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SERVICE MANUAL

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PC30-III

AUGUST, 1989 PN-314118-01

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SERVICE MANUAL

PC30-III

AUGUST, 1989 PN-314118-01

INTERNATIONAL EDITION

COMMODORE “ INTERNATIONAL EDITION” SERVICE MANUALS CON TAIN PART NUMBER INFORMATION WHICH MAY VARY ACCORDING TO COUNTRY. SOME PARTS MAY NOT BE AVAILABLE IN ALL COUNTRIES.

Commodore Business Machines, Inc.

1200 Wilson Drive, West Chester, Pennsylvania 1 9380 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 w ith 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, w ithout the prior written permis sion of Commodore Electronics Limited.

PC30-III SERVICE MANUAL

TABLE OF CONTENTS

SECTION 1 — SPECIFICATIONS

SECTION 2 — OPERATION NOTES

SECTION 3 — TROUBLESHOOTING GUIDE

SECTION 4 — PARTS

SECTION 5 — SCHEMATICS

PC30-III SERVICE MANUAL

SECTION 1

SPECIFICATIONS

PC30-III SERVICE MANUAL

TECHNICAL SPECIFICATIONS

PC30-III MEMORY

ROM RAM on board

RAM expandable

on board on slots

AT Compatible

Autoconfig BIOS 640 kbytes Base RAM

n/a Yes; to 15 Mbytes

CPU

Type Clock speed 80287 Math Co-processor Number of Slots Operating System

KEYBOARD

Number of keys Type Numeric keypad Cursor keys Function keys

80286-12 6, 8, 12 MHz Socket on board Two AT, one XT slots MS-DOS 3.3 included

ASCII 101 — International 102 Enhanced AT Yes 4 - inverted T layout

12

POWER SUPPLY

Type Maximum configuration

supported

INPUT/OUTPUT PORTS

RS232C serial Centronics parallel Mouse port

High-efficiency switching power supply with integrated cooling fan 2 floppy disk drives, one hard disk drive, 3 expansion cards; or 1 floppy disk drive, one hard disk drive, 1 tape unit, 3 expansion cards

Built in Built in Built in for 1352 Mouse — Microsoft bus mouse configuration

STORAGE

Floppy drive

Hard drive

Maximum internal

configuration

Build in controller supports one or two drives One AT hard disk built in Two half-height 3.5 or 5.25 inch floppy disk drives and one half-height

3.5 inch hard disk drive

VIDEO

EGA CGA MDA Hercules

EGA Wonder800 + EGA Wonder800 + EGA Wonder800 + EGA Wonder800 +

video card video card video card video card

(See EGA WonderSOO + User's Guide for video details.)

COMPATIBLE MONITORS

EGA, RGB Color, TTL Monochrome, Multisync Monitors

OTHER FEATURES

Built-in real-time clock/calendar with battery backup

External Configuration switches

Hardware Reset switch

Audio connector — (IV peak-to-peak; 1 K ohm impedance) provides external audio for enhanced sound; to be connected

to a monitor’s pre-amp circuit.

COMMODORE ADD-ON OPTIONS

Second floppy disk drive

1352 mouse

MPS 1250 printer

1402 TTL monitor (mono)

xxxx monitor (mono) with sound

1084 RGB monitor (color) with sound

1-1

PC30-III SERVICE MANUAL

EGA WONDER800®

SPECIFICATIONS VIDEO DISPLAY BUFFER

256K bytes

SYNC SIGNALS

Separate horizontal and vertical sync in TTL levels

Horizontal

35kHz - MultiSync monitors (800x600)

31.5kHz - MultiSync monitors (640x480)

21.8kHz - EGA monitors

15.75kHz - RGB monitors

18.432kHz - TTL Monochrome monitors

Vertical

56 Hz - MultiSync monitors (800x600) 60 Hz - MultiSync monitors (640x480) 60 Hz - EGA monitors 60 Hz - RGB monitors 50 Hz - TTL Monochrome monitors

CONNECTOR

9-pin D shell (Female) IBM standard

MONITOR COMPATIBILITY

TTL Monochrome Display RGB Color Display EGA Enhanced Color Display MultiSync monitor

SIZE

5.25" x 4.2"

POWER

+ 5V ± 5%, @ 0.6 AMP typical

ENVIRONMENT

Ambient Temperature 50° to 122° F (10° to 50° C) operation. 32° to 162° F (0° to 70° C) storage Relative Humidity 5% to 90% non-condensing operation. 0% to 95% storage

BUS

AT standard

BUS LOADING

No more than 2 LS TTL load

CONNECTOR SPECIFICATIONS

DB9 Connector

Pin No.

Signal

1

Ground

2 Secondary Red/Ground 3

Primary Red

4 Primary Green 5 Primary Blue 6

Secondary Green/Intensity

7

Secondary Blue/Mono Video

8

Horizontal Retrace

9 Vertical Retrace

1-2

PC30-III SERVICE MANUAL

SECTION 2

NOTES — OPERATIONS GUIDE

PC30-III SERVICE MANUAL

OPERATION NOTES

THE PC30-III HARDWARE CONFIGURATION

USING THE PC30-III SETUP UTILITY

Once MS-DOS has finished booting and the C> prompt has appeared, you can use the built-in Setup utility to give

the system detailed information on your PC30-III configuration. To run the Setup utility, hold down the Control

and Alt keys and simultaneously press the Esc key. The main menu of the Setup utility will appear and will look like this:

Commodore Setup Utility

Date 23.08.88 Time 14:26:26 Diskette 1 1.44M Diskette 2 NONE Hard Disk 1 31 Hard Disk 2 NONE Video SPECIAL Coprocessor NONE Base Memory 640 KB Extended Memory 000 KB

Base memory found: 640 KB Extended memory found: 000 KB

Use f, 1 to select items Use to select predefined values Use <PgDn> to view more hard disk types Press <Esc> to abort SETUP Press <End> to exit and update Press FI for secondary SETUP window

Hard Disk Type Information

Type Cyln

Head Sect W-pc L-zone Size

1 306 4 17 128

305 10 MB

2 615 4 17

300

615

20 MB

3 615 6 17 300

615

30 MB

4

940 8 17 512 940 62 MB

5 940 6

17

512 940 46 MB

6

615

4 17

NONE 615 20 MB

7

462 8 17 256 511 30 MB

8

733 5

17

NONE 733

30 MB

9

900 15

17

NONE 901

112 MB

10

820 3

17

NONE 820

20 MB

11 855 5

17

NONE

855

35 MB

12 855

7

17'

NONE

855

49 MB

13 306 8

17

128

319 20 MB

14

733

7

17

NONE 733

42 MB

15 0

0 0 0

0

0 MB

16 612 4 17

0

633

20 MB

FIGURE 1. COMMODORE SETUP UTILITY MAIN MENU

As noted on the Setup screen, you can use the cursor keys and the keyboard to define or change the system configura tion, as follows:

• Use the up and down cursor keys to move from option to option in the main menu.

• Use the left and right cursor keys to select the predefined entries for each option.

• Use the keyboard to type in any information that is not predefined.

• Use PgDn to display additional hard disk types (see Figure 2).

• Use the FI key to display the secondary setup window.

• Use the Esc (Escape) key to abort Setup.

• Use the End key to exit Setup and update the settings.

Following is specific information about the various Setup menu options.

Setting the Date and Time for the Real Time Clock/Calendar

The PC30-III has a Real Time Clock/Calendar with a battery backup. This means that once set, the clock/calendar

will keep the correct date and time even when the computer is turned off. You use the first two lines of the Setup Utility to set the Real Time Clock/Calendar, as follows:

Date: Allows you to set the correct date into the Real Time Clock. This option does not have any predefined entries; simply enter the date from the keyboard, in the format dd/mm/yy.

Time: Allows you to set the correct time into the Real Time Clock, without invoking MS-DOS. This option also does not have any predefined entries; simply enter the time from the keyboard, in the format hh:mm:ss.9 where hh = 00-23, mm = 00-59 and ss = 00-59.

Setting the Floppy Disk Drive Options

You can have a maximum of two floppy diskettes configured into your PC30-I11. The next two Setup menu options, Diskette 1 and Diskette 2, allow you to tell the system how many floppy drives are available and what type they are.

PC30-III SERVICE MANUAL

Here’s how to set these options:

Diskette 1: Predefined entries: None, 360 Kb 5.25, 1.2 Mb 5.25, 720 Kb 3.5, 1.44 Mb 3.5.

The floppy drive in your PC30-III is always considered Diskette 1. Since PC30-III is equipped with a high density (1.44 Mb) drive, select 1.44 Mb 3.5 for Diskette 1.

Diskette 2: Predefined entries: None, 360 Kb 5.25, 1.2 Mb 5.25, 720 Kb 3.5, 1.44 Mb 3.5.

If you have not installed a second floppy drive in your PC30-III, select None for Diskette 2. If you have installed a second floppy drive, select whichever drive type (360 Kb 5.25, 1.2 Mb 5.25, 720 Kb 3.5, 1.44 Mb 3.5) applies

to the installed drive.

Setting the Hard Disk Drive Options

Hard Disk 1 and Hard Disk 2, the next two options in the Setup utility, define how many hard disk drives are available and what kind of hard disk drives they are. Hard disk drives are identified by a pre-assigned Drive Type (1, 2, etc.). This number tells the PC30-III the drive manufacturer and capacity.

Commodore Setup Utility

Default System Speed

12 MHz 6 MHz Hard Disk 1/0 DISABLED On Board Mouse

ENABLED

On Board COM

3F8H

On Board LPT

3BCH

Press F2 to return to main screen

Date Time Diskette 1 Diskette 2 Hard Disk 1 Hard Disk 2 Video Coprocessor Base Memory Extended Memory

Base memory found: Extended memory found:

Use t. 1 to select items Use to select predefined values Use <PgDn> to view more hard disk types Press <Esc> to abort SETUP Press <End> to exit and update Press FI for secondary SETUP window

rmation

L-zone

977 977

1023

732

732 640 KB 000 KB

640 KB 000 KB

Size 40 MB 56 MB 59 MB 30 MB 42 MB

22 733

5

17

300

733 30 MB

23 306 4 17

0 336

10 MB

24

805

4

26

0

820

40 MB

25 776

8

33

0

800

100 MB

26

745

4

28

0

800 40 MB

27

625 5

27

0 871

41MB

28

965 5

17

0

1000 40 MB

29

965

10

17

0

1000

80 MB

30 782 4

28

0

800

42 MB

31

0 0

0

20 MB

32

0 0

0 0 MB

FIGURE 2. SETUP UTILITY PULLDOWN MENU FOR HARD DISK DRIVE TYPE

Here’s how to define your hard disk configuration:

Hard Disk 1:

Your PC30-III comes equipped with a 20 MB hard disk drive. This drive is always considered Hard Disk 1. The Drive

Type for this drive is shown on a sticker located on the back of your System Unit. Find this number and type it in

after Hard Disk I.

The PC30-III Setup utility includes a menu of hard disk drive types with their individual ID numbers. You can page through the menu by pressing the PgDn key. For example, the opening Setup screen in Figure 1 lists drive types 1 through 16. If you press PgDn, the Setup screen will be as shown in Figure 2 with drive types 17 through 32 listed.

Hard Disk 2: This option is not supported by the onboard controller.

Other Setup Options on the Main Setup Screen Video: Tells system what the default video is. Factory-set default is special. This will not change even if the EGA

Wonder800 + Card setting changes. To change the card setting, see the EGA Wonder800 + User's Guide.

Coprocessor: Tells system if an 80287 Numeric Coprocessor (NCP) is installed. Factory-set default is none. Select

Yes if you have installed an 80287 Numeric Coprocessor.

Base memory: Lets you customize base memory for specific applications. Extended Memory: Disabled.

2-2

PC30-III SERVICE MANUAL

Using the Secondary Setup Window

Notice the popup window shown at the top of Figure 2. This menu is known as the secondary Setup window. You can access this window by pressing the FI key. You can return to the main Setup window by pressing the F2 key.

The secondary window provides an easy way to change a number of system parameters that are set at startup by the PC30-IITs AUTOCONFIG feature. The secondary Setup window values shown in Figure 2 are the default values normally present at system startup. The following list shows all the possible values for the menu items; the default values are underlined:

Default System Speed 6 MHz Hard Disk I/O On Board Mouse On Board COM On Board LPT

(6/8/12 MHz) (Disabled/Enabled) (Enabled/Disabled) (3F8H/2F8H/OFF) (3BCH/378H/278H/OFF)

Just as with the main Setup screen menu, when you are in the secondary Setup window you can move to an item by using the up and down cursor keys, and you can set the value of the item by using the left and right cursor keys. However, you cannot use the Esc or End keys while you are in the secondary window; before you can use these keys you must first return to the main Setup screen by pressing the F2 key.

The Default System Speed item allows you to select whatever system speed best suits the particular hardware/software configuration of your PC30-III. For instance, if you are using some older software programs or if you have installed a slow speed (6 MHz) Numeric Coprocessor, these may not run at all or may be unreliable at a system speed of 12 MHz. In such cases you can simply select the 6 or 8 MHz clock speed as the Default System Speed.

Note that the 6 MHz Hard Disk I/O value is normally disabled to allow for the fastest possible data transfer to and from the hard disk. You should not have to change this setting unless you are using a hard disk that cannot support high speed data transfer.

You can use the secondary Setup window to enable or disable the on board mouse and to select the serial port (COM) and the parallel port (LPT).

SETTING THE MICROPROCESSOR CLOCK SPEED

The 80286 microprocessor in the PC30-III is capable of running at three different clock (i.e., processor or CPU) speeds:

• Standard speed = 6 Mhz

• Turbo speed = 8 Mhz

• Double speed = 12 Mhz

Unless you have changed the Default System Speed item in the secondary Setup window, the PC30-III is pre-set to

run to double speed (12 MHz) whenever it is booted. You can switch between the clock speeds during a session by using special key combinations or by using the ATSPEED command. (NOTE: If you reboot the PC30-III, the system speed will revert to the default speed specified in the Setup utility. You can reset the default speed by using Ctrl-Alt- Esc to access the Setup utility and then using FI to call up the secondary Setup window.)

To set the clock speed from the keyboard, use these key sequences:

• CTRL-ALT-S for standard speed (6 MHz)

• CTRL-ALT-T for turbo speed (8 MHz)

• CTRL-ALT-D for double speed (12 MHz)

Note: Some software may require that you select standard or turbo speeds for normal operation.

To set the clock speed using the ATSPEED command, first make sure the MS-DOS prompt is showing on the screen. Then type the word ATSPEED, followed by a space, a dash (—), and then a letter (S, T or D) denoting the desired speed. For instance, if you are in standard speed and you want to change to turbo speed (8 MHz), type the following and press Enter:

ATSPEED —T

2-3

PC30-III SERVICE MANUAL

PC30-III VIDEO MODES The EGA Wonder800 + card in the PC30-III is a high performance EGA graphics card from ATI Technologies Inc.,

a recognized leader in the video display card field. Offering total flexibility, the EGA Wonder800 + can display all of the major IBM PC software and hardware stan

dards — EGA, CGA, MDA and Hercules — on any of the major monitor types — Enhanced Graphics, RGB Color, TTL Monochrome and Multifrequency monitors. The EGA Wonder800 + is 100% hardware compatible at the BIOS and register levels.

There are no switches or jumpers to set on the EGA Wonder800 +; special software automatically configures your system at bootup. The EGA Wonder800 + software utilities, ESETUP and ECONFIG, allow the user to easily change the computer selected default video configuration.

ESETUP ESETUP is used to configure the onboard EEPROM. The setup information is retained even after the power is turned

off. It is also used to change or store the default information used by the EGA Wonder800 H-. It is only necessary to use ESETUP in the following situations:

• To change the default setup video mode.

• To specify default monitor selection on power-up.

To start ESETUP, type at the DOS prompt:

C > ESETUP < Enter >

A menu like the following will be displayed:

ATI TECHNOLOGIES INC ATI TECHNOLOGIES INC A TI TECHNOLOGIES INC ATI TECHNOLOGIES INC AT I TECHNOLOGIES INC ATI TECHNOLOGIES INC ATI

EGAWONDER800+ ADVANCE SETUP PROGRAM

ESETUP VERSION xjcx

POWER UP MODE SELECTION

Maj monitor selec tion V ^

[B] EGA [C] CGA [D] MDA MONO GRAPHICS 720X348 [E] MDA MONO GRAPHICS 640X400 [F] ADJUST TTL MONOCHROME GRAYSCALE [G] EXIT AND SAVE CONFIGURATION

Monitor detected

EGA

Use < Ti > or < letter > and < ret > to select option, < esc > to abort.

MONITOR SELECTION

NOTE: Because of ongoing product improvements, EGA Wonder800 + menus and features may not be exactly as shown. See the EGA Wonder 800 + User's Guide and the software README files for the most current information.

The options in the ESETUP menu can be selected by typing in the letter to the left of the selection and then pressing

the Enter key. For a full description of the ESETUP software, including the individual options, see the EGA Wonder800

+ User's Guide.

ECONFIG ECONFIG is a manu-driven used to:

• Change the current video mode to a different mode.

• Automatically turn your screen display off during long periods of inactivity.

ECONFIG is available on your hard disk drive and on one of the EGA Wonder800 + software diskettes.

2-4

PC30-III SERVICE MANUAL

To start ECONFIG, type at the DOS prompt:

C > ECONFIG < enter >

ATI TECHNOLOGIES INC ATI TECHNOLOGIES INC A TI TECHNOLOGIES INC ATI TECHNOLOGIES INC AT I TECHNOLOGIES INC ATI TECHNOLOGIES INC ATI

EGAWONDER800+ ADVANCE CONFIGURATION

PROGRAM

SETUP VERSION XXX SELECTION KEYWORDS

f+< «*•' A* ^

i J M

'VEX3A

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

“ 'i oX "

[B]

' CGA

CGA

[C]

MDA MONO TEXT 720x348

MDA

[D]

MDA MONO GRAPHICS 720x340

H720

IE]

MDA MONO GRAPHICS 640X400

H640

[FJ

132x25

25

IG]

132x44

44

[H] SCREEN SAVE

SAVE

[IJ

EXIT

Current configuration Monitor detected

EGA in ce80 EGA Use <T4> or < letter > and < ret > to select option, < esc > to abort.

MODE SELECTION

| COLOR ' ’ "' I

['"'mono

As with ESETUP, each of the options in ECONFIG can be selected by typing in the letter to the left of the selection and then depressing the Enter key. As you get familiar with the operation of ECONFIG, you can bypass the menu completely by typing:

C > ECONFIG[KEYWORD] < Enter > The keywords are indicated on the right hand side of the screen: EGA, CGA, MDA, H720, H640, 25, 44 or SAVE. For a full description of the ECONFIG software and options, see the EGA Wonder800 + User’s Guide.

AUTOCONFIG™ AUTOCONFIGuration is a unique feature of the Commodore PC personal computers like the PC30-III, allowing

the computer to automatically sense additional peripheral devices plugged into the expansion bus. Once these addi tional devices are detected, the resident peripherals on the PC30-III motherboard are adjusted so as not to conflict with expansion peripherals. The AUTOCONFIG'"1 feature can prevent hardware damage to peripherals and mother board, as well as ease the installation of expansion cards.

VIDEO The video configuration process for the PC30-III is handled by the EGA Wonder800 + video system. See the EGA

Wonder800 + User’s Guide for full details on the PC30-III video configuration.

Serial Port (COMn:)

Before the onboard serial port is enabled a scan of the two standard COMn: hardware locations is made. If serial hardware (serial card/modem) is found operational, possible bootup message(s) may be:

EXPANSION COM at 03F8h

and/or

EXPANSION COM at 02F8h

If both available COM: addresses are occupied by expansion boards, then the onbard serial port will not be enabled.

The onboard serial port will be configured and tested at I/O address 03F8h if no expansion COM:’s are found and

will be configured and tested to the unused COM: address if only one expansion COM: is found.

If the onboard serial port is configured and tested successfully a message will be output during bootup:

ONBOARD COM at 03F8h

or

ONBOARD COM at 02F8h

2-5

PC30-III SERVICE MANUAL

Parallel Port (LPTn: or PRN:)

Before the onboard parallel port is enabled, a scan of the three standard LPTn: hardware locations is made. If parallel hardware (e.g., a printer card) is found operational, possible bootup message(s) may be:

EXPANSION LPT at 0378h

and/or

EXPANSION LPT at 0278h

and/or

EXPANSION LPT at 03BCh

If all available LPT: addresses are occupied by expansion boards, then the onboard parallel port will not be enabled. The onboard parallel port will be configured and tested at I/O address 03BCh if no expansion LPT:’s are found and will be configured and tested to the unused LPT: address if two expansion LPT:’s are found. If only one expansion LPT: is found, the onboard parallel port will be enabled to the first available I/O address when searching in the following sequence:

03BCh, 0378h, 0278h

If the onboard parallel port is configured and tested successfully, a message will be output during bootup:

ONBOARD LPT at 03BCh

or

ONBOARD LPT at 0378h

or

ONBOARD LPT at 0278h

Mouse Port

A check is made for a standard Microsoft Bus Mouse. If it is found in the I/O channel then the onboard Microsoft compatible mouse hardware is never enabled. The following message will appear during bootup:

EXPANSION MOUSE at 023Ch

If no expansion mouse is found the onboard mouse is enabled and tested. If the mouse is operational then the follow

ing message will appear during bootup:

ONBOARD MOUSE at 023Ch

NOTE: The onboard Mouse hardware is enabled/tested independent of the presence of the actual mouse. The bootup messages will appear even if the Commodore PC Mouse Kit is not attached.

80287 Numeric Coprocessor

A test is made for the presence of an 80287 Numeric Coprocessor during bootup. If an 80287 is detected the following message will be output:

80287 Numeric Coprocessor

USING AN 80287 NUMERIC COPROCESSOR

The Commodore PC30-III personal computer comes equipped with a 40-pin socket (U302) for installation of an 80287 Numeric Coprocessor (NCP). When used with software or drivers designed to make use of its abilities, the NCP enhances the PC30-III’s ability to process floating point mathematics, integer math and trancendental functions. Many language compilers (e.g., “C” ) have libraries available that support the use of an NCP.

80287 NCPs are available in the following speeds: 5, 6, 8 and 10 MHz. The units are downwardly compatible only! This means that a 10 MHz part will function properly if your PC30-III is running at 6 or 8 MHz, but a 6 MHz part will NOT function at 12 MHz. As a rule the higher the speed of an NCP, the more expensive and harder to find that NCP will be. The 8 MHz 80287s are most readily available and are reasonably priced.

To operate your PC30-III at clock speeds of 6, 8 and 12 MHz with an NCP, an 80287-8 or 80287-10 is required.

INSTALLING THE OPTIONAL COMMODORE 910, 915 AND 920 FLOPPY DRIVES

In addition to following the general installation instructions given in the manuals for the Commodore 910 and 920 floppy drives, the user must also perform the specific procedures for PC30-III installation described below.

2-6

PC30-III SERVICE MANUAL

Commodore 910 Floppy Drive

To install the Commodore 910 3.5 inch 720Kb drive as Drive B: in the PC30-III, the user must do the following:

• Set the drive select jumper to position 1.

• The M jumper should be in position 5.

• The R-D jumper should be in position 6.

• The first time you power up, use the Setup utility to identify your second drive (Diskette 2 on the menu) as

a 720Kb 3.5 drive.

Commodore 920 Floppy Drive

To install the Commodore 920 5.25 inch 360Kb floppy drive as Drive B: in the PC30-III, the user must do the following:

• Set the drive select jumper to position 1.

• Cut JP6 (located on the bottom side of JP1) in half.

• The first time you power up, use the Setup utility to identify your second drive (Diskette 2 on the menu) as

a 360Kb 5.25 drive.

Commodore 915 Floppy Drive

No special procedures are required to install the Commodore 915 3.5 inch 1.44 Mb as Drive B:; just follow the instruc tions in the manual. The first time you power up, use the Setup utility to identify your second drive (Diskette 2 on the menu) as a 1.44Mb, 3.5 drive.

USING 720 KB FLOPPY DISKS ON THE PC30-III SYSTEM

The floppy disk drive (Drive A:) is designed to make full use of 3.5 inch, double-sided high-density disks (DS/HD disks), which can be formatted to store ukp to 1.44 MB of information. This drive can also read and write the 3.5 inch, double-sided double-density disks (DS/DD disks), which can be formatted to store 720 KB of information.

USING THE SINGLE FLOPPY DRIVE AS TWO DRIVES

Even though the standard PC30-III configuration includes only one floppy disk drive, you can still type MS-DOS commands as if you had two floppy drives in the system. Just think of the single drive as being two drives — Drive A: and Drive B:. However, instead of A: and B: representing physical drives, they represent disks.

SPECIAL KEYBOARDS

The PC30-III MS-DOS software allows you to select any of the following keyboards, in addition to the U.S. keyboard. Just type the appropriate KEYB xx command at the MS-DOS prompt and press ENTER. In KEYB xx, xx is one of the following two-letter codes:

Code Keyboard Command

DV

Dvorak keyb dv

FR

France keyb fr

GR Germany

keyb gr

IT

Italy

keyb it

SP Spain

keyb sp

UK

United Kingdom

keyb uk

You should load only one keyboard program after starting MS-DOS. You can switch from the KEYB program to the default (United States) keyboard format at any time by pressing CTRL-ALT-F1. You can then return to the memory- resident keyboard program by pressing CTRL-ALT-F2.

If you include the appropriate KEYB command in your AUTOEXEC.BAT file, the correct keyboard assignment will

be made automatically whenever you boot MS-DOS.

For More Information About the Keyboard. . .

For more information about using the PC30-IIFs keyboard, see the KEYB command description in the MS-DOS Com

mands chapter of the MS-DOS User's Reference. Also see the user’s manuals for your software programs.

2-7

PC30-III SERVICE MANUAL

000000

09FFFF

0A0000

0BFFFF

ocoooo

0C7FFF OC8000

OEFFFF OFOOOO

640K RAM

VIDEO RAM

VIDEO BIOS

OPTION ROMS

INTERNAL USE

n

1MB

0F8000

OFFFFF

100000

32K AT ROM BIOS

n

EXTENDED MEMORY

15MB

u

PC30-III MEMORY MAP

2-8

PC30-III SERVICE MANUAL

SECTION 3

TROUBLESHOOTING GUIDE

TECHNICAL SERVICE NOTES

WARNING: PC30-III PRINTED CIRCUIT BOARD CONTAINS CMOS CIRCUITRY, USE STATIC

PRECAUTIONS WHEN HANDLING OR SERVICING THIS PRODUCT.

IMPORTANT:

•PC30-III PCB’S RETURNED FOR CREDIT MUST BE SHIPPED IN AN ANTI-STATIC BAG, AVAILABLE THROUGH THE COMMODORE PARTS DEPT. ANY PCBS RETURNED FOR CREDIT BY SERVICE CENTERS WHICH ARE NOT PACKAGED CORRECTLY WILL BE SENT BACK TO THE SERVICE CENTER AND NO CREDIT WILL BE ISSUED.

•PC30-III HARD DRIVES RETURNED FOR CREDIT MUST BE INSERTED IN AN ANTI-STATIC BAG AND PACKED IN A COMMODORE SPECIFIED HIGH DENSITY FOAM SHIPPING BOX, BOTH AVAILABLE THROUGH THE PARTS DEPT. FAILURE TO DO SO WILL VOID WARRANTY.

COMPONENT REPAIR:

PC30-III MAIN BOARD IS A MULTI-LAYERED PCB ASSEMBLY. COMPONENT REPAIR BEYOND THE SOCKETTED CHIP LEVEL RESULTING IN NON-REPAIRABLE DAMAGE WILL VOID WARRANTY. USE STATIC PRECAUTIONS WHEN SERVICING THIS PCB ASSEMBLY.

PC30-III SERVICE MANUAL

TROUBLESHOOTING ERROR MESSAGES

Troubleshooting Guide

Error Messages

1. DMA 1 error

2. DMA 2 error

Interrupt controller 1 error

3.

4. Interrupt controller 2 error

5. PIO error

6. Parity error

7. Real time clock is not working

8. Illegal shutdown code in CMOS

Virtual Mode CPU error

9.

Parity error on main circuit board

10.

Parity error on expansion bus

11.

Non-recoverable error-Processor halted

12.

Customer Response

See your dealer Test OB

See your dealer Test 0C

See your dealer Test 0D

See your dealer

See your dealer Test OF

See your dealer Test 10

See your dealer

See your dealer Misc

See your dealer

See your dealer Misc

Service POD Test (H)

Test 0E

Test IE

Test 02

Test 26

Misc

Press FI key to continue

13.

14.

Battery Failure

Base memory configuration error

15.

Extended memory configuration error

16.

17.

Floppy 0 configuration error

18. Floppy 1 configuration error

19. Coprocessor (80287) configuration error

20. The realtime clock has not been initialized

21. Keyboard Check keyboard Test 14

22.

Key switch is off. Turn it on to continue Turn keylock on

23.

Boot failure, check disk and hit any key to try again

Press FI key

Run Setup Utility/See your dealer

Run Setup Utility

Run Setup Utility Test 18

Run Setup Utility

Run Setup Utility Test 1A

Run Setup Utility Test ID

Run Setup Utility Test IE

Check for non-MS-DOS disk in

Drive A:; run Setup Utility

Misc

Test 11

Test 17

Test 1A

Misc

3-1

PC30-III SERVICE MANUAL

POWER ON DIAGNOSTICS

PC30-III Trouble Shooting — Section 3

The Commodore 80286 ROM bios contains a “Power on Diagnostic” program which tests the functions of hardware and checks the configuration prior to passing control to the operating system.

The number of the test routine being run is passed to addr 03 78 (H) prior to the start of each test section. The 80286 processor is initialized by the “ RESET” signal. Refer to RESET description in IC pinout section, note

that “ VCC” and “CLK” to CPU must be correct and “HOLD” must not be active for 34 ticks from leading edge to trailing edge of initial reset.

RESET will terminate all instruction execution and local bus activity until it is negated. Prior to fetching, decoding and executing, the first instruction, located at physical address FF FF F0 (H), the 80286, in real address mode, pro cesses some micro code located in its internal ROM, this takes about 38 ticks.

Test 01 (H) 0000 0001 (B)

The first test performed by the power on diagnostic checks the 8088 flags, the arithmetic logical unit, and the CPU

registers. If a failure is detected in Test 01, a “HALT” instruction is executed. This will stop program execution and prevent

the CPU from using the local bus. The 80286 can be forced out of the halted state by “ RESET” , “ NMI” or “ INTR”

(when “ INTR” is used for RESTART, the interrupt enable bit of flag register must be on (set to 1), and the effective

address computed from CS:IP will point to the next instruction after the halt instruction).

***Failure in test 01 indicates defective 80286.

Test 02 (H) 0000 0010 (B)

This routine checks to see if a “SHUTDOWN” has occurred. A shutdown can indicate a severe error which would prevent the CPU from further processing.

NOTE: A halt or shutdown condition is signaled externally, by the 80286 as a bus operation. Low states on SO', SI',

COD/INTA', and a high state on M/IO' indicate a halt or shutdown. The state of address line 1 will indicate which condition, A1 high is halt, A1 low is shutdown.

After the test number is moved to the parallel port a check for keyboard reset is conducted and the program branches to test 04 (H) if it has.

The check for shutdown begins by examining the 8242 keyboard controller status port. In all ten shutdown conditions are tested, of these, three unexpected shutdown conditions, numbers 6, 7 or 8, any one of which if true, will generate

the console message:

“ Illegal Shutdown Code in CMOS”

NOTE: Branch information for shutdown routines are stored in CMOS memory. The shutdown command is sent to the

8242, the UPI status port, which will halt the CPU. Return depends on the shutdown code in CMOS memory.

An error code, F6, F7 or F8, (HEX) is sent to the parallel port before calling the display routine which generates the above message.

In real address mode a shutdown could occur under the following conditions:

Interrupt number 8, interrupt number 13, or a “CALL INT” or “ PUSH” instruction which wraps stack segment

when SP is ODD.

Routines also perform valid shutdowns to exit protected mode. During these the DMA page register will be initialized and interrupt control words (ICW) 1, 2, 3 and 4 will be reinitialized. Other routines within the test enable “ NMI” , parity and set the I/O check bit.

***Failures in test 02 could indicate problems on the local bus, or expansion bus. This would include: 80286, FE3000,

FE3010, or any third party cards.

Test 03 (H) 0000 0011 (B)

Eprom checksum test verifies contents of eprom by adding bytes and checking for result of zero. A compensation

byte is factored into the addition to make the sum zero.

Detection of an error results in a halt condition and would invalidate tests 01 and 02.

***Failure in test 03 indicates defective ROM.

3-2

PC30-III SERVICE MANUAL

Test 04 (H) 0000 0100 (B)

Test 04 checks the DMA page registers by writing and reading bits starting at address 80 (H). ♦ ♦♦Failure in test 04 indicates possible defective FE3010, or local bus.

Test 05 (H) 0000 0101 (B)

Timer 1 and timer 2 are checked for correct operation. Interrupts are masked off during the test.

♦ ♦♦Failure in test 5 indicates possible defective FE3010.

Test 06 (H) 0000 0110 (B)

Memory refresh test. Timer and DMA are setup to initiate refresh cycles every 15.1 microseconds. Size of virual memory

is calculated.

♦ ♦♦Failure in test 06 indicates possible FE3010, Refresh logic or memory problem.

Test 07 (H) 0000 0111 (B)

Test 07 checks the 8242 keyboard controller by writing and reading the keyboard buffers.

♦ ♦♦Failure in test 07 indicates possible defective 8242 or associated circuitry.

Test 08 (H) 0000 1000 (B)

Test 08 writes and reads the first 128K of RAM and verifies block size is 128K. First pass writes addresses into data,

the second pass writes the complement of the address into data. Memory is cleared after test. The battery status is

also confirmed in test 08.

♦ ♦♦Failure in test 08 indicates possible defective RAM or RAM logic.

Test 09 (H) 0000 1001 (B)

Test and configure video. A search is made to determine if MDA, CGA or a special video adapter is configured, if

not the onboard VGA is enabled and a call to VGA bios is executed. The dip switches are read to determine the default

video mode.

NOTE: The mode register setting in the 5720 controls the reset signal to the onboard VGA controller chip. If no special

video adapters are found on the expansion bus then “NOVID” ’ from the 5720 to the PVGA is negated.

On completion of this test the title and copyright message are displayed.

Test 0A (H) 0000 1010 (B)

Test RAM from 128K to 640K. A display message is generated indicating that the base RAM of 128K, Test 08, is OK.

Blocks of 128K, starting at 128K are then tested by writing, reading and verifying RAM. The first pass writes addresses to data, that is, the address which defines the physical location is also used as the bit pattern that is being written. The second pass writes complement of address into data.

The test displays results in blocks of 128K to the console each time a 128K boundary is reached.

At completion of the onboard memory test the CPU is placed in virual mode and a test for virtual memory (over

1 MEG) is started.

NOTE: See test 26 (H).

♦ ♦♦Failure in test 0A indicates a defective RAM.

Test 0B (H) 0000 1011 (B)

DMA controller #1 register check. NOTE: Error messages beginning with this test appear in the PC30-III Operators Guide.

Four current address registers (16 bits wide, each) and four current word count registers (16 bits wide, each) for each

of the four DMA channels are written to and read from to verify operation.

A failure in test 0B will generate the following display on the console:

“ DMA 1 error” The beeper will sound, and a halt instruction will be executed. ♦ ♦♦Failure in test 0B indicates A defective FE3010.

3-3

PC30-III SERVICE MANUAL

Test OC (H) 0000 1100 (B)

DMA controller #2 register check. The second functional 8237 containing four current address registers (16 bits wide, each) and four current word count registers (16 bits wide, each) within the FE3010 are written to and read from to verify operation.

Successful completion of the test OC will set the modes for DMA channels 0 through 3 and enable cascading by chan nels 4, 5 and 6 (DMA 1).

A failure in test OC will generate the following display on the console:

“ DMA 2 error”

The beeper will sound, and a halt instruction will be executed.

***Failure in test OC indicates a defective FE3010.

Test OD (H) 0000 1101 (B)

Interrupt controller #1 test. Patterns are written to, and read from the interrupt mask register (IMR) which controls

the interrupt request register (IRR). A verification is made that no interrupts can occur if “ IMR” is set to FF (H). A vector is initialized to a temporary

interrupt service routine in the event of a failure. A test for correct timer 0 interrupt is also made. A failure in test OD will generate the following display on the console:

“ Interrupt controller 1 error”

The beeper will sound, and a halt instruction will be executed.

***A failure in test OD indicates a defective FE3010.

Test OE (H) 0000 1110 (B)

Interrupt controller #2 test. The second functional 8259 contained in the FE3010 is tested as in test OD, without timer test. A failure in test OE will generate the following display on the console:

“ Interrupt controller 2 error”

The beeper will sound, and a halt instruction will be executed.

***A failure in test OE indicates a defective FE3010.

Test OF (H) 0000 1111 (B)

Check peripheral in/out register. Write and read from PIO register. A failure in test OF will generate the following display on the console:

“ PIO error”

The beeper will sound, and a halt instruction will be executed.

***A failure in test OF indicates a defective FE3010.

Test 10 (H) 0001 0000 (B)

RAM parity test. Blocks of RAM are written to and read from, parity check for odd parity is made. Parity disabled

after successful test. NOTE: PC30-III does not use parity, third parity boards that use parity will enable parity.

“ NMI” is enabled and a service routine for a parity error generates the following console message.

“ Parity error”

The beeper will sound, and a halt instruction will be executed.

***Failure in test 10 indicates a defective RAM, third party card, NMI, or local bus.

Test 11 (H) 0001 0001 (B)

Test CMOS clock for battery failure and checksum failure. Beeper will sound if failure is detected. Console will display:

“ Battery failure” or “CMOS checksum failure” or both.

***Failure of test 11 indicates a defective battery, defective oscillator, or M146818A.

3-4

PC30-III SERVICE MANUAL

Test 12 (H) 0001 0010 (B)

This test is disabled. It is used only in manufacturing tests. The beeper will sound for a set length prior to the start of test 13 (H). In a system which has passed all tests to this

point the beeper sound heard now would be the one heard in the power up routine.

Test 13 (H) 0001 0011 (B)

Setup interrupt controller and move vector tables to RAM. Vector addresses are fetched from top 8K module. NOTE: Vectors for video were setup in test 09. Master and slave interrupts are enabled at this point. Test 13 does not create any error messages.

Test 14 (H) 0001 0100 (B)

Keyboard test. Functional test of the 8242 keyboard controller at U203. A test for a stuck key on keyboard is performed. Check is made to see if key lock is locked.

A failure in test 14 will display the following error message on console:

“Keyboard error”

***Error indicates a defective 8242 controller or a defective keyboard.

Test 15 (H) 0001 0101 (B)

Test and configure the parallel port. Parallel port addresses are setup, reads and writes to ports are done. Set time out.

No error messages are generated by this test.

NOTE: PPC1 at U602 controls parallel output.

Test 16 (H) 0001 0110 (B)

Configure serial COM1 and COM2 for 8250 at U604. Read serial interrupt ID, set number of serial channels. No error messages are generated by this test.

Test 17 (H) 0001 0111 (B)

Configure memory less than 640K. Parity (for EXPANSION RAM) is enabled. Memory was tested in test 0A, and “CMOS STATUS” set. A check for a warm boot (ALT/CNTRL/DEL) is made

and a comparison of the old and new memory configuration is performed. If a memory size mismatch is detected, the beeper will sound and the following non-fatal error message will be displayed on the console:

“Base memory configuration error” The new configuration is stored. ***Check the settings for RAM size in the setup utility if you encounter this message.

Test 18 (H) 0001 1000 (B)

Configure memory over 1 megabyte (virtual memory). Check is made on address line 20, a low indicates virtual ad dress mode.

CMOS status is checked as in test 17, a memory size mismatch will sound the beeper and generate the following non-

fatal error message on the console:

“Extended memory configuration error”

The new configuration is stored.

***Check the settings for RAM size in the setup utility if you encounter this message.

Test 19 (H) 0001 1001 (B)

Configure keyboard test. Setup keyboard buffers, enable keyboard interrupt and test if key switch is turned to the on position.

If the key switch is off the following message will be displayed on the console:

“ Key switch is off. Turn it on to continue.”

NOTE: You are in a loop until you turn on the key switch.

3-5

PC30-III SERVICE MANUAL

Test 1A (H) 0001 1010 (B)

Configure the floppy disk drive. Calculate number of floppy drives present. Check drive type, compare settings stored

in CMOS, if a mismatch the following message will be displayed on console:

“Floppy 0 configuration error”

***Check settings in setup utility if above message is displayed.

Test checks second floppy configuration, if a mismatch the following message will be displayed on the console:

“Floppy 1 configuration error”

***Check settings in setup utility if above message is displayed.

New configuration is stored in CMOS. Floppy interrupt is enabled. NOTE: Refer to installation instructions when adding a second floppy to the system. It may be necessary to change

jumpers on drive for proper operation.

Test IB (H) 0001 1011 (B)

Configure the hard drive. Check configuration if a mismatch hard drive will not be setup. No error message is generated.

Test 1C (H) 0001 1100 (B)

Test number is not moved to parallel port for this configuration. This routine only turns on the game card bit in the

“EQUIP FLAG” .

No error message is generated.

Test ID (H) 0001 1101 (B)

Configure 80287 coprocessor. Check if 80287 is present. Enable 80287 interrupt and set “EQUIP FLAG” if it is. Compare configuration with CMOS, store new configuration, beep the speaker, and display the following message

is setup changed.

Coprocessor (80287) configuration error”

***Check setup utility for correct settings if this message is displayed.

Test IE (H) 0001 1110 (B)

Check CMOS clock to see if it was initialized and is working. Enable timer interrupt. Sound beeper, and initialize if failure detected, then display one of the following messages on the console:

“~ The Real Time Clock has not been initialized”

OR: Real Time Clock error”

***Check the RTC chip, M146818A at U201 if second message above is displayed.

Test IF (H) 0001 1111 (B)

Generate a new CMS checksum and save it in CMOS RAM. Call made to auto configuration program at this point.

No error message generated.

Test 20 (H) Not Implemented Test 21 (H) 0010 0001 (B)

Initialize ROM drivers, including hard drive. Checksum generated, and all ROMS tested. System will now begin boot up. System speed is determined, 6 MHz, 8MHz or 12MHz. ♦ ♦♦Refer to operations manual for opening screen display.

Tests 22, 23 Not Implemented

3-6

PC30-III SERVICE MANUAL

Test 24 (H) 0010 0100 (B)

Test operation of the RTC chip. Recheck battery, make sure clock is counting, test memory. System will execute a halt instruction on memory failure. No error message is generated.

Test 25 (H) 0010 0101 (B)

Used in manufacturing to loop through diagnostics.

Test 26 (H) 0010 0110 (B)

Virutal memory test (over 1 megabyte). Call made to this routine from test 09. Display Message: “Testing Extended RAM”

Display Message: “Total System RAM = XXXX” at finish. During this test the exception interrupt vector tables and descriptor tables are built, and moved from ROM to RAM. A test of address line 20 is made (controls real or virtual CPU mode). If not in virtual mode display following message:

“Test _ 26: Virtual Mode CPU error” And send F3 (H) (1111 0011 to parallel port. Then execute a halt instruction. Test address lines 19 through 23 are tested. Shutdown if error. Exception interrupt codes are moved to the parallel

port prior to shutdown. The following list defines the code sent to the port and the type of exception interupt ( EXECP INT ).

81

(H)

EXECP INT 01

Single Step

82

(H)

EXECP INT 02

NMI

83

(H)

EXECP INT 03

Breakpoint

84

(H)

EXECP INT 04 Into Detect

85

(H)

EXECP INT 05

Boundary

86

(H)

EXECP INT 06 Invalid OP Code

87

(H)

EXECP INT 07

—

88

(H)

EXECP INT 08 Double Exception

89

(H)

EXECP INT 09

Processor Segment Error

8A

(H)

EXECP INT 10

—

8B

(H)

EXECP INT 11 Segment Not Present

8C

(H)

EXECP INT 12 Stack Segment Not Present

8D

(H)

EXECP INT 13 General Protection Error

8E

(H)

EXECP INT 14

—

8F

(H)

EXECP INT 15

—

90

(H)

EXECP INT 16

Processor Extension Error Power on diagnostic program is finished at the time of boot up ( end of test 21 ). Note that during execution of “POD” calls are made to auto configure and to miscellaneous interrupt routines. All error messages are listed in the PC30-III Operators Guide.

10 “ Parity error on main circuit board” 11 “ Parity error on expansion bus” 12 “Non-recoverable error - Processor halted” 13 “Press FI key to continue”

Messages 10, 11 are generated after a parity error has been detected and a memory check has determined that it was on the main board, or the expansion bus. If the check finds the error the CPU is halted and message 12 is displayed. If no error is found after the check, message 13 is displayed and processing will continue.

PC30-III SERVICE MANUAL

SECTION 4

PARTS SECTION

PC30-III MAJOR PARTS LIST

Refer to Service Reference Diagram

1. Top Cover

2. Mounting Bracket

3. PBC Guide

4. Main Chassis Base

5. Foot

6. Bezel

7. Plate Logo

8. Name Plate

9. FD Hole Cover

10. LED Power On

11. LED Hard Drive

12. Power Supply Assy.

13. Floppy Disk Drive 1.44mb

14. Hard Disk Drive 20mb

15. Extension Card Panel

16. Keyboard Assy.

17. Floppy Drive Cable

18. Hard Drive Cable

19. PCB Assy. Ground Cable (HD) Power Cord EGA Card Standoff Hex Standoff Standoff ‘D’ Conn. Standoff Video ‘D’ Conn.

312226-03 (UL, CSA) 312226-02 (VDE)

313066-02 Sub:-01 251118-01 312225-01 380128-01 312399-02 380133-05 316468-04 312679-01 380016-03 380020-04 390269-01 (VDE, BSI, SEV, SAA)

390269-02 (UL, CSA) 313067-01 313233-01 380120-01

523103 380012-08 312695-01 313235-01 /-02 380811-01 (Not shown) (Not shown) 380080-01 (Not shown) 312689-02 (Not shown) 390266-05 (Not shown) 390251-01 (Not shown) (Not shown)

©

TOP COVER

312226-03

(UL, CSA)

MOUNTING

BRACKET

313066-02

PBC GUIDE

251118-01

MAIN CHASSIS

BASE

312225-01

FOOT

380128-01

BEZEL

312399-02

PC30-III SERVICE MANUAL

POWER SUPPLY

390269-01

(VDE, BSI, SEV, SAA)

FLOPPY DISK

DRIVE

313067-01

FD CABLE

380012-08

4-1

PC30-IH SERVICE MANUAL

COMPONENT PARTS LIST PCB ASSEMBLY #313235-01

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. are available in manual form through the Service Department, order #314000-01.

IC COMPONENTS RESISTORS

5% @ 1 /4 W A T T

390300 -04

80286 12 M HZ P R O C E S S O R

U301

901550 -39 CA R B O N F ILM , 3 .9K O H M R 1203

309316-01 FE30 00A

U801

901550 -64 CA R B O N F ILM , 10 OH M

R50 3-R50 6,R210-R212

390317-0 1 FE30 10A

U802

901550-105

C A R B O N F ILM , 33 OHM

R6 03 ,609,701

390319-0 1

FE 302 0

U3 03

90 15 50 -9 4

C A R B O N F ILM , 68 OH M

R1001 ,R 209

390318-0 1

FE 303 0

U304

901550-45 CA RB O N F I LM , 75 O H M

R801 ,R 4 1 1

318091-01

PPC 1, P R I N T E R I N T E R F A C E

U602

901550 -124 C A R B O N FILM , 160 O H M

R1201

390304-03

W D 37C 6 5, F L O P P Y C O N TR O LL E R

U1001

901550-52 CA R B O N F ILM , 220 O H M

R8 04, R 90 2, R507 , R207 ,

380205-01

8250, SERIA L IN T E R F A C E

U604 R2 14

390417-01

D S 1287 R T C / C M OS RA M U201

901550 -12 CA R B O N F ILM , 22K OH M

R1 20 2

390580-01 P824 2 KE Y B R D C ONTR O L U203 901550-01

C A R B O N F ILM , IK O H M

R12 1,510 ,R 204 ,4 07,70 2,

31808 7-01 MOS 5720 , M OU S E -I/ O CON T R O L U601

12 04,4 12,502,508,1003 ,

390308-01

PAL20 L 10 I/O DECO D E R U401

1004

390336-02

PAL20 L 10 H D C D E C O DE R U 905 901550-18 CA R B O N F ILM , 2.2K O H M

R604,R6 08

390309-02 PAL16 L 8 DRAM D E C O D E R

U706

901550-19

CA R B O N F ILM , 4.7K O H M

R10 5,R40 4,R 413 ,4 14,

318099-02

D R A M , 256 X 4 (1 M EG BIT DRA M ) U707-U7 14 R606 ,9 0 1, R8 03 , R 1002,

@ 100NS

R90 4,80 6,R 406 ,R 5 09,

390339-02 EPR O M 3, PC 4 0 III BIOS - LO W

111 101

R903 ,8 1 1

(21728-12)

901550-03

C A R B O N F ILM , 5.IK O H M R 805

390342-03

EPR O M 4, PC 4 0-III BIO S - H I G H

U 1102

901550 -20

C A R B O N F ILM , 10K OHM

R202, R 501, R60 5,90 5,

(2712 8-12)

30 2,R 703 ,R 704

90 15 21 -0 2 74 LS04 U206 901550-84 C A R B O N FILM , 1M OHM

R20 3, R 601, R602, R 80 7,

90 15 21 -3 0

74LS14 U501 205

90 15 21-2 0

74 LS1 25A

U20 5,U41 4

901600-28

C A R B O N F ILM , 2.2 OH M , 1 /2W 5 %

R20 8,R61 0

901521-63

74 LS174 U 113 901550-17 CA R B O N F ILM , 1.2 O HM R 12 05

901521-13

74 LS244

U90 1,U90 2

90 15 50-1 10

C A R B O N F ILM , 51 OHM

R9 07

90 1521-4 6

74LS 24 5

U50 2.U603 901550 -92 CA R B O N F ILM , 20K OH M R 301

318066-01 74F 00

U41 5,U 720 ,U 7 21,U80 7

90 15 50 -7 0

C A R B O N F ILM , 300 O HM R80 9

390110-01

74 F04 U41 3,U71 5, 901600-28

CA R B O N F ILM , 2 .2 O HM R20 8,R61 0 390203-01 390313-01

74F0 8 74 F10

U40 9,U71 8,U 719,U 120 1 U7 17

RESISTORS 1% @ 1/ 4 W ATT

901751-44 CA R B O N F ILM , 150 OHM

R20 6,R 1005,1006

390279-01

.390077-01

74 F20 74 F32

U1204 U30 5.U41 6

90 17 51 -7 0

C A R B O N F ILM , 210K O H M

R201

390080-01 74F 13 8

U80 3,U12 02

RADIAL CERAMIC CAPACITORS 5 % @ 50 VO L T

390611-0 1 74F153 U403

900019-13

R A D IA L LEA D , 22p F

C60 1,C 402

390312-01 7 4F175

U404 9000 19 -25

R A D IA L LEAD , 27p F

C20 2

390109-01 7 4F240

U704 900019-17 R AD I A L L E A D , 47pF

C204 ,C 205 ,C6 02,C80 2-

390314-01

74F2 53

U701

C804

390315-01

74F2 58

U70 2,U703

900 0 2004 RA D IA L CE R AM IC .004 7uF C201

390578-01

74F5 73

U705,U1205 900019-15 RA D IA L LEAD , lOOpF

C 603, C 6 21-6 26,C 514-

390198-01 7 4F86

U4 07

C532

318828-01

74 H C T 244

U106

90001 9-21 R A D IA L LEAD , lOOOpF

C20 6,C 627 ,C 2 07

390089-01 74F 245

U90 3,U90 4

900022-03 M O N O. , R AD I A L L E A D , .l u F

C203 ,C B 2031-2034,

390310-0 1

74 H C T 74 U41 2,U 411 .U 7 16 CB 205 ,CB20 6,C B 3011,

390579-01

74 A LS2 44A

U402

C B 3 0 12,CB302 ,C B 3 0 31 - 90 15 22 -0 6 7406 U1002 303 9,C B 304 1-3048, 390081-01

74 F74

U40 5,U 406 ,U 408

C B 4 0 1,402,408,412,414, 390323-01 4 06 9 U204 CB 501 ,C B 502 ,CB60 11, 901527-03 790 5

VR501

CB6 012 ,C B 602 -6 05, 390364-01 74L S1 75

U1 20 3

C B 6051 ,C B 605 2,CB70 6, 90188 2-01 1488

U6 05

CB 716 ,C B 7 2 2,C B 801 1, 90188 3-01 1489

U606

CB80 12 ,C B 802 1,

CRYSTAL

, OSCILLATORS

CB8 022 ,C B 902 ,1 001,

C B 901,CB905 ,116,

C B 1002 ,1121,C B 1 101,

CB1 102

CB7 23- 726 ,707 -714,403-

390273-01

O S C ILLA T O R , 48.00 M H Z

OSC401

325566 -10

O S C ILLA TO R 16.00 M HZ OS C40 2

325566-01

O S C ILLA T O R , 16 M HZ

SU B

900022-05 M O N O. , RADIA L L E A D , 3 3uF

325566-17

O S C ILLA T O R , 9.6 M H Z

OSC1001

40 7 ,4 09- 411 ,C B 41 5,

CB41 6,C B 701 -7 05,7 15,

71 7-721 ,8 03,CB 903 ,

90 4,12 01-12 05,4 13,

900560-01 900556-13 900558-01

C R Y S T A L , 3 2.768 K H Z C R Y S T A L , 1.8 MH Z C R Y S T A L , 14.318 M H Z

Y201 Y601 Y801

RESISTOR NETWORKS

CB305 90244 1-11

150 O H M 6 P , 5 EL SIP

RP 1001

900022-01 M O N O ., RADIA L L E A D , ,2 2uF

C51 1,C B 126 90 24 42-0 6 902422-03 90 24 22 -0 2

68 O HM , 8PI N , 4 ELEM E N T R P 7 0 1,702

ELECTROLYTIC CAPACITORS

33 O H M , 8 P IN, 4 E L E M E N T, SIL

IK OH M , 8 PI N , 4 EL E M EN T, SIL

RP60 2 ,R P 7 03,RP70 4 RP801

390101-08 390101-05

E L E C T ., A L U M., RA D IA L, lu F C A P E L E C T ., TA N , lOuF

C50 7,C51 3

C208 90244 1-31

902442-55

4.7K 6 P IN , 5 EL EM EN T , SIP

4.7K, 8 PIN , 7 ELEM E N T , SIP

RP107,20 1,304,604 RP303 ,6 03,605

390101-01

E L E C T ., A L U M., R A D IA L , 47u F C5 01- C50 6,C 508-C 510 ,

C512

C l 202

902410 -08 902410 -07

4.7K, 10 P IN, 9 E L E M EN T, SIP 10K , 10 PI N , 9 EL E M EN T, SIP

R P 3 0 1,302 RP5 02,5 07

390101-06 EL EC T ., A L UM ., RADIA L lOuF

902441-15

330 OH M , 6 PI N , 5 EL E M EN T, SIP

RP508

4-2

PC30-III SERVICE MANUAL

COMPONENT PARTS LIST

PCB ASSEMBLY #313235-01 (Continued)

MISCELLANEOUS

MISCELLANEOUS (Contin u ed)

251842-02 EM I FIL T E R 100P F

EM I6 24- 163 1J2 01

390242-01 D -SU B , 9 P IN, R T . ANG L E M A L E CN601

390257-01 EM I FIL T E R 22 0 00P F

EM 11203

390242-0 5 D-SU B , 25 PIN , R T. A N G LE M A L E CN6 03

39029 7-03 E M I F ILTE R 220 0PF

EM 120 L20 2

390241-0 5 D-SU B , 25 PIN , TR. A N G LE F E M A L E CN 6 02

390275-04

EM I F IL T E R 150 P F

EM 1607-623

903446-25 EX PA N SION C O N NE C TO R, 62 P IN CN 501 ,C N 5 03,CN50 5 ,

903025-08 FE R RI T E BEADS (A XI A L )

FB 4 03 ,4 04,10 01

CN507

903025-01 FE R RI T E BEADS (A XI A L )

FB4 05-409,FB 205 ,207 ,

903446-04

EX P A N S IO N C O N NE CT OR , 36 PIN

CN 502 ,CN50 4,C N 5 06

FB 902, FB 1201, FB50 1,

25216 6-03 DIN, TK PIN , R O U N D , FEM A L E CN2 01

FB 502, FB 8 0 1, FB8 02 ,

252122-01 J A C K , R CA RT. AN G L E , FEM A L E C N1201

FB90 1,601-608

903326-03 HEA D E R , 3 PI N , S IL CB90 2 ,J M P 9 04,C N 5 12,

390253-02 F E R RI T E B EADS T H REE TU R N

FB20 1-204

CN2 02

900850-01 DIO D E 1N4148

CR 20 1 ,C R 2 02,CR 501 ,

903326-02 HEA D E R , 2 PI N , S IL

JM P9 0 3 (R EM O V E

CR50 2,C R60 1-C R 603

PI3 F O R K EY) 701,702

380393-01

BA TTERY , N IC A D 3.6V

BT2 01,B T 202

903345-17

H E A D ER , 34 PI N , DI L CN 1001

390280-01 F U SE, P I C O , 4A

FU601

903345-20 HEA D E R , 40 P IN , DIL

CN 901

390321-01 D E LAY L INE 10 TA P @ 20 NS

DL701

903349-01

PO W ER C O N NECTO R , 6 PI N .

CN50 9

902658-01 T R A NSI S T O R 2N3 90 4

Q60 1,Q801,Q1201

390043-01 S H O R TIN G B L O C K S, 2 POS.

JM 904

312680-01 P IE Z O B E E P E R QM B 12

PZ801

390186-01

JUM PE R

R810

251260-01 P U S H BU T T O N N.O . SW ITCH

PB501

SUBSTITUTE PARTS

904775-01

PIA NO D IP S W IT C H , 1 PIN , 4 POS. SW101

390341-01 IC, 8742 MIC R OC NT R L E P R O M

U2 03 SU B:

904150-05

SOCK E T , 28 PIN , D IP

U 108,109,U 1101 ,U 1102

390317-01

IC , FE 30 10A U802 SU B :

904150-06 SO C KE T , 40 P IN, DIP

U3 02

390304-01 IC, W D 37C 65

U1001 S U B:

390185-02 S O C K E T , 68 P IN , PLCC

U301,U 601

390304-02

IC, W D3 7C6 5A

U1001 S U B:

390185-01

SOCK E T , 84 PIN , P L C C

U30 3,304,801,802

380259-01 IC, M 146818A R T C /C M OS RA M U201 SU B:

PCB ASSEMBLY #313235-02

PCB ASSEMBLY 313235-02 has the same components as -01 with the following additions or omissions.

ADDITIONS AND OMISSIONS

390083-04 IC , DRA M 64 x 4 100 NS

U70 9,710,713 ,7 14

390083-05

IC, D R A M 64 x 4 80 N S

SU B : -0 4

901550-19

RESIST O R , CARBO N F IL M 4.7K O H M R 109.110

901550-01 R ESI STOR, CARB O N F IL M IK O H M

FOR -01 LIST O MIT R1204 .R 120

A D D FOR -01 R720.R1 06

O M IT FR O M -01 R1205 .E M I12 01,

Q1201 .C N1201

SOFTWARE SUB-ASSEMBLY (CANADA)

315900-02 PC30-II1 SOFTWARE SUB-ASSY (CAN)

319293-01 DOS 3.30A MANUAL (ENGLISH) 319292-01 BASIC 3.22 MANUAL (ENGLISH) 363204-01 OPERATIONS GUIDE (ENGLISH) 318896-01 PROGRAM LICENSE AGREEMENT 317812-01 DISK ASSY (DOS3.30/BASIC3.22/EGA800OUTIL)

318556-02 DISK EXCHANGE CARD (CANADA) 318882-01 WARRANTY CARD (CANADA)

SOFTWARE SUB-ASSEMBLY (CSA 5V4" FDD)

315900-05 PC30-III SOFTWARE SUB-ASSY (CSA 5 'A" FDD)

319293-01 DOS 3.30A MANUAL (ENGLISH) 319292-01 BASIC 3.22 MANUAL (ENGLISH) 363204-01 OPERATIONS GUIDE (ENGLISH)

318896-01 PROGRAM LICENSE AGREEMENT 318556-02 DISK EXCHANGE CARD (CANADA) 318882-01 WARRANTY CARD (CANADA) 318611-01 STOP LABEL 318843-01 DISK FOLDER 317847-01 DISK ASSY DOS 3.3/GWBASIC 3.22

EGA 800-(-ENGLISH

4-3

PC30-III SERVICE MANUAL

523003-01

319970-03 324408-04 318892-01 313231-01 312206-01 324257-01 903508-11 320046-06 380565-01

523003-02

319970-03

324408-04 318892-01 313231-01 312206-01 324257-01

903508-05

380565-01

523003-03

319970-03 324408-04 318892-01 313231-01 312206-01 324257-01 903508-02 380933-01 380565-01

523103-01

319968-01 380425-04 320408-01 325108-03 363217-01 317812-01 312702-01

319293-01 319292-01 363204-01

523103-02

319968-01 380425-04 320408-01 325108-03 363217-01 317813-01 312702-05 319285-01 319289-01 363204-02

INTERNATIONAL SHIPPING ASSEMBLY

PC30-III SHIPPING ASSY (EUROPEAN)

PACKING BOX, CPU BAG, FLAT 650 X 650 MM END CAP SUB: 312206-01 MAIN ASSY PC30-III VDE, BSI & SEV END CAP SET BAG, DRYING AGENT POWER CORD (VDE) WARRANTY CARD (GERMAN) LEAFLET “ CAUTION RUN SHIPDISK”

523003-04 SHIPPING ASSY, PC30-III (FRENCH)

319970-03 PACKING BOX, CPU 324408-04 BAG, FLAT 650 X 650 MM 318892-01 END CAP SUB: 312206-01 313231-01 MAIN ASSY PC30-III VDE, BSI & SEV 312206-01 END CAP SET 324257-01 BAG, DRYING AGENT 903508-11 POWER CORD (VDE) 320046-06 WARRANTY CARD (FRENCH) 380565-01 LEAFLET “CAUTION RUN SHIPDISK”

SHIPPING ASSY, PC30-III (U.K.)

PACKING BOX, CPU BAG, FLAT 650 X 650 MM END CAP SUB: 312206-01 MAIN ASSY PC30-III VDE, BSI & SEV END CAP SET

BAG, DRYING AGENT

POWER CORD (BSI)

LEAFLET “CAUTION RUN SHIPDISK’’

523003-05 SHIPPING ASSY, PC30-III (CEL)

319970-03 PACKING BOX, CPU 324408-04 BAG, FLAT 650 X 650 MM 318892-01 END CAP SUB: 312206-01 313231-01 MAIN ASSY PC30-III VDE, BSI & SEV 312206-01 END CAP SET 324257-01 BAG, DRYING AGENT 903508-11 POWER CORD (VDE) 380565-01 LEAFLET “CAUTION RUN SHIPDISK’’

SHIPPING ASSY, PC30-III (SWISS)

PACKING BOX, CPU BAG, FLAT 650 X 650 MM END CAP SUB: 312206-01 MAIN ASSY PC30-III VDE, BSI & SEV END CAP SET BAG, DRYING AGENT POWER CORD (SEV) WARRANTY CARD (SWISS) LEAFLET “CAUTION RUN SHIPDISK’’

INTERNATIONAL KEYBOARD ASSEMBLY

KEYBOARD PC30-III (U.K.)

PACKING BOX SUB: 380425-04 PACKING BOX (BLACK IMPRINT) POLY BAG FOR DISK 108 X 205 MM LABEL, STOP FOR POLY BAG MANUAL, EGA - WONDER 800 +

DISK ASSY, DOS 3.30A/GW BASIC 3.22 (ENGLISH) KEYBOARD ASSY (UK) INCLUDES PACKING MANUAL DOS 3.30A (ENGLISH) MANUAL BASIC 3.22 (ENGLISH) OPERATIONS GUIDE (ENGLISH)

523103-03 KEYBOARD PC30-III (GERMAN)

319968-01 PACKING BOX SUB: 380425-04 380425-04 PACKING BOX (BLACK IMPRINT) 320408-01 POLY BAG FOR DISK 108 X 205 MM 325108-03 LABEL, STOP FOR POLY BAG 363217-01 MANUAL, EGA - WONDER 800 + 317814-01 DISK ASSY, DOS 3.30A/GW BASIC 3.22 (GERMAN) 312702-03 KEYBOARD ASSY (GERMAN) INCLUDES PACKING 319284-01 MANUAL DOS 3.30A (GERMAN)

319288-01 MANUAL BASIC 3.22 (GERMAN) 363204-03 OPERATIONS GUIDE (GERMAN)

KEYBOARD PC30-III (FRANCE)

PACKING BOX SUB: 380425-04

PACKING BOX (BLACK IMPRINT)

POLY BAG FOR DISK 108 X 205 MM

LABEL, STOP FOR POLY BAG

MANUAL, EGA - WONDER 800 +

DISK ASSY, DOS 3.30A/GW BASIC 3.22 (FRENCH)

KEYBOARD ASSY (FRENCH) INCLUDES PACKING

MANUAL DOS 3.30A (FRENCH)

MANUAL BASIC 3.22 (FRENCH)

OPERATIONS GUIDE (FRENCH)

523103-04 KEYBOARD PC30-III (NETHERLAND)

319968-01 PACKING BOX SUB: 380425-04 380425-04 PACKING BOX (BLACK IMPRINT) 320408-01 POLY BAG FOR DISK 108 X 205 MM 325108-03 LABEL, STOP FOR POLY BAG 363217-01 MANUAL, EGA - WONDER 800 + 317815-01 DISK ASSY, DOS 3.30A/GW BASIC 3.22 (DUTCH) 312702-02 KEYBOARD ASSY (US ASCII) INCLUDES PACKING 319638-01 MANUAL DOS 3.30A (DUTCH) 319174-01 MANUAL BASIC 3.22 (DUTCH) 363204-04 OPERATIONS GUIDE (DUTCH)

4-4

PC30-III SERVICE MANUAL

523103-05

319968-01 380425-04 320408-01 325108-03 363217-01 317822-01 312702-04 319286-01 319290-01 363204-05

523103-06

319968-01 380425-04 320408-01 325108-03 363217-01 317823-01 312702-06 319287-01 319291-01 363204-06

523103-07

319968-01 380425-04 320408-01 325108-03 363217-01 317814-01 312702-07 319284-01 319288-01 363204-03

523103-08

319968-01 380425-04 320408-01 325108-03 363217-01 317813-01 312702-07 319285-01 319289-01 363204-02

523103-09

319968-01 380425-04 320408-01 325108-03 363217-01 317812-01 312702-09

319293-01 319292-01 363204-01

INTERNATIONAL KEYBOARD ASSEMBLY (Continued)

KEYBOARD PC30-III (ITALY)

PACKING BOX SUB: 380425-04 PACKING BOX (BLACK IMPRINT) POLY BAG FOR DISK 108 X 205 MM LABEL, STOP FOR POLY BAG MANUAL, EGA - WONDER 800 + DISK ASSY, DOS 3.30A/GW BASIC 3.22 (ITALIAN) KEYBOARD ASSY (ITALIAN) INCLUDES PACKING MANUAL DOS 3.30A (ITALIAN) MANUAL BASIC 3.22 (ITALIAN) OPERATIONS GUIDE (ITALIAN)

523103-10 KEYBOARD PC30-III (SWEDEN)

319968-01 PACKING BOX SUB: 380425-04 380425-04 PACKING BOX (BLACK IMPRINT) 320408-01 POLY BAG FOR DISK 108 X 205 MM 325108-03 LABEL, STOP FOR POLY BAG 363217-01 MANUAL, EGA - WONDER 800 + 317812-01 DISK ASSY, DOS 3.30A/GW BASIC 3.22 (ENGLISH) 312702-10 KEYBOARD ASSY (SWED/FIN) INCLUDES

PACKING 319293-01 MANUAL DOS 3.30A (ENGLISH) 319292-01 MANUAL BASIC 3.22 (ENGLISH) 363204-01 OPERATIONS GUIDE (ENGLISH)

KEYBOARD PC30-III (SPAIN)

PACKING BOX SUB: 380425-04 PACKING BOX (BLACK IMPRINT) POLY BAG FOR DISK 108 X 205 MM LABEL, STOP FOR POLY BAG MANUAL, EGA - WONDER 800 + DISK ASSY, DOS 3.30A/GW BASIC 3.22 (SPANISH) KEYBOARD ASSY (SPANISH) INCLUDES PACKING MANUAL DOS 3.30A (SPANISH) MANUAL BASIC 3.22 (SPANISH) OPERATIONS GUIDE (SPANISH)

KEYBOARD PC30-III (SWISS-GERMAN)

PACKING BOX SUB: 380425-04 PACKING BOX (BLACK IMPRINT) POLY BAG FOR DISK 108 X 205 MM LABEL, STOP FOR POLY BAG MANUAL, EGA - WONDER 800 + DISK ASSY, DOS 3.30A/GW BASIC 3.22 (GERMAN) KEYBOARD ASSY (SWISS) INCLUDES PACKING MANUAL DOS 3.30A (GERMAN) MANUAL BASIC 3.22 (GERMAN) OPERATIONS GUIDE (GERMAN)

KEYBOARD PC30-III (SWISS-FRANCE)

PACKING BOX SUB: 380425-04 PACKING BOX (BLACK IMPRINT) POLY BAG FOR DISK 108 X 205 MM LABEL, STOP FOR POLY BAG MANUAL, EGA - WONDER 800 + DISK ASSY, DOS 3.30A/GW BASIC 3.22 (FRENCH) KEYBOARD ASSY (SWISS) INCLUDES PACKING MANUAL DOS 3.30A (FRENCH) MANUAL BASIC 3.22 (FRENCH) OPERATIONS GUIDE (FRENCH)

KEYBOARD PC30-III (NORWAY)

PACKING BOX SUB: 380425-04 PACKING BOX (BLACK IMPRINT) POLY BAG FOR DISK 108 X 205 MM LABEL, STOP FOR POLY BAG MANUAL, EGA - WONDER 800 + DISK ASSY, DOS 3.30A/GW BASIC 3.22 (ENGLISH) KEYBOARD ASSY (NORWEGIAN) INCLUDES PACKING MANUAL DOS 3.30A (ENGLISH) MANUAL BASIC 3.22 (ENGLISH) OPERATIONS GUIDE (ENGLISH)

523103-11 KEYBOARD PC30-III (FINLAND)

319968-01 PACKING BOX SUB: 380425-04 380425-04 PACKING BOX (BLACK IMPRINT) 320408-01 POLY BAG FOR DISK 108 X 205 MM 325108-03 LABEL, STOP FOR POLY BAG 363217-01 MANUAL, EGA - WONDER 800 + 317812-01 DISK ASSY, DOS 3.30A/GW BASIC 3.22 (ENGLISH) 312702-10 KEYBOARD ASSY (SWED/FIN) INCLUDES

PACKING 319293-01 MANUAL DOS 3.30A (ENGLISH) 319292-01 MANUAL BASIC 3.22 (ENGLISH) 363204-01 OPERATIONS GUIDE (ENGLISH)

523103-12 KEYBOARD PC30-III (DENMARK)

319968-01 PACKING BOX SUB: 380425-04 380425-04 PACKING BOX (BLACK IMPRINT) 320408-01 POLY BAG FOR DISK 108 X 205 MM 325108-03 LABEL, STOP FOR POLY BAG 363217-01 MANUAL, EGA - WONDER 800 + 317812-01 DISK ASSY, DOS 3.30A/GW BASIC 3.22 (ENGLISH) 312702-08 KEYBOARD ASSY (DANISH) INCLUDES PACKING 319293-01 MANUAL DOS 3.30A (ENGLISH) 319292-01 MANUAL BASIC 3.22 (ENGLISH) 363204-01 OPERATIONS GUIDE (ENGLISH)

523103-13 KEYBOARD PC30-III (BELGIUM)

319968-01 PACKING BOX SUB: 380425-04 380425-04 PACKING BOX (BLACK IMPRINT) 320408-01 POLY BAG FOR DISK 108 X 205 MM 325108-03 LABEL, STOP FOR POLY BAG 363217-01 MANUAL, EGA - WONDER 800 + 317829-01 DISK ASSY, DOS 3.30A/GW BASIC 3.22

(DUTCH/FR)

312702-05 KEYBOARD ASSY (FRENCH) INCLUDES PACKING 319638-01 MANUAL DOS 3.30A (DUTCH) 319174-01 MANUAL BASIC 3.22 (DUTCH) 363204-04 OPERATIONS GUIDE (DUTCH)

523103-14 KEYBOARD PC30-III (CEL)

319968-01 PACKING BOX SUB: 380425-04 380425-04 PACKING BOX (BLACK IMPRINT) 320408-01 POLY BAG FOR DISK 108 X 205 MM 325108-03 LABEL, STOP FOR POLY BAG 363217-01 MANUAL, EGA - WONDER 800 + 317812-01 DISK ASSY, DOS 3.30A/GW BASIC 3.22 (ENGLISH) 312702-02 KEYBOARD ASSY (US ASCII) INCLUDES PACKING 319293-01 MANUAL DOS 3.30A (ENGLISH) 319292-01 MANUAL BASIC 3.22 (ENGLISH) 363204-01 OPERATIONS GUIDE (ENGLISH)

4-5

PC30-III SERVICE MANUAL

SECTION 5 CONNECTOR PINOUTS SCHEMATICS

— PCB ASSEMBLY 313235-01

SCHEMATIC 313056-01, REV. 8.1

— PCB ASSEMBLY 313235-02

SCHEMATIC 313236-01, REV. 1.4

PC30-III SERVICE MANUAL

MOUSE PORT

CN601 (5mm)

VIDEO PORT

Pin No.

1.

2.

3.

4.

5.

6.

7.

8.

9.

Signal

Vertical Horizontal Vertical Q Horizontal Q Button (3) Button (1)

+ 5V

Ground

Button (2)

Pin No. Signal

1. Ground

2. Secondary Red/Ground

3. Primary Red

4. Primary Green

5. Primary Blue

6. Secondary Green/Intensity

7. Secondary Blue/Mono Video

8. Horizontal Retrace

9. Vertical Retrace

SERIAL PORT

CN603 (5mm)

Side

PARALLEL PORT

CN602 (5mm)

Com puter

Side

Printer

Side

1

2

3 4 5

6

7

8

9

10

20

22

CHASSIS GROUND TxD ------------------ RxD ------------------ RTS--------------------- CTS--------------------- DSR--------------------- SIG GND

---------------

DCD---------------------

+ 12V------------------

-1 2 V ------------------

DTR---------------------

Rt------------------------

1 — 2 —

3 — 4 — 5 —

6 —

7 —

8 —

9 —

l O -

11 —

12 —

13 — 14 — 15 — 16 — 17 —

18-25

STROBE

-----

DO

----------- D1 ----------- D2 ----------- D3 ----------- D4 -----------

D5 ----------- D6 ----------- D7 -----------

ACK

----------

BUSY

-------

PE

----------

SLCT

-------

AUTO FDXT

ERROR

----

INIT

----------

SLCT IN — GND

----------

5-1

Schematic #313056, Rev. 8.1

Sheet 1 of 13

PC30-III SERVICE MANUAL

EOFITFI (7:0) i

vcc

(R202) >

10K q

U20 1

DS 1287

(M 14 6-8 1 8 fl) *

vcc

9

14,

T 14

,uS§5 .

6N0

.uSSb

GNO

■s 6 7 8 9 13

J 11

N R T C W R' NR T C R D '

RT C R L E

IS 17 m

16

flO0

VOO

not A02

003

CKFS

fl0*i

A05 AD6

A07

IRQ

R-W OS RS

0SC1

STRAY

SQM

PS

CKOUT

RESET

0SC2

CE

GRO

MOT

is

19

2

H.7K

j|] RP201

U2 0 4

4069

U2 0 4

K >^

4069

SH . 5

SH . 4 B SH . 4 B

N8 0 4 2 W R ' O

. N8 0 4 2 R D ' o

SH . 3 BflODR (2)

SH . 8 N R E S E T ' o*-

SH. l S W O o

SH. l S W l c *

SH. l S W 2 o t

vcc

REFERENCE JDESI GNRTOR_JN_BRRCKET_REFERS_TO_JHOSE_PRRTS_INSTRLLED_ONLr_JF SUB5TITUTE_IC_M146818 fl

_

I5_U5ED.

DS 128 7

_

I S_THE_PRIMRRY_PRRT_FOR_THE_RTC/CMOS_C IRCUIT

5-2

Schematic #313056, Rev. 8.1

Sheet 2 of 13

PC30-III SERVICE MANUAL

vcc

CB3011 .1

--------II----

VCC CB3012 .1

VCC

9-

SH . 8

DA T A (15:0)

015

0 5 R23

014

R22

013

R21

D12

A20

Oil

R19

010

R18

nq Q 1 7 08 1 | 0 n 1 016

n7 11A M 1 ate nfi R1U

05 80286 "l3

04

A12

03

RL 1 02 01

AS

00

R8 R7

CLK

R6

RERDT'

R4

RESET

R3

HOLD

R2

BUST ERROR' R0

CAP

LOCK'

INTft

COO/INTR’

NHI

HDLR

M/10 ’

SHE'

C3 X

-rxj Sl'

cc <r

ogg 50'

CL. CL

5 O L3

7

23/

8

22/

10

l b

11 12

19,

13

18/

14

17,

15

16,

18

15,

17

14,

18

13,

19

12,

20

11,

21

10,

22

9,

23

___

B,

24

__

~L>

25

6,

26

5,

27

28

3,

32

2,

33

1,

34

______

£L

d 5

5

d 4

6

d 3

7

0 2

___

8

d l

11

d 0

12

&

_____________________

14

tfi is

J 16

4 17 6 18

U 19 <3 2G <2

21

d

22

vS

_____________________

23

C P UC LK o

---

rt=r

PA D 3 0 2 5

PCB_PRD M 7

□

NP R S T o * —

9 . 6M o*-

PA D 3 0 3 PCB_PflO

»gu

ro M r

NI O R ' o * - N I OW ' o -

BR D D R (4)o*-

NN P C S ' o * - BA D D R (2 ) 0 - BA D D R (1) o -

12M o -

&

U302

8Q287

CLK

NPRO'

NPNR ’ NPS2 NPS1 ’ CHOI CMO0

a a

z z

o o

Top] 39

~0j30'

VCC

14

VCC

■■ Sad

PR 0 3 Q 1 PCB_PRD

X

H i

.33 7

CB305

AD D R (23:0)

AD DR (23:0)

d

4

2

8

k3

14

U

18

>5

19

38

y

<14

&

15 16

___

d 0

52

ai ___

53

a 2

69

d 3

70

a n

71

d 5

72

d 6

20

a 7

26

a b

29

d9

30

21

13

2 2 ___

58

2 3

59

m

66

SH. 8A

*> NB US Y ' LA S 0 O

■*0 N E R R O F T

SH . 8 A / 8 B AD R (0) d *-

- O H 0L D A

- O MN I 0

- O NB HE '

U:

SH . 8 / 1 2 SH . 8 A / 1 2 SH. 12 SH . 8 / 1 2 SH . 8 / 1 2

SH . 8 A

SH. 12

AL E o -

EA D S T B o -

SH . 8 B / 5 N M AS T E R ' o*-

SH . 3 D A T A (15:0) o -

AO S T B o -

Wl9

U3 0 5

74F32

HO L D A

gSSEBSBS!

3* ui a) r- m on u u u u u <J

U u U O U ( j ( J u u

fil^ > » » » » 2 A2 R3 fit R5 R6

R9 RI0 fill R12 R13

fill

R15 R16

R17

5" FI

R21 R22 R23 LR20

R20

HOLR NBHE

CND1

GND2 GN03 GN04 GN05 CN06 GN07 GN08 GN09 GNO1G* GNOlli

U3Q3

NEBHE

NSMEMR NSNENH

NMEMR NMEMH

NGTHEHR

LRS8

NRBHE

NRRMC3

HEN2450IR

NPROMSEL

N T M EM W ' O -

N T M E M R 'o -

T

RDOL

50

________

1,

A002

49

_____

?,

0003

42

3,

0004

41

RODS

36

5,

0006

35

B,

ROD 7

31

7,

R0D8

28

___

B,

0009

27

9,

R0010

25

LQ,

R0011

24

11,

R0012

2\

___

12,

00013

Ifi

13.

ROD 14

15

14.

RD015

11

15,

00016

10

16,

00017

9

17,

00018

5

_______

IB;

00019

to

- O BA D D R (19:0)

VCC

j o N G T M E M R '

62

----

*a LA S 0

A2 0 G T

l IK

R3»2

za_

at

----

o N P R O M S E L '

- O NR A M S L ’

0

36

n ______________________37

f2

38

^ 41

---------------------

41 ^ 43 ’b

44

<7

45 rH 116

"9 47 T 0

48

'1 1

49 rl 2 _

59 T 3

51

d 4

52 X 5 __________

53

DO □ 1

D2 03 04 05 06 07

08 □9

010

011

012

013

014 015

BA D D R (0) o -

N M AS T E R' o -

N T I OR ' O- N R TC C S' o - N G T P I C ’O - N W RP I O 'O -

NS E L O A T A ' O -

N T IO W ' O -

HO L D A co-

vi

i

7* IM I'l a-

9 u u u o O o o

► > >

in io m o

«-> o a u U U o u >>•>•>

DflTflQ ORTfll DRTR2 0RTR3

DRTR4 ORTRS 0RTR6 DRTR7 DRTR8 0RTR9

DRTR1G

DRTR11 DRTR12 0RTR13

DRTR14

U 3 0 i p Tfus

NMR3TERFE3G3G

NT I OR NRTCCS NGTPIO NHRPIO NSELORTR NT 10W HLOR

GN01

GN02 GN03 GN04 GND5 GND6 GN07 GN08 GN09 GNO 10

cc a

X oc

I I U U

O O t— I— ) — — a: <x c

EORTflO

EOflTfll

E0RTR2

E0RTR3

E0RTR4

E0RTR5

E0RTR6

EDRTR7

OTR

N646EN

NC245EN

DEGRTECTL

NF245EN

NF245D1ft

N INTO

x

ax t-

z u ui

a o x in

cc — x a ui z z o o a:

NI O W <y- NI O R '<y-

NR T C W R ' < ct- N R T CR D '

A E N o -

3MH

"31T5

51 4J 6 U( 6 9 7

BT P A S S _ F O R _ 3 0 2 0

vcc

C B 3 0 3 1 . 1.

[3ofe"

C B 3 0 3 2 . I C B 3 0 ^ 3 . 1

C B 3o l u . 1

CB 3 0 ^ T

CB 3 Q ^ 6 .I

CB30^7. 1

C B 3 0 ^ 8 . 1

CB30I9.I

------II----

— O N S M E M R r

--O N S M E M W ' — *<aNME MR ' — * < ^N ME M W'

BY P A S S _ F O R _ 3 0 3 0

vcc

CB3 04 1. I

8

__________

0,

9

1,

IQ

2,

11

3,

14

4,

15

5,

16

6,

17

7,

28

________

B,

21

___

2/

22

10, 23 1 1, 26 12,

27

13>

26

14/

29

IS/1

76

0/

77

1/

78

2,

79

3/ 00 4/ 81

5, 82 6, 63

____

1)

BD A T A (15:0)

CB 30142. 1

CB30d'3. 1

C B 3 Q d' 4. 1

CB3gJ[5T 1

C B 3 G d* 6. I CB3Gil|7. I

CB3g 4'8. I

-t> ED R T A (7:0)

- o D TR

----

>o N D 6 4 6E N '

- O N C 2 4 5E N '

- o D E G A T E C T L

- O N F 2 4 5 E N '

63

----

t> N F 2 4 5 D IR

“

---

vaN I N TA '

-j o N R E S E T '

=S $ ckk

- O E N I O C K

5-3

Schematic #313056, Rev. 8.1

Sheet 3 of 13

PC30-III SERVICE MANUAL

00

CD

5-4

Schematic #313056, Rev. 8.1

Sheet 4 of 13

PC30-III SERVICE MANUAL

vcc

U413

13- t > 12

74F04

U5 Q 1

74LS14

U8Q7

t > 3

7LtF0O

U416

1 U F32

U416

4 7HF32

5o «

1)416

SH.4

NYIOW' o i-

SH.6 IOW-DLY ' o

U416

13 7UF32

12

SH.3

REN o 2—

SH.3 BR O D R (9:0)

o -

SH. 3 SH.3

NI0W' o 2— NI OR ' O'

REN

9 v

U414

74LS125R

10

R406

4. 7K

- O DLYWR SH. 8B

U414

74LS125R

13

-'d * NYIOW ’

SH.3

U413

74F04

- V 1

U 4 0 1

P R L 2 0 L 10

7

8 9

IQ

11

13

11 12 13 m

023

15

1/0 22

16

1/021 1/0 20

17

1/0 19

18

1/0 18 19 1/ 01 7 110 1/0 16 III 1 /0 15

014

113

23

22

2~r

20

19 18 17 16 15

14

SH.8R ESYSCLK SH.8R OSCR SH.8B TCfi

S H .80 BLRLE

SH.8R N RE F RE SH 1

-t> N8 0 4 2 R D ’

-j o NCS287 ’

- O NWRP 10 ’

-20 N8 042WR '

-20 NNMICS'

-0 > NGTPIO r

-O* NSELDR TR ’

-t> CSQ '

■ O TCLCK

-JO CS1 '

S H . 2 SH. 8R S H . 2 SH. 2 SH. 8R

SH. 2

S H . 2

S H . 9 S H . 2 S H . 9

FB4Q8

ii

-----

12

STSCLK SH. 5

o OSC S H.5

-O

TC

SH

BRLE

SH

NBRFSH

SH

■JO

RCK

SH

VCC

5-5

Schematic #313056, Rev. 8.1

Sheet 5 of 13

PC30-III SERVICE MANUAL

flODfi 123: 17)

RS89

4.7K

O BDflTA (7:0)

<3

BflODR 122:0)

C8^)2

5-6

Schematic #313056, Rev. 8.1

Sheet 6 of 13

PC30-III SERVICE MANUAL

BP D O R 19: 0) c *

ID HT R (7:0) C *

\ \ V v ^ Y \ V ^

vcc

IRQ 9 IRQ 3 IRG 4

N IOR ' RE N

NIOW r

CO M I N T OU T 1 '

IO R - D L Y '

IO W - D L T ' LP T C S ' Ufl R T CS ' F D CC S'

61 60

59 58

-f

57

“»

56 55 54

51

Mb(393837 141516 17 2G 21222 3 6 5 4 3 68 57 56 55 64 53 35 1 1

.VCCcefejlTT

VC C

3 ^ cn c\j Q -' r o c o ^ ’ in id r- .

9000 aaaooooo iiacaataai Gn^

zcccccc com m CO an cd CD qo E £ co m m m m m m go t! u c

BIORD'

BREN BIOWC' COM-INT CON-OUT IOR-DLT IOW-OLT CS-LPT* C5-C0M' C5-F0C' CS-HOC' CS-RTC'

5720

U6 01

IU — <\J

in _j _i z 2 -

iu uj u •—< — * a oj •

cc in in i i *— a: sc: * o

I I I OJ ID i U J I U C C -

u > > o a a i D J i n u a > - ( D

□ ccaicccccr: — o tu o a o a

U - O QO Q — r<nOC--OQ — z

VP BR ’ HP VQ HQ BL' BM’

CS-LDOR'

CS-FDCXTR'

" c o m i- MCLK

□ □ □ in CD —* r\i nc.Lr\ z z z uj in in <n

o u o t- cc cc DC

46W5f44!

F O C - R E S E T o -

iJ44|45p2pipi

16M o * - 6M H Z O - N R ES E T ' O -

N D R CK 2 ' o* -

I 0 1R ' <7-

NO V I D <7-

5N 2 o 1-

i§— 20 N L D O R C S '

o N L DC R C S '

49

--

V

2

VC C

tZ P

FB601

c NB R F S H

IDRTfl (7:0)

74LS245

IDRTR (7:0)

11

B7

R7

12

86

R6

13

85 R5

1*J

BU

R4

15

B3 R3

16

B2

R2

17

B1 R1

16

B0

R0

Olfl

C'

vcc

?

_

I

IN

|U 6 0 3

fP—

& 1 10

CB 6 0 3

-» o B D R T R (7:0)

-*<□ I DI R '

U6Q3

VC C

. 1

CB 6 G3^“

^ |_40

4. 7 K X

RP6 0 4E ]

RE S E T

BR O D R (19: 0)

ID R T R (7:0) o* -

4 . 7 K „

RP604[|]

vcc

K r

£

UflRTCS ' o 2-

-xn

VCC

OUT 1 ' :

MR

0U T 2 ':

R0

INTRP T;

R 1

W D 8 2 5 0

DO D1 1 1 R FI U n iR'

U2 w w w

D3

RTS' .

D4 D5 06

SO UT

D7

CS O U T CSO G D I S CS1 CS2 '

XT RL 1

NC

n r n '

SIN

XT R L 2

RI ' DI S T R ' DO S T R '

ADS '

DI S T R RC LK D O S T R BA U D OUT'

VSS

SH . 4

A P P E A R S_R S _ M 0 D_ 0 N ,_R E V 5_P C B

C603

T1Q0PF

V

a

FB602

C621 100PF

K U

FBS03

C622 10GPF

B604

C623 1Q0PF

a

FBBQ5

C624 10QPF

FB606

C625 10OPF

CN 6 0 1

-7

1

t l F

FB6G7

1 C626 T100PF

V

-MS

Am Am

A m

Am Am

Am

-A W -

2.2

R610

FB6 0J

C627

10QOPF

VCC

CB 6 0 2 JT"

- 1 ^

NR E S E T ’!> -

LP T C S ' d 1-

IRQ 7 o* -

NI OR ' or- NI O W ’ o*-

BR D D R (19:0)

VC C

4 . 7K

RP 6 G 4

VCC

35

05

04 03

02

RSTN CEN

IRQ

IORN I OWN

3LCT

POPE

BUST RCKN

D0T7 OOT6

DOTS D0T4 00T3 D0T2

U602 0fiT1

PPC1

DOTQ

STBN

RFXN

ININ EFFN

SLON

-TO 0UT1 '

c o m i n t "

R60 8

2.2K

U6G5

1488

I D A T A (7:0)

RP 6 0 1

33

1 rrr\2

~3f ?f e ~

%=

RP 6 0 2

R609

33

1P603

■■U.7Kx7

VCC

THT6S8

_ eh IBUS

C6 0 4 ..

C6 05

in io u s

W ' EHISlff"

HQ*-

C63 6

HE1

EMI611

CN 6 G 2

DB25

- i l f V 5

..EM 1612

. C60 8 ' C6 1 0

C6 G 7 C 6 0 9

__ EMI61U

^ ■ ■ “ T hisis

-------

^ __.EM 1516

^T 1 \ _ N em1617

C3K

EMI618

[24

23

22

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19

. IB

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4E1

C 61 1

C6 12

C6 1 3 C 6 1 5 C6

C6 1 4 C 61 6

«,,EMI620

EMI62T

tE

_^,EHI622

__

.gMI623~

i5

i p

C6 1 8 C 6 2 0

-T iC H - d ?

vcc

1489

U6G6

R604

2.2K

vcc

+ 12V o ^

14

I

J6G 6

r^c - 1 2 V

2N39G4

Q60 1

14 l

J

U6 0 5

CB 6 0 5 CB 6 ( l 5 C B 6 0 5 2

R605

1GK

I

CR 6 0 2

4.7K 1

CR601

1N4148

5-7

Schematic #313056, Rev. 8.1

Sheet 7 of 13

PC30-III SERVICE MANUAL

BflDDR (18:0) O -

SH.3

AD D R (18:0) c *

0^ 8 <

16 ^

SH.12

NE N R R B F R ' o*-

EMfl 17

N M E M C S 16 r o -

flDDR (23: 16) c

0L&

vcc

4 ,

R7 04 5 > R703

< < 10K

10K

JM P7 0 1

O-

0 o -

JM P 7 0 2

i n

ien

up

I2P

[3P

I8B ne

I2B [36

BUFENfl o -

~nip

T _ l

TTfS

s9_

Hr

J2

iix

n r

U705 MfilR C>_

U7Q5 MA18 O -

U 71 5

714F04

U719

B U F E N A o -

,2

H

sj

__

6 0

__

,5

11

,6 13

y ] 15

lfll

IT L

1R2 1T2

1R3

1T3

1RU

ITU

2A1

2T1

2A2

2T2 2A3 2T3 2A4

2TH

cu UJ o

a

r x

74 F2 4 0

U70 4

U702 1 U703

_r CNO

WTO UNO CNU CNO CNO MID

^ ce^l C8^2 C8^3 CB?$4 CB^5 CBt\d6

U70 2

74 F 2 5 8

U70 3

74 F2 58

1A IB

2fl

2B

IT

3fl

2T

3B

3T

un

UT

UB

UJ

cn o

IP IB 2A 2B 3fl

2T

3B

3T

UP

UT

UB

kJ

cn

a

i

15

W ~

33

R701

RP7 01

tQ t :

1 3

= w

RP 70 2

68

f t

25 6 X4 D R R M

JJ7G7

15

it

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11

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8

7

5

NR AS O ro — pi RAS tn i

NC A S 0 L ' o - i 7 CflS'f^

nwel'd-^I ID?

r

A8 07 A6 A5 A4 A3 A2 A1 A0

NC

WE'

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1 0

2

i \

19 2s 1 0

3N

25 6 X 4 D R RM

U 7 11

N R A S Q ' o -

NCf l SQ H' o-

N W E H ' o -

A8 A7 AS A5 A4 A3

A2 NC

A1 NC A0

PRS ' t ni

g ^ io ° 2

ol' 103

DE 104

25 6 X 4 D R R M

U7Q 8

_ i l

_jx

11 ~ 9“ “ el

T

6

NR AS 0 ' o—pi PPS ' r q |

N C A S O L '^ J CAS'

NW E IX o- y^ WE' rn a|

A8 A7 A6 A5 AH A3 A2 Al A0

RAS ' , CAS WE'

NC

2

t'w

19

6s

P-

7^

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2 5 6 U74 1D2R

RM

t

1

___

8

fg j T N

S U P

NRflSO ' O -

NCfl SOH ' o —

N W E H ' o -

R8 A7 A6 A5 AH A3

02 NC

Al NC A0

RAS in i r p c >IU1

LHb I()2

WE' 03LOT

oe ' \oi\ E i P

2 5 U 7 G 9 R

NRflSl ' O-T i RAS ' IQ1 ,

NC AS 1L 'o -tt CAS ’\n\T~

nwel' S ^ he; gin

---

|0E IQ41L8

A8 A7 A6 A5 A4 A3 A2 Al A0

NC

J !

f j

13

P 1

4

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ii

3 g-

2 8 j 7 I) 6

5 19

p>

18

3N

s

25 6 X 4 D R RM

U 7 1 3

NRflSl ro -

NCflSlH ' o -

NWE H ' o -

A8 A7

A6 A5 A4 A3 A2

Al

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,101

1 0 2

103 104

U7 1 Q

NRflSl L^-p

NCflSIL'r- A-

NWEL'i^-p

A8 fl7

fl6

R5 AH A3 A2 fll A0

RAS ' rgj 1

«ri o 2

Sf ' I03*1 0E 104

NC

BOA T A (7:0)

25 6 X 4 D R R M

U71 4

7

4

r -

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1

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NCflS1H ' o -

N W E H ' o -

A8 fl7 A6 fl5 AH A3 A2

fll

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CAS1 WE' 0E'

NC

101

102

103 104

12

NV G A 16

U7G 6

PR L 2 G L 8

si 7

2

J a

3

si 9

u

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s

s21

6 7

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8

SH.0 NB R F S H [

sh.i SW3 I

IT

IL

12

13 1U

022

15

015

16

1/021

1/020

] 7

I /019 I/CIS

19

1/017 1 IQ 1/016 III

113 IlH 123

, U7 1 5,

- U s i 7HF0H 4 > i

7HF 0 4

U71 5

U 715

L[>J

-*> EMA 1 7 l)70U

SH.8P

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sh.12 I N T R A S o 1-

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13

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3

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U

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4

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5

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JJ

0LT8

m -tq

6 9

U71 9

74F08

~ T q~| ) S - ^ > B U F E N A

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SH.12/SH.7

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01

Q1

02

Q2

03

DU

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DL7 01

PAD 701 PCB_PA0

C P

U 716

7HHCT7H

4 ?

BDATfl (15:8)

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^> NC A S 0 L '

^> N C A S 0 H '

"t>NCAS 1L f

■ONCAS1H '

VCC

U715

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vcc . U7 16 ‘ CNO

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. U7 1 7

CNO

vcc

. U 71 8

CNO

vcc . U 71 9 ‘ CNO

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I vcc

L U7 2 1

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vcc DL701 ' CNO

77*

----

7-7*

----

X T

----

7 T

----

X T

---

X T

---

X T ----

, 7

5-8

Schematic #313056, Rev. 8.1

Sheet 8 of 13

NI 0 CS 1 6 ' NH D I 0 1 6

VCC

SH .5 SH .4

SH . 3 SH .3 SH .3 SH .3 SH .3 SH .3 SH .3 SH .1 2 SH .5 SH .3 SH .3 SH .4 B SH . 3 SH .2 SH .3 SH. 4 SH . 7 SH .5

O-

SH .5

S H . 8B S H . 8B

SH. BB

S H . 8B

SH .3

S H . BB

SH .3

NO T LOA DE D

220PF {-R802

7C 8OI < >4 70

RE S E TI N ' O -

C L O C K O -

S O ' O

SI 'O

H O L D A O

M N I O O

ADO R (1)O

N A B H E ' O

N I OC H K ' O

NE RR O R NC S 2 87 r O

E N I O C K O

N S E T S D ' O

ED AT A (7) O

NN M I C S ' O

F 1 6 0

N Z E R O W S ’O

nU409

t >

74F 0 8

FB801

I O C H RD T O -

H R QI O -

NAE N1 ' O -

ND M R M E MR ' O -

O U T 10 -

N R R M S L ’O -

N AEN 2 ' O -

62

8C

81

67

7 “ i i

r as ^ i«J

. 15 . 69

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55

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ie

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.... . 19

... 64

59

78

1 o 79

23

ip

24

17

22

21

26 31

65

63

27

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84 43

CB80 11

. 1

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NR E S I N X 1 284 X22 8 4 SQ

SI

HLO A MN IO AO

A1

XR3 NXB H E NI O C H K NB US Y NE R R O R NC S 2 8 7

ER I O C K RC XD7 NN M I C S

F16

NZ R O WS NI 0 S 1 6 X 18 28 4 X2 8 2 84 MD P I N Q MOP IN 1 EB R M CK IOC RO T H R Q 1 NAEN1 ND M A M R OUT 1 NE N O CT NR R M SL NFFIST

NA EN 2 N.C

EN P A L2

XRQ

U80 1

FE30O0

NT IO R

NYI O W

NYMEMkl

NY ME M R NR ES E T PR OC L K

NR ER O T RES C PU

AIO W

NI NT A

ALE DTN R

NDE N O NDEN 1

NNP C S

RS T2 8 7 NB Z 28 6

IOC HC K

NNMI

SY SC L K DM AC L K

PCL K

NP CL K

L5A 0 F14 M

F1 19 M

CTL O FF

Q1

NI R Q1 3 NE RF S H RE FD E T NRF S H DM AR O Y HLDfll CP UH R Q

BAL E

NE D MM R

AS

PCK DI R2 4 5 GT E2 4 5

G N D 1 GND2

42

76 39 77

34

7

__

51

83

82

45

46

49

32

53

55

52

33

13

38

M_

54

74

73

LL_

36

3Q

48

35

41

12

72

19

9

50

8

37

47

75

PC30-UI SERVICE MANUAL

VCC

o

RP8G 1

1_K

- r^ r-

- T f w | r -

- t-VW-

rMi”

.11721

O ’

74F 0 8

j-RB09

< 30 0

PAD8 01

2

-JO N Y1 0 R '

-^ONY10W '

-2O N YMEMW'

- ^ O N Y M E H R '

-2O N R E S E T '

SH . 3/ 8 B S H .3 /4 SH . 3 / 8 B / 1 2 SH 3 . / 1 2 SH . 1 / 2 / 3 / 4 / 5 / 6 / 8 B / 9

R810

- O C P U C L K 5H.3 4S H. 12

FB802

ii

-----

12

13

I C1oco ^

74L S 1 25 A

U20 5

■ ^ O N R E A D Y '

SH .3

- O CP U R ST

SH. 3

■ ^ O N I N T R '

SH . 3 4 S H . B B

■^ O A L E

SH . 3 4 S H . B B

■4Z>DTR

SH. 3

-2O N D 6 4 6 E N r

SH. 3

-o ^ N c a u s E N '

SH .3

-2O N N P C 5

SH. 3

■^ O N P R S T

SH. 3

-2O NN P B U S Y '

SH .3

■^ O I O C K

SH. 3

■ ^ O N N M I r

SH. 3

-^ O E S Y S C L K

S H . 4

■^ O O M A C L K

SH. 8 B

^ O P C L K

SH .2

^ O N P C L K '

SH. 2

■^ O L A S O

SH. 3

-^ O O S C A

S H . 4

■^ O T C L K

SH .8 B

-* O D E G A T E C T L

SH .3

-“O N I RQ 1 3'

S H . 88

- 0 > N E R F S H r

SH. 8 B

- O N RE F RE S H ’

SH . 5 4 S H . 7

- O DM A R D Y

SH .8 B

-zOH O L D f l l

SH. 8 B

-’O H O L OR Q

SH. 3

-^ O B L A L E

SH . 4 4 S H . 7

-* O N G T M E M R '

SH .3

- O RT C A L E

SH. 2

-’O P C K

SH. 3

-t > N F 2 U 5 D I R

SH. 3

- 0 > N F 2 4 5 E N r

S H . 3

5-9

Schematic #313056, Rev. 8.1

Sheet 9 of 13

PC30 III SERVICE MANUAL

SH.3

EORTfl (7:0) [ >

SH .5 4 6

1RQ3 O 2-

SH . 54 6

IRQ4 O 2-

SH .S

IRQ 5 O

SH . 5 4 1 0

IRQ6 O 2-

SH .5

IRQ 7 O 1-

SH. 5

IRQ9 O 2-

SH. 5

IRQ 10 O 2-

SH. 5

IRQ 11 O 2-

SH. 5

IRQ 12 [ > ■

SH. 5

IRQ 14 O 2-

SH. 5

IRQ 15

5H. 5

DR Q 0 O 2-

SH. 5

D R Q 1 O 2-

SH. 5

DR Q 2 O* -

SH. 5

DR Q 3 O 2-

SH .5

DR Q 5 O 2-

SH. 5

0R Q 6 O 2

SH. 5

DR Q 7 O 2-

SH. 8 R

RLE O 2-

SH .8 R

N I R Q i a ' O 2-

SH. 8 R

N I N T H ’ O

SH. 8 R

TC L K O 2-

SH. BR

DM R C L K O 2-

SH .8 R

DM R R D T O 2-

SH 8 . R

HD LD R 1 o 2-

SH . 8 R

N E R F S H ’ O 2-

SH .8 R NT 1 OR ' O 2-

SH. 4

DL T W R O 2-

SH. 8R

N D M R M E M R 'o 2-

SH 3 / 5 H 8 R

NYMEMkl ' o 2-

SH . 8 R

NR E S E T ' O 2-

SH .5

NM R S T E R ' O 2-

5H .2

NI R Q 8 ’ O 2-

SH. 2

KB D I N T O 2-

CBS&21

vcc

Ht

CB&G22

84

s L .

2

0

3

,2

4 5

6

7 8

^ _______

9 15 16

17

16

19

26 27 28 29

61

60

78

77

76

75

74

73 72 57

62 59

23

_1

J.

56

BE

_§I

82 B3

_63

13 25

14

43

24

-t>SPKR

SH. 12

U 8 0 2

— OJ

DR TR G | |

ORTfll DR TR 2 DR TR 3 0R TR 4 DR T R 5 0R T R 6 DR TR 7 IRQ3

IRQ4

IRQ5

IRQ6 J??! F E 3 G 1 0

IRQ9 IRQ 10 IRQ11

IRQ1 2 IRQ 14 IRQ1 5

DRQ 0 O R Q 1 DRQ 2 DRQ 3 DRQ 5 DRQ 6 DRQ 7 RLE NI R Q1 3 NINTfl TCL K DM RC L K OM RR D T HLD R NR FS H NIO R

NI OH

NM EM R NM EM W NC LE R R NM R ST E R NIR Q 8 KB1 N T

V C C

4.7K

R8 Q 3

74FG4 U413

R0

R1

R2

R3

R4 R5

R6

R7

R8

R9

R1Q

fill

fl 12 fi 13 fl 14

R15

fl 16

R17

R18

R19

R20 R21

R22

R23

REN

DRC K 2

DRC K0 DRCK1

ND RC K E N

INTR

TC

SYSflLE

NR TC C 5

C^UT 1

HRQ

C N D 1

GND 2 GND 3 GND 4

21_

65

2 N 3 9 0 4 1

Q 8G 1

42

jy_

30 31

b

32

2,

33

3/

34

4,

35

F

36

6 /

37

7,

38

8,

39

9,

40

10 /

41

l L

44

12,

45

1

46

14 ,

47

15 , 48 16, 49

17 , 50

18 / 51

19 / 52

2 0 , 53

2 1 / 54

TZ ,

55

23 7

R8Q 4

R 80 5

220

5. IK

P Z8 01

O

4= C802

17PF

-*o+12V

U 8 07

7 FO G

74FQ4 U413

74 F0 0

U415

U8 G3

74 F1 3 8

iff M ;

2.32

V C C

R8Q6 \

4.7K<

dl!S

ftc c

66

Y1 U 4 1 2

7 4 H C T 7 4

68 •

20

_

____________________________ _________________________________________________

2r 7 > T M T R n 3

70

1 i—s 1 1N 1 1 1U jn. j

-------

r ^ T F R S H. 4

79

-

--------

Jr > R D S T R SH 3

i— U J 1 U sjn.j

_______

J o N R T f T S ' S H. 3

___

21

____________________________________________________________

2 T > m IT 1 SH fifl

£2__________________________________________________________

------------------------------------------------------------------------------- T > H n G 1 SH. 8

_G6

VCC

JJ£

14

vcc

U8G3

CND

^ CB'8b:

vcc

U807

GND

"T"

-JO R D R (0 ) SH.3

-* o R DD R (23 : D sh.3

-t>NflEN 1 ’

-O NR EN 2 ’

-O ND AC K0

-oNDflCKl

-t>NDHCK2

-O N D R C K 3

-JoNDflCK5

-“oNDRCKS 1

-Jc>NDflCK7 1

SH.8H

SH. 5 SH. 5 SH. 5 SH. 5 SH .S SH. 5 SH. S

5-10

Schematic #313056, Rev. 8.1

Sheet 10 of 13

PC30-III SERVICE MANUAL

BRDDR (9:0)

HENc>*-

NHIOR’o*-

NIOW 'o*-

RLEo*-

NRESET ’o*- BRDOR (2) BflDDR (l)o*- BflDDR (0) o*-

BDRTR (15) o*- BDRTfl (14) o - BDRTR (13) o*- BDRTR (12) o*- BDRTR (ll)o* - BDRTR (10) o*-

BDRTR (9) o*- BDRTR (8) o -

BDRTR (6) o*- BDRTR (5) o*- BDRTR (4) o*- BDRTR (3) o - BORTfl (2) o*— BDRTR (1) o*- BDRTfl (0) o -

VCC

<2

__

_^0

U905

PR L2 0L 10B

«S

___

2

\

___

T

V

___

4

V

___

5

s

6

V

7

V

8

s___

9

V

_____

10

20

11 13

11 12 13 14

023

15

1/022

16

1/021 1/020

17

1/019

IB

1/018

19

1/017

110

1/016

111

1/015

014

113

vcc.

U901 ^ 2 2 0 FB901

7 4L S 2 44

17

■’oIRQlU ^ENABLE HD_L ON 1 OB DATA (7)

oHD_DATA7

■toHD_I RQ 1 4 *oSLAVE

^□DSKCHG' ^oNHD1016

-*oE N A B L E H D_H I G H '

CS1 'o*- CSQ'c*-

vcc

300

R907

a I

0 7 >

12

13

m

16

I T

18

B7

R7

B6

R6

B5

05

B4

04

B3

R3

B2

R2

B1

fll

BO

RO

DIR

G f

U903

714F245

SLflVEo-

HDJR014O-

NHD1016 o-

T5

13

17

07

16

06

15

05

14

04 13 03 12 02 11 01 10 00

IG'

2G'

R902

B Ficd

CN9Q2 M

5 7

■9 nr

FF~

CN901

38 m

17

07 16 06 15 05 14 04 13 03 12

02

11

01

10 00

1G' 2G'

U902

74L S2414

25r

-5

-----------

--------

— Hr

7

28r

■5

,‘r

rs

36

14

33

IF

35

{§]

{£]

VC C

R906<

R90 1

4.7K

39 31 32

S a

m

B

---------------------------------------------------------------------------------------------------------re t

7

---------------------------------------------------------------------------------------------------------r r f

B

■ ' re f

"”5

---------------------------------------------------------------------------------------------------------r e t

4

-----------------------------------------------------------------------------------------------------------^

5

-------------------------------------------------------------------------------------------------rf

2

:

-----------------------------z-------------------

=

......

...............«

I OCHRDYo-

-*<z)ENABLEHD_H IGH 1

7 4 L 5 0 4

U2Q6

11 lTl

13

14

~TF

16

B7

R7

B6

06

85

R5

B4

R4

B3

A3

B2

02 61 BO

fll

flO

DIR

G'

9

\~T

7~

U904

74 F2 45

i s

PAO901

a c ^ -

21

(D

27

{H

HD_ D R TR 7 o -

PAD902

-t®

TT®

- m

17®

-^KSl

-*<□ ENRBLEHDL O W 1

24

CB901 CB902

33

CB903

CB9Q4

T7',~1 I,50' f 50r '--r,hli

iu ^ 2 1 U9S3 1 U9C§4 lilie s

CNO T CND J gnd T cho T

1LJX-J 1 '—Z=LL

U 9 C6l

CNO

s

rra ®

l i

H i

1

12

34

C B 9 0 5

5-11

Schematic #313056, Rev. 8.1

Sheet 11 of 13

PC30-III SERVICE MANUAL

SH . 9 OS K C H G 'o 1-

SH .5 SH.6

SH .6

SH .5 SH. liB

SH. 3

DR Q 2 o

N L D O R C S ’o

TCo

NI OW 'o

S H .3 B R D D R (0) o

SH. 6 IRQSc^-

SH. 6 IDR T R (?: 0) o 3-

9.6MHZ

OSC ^ Ql

'in

SH. 4R I SM o -

T

SH . 4A 9. 6M < Q -

SH . 5 R ES ET o2-

FM O D E

I DX 1

MSG ’ FDS 1 1 FDS0 1

MSI 1

FDIRC’ FSTEP '

FWD ’

FWG ' FTKG '

FWP ’

FRDD ’

FHS '

vcc

C610Q1

. 1

\0

ST

Sr

15

17

J

__

18

__________________________________________________

5

________________

6 i

j__________________________

2

^____________________________________________________3

4

j__________________________

16

7

_8

_

9

191

J_

i; l:

14

our

MO

R 1 0 0 1 FBI 0 Q 1

R a l r r m 2

CJ

21

‘ V i 1 1 1 i i

6 8 LG_BERD

19

VCC

DRV

22

DMR

HS'

25

LD OR r LD CR '

WE ’

26

DR CK ’

ND '

27

TC RD ' NR r CS '

STE P "

29

D I RC '

2B

R0

IRQ

PC V RL

24

M D37C65 DS1'

U1001 D S2 '

DBG

MO 1 r

DB1

DB2

M02 r

DB3

DB4

DB5 RDD r

DBG

DB7

NP '

TRG0'

C L K 1

IDX r

CLK 2 RST

HDL '

RNC r

VSS

30

32

33

34

PHD10G4

29

37

38

39

31

R1G06

VC C

<2

__

„

VCC,

R1G95

150

JL1

vcc

P 1 GG2|

CNO

J

DG4 |

t a d

□ d

— t a u

0 4

PA D 190 5

7496

ut r nru u . -

A2

JJi

_L1

Mr

_22

_ 2 M .

_ 2 £

_21

_lfl _ 1 £

_SM.

9 _

LL_

n _

15_

L 2 _

i i- 21_

23_

°:Er

2fl_

1 1 . 1 3 _

CN10 01

F L 0 P P Y _ D I S K

VC C

I: R1002

4. 7K<

VC C

R 1003

IK <”

PR O 1 00 2 t a

P C B _ P R D □

Ljcu.

vcc

d 

a ,

PR D 1 Q G 1

P C B _ P R D

VC C

tR1004

< IK

PRD 10G3 I— t_

p c b _ p r d E=l

FMODE

74G6

U 1002

U8G7 U10G2

CB { ( J o 2

5-12

Schematic #313056, Rev. 8.1

Sheet 12 of 13

PC30-III SERVICE MANUAL

SH.3

5-13

Schematic #313056, Rev. 8.1

Sheet 13 of 13

PC30-III SERVICE MANUAL

vcc

5-14

Schematic #313236, Rev. 1.4

Sheet 1 of 12

PC30-III SERVICE MANUAL

NO GN-BOflRD VIDEO PARTS ARE F IL LED , ONLY SW 1 0 1 , R 1 0 9 , R 1 1 0 , R 106 * R 116

co l 1 e c i o r

2N3904

Q101 CN 103

R C A j o c k

1 'S)*

NO VIDo

r~

----

O O-

V JM r

□ SC 101

1 6 .257MHZ

18

♦ 1 .1 *33 . 33

CB*1 7 1 CB 1 7 2 C B 1 7 3 C B 1 7 4

5-15

Schematic #313236, Rev. 1.4

Sheet 2 of 12

PC30-III SERVICE MANUAL

5-16

Schematic #313236, Rev. 1.4

Sheet 3 of 12

PC30-III SERVICE MANUAL

vcc

VCC CB30 1 1 .1

VCC

1

15

7 P T

vcc£

rv r

' / T7~'

'7nr

'm=n

-7 T

S H . 8 SH ♦ 8

SH . 8 S H . 8 S H . 8

SH ♦ 8

S H . 8

D A T A(15:

C P U C L K

N R E AD Y'

o^-

63

C P U R S T o * — H O L D R Q o *—

N N P B U S Y ' o* -

29

IN T R Q [>t-

NN MI

74 LS04

U2 0 6

C 3 0 1

.0 47

_62J3Gi

HJ-

VCC CB 3 0 12 , 1

U30I

D1 5 D M D13

□ 12

Dll 0113 D9 D8 D7 06

80286

03 D2 01 DO

CLK READY'

RESET HOLD BUSY ERROR'

CAP

1 NTR

NM1

A23

922

A21

R29 A19 RIB

A17

R16

A15

A M

R 13

A12

All

A 10

A9 A8 AT A6 R5 A4 fl3

92

A1

A0

LOCK'

C0D/INTA'

HCLA

M/10 '

BHE '

31'

□ 2 2 SG *

»1 ^26K

>15

___

6

___

6

0 3

7

J 2

8

s U

___

11

O G

12

^9

14

sfi

___

16 16 17

,5

10

\4

___

19

___

20

__________________

21

vl

________

22

VQ_____________________

23

C P UC L K o 1-

P A D 3 0 2 ?

PCB_PflD L p

N P R S T o 1-

9. 6 M o

---

per

PA D 3 0 3 H

PC B_P AD M^ T

NI OR 'o*-

N I O W ' o * -

B A D DR ( 4

N N P C S l [ ^ -

B A D DR ( 2 )o*— BA D D R ( 1 )o*~

12 M o* -

9|3d;o0

VCC

015

014 013

012

01 L

DIO 09 08 D7 06 05 04 03

02

01

DO

CLK

BUSY *

ERROR'

U30 2

80287

NPRD' NPNR ‘ NPS2 NPS1 ' CMD1 CMD0

Q O z z C5 o

TEESlT5|3rS'

VCC

.1 I

C B 3 G 2 ^

VCC

- dDQ

PA D 3 0 1

PCB_PAD

I n

i no

U305

.3 3 7

CB305

2.3/

8

22/

10

2 b

11 12

1 9,

13

18/

|U

17,

|15

1 6,

15

15,

17

1 4/

18

13,

19

12,

29

1 1,

21

10,

22

9,

23

8,

24

7,

25

6^

26

5,

127

4,

2?

3,

32

2,

33

1,

\34

________

qJ

A D DR ( 2 3 : 0 )

A D D R ( 2 3 : 0 ) -

vcc

A

4

2 8

,3 M

A

___

16 19 38 44

‘.B 46

7) 45 ,10

52

O i

___

53

a 2

69>

,13

70|

J 4

71

0 5

_______

72

rj-

CD

20

0 7

_______

26 ,18 29 ,19 30 ^ 1

43 ^ 2

56 59

C20

68

ell

2[22l32|3s{4T|54|74)lB4|

U u u u S jj - <-> u u o o

fil> > > » ^ A2

R3 A4 R6 R6 A7

RP305H

SH . 8 A

-* > H 0 L D A

-t>f1 N10

H o N BHE '

-*o S 1 '

-*> S0'

S H . 8 / 1 2 S H . 8 A / 1 2 SH. 12 S H . 8 / 1 2

S H . 8 / 1 2

4 0 NB U S Y ' LAS 0 o*

-----

-T>

O N E R R O R ' ^

SH . 8 A / 8 B ADR t 0 ) o* -

SH . 8 A

AL E o* -

■f= m

SH . 1 2 EA D S T B <* -

SH . 8 B / 5 N M A S T ER ' o* -

SH . 3 D A T A (15 : 0 )d *

A D S T B o 1-

U3 0 5

74F 32

H 0 L D A

LJ80 8 flDDl5

U J U J ADD16

FE3020

A9 RIG All R12 Al 3 A14 R15 A16 A 17

A18 A 1.9

021 022

023 LA20 R 20

HOLA NBHE

ONO 1 GND2 GND3 GND4 DND5 GND6 GN07

GN08 GMD9 GND10- - GN0 1 lx: i: cd ca

5 cr>

o o

u O o

> ADOG

ADD 1

AD02

ADD3 ADD4 R0D5

R0D6

A007 ADDS

ADD9

AODIG

ADD11

A0D12 A0D13 A0D14

0DD16 RD017

HDD18

00D19

NEBHE

NSMEMR

NSMEHW

NflEMR NflEfiW

NGTHEHR

LAS0

NABHE

NRAMCS

HEH2450IR

NPR0MSEL

^

----

ku N G T M E M R '

K

----

Jo L A S O

678^ 3(60)66

N Y M E M N ' o 1- N Y M E M R 'o 1-

T

B Y P A S S _ F O R _ 3 0 2 0

VCC

CB3031.1

51

_

_____

0, 50 1/ 49

_. . 2/

42

_ 3,

41

4,

36

.. 5,

35

6.-

34

7, 28

. a

27

... 9/

25

_ 10,

24

.. 11,

21

____

12/

16

13,

15

_ 14,

1 1

. 15,

10

16,

9

_

___

VL

5 18,

1 19?

-4D> B A D D R ( 1 9 * 0 )

VCC

-kci A 2 0 G T

[7SL

li

----

1> NP R O M S E L '

R362

— 4 3 N R AM SL ’

VCC

[ 1 ^19(2 4)3 2|3 ^5 4(7 4|

(\

37

7

38

'3 4 1

42

43

*6

44

n

45

'B

46 47

0 0

48

A 1

49

Tz

5G

T 3

51

T T

62

r\ 5

63

/

B A D D R ( 0 ) 0 * -

69

N M A S T ER vo * -

67

N Y I O R ' o 1-

N R T C C S 'o*—

6 1

N G TP I 0 'o3-

---

72

N W R P IO ' 0 * -

N S E L D A T A ' o k _

78

1

N Y IO W ' o * - H O LD A o 1—

68

7

13

19

26

31

33 40 66 73 76

OG

01

02

03 04 05 06 07

D8

09

010

on

012

013 D M 015

5 10 r on

Ju u u J u u u

ORTA0 OHTRl 0ATA2 0ATA3

DATA4 DflTAS DATA6 0ATA7 DATA8

DATA9

DATA 10

DATA 11 0ATA12 DATA13

ORTA 14

U304onTfl15

N H A S TE R F E 3G 3 G

NY [OR

NRTCCS NGTPl0

NWRPIO NSELDATA NY I0W HLDfl

ON 01 0ND2 0ND3 QND4 0ND5

0ND6

GN07 0N08 CN09

3 KOU

O O I- t- nr

h oi a u

z 2 z 2 cr

EDATflO E0RTAL EDAfA2

EDATA3 E0ATA4 E0ATA5 EDATA6 E0ATA7

OTR

N646EN

NC246EN

0EGATECTL

NF245EN

NF245DIR

NINTA

CB 3 0 32 . 1

CB3033.1

CB 3 G o 4 . I

CB30I5.1

C B 3 0 f e .l

TbTo^ T"

CB3038.1

'cb?0#97T

- t > N S M E M R '

- O N S M E M W '

-k u NM E M R '

-' o N ME M W '

B7

N10W <f—

N I O R ' < ? -

N R T C W R ' <f— N R TC RD ' < * -

AE N

BYPASS_FOR_3030

VCC

CB 3 0 4 1 . 1

CB3ofe"

8

0,

9 b 18

_

z

11

a

14

4,

IS 16

17

7,

20

___

8,

21 9, 22

JO/

23

11,

28

12,

27

13,

28

14,

29

15?

76

0,

77 70

i

79

3/

89

4,

81

5,

02

6,

63

___

l)

B D AT A ( 1 5 :0 )

>*i

C53g|3. [

CB3 Gi '4. 1

C B 3 o f e

essoin CB3oi?

7.1

CB 3 G 4 8 .1

------II

----

ED AT A(7 :0 )

- t > 0 T R

55

----

to N D 6 4 6 E N v

P®

----

*oN C 2 4 5 E N '

-‘o D E G A T E C T L

■‘O N F 2 4 5 E N '

H

----

t> N F 2 4 5 D I R

52

----

ka N I N T A '

NR E S E T '

■t> I OC K PCK EN I O C K

5-17

PC30-III SERVICE MANUAL

Schematic #313236, Rev. 1.4

Sheet 4A of 12

VC C IK

q 1 b

16 16 ^ 4 | 14 14 | 1 4| ^ 14 |

VCC r~ VCC — VCC vcc" VCC VCC vcc

I U403 1U404 1 U4Q5 iU406 IU407 1 U408 il)409 1

OND

14

vcc

U4G4

ONO

VCC

U405

ONCi

&

J~

__

OND ~j~ ONO _ ~j~ OND ONG ~|~ ONO ONO ONO j~

VCC

U407

ONO

VCC

LUG 8

ONO

VCC

U 4 1 G

CB*4^(J3 C B 4 G 4

C B 4 0 6 CES4G8

CE$f$9 CB4 ?0 c

14

“T

— r

— i

1

I

VCC

U41 1

ONO

1

J

vcc

IJ415

OND

___1___

I

elfi7 c ttfs

5-18

Schematic #313236, Rev. 1.4

Sheet 4B of 12

PC30-III SERVICE MANUAL

vcc

SH.4 NY I OKI' 02-

U 4 1 6

1 3 74F32

SH.6 IOW-DLY' c>2-

12

1 1

U501

7 4 LS 14

U807

t > 5

7 4 F 0 9

U 4 1 6

1 74F32

2 F> 3

U416

4 74F3Z

. O 6

SH. 3

REN o

SH.3 BRDDR(9 ?0)

U41S

1 0 74 F 32

SH. 3 SH. 3

NIOW ' d 1 NIOR' o 2-

SH.8R SH.8R SH.8B

SH.8R

ESYSCLK

OSCR

tcr

BLRL.E

NREFRESH

U 4 1 4

74LS125R

10

R406

4.7K

U4Q1

PRL20L1Q

II 12 13 14

023 IS 1/02 2 16 1/021

1/020 17 1/019 18 1/018 19 1/017 I 10 1/016 I l 1 1/ 015

014

113

U402

74RLS244R

-t> DLYWR SH.8B

U 41 3 74F04

4 > 4

U 4 1 4

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13

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23

?i

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NGTPI 0 '

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■^O TCLCK

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FB408

FB4G3

t l f -

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-t> 05C SH o 5

SH ♦ 2 SH ♦ 8R SH.2 SH.2 SH. 8R SH ♦ 2 SH. 2 SH ♦ 9 SH ♦ 2 SH. 9

—^O

TC

SH „ 5

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BALE

SH. 5

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V C C

L

24

m

20

00

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m

14

m

14

1 4

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VCC

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in

vcc

U 4 1 6

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12 10 #1 7

CB401 CB402 CB412

* 33 ^ .1 7 7

CB413 CB414

5-19

PC30-III SERVICE MANUAL

Schematic #313236, Rev. 1.4

Sheet 5 of 12

5-20

Schematic #313236,

Sheet 6 of 12

PC30-III SERVICE MANUAL

Rev. 1.4

5-21

Schematic #313236, Rev. 1.4

Sheet 7 of 12

PC30-III SERVICE MANUAL

BRDDRl 18 :0 ) o 2-

flDDRl 18 : 0)

0

B

16^

6H.12

NENRRBF R ' o*-

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74F253

CB723CB724 CB72S

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128 13S

BUFENfl o -

. T J

z

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iy

3R 2 Y 1 3B 3Y !

4R 4Y 4B

CO o

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3

..2

6

sTS

E

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11

, l 1

10

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14

si 2

13

U703

74F 258

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MR 1 7 o — MR 18 d —

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. 33

CF/U4

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RP701

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256X4 DRRM

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NWEL'o-jt

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64K _DRR M

U7Q9

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CRS' 101 WE' 102

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104

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U 7 1 3

s —

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b

7

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11

2

T T

si 131

ko

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NCRS 1 L 'o - Jb

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cr sv roi

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103 104

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64K JDRR M

U 7 1 4

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r

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4

r

b

u

^

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si J3

14

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BDRTR(1 5 r 8 )

r----—7

----

— 7 —-1—7

----

—-7

----—7----—7----—7----

—j

* ce7?s CeVl6 ce??7 Cg?? 8 Cg^?9 CS^I o Cd7lL CB’7^2

5-22

Schematic #313236, Rev. 1.4

Sheet 8 of 12

NI 0 C 5 1 5 ' NHDID16

O - O -

NOT LO ADED

220PF

4C8Q1

SH * 5

RESET IN ' O

SH ♦ 4

C L OC KO

SH * 3

S 0 'E >

S H. 3

SI 'O-

SH ♦ 3

H O L D A O

SH ♦ 3

M N I O O

SH ♦ 3

ADDR ( 0 J O

SH * 3

ADDRl 1 )E >

S H 43

BADDRl 3 J O

SH.12

NA BH E ' O

S H , 5

NIOC HK 'E >

S H . 3

N8USY ' O

SH.3

NE R R O R ' O

SH • 43

N C S 28 7'O

SH ♦ 3

E N IO CK O

S H . 2

NSETS D 'O -

S H 43

EDA T R( 7 )E >

SH ♦ 4

n n ;i i c s ‘o

SH ♦ 7

FI 6O

S H 45

NZ E R O W S ' O

.11

I4Q9

►

-----------

LSj

_

____________

a_

- >

--------

74F0B |

S H . 5

1 OCHR DY O-

SH * BB

HRQ 10 -

SH 4 BB

NRENl ' O-

SH ♦ BB

NDM AME MR 'O-

SH 4 BB 0UT1O-

SH43

NRAM SL ' O -

S H 48B

NREN2 'O -

S H 43

ADR ( 0 )O -

- t D - 2-

FB8Q 1

L

Y 8 01

14.318MHZ

vcc

84

62

NRESIN

8£

X 1284

81

X9284

67

S0

6F-

SI

2C

HLDP

25

MNIO

14

A0

43

CB801i

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B8G12

T5

6S

58

28 57 29

CJ

LJ

>

CM

t_)

(-J

16

66

70

60

19

64

59

76

79 23

17

22

21

26

31 65 71 61

63 27 56

_1_8

4

fit

XA3 NX SHE NIOCHK N3U5Y NERROR NCS287

EAIOCK

RC

XD7

NNMICS

F16

NZPQWS NIOS36

X 18284 X28284

riDP i ND

MDPINi EBRMCK

IGCRDY

HRQ 1 NRENl

NDMRHR OUT 1 NENDCY NRAMSL NFAST

NREN2

N.C ENPAL2 XA0

U80 1

FE30GG

NY I OR NY IDW

NYMEMN

NYMEMR NRESET PROCLK NREADY

RESCPU

AIOW

NINTR

ALE

DTNR NDEN0 NDEN1

NNPCS

RST287

NBZ2B6

I0CHCK

NNMI

SY5CLK

DMACLK

PCLK

NPCLK

L5A0

F14M

F11911

CTLOFF

Q1

N 3 RQ1 3 NERFSH REFDET

NRF5H

DMARDY

HL D A 1 CPUHRQ

BALE

NEQMMR

AS

PCK

DIR245 GTE245

3

__

4

__

5

__

5

__ 76 39 77 34

7 51

83 32 45

46

__

49__

32

__

3 55 52 33 13

36

40

54

74

__

73

n

__

36 3Q

48

35

41

12

|72

IB

9

___

150

___

8

__

37 47

__

75

GND1 GND2

42

T

PC30-III SERVICE MANUAL

vcc

o

RP801

721

74F08

-t>NYI 0R'

-t>NYI 0W' J O NY ME MW '

-t> N Y M E M R '

■2O N R E S E T '

SH.3/8B SH 4 3/4 5H ♦ 3/85 /12 SH3 * / 12 SH, 1/ 2/3/ 4/ 5/6 /8 3/9

PAD801

J- \r -

RB10

0

FB802

li

------

12

13

7 4 LS 1 25 A^

U205

- t > NR E RD Y '

SH 4 3

-2O C P U R S T

SH43

-t >N IN T FT

SH43&S H 48B

■^OflLE

-t>D TR

S H »3

JON D 6 46 E N '

SH43

JO M C2 4 5EN '

SH 4 3

-t >M NP C S

SH 4 3

-t> NP R ST

SH ♦ 3

-2ON NP BU SY '

SH43

^ O IO CK

SH • 3

-t>NNM I '

SH 4 3

-t> ES YS CL K

S H «4

•t>DMFICLK

SH ♦ 8B

-JO L R S 0

SH.3

-t>0SCfl

SH, 4

-t >T CL K

S H , 8B

■^O D EG AT E C TL

S H , 3

^ ON I RQI B '

S H , 8B

-t> NE RF SH '

cf>

IECOCD

-t> N R EF R ES H '

SH 4 5£SH 4 7

-t> D MR R D Y

S H , 8B

■^O HOL DR l

SH * SB

■^ OH OL D RQ

SH.3

-t> BL R LE

S H ,4 &S H ,7

■O N G T M E M R'

SH.3

■^ORTCflLE

S H . 2

-t>PC K

SH.3

JO N F 24 5D[R

SH.3

•2O N F 245EN'

SH.3

VCC

-R8Q9

<2 300

^ OCPUCLK SH ► 3 4 SH . I 2

5-23

Schematic #313236, Rev.

Sheet 8B of 12

PC30-III SERVICE MANUAL

R804

R805

VCC

SH.3 EDfl.TRI 7: 0 )0 2 -

CB 8 0 21

Hlr

vcc

VCC

C B § li) 2 2

84

0 -

3 4

5

^ ■

6 7

\§

__

8

k 7

9

SH.546

IR Q 3 C>?

15

SH.546

SH.5

I p q .<•

16

IPQ5 Q>?

17

SH.5410

SH.5

Tpnfi r->sf

18|

IRQ? |~x?

....

.

19

SH.5

I p n q (—s?

26

SH.5

T p n 1 n r~>,?

____

27

SH.5

1 l\ bJ 1 \J 1

_

X1

t p n i i i—

28

SH.5

1^01° o ?

29

SH.5 T p n

m (—n?

61

SH.5

IP C15 O 7

60

SH.5

n p o n r>.?

78

SH.5

npni rs ?

77

SH.5 npno

76

SH.5

U r\ U L |

_

y>

DRC3 O 7

75

SH.5

n r n c i—n’

74

SH.5

n p o r

73

SH.5

npfi7

.....

72

SH. 8fl SH.Bfl

SH. 8 fl 5H.8A

SH. 8fl

SH.Qfl

SHB.fl SH.Bfl

SH. 8fl

SH. 4

SH.8R

SH3/SH8A

SH.8A SH.5 SH .2

U i \ U / L—*x

RLE O 7

57

M 1 d n 1 q ' I—

62

IN ] r\U i O |

_

x1

NIMTfl % Q>7

59

TCLK O*7

23

HMOn K r>>9

12

n m n p n y i—"»?

11

UHM i\ U I Lx

HOLDRl o 7

10

fjrpcDu ' |—v,?

56

INL. \\ 1 JH 1

_

X1 1

........

my T HR '

80

IN 1 1 Ui\ L^X

m vua r—

81

NDMRMFMR vi—

82

NYMFMW ' |—V

63

MPE3ET ' n > ?

63

MM AS TFR '

13

N IR Q8 ' o ’

_____________________________

25

SH. 2

KB01NT O * -------------------------------------------------

14

24

U802

r r p i

IRQ10 IRQ11

IRQ 12 IRQ! 4 IRQ15

DRQQ DRQ1 DRQ2 DRQ3 DRQ5 DRQS DRQ7 RLE NIRQ13 N1NTR TCLK DMRCLK DMARDY HLDfl NRF3H NIOR

NI0W

NMEMR NMEMW

NCLERR

NMASTER NIRQ8 KBINT

4 o 7K

R803

8_

- ^ o

74FQ4

U413

a cd

DflTAO a o DRTP1 DRTR2 DRTR3 DATA4 DRTR5 DRTflB 0ATA7

IRQ3

IRQ4

IRG5 TRQ6

[R0" FE301O

IRQ9

R0 Rl R2

R3

A4 R5 R6 R7 R8 R9

R10

R 11

R12

fl 13

R 1 4

R15

R16

fl 17 fl 18 fl 19

A20

fl 21

A22

A23

AEN

DRCK2

DRCK0 DflCK 1

NDRC KE N

INTR

TC

SYSflLE

NRTCC S

OUT 1

HRQ

GND1 GND2

GND3

GND4

30 31

71 65

42

64

2N3 9041

Q8Q 1

x?

32

_________

2 ,

33

m .

34

4 4

35

5,

36

6,

37

7,

38

T

CO

39

9 /

140 1 0 /

41

l b

44

________

1 2 ,

45

1 3y

46

...

1 4 ,

47

15 ,

48

1 6 ,

49 1 7 ,

50

... 1 3 ,

51

1 9 ,

52

_______

2 0 ,

53

2 1 ,

54

2 2 ,

55

2 3 ;

220 5. IK

PZ801

O

J MODE

1C8 02

47PF

-*o+[2V

U807

74F00

4

— j y

74F04

U 41 3

T l C ^ -

74F00

U41 5

-*oflDR( Q )

-toflDDRl 23:

-t>N R E N 1 '

-•ONDRCK0

■t>NDflCKl t>NDflCK2 t>NDRCK3 t>NDRCK5 t>NDRCK6

ioNDRCK7

SH.3

1 )SH.3

SH ♦ 8fl

-t>NREN2 ' s h .8R

SH.5 SH.5 SH.5 SH.5 SH* 5 SH.5 SH.5

56

Y1 U 4 1 2

74H C T 74

£8

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20

*0* T M T Rfl

70

i— ? i in i r\ u on. j

it n T Pf l SH 4

79

-------------------------------------------------------------------------------

-

— _ _ _ _ _ __ ^ , i l. n om. m-

fr> n D 9 T R SH 3

58

----

i—' n U J 1 U on. j

ir-vM R IP PS v SH3

21

-----

— n— r\ 1 U U J o n .o

tpslfl 1 I T 1 SH BA

69

----- ■ .... l—/ U U 11 un*on

-----------------------------------------------------------------------------------------------------------------t> H R Q 1 s h .8

VCC

16

in

VCC

U803

OND

Oi

F

14

n _

VCC

U80 7

OND

5-24

Schematic #313236, Rev. 1.4

Sheet 9 of 12

PC30-III SERVICE MANUAL

< (XI

CD CD

I CD

CB901 CB902 CB9G3 CB904 CB9G5

5-25

Schematic #313236, Rev. 1.4

Sheet 10 of 12

PC30-III SERVICE MANUAL

9.6MHZ

OS C1 0 O1

vcc

Hn

wcL

MD

SH *9 D S K C H G 'o 2-

N LDORCS'o NL D C R C S No

SH . 5 SH ,6

SH • 6

SH * 5

SH o 4B SH ♦ 3 SH . 3

SH ♦ 6 SH * 3 BP DDRfCDo2-

SH « 6 I R Q6 0 1

ND R C K 2 vo

TCo

N I OH 'o

FD C C S VL>

SH06 IDRTfl( 7:0 )o2-

SH.4fl 1 6 M o

R10G1

FBI 001

'{HD2-

68 LG_BEAD

SH ♦ 4R 9.6 M <*-

SH * 5 RESETo *-

FM O D E

IDX

MSG F D S1 ' FD S0 ’

MSI '

FD IR C ' FS TE P '

FWD '

FH G' FT K0 '

FWP '

FR DD '

FHS '

CB 1 G 0

.1

vcc

I— ,

30 l i

40

15

J?

17 ie

5

J

________________

.

6

J

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1

Jt

____________________

2

;t 3

4

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____________________

16

J

B 9

IE

3

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u

0-^

12 13

7

14

VCC

DRV

HS '

DMA LD 0 R ' WE ' LD C R '

WD '

DR C K ' TC R DN

ST EP '

HR '

D IRC '

CS ' R 0

PC VR L

IRQ

WD37C65 Ubl

U 1001

DS2 '

DB0

M0 1 '

DB1 DB2

M02 '

DB3 DB4 DB5

RDD '

D B6 DB7

HP '

TRG 0 '

CLK1

IDX'

CL K 2

RST

HDL '

RHC '

VSS

22

25

26

27

29 28 24

30

32

33

34

20

37

38

39

31

R1006

VCC,

150

V C C I A

P 1 4

vcc

P 1 0O2|

0N0

7

CB f 002

PAD 1004

D04 T ~

t ] Q

□R

— t i n

d h

PAD 1005

7406

f

. 1 "

10

12

_i4

16

18

22

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28

3S!

34

13_

17

ISL

I2J

__

122

oSL H

O

Z5_

0-^1—

CN1 G0 1

FL 0 P P Y _ D I S K

VCC

tR 1002

4 ♦ 7 K <

vcc

R1 G 0 3

IK

PAD 10Q2 Q

PC8 _P fl D □

Lcu-

vcc

[J PA D 1 G G 1 □ P C B _ P A D

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VC C

s R1G04

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PRD 1003

P C B _ P R D

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□

Q-

FM0DE

7406

U 1 002

U807 U1O02

5-26

PC30-III SERVICE MANUAL

Schematic #313236, Rev. 1.4

Sheet 11 of 12

o>BDRTft( 15:0 ) SH.3

VCC

CB 1101 ±

vcc PRD 1101

------

rO © © i

. 1

<7

DIGITflL

PflDl102

—^

vcc

J

27

10

rz

9 D

^4

7

'/'5—

6

■^r

5

n ~

4 3

25

' 1 u

24

'TT~

21

r vz~

23

2

^T4

26

15

16

22

20

VCC

VPP

PGM '

RO

fll

R2 R3 R4

Ro R6 R7 R8 R9

R1Q

R1 1 R 1 2

R1 3

OE '

CE'

DO D1 D2 03 04 D5 06 D7

11

0,

12

b

13

Zy

15 16

b

3 7

b

18

b/

19

___

V

R0M2

U 1 1 0 1

DND

VCC

o

CB 1 102 4=

vcc PflDl 103

9 l O © 0-|

14

K7

DIGITRL

.1

<7

DIGITRL

P RD 1 104 v?cc

(jMSv-r—J

— O 0 0-

27 10

15

^3

B

/T ~

7

'b

6

/6

5

/'J " '

4

/Q

3

25

M U '

24

''ll

21

/TT~

23

/T3

2

M T -

26

/

22

16

V

DIGITRL

{T

20

vcc

VPP PGM'

RO

fll

R2 R3 R4 R5 R6

R7 R8 A9

RIB All

R1 2 R13

OE'

CE'

DO D1 D2 D3 D4 D5 06 D7

11

e,

12

y-

13

T L

15

U /

IB

L

17 18

H /

R0M2

U 1 102

DND

IS

14

\7

DIGITflL

<7

DIGITRL

SH ♦ 3 BflDDR ( 16*1 lo 2-

SH o 3 NP R0M SEL 'o 2-

5-27

PC30-III SERVICE MANUAL

Schematic #313236, Rev. 1.4

Sheet 12 of 12

5-28

r

Commodore

Computer Systems Division

1200 Wilson Drive

West Chester, PA 19380

J

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Commodore PC30-III a

Specifications and Main Features

Frequently Asked Questions

User Manual