Commodore Plus 4 Bedienungsanleitung

SERVICE MANUAL

MODEL PLUS 4 COMPUTER

OCT. 1984 PN-314001-04

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.

1984 by Commodore Electronics Limited.

CONTENTS

RF MODULATOR 251844 LAYOUT .

251844 SCHEMATIC

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SPECIFICA TIONS

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OVERVIEW .•••

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PRODUCT PARTS LIST .

CASEWORK IDENTIFICATION

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PCB LAYOUT .

PCB PARTS LIST

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PCB SCHEMATIC DIAGRAMS

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KEYBOARD MATRIX .

I.C. PINOUTS FOR UNCOMMON CHIPS •••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••••

RF MODULATOR 251311 LAYOUT ..

251311 SCHEMATIC .

iii/iv

PLUS 4 PRODUCT SPECIFICATION

MEMORY

64K RAM. 60K RAM User accessible for BASIC programs.

ROM

32K ROM Standard (includes operating system and BASIC interpreter) with 32K additional ROM con-

taining the built-in productivity software.

MICROPROCESSOR

7501 Microprocessor - .89 or 1.76 MHz clock.

DISPLAY

40 Columns x 25 lines of text.

COLORS

128 Colors (16 colors; 8 luminance levels).

CHARACTERS

Upper

lower case letters, numerals and symbols. Reverse and flashing charachters. All PET graphic

characters.

DISPLAY MODES

Text characters. High resolution graphics. Split screen text/high resolution graphics. Multicolor graphics.

RESOLUTION

320 x 200 Pixels

SOUND

2 Tone generators or 1 Tone and 1 white noise generator.

VOLUME

8 Volume levels

KEYBOARD

Full size typewriter style design

KEYS

67 Keys total. 4 Cursor control keys. 4 Programmed (reprogrammable) function keys (up to 8 user

defined functions possible). Color control keys. HELPkey. Upper and lower case character set. Graphics

character set.

INPUTS/OUTPUTS

PLUS/4 MODEM (User) port. Serial port. ROM cartridge and parallel disk drive port. 2 Joystick ports.

C1531 Cassette drive interface port. RF Output-channel 3 or 4. Video output-composite/

chrominance/luminance. Audio input/output. Power supply input.

PLUS 4 PRODUCT SPECIFICATION (Continued)

FEATURES

Built-in extended BASIC 3.5 - over 75 commands. Built-in Machine Language monitor - over 12

commar.ds. Built-in graphics and sound commands. Screen window capability. Reset button (Warm

start). Built-in integrated productivity software.

PERIPHERALS

C1551 Fast Disk drive, C1531 Datasette, MPS 802 Dot matrix printer, MPS 803 Dot matrix printer,

DPS 1101 Daisy wheel printer, C1802 color monitor.

OTHER PERIPHERALS

C1541 Disk drive, MPS 801 Dot matrix printer, C1702 color monitor.

PLUS 4 OVERVIEW

The Plus 4 system is based on the 7501 microprocessor, an HMOS version of the 6510. Video pro-

cessing is achieved by the 7360 TED chip. 64K bytes of dynamic RAM are accomplished by 8 (64K

x 1) I.C.'s. (See page ). The system program is contained in 2 (16K x 8) ROMs. The system supports

up to 128K x 8 of ROM banked in 16K sections. By software control, through the 7360, ROM can

be completely banked out and RAM banked in for a true 64K of RAM (minus 256 byte pages), allow-

ing 60,671 bytes available for BASIC.

Keyboard and joystick scanning are accomplished by outputting the row data on the data bus while

addressing a particular register in the TED chip. This will in turn cause the TED chip to latch the column

information.

A standard serial port supports serial bus peripherals such as the 1541 disk drive and the various

serial printers. A cassette port is provided and the expansion port supports ROM cartrdiges. TTL serial

ASCII is intended to drive an RS-232 adapter.

PARTS LIST

PLUS/4

TOP CASE ASSY

Top Case

Keyboard,

Key, KKR-I

Nameplate

Shield Clip, R

Shield Clip, F

C 251453-01

251501-01

C 251655-01

C 251855-01

C 251856-01

BOTTOM CASE ASSY

Bottom Case

Foot, Self-Adhesive

Paper Shield

Shield Chip

Shield Plate

Insulation Sheet

C 251454-01

C 950157-04

C 310156-01

C 310199-01

C 310197-01

C 310198-01

ACCESSORIES

Users Manual

Power Supply

RF Cable

Switch Box

C 310196-01

C 310157

C 326189-02

C 904778-01

C - Commodore Stock Part

•

c..

:::::I

....

:::::I

"'C

s::

(")

:iE

;:I;"

~ Dl __

1 I

01---

-oj

:s::

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til

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:s::

lii

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til

."0 0

nm m

-oj

CO _

m _

:E ....

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....

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til

-oj

...

FB4

f88

fB2

Q"a"

r:::fB7

FB34l-}FB1O

.......

?il

~B;:'

EMZ

L-------------~~~-1. ~

U20

< ~

(C'

II )

:JJ ..., ..., (,)

C's

1------11

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30. -

- ~ ;;;;;; ~ ~ 3,

L-;=R;::I:=~

L::.:J - (;) EM!

ffi

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4 ,,0

c,;

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(C13

CI2 )

I~\: I

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R3 ...

\.gJ

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U22

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til

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U24 c:

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U25

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U 14

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U 13

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U 15

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PARTS LIST - PLUS/4 PCB ASSEMBLY #310163-01

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-references 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".

DIODES (Continued)

INTEGRATED CIRCUITS

Bridge Rectifiers DBA20C

Sanyo 251026-03

Diode, Zener RD 6.8 EB 900927-01

Diode, IN 914 Sub: 900850-16

Diode, IN 4148 Taping 251819-21 Sub:

Diode, IN 4148 900850-01

CR1

(cont.)

CR2

CR11-20

7360 VLSI, Text Dislay (TED)

Sub: C 251535-01

8360 C 251535-02

7501 Custom Microprocessor

C 251536-01

6551 A (Synertek) 901895-02

74LS08 901521-03

6529B Single Port Interface

C 251640-03

901521-02

901522-06

901523-01

901521-57

901505-01

C 251641-02

901521-18

901521-34

901521-22

RESISTORS -

All values are in ohms-1/4 W

5% unless noted otherwise.

74LS04

7406

555

74LS257

4164-2 D-RAM

7700-01 0 PLA

74LS139

74LS175

74LS27

2312B ROM TED Basic

U9-10

U11-18

U19

U20

U21

U22

U23

240

250

lOOK

1.5K

47K

lOOK

R14

R15

R16

R17

R18

R19

R20

R21

R22

R23

R24

R25

4.7K

10K

470K

220K

18K

1.5K

470K

lOOK

12K

10K

Rl0

R11

R12

R13

C 318006-01

23128 ROM TED Kernal C 318005-04

23128 FUNCTION ROM, 3 + 1 LOW

C 317053-01

23128 FUNCTION ROM, 3+HIGH

C 317054-01

6529B Single Port Interface

C 251640-03

U24

U25

U26

RESISTOR PACK

U27 3.3K, 6 PIN 902441-29

68, 8 PIN 4 ISOLATED 326149-06

RP1, 2

RP3,4

TRANSISTORS CAPACITORS

01-03

2SC 1815 902693-01 C1 Elect 0.1 µ,F25V 900100-40

2SD 880 902694-01 Sub: C2 Ceramic 0.1 µ,F25V 251075-06

Tip 29A 902653-01 Sub: C3 Film 0.22 µ,F 100V 900150-11

2SD 1266 902694-04 C4 Film 0.22 µ,F 100V 900150-11

C5-C6 Ceramic 0.22 µ,F50V 900022-01

DIODES

I I

C7 Elect 2200 µ,F 16V 900101-33

C8 Elect 10 µ,F 16V 900100-25

CR1

Bridge Rectifiers S2VB 10 Sindengen C9 Ceramic 0.1 µ,F25V 251075-06

215026-01 Sub: C10 Trimmer 40 pF

251029-02

Bridge Recitifers DBA20B Sanyo Cll Ceramic 22 pF 50V 251070-14

251026-02 Sub:

PARTS LIST - PLUS/4

PCB ASSEMBLY #310163-01 (Continued)

CAPACITORS (Continued) MISCELLANEOUS (Continued)

C12

C13

C14

C15-C16

C17-C18

C19

C20

C21

C22

C23

C24-C26

C27

C28-C29

C30

C31-C32

C33-C40

C41-C51

C100

Ceramic 220 pF 50V

251071-26 Sub:

220 pF 50V

150 pF 50V

Ceramic

Sub:

Ceramic

Elect

Ceramic

Elect

Ceramic

Elect

Ceramic

Elect

Ceramic

Sub:

Ceramic

Sub:

Ceramic 0.1

150 pF 50V

0.1 µF25V

0.1 µF 25V

10 µF 16V

0.01 µF 25V

10 µF 16V

0.1 µF 25V

10 µF 16V

1 µF 16V

0.1 µF 25V

10 µF 16V

0.1 µF 25V

10 µF 16V

0.1 µF 25V

0.22 µF 25V

0.22 µF 50V

0.1 µF 50V

µF 50V

MISCELLANEOUS

SW1

SW2

Sub:

900463-08

251071-24

900462-41

251075-01

251075-06

900100-25

251075-01

900100-25

251075-06

900100-25

900100-16

251075-06

900100-25

251075-06

900100-25

251075-06

251075-07

900022-01

900020-06

9000010-01

900010-20

Crystal 14.31818 MHZ 251081-01

Sub:

Crystal 14.31818 MHZ 251081-02

Crystal 1.8432 MHZ 900555-02

Switch, Rocker C 251587-01

(PC Mount)

Switch, Push Button C 251260-01

RF Modulator C 251844-01

Sub:

RF Modulator 251311-01

FB2-14

FB15-21

FB22-26,

FB28-38,

FB40

FB41-58

FB59

FB60

FB61-63

FB64-65

EM1,2

CN1

CN2

CN3

CN4

CN5-6

CN7

CN8

L3,L3

Ferrite bead

Ferrite bead 325563-01

903025-01

Ferrite bead 325563-01

Ferrite bead

903025-01

325563-01

903025-01

325563-01

903025-01

EMI Filter 251842-01

Connector 4 PIN (power supply)

C 251614-01

Connector 6 PIN DIN (serial bus)

C 903361-01

Connector 7 PIN MINI DIN (cassette)

C 251616-01

Connector 50 PIN Female Edge

(exoab) C 251630-01

Connector 8 PIN MINI DIN

(joy 1

2) C 251259-01

Connector 8 PIN DIN (audio/video)

325573-01

Connector 18 PIN (keyboard)

C 251841-01

Noise Filter

Line Filter

Sub:

Coil Inductor 1.2 uHpt

Sub:

251264-01

906127-01

251701-01

901152-01

325570-01

Fuse 250V 1.5A

Fuse Clip

Cartridge Guide

Shield Box

Shield Cap

903556-18

906102-01

310171-01

C310172-01

C 310173-01

C - Commodore Stock Part

RUN

5 1 CLR CTRL) STOP,. SPACE

w ~ ... ~

q;1

f-j\

3 W ~ A SHIFT Z S E

...I.

\!...} ,\

:17 .,"

• " v

t:j"1\

5 " R D X C F T 6 SHIFT LOCK

\!y

T:It

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tjt "'

10'

7 Y G "V

B H U 8

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""Q

'-V

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-eN

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M...K of'O ~0

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~~9 ,I

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L , . :

I - ~

'fr

~ 'P

'P""

* ~

-EI; =\1/

,ESC

+ ~

~ ,DEL RETUR~00. '"

f2 f3

'P ~

't'

't' ~ ~

\..4

I<J

140

2 39

338

437

5 36

635

734

833

932

10 31

7501

11 30

12 29

13 28

14 27

15 26

no.

16 25

17 24

18 23

19 22

20 21

cj>OI N

RDY

IRQ

AEC

VCC

A 11

A12

A13

GND

KEYBOARD MATRIX

RES

R/W

GATE IN

A15

A14

VDD

CS0

CS1

R/W

IRQ

MUX

RAS

CAS

cj>0

COLOR

CLK IN

SYNC

VSS

PIN ASSIGNMENT

U2-251536-01

CUSTOM MICROPROCESSOR

HELP

148

247

346

4 45

544

643

742

841

940

10 39

7360

12 37

13 36

14 35

15 34

16 33

17 32

18 31

19 30

20 29

21 28

22 27

23 26

24 25

-A3

-A4

-A5

-A6

-A7

-A8

-A9

-A10

-A11

-A12

-A13

-A14

-A15

-AEC

-BA

-SND

-D7

-D6

-D5

-D4

-D3

-D2

-D1

-D0

PIN ASSIGNMENT

U1-251535-01

VLSI, TEXT DISPLAY

(TED)

Andere Handbücher für Plus 4

Dieses Handbuch passt für folgende Modelle

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