Panasonic VL-SV75 Series Service Manual page 32

(from previous page)
Is the voltage of
CL230(Main Board) about
3.3V for LCD?
YES
Is the voltage of
CL231(Main Board) about
10.4V for LCD?
YES
Is the voltage of
CL232(Main Board) about
15.3V for LCD?
YES
Is the voltage of
CL233(Main Board) about
-6.8V for LCD?
YES
Replace the LCD unit.
Is the unit powered
ON ?
NO
Replace the Main Board.
END
Reference:
• Refer to LCD start up in
Check around Q230,
NO
R230,R231,
of Main Board.
Check around L230,
NO
IC230,R256,C238,D232,
R237,R238,C241,C243
and C245 of Main Board.
Check around C240,D233,
NO
R249,Q232,R241,C247,
C248,Q233,R246,Q234
and R243 of Main Board.
Check around C239,D231,
NO
C236,R235,Q231,D230,
R232,C232 and C231
of Main Board.
YES
END
[9.3 Signal Route].
Replace the
fault parts.
Replace the
fault parts.
Replace the
fault parts.
Replace the
fault parts.
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YES
Is the unit powered
END
ON ?
NO
YES
Is the unit powered
END
ON ?
NO
YES
Is the unit powered
END
ON ?
NO
YES
Is the unit powered
END
ON ?
NO