Read Sharp LC-37AD1E (serv.man9) Service Manual online
46
LC-37AD1E
YES
YES
NO
NO
NO
YES
No picture comes out.
Is the input to pins (139), (124) and (133)
of IC10004 normal?
of IC10004 normal?
Check CN10007 and the
peripheral circuitry.
peripheral circuitry.
Check IC10004 and the
peripheral circuitry.
peripheral circuitry.
Is the digital output section of IC10004
normal?
normal?
Check IC10426 and the
peripheral circuitry.
peripheral circuitry.
Check IC10004 and the
peripheral circuitry.
peripheral circuitry.
Is the digital output section of IC10426
normal?
normal?
Check IC10025 and the
peripheral circuitry.
peripheral circuitry.
Is the digital output from IC10025 normal?
Check IC10025 and the
peripheral circuitry.
peripheral circuitry.
Is the digital output from IC10025 normal?
YES
YES
YES
Is the input to pins (141), (126) and (136)
of IC10004 normal?
of IC10004 normal?
Is the digital output section of IC10004
normal?
normal?
NO
NO
NO
NO
NO
NO
YES
YES
YES
Is the input to pins (3), (2) and (1) of
IC10426 normal?
IC10426 normal?
Check CN10007 and the
peripheral circuitry.
peripheral circuitry.
Check the display side.
(AVC System)
(PC I/F Unit)
MAIN in one-screen mode or two-screen
mode
mode
SUB in two-screen mode
Is the signal applied to pins (21), (22),
(24), (25), (27), (28), (30) and (31) of
IC10413?
(24), (25), (27), (28), (30) and (31) of
IC10413?
Check the parts in the PC I/F unit.
In the case of TV, video and component system
In the case of PC system
Note: The Ref.
No. of the PC I/F unit is REF.1XXXX.
No. of the PC I/F unit is REF.1XXXX.
Check CN10008 and the
peripheral circuitry.
peripheral circuitry.
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