IBM 8512 VGA Monitor, 12"

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For general information, see more on Wikipedia: Device
This device is in the WorkNeeded:OriginalParts category because it was flagged as missing information on the original parts. It may have replacement parts listed but those cannot be assumed to be identical to the originals. If you have a list of the original parts, please feel free to add them by copying the relevant table from EditorsToolbox:Tables
This device is in the WorkNeeded:ReplacementParts category because it was flagged as missing information on replacement parts. If it has the original parts listed you may be able to search for replacements using the parametric searches available from parts distributors. If you have or make a list of replacement parts, please feel free to add them by copying the relevant table from EditorsToolbox:Tables
IBM 8512 VGA Monitor
Preliminary Information
Release Year 1987
Leak Risk Medium
Batteries None
Mounting Technology Through Hole
Capacitor Types Aluminum Electrolytic, Tantalum, Ceramic, Polymer
Destructive Entry No
CRT Guides
General Information · Repair Cautions

IBM's first generation VGA display released with the IBM PS/2 computer line.

Known Issues

As a first generation VGA monitor, the 8500 series has its shortcomings. A dot pitch of 0.41 makes the display fuzzy and monitor dims noticeably when drawing light-colored screens, though this is not generally a sign of failing components. There are several known maintenance issues which are detailed in the link.

Symptom or Problem Encountered

Causes

  • Failed power supply, monitor would intermittently turn pink.

Solutions

  • Replace capacitors throughout power supply, main PCB, and neck board. Inspect carbon film resistors in area of flyback transformer for burn marks / shell damage

Disassembly Notes

When replacing caps located under the EMF shielding, be careful to note capacitor heights for the taller capacitors.

Original Parts

Basic PCB Name

SN9979800001 rev. 04 and 08

NOTE: All capacitors listed below are through hole mounted aluminum electrolytics. All capacitances are micro Farads (uF).

Capacitor Specifications and Footprint Information
RefDes Qty Capacitance Voltage Diameter/Size Temp Brand Series
C115, C215, C315 2 0.47 50
C113, C213, C313, C503, C620* 5 1 50
C853 1 1 100
C753, C804, C814, C824 4 1 250
C412 1 2.2 50
C806, C816, C826 3 2.2 315
C106, C206, C306 3 4.7 25
C108, C208, C308, C352, C401,

C516, C556, C601, C602, C751

10 4.7 50

* C620 is not present on rev. 08

** C557 is notpresent on rev. 04

Replacement Parts

Basic PCB Name

Capacitors
RefDes Qty Compatible Part Number Order Links
Digikey

If parts are not available or different selection is preferred, you can use the values in the Original Parts section to perform a parametric search.

Kits

Related Links

References