Commodore C16 Service Manual

SERVICE

MANUAL

MODEL

C16

COMPUTER

Preliminary

OCT.

1984

PN-314001-03

Commodore Business Machines, Inc.

1200

Wilson

Drive,

West

Chester,

Pennsylvania

19380

U.S.A.

Commodore makes no expressed

or

implied

war-

ranties

with

regard

to

the

information

contained
herein. The information iS,made available solely on
an as is basis, and

the

entire risk as

to

quality and

accuracy

is

with

the user. Commodore shall

not

be

liable

for

any consequential

or

incidental damages

in connection

with

the use

of

the information con-

tained herein. The listing

of

any available replace-

ment

part herein does

not

constitute

in any case

a recommendation,

warranty

or

guaranty as

to

quality

or

suitability

of

such replacement part.

Reproduction or use

without

expressed permission,

of

editorial

or

pictorial

content,

in any

matter

is

prohibited.

This manual contains copyrighted and proprietary information.

No

part

of

this publication

may

be reproduced, stored in a retrieval

system,

or

transmitted

in any

form

or

by

any means, electronic, mechanical,

photocopying, recording or otherwise,

without

the prior

written

permis-

sion

of

Commodore Electronics

limited.

Copyright ©

1984

by Commodore Electronics

limited.

All rights reserved.

CONTENTS

Title

SPECIFICA TIONS
PRODUCT PARTS LIST

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

.

CASEWORK IDENTIFICATION

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

.

PCB

LAYOUT

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

.

PCB

PARTS LiST

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

.

PCB

SCHEMATIC DIAGRAMS

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

.

KEYBOARD MATRIX

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

.

I.C. PINOUTS

FOR

MOS DESIGN

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

.

RF

MODULATOR LAYOUT

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

.

RF

MODULATOR SCHEMATIC

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

.

Page

1

3

3

4

5

7

8

9

10
10

iii/iv

C16

PRODUCT

SPECIFICATION

MEMORY

16K

RAM Standard

ROM
32K

ROM Standard (includes operating system and BASIC interpreter).

MICROPROCESSOR
7501/8501

Microprocessor

with a two

speed

clock

(.89

or

1.76

MHz).

DISPLAY
40

Columns x

25

lines

of

text.

COLORS

121 Colors

(1

5 colors; 8 luminance levels and Black).

CHARACTERS
Upper

&

lower

case letters, numerals and symbols. Reverse and flashing characters. All

PET

graphic

characters.
DISPLAY MODES

Text characters. High resolution graphics. Split screen text/high resolution graphics. MultiColor graphics.
Split screen/multi-color graphics.

RESOLUTION
320 x 200

Pixels

SOUND

2 Tone generators or 1 Tone and 1 noise generator.

VOLUME

8 Volume levels
KEYBOARD

Full size/full stroke

C64

style design.

KEYS
66

Keys total. 4 Cursor control keys. 4 Function keys (up

to

8 user defined/programmable functions

possible). Color control keys.

HELP

key. Upper and

lower

case character set.

INPUTS/OUTPUTS
Serial port.

ROM

cartridge and parallel disk drive port. 2

Joystick

ports. C 1531 Cassette drive inter-

face port.

RF

Output

- channel 3 or 4. Video

output

- composite/chrominance/luminance, audio

input/output.

Power supply input.

FEATURES

Built-in BASIC

3.5

- over

100

commands, statements and functions. Built-in Machine Language

Monitor

- over

12

commands. Built-in graphics and sound commands. Screen

window

capability.

Extended screen editor.

PERIPHERALS

C1541 Disk drive, C1551 Fast Disk Drive, C1531 Datasette, MPS

802

Dot

matrix printer, MPS

803

Dot matrix printer,

DPS

1101 Daisy wheel printer,

C1520

Plotter/Printer,

C1802/1803

Color monitor,

C

1702

Color monitor.

2

TOP CASE ASSY

Top Case
Keyboard,

66

Key

LED

Plate
Nameplate
Lamp Holder Set
LED

Assembly

BOTTOM CASE ASSY

Bottom Case
Foot, Self-Adhesive
PCB

Shield Plate,

top

PCB

Shield Plate,

bottom

PCB

Insulation Sheet

ACCESSORIES

Users Manual
Power Supply
RF

Cable

Switch

Box

PARTS

LIST

C-16

C

251813-01

C

251798-01

C

326160-02

C

251794-01

C

903820-03

C

1001039-01

C

251790-01

C

950157-04

C

251795-01

C

251796-01

C

251797-01

C

251799-01

C

251539

C

326189-02

C

904778-01

C - Indicates Commodore

Stock

Part

0

.'----"

.I.-.J

DDDD

~D

~

U

0

iO

,~

.'-----

0

'-

.""'""-

0,

0 0

0

1

0 0

~O

~O

l

DDDO

[_I

."-

~.O~go~

1--

,"--

-

0

0

--

~O

D

0

D

.'---

D

~O

v

D

(

\\

\\

\

3 PIN

CONNECTOR

FROM LED

LAMP

CN9

REF.

20-PIN

CONNECTOR

FROM

KEYBOARD

CN2

REF.

C-1 6 Casework Identification

3

••

.,1-"

1-:'"

SOLDER

L

__

BOTTOM

VIEW

DETAIL

E

251081-01

SHOWN

(

251081-03

SHOWN

DETAIL

A

1

3

I I

"leN3

CN7l

j I

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DETAIL

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FOR -01

TO

-03

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UIS

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NO

250«3

c.:::JF131
c.:::JF131

CNI

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L->

---11

5

0

~

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i i 5

;;

5

PC!

NO

251789-0 , REVA

c.:J....

1:1

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(+)~['--~-----

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c...:JF831

,--....

.......

______

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i1

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.,..(-----------I@c)

it

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H::~:

RI

COMMODORE

16

C>

1984

[ 1

C2

at

e

~[

~

i 1

48

UI

........

D'7

IUa]

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......

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1&."

20

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r::::

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CI4

L---I

II:

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UI2

UI

'4

II

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RP4

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18

us

~D

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U3

'1

U6

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__________________

~

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+_-------------------------------

___

--I

SEE

DETAIL

A

C-16

PCB

Assembly

4

PARTS LIST -

C-16

PCB ASSEMBLY

#250443-01

PLEASE NOTE: Commodore part numbers are provided

for

reference

only

and do

not

indicate the

availability

of

parts from Commodore. Industry standard parts (Resistors, Capacitors,

Connectors) should

be

secured locally. Approved cross-reference

for

TTL chips,

Transistors,

etc.,

will be available in manual form

through

the

Service Department

in November

of

1984.

Unique or non-standard parts will be stocked

by

Commodore

and are indicated on

the

parts list by a

"C".

INTEGRATED

CIRCUITS

U1

U2

U3

U4

U5,U6

U7,U8

U9

U10

Ull

U12

U13

U14

U15

U16

IC

7360

VSLI, Text Display

(TED)

C 251535-01

Sub: IC8360 C

251535-02

IC

7501 Custom Microprocessor

C 251536-01

IC

23128

ROM

TED

Basic

C 318006-01

IC

23128

ROM

TED

Kemal

Sub: IC231 28
IC

D-RAM 16 x 4

IC

74LS257

IC

7406

IC

555

IC

74LS125

IC

74LS02

C

318005-05

C

318005-04
251538-02
901521-57
901522-06
901523-01
901521-20
901521-21

IC

6529B Single Port Interface

IC

74LS139

IC

74LS175

IC

7700-010

PLA

C

251640-03
901521-18
901521-34
C

251641-02

TRANSISTORS

Q1

Q2

Q3

Q5

DIODES

2SC

1815

2SC

1815

2SC

1815

2SD

880

Dl-Dl0

IN914BFORMING

Sub:

15953(3) FORMING

Dll

IN4001

D12

ZENER

RD

6.8EB

Sub:

ZENER

IN754A

902693-01

902694-01

251819-16

251819-07
900750-01
900927-01
900927-02

RESISTORS - All values

are

in

ohms-1/4 W
5%, Carbon Comp - Forming
Typ, unless noted otherwise.

R1
R2

10K

II

R3

I

470K

4.7K

R4

220K

RESISTORS (Continued)

R5
R6

R7
R8
R9

R10

R11
R12
R13

R14

18K

1.5K

470K

lK

12K

Wound 20K

5W,10%

10K

3.3K
470K
470K

R20
R21
R23
R24
R25
R26
R27

R28
R29
Rl02

47K

100K

10K

lK

lOOK
240K
240K

lK
100K
330K

RESISTOR PACK

RP1

1 K 6

PIN

0.19W

2%

902441-22
902441-29
326149-06
326149-06
902441-29

RP2

3.3K 6

PIN

0.19W

2%

RP3

68K 8

PIN

RP4

68K 8

PIN

RP5

3.3K 6

PIN

0.19W

2%

CAPACITORS

Cl
C2
C3
C4
C5
C6
C7
C8
C10
Cl1
C12
C13
C14
C15
C16
C17
C18
C19
C20
C21
C22

Elect 1flF

25V

900100-32

Elect

47

flF

25V

900100-33

Elect

10

flF

25V

900100-01

Elect

10

flF

25V

900100-01

Ceramic 0.1

flF

25V

251075-06

Ceramic 0.1

flF

25V

251075-06

Cermaic

0.22

flF

25V

251075-07

Ceramic

0.22

flF

25V

251075-07

Ceramic 0.1

flF

25V

251075-06

Ceramic 0.1

flF

25V

251075-06

Ceramic

22

pF

50V

251070-14

Ceramic

220

pF

50V

251071-26

Ceramic

150

pF

50V

251071-24

Ceramic 0.01

pF

25V

251075-01

Elect

10

flF

25V

900100-01

Elect 1

flF

16V

9001 00-1 6

Elect

10

flF

25V

900100-01

Elect

10

flF

25V

900100-01

Ceramic 0.01

flF

25V 251075-01

Ceramic 0.1

flF

25V

251075-06

Ceramic 0.1

flF

25V

251075-06

C - Commodore Stock Item

5

PART

LIST -

C16

PCB

ASSEMBLY

#250443-01

(Continued)

CAPACITORS (Continued) MISCELLANEOUS (Continued)

C23

Ceramic

470

pF

50V

251071-30

Cartridge Guide

C 310171-01

C24

Ceramic

470

pF

50V

251071-30

Connector

Panel

251791-01

C25 Ceramic

470

pF

50V

250171-30

M1

RF

Modulator C 251844-01

C26 Ceramic 0.1

/kF

25V

251075-06

C28 Ceramic

0.1

/kF

25V

251075-06

FB1-5,

C30

Ceramic 0.1

/kF

25V

251075-06

FB12-19

C31

Elect

10

/kF

25V

900100-01

FB22,

Ferrite

Bead

325563-01

C32

Ceramic

0.1

/kF

25V

251075-06

FB24-35

C33 Ceramic 0.1

/kF

25V

251075-06

FB37-56,

C34

Ceramic 0.1

/kF

25V

251075-06

FB58

C200

Ceramic .22

/kF

25V

251075-07

EM1-5

EMI

Filter 251842-01

CT1

Capacitor, Trimmer

251029-02

CONNECTORS

MISCELLANEOUS

CN1

Connector,

50

PIN

Female

Edge,

Y1

Crystal

14.31818

MHZ -

Expan. Gold Plated

251630-02

CL

= 32

pF

251081-03

CN2 Header

Pin,

20

PIN,

Keyboard

Sub:

903364-01

Crystal

14.31818

MHZ

251081-01 CN3

Connector, 7

PIN

MINI DIN,

Cassette

C 251616-01

L1

Coil

Inductor 1.2

uH

325570-01

CN4

Connector, 8

PIN

MINI DIN,

L3

Line Filter

251701-01

Joy

0 Joy 1

C 251259-01

CN5 Connector, 8

PIN

MINI DIN,

SW1

Switch, Rocker

(PC

Mount)

Joy

0 Joy 1 C 251259-01

C 251587-01

CN6

Connector, 8

PIN

DIN,

SW2

Switch,

Push

Button C 251260-01

AudiolVideo C 325573-01

CN7 Connector, 6

PIN

DIN,

VR1

Voltage Regulator

7805

901527-02

Serial

Bus

C 903361-01

CN8 Connector Jack,

DC

Power,

F1

Fuse, Normal BLOW

250V

1.5A

Power C 251263-01

903556-18

CN9

Header Assembly, 3

PIN,

LED

F1

Fuse,

Clip

906102-01

903332-03

C - Commodore Stock Item

6

A2
A1
A(J)

VOO

CSO
CS1
R/W

IRQ

MUX

RAS

CAS

cf>(J)

COLOR
ClK

IN

K(J)

PIN

ASSIGNMENT

-

1

48

-

2

47

-

3

46

-

4

45

-

5

44

-

6

43

-

7

42

-

8

41

-

9

40

-

10

39

-

11

7360

38

-

12

37

-

13

36

-

14

35

-

15

34

-

16

33

-

17

32

-A3

cf>OIN

-A4

ROY

-A5

IRQ

-A6

AEC

-A7

VCC

-A8

A

-A9

A1

-A1(J)

A2

-A11

A3

-A12

A4

-A13

A5

-A14

A6

-A15

A7

-AEC

A8

-BA

A9

-SNO

A1

-07

A

11

PIN

ASSIGNMENT

1

40

RES

2

39

R/W

3

38

0(J)

4

37

01

5

36

02

6

35

03

7

34

04

8

33

05

9

32

06

10

7501

31

07

11

30

-P(J)

12

29

P1

13

28

-P2

14

27

-P3

15

26

-P4

16

25

-P5

17

24

-P6

NC

A12

A7
A6
A5
A4
A3
A2
A1

A(J)

01
02
03

GNO

PIN

CONFIGURATION

-

1

28

-

-

2

27

-

-

3

26

-

- 4

25

-

-

5

24

-

-

6

23

-

-

7

23128

22

-

-

8

21

-

-

9

20

-

-

10

19

-

-

11

18

-

-

12 17

-

-

13

16

-

-

14

15

-

U3-318006-01

ROM TED - BASIC

VCC
CS

3

A13
A8
A9
A11
CS,

A1(J)

CS

2

08
07
06
05
04

K1
K2
K3
K4
K5
K6
K7

-

18

31

-06

A12

18

23

GATE

IN

SYNC

VSS

-

-

-

-

-

-

19
20
21
22
23
24

30

-05

29

-04

28

-03

27

-02

26

-01

25

-O(J)

A13

19

22

A15

GNO

20

21

A14

U2-251536-01

CUSTOM MICROPROCESSOR

PIN

U1-251535-01

VLSI, TEXT DISPLAY

(TED)

ASSIGNMENT

PART NO.

251538-02

-02

-02

-02

ENABLE

O(J)
01

WE

RAS

A6
A5
A4

VOO

- 1

- 2

- 3

- 4

- 5

- 6

- 7

- 8

- 9

18
17
16
15
14
13
12
11
10

-

-

-

-

-

-

-

-

-

VSS
03
CAS
02
A(J)
A1
A2
A3
A7

U5-U6

16

X 4 D-RAM

SUGGESTED

ACCESS TIME

SOURCE

VENDOR FROM RAS

OF

SUPPLY

PART NO.

TRAC

(ns)

TEXAS INSTRUMENT

TMS4416-15

150

FUJITSU

MB81416-15

150

MITSUBISHI

M5M4416P-15

150

HITACHI

HM48416AP-15

150

PIN

CONFIGURATION

NC

1

28

VCC

A12

2

27

CS

3

A7 3

26

-A13

A6 4

25

A8

A5 5

24

A9

A4

6

23

-A11

A3 7

23128

22

-CS,

A2 8

21

-A1(J)

A1

9

20

-CS

2

A(J)

1(J)

19

-08

01

11

18

07

02

12

17

06

03

13

16

-05

GNO

14

15

-04

U4-318005-04

ROM TED - KERNAL

RANDOM READI

WRITE CYCLE

TIME

TRACT

(ns)

260
260
260
260

CII

Lt

~I--

----

~

Y"

::

0./11;: 1.2.;-1(

LU~

~------------------------------------------------------------~~LUHIH

COLOR

~<~

__

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

+$\1

J'Nt>

R2J

2

SND

las

lOOk

CI8

f~';'~SY

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R23 /9AIMv

II<;.

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r-~--~/~~-----4h,~--~----~---¥~~

25(181$

It'

121<

-=

C20

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f).

a Ip'"

r-----------~~------~--~----~----~+sv

!

RS

IliA

uS

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I.-$'/:.

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NtlllS

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PAL

17.7J447UHz

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CL

-.32.pr

R2

CST

ltD

CST

W~T

DZ

CST

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C12

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