1.0 Diagnostic Guide
This section describes the procedures for diagnosing and correcting
problems on the Color Display. Instructions on how to adjust the display
are included.
Refer to the IBM Personal System/2 8511 and 8518 Color Displays Hardware
Maintenance Reference for details of how to get access to the controls on
the video assembly.
DANGER
+------------------------------------------------------------------------+
¦ Some areas of the analog and video card assembly (shown shaded in ¦
¦ Figure 1) carry high voltages. ¦
+------------------------------------------------------------------------+
CAUTION:
Use extreme caution when making adjustments with the display powered on;
these adjustments should not be performed unattended.
The display must never be left unattended with the covers removed and
powered on in a customer environment.
DO NOT adjust RV100 (factory adjustment only).
To prevent electrical shock, power off the display and disconnect the
power cord before you change any part.
High voltages may remain on the anode of the CRT after the display is
powered off. Discharge in accordance with CRT safety instructions.
CRTs are under vacuum. All persons working near an exposed CRT must wear
safety glasses and long-sleeved clothing (or comparable protection).
PICTURE 1
Figure 1. Analog and Video Cards: High Voltage Areas
Subtopics
1.1 Initial Checks
1.2 Self-Test
1.3 Basic Function Checks
1.4 Pattern Checks
IBM PS/2 8511 and 8518 Color Displays HMS
Diagnostic Guide
¦ Copyright IBM Corp. 1992.
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