Read Sharp XG-XV2E (serv.man2) Service Manual online
42
XG-XV2E/M/A
TROUBLE SHOOTING TABLE
(Continued)
No color or unusual tone (NTSC, PAL)
Yes
No
Go back to the signal processing
block.
block.
Yes
No
Check the oscillation of X801 and
X802, and their peripheral circuits.
X802, and their peripheral circuits.
Check IC803, IC804 and their
peripheral circuits.
peripheral circuits.
No color or unusual tone (SECAM)
Yes
No
Go back to the signal processing
block.
block.
Yes
No
Check the X802 oscillation, IC802
and their peripheral circuits.
and their peripheral circuits.
Check IC803, IC804 and their
peripheral circuits.
peripheral circuits.
No or unusual Y signal
Yes
No
Go back to the signal processing
block.
block.
No
Check IC801 and its peripheral
circuits.
circuits.
Yes
No
Check IC811 and its peripheral
circuits as well as IC805 (AGC).
circuits as well as IC805 (AGC).
Yes
Check IC803 and its peripheral
circuits.
circuits.
Is there Y signal output at pin (17) of
IC811?
IC811?
Is there Y signal output at pin (40) of
IC801?
IC801?
Is there Y signal input at pin (21) of
IC801?
IC801?
Is there chroma signal input at pin
(20) of IC802?
(20) of IC802?
Are there signal outputs at pins
(11)(R-Y) and (12)(B-Y) of IC802?
(11)(R-Y) and (12)(B-Y) of IC802?
Are there signal outputs at pins
(46)(R-Y) and (45)(B-Y) of IC801?
(46)(R-Y) and (45)(B-Y) of IC801?
Is there chroma signal input at pin
(20) of IC801?
(20) of IC801?
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