Sharp VT-3448X Service Manual page 61

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TV TROUBLESHOOTING TABLE
about:
Abnormal
, - - - - - - - - - - - - - - - ,
, - - - - - _ - - - - - - - _ -,
FLOWCHART NO. 2-4
Replace the Fuse
L
I
Normal
about: 115V
I
I
Circuit to be checked:
NO PICTURE, NO SOUND
control
Does the noise level increase at max,
Brightness, and Sound Control ?
Contrast,
Noise increases but
no signal is received.
Check IC801 and
FLOWCHART NO. 2-5
Picture noise
decrease but sound
level varies greatly.
Is there a NO
signal at -
pin (10) of
YES
,
Check
Check or
Is there a
NO replace
signal at
and
pin (8) of
adjacent
and/or
parts.
adjacent
parts.
YES
A
-
Does the 9V (+B)
appear at pin (18) of
Check
the

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