No audio heard (2)
No HDMI sound heard.
No sound from the HDMI SOUND input terminal.
No HDMI sound heard (External input sound heard in UHF/VHF reception)
NO
YES
Refer to "<INPUT 4> in No external image onscreen (HDMI)".
Does the HDMI image appear onscreen?
Are there the SDO, WS, SCK, MCLKIN and MCLKOUT signals at pins (84), (85), (86), (87) and (88) of
IC1904 (HDCP SLI), respectively?
NO
YES
YES
Check IC1904 and its peripheral circuits.
NO
Check IC1905 and its peripheral circuits.
Is there the audio signal output at pins (10) and (11) of IC1905 (DAC)?
YES
Is there the L-ch audio signal input from pin (3) of external input terminal J1900 (HDMI SOUND IN) to
pin (3) of IC1906?
Is there the R-ch audio signal input from pin (2) of external input terminal J1900 (HDMI SOUND IN) to
pin (7) of IC1906?
NO
YES
Check the control signal at pin (2) of IC1906 and its peripheral circuits.
Are there the L-ch and R-ch audio signal outputs at pins (7) and (1) of IC2505 (AMP), respectively?
NO
YES
Check IC2505 and its peripheral circuits.
Are there the L-ch and R-ch audio signal inputs at pins (47) and (48) of IC2501, respectively?
YES
*A: Go back to "No audio heard (1)".
Are there the L-ch and R-ch audio signal outputs at pins (15) and (11) of IC1906 (SELECTOR), respectively?
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