may slowly recharge when the anode lead is disconnected.

Be

sure

to

perform the Anode Discharge

Procedure when replacing the mainframe assembly

and

before reconnecting

the

anode lead from the High Voltage

Power Supply

to

the

CRT. (This also applies

to

a new

mainframe assembly being installed.)

'\

•

LARGE DISPLAY - Removals/Replacements ·21·

Front

Cover

Mainframe

Assembly

-23-

TABLE

OF CONTENTS

KEYBOARD

Page

Service Information

Locator .

..............................

24

Key

Module Operation .

....................

25

Shift-Lock Mechanism. . . . . . . . . . . . . . . . . . . . 25

Basic Assurance Test

(BAT) ..................

25

Matrix Chart .

...........................

26

DataFlow

............................

27

Keybutton

Position. . . . . . . . . . . . . . . . . . . . . . 28

Keyboard Arrangements .

..................

29

Tools and Equipment .

....................

29

Cleaning Procedures .

.....................

29

Adjustments

Shift

Lock

Brake

Adjustment

...............

30

Removals/Replacements

Keyboard Cover .

.......................

31

Pad Card

.............................

31

Key

Module .

..........................

32

Fly

Plate Replacement.

...................

33

Shift-Lock Mechanism .

...................

34

Spacebar Mechanism

.....................

34

-24-

A

RD - Locator

KEYBD

Key Module

~~

Keyboard Cable Connector

::::';:;:~~L09iC

Card

~~,j~

~

,v~

,~

.

V

~'(jJ..,

.

!:l'

::.JI'

Speaker

30-Pin Edge Connector

Pad Card

Keyboard

Connector

~]~~~§_~~

Compression Spring

Flat

Spring

Fly Plate

spring---Ij(==,.,.=~

Clearance

At

Rest

Normal

Clearance

Fully Pressed

Pad Card

Capacitor

Plate

Stem Assembly

Pad Card

Key Module Operation

Shift-Lock Restoring Mechanism

Key Module Operation,

KEYBOARD -

Shift

Lock Mechanism,

BAT

-25-

BASIC

ASSURANCE

TEST

(BAT)

A Power on Reset (POR)

of

the

system will automatically

start

the

keyboard Basic Assurance

Test

(BAT} and perform

wrap tests on

the

keyboard

adapter

circuits

of

the

system

card.

The keyboard BAT will verify the

keyboard

microproces-

sor, located on

the

keyboard

logic card

is

operating cor-

rectly.

The

keyboard

notifies

the

system processor

of

the

keyboard status

by

transmitting

a specified sequence

of

two

bytes

of

data. Successful

completion

of

the

BAT

is

necessary

for

the

keyboard

to

proceed with normal sys-

tem operation.

A

third

byte

containing

the

keyboard

ID

is

also

transmitted

to

provide configuration

information.

System Power-On-Reset

BAT

Signal

to

Keyboard Microprocessor

BAT

Self-test

of

Keyboard Microprocessor

BAT

Completion

Codes

Transmitted

System Electronics Accepts Data Byte Codes

Keyboard

ID

Transmitted

Keyboard Operational

-26-

KEYBOARD - Matrix Chart

Edge

Connector

j~

Position

(01) A

(02) B

(03)

c

~

(04) 0

:J

~

(271 E

(28)

F

(29)

G

(30)

H

Drive Lines

" flO;

Keyboard Number 1 Matrix Chart

Key

Pressed

(First)

To

System Electronics

KEYBOARD - Data Flow

-21-

-28-

KEYBOARD

- Keybutton Position

KEY

POSITION

The key positions are shown

in

Figure 10.

Key

positions

marked with a

"T"

are typamatic keys, positions marked

"N·A"

are non·active, and those marked

"M"

are make/

break keys. The position of

the

typamatic keys are con·

trolled

by software and may

be

different for World Trade

countries depending on the

country

layout.

Work Station Control

Keys

Key

Position

Number

Non

Act

jVt~

Kt!ys

Typamatic Key

Function

Keys

Cursor Control Keys

96-Character Keyboard

STRAP

IDs

LANGUAGE

SUPPORT 92 96

Australia/New Zealand

1

Austria/Germany

29

Belgium

(Flemish~

247

Canada-England

37

Canada-

F rance/B ilingual 39

Czech-Czech

83

Czech-Slovak

85

Denmark

57

Finland 248 France/Belgium

(AZ)

251

France

(Qwerty)

252

Greece

(Latin)

75

Hong Kong (Latin)

119

Hungary

91

Italy

IS.A.I

41

Japan (English)

69

Netherlands

43

Norway

55

Poland

93

Portugal

63

Rumania

87

S.

Africa

81

Spain

45

SP

Speak/Puerto Rico 25

Sweden

53

Switzerland-Germany

51

Switzerl

and-France

49

Turkey

79

U.K.llsrael

67

U.S.

1

U.S.

249

U.S. Dvorak 250

Yugoslavia

(Latin)

95

"'X's

Indicate

Jumper

Positions

X X X X

X

X X X X X

X

X X X X

X X

X

X X

X X X X X

X

X X

X X X

X

X X

X X X X X

X X X X

X X

X X X

X X

KEYBOARD

- Keyboard Arrangements, Tools & Equipment, Cleaning Procedures

-29-

10

JUMPERS'

3 5

X X X X

X

X X X X X X

X

X X

X X X X X

X

X X

X

X X X

X X

X

X X

X

X X

X

X X X X

X

X X X X

X X

X

The

Keyboard Assembly requires

no

scheduled preventive

maintenance.

TOOLS

AND

EOUIPMENT

The

following

equipment

is

required

to

service

the

key~

board:

Keybutton

Puller (PIN

9900373)

Alcohol Pad (PIN

9900679)

Lint-free Cloths (PIN

2108930

or

2123106).

or

Disposable Cleaning Cloths

(PIN

1650800)

CLEANING

PROCEDURES

Plastic parts and painted covers can be cleaned

with

IBM

cover cleaner, PIN

450891,

or

a mild non-abrasive

hand

soap. Other solvents or cleaners

are

not

recommended as

damage

or discoloration

of

plastic or painted parts

can

result.

Cleanliness

is

important when working

on

the ,keyboard.

Any

particle between

the

key module fly plate and

the

pad

card

is

a potential problem.

Before

any

keyboard disassembly, prepare a

smooth,

clean

work

area

by wiping contamination away with

an

alcohol

pad_

Gently

tap,

brush, and shake

the

keyboard

assembly

to

remove any loose particles which could get into

the

pad

card and

fly plate area during disassembly and reassembly_

The

pad card and key module fly plates are cleaned by carefully wiping each with an alcohol pad followed by a lint-free cloth_ Care should be

taken

not

to

dislodge

or

remove fly plates from key modules_

Some minor liquid spills,

such

as

soft drinks or coffee with

sugar, can be removed

by

first washing

the

pad card and

affected

fly plates with a lint-free

cloth

dampened

with

a

mixture

of

water and a mild hand soap. Rinse with a water-

dampened

lint-free cloth,

then

clean

with

an

alcohol pad

and

dry

with

a lint-free cloth_

NOTE:

Sticky key modules

must

be replaced_ A severe

liquid spill

may

necessitate replacement

of

the

entire

keyboard

assembly_

-30-

KEYBOARD

- Adjustments

Shift

Lock

Brake

Adjustment

1.

Adjust

the

shift lock brake screw

so

the shift latches and

and

locks reliably (clockwise increases brake tension). 0

KEYBOARD

COVER

1.

Turn

the

system power off.

2. Remove the top cover by loosening the four captive

screws on

the

bottom

of

the

keyboard assembly O.

•

Four

Captive Screws

•

PAD

CARD

1.

Turn

the system power off.

2.

Remove the top cover by loosening the four captive

screws on

the

bottom

of

the keyboard assembly (see

Keyboard Cover

RemovaLI

3. Remove the two screws holding

the

keyboard logic

card. Disconnect

the

speaker cable 0 and the key-

board cable. 0 Remove the logic card.

KEYBOARD

- Removals/Replacements

-31-

4.

If

a key module

is

to

be removed, locate

the

position

of

the

key before the keyboard

is

inverted and remove

the

keybutton.

5. Remove two mounting screws on each side

of

the

keyboard under

the

contamination

shield. 0

6. Lift

the

keyboard

out

of

the

keyboard frame.

7.

Invert

the

keyboard and install it

on

the frame using a

screw

on

each side

to

hold the assembly

in

place.

-32-

KEYBOARD

- Removals/Replacements

Warning: Removing

the

pad card with a key

presse!I may cause the fly plate to spring

out

of

the

key module.

8. Ensure there

is

no pressure on any keys.

9. Remove the screws from

the

pad card. 0

10. Lift the pad card from

the

keyboard assembly.

•

\

•

Pad

Card

Screws

11. To assemble, reverse the above procedure. Before inserting the

logic card, tho pad card should be

cleaned and lubricated

as

follows:

A.

Carefully wipe the pad card with

an

alcohol pad

followed by a lint·free cloth.

B.

Use

a light abrasive

(PIN

9900089) or a .pencil eraser to clean the top and bottom copper can· tacts of

the

30'pin edge connector.

C.

After cleaning the contacts, apply a thin layer of

IBM

No.1 0

oil

to the edge connector (top and bottom) of the pad card. Coverage of about 50%

of the

tab

area

(as

measured from

the

edge of

the tab)

will

ensure the desired protection of

the

contacts .

Warning: Do not over-lubricate the edge connector, as permanent damage to the key modules may occur

if

lubricant gets on the

pad card.

Pad

Card Copper Contacts

KEY

MObULE

Removal

1.

Use

the keybutton removal tool (PIN 9900373)

to

lift

the

key

button from the key module

to

be

removed.

2.

Disassemble the keyboard

(see

Pad

Card Removal).

3."

Reach under the

key

assembly and push

the

failing key

module up until it

is

free

.•

Warning: To prevent loosening a fly plate, ensure no

keys are accidentally pressed while the pad card

is

removed .

NOr

h

•

Spacebar Edge

I.

Retaining Ear

~/llltfj/id/j/ll~Ui//"

NOTE: The module retaining ears must clear the frame. Installation

1.

Insert the

key

module. Match the opening

in

the key

module with the aligning

lug

in

the

mounting hole. The

key stem notch must

be

positioned toward

the

space·

bar edge

of

the keyboard

.•

2.

Reinstall the pad card .

3. Turn the

key

assembly over and, if necessary, reposi·

tion the contamination shield.

4. Put the keybutton on

the

key module.

5. Reinstall

the

logic card cables and covers.

FL

Y

PLATE

REPLACEMENT

Reinstalling a disconnected fly plate

in

a key module

is

not

recommended.

If

replacement

is

necessary because a new key module

is

not

available, inspect the fly plate

to

ensure the

connection

is

not

loose between the spring and fly plate and

the

fly

plate

is

not

damaged.

1.

Remove the keyboard

top

cover. (See Keyboard Cover

Removal.1

2. Remove the key

button.

3.

Remove

the

stepped insert, spring, and a-ring from the

key stem.

4. Disconnect

the

keyboard module cable from the key-

board logic card. 0

5. Remove the two mounting screws on each side of the

keyboard under

the

contamination shield

.•

6 ..

lift

the keyboard

out

of the keyboard frame.

7.

Invert

the

keyboard and install it

on

the frame using a

screw

on

each side

to

hold the assembly

in

place.

Warning: Removing the pad card with a

key

pressed may

cause the fly plate to spring out

of

the key module.

8. Remove the pad card screws

.•

9. Lift

the

pad card/logic card from the keyboard

assembly.

10.

Remove the key stem from the key module housing.

11. Form

the

spring on the fly plate

so

there

is

12.7mm

(0.5 inch I between

the

ends of

the

spring. Reconnect

the

fly plate. 0

Metric

I I

12. Place

the

key stem back into the key module housing.

13.

Reinstall the pad card/logic card.

14. Remove the screws that

mount

the

keyboard.

15. Place

the

keyboard assembly right side up and reinstall

the

keyboard mounting screws.

KEYBOARD -

Removals/Replacements

-33-

16. Reinstall

the

spring, o-ring, and stepped insert (notch

toward

the

spacebarl. 0

Spacebar Edge

Notch

•

I

~

fIIZIi

/(1/)//

11/1

///1

VfU

111/1/)//

/(1/1111>

17. Reinstall

the

keybutton.

18. Reconnect the keyboard module cable

to

the keyboard

logic card.

19.

Reinstall the keyboard cover.

ijo,-.-----Stepped

Insert

~

"0"

Ring---------6

I

@--compreSSionsprin

g

I

~

Housing

r~~

Stem Assembly

FlatSPdng~

,

~---

Fly Plate Spring

I

Fly

Plate

---V

-34-

KEYBOARD

- Removals/Replacements

SHIFT-LOCK

MECHANISM

1. Perform the keyboard cover removal procedures.

2. Remove both left and right shift keybuttons and the shift·lock

keybutton.

3. Remove

the

screw and shift lock brake from the shaft

assembly

.•

4.

Slide

the

shaft assembly

out

of the pivot housings

.•

5. Remove

the

left

and

right pivot housings from

the

keyboard frame. Pivot housings are removed from the

bottom

of the keyboard assembly

in

the same proce·

dure as removing a key module (see Key Module

Removal).

SPACEBAR

MECHANISM

1. Perform the keyboard cover removal procedures.

2. Remove

the

ENTER keybutton

.•

3. Hold the spacebar

to

keep it from being pressed.

4. Push the key module key

stem.

down

to

disconnect

it

from the spacebar.

5. Slide the spacebar

as

far

to

the right

as

it

will go.

6. Slide

the

stabilizer.

to

the

left and pull the spacebar

upward and

out

of

the

keyboard - be careful

not

to

tear the contamination shield.

7.

Remove

the

stabilizer by pulling it forward.

Key/Stem

~K~

Sh'ft

ResetBa'~1

IG

li

~

:r

4~

__

GUlde/Plvot(S)

./

<r~

~~')~~r~;;~~~.

Stab,l,zer

~~~.~

/ V

Lt.'

/~

•

,

..

---

Keyboard Module Assembly

TABLE

OF

CONTENTS

SYSTEM

ELECTRONICS/POWER SUPPLY

Service Information

Page

Locator .

.............................

36

DC

Voltage Distribution .

..................

37

LEDs

...............................

37

System

Grounding Path Schematic .

.............

38

A C Voltages .

..........................

39

DC

Voltages .

..........................

39

Fuses .

..............................

39

Currents

.............................

39

Printer Sharing Configuration

...............

39

Removals/Replacements

Cover .

.............................

.

40

Electronic

Cards ........................

40

Distribution Board .

......................

41

Power

Supply ..........................

42

·35·

-36-

SYSTEM ELECTRONICS/POW

ER

SUPPLY - Locator

Q

Pl

~aK'

o

~~'~

:

@~'

~~::y

Fuse

I

,./:;t;;/

W

AC

Input

£.) AC

Output

A4

Power Supply

. I be labeled 12

if

the

*

Connector 8 :"'1.1

lied on

the

system.

large display IS lnsta

'"~

___

~A~C~~(O\U:tP~u~tl~

_______

A~:"'-l-==-=-

______

~

AC

(Input)

panell~M'~::'o:'O'

oo~

M.

\:"':'

'r

:r:::/~/i\_/

___

Panel

2

--:~

- 0

o\Q)o

~'o\L7Jo

1.

'I

""

@--

=

Co.

g

fUSE

JU

rr==il@7@J@Jl0r;:::===",),;)

~

oH

_~~.

c

•.

~

~@Jk~~~~==~~,~

-::==~\-----------

""'communications

DC Voltage

Diskette

DC

Voltage

Diskette Signal

Keyboard

Communications

Printer Sharing

SYSTEM ELECTRONICS/POWER SUPPL Y - Voltage Distribution, LEOs

-37-

Communications

'"

c

:::i

Diskette

Panel 2

11

~~~==~~Li~~l=O~

7

On/Off Switch

[J]

Power Supply

L1

LED Assembly Cable

Electronics

Package

DC

System Power Cable

Power Supply Voltage Distribution

DC

A1

Panel 1

LED's

~;d~!

~H

@

LED A Indicates overvoltage

or

undervoltage

LED B Indicates overcurrent

LED C Indicates

overheat

Panel 1

'Connector

8 will be labeled

12

if

the

Large Display

is

installed, and AC

power

to

the

Diskette Unit

is

cabled differently,

ISee

the

Power Supply Distribution

Schematic

in

the

Large

Display section for cabling differences.

-38-

SYSTEM

ELECTRONICS/POWER

SUPPLY -

System

Grounding Path Schematic

On/Off Switch

Grounding

prong~

~~

<::

~

Panel 2

Diskette

AC

Components

~

"

Q

u

«

Power Supply

\

Ground Strap

Between Panels

* Connector 8

wi

II

be

labeled 12 on

systems with the

Large Display.

System Grounding Path Schematic

Panel

1

Mag

Card

Unit

PANEL 1 -

GROUND

WIRE CONNECTIONS

Conn/Pin

0-5 0-6

1-5

1-6

2--8

7-10 7-12 7-13 7-14

Identification

Printer

DC

Cable

to

Frame Ground

Mag

Card

Unit

DC

Cable

to

Frame Ground

Display DC Cable

to

Frame Ground

Keyboard

DC

Cable

to

Frame Ground

PANEL

2 -

GROUND

WIRE CONNECTIONS

Conn/Pin

Identification

*8-1

Diskette

AC

Cable

to

Frame Ground

9-1

System

AC

Line Cord Ground

Printer

DC

Voltages and Currents,

AC

Voltages and

SYSTEM

ELECTRONICS/POWER

SUPPLY -Fuses,

Printer Sharing Configuration

-39-

The power supply must

have

the

ability

to

provide the

r:::--

following DC voltages and currents

to

the system:

TOTAL

OPERATING

OUTPUT

REGULATION

CURRENT

*

VOLTAGES (PERCENT)

(AMPERES)

+24.0 VDC +10,

-8

1.3

I

r:

-

--l

+12.0 VDC

+10,

-8

.9

I

+12.0 VDC

+

5,-5

1.6

+ 8.5 VDC

+

5,-5

2.5

I

System

I

111*

l'

+ 5.0 VDC

+10,

-8

16.0

Card

-

5.0 VDC

+10,

-8

0.5

I

-12.0

VDC

+10,-8

0.25

I

Printer

*Actual performance may exceed the current listed.

6A'

I

Sharing

I

68'

I

Card

III

•

L _

__

.J

~.

DC

VOLTAGE,

UNDERVOLTAGE/OVERVOL TAGE

r.

- -

-,

Primary

r.

--:-,

LEVEL

LIMITS Work

I

Station

I

+24.0 VDC

16.8

-

31.2

I

System

I

System

I

+12.0 VDC

8.4

-

15.6

I

Card

I

Card

I

+12.0 VDC

8.4

-

15.6

I

L

+ 8.5 VDC

5.95

- 11.05

L

___

J

_J

+ 5.0 VDC

3.5

6.5

--

-

Secondary

-

5.0 VDC

(-

3.5)

-

(-

6.5)

-12.0

VDC

(-

8.4)

-

(-15.6)

Work

Station

DC

Voltage

Operating

Limits

* Work Station

Panel

1 Connector Positions

Printer Sharing Conjiguration

VOLTAGE

TOLERANCE

FUSE

US/Canada

104 - 127

VAC

7

Amp

WT (Except

Canada)

90

-137

VAC

6.3

Amp

WT (Except

Canada)

180 - 254

VAC

5Amp

40- SYSTEM ELECTRON ICS/POWER SUPPLY - Removals/Replacements

COVER

REMOVAL

ELECTRONIC

CARO(S)

REMOVAL

1.

Turn

the

system power off.

2.

Perform

the

display module removal.

3. Remove

the

top

cover mounting screw.

4. Remove

the

top

cover.

1.

Turn

the

system power off.

2.

Perform

the

display module removal.

3. Perform

the

electronics module cover removal.

4.

Lift

the

electronics package

to

the

service position.

5.

Disconnect

the

51

and 52 connectors, if necessary. 0

6. Remove

the

card retainer(s). 0

7. Remove

the

card(s)

by

grasping

on

the

side and

gently rocking the card(si back while pulling (out).

Memory Card

____

_

Display

Adapter

Card

Printer Sharing Card --------_r<

A4

Al

DISTRIBUTION

BOARD

REMOVAL

1.

Turn

the

system power off.

2. Perform the

display module removal.

3. Perform the

top

cover removal.

4. Disconnect the following connectors: S1, S2, A1, B1, C1, and D1.

5. Perform

the

electronics card(s) removal.

Warning: Card components can be easily damaged if the

cards are not carefully removed.

6. Remove the four card guide mounting screws, •

two

card guide mounting

brackets,.

and

two

card

guides

.•

7. Separate the

two

stiffeners

that

enclose

the

distribu-

tion board. 0 NOTE: When reassembling the distribution board 0

and

stiffeners, use

the

following procedure

to

prevent

mUltiple card damage.

8. Position the distribution board

so

connector A 1

is

in

the

lower right-hand corner,

as

observed from

the

front

of

the

electronics module.

9.

The

cable connector guide lugs must be on

the

top

surface of the horizontal rungs on

both

stiffeners.

10. The cable connector openings must face away from

the

distribution board on

both

surfaces.

SYSTEM ELECTRONICS/POWER SUPPLY - Removals/Replacements 41-

o

Right

Card

Guide

•

Card GUide

Mounting

sracket_Q

Cl-~

Card Guide

B1

~

Mounting

Bracket

7

~

Cable

Connector

Guide

Lugs

Al~~A

~

Horizontal

Rungs

o

Stiffener

----------

•

Distribution

Board

o

42- SYSTEM

ELECTRON

ICS/POWER SUPPLY - Removals/Replacements

POWER

SUPPLY

REMOVAL

CAUTION

Do

not remove the power supply covers. The power supply

is a FRU and

is

replaced

as

a unit. The power supply may

be hot.

1. Turn the system power

off

and

disconnect the system

line cord.

2. Perform

the

display module removal.

3. Perform the

top

cover removal.

4. Lift

the

electronics package

out

of the

bottom

cover.

5. Disconnect the following connectors P-1, P·2,

L-1

8, 9,

10,11.

0

6.

Disconnect the ground strap from the power supply.

7. Reinstall

the

electronics package.

8. Remove the four power supply mounting screws

.•

9. Lift

the

power supply up and

out

of

the

bottom

cover.

Power

@

FUSE.

Rear View

Strap

B1·B

TABLE

OF CONTENTS

DISKETTE UNIT

Service Information

Page

Locator .

...........................

44

Service

Aid

......

.

...............

44

Diskette Handling

.....................

45

Data

Flow.

. . . . . . . . .

.. . ............

46

Power/Signal Distribution

...............

47

Read/Write Flowchart

.................

48

Service

Aid

.........................

49

Special Tools

........................

49

Adjustments

Operator Handle Adjustment,

Collet/Flat Spring

Adjustment

Check

....................

50

Solenoid and Bail

Adjustment

.............

51

Stepper Drive Band

Adjustment

...........

53

Head

Carriage

Adjustment ................

54

Removals / Replacements

Cover .

.............................

55

Right Diskette Drive

...................

55

Head Load Bail

... . .................

55

Diskette Guide Assembly Removal .

.........

56

Collet/Flat Spring Removal .................

57

Head Load

Arm

Pad

Replacement

'"

.......

5 8

Bail Solenoid and Idler

..................

59

LED and

PTX/

File Control

Card

.....

60

Diskette Adapter

Card

......

61

Head/Carriage

Assembly.

. . . . . .

....

61

Pulley and Drive Band . . . . . . .

....

62

Stepper Motor .

.......................

62

Drive Band Replacement

................

62

ACDriveMotor

.......

...................

64

Capacitor.

........

.....................

.

66

43·

44- DISKETTE

UNIT

- Locator, Service

Aid

CAUTION The system supplies

AC

and

DC

power to the

diskette unit.

AC

voltage

is

present at the drive motor, fan and capacitor terminals anytime the system

is

turned on.

The

AC

motor and solenoid housings become

hot after continuous use. Let surfaces cool before servicing them.

Read/Write Head

Cable

Guide

AC

Capacitor

AC

Drive

Motor

Head Load Solenoid

I

Motor Drive

Hub

Operator

Handle

Diskette

Guide

/ Assembly

DISKETTE

HANDLING

To prevent

diskette

damage, observe

the

following pro-

cedures and precautions:

Do

not

use paper clips

or

rubber bands on

the

diskette.

Do

not

place heavy items on

the

diskette.

Place diskettes

in

their

envelopes and store

in

the

following conditions:

Temperature:

10°C

to

51.5°C

(50°F

to

125°F)

Relative Humidity:

8%

to

80%

If

the

diskette remains outside

of

the

machine's

temperature

environmental range (shown above),

do

not

use it

for

at

least five minutes.

The

diskette should

be

removed

from

its shipping

or

storage envelope

during

this

time.

Keep

the

diskette away from magnetic fields.

Always return

the

diskette

to

its storage envelope after

it

is

removed from

the

diskette drive.

Contaminated diskettes

(pencil marks, finger prints,

cleaning fluid) can cause data errors,

equipment

errors,

or head damage.

Diskettes

that

are creased

or

bent

can cause read/write

head damage and

should

not

be used.

Damaged diskettes

should

not

be inserted into

the

drive.

Return a

diskette

to

its envelope when

it

is

removed from

the

diskette

drive.

Do

not

lay diskettes near smoke

or

other

things

that

can

cause a diskette

to

be contaminated.

Do

not

use clips

or

rubber bands on a diskette.

Do

not

place heavy books on diskettes.

DISKETTE

UNIT

- Diskette Handling

-45-

Do

not

touch

or

attempt

to

clean

diskette

surfaces. Con-

taminated

diskettes will

not

work

correctly.

Do

not

place diskettes near niagnetic materials. Data can be

lost from a diskette exposed

to

a magnetic field.

Do

not

expose diskettes

to

heat

greater

than

51.7°C

(125°F)

or

direct

sunlight.

Do

not

write

outside

the

label area on diskettes.

Diskette Handling

46·

DISKETTE UNIT -

Data

Flow

Interrupt

Request

Data Request Diskette Drive

Select

Ready

POR

Signal

Data Acknowledge

Extended System Bus

+24

VDC

+12 VDC

+5 VDC

-5

VDC

System Adapter

Logic Interface

Stepping

Logic

Formatting Logic

Diskette Adapter

Card

Read/Write

Head

Select

Logic

Access Degate

Logic

File

Control Card

Diskette Unit Data Flow

LED

Head Load

Solenoid

Stepper Motor

System Electronics

System Card

Internal

Cables

51/---------1

Power Supply

Signal

Distribution

DC

Distribution

*AC

Distribution

DISKETTE

UNIT

- Power/Signal Distribution 47-

DISKETTE

DRIVE

UNIT

Diskette Adapter

r,

, ,

~"

fB4LJ

!

I ,

~

___________________

J

r----~--~--~

I R ,ght Drive I I Assembly I

r.1---,

(Optional)

File

:

Card I

LJ

L,.

___

j

I I

I

r-----,

I

I :

AC

Motor

I I

L

__

..J...

__ , __

.L

__

...J

_________

....J

FAN

Left

Drive

Assembly

*

If

Large Display

is

installed

on

the system,

AC

power

is

supplied

to

the

Diskette

Unit

at connector 8 on the back

of

the Large Display. The AC

connector

on

the Electronics Module

is

renumbered 12 instead

of

8.

48- DISKETTE

UNIT

- Read/Write Flowchart

START

No

Yes

10th Failure

Flag

Sector

Or

Replace

Disk'

Go

On

START

Flag

Sector

Or

>"'":'-~I--I~

Replace

Disk'

* Reset Counters

To

= 0

SERVICE

AID

The

diskette

drive requires no scheduled maintenance.

Warning:

The

drive

hub

and pulley assembly are

plant-adjusted

and

cannot

be

replaced in the field.

The

head

carriage assembly can be replaced in

the

field; however, any

attempt

to repair

or

clean

the

head carriage assembly may cause damage to

the

read/write head. Voltage

or

resistance checks

of

the

read/write

head

made with

the

CE

meter

may

damage

the

head and should

not

be

attempted.

NOTE:

The

type

2D

head

is

shown

only

when

it

is

necess-

ary

for

adjustments

or

removal.

SPECIAL

TOOLS

The

three

special tools needed

to

service

the

diskette drive

are stored on

the

frame of each drive. Their use

is

described

in

the

Adjustments section.

1.

The

timing pin

is

used

to

mechanically align

the

stepper

motor

shaft

and

pu

lIey.

NOTE:

The

Timing Pin may be stored on

the

diskette

drive frame

or

under

the

head cable guide. (Ref. Figure).

2.

The

track

40

feeler gauge clip

is

used

to

keep

the

gauge

in

contact

with

the

track

40

adjustment

surface.

3.

The

head carriage assembly spring

is

used

to

keep

the

head carriage against

the

feeler gauge during this

adjustment.

This spring angle

must

match

the

view as

shown

in

detail A (below) with an acceptable deviation

of

± 1.5 mm (0.060 inch).

DISKETTE

UNIT

- Service

Aid,

Special

Tools

-49-

-50-

DISKETTE

UNIT

-

Adjustments

Operator Handle Adjustment, Collet/Flat Spring Adjustment

Check

CAUTION When

a diskette drive

is

removed from its mounting, the

ground through the

AC

connector must be verified. Verify

the ground by checking for

0 ohms between the Diskette

Unit base and the diskette drive.

1.

Loosen the collet actuator

rod

screw

and

adjust the

operator handle

to

obtain a maximum of

0.1

mm

(0.004 inch) gap between

the

operator

handle and

the

diskette guide. 0

2.

Insert a diskette and with the

operator

handle open,

check for a 2 mm

(0.080 inch) gap between the collet

and a diskette. The flat spring

is

not

adjustable, and

should be replaced

to

obtain

this adjustment. 0

Screw

Collet

Diskette

Guide

o

End

Play

:~----

0.1

mm

Maximum

10.004

inchl

• •

/-------Diskette

Collet

•

Solenoid and Bail

Adjustment

CAUTION

When

a diskette drive is removed from its monnting, the

ground through the

AC

connector must be verified. Verify

the ground by checking for

0 ohms between the Diskette

Unit base and the diskette drive.

1.

Turn

the

system power off.

2. Disconnect the Diskette

Unit

AC cable from connec-

tor

8.

3.

Close

the

diskette handle.

4. While looking into

the

diskette

guide opening, loosen

the

bail lever screw. 0

For the

type

1 drive, move

the

bail lever until

the

head

load arm pad just

touches

the

head.

For the type

20

drive, insert a piece

of

paper between

the

heads and move

the

bail lever until the

two

heads

just

touch

the

paper.

5.

Observe

the

marks

on the

bail

lever

relative to the

bail

alignment edge. 0

6. For the type 1 drive, turn the bail lever one

and

one

half spaces (marks) clockwise and tighten

the

bail lever

screw.

For the

type

20

drive, turn the bail lever one space

(mark) clockwise.

7. For

the

type

1 drive,

the

gap should now be 3

to

4 mm

(0.118

to

0.159 inches) between

the

head and head

load arm. Check visually only. 0

For

the

type

20

drive,

the

gap between

the

head sur·

faces should be 2

to 3 mm

(0.079 to 0.118 inches)

check

visually only. 0

8. Load

the

diskette

and

turn

the

system power

on.

NOTE:

DC

voltage will be present

at

this time

to

activate

the head

load solenoid.

(Adjustment procedure

continued

on

next page.)

Bail

Dc:)

~

::::;")

~\.

~~B.iI

. 0

[JJ

\.il

Lever

Eyelet Crimp

Facing Out

Lever

0

Screw

DISKETTE

UNIT

- Adjustments

-51-

•

2.0

to

3.0

mm

(Type

20

drive)

10.079

to

0.118

inchl

Bail

Cable

Head Load Solenoid De-activated

-52-

DISKETTE

UNIT

- Adjustments

(Continued from preceding page.)

9. For the

type

1 drive, activate

the

solenoid by jumper-

ing from TPC04 (ground)

to

TPHLD (head load)

.•

For

the

type

2D drive, activate

the

solenoid by

jumpering from TPA07 (ground)

to

TPA08

(head

load)

.•

4 I

~

B A PTXCP

o~

1

00 00

tlDep

00

0018

[J]!

21

LEDep

o TP24V

D

TPA010

TPB010

TPC02

TPC04-~

TPF020

TPE~;;~l~P'

~

0

TPG02

0

TPH05

0

oTPLED

SCP

4 I

~

fPHLO

Control

Card

Type 1 Drive

PTXCP

5 1

yA

10

~oo

0

00

1 TPSO?

TPAD8

O

..

TPA07oTPA06

TPS92lGround)

PSo.

'0

0 •

0TPB01

TPeG 0 0 ')TPeD 1

00 00

o TPED1 o TPFDl o

TPGOl

o TPHOl o

TPLD2

o

TPLDl

~ ~

I/O

CIP

00 00

18

BA~

6 1

~

LEDep

SCP

4 1

~

P002.:! oTPDD1

Control

Card

Type 2D Drive

CAUTION

The solenoid may be hot. Let it cool before servicing.

10. Loosen

the

solenoid locking screw. 0

Warning:

Do not let the solenoid plunger and cable

tum

while

making this adjustment.

11. Turn

the

solenoid

in

the mounting bracket

to

obtain

0.30

mm

to

0.71 mm (0.012

to

0.028

inches) gap

between

the

head load arm and the head load bail.

Tighten

the

locking screw. Remove

the

jumper

.•

12. Turn

the

system power off.

13. Reconnect Diskette Unit

AC

cable.

Solenoid

Locking

Screw

o

Head Load

Solenoid

I

Plunger

Cable

Rubber

Stop

•

0.3

to

0.71 mm

10.012

to

0.028

inch)

Head Load--:----.1..

Bail Assembly

1r:!!5'Ii--r==;,--

Diskette

~Cable

Head Load Solenoid Activated

Stepper Drive Band

Adjustment

CAUTION ground through the

AC

connector must be verified. Verify

When

a diskette drive

is

removed from its mounting, the •

the ground by checking for 0 ohms between the Diskette Band Screw Unit base and the diskette drive.

1. Turn the system power off.

2.

Remove the read/write head cable connector and

guide.

3.

Place the head carriage at track

40

(timing holes

in

pulley and casting are aligned). Observe this condition

visually.

4. Loosen the three screws

that

attach

the

band to the

pulley and the carriage bracket

.•

5. Tighten the right·hand carriage bracket

screw.

and

the

band clamp

screw.

keeping the band parallel to

the edge of the

pulley.

6. Block the head carriage approximately 25.40

mm

(1.0 inch) from the casting.

7.

Use

a paper clip and the push/pull scale

to

pull the

loose end of

the

band with 1135 grams ±

10%

(2.5

pounds

±

10%)

of force, and tighten

the

left·hand carriage bracket screw. This adjustment ensures the drive band tracks

evenly and tightly over the stepper

pulley. 0

8. Carriage must move freely from track 00

to

track 76.

9.

Load

the

CE

diskette and run the alignment verifica· tion test. The display will indicate correct or incorrect alignment.

NOTE: Check the

Head

Carriage Adjustment and adjust

if

nec.essary.

Pulley

Clamp

Timing Hole

DISKETTE

UNIT

- Adjustments

-53-

Headl

arriage

Pulley

Pull Scale

Hook

Clip

Left-hand Bracket Screw

Drive band must be parallel to

pulley edge.

Carriage

Bracket

Shaft.

-54-

DISKETTE

UNIT

- Adjustments

Head

Carriage

Adjustment

CAUTION When

a diskette

driv~

is

removed from its mounting, the

ground through the

AC

connector must be verified. Verify

the ground by checking for

0 ohms between the Diskette

Unit base and the diskette drive.

1. Power

on

with

the

Memory Record

Button

pressed

to

place

the

system

in

resident

non-automatic

diagnostics.

Select

the

diskette drive

to

be adjusted (Test

0).

2. Load a diskette.

3. Execute Test L

to

place

the

stepper

motor

at Phase 0

(disregard the results of the test).

4. Remove the read/write

cable head guide.

Warning:

Do

not

allow

the

head

cable

to

touch

the

drive belt.

5. Loosen

the

stepper

motor

pulley clamp screw 0 and

rotate the pulley

to

align the timing pin holes

in

the

pulley and casting. 0

6. Insert

the

timing pin into

the

timing pin holes and

tighten

the

pulley, keeping

the

band parallel

to

the

pulley 2.03 ± 0.25 mm (0.08 ± 0.01 inches) from the casting.

0

•

Stepper

Motor

Pulley

7. Remove

the

diskette and

the

timing pin. Select and

execute Test

N.

This places the head carriage detent

at

track

40.

8. Verify timing pin hole alignment between

the

pulley

and casting. Step

the

head carriage from track

40

to

track

39

and back

to

track

40

by pressing the spacebar

twice. The stepping action

is

necessary because

of

the

torque characteristics

of

the stepper motor.

It

provides

a positive

detent

for this adjustment.

9. Loosen the carriage bracket screws. 0 Attach a

0.508

mm (0.02 inch) feeler gauge

to

the track

40

adjusting surface using

the

clip. 0

10. Install the carriage pressure spring

to

hold the carriage

against

the

feeler gauge. 0 Tighten

the

carriage

bracket screws.

0

Track

40

-\-

0.508

mm

(0.02

inches}

11. Remove the pressure spring and the feeler gauge. Press the spacebar twice

to

step the head from track

40

to

track

39

and again

to

40.

Verify

the

adjustment by

inserting the feeler gauge

between

the

adjusting surface

and pointer.

Go

= 0.483 mm (0.019 inches),

No

Go =

0.533

mm (0.021 inches).

12. Press

the

Memory Record

Button,

load

the

CE diskette,

and run the diskette

MOls.

NOTE:

To check

the

head carriage

adjustment,

perform

steps

1,7,8,

and 11.

The head carriage can be stepped

by

hand from track

40

to

track

39

and back

to

track

40

by using

the

following

alternate procedures. (Refer

to

cable

and

connector section

for

test

point

locations.)

• For

the

type

1 drive, install a jumper between TPC04

(ground) and

TH05 (disable stepper). This prevents

accidental stepping.

For the

type

20

drive, install a jumper between TPB02

(grnd) and

TH05 (disable stepper). This prevents

accidental stepping.

• For the type 1 drive, install a

second

jumper between

TPF01 (ground) and TPH04 (motor

control

0).

For the type

2D

drive, install a

second

jumper between

TPA07 (ground) and TPA04 (motor control 0).

•

For the type 1 drive, remove jumper end from TPH04

and

install it on TPH01 (motor control

3).

The

carriage

will move from track

40

to

track

39.

•

For

the

type

20

drive, remove

the

jumper end from

TPA04 and install it

on

TPA01 (motor control 3). The

carriage

will move from track

40

to

track

39.

For

the

type

1 drive, remove jumper end

from

TPH01

and

install it on TPH04. This will move

the

carriage

back

to

track

40.

For

the

type

20

drive, remove

the

jumper from TPA01

and install it on TPA04. This will move the carriage

back

to

track

40.

COVER

REMOVAL

1.

Turn the system power off.

2. On early

level

machines, remove two

screws

in

the

back

of

the

module. 0 On later

level

machines,

release

the

two

quarter-turn fasteners.

3. Slide the

top

cover

to

the rear.

4. Remove four screws holding

the

front cover. •

5. Slide the

front

cover forward.

81'"

I~

l.

"

~

8

RIGHT

DISKETTE

DRIVE

REMOVAL

CAUTION When

a diskette drive

is

removed from its mounting, the

ground through the

AC

connector must be verified. Verify

the ground by checking for

0 ohms between the Diskette

Unit base and the diskette drive.

1. Turn

the

system power off.

2. Disconnect

the

Diskette Unit

AC

cable from connectors.

3. Perform Cover Removal.

4. Loosen the

two

screws

on

the

fan mounting bracket

and slide bracket.

0

5. Loosen

the

two screws

that

hold the drive mounting

bracket

.•

6. Slide

the

drive mounting bracket, and lift

the

drive up

and

out

of

the

Diskette Unit.

DISKETTE

UNIT

- Removals/Replacements

-55-

HEAD

LOAD

BAIL

REMOVAL

CAUTION

When

a diskette drive

is

removed from its mounting, the

ground through the

AC

connector must be verified. Verify

the ground by checking for

0 ohms between the Diskette

Unit base and the diskette drive.

1. Turn

the

system power off.

2. Close

the

diskette handle.

3. Disconnect the bail actuator cable from

the

bail cable

stud.

0

4. Open

the

handle.

Warning: Damage

to

the

head can occur

if

the

pressure

pad

arm is

permitted

to

hit

the

head.

5. Observe

the

position

of

the

bail return

spring.

and

loosen

the

bail retainer

screw.

and pivot

the

bail

retainer down

.•

6. Remove

the

bail, bail return spring, and pivot rod. 0

-56-

DISKETTE

UNIT

- Removals/Replacements

DISKETTE

GUIDE

ASSEMBL Y REMOVAL

CAUTION When a diskette drive is removed from its mounting,

the

ground through the

AC

connector must be verified. Verify the ground by checking for 0 ohms between the Diskette Unit base and the diskette drive.

1.

Turn

the

system power off.

2. Close

the

diskette

handle.

3. Push

the

bail

in

slightly, and disconnect

the

bail

actuator

cable from

the

bail cable stud

.•

4. Open

the

diskette

handle.

5. Remove

the

diskette

handle

.•

6.

Remove

the

LED cable from

the

file card.

Warning: Damage to the head can occur

if

the pressure

pad

is

permitted to hit it.

7. Remove

the

four guide screws and remove

the

guide

.•

NOTE:

After replacement,

perform

the

following

adjust-

ments:

•

Operator

Handle Adjustment

• Solenoid

and

Bail Adjustment.

•

~

I

o

COLLET/FLAT

SPRING REMOVAL

CAUTION:

Do

not

attempt

to

remove

the

collet/flat spring

before removing the bail. Too much pressure

or

binding

can

damage

the

spring.

Flex

the

collet spring

only

as needed

for

removal.

Do

not

spread

the

dual heads (type

20)

beyond

the

normal position.

Do

not

allow dual heads (type

20)

to

contact

each

other.

Do

not

allow

the

pressure pad (type 1)

to

hit

the

head.

1.

Turn

the

system power off.

2. Close

the

diskette

handle.

3. Push

the

bail

in

slightlY, and disconnect

the

bail

actuator

cable from

the

bail cable stud

O.

4.

For

the

type

20

drive, place a clean piece

of

paper between

the

heads.

5.

Observe

the

position

of

the

bail return spring, and

loosen

the

bail retainer screw. Pivot

the

retainer

down

•.

6. Remove

the

bail,

the

bail

return

spring,

and

the

pivot rod

8.

DISKETTE

UNIT

- Removal/Replacements

-57-

7. Open

the

diskette handle.

9.

Turn

the

collet

actuator

rod up and

out

of

the

way.

B.

Remove

the

collet

actuator

roll

and

the pressure

rollO.

10. Remove

the

collet/flat

spring assembly

O.

-58-

DISKETTE

UNIT -Head

Load

Arm

Pad

Replacement

HEAD LOAD ARM PAD

SERVICE

WARNING

The head area can be easily damaged or

contaminated.

When changing a pressure pad, observe

the

following

precautjons~

• Ensure

all

tools are clean. Use an alcohol pad (P/N

9900679)

to

clean

the

tools.

•

Do

not

touch

the

new pressure pad

with

fingers

(use

the

pressure pad

tool

included

with

new

pressure

pad).

•

Be

careful

not

to

damage the new pressure

pad

or

loosen any

of

the

pad surface.

The

layer of adhesive

on

the

new

pad

is

very thin;

do

not

damage

the

adhe-

sive. Do not let the adhesive touch the surface of

the

pad

that will touch the diskette. Do not

use

damaged pads.

•

Do

not

make

any scratches

on

the

head load arm.

• Do

not

let

the

head load arm hit

the

read/write head.

• Move

the

head load arm

as

little as possible. The

tension spring

can

become disconnected.

HEAD

LOAD

ARM

PAD

REMOVAl/REPLACEMENT

1. Move

the

head load arm

away

from

the

read/write

head.

2.

Pull

the

worn pad

off

the

arm with tweezers

.•

3. Carefully remove any adhesive

that

remains

on

the

arm.

4. Use an alcohol pad

to

ensure

that

the

pressure pad

mounting surface

is

lint~free.

If

the

surface

is

not

completely

clean,

the

new pad may

not

seat correctly.

5. Carefully remove

the

new pad from

the

other

pads

using scissor clamp.

6. Use a knife or similar

thin

blade

to

lift

off

the

paper

cover that protects

the

adhesive layer

on

the

new pad.

7.

Place

the

new pad

on

the

head load arm.

8. Using

the

small

end

of

the

pressure pad tool, press at900

,----------

__________

...,

to

the

head load arm while

turning'

the

tool

at least

one

revolution

.•.

9. Carefully restore

the

head load arm

to

its operating

position.

BAIL

SOLENOIO

ANO

IOLER

REMOVAL

CAUTION When a diskette drive

is

removed from its mounting, the

ground through the

AC

connector must be verified. Verify the ground by checking for 0 ohms between the Diskette Unit base and the diskette drive.

1.

Turn the system power off.

2. Disconnect the

bail

actuator

cable from the bail cable

stud.

3.

Remove

the solenoid cable connector from the file

control card.

4. R.emove the AC

motor

drive belt. 0

5. Remove

the

solenoid, bracket and cable

as

a unit

.•

6. Remove

the

idler. 0

7.

Loosen the solenoid locking

setscrew

and

unscrew the

solenoid from the bracket. 0

DISKETTE

UNIT

- Removal/Replacements

-59-

-60-

DISKETTE

UNIT

- Removal/Replacements

LED

AND

PTX/FILE

CONTROL

CARD

REMOVAL

CAUTION When

a diskette drive

is

removed from its mounting, the

ground through the

AC

connector must be verified. Verify the ground by checking for 0 ohms between the Diskette Unit base and the diskette drive.

1.

Turn

the

system power off.

2. Perform cover removal.

3. Remove

the

LED and

PTX

cable connectors

.•

Note

the

cable path for replacement.

4.

Remove

the

one screw holding the

LED

in

place and

remove

the

LED

.•

5. Remove

the

diskette drive unit from

the

brackets.

6. Disconnect

the

bail

actuator

cable from

the

bail cable

stud

.•

7. Remove

the

four screws holding the diskette guide and

remove the guide.

0

8.

Remove

the

remaining cable connectors from

the

file

control card.

9. Remove the file control card from the

two

retainer

clamps

.•

10. Remove one screw holding the PTX and remove

the

PTX·O

DISKETTE

ADAPTER

CARD

REMOVAL

CAUTION When

a diskette drive

is

removed from its mounting, the

ground through the

AC

connector must be verified. Verify

the ground by checking for

0 ohms between the Diskette

Unit base and the diskette drive.

1.

Turn the system power off.

2. Remove

the

card retainer. 0

3. Remove the card. 0

DISKETTE

UNIT

- Removal/Replacements

-61-

HEAD/CARRIAGE

ASSEMBl Y REMOVAL

(Type 1 and

Type

2D

Drive)

CAUTION When

a diskette drive

is

removed from its mounting, the

gronnd through the

AC

connector must be verified. Verify

the ground by checking for

0 ohms between the Diskette

Unit base and the diskette drive.

1.

Turn the system power off.

2. Remove

the

read/write head cable from

the

file control

card and cable guide.

3. Remove the

cable guide.

Warning: The head carriage band must

not

be bent or

damaged.

4. Remove the carriage bracket from the

head

carriage

band. 0

5. Remove the two

top

guide

rod

screws

.•

6. Slide

the

top

guide rod

to

the

left and remove

the

head

carriage

assembly. 0

-62-

DISKETTE

UNIT

-

Removal/Replacements

PULLEY

AND

DRIVE

BAND

REMOVAL

CAUTION When a diskette drive

is

removed from its mounting, the

ground throngh the

AC

connector must be verified. Verify

the ground

by

checking for 0 ohms between the Diskette

Unit base and the diskette drive.

1.

Turn

the

system power off.

2.

Remove

the

head cable connector and cable guide.

Warning: The drive

band

is

easily damaged (do

not

bend,

crease

or

scratch).

3. Remove the three mounting screws

and

clamps that

attach the band

to

the

pulley and carriage

.•

4. Remove

the

stepper pulley and pulley clamp

.•

DRIVE

BAND

REPLACEMENT

1. Attach

the

end of the band with the welded adapter

to

the

adjustable end

of

the carriage bracket. 0

Leave

the screw loose.

2. Attach

the

band

to

the drive pulley with

the

screw and

clamp. Ensure

that

the band

is

parallel

to

the edge of

the

pulley (leave the screw loose)

.•

3. Attach the other end of the band

to

the

carriage

bracket. Ensure

that

the band

is

parallel

to

the carriage

bracket

.•

4. Perform stepper drive band adjustment.

STEPPER

MOTOR

REMOVAL

1.

Turn the system power off.

2.

Remove

the

head cable connector and cable guide.

3. Remove the stepper motor cable connector.

4.

Move

the read/write head

to

track 40 and insert the

timing pin into the timing

holes.

5. Loosen the stepper pulley clamp

.•

6.

While

holding the pulley • and the timing pin,

remove the four screws that mount the stepper

motor..

7. Remove

the

stepper motor.

-64-

DISKETTE

UNIT

Removal/Replacements

AC

DRIVE

MOTOR REMOVAL

1.

Turn

the

system

power

off.

2.

Disconnect

the

diskette

AC

power

cable from

connector

8.

3. Perform the cover removal.

4.

If

necessary,

perform

the

Right Diskette Drive

Removal.

5.

Disconnect

the

AC

drive

motor

power

cable G.

6. Remove

the

AC

drive

motor

belt

G .

DANGER:

The

motor

case

becomes

HOT after

continuous

use.

7. On all

domestic

machines or World

Trade

machines

(before

EC

841505),

remove

the

two

fan enclosure

mounting screws 0 and remove the fan enclosure

O.

On

World

Trade

machines

with

EC

841505

and

later, remove

the

two

mounting screws 0 and

remove

the

AC

drive

motor

O.

8.

Loosen

the

setscrew 0

then

remove

the

AC

drive

motor

pulley/fan

assembly G.

DANGER: High voltage

may

be

present

at

capacitor

terminals.

9. Remove the

two

insulator caps 0 from the

capacitor terminals.

10. Discharge the

capacitor

by

jumpering its terminals

with

the

large-bladed screwdriver.

11. Remove

the

AC drive

motor

leads 0 from

the

capacitor terminals.

12. Remove

the

AC drive

motor

capacitor

leads from

the

from

the

cable guide 0

on

the

casting.

13. Remove

the

two

insulator caps from

the

AC drive

motor

capacitor leads.

14. On

all

domestic

machines

or

World

Trade

machines

(before

EC

841505),

remove

the

two

remaining

motor

mount

screws G and remove the AC

drive

motor

O. On World

Trade

machines

with

EC

841505

and

later, skip this

step.

AC DRIVE MOTOR REPLACEMENT

To

reinstall

the

AC drive

motor,

observe

the

following

exceptions

and reverse the steps

in

the removal procedure.

1.

2.

3.

When installing the

AC

drive

motor

leads

on

the

capacitor, note the cable numbers

to

determine

which lead

goes

on

which terminal.

When installing

the

pulley/fan assembly on

the

AC

drive

motor,

ensure that the setscrew

is

centered

on

the

flat

surface

of

the

motor

shaft.

Place

the

pulley/fan

assembly on the AC drive

motor

shaft

with a gap G of

0.5

mm

±.

0.1 mm

(0.020

inch ±

0.004

inch) between the

motor

face

and

the

fan

hub.

(All domestic machines or Worl . d Trade before

EC

841505)

Note: Motor capacitor

leads go through holes

in

insulator

caps.

t

-65-

DISKETTE

UNIT

- Removals/Replacemen s

Note: Fan enclosure

is

not removable.

/

(World Trade with

EC

841505

and later)

-66-

DISKETTE

UNIT

- Removal/Replacements

CAPACITOR REMOVAL

1. Turn

the

system power off.

2. Disconnect

the

diskette

AC

power cable from

connector

8.

3.

Perform the Cover Removal.

4.

If

necessary, perform the Right Diskette prive

Removal.

5. Disconnect the

AC

drive

motor

power cable

O.

DANGER: High

voltage may be present

at

the

capacitor terminals.

6. Remove the

two

insulator caps 0 from the

capacitor terminals.

7. Discharge

the

capacitor.

by jumpering its

terminals with the large·bladed screwdriver.

8. Remove the three motor capacitor leads 0 from

the capacitor terminals.

9. Remove the

screw.

and remove

the

capacitor

bracket

assembly

O.

-67-

TABLE

OF

CONTENTS

CABLES, CONNECTORS &

TEST

POINTS

Page

Locator

Chart

(For

Use

With MAPs) .

.............

68

A C Voltage Wiring Diagram .

...................

75

AC

Voltage Grounding Path Schematic .

...........

78

Locator Chart (Point

To

Point Wiring Checks)

.......

82

-68-

CABLES, CONNECTORS,

AND

TEST POINTS - Figure 1

This section will aid

in

locating cables,

connectors,

and

test

points

in

the

IBM

Displaywriter

work

station.

Wire

termination

points

are also given for

doing

continuity

checks.

Use

the

Point

To

Point

Wiring

Locator

Chart

(Figure 11)

for

tracing

wires

and

voltages

through

the

Displaywriter

System.

When

instructed

by

MAPs

to

measure a voltage:

Refer

to

the

Locator

Chart

(Figure 1)

to

find

the

name

of

the

card

or

connector

to

be measured.

The

cards

and

connectors

are

listed

by

module.

Refer

to

the

figure

number

in

the

"Go

To

Figure"

column

for

the

location

of

the

connector

or

card

test

point

to

be measured.

Signal

Ground

is

to

be used when measuring voltages.

Frame

Ground

is

earth

ground

and

is

used

only

for elec·

trostatic

discharge grounding.

The

use

of

frame

ground

when

measuring voltages

should

only be used

when

instructed

by

MAPs.

Warning: Only use a Fluke* digital multimeter or it's

equivalent

for

all voltage readings while servicing

the

IBM

Displaywriter System. The use of

any

other

multi meter

to

check voltages may cause circuit damage.

*Trademark

of

John

Fluke

Manufacturing,

Inc.

Note:

Figures

9,

9A,

and

9B are

the

AC voltage ground-

ing

path

schematics.

These figures also

show

the

physical

locations

of

the

AC

grounds.

ELECTRONICS MODULE Connector/Card

o (Panel 1 Printer)

1 (Panel 1

Mag

Card Unit)

2 (Panel 1 - 25-Line Display Module)

3 (Panel 1 - Memory Record

Switch) 4 (Panel 1 - Communications) 5 (Panel 1 - Diskette

Signal)

6A (Panel 1 - Printer Sharing

1) 6B (Panel 1 - Printer Sharing 2) 7 (Panel 1 - Keyboard) 8 (Panel 2 - AC

Output)

9 (Panel 2 - AC Input)

10

(Diskette

DC)

11

(Communications)

12 (Large Display)

A 1 (To Distribution Board)

B1

(To Distribution Board)

C1

(To Distribution Board)

D1

(To Distribution Board)

L1

(LED Board

to

Power

Supply)

P1

(To Power Supply) P2 (To Power Supply) Sl

(To System Board) S2 (To System Board) Distribution Board

LARGE

DISPLAY Connector/Card 2 (Panel 2 - Large Display) Analog Card

Connector

Strip

CRT

Socket

Pins J 1 (Display Cable Connector) J2

(Display Cable Connector)

J3

(Display Cable Connector)

J4

(Display Cable Connector)

KEYBOARD MODULE

Go

To

Figure Connector/Card

Go

To

Figure

2

30

Connector For Pad Card

10

2

Keyboard Logic Card

10

2 2

Keyboard Cable Connector (at Logic Card)

10

Speaker

Connector

10

2

DISKETTE UNIT

2

Connector/Card

Go

To

Figure

2

61

5

2

t:S;!

5

2

63

5

3 3 3

64

5

AC

Fan Connector

..tl,tIA~

AC

cable ana

connectors

~,aA~

Diskette Adapter Card

5

3

File Control Card (Type 1 Drive) .

6

3

File Control Card (Type

20

Drive) 7

4

File Control Card

Connector

6,7

4

Head

Connector

(Type 1 Drive)

6

4 4 4

Head Connector (Type

20

Drive)

7

LED

Connector (Type 1 Drive)

6

LED

Connector (Type

2D

Drive)

7

PTX Connector (Type 1 Drive) 6

3

PTX Connector (Type

20

Drive)

7

3

Solenoid Connector (Type 1 Drive) 6

4

Solenoid

Connector

(Type

20

Drive)

7

4

Stepper Motor Connector (Type 1 Drive) 6

4

Stepper Motor Connector (Type

20

Drive)

7

LARGE

DISPLAY

Go

To

Figure

Connector/Card

Go

To

Figure

40,41

J301

(Deflection

Output

Cable)

38

37

J302

(Deflection Indicator Cable)

38

37

J501

(Video

Input

Cable)

38

37

J502

(Video

Output

Cable)

38

37

LV1

(Low

Voltage Power

Supply

Cable

39

37

LV2

(Low

Voltage Power

Supply

Cable

39

37

LV3 (Low Voltage Power

Supply

Cable

39

Locator Chart (For

Use

With MAPs)

3 - Memory Record Switch

N/O

N/C

~~--y-

Common

1

000

1

(inside panel 1 view)

CABLES, CONNECTORS,

AND

TEST POINTS -

Figure

2

-69-

O-Printer

1 -

Mag

Card Unit

2-Display

Module

5 1 5 1

1".-

:0(

l<oooo~

\00001'

\'00000000;

)0

0 0

9(

/10

0 0

<3<

)e 0 0 0 0 0

0"

'~\

d~'

/

M.,.

'"

rr

G~

O@(D)ol

o!\

D)@z

~

iJo

III

"

,_

o,

..

~.

",0"

"

I

~I~

II

_

~ooooooooooooo

00001'

,~::m::~:O¥'--tr-~-'@~

77@5

~

IJii-j~J--

20/::

0

000000

::e

O

000000

~

37

W-P00000:J(,

~

?61B1

Q

1~5Z

Female

__

\

~

6 A - Printer Sharing 1 6 B - Printer Sharing 2 7 - Keyboard Module

5 1 5 1

~OOOO~

~OOOo1'

\0000/

\0000'

g/~'

6

g/"<----.:I'

6

Female Female

Electronics Module Panel 1

Locator

8 1

t'boo

0000;;1

'\0000000/

15'"

;'g

Female

-,tJ.

CABL",S, CONNECTORS,

AND

TEST POiNTS - Figure 3

PI

1

000000000000

12

13

000000000000

24

Wiring side

of

System Power Cable

Connector

PI

•

8 -

AC

(Output)

P2

--~

Wiring Side of

5

10

Internal Distribution Cable

Connector P2

10

13 1

~OOOOOOOOOOOOY

\900000000000.{

25/'

"14

Female

1-

Ground

2 - Line

Power Supply and Panel 2 Connector Pin Locators

Male

9 -

AC

(Input)

~'

~=~'''3

1 - Ground 2 - Neutral

/Line

Fuse

11

• Connector 8

will

be labeled 12 if the Large Display

is

installed on the

system.

19~

________________________

~

37

0000000000000000000

)eO

00

0000

00 0 000

00

0

Female

Ll

Wiring Side

Sl

LJ

Sl

Wiring

Side

Sl

CABLES, CONNECTORS,

AND

TEST POINTS - Figure 4 ·71·

S2

11000.00001

8

Wiring Side

o

~

.£.(;J.'"f'l" g 'o:J.!il.'"f'l" g

'N'0'""1"]"g

,~,[iJ,"'I-]

..

~

............

............ . ......................

.

E::;;J

~

.£.(;J.['T-l" A

'o:J'@'rrJ" A 'N'(;)'f"F]"

g

'!-'-'-'-'0'rrl"

~

................................................

~

E:::iil

~

·£·GJ·O·· A ·o:J·(;)·o·· A ·N·[iJ·D··g

·~·[iJ·D··

~

••••••••••••••••••••••••••••••••••••••••••••••

0'

~

~ ~

~

'£'GJ'~"

A

'o:J'GJ'~"

A

·N·GJ.~

..

g

.~.GJ.~

..

~

................................................

~

E:::iil

~

·.;c::;:·"'·ETl·· g ·e.D·"'·ETl·· g

'N'''''l:3:]''

g

'~'''''l:3:]''

~

................................................

~

Distribution Board

13

24

Distribution Board Connector

L1, S1, S2, and Distribution Board Connector Pin Locators

F

Memory

Extender

Card

E

Memory

Card

0

D

Display

Adapter

Card

C

Printer

Sharing

Card

0

B

System

Card

A

Telecommunications Card

-72-

CABLES, CONNECTORS,

AND

TEST POINTS - Figure 5

';o~~_~~o"

Pin 13 Wiring Side

24

84

Diskette Adapter

Card

Connector

Locators

TPH010 TPH020

TPH030

TPH040

~

1

~

SMCP

06

TPAMP20

TPAMP

10

o

c:i

TPF

01

TPC010 0

TPE01

TPD01

0 oTPG01

TPC020 oTPE02

TPC03 0 0 TPE03

TPB010

TPA010 0 TPC04

oTPF02

~~H

D

~6

D

OTPG02

°TPH05

TPHLD 0

TPLEDO

SC~~

4~

1

~

TP24V 0

o

I/OCP

Aoooooooooooooooooo

4~

BO

0000000000000000

PTXCP 1

1B

PTXCP - PTX Connector

Pins

BA

fOol

1

~2

LEDCP

liD

CP

- File Control Card Connector

Pins

LEDCP - LED Connector

Pins

SCP

- Solenoid Connector

Pins

HCP -Head

Connector

Pins

SMCP

- Stepper Motor Connector

Pins

Type 1 Drive

File

Control Card Test Points and Connector

Locators

C')

l>

to

rm

,en

C')

o

z

Z

m

C')

-I

o

:ll

,en

l>

Z

C

-I

m

!!l

Q

z

CiI

I

"T1

ciS'

I:

0;

CD

TPA01

--1--0

TPA02--+--0 TPA03:--+--o

TPA04--+--o

TPA05-r--

0

TPBO

1

TPB02

TPB03

0 0

0

oTPD01

TPA06

°00TPC01

TPB04 TPB05

TPAO

7

ITPB06

TPAO

S

TPA09 TPA10

o

OTPC02

o 0 TPC03

0

OTPD02

1~

SMCP

6

DOTPCTO

oTPCT1 0

'~

D

I!J

TH

8

I!J I!J

III

SI!J

1

HCP

14

D~i~~g~

----0

~i~~g1

1

00

W/

1S'\.2l

f---o~0'PTPB07

~i~tg~

fa')

0_

LEDCP

PTXCP

o

1000000000000

OOOOOOlA

5 10

0000000000000

ooolB

I/O

CP

PTXCP - PTX Connector Pins I/O

CP

- File Control Card Connector Pins

LEDCP

-

LED

Connector Pins

SCP

- Solenoid Connector Pins

HCP

- Head

Connector

Pins

SMCP

-

Stepper

Motor Connector Pins

Type

2D

Drive

° 6

File Control

Card

Test Points and Connector

Locators

(')

»

!XI

r

m

.VI

(')

o

z

Z

m

(')

d

:II

.VI

»

Z

o

-I

m

~

C3

z

Cil

I

."

ciS'

C

Cil

-..I

Pin 1

Locator

~

1 2 3

Pin 1

Locator

~§8}

Wiring Side

Line

To

Fan

Ground

Neutral

To

Drive

Ground

Line

Pin 1

Locator

2

3

\

~

Line

~

GrnIYel

Neutral

'--

1

r--

2 3 4

"

5

~

.....

-,

6

Lj-.d:-

I -

I

/

''13

2

\lffi

5

Wiring Side

~

1 I Neutral

I Ground

"

Line

:::

'---"'-

Neutral

(Grn/Yel)

Ground

I

Line

~

CABLES, CONNECTORS,

AND

TEST POINTS - Figure 8

-15-

2

Wiring Side

1

r--

2 3 4

Neutral

5

Ground

To

Drive

~

Line

6

~

AC

VOLTAGE

CHECK

Line

To

Gound

Read

AC

Voltage

~

Line

To

Neutral

Read

AC Voltage

Diskette

Unit

G G

Ground

To

Neutral

o

Volts

A C Cable

A

L

1-

L

~

Cable Plug

Left

or

Right

Drive Conn.

Fan

Conn.

Description

Pin 4

Pin 3

Neutral

Pin 5 Pin 2

Ground

Pin 6

Pin 1

Line

Diskette Drive

AC

Connectors -

AC

Wiring Diagram

-76-

CABLES, CONNECTORS,

AND

TEST POINTS - Figure SA

~{~

<:J

3

4 5

.~

{~

..J

8

9

10

~{:~

z 13

14 15

Te

..-

....

rminal

Block

r----

1 2

3

N

4

-

T

G

5

L

6

~

N

-

J

r7-

('

1-

Diskette

Unit

--

-

~

.~

Pin 1 Locator

---

1

Locator

5

I

"

Neutral

[)

1

j;'b~n

/

~/

0

>-

~dl-

0

.....

Line

,

//

Wiri

-

/

ng

Side

-

~

L

Line

,

1

G

2

Ground

c

'"

u.

/

I

/

N

-?

Neutral

;-

3

.-

-

r----

1

2

3

N " 4

G

,

5

~

6

-

N

~

G

(Grn/Yel)

G-

L

~

o

I-

/

~

2i

Neutral 0

I-

Ground

Line

AC

Cable Cable Plug

Wiring Side

AC

VOLTAGE

CHECK

Line

To

Ground

Read

AC Voltaae

Line

To

Neutral

Read

AC Voltaae

Ground

To

Neutral o Volts

Terminal Block Positions

Left

or

Right

Drive Conn.

Pin 6 7 8 9

Pin 6

Pin 1

234

Pin 5

11

12

13 14 Pin 4

5.10

Diskette Drive

AC

Connectors -

AC

Wiring Diagram (Wt

100/120

VAC

50

Hz Power

Supply)

Fan

Conn.

Description

1

Line

Pin 2

Ground

3

Neutral Separator

§{~

e 3

(!l

4

5

.~!~

...J

8

D

10

e(~~

~

13

14

15

...-

Te

rminal

Block

r-

N

1

2

L

3

-

4

T

G

....

5

6

-

l

r+-

J

(\

1..

'-

-

Diskette

Unit

AC Cable

r-

....

Pin 1

Locator

--

---

Neutral

5

I

Pin 1

.....

w

Line

>

.....

0

1

0

Ground

I-

0

~g~~

/

-

L

.-

1

G

~

2

N

~

3

'--

N G

(GrnNel)

L

/

Wiri

/

ng

Side

/

~

Line

Groun

c

d

~

ll.

....

Neutral

/

~

/

-

/

-

,.Ii

~

1

Neutral

2

L

....

,

3

Line

4

G

5

Ground

6

'----

~

G-

~

Cable Plug

o

f-

CABLES, CONNECTORS,

AND

TEST POINTS - Figure 8B

-71-

Wiring Side

AC

VOLTAGE

CHECK

Line

To

Ground

Read

AC

Volta

e

Line

To

Neutral Read

AC

Voltage

Ground

To

Neutral 0

Volts

Terminal Block Positions

Left

or

Right

Drive

Conn.

Fan Conn.

Description

Pin 6 7 8 9 Pin 3

Pin 1

Line

Pin 1

234

Pin 5

Pin 2

Ground

11

12

13114

Pin 1

Pin 3 Neutral

Pin 5 10

Separator

Diskette Drive

AC

Connectors -

AC

Wiring

Diagram (Wt 200/240

VAC

50/60

Hz Power Supply)

-78-

CABLE.

. S CONNECTORS

AND

TEST POINTS -

Figure

9

3

Neutral

4

To

Drive

Ground

5

Line

6

/

Pin 1 Locator

2 /

5

Wirin Side

2

Wiring Side

5

I

/

3

Neutral

'"

4

>

Ground

0

5

6

Line

0

f--

Neutral

Diskette

Unit

Line

AC

Cable

Cable Plug

d

"

Path Schematic

D

"

AC

Voltage Craun

mg

Diskette

Ylve

{i

~

{~

..J

8

9

10

{

11

12

13

14

15

'"

T erminal Block

T

l

r+-

..L

=

-

N

....

G

L

.-

~

(

Diskette

Unit

AC

Cable

Pin 1 Locator

--

,--

1

2

Pin 1 L

Deator

w

3

>

1

Neutral

[)

4

....

0

I

~§~

5

6

.-

Ground

I-

0

Line

I

.-

//

Wiri

~

r----

,--!-

L

--"

1

....

Line

ng Side

I

G

....

.-

2

Ground

c /

~

I

.::

I

N

r-

N G

L

~

3

Neutral

"---

,--

1

2

3

N

4

I

G

5

I

cl

f7

6

~

IGrn/Yel}

G-

~

Cable

Plug

I

Neutral

Ground

Line

5

,

I

CABLES, CONNECTORS, AND TEST POINTS -

Figure

9A

-79-

Diskette Drive

AC

Voltage Grounding Path Schematic - World Trade

100/120

VAC

-80-

CABLES, CONNECTORS,

AND

TEST POINTS -

Figure

9B

~{~

l5

3

4 5

.~

{~

-'

8

9

10

{

~~

13

14 15

...-

T ermmal Block

T

N

'------

~

N

r--

L

.-

G ,

~

I

)

[1

Diskette

Unit

AC

Cable

Pin 1

Locator

---

--

r-

1

Neutral

;'

2

Pin 1 L

Line

w

3

>

4

.-

0

1

0

5

.-

Ground

I-

ig!~/

a

6

L--

-

L

~

1

G

.....

2

N

~

r-

3

-

N

G

IGrn/Ye11

L

,./

Wiri

~

Line

Ground

Neutral

'---

~

.----

f-7

1 2

L

3

4

G

~

5

6

~

'G-

~

Cable Plug

n9

Side

/

;j

/

~

/

Neutral

Line

Ground

2

Diskette Drive

AC

Voltage Grounding Path Schematic - World Trade

200/240

VAC

CABLES, CONNECTORS,

AND

TEST POINTS - Figure 10

-81-

Pin 14

~'f0oooooooooot

1

Key

Keyboard Cable Connector lat Logic Card)

14~-

Keyboard Cable Connector lat Logic Card)

","00'"

Co",

0."

~k

"'

'''"m~"

''',

",00""

""'""'

..

""

""'

"'"OO~,

m~~":

Sense Lines

-1-4

and 27-30

~

l.!!

Drive Lines - 10 -

21

Speaker Connector

Ground - 5

- 9 and 22 -

26

Keyboard Logic

Card

and Speaker Connector Pin Locators

~~A02

--c::::J.-

~

I

~

SPEAKER CONNECTOR

-82-

CABLES, CONNECTORS,

AND

TEST POINTS - Figure

11

The

Point

to

Point

Wiring

locator

Chart

(Figure

11)

will

aid service

personnel

locate

connector

wires

when

doing

continuity

checks,

tracing

wires in cables,

and

checking

voltages.

The

connectors

and

cards are listed

by

module.

Printer

Sharing

cables

and

connectors

are listed

separately.

Signal

Ground

is

to

be used

when

measuring

voltages.

Frame

Ground

is

earth

ground

and

is

used

only

for

elec-

trostatic

discharge

grounding.

The

use

of

frame

ground

when

measuring voltages

should

only

be used

when

instructed

by

MAPs.

Warning:

Only

use a

Fluke'

digital

multimeter

or

it's

equivalent

for

all voltage readings

while

servicing

the

IBM

Displaywriter

System.

The

use

of

any

other

multimeter

to

check

voltages

may

cause

circuit

damage.

*Trademark

of

John

Fluke

Manufacturing,

Inc,

ELECTRONICS

MODULE

Connector/Card

o (Panel 1 - Printer)

1 (Panel 1 -

Mag

Card Unit)

2 (Panel 1

25·line

Display Module)

3 (Panel 1 - Memory

Record

Switch)

4 (Panel 1 -

Communications) 5 (Panel 1 - Diskette Signal) 6A

(Panel 1 -

Printer

Sharing

1)

6B (Panel 1 - Printer

Sharing

2) 7 (Panel 1 - Keyboard) 8 (Panel 2 - AC

Output)

10

(Panel 2 - Diskette DC)

11

(Panel 2 -

Communications)

12

(Panel 2 -

large

Display) A1 B1 C1 01

II

P1 P2 Sl S2 Distribution

Board

lARGE

DISPLAY Connector/Card 2 (Panel 1 -

large

Display)

Analog Card

Connector

Strip

CRT

Socket

Pins J1 J2 J3 J4

KEYBOARD MODULE

Go

To

Figure

23

Connector/Card

Keyboard Cable Connector (at

logic

Card)

23

DISKETTE UNIT

24

Connector/Card

22

61

24

62

25

63/64

36

AC

Fan Connector

36 26

AC Cable and Connectors

File Control Card (Type 1 Drive) File Control Card (Type

20

Drive)

3

Fi

Ie

Control Card Connector

16

Head Connector (Type 1 Drive)

16

Head Connector (Type

20

Drive).

3

lED

Connector (Type 1 Drive)

18

lED

Connector (Type

20

Drive)

19 20

PTX Connector (Type 1 Drive)

PTX

Connector

Type

20

Drive)

Solenoid Connector

Type

1 Drive

20

Solenoid Connector (Type

20

Drive

15

Stepper Motor Connector (Type 1 Drive)

14

Stepper Motor Connector (Type

20

Drive)

15 21 22 17

LARGE DISPLAY

Go

To

Figure

Connector/Card

40,41

J301

37

J302

37

J501

37,41

J502

37

lV1

37

lV2

37,41

lV3

Point to Point

Wiring

Locator Chart

Go

To

Figure

35

Go

To

Figure

27 28 29

8,

8A,

86

8,

8A,

86 31 33 30 31,32 33,34 31,32 33,34 31,32 33,34 Cl1,

Cl2 33,34 31,32 33,34

Go

To

Figure 38 38

38,41

38 39 39 39

25-Line Display

Keyboard

Diskette

Unit

Left Drive

rr-

C

::;:;

I

ACMotor

L

__

.J I

I I

I Right Drive I

I (Optional) I

~

____

-1

Diskette

Adapter

Card

Display Cable

Keyboard Cable

-Panel

1

0

4

6A

6B

7

CABLES, CONNECTORS,

AND

TEST POINTS - Figure

12

-83-

Electronics Module

Internal

Distribution Cable

~

o

'"

"

o

.;:;

::>

.0

.~

Ci

I

Electronics I

Package I

I

I I

I

____

J

I

Power Supply

Power Supply Distribution Schematic (for system with 25-Line display)

-84-

CABLES, CONNECTORS,

AND

TEST POINTS -

Figure

13

Secondary

Work

Station

Secondary

Work

Station

Keyboard

Printer

Mag

Card

Display

Printer Cable

Mag

Card

Unit

Cable

Display Cable

Memory

Record

Switch

EIA-CCITT

Cable

Diskette Unit

Signal Cable

Bl

Printer Sharing Cable

o

Printer

Sharing

Cable

Keyboard Cable

Electronics

Module

-Panel

1

Internal

Distribution

Cable *

B1B

Internal

Distribution

Cable *

Internal Distribution Cable *

Dl

Bl-A

Internal

Communication

Adapter

Cable

A2

Internal Diskette Signal Cable

Internal Printer

Sharing

Cable

Cl

Internal

Distribution

Cable *

*

The

internal distribution cable

has

several connectors.

Each

connector

plugs

into a different

position.

Signal Distribution Schematic

CABLES, CONNECTORS,

AND

TEST POINTS - Figure 14

-85-

Power Supply Connector

P1

Pl

Electronics Module

1:

lO

0 0 0 0 0 0 0 0 0 0

OJ

12

-Panel

1

,--------

Note: All connectors

are

shown

from the wiring

side.

13

0 0 0 0 0 0 0 0 0 0 0 0 24

0

1

Al

12

1

~

••

~!*~

2 3

~

0

-'"

4

CD

i;l

c

"-

0

~

13

24

5

.

.,

::>

'1'

..Cl

0

6A

rf~

B

P1

Conn/Pin Identification

'"

68

LU

1

Al-8

-12.0

VDC

7

2

Al-13

-5.0

VDC

3

- -

4

Al-16

Signal Ground

--------

5

Al-18

SiQnal

Ground

6

Al-17

Signal Ground

7

-

L

1

c;::I-n-r'-t

8

- -

~'pj

J

9

-

Power Supply

10

Al-22

+5.0

VDC

~

11

Al-23

+5.0

VDC

12

Al-24

+5.0

VDC

13

Al-21

+5.0

VDC

(POR)

14

Al-15

+8.5

VDC

15

Al-20

+12.0

VDC

16

-

17

Al-4

Signal Ground

18

Al-5

Sl!Lnal

Ground

19

Al-6

SiQnal

Ground

20

Al-3

Signal Ground

21

Al-9

+5.0

VDC

22

Al-l0

+5.0 VDC

23

Al-ll

+5.0VDC

24

Al-12

+5.0 VDC

-86-

CABLES, CONNECTORS,

AND

TEST POINTS - Figure

15

Power Supply Connectors

P2,

and L 1.

Note:

All

Panel

1 Connectors

are

shown

form

the outside

rear

view

of

the Electronics Module. All other connectors

are

shown from the wiring side.

P2

1 5

6 10

'-----'

1 8

~oooooooi

\ooooooo{

7

8,

-.(1

9

A.

'''15

Male

tbooooooo1

'\0000009(

15/\

~

9

Female

Keyboard

Cable

Connector (at Logic Card)

14-+0eOOOOOOOOOOOO.!.-Pin

1

'-\

I

Key

P2

Conn/Pin Conn/Pin

Identification

1

- -

-

2

-

3

7-11 Lgc

Cd-2

+5.0 VDC

4

7-9

Lac

Cd-l

+8.5 VDC

5

- -

-

6

2-4

-

Signal Ground

7

2-2

-

Sianal Ground

8

2-7

-

+5.0 VDC

9

- - -

10

2-3

-

+12.0VDC

Panell_

Display

Cable

Keyboard

Cable

Ll

L1

Identification

1

LED

C (Thermal)

2

LED B (Over Current)

3

LED A (Over/Under

Voltage)

4

Key

5

+16 VDC

0

2

3

4

5

6A

6B

Electronics Module

~

Internal

0

'"

Distribution

Cable

"

0

.'"

:J

:§

~

(5

Power Supply

I

I I

I

I I

I

____

J

I

Power Supply Connectors

11

and

10.

Note:

All

Panel

2 Connectors

are

shown from the outside

rear

view

of

the Electronics Module.

All

other connectors

are

shown from the wiring

side.

11

19~

______________________

~

0000000000000000000

~OOOOOOOOOOOOOOOO

37

Female

11

Identification

11

Identification

1

Signal

Ground

2

Sianal

Ground

3

Signal

Ground

4

Sianal

Ground

19

-12VDC

20

Signal

Ground

21

Sianal

Ground

22

Signal

Ground

5

Signal

Ground

6

Signal

Ground

7

Signal

Ground

8

Signal

Ground

9

+12VDC

10

+5.0VDC

11

+5.0VDC

12

+5.0VDC

13

+5.0VDC

14

+5.0VDC

15

+5.0VDC

23

Sianal

Ground

24

Signal

Ground

25

Signal

Ground

26

Signal

Ground

27

+12.0VDC

28

+5.0VDC

29

+5.0VDC

30

+5.0VDC

~1

+5.0VDC

32

+5.0VDC

33

+5.0VDC

16

+8.5VDC

17

+8.5VDC

18

-5.0 VDC

J4

+6.5VDC

~

+8.5VDc-

36

-5.0VDC

--g

-f2:l)VDC

CABLES, CONNECTORS,

AND

TEST POINTS - Figure 16

-87-

Diskette

U·

nit

Diskette Adapter

Card

i n

82

10

13 1

,ooooooooooo~

0000000000001

25'\

-''--14

Female

10 Conn/Pin

Identification

1 B2·13

+5.0VDC 2 B2-14 +5.0 VDC 3

B2-1

+5.0 VDC 4

B2-2

+5.0 VDC 5

B2-10 +12.0 VDC

6

B2-6

+18.0 VDC

(POR

DIS)

7 B2-15

Sianal

Ground

8 B2-16

Sianal

Ground

9

B2-17

Sianal

Ground

10

B2-18

Signal

Ground

11

B2-19

Signal

Ground

12

B2-5

-5.0

VDC

Power Supply

0;_

"fj----'~."

DC

Cable

11

r-

r Communications J

10 Conn/Pin

Identification

13

B2-12

+24.0 VDC

14 B2-3

+5.0VDC

15 -

16

-

17

-

18 19 -

-

20

B2-20

Signal

Ground

21

B2-21

Signal Ground

22

-

23 -

-

24

-

25

-88-

CABLES, CONNECTORS,

AND

TEST POINTS - Figure

17

Distribution Board

Voltage

I F4

F3 F2

F1

Memory Extender Card (Position F)

F4

F3

F2

F1

I

E4

E3

E2

E1

Memory Card (position

E)

6

Ground 6

Ground

6 Ground 6

Ground

11

+5 VDC

11

+5

VDC

11

+5 VDC

11

+5

VDC

ID4

D3 D2

D1

Display Adapter Card (position

D)

13

-5

VDC 13

-5

VDC

IC4

C3

C2

C1

Printer Sharing Card (Position

C)

15

+8.5

VDC 15 +8.5 VDC

I

B4

B3

B2 System

Card (Position

B)

20 +12 VDC

1A4

A3 A2

E4

E3

E2

E1

Communications Card (Position A)

6

Ground

6

Ground

6

Ground

6 Ground

11

+5 VDC

11

+5 VDC

11

+5 VDC

11

+5

VDC

~

'f''''''1']''

g 'E..:a'G),"l']" g

'N''''''1']''

g

'!'-'-'-''''''1']''

~

13

-5

VDC

13

-5

VDC

15 +8.5 VDC 15 +8.5 VDC

................................................

=

20 +12 VDC

~

'f''''rr'l'"

A

'E..:a·G,rr'l·' A 'N,G)'rrl'"

A

'!'-'-'-'El'rr!"

~

D4

D3

D2

01

................................................

6 Ground 6

Ground

6

Ground

6

Ground

0

.=

= =

=

0

11

+5 VDC

11

+5 VOC

11

+5 VDC

11

+5 VDC

~

'f''''(::::'J'' £ 'E..:a''''(::::'J'' A 'N'''''(::::'J''

A '!'-'-'-'''''(::::'J''

~

13

-5

VDC

................................................

=

= =

15

+8.5 VDC

~

'f''''P)''

A

'E..:a'''''I:':)'' A 'N'El'I:':)"

A

'~'''''I:':)''~

20

+12 VDC

................................................

C4

C3

C2

C1

0

= =

0

6

Ground 6 Ground 6

Ground

6

Ground

~

'.;E·"·rn··

g

'Uj'''''rn''

g

'['\;j'''''rn''

g

'~'8'rn~

11

+5 VDC

11

+5 VDC

11

+5 VDC

11

+5

VDC

................................................

=

13

-5

VDC

~

'.:E'Gl'::E:)"

g 'E..Jj'Gl'::E:)·' g

'['\;j'G'E"

g

'~'Gl'E"

~

15 +8.5 VDC

................................................

B4

B3

B2

B1

6

Ground

6

Ground

6

Ground

6

Ground

11

+5 VDC

11

+5 VOC

11

+5 VDC

11

+5 VDC

A4 A3

A2

Pin 1

12

Voltage

Voltaae

~

Wiring Side

~

6

Ground

6

Ground 3 Ground 13

5 VDC

4 Ground 15

+8.5 VDC

m#e_~~~

5

Ground 16

Ground

6 Ground

17

Ground

8

-12

VDC 18 Ground

9 +5 VDC

20 +12

VDC

Pin 13

Distribution Board Connector

24

10 +5 VDC

22

+5 VDC

11

+5 VDC

23 +5 VDC

12 +5 VDC

24 +5 VDC

Note: All ground

pins

on

the Distribution Board are signal ground.

Distribution Board and Distribution Board Connectors

CABLES, CONNECTORS,

AND

TEST POINTS - Figure 18

-89-

Distribution Board Connector A 1

Electronics Module

Note:

All

connectors are shown from the wiring side.

,-'

--

----

Al

0

Electronics

1

12

PI

1

Package

~~i!~~~;~

1.\00000000

00

0~112

2

13

000000000000

24

3

"E

..

0

4

CD

"

13

24

5

0

'P

"

6A

:g

Conn/Pin

A~

1;;

Al

Identification

6S

i5

1 -

-

7

2

- -

System Power

3

Pl-20

Signal

Ground Cable

4

Pl-17

Signal

Ground

--------

5

Pl-IB

Signal Ground

6

Pl-19

Signal Ground

L1Q...fI-f"'"-t

7

-

B

Pl-l

-12.0

VDC

~Pl

9

Pl-21

+5.0VDC

Power Supply

~

10

Pl-22

+5.0VDC

11

Pl-23

+5.0VDC

12

Pl-24

+5.0VDC

13

Pl-2

-5.0VDC

14

-

15

Pl-14

+B.5VDC

16

Pl-4

Signal Ground

17

Pl-6

Sianal Ground

lB

Pl-5

Signal Ground

19

-

20

Pl-15

+12.0VDC

21

Pl-13

POR

22

Pl-l0

+5.0VDC

23

PI-II

+5.0VDC

24

Pl-12

+5.0VDC

-90-

CABLES, CONNECTORS,

AND

TEST POINTS - Figure

19

Distribution

Board

Connector

B1.

Note:

All

Panel 1 Connectors

are

shown

from

the

outside

rear view

of

the

Electronics Module. All

other

connectors

are shown

from

the

wiring side.

The Memory Record

Switch

is

shown from

the

inside

of

Panel 1.

Printer

I

Printer Cable

I

l.j

0

Mag

Card

1

I

f

Unit

Cable

rtt--

Mag

Card

2

Memory

Record

SWitCh/

t1

Memory

Record

Switch

A

N/O

N/C'C"""".~Common

,0001

Electronics

Module

81

8

7

8 1

tboooooo;n

'\0000000/

15/\

/'9

Female

-'

- - - -

--

Electronics

Package

~

81r

0

'"

c

.Q

Internal

Distribution

L

::

6A

.0

';:

Cable

.~

Keyboard

68

0

Cable

~

"i

I

Logic Card

I

~------

o

5 1

\Oooo~

",000'3<

9'

'-----J

6

Female

1

5 1

,ooood?

/<000

Q/

9

"'----J'6

Female

Keyboard Cable Connector

(at Logic

Card)

14

~oooooooooooot

Pin1

Key

B1

Conn/Pin Conn/Pin

Identification

1

7-8

Lgc

Cd-9

Data Strobe

2

7-6

Lgc

Cd-10

Tone (Speaker)

3

7-5

Lgc

Cd-3

Click

(Speaker)

4

7-3

Lgc

Cd-7

Serfal Data

Clock

5

7-1

Lgc

Cd-8

Serial Data

6

MRS'

N/O

-

Signal Ground

7

0-9

-

Data Set Ready

8

0-3

-

Receive High

9

0-4

-

Receive

Low

10

0-1

-

Transmit High

11

-

12

0-2

-

Transmit

Low

13

-

14

7-7

Lgc

Cd-5

Keyboard Acknowledge

15

MRS'

-

System

Dump

Common

16

7-4

LQC

Cd-12

Power·On·Reset

17

-

18

-

19

1-9

-

Data Set Ready

20

-

21

1-3

-

Receive High

22

1-4

-

Receive

Low

23

1-1

-

Transmit

High

24

1-2

-

Transmit

Low

•

Memory

Record Switch

Distribution Board Connectors

C1

and

01.

Note:

All

Panel

1 Connectors

are

shown

from

the outside

rear

view

of

the Electronics Module. All other connectors

are

shown from the wiring side.

A

81

B

C1

Conn/Pin

-

Identification Conn/Pin Conn/Pin

7

6A-9*

Data

Set

Ready

8

6A-3

Receive

High

0-1

81-10

9

6A-4

Receive

Low

0-2

81-12

10

6A-1

Transmit High

0-3

B1-8

12

6A-2

Transmit

Low

0-4

81-9

19

6B-9"

Data

Set

Ready

21

68-3

Receive

High

0-1

B1-10

22

68-4

Receive

Low

0-2

B1-12

23 6B-1 Transmit High

0-3

81-8

24

68-2

Transmit Low

0-4

81-9

6A, 68, 0

5 1

~OOOO

Of

\OOO9(

9/'~

6

Female

Identification

Transmit High

Transmit

Low

Receive

High

Receive Low

Transmit High

Transmit

Low

Receive

High

Receive Low

*

On

Connector

6A

and

68,

Pins

7,

8,

and 9 are

strapped together.

On

Connector

6A

and

68,

Pins 5 and 6 are

Frame Ground.

Note: The Receive

and

Transmit Signals

change

names

at

Panel

1,

Connector

O.

Secondary Work

Station

Secondary Work

Station

CABLES, CONNECTORS,

AND

TEST POINTS - Figure 20

-91-

Electronics Module

Display

l DisplayCable

J

~Panel1

o

r-r-

--l

I

1 Internal Distribution

Cable

D1r

L~

3 a

~

printerSharing

4 §

B 1 Cable 5

''5

L

Internal Printer

~

M Sharing

Cable

C1

r g

b-!~======::::=:::===:::':jL

I Printer Sharing

[""

68

r,

Cable

'I

7

t---

B1

I

g,1

~I

.~

I

2 I

~

wi

I

t---

t-------i

j

'--~~

I I

1 01

12

~

••

~~~

13

24

01

Conn/Pin

Identification

1

2-10

Video

2 2-11

Brightness

3

2-12

Vertical

2

1\._

8

'\Ooooooooi

)eooooo~<

9

15

Male

4

2-13

Horizontal Drive

5

6

2-15

Signal Ground

-92-

CABLES, CONNECTORS,

AND

TEST POINTS - Figure

21

8ystem Card Connector 81.

Electronics Module

~Panell

,.r- -

I

Note:

All

Panel 1 Connectors are shown from the outside

0

rear view

of

the Electronics Module.

All

other connectors

I

are shown from the wiring side.

1

Sl

Diskette Unit

2

I

I~~

~tm

I

I Diskette Unit

Signal

Cable

Q)

I

J3

1:

Cl

U

'"

Bl

'"

"'"

I

0

"

WIlE]

4

'"

Internal Diskette

c:

D-

O 5

Signal Cable

0

!3

I

'~~~~;~

.

.,

."

:J

6A

.0

e

1

1 5 19

.'"

tl

~

Q)

~ooooooooooooooooo~

6B

i5

iii

1

/~oooooooooooooooo

,

7

I

20

Male

37

13 24

S2

S1

1

81

iconn/Pin

Conn/Pin

Identificetion

81

Conn/Pin

Identification

~-O9:

1

- - -

23 -

-

I

2

24 -

-

3 - - -

25

-

4

- - -

26 -

-

5

5-5

-

Address Bit 8

27

5-34

Bl-9

Data

Bus

Bit 6

6

5-20

-

DMA

Request Receive

28

5-1

-

DMA

Acknowledge Receive

7

-

- -

29

5-4

5-13

-

Twisted Pair Ground

8

5-22

-

DMA

Request Transmit

30

5-19

Bl-24

Data

Bus

Bit 1

9

5-36

Bl-ll

Data

Bus

Bit 2

31

5-35

Bl-l0

Data

Bus

Bit 4

10

5-37

Bl-12

Data

Bus

Bit 0

32

5-18

Bl-23

Data

Bus

Bit 3

1.1

5-27

Bl-'2 Interrupt 4

33

5-7

-

Interrupt 7

12

5-26

-

Interrupt 1

34

5-10

Bl-15

Diskette Ready

13

5-29

Bl-4

DMA

Request

35

5-11

Bl-16

DMA

Acknowledge

14

5-30

Reset

36

5-12

Bl-17

Diskette Select

15

5-31

Bl-6

I/O

Read

37

5-9

Bl-14

I/O

Write

<

16

5-32

Bl-7

Address Bit 4

3B

5-14

Bl-18

Address Bit 3

17

- - -

39

5-15

Bl-20

Address Bit 1

18

- - -

40

5-16

Bl-21

Data

Bus

Bit 7

19

- - -

41

5-17

Bl-22

Data

Bus

Bit 5

20

5-8

-

Select

42

5-28

Bl-3

Terminal Count

21

5-33

Bl-B

Address Bit 2

43 5-21

-

DMA

Acknowledge Transmit

i

22

44

-

System Card Connector S2 and Panel 2 Connector 3.

Note:

All

connectors

are

shown from the wiring side.

The Memory Record Switch

is

shown from

the

inside

of

Panel

1.

S2

Identification

1

-

2

LED

D (Error)

3

LED

E (Error)

4

Key

3

5

LED

F (Error)

6

LED

G (Error)

N/C

7

LED

H (Error)

N/O

8 +5.0

VDC

Common

LED

Board

Conn/Pin Identification

81-6

Signal Ground

B1-15

SYstem

DurTlQ.

CABLES, CONNECTORS,

AND

TEST

POINTS - Figure

22

-93-

-Panel

1

o

Electronics Module

r-

____

J

Electronics I

Package

2 Internal Distribution

~

l'

Memory Record

Switch-

.-c:)-;3.-----"C"-ab"'I,,,e------1

L

~

Memory

Record

Switch

N/O

N/C

'{"-l~common

1000,

4

'"

<:

o

5

~

.0

6A

~

68

5

7

I

LED

Assembly S2

S1

I

Cable

'-

OOJ

I I

'-T

I

i

I

LED

Assembly

A

B1

I

...

,

·94· CABLES, CONNECTORS,

AND

TEST POINTS - Figure 23

Panel 1

Connectors 0 and

1.

Note:

All Panel 1

Connectors

are

shown

from

the

outside

rear view

of

the

Electronics Module. All

other

connectors

are shown

from

the wiring side.

0

2 3 4 5 6 7 B' 9"

0,1

5 1

\OOOO~

9/;>

0 0

9(6

Female

Conn/Pin

Identification

81-10

Transmit

High

81-12

Transmit

Low

81-B

Receive High

81-9

Receive Low

1-5

Frame

Ground

1-6

Frame Ground

Data

Set

Ready

Data

Set

Ready

81-7

Data

Set

Readv

,

Strap

A

81

B

Conn/Pin

1

81-23

2

81-24

3

81-21

4

81-22

5'

0-5

6'

0-6 7"' B*' 9**

81-19

*

Ring

Terminal

**

Strap

Electronics Module

I-Panel

1

I

Printer Cable 0 Internal Distribution

~~p~ri~n~te~r~1:

;~~~~~~

r-,

Cable

L

Mag

Card I

Mag

Card

Unit

Cable

fl-..J

Identification

Transmit

High

T ransm it Low

Receive High Receive Low Frame

Ground

Frame

Ground

Data

Set

Ready

Data

Set

Ready

Data

Set

Ready

[

2

3

4

5

6A

68

7

;-

__

::oJ

8t-

~

Electronics I

L Package I

~

o

'"

"

o

."

"

.0

'~,

o

I

I I

I

I I

L-L_-

l

IBM 6360, 6580 Product Support Manual

Specifications and Main Features

Frequently Asked Questions

User Manual