Sharp VT-3448X Service Manual page 19

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AA/ INPUT AND OUTPUT CHECK
tion audio)
Make sure the output is as specified
pedance. Make sure the output is as specified (2.6
Be sure that the audio output corresponds to
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the video output on the screen.
jacks.
change to the AV mode and make sure the exter-
nal video and audio outputs are accordingly given.
(The AV mode can be picked up between ICH
and OCH.)
The AV mode may also be picked up using the
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TV/VIDEO key on the remote controller.
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PROTECTOR PERFORMANCE CHECK
emitter of Q853 and make sure that the protector
is activated and the stand-by mode is called. (The
POWER LED indicator starts flashing in red.)
that the protector is not activated.
Note : Normally about 19 V
that the protector is activated.
In checking the performance of other protectors
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smoothing electrolytic capacitor of +B line -, pay
attention not to damage or deteriorate any related
element.
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