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Check blanking
Pulse
NG
OK
Turn the screen
volume to the right
Back raster appear?
NG
OK
IC701 and ambient
circuit Failure.
130V Line Failure
( Measure the pulse by
sa
on the)
INTERFACE PWB PWE-176
Vertical or Horizontal
bar appear?
NG
CD
Horizontal bar:
H.OSC!DEF!HV
circiut (See item E)
®
Vertical bar:
(See item G)
-38-
Check blanking
circuit (See item D)
CRT Failure
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- Pin Assignments and Signal Levels
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