IBM PS/2 CL57 SX Owner's manual

FRONT
PICTURE 1
March 19, 1992
This booklet contains procedures for isolating problems to a FRU, a
Symptom-to-FRU Index, and a parts listing for the IBM Personal System/2
Model CL57 SX.
This pamphlet is intended to be used with the IBM Personal System/2
Hardware Maintenance Reference manual (part number 15F2190, form number
S15F-2190-00) and the IBM Personal System/2 Hardware Maintenance Service
manual (part number 15F2200, form number S15F-2200-00).
Part Number 41G8696
Form Number S10G-4420-01
IBM PS/2 Model CL57 SX HMS
¦ Copyright IBM Corp. 1992
FRONT - 1

FRONT_1 Safety Information
Refer to the Hardware Maintenance Service General Information pamphlet for
the following information:
General Safety
Electrical Safety
Safety Inspection Guide.
Second Edition (March 1992)
The following paragraph does not apply to the United Kingdom or any
country where such provisions are inconsistent with local law:
INTERNATIONAL BUSINESS MACHINES CORPORATION PROVIDES THIS PUBLICATION "AS
IS" WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESS OR IMPLIED, INCLUDING,
BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS
FOR A PARTICULAR PURPOSE. Some states do not allow disclaimer or express
or implied warranties in certain transactions, therefore, this statement
may not apply to you.
This publication could include technical inaccuracies or typographical
errors. Changes are periodically made to the information herein; these
changes will be incorporated in new editions of the publication. IBM may
make improvements and/or changes in the product(s) and/or the program(s)
described in this publication at any time.
It is possible that this publication may contain reference to, or
information about, IBM products (machines and programs), programming, or
services that are not announced in your country. Such references or
information must not be construed to mean that IBM intends to announce
such IBM products, programming, or services in your country.
Requests for technical information about IBM products should be made to
your IBM Authorized Dealer or your IBM Marketing Representative.
IBM may have patents or pending patent applications covering subject
matter in this document. The furnishing of this document does not give
you any license to these patents. You can send license inquiries, in
writing, to the IBM Director of Commercial Relations, IBM Corporation,
Armonk, NY 10577.
¦ Copyright International Business Machines Corporation 1991, 1992. All
rights reserved.
Note to US Government Users -- Documentation related to restricted rights
-- Use, duplication or disclosure is subject to restrictions set forth in
GSA ADP Schedule Contract with IBM Corp.
IBM PS/2 Model CL57 SX HMS
Safety Information
¦ Copyright IBM Corp. 1992
FRONT_1 - 1

CONTENTS Table of Contents
FRONT_1 Safety Information
CONTENTS Table of Contents
FRONT_2 Notices
FRONT_2.1 Trademarks and Service Marks
1.0 General Checkout
2.0 Installed Devices List
3.0 Undetermined Problem
4.0 Hard Disk Partition
4.1 Restoring the Partition
5.0 Power Supply
5.1 Checking the AC Adapter
5.2 Checking the Battery Packs
5.3 Checking the Backup Battery
6.0 Printer
7.0 LCD Panel
8.0 Keyboard
9.0 External Display Self-Test
10.0 Memory
11.0 Symptom-to-FRU Index
11.1 No-Beep Symptoms
11.2 Beep Symptoms
11.3 Miscellaneous Symptoms
11.4 Numeric Error Codes
12.0 How To Use This Parts Catalog
13.0 System Overview
14.0 Parts
IBM PS/2 Model CL57 SX HMS
Table of Contents
¦ Copyright IBM Corp. 1992
CONTENTS - 1

FRONT_2 Notices
References in this publication to IBM products, programs, or services do
not imply that IBM intends to make these available in all countries in
which IBM operates. Any reference to an IBM product, program or service
is not intended to state or imply that only IBM's product, program, or
service may be used. Any functionally equivalent product, program, or
service that does not infringe any of IBM's intellectual property rights
or other legally protectible rights may be used instead of the IBM
product, program, or service. Evaluation and verification of operation in
conjunction with other products, programs, or services, except those
expressly designated by IBM, are the user's responsibility.
IBM may have patents or pending patent applications covering subject
matter in this document. The furnishing of this document does not give
you any license to these patents. You can send license inquiries, in
writing, to the IBM Director of Commercial Relations, IBM Corporation,
Purchase, NY 10577.
Subtopics
FRONT_2.1 Trademarks and Service Marks
IBM PS/2 Model CL57 SX HMS
Notices
¦ Copyright IBM Corp. 1992
FRONT_2 - 1

FRONT_2.1 Trademarks and Service Marks
The following terms, denoted by an asterisk (*) in this publication, are
trademarks of the IBM Corporation in the United States and/or other
countries:
IBM
Personal System/2.
IBM PS/2 Model CL57 SX HMS
Trademarks and Service Marks
¦ Copyright IBM Corp. 1992
FRONT_2.1 - 1

1.0 General Checkout
The diagnostic tests are intended to test only IBM (*) products. Non-IBM
products, prototype cards, or modified options can give false errors and
invalid system responses.
Warning: Drives in the system you are servicing might have been rearranged
or the drive startup sequence might have been altered. Be extremely
careful during write operations such as copying, saving, or formatting.
Data or programs can be overwritten if you select an incorrect drive.
(*) Trademark of the International Business Machines
Corporation.
Subtopics
1.1 Automatic Configuration
1.2 How to Diagnose Combined FRUs
1.3 How to Use Error Messages
1.4 How to Cancel the Power-On Password
IBM PS/2 Model CL57 SX HMS
General Checkout
¦ Copyright IBM Corp. 1992
1.0 - 1

1.1 Automatic Configuration
Warning: A customized setup configuration (other than default settings)
may exist on the system you are servicing. Running Automatic Configuration
may alter those settings. Note the current configuration settings (using
the View Configuration option) and verify that the settings are in place
when service is complete. (For more information about configuration, refer
to the Hardware Maintenance Reference manual.)
IBM PS/2 Model CL57 SX HMS
Automatic Configuration
¦ Copyright IBM Corp. 1992
1.1 - 1

1.2 How to Diagnose Combined FRUs
If an adapter or device consists of more than one FRU, an error code may
be caused by any of the FRUs. Before replacing the adapter or device,
remove the FRUs, one by one, to see if the symptoms change.
IBM PS/2 Model CL57 SX HMS
How to Diagnose Combined FRUs
¦ Copyright IBM Corp. 1992
1.2 - 1

1.3 How to Use Error Messages
Use the error codes displayed on the screen to diagnose failures. If more
than one error code is displayed, begin the diagnosis with the first error
code. The cause of the first error code can result in false error codes
being displayed. If no error code is displayed, see if the error symptom
is listed in the "Symptom-to-FRU Index" in topic 11.0.
IBM PS/2 Model CL57 SX HMS
How to Use Error Messages
¦ Copyright IBM Corp. 1992
1.3 - 1

1.4 How to Cancel the Power-On Password
To cancel the power-on password, do the following:
1. Power-off the system.
2. Remove the keyboard and the top cover.
3. Identify the password-override connector on the system board.
4. Install a jumper over the pins of the password-override connector as
shown.
PICTURE 2
5. Power-on the system and leave it until the POST ends.
Make sure that you remove the jumper from the password-override connector
when you are finished.
To set the password, start the system programs, select Set features from
the Main Menu, then select Set password and unattended start mode, and
follow the instructions on the screen.
+---+
¦001¦
+---+
DOES THE PROBLEM APPEAR TO BE A POWER SUPPLY FAILURE?
Yes No
¦ ¦
¦ +---+
¦ ¦002¦
¦ +---+
¦ Go to Step 006.
¦
+---+
¦003¦
+---+
DO ALL SYSTEM-STATUS INDICATORS REMAIN OFF?
Yes No
¦ ¦
¦ +---+
¦ ¦004¦
¦ +---+
¦ Go to Step 006.
¦
+---+
¦005¦
+---+
- Make sure the power control switch at the rear of the system is set to
ON.
- Go to "Power Supply" in topic 5.0.
--------------------------------------------------------------------------
+---+
¦006¦
+---+
- Power-off the system and all external devices.
- Check all cables and power cords.
- Make sure no diskette is in the drive.
- Power-on all external devices.
- Power-on the system and check for the following responses:
1. All system-status indicators appear once for about 1 second.
Note: Some indicators remain on and others go off after 1 second.
2. Memory test (the number increases.)
3. Audible responses:
One short beep
- or -
Two short beeps.
DID YOU RECEIVE THE RESPONSES LISTED ABOVE?
Yes No
¦ ¦
¦ +---+
¦ ¦007¦
¦ +---+
¦ Go to Step 013.
¦
¦
+---+
¦008¦
+---+
- Press Ctrl+Alt+Delete. When the cursor moves to the upper right, press
Ctrl+Alt+Insert to start the system program. If the IBM logo screen
does not appear, insert the backup Reference Diskette into the diskette
drive and repeat this step.
1. If you are not at the Main Menu, follow the instructions on the
IBM PS/2 Model CL57 SX HMS
How to Cancel the Power-On Password
¦ Copyright IBM Corp. 1992
1.4 - 1

screen to advance to the Main Menu.
If you cannot advance to the Main Menu, go to "Symptom-to-FRU Index"
in topic 11.0.
- or -
If that does not correct the problem, go to"Undetermined Problem" in
topic 3.0 .
Notes:
a. If the system has an incorrect keyboard or numeric keypad
response, go to "Keyboard" in topic 8.0.
b. If the printer has incorrect responses, go to "Printer" in
topic 6.0.
c. If the external CRT display has problems such as jittering,
rolling, shifting, or being out-of-focus, go to "External
Display Self-Test" in topic 9.0.
2. Press Ctrl+A and run the system checkout.
IS THE LIST OF INSTALLED DEVICES CORRECT?
Yes No
¦ ¦
¦ +---+
¦ ¦009¦
¦ +---+
¦ Go to "Installed Devices List" in topic 2.0.
¦
+---+
¦010¦
+---+
- Run the diagnostic tests.
DID THE TEST IDENTIFY A FAILURE?
Note: If the test stops and you cannot continue, replace the last device
tested.
- or -
If any POST error code appears, go to"Symptom-to-FRU Index" in
topic 11.0 .
Yes No
¦ ¦
¦ +---+
¦ ¦011¦
¦ +---+
¦ You may have an intermittent problem:
¦ Check for damaged cables and connectors.
¦ Reseat all adapters, drives, and modules.
¦ Start an error log and run the tests multiple times.
¦ Check the power supply in use when the error is reported (see
¦ "Power Supply" in topic 5.0).
¦ Check "Symptom-to-FRU Index" in topic 11.0. If this did not fix
¦ the problem, go to "Undetermined Problem" in topic 3.0.
¦
+---+
¦012¦
+---+
Go to "Symptom-to-FRU Index" in topic 11.0.
--------------------------------------------------------------------------
+---+
¦013¦
+---+
DID YOU RECEIVE NOTHING DISPLAYED ON THE SCREEN?
Yes No
¦ ¦
¦ +---+
¦ ¦014¦
¦ +---+
¦ If all system-status indicators do not appear for about 1 second,
¦ go to Step 016 under "Power Supply" in topic 5.0.
¦ If the memory count is incorrect, go to "Memory" in topic 10.0.
¦ Go to "Symptom-to-FRU Index" in topic 11.0.
¦ If that does not correct the problem, go to"Undetermined Problem"
¦ in topic 3.0 .
¦
+---+
¦015¦
+---+
Go to "Symptom-to-FRU Index" in topic 11.0.
- or -
If that does not correct the problem, go to"Undetermined Problem" in
topic 3.0 .
IBM PS/2 Model CL57 SX HMS
How to Cancel the Power-On Password
¦ Copyright IBM Corp. 1992
1.4 - 2

--------------------------------------------------------------------------
IBM PS/2 Model CL57 SX HMS
How to Cancel the Power-On Password
¦ Copyright IBM Corp. 1992
1.4 - 3

2.0 Installed Devices List
The Installed Devices List shows the presence of devices on the system.
If an adapter or device is missing from the list, you may have one of the
following conditions.
Warning: A customized setup configuration (other than default settings)
might exist on the system you are servicing. Running Automatic
Configuration can alter those settings. Note the current configuration
settings (using the View configuration) and verify that the same settings
are in place when service is complete. (For more information about
configuration, refer to the Hardware Maintenance Reference manual.)
The protected partition on the hard disk or the Reference Diskette you
are using does not contain the code required to support that device.
An adapter or device is defective.
The device missing from the list is an unrecognizable drive or
adapter.
The device missing from the list requires an additional diskette.
(See the service manual.)
A power supply voltage is incorrect (see "Power Supply" in topic 5.0).
If the adapter is on the list, run the adapter diagnostics tests. If the
list contains an adapter or device that is not installed, go to
"Undetermined Problem" in topic 3.0.
IBM PS/2 Model CL57 SX HMS
Installed Devices List
¦ Copyright IBM Corp. 1992
2.0 - 1

3.0 Undetermined Problem
You are here because the diagnostics tests did not identify the failing
FRU.
Check the power supply in use (see "Power Supply" in topic 5.0). If the
power supply is operating correctly, return here and continue with the
following procedure.
1. Power-off the system and remove the battery packs from the system.
2. Remove or disconnect one of the following devices or adapter: ( Do not
isolate FRUs that are known to be good.)
a. Non-IBM devices
b. Modem, printer, mouse, or other external device
c. IC DRAM card
d. Hard disk drive (fixed disk drive) or diskette drive
e. Communications cartridge
f. Any adapter and device.
3. Power-on the system and start the system program.
4. Press Ctrl+A to run the system checkout. Do not configure the system.
If diagnostics cannot be loaded from the hard disk, try and load them
from the Reference Diskette. Test only those adapters and devices
still attached to the system.
5. If the symptom remains, repeat steps 1 through 3 until you find the
failing FRU or until all FRUs have been removed.
6. If all of the FRUs listed have been removed and the problem remains,
replace the system board.
IBM PS/2 Model CL57 SX HMS
Undetermined Problem
¦ Copyright IBM Corp. 1992
3.0 - 1

4.0 Hard Disk Partition
A protected partition on the hard disk contains the system configuration
data set, system setup programs, and customer and advanced diagnostics.
System setup and diagnostic programs can be loaded from this partition by
pressing and holding Ctrl+Alt+Delete and, as soon as the cursor moves to
the upper right corner of the display, pressing and holding
Ctrl+Alt+Insert.
Subtopics
4.1 Restoring the Partition
IBM PS/2 Model CL57 SX HMS
Hard Disk Partition
¦ Copyright IBM Corp. 1992
4.0 - 1

4.1 Restoring the Partition
If a system or hard disk problem prevents system setup or diagnostic
programs from being loaded from the protected partition, load and run the
programs from the Reference Diskette. If no errors are found, restore the
programs to the protected partition on the hard disk using the following
procedure.
1. Start the system with the customer's backup copy of the Reference
Diskette installed.
2. Select the Backup/Restore system programs from the Main Menu.
3. Select the Restore the system partition to load the system setup and
utility programs, and the customer and advanced diagnostics programs
onto the system partition of the hard disk.
If this does not correct the problem, use the backup copy of the Reference
Diskette to format the hard disk and then restore the programs to the
protected partition. If the problem remains, return to the I998XXXX,
I9990303 error code (on page 11.4 in the Symptom-to-FRU index).
Note: After the programs have been restored, the Diskette and F1 prompts
appear, unless an operating system is present.
IBM PS/2 Model CL57 SX HMS
Restoring the Partition
¦ Copyright IBM Corp. 1992
4.1 - 1

5.0 Power Supply
As the battery packs and backup battery have a given lifespan, having
spares of these batteries on hand can eliminate problems. When one of
these batteries is suspected of failing, the spare can be used in its
place. One or all of these batteries can become discharged if a short
circuit is present in the system.
1. Replace the failing FRU if the power supply problem is caused by a
short circuit.
2. Determine if the backup battery has become discharged. Replace the
discharged battery with its spare.
3. Observe the Battery ID indicators or swap the two battery packs to
determine which one has become discharged.
The test procedures for each power device are found on the following
pages.
"Checking the AC Adapter" in topic 5.1.
"Checking the Battery Packs" in topic 5.2.
"Checking the Backup Battery" in topic 5.3.
None of the above. Follow the steps below.
+---+
¦001¦
+---+
DID THE PROBLEM OCCUR ONLY WHEN USING THE AC ADAPTER?
Yes No
¦ ¦
¦ +---+
¦ ¦002¦
¦ +---+
¦ Go to Step 004.
¦
+---+
¦003¦
+---+
Go to "Checking the AC Adapter" in topic 5.1.
If "Checking the AC Adapter" does not correct the problem, replace the
voltage converter.
--------------------------------------------------------------------------
+---+
¦004¦
+---+
DID THE PROBLEM OCCUR ONLY ON BATTERY POWERED OPERATION?
Yes No
¦ ¦
¦ +---+
¦ ¦005¦
¦ +---+
¦ Go to Step 007.
¦
+---+
¦006¦
+---+
- Make sure the battery packs are fully charged.
- Go to "Checking the Battery Packs" in topic 5.2 and check the battery
packs. If that does not correct the problem, replace the voltage
converter.
--------------------------------------------------------------------------
+---+
¦007¦
+---+
DO ALL SYSTEM STATUS INDICATORS REMAIN OFF AFTER POWER ON?
Yes No
¦ ¦
¦ +---+
¦ ¦008¦
¦ +---+
¦ Go to Step 016.
¦
+---+
¦009¦
+---+
- Remove the following if installed:
Battery packs
Backup battery
IC DRAM card
Internal Data/Fax modem
Serial adapter
IBM PS/2 Model CL57 SX HMS
Power Supply
¦ Copyright IBM Corp. 1992
5.0 - 1

Numeric keypad
Math coprocessor
Mouse
External display.
- Go to Step 010.
--------------------------------------------------------------------------
+---+
¦010¦
+---+
- Plug in the AC adapter and power-on the system.
DOES ANY INDICATOR REMAIN ON?
Yes No
¦ ¦
¦ +---+
¦ ¦011¦
¦ +---+
¦ - Power-off the system and remove the following.
¦ Hard disk drive
¦ Diskette drive
¦ LCD cables
¦ Keyboard flexible cables
¦ - Power-on the system again.
¦ - Go to Step 013.
¦
+---+
¦012¦
+---+
Suspect one of the options or devices.
- Reinstall each of the options or devices to the system one at a time,
and power-on the system to see if the original problem occurs.
- Replace the last installed option or device when the problem occurs.
--------------------------------------------------------------------------
+---+
¦013¦
+---+
DOES ANY INDICATOR REMAIN ON?
Yes No
¦ ¦
¦ +---+
¦ ¦014¦
¦ +---+
¦ - Replace the following FRUs one at a time until the problem is
¦ corrected.
¦ Indicator card
¦ System board
¦ Voltage converter
¦
+---+
¦015¦
+---+
Suspect one of the devices.
- Reinstall each of the devices to the system one at a time, and power-on
the system to see if the original problem occurs.
- Replace the last installed device when the problem occurs.
--------------------------------------------------------------------------
+---+
¦016¦
+---+
- Observe the system-status indicators for about 1 second after power on.
+------------------------------------------------------------------------+
¦ System-Status ¦ ¦ ¦
¦ Indicator ¦ Condition A ¦ Condition B ¦
+-----------------------+------------------------+-----------------------¦
¦ ¦ ¦ ¦
¦ Power-On ¦ Off ¦ On ¦
¦ Suspend Mode ¦ Off ¦ On ¦
¦ Scroll Lock ¦ On ¦ Off ¦
¦ Caps Lock ¦ On ¦ Off ¦
¦ Numeric Lock ¦ On ¦ Off ¦
¦ Diskette Drive in Use ¦ On ¦ Off ¦
¦ Hard Disk Drive in Use¦ On ¦ Off ¦
¦ Battery ID 2 ¦ Off ¦ On ¦
¦ Battery Status 2 ¦ Off ¦ On ¦
¦ Battery ID 1 ¦ Off ¦ On ¦
¦ Battery Status 1 ¦ Off ¦ On ¦
¦ Carrier Detect ¦ - ¦ - ¦
¦ ¦ ¦ ¦
+------------------------------------------------------------------------+
If the status is equal to one of the above conditions, replace the
IBM PS/2 Model CL57 SX HMS
Power Supply
¦ Copyright IBM Corp. 1992
5.0 - 2

voltage converter. If the status differs or replacing the voltage
converter does not correct the problem, go to "Undetermined Problem" in
topic 3.0.
--------------------------------------------------------------------------
Subtopics
5.1 Checking the AC Adapter
5.2 Checking the Battery Packs
5.3 Checking the Backup Battery
IBM PS/2 Model CL57 SX HMS
Power Supply
¦ Copyright IBM Corp. 1992
5.0 - 3

5.1 Checking the AC Adapter
If the Power-On indicator is not on, check the power cord of the AC
adapter for proper installation and continuity.
1. If any noise can be heard from the AC adapter when it is plugged into
line voltage, replace the AC adapter with a new one.
If no noise can be heard from the adapter, go to Step 3.
2. If the noise still comes from the new AC adapter, suspect the system
unit. Replace the AC adapter with the original one, then go to the
next step. If no noise comes from the new adapter, the original
adapter has the problem.
3. Unplug the AC adapter cable from the system and measure the output
voltages at the plug of the AC adapter cable. Connect the minus lead
of the volt-ohm meter to pin 3 during the measurement.
PICTURE 3
+------------------------------------------------------------------------+
¦ Pin ¦ Voltage (V dc) ¦
+------------------------------------+-----------------------------------¦
¦ 1 ¦ +18 to +22 ¦
+------------------------------------+-----------------------------------¦
¦ 2 ¦ +17 to +21 ¦
+------------------------------------+-----------------------------------¦
¦ 3 ¦ GND ¦
+------------------------------------+-----------------------------------¦
¦ 4 ¦ Communication GND ¦
+------------------------------------------------------------------------+
If the voltages are not correct:
1. Unplug the AC adapter from the ac power outlet and leave it for a
few minutes.
2. Plug the AC adapter into the ac outlet.
3. Measure the output voltages of the AC adapter.
4. If the voltages are still not correct, replace the AC adapter.
If the voltages are OK, plug the cable into the system and try the
failing operation again.
If the problem still remains, replace the voltage converter. If the
problem disappeared, suspect the installation and continuity of the AC
adapter cable.
IBM PS/2 Model CL57 SX HMS
Checking the AC Adapter
¦ Copyright IBM Corp. 1992
5.1 - 1