Service manual

XG-XV1 E/A
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TROUBLE SHOOTING TABLE (Continued)
Checking the chroma and Y signals of IC801
(RGB signal output)
Are there signal inputs at pins (12)(Y
No
signal) and (1 S)(chroma signal) of
P402?
------__----____
Yes
f Go to “Checking the video unit
f circuit”.
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Are there output waveforms at pins
(3)(chroma signal) and (6)(Y
No
signal)of IC816?
Yes
I
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f Go to “Checking IC801 (RGB signal t
f output circuit)“.
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Checking IC806 (3-D noise reduction circuit)
and its peripheral circuits
Are there signal inputs at pins (4O)(Y
signal) and (45)(chroma signal) of
No
IC806?
Are there signal outputs at pins (55)(Y
Are there signal outputs at the
-___-----------_
t Check IC816 and IC801 (RGB signal f
t output circuit).
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