Monitor Troubleshooting - GE Voluson E8 Service Manual

GE H RAFT
EALTHCARE
D KTD102576, R
IRECTION
7-8-5

Monitor Troubleshooting

No image
Color is not uniform
Colored streaks appear in image
Screen image is not centered or sized
properly
Picture is fuzzy
Video test patterns are not clear,
bright, parallel or square
NOTICE The monitor should automatically degauss itself each time power is applied if you wait at least 15
seconds before you turn power back ON.
!! NOTICE:
For further details refer to
7-26
7 DRAFT (A
EVISION
Fault symptom
Section 6-3 "LCD Monitor Adjustment" on page
Section 7-8 - Troubleshooting Trees, Instructions and Tech Tips
23, 2012)
UGUST
Check these items
Check the power cord is properly connected.
Check the video cable is properly connected.
Check no pins of the video cable are bent.
Check if video is present on backplane.
Turn ON the power to activate the Auto-Degauss function.
Check for presence of magnetic sources near the monitor.
Eliminate the sources and then degauss the monitor.
Adjust the picture location, picture size, picture rotation or pincushion distortion.
Some video modes do not fill the screen to the edge of the monitor.
There is no single answer to solve the problem.
This phenomenon may occur on higher refresh rates (vertical frequency).
Adjust the picture contrast and picture brightness.
Some SVGA cards having an excessive video output level will cause a fuzzy picture
at the maximum contrast level.
Turn ON the power to activate the Auto-Degauss function.
Replace the monitor.
V E8 / V
OLUSON OLUSON
S M
ERVICE ANUAL
6-1.
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