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Symptom:
No picture (black Screen)
Figure 28
Suggestion: The use of a magnifying glass
can help localize the defective printed circuit
board. Use the magnifying glass to take a
close look at the pixels of the screen.
If the pixels are faintly lit, the defect is most
likely located in one of the following boards:
A) SS-Board
B) SS2-Board
C) SS3-Board
1. Check the status of the LED located on
the SS-Board; if the LED is dark, a
malfunction of the SS-Board is suspected.
2. Listen to the buzz noise of the SS-board. If the
buzz noise is not present, a malfunction of the
SS-Board is suspected.
3. Verify the input signals at connector SS23.
48
SS Board
Figure 29
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