Sharp LC-C4655U - AQUOS Liquid Crystal Television Service Manual download pdf (Page 66)

LC-30HV4U

LC-30HV4D

YES

No TV, video and component picture

Is input at pins (124),

(133) and (139) of

IC10004 normal?

Check CN10006 and

its peripheral circuits.

YES

Are pins (63)/(50)/(31) of

IC10310 (TL10207, TL10208

and TL10211) normal?

Check CN10006 and its

peripheral circuits.

YES

Is digital output section of

IC10004 normal?

Check IC10004 and

its peripheral circuits.

YES

Is digital output section

of IC10310 normal?

Check IC10310 and its

peripheral circuits.

YES

Is digital output of

IC10025 normal?

Check IC10025 and

its peripheral circuits.

No PC picture

YES

Is signal at pins (21), (22), (24), (25), (27), (28), (30) and (31)

of IC10413? (The signal is of high frequency (a little less

than 1GHz). Pay due attention to it during observation.)

Check the Display. Check the PC I/F unit.

No MAIN picture on single screen and dual screen.

No SUB picture on dual screen

YES

Is input at pins (126),

(136) and (141) of

IC10004 normal?

Check CN10008 and its

peripheral circuits.

YES

Is digital output section

of IC10004 normal?

Check IC10004 and its

peripheral circuits.

YES

Is digital output of

IC10025 normal?

Check IC10025 and its

peripheral circuits.

No image (6)

•AVC System (PC I/F unit)

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Sharp LC-C4655U - AQUOS Liquid Crystal Television Service Manual Page 66

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