IBM PS2 Model 55 SX Hardware Maintenance Service: Difference between revisions

(One intermediate revision by the same user not shown)

Line 1:

The '''IBM PS/2 Model 55 SX Hardware Maintenance Service''' is IBM's service pamphlet for the PS/2 Model 55 SX (8555), part number 91F8637, form number S15F-2195-02, copyright 1991. The hosted copy is a 35-page PDF made in 2009 from IBM's BookManager edition, numbered by topic. Its front page describes it as containing "procedures for isolating problems to a FRU, a Symptom-to-FRU Index, and a parts listing", to be used with the ''PS/2 Hardware Maintenance Reference'' (15F2190, S15F-2190-00) and ''Hardware Maintenance Service'' (15F2200, S15F-2200-00) manuals; safety information is in the ''Hardware Maintenance Service General Information'' manual. The parts list also covers the Model 55 LS front cover.

== Contents ==

* 1.0 General checkout.

* 2.0 Installed devices list: automatic configuration, device types, SCSI and non-SCSI devices.

* 3.0 Power-on password; 4.0 Undetermined problem.

* 5.0 Power supply voltages and fan.

* 6.0 Enable and disable settings (SCSI presence error reporting).

* 7.0 Display self-test; 8.0 Display Adapter 8514/A; 9.0 Keyboard; 10.0 Printer; 11.0 Memory.

* 12.0 Symptom-to-FRU index; 13.0 How to use this parts catalog; 14.0 System overview; 15.0 Parts, including the power supply and fan assembly, FRU 27F4166.

== What this manual does not contain ==

There are no removal procedures, schematics or component values. The supply and fan are one FRU.

== What it settles ==

IBM's supply check (5.0): power off, remove the supply connectors P7 and P14 from the system board, power on and measure between the pins given. IBM lists each check as a pin pair and a range, without naming the outputs:

{| class="wikitable styled-table"

|+ Power check, Model 55 SX HMS topic 5.0

! Minimum !! Maximum !! − lead !! + lead

|-

| +4.8 V || +5.2 V || P7-5 || P7-10

|-

| +4.5 V || +5.4 V || P7-9 || P7-5

|-

| +11.5 V || +12.6 V || P7-5 || P7-3

|-

| +10.8 V || +12.9 V || P7-4 || P7-8

|-

| +4.8 V || +5.2 V || P14-1 || P14-3

|-

| +4.8 V || +5.2 V || P14-1 || P14-4

|-

| +4.8 V || +5.2 V || P14-2 || P14-5

|}

If the voltages are wrong, check the power cord for continuity; if the cord is good, replace the power supply. If the fan is not running, replace the power supply.

== Pages that cite this document ==

* [[IBM PS2 Model 55 Technical Reference (February 1989)]], [[IBM PS2 Model 55 Technical Reference (October 1990)]], [[IBM PS2 Model 55SX HITR Supplement]] and [[IBM PS2 SCSI-A Technical Reference]] list it as related.

<pdf> File:IBM PS2 Model 55 SX HMS.pdf </pdf>

~~IBM PS/2 Model 55 SX (8555) Hardware Maintenance Service. IBM part number S15F-2195.~~

Download: [[:File:IBM PS2 Model 55 SX HMS.pdf|IBM PS2 Model 55 SX HMS.pdf]]

Download ~~the IBM PS2 Model 55 SX Hardware Maintenance Service here~~: [[:File:IBM PS2 Model 55 SX HMS.pdf]]

[[Category:IBM Service Manuals]]

[[Category:Service Manuals]]

@@ Line 1: / Line 1: @@
+<templatestyles src="Template:StyledTable/styles.css" />
+The '''IBM PS/2 Model 55 SX Hardware Maintenance Service''' is IBM's service pamphlet for the PS/2 Model 55 SX (8555), part number 91F8637, form number S15F-2195-02, copyright 1991. The hosted copy is a 35-page PDF made in 2009 from IBM's BookManager edition, numbered by topic. Its front page describes it as containing "procedures for isolating problems to a FRU, a Symptom-to-FRU Index, and a parts listing", to be used with the ''PS/2 Hardware Maintenance Reference'' (15F2190, S15F-2190-00) and ''Hardware Maintenance Service'' (15F2200, S15F-2200-00) manuals; safety information is in the ''Hardware Maintenance Service General Information'' manual. The parts list also covers the Model 55 LS front cover.
+== Contents ==
+* 1.0 General checkout.
+* 2.0 Installed devices list: automatic configuration, device types, SCSI and non-SCSI devices.
+* 3.0 Power-on password; 4.0 Undetermined problem.
+* 5.0 Power supply voltages and fan.
+* 6.0 Enable and disable settings (SCSI presence error reporting).
+* 7.0 Display self-test; 8.0 Display Adapter 8514/A; 9.0 Keyboard; 10.0 Printer; 11.0 Memory.
+* 12.0 Symptom-to-FRU index; 13.0 How to use this parts catalog; 14.0 System overview; 15.0 Parts, including the power supply and fan assembly, FRU 27F4166.
+== What this manual does not contain ==
+There are no removal procedures, schematics or component values. The supply and fan are one FRU.
+== What it settles ==
+IBM's supply check (5.0): power off, remove the supply connectors P7 and P14 from the system board, power on and measure between the pins given. IBM lists each check as a pin pair and a range, without naming the outputs:
+{| class="wikitable styled-table"
+|+ Power check, Model 55 SX HMS topic 5.0
+! Minimum !! Maximum !! − lead !! + lead
+|-
+| +4.8 V || +5.2 V || P7-5 || P7-10
+|-
+| +4.5 V || +5.4 V || P7-9 || P7-5
+|-
+| +11.5 V || +12.6 V || P7-5 || P7-3
+|-
+| +10.8 V || +12.9 V || P7-4 || P7-8
+|-
+| +4.8 V || +5.2 V || P14-1 || P14-3
+|-
+| +4.8 V || +5.2 V || P14-1 || P14-4
+|-
+| +4.8 V || +5.2 V || P14-2 || P14-5
+|}
+If the voltages are wrong, check the power cord for continuity; if the cord is good, replace the power supply. If the fan is not running, replace the power supply.
+== Pages that cite this document ==
+* [[IBM PS2 Model 55 Technical Reference (February 1989)]], [[IBM PS2 Model 55 Technical Reference (October 1990)]], [[IBM PS2 Model 55SX HITR Supplement]] and [[IBM PS2 SCSI-A Technical Reference]] list it as related.
 <pdf> File:IBM PS2 Model 55 SX HMS.pdf </pdf>
-IBM PS/2 Model 55 SX (8555) Hardware Maintenance Service. IBM part number S15F-2195.
+Download: [[:File:IBM PS2 Model 55 SX HMS.pdf|IBM PS2 Model 55 SX HMS.pdf]]
-Download the IBM PS2 Model 55 SX Hardware Maintenance Service here: [[:File:IBM PS2 Model 55 SX HMS.pdf]]
 [[Category:IBM Service Manuals]]
+[[Category:Service Manuals]]

IBM PS2 Model 55 SX Hardware Maintenance Service: Difference between revisions

Josh (talk | contribs)