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Display Troubleshooting (AM, A19)
This section contains the following information:
Evaluating your Display
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Evaluating your Display
There are four criteria against which your display is measured:
Background Lamp Intensity
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Green, Red or Blue Stuck Pixels
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Dark Stuck Pixels
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Newton's Rings
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Evaluate the display as follows:
If either the A19 GSP, A7 CPU or A20 assemblies are replaced, perform a
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If it appears that there is a problem with the display, refer to the
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troubleshooting information that follows.
If the new display appears dim or doesn't light see "Backlight Intensity
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Check, n next.
Backlight Intensity Check
Required Equipment and !bols
Probe . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . , . . .Tektronix J6503
Light Occluder . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Tektronix 016-0305-00
Antistatic Wrist Strap . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . HP P/N 9300-1367
Antistatic Wrist Strap Cord . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . HP P/N 9300-0980
Static-control 'Ihble Mat and Earth Ground Wire . . . . . . . . . . . , HP P/N 9300-0797
Note
This procedure should be performed with a photometer and only
by qualified personnel.
Digital Control Troubleshooting
30 minutes. Photometer
30 minutes.
warmup time:
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Troubleshooting
