Name: Sharp LC-52SB57U
Brand: Sharp
Rating: 4 (1 reviews)

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LC-46SB57U/LC-52SB57U

6 – 14

No monitor audio output

Is the audio output from the monitor set at “VARIABLE” or “FIXED” on the menu screen?

YES

Check IC8001 (CPU) and its peripheral circuits.

Are there the audio signal outputs at pins (N27) (PGA1OUT_L) and (N28) (PGA1OUT_R) of IC8001 (CPU)?

YES

Check IC8001 (CPU) and its peripheral circuits.

Does the audio signal come from pins (N27) (PGA1OUT_L) and (N28) (PGA1OUT_R) of IC8001 to pins (4) (L) and (2) (R) of J505?

YES

Check the line between IC8001 and J505 and their peripheral circuits.

Check the LINE_MUTE line and its peripheral circuits (Q1310/Q1311, etc.).

Check the connector (J505) and their peripheral circuits, and speakers and the Cable.

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