VC-H992U
VC-H992U(A)
49
Linear audio playback is impossible. (Hi-Fi E-E mode is normal).
Are MH-AA harness and playback AMP. peripheral parts normal?
Is the AC head surface clean?
Is AC head height adjusted properly?
Replace the AC head.
Readjust the A/C head height.
Is audio signal output to the pin(11) of IC201?
YES
YES
YES
YES
YES
YES
NO
NO
NO
NO
Is it possible to confirm the audio signal (PB EQ)
on the pin(100) of IC201?
Replace IC201.
Is the pin(99) of IC201 in "L" level?
Check the line between the pin(11) of IC201 to
the pin(62) of IC651.
FLOW CHART NO.27
Check the periphery of pin(99) of IC201. (R617)
Summary of Contents for VC-H992U
Page 5: ...5 VC H992U VC H992U A 1 3 LOCATION OF MAJOR COMPONENTS AND CONTROL ...
Page 50: ...VC H992U VC H992U A 50 8 BLOCK DIAGRAM SYSTEM SERVO BLOCK DIAGRAM ...
Page 51: ...VC H992U VC H992U A 51 ...
Page 52: ...VC H992U VC H992U A 52 SIGNAL FLOW BLOCK DIAGRAM ...
Page 54: ...VC H992U VC H992U A 54 POWER CIRCUIT BLOCK DIAGRAM ...
Page 57: ...VC H992U VC H992U A 57 7 8 9 10 11 12 13 ...
Page 59: ...VC H992U VC H992U A 59 7 8 9 10 11 12 13 ...
Page 61: ...VC H992U VC H992U A 61 7 8 9 10 11 12 13 ...
Page 63: ...VC H992U VC H992U A 63 7 8 9 10 11 12 13 ...
Page 65: ...VC H992U VC H992U A 65 PWB FOIL PATTERN OPERATION PWB A B C D E F G H 1 2 3 4 5 6 7 ...
Page 66: ...VC H992U VC H992U A 66 A B C D E F G H 1 2 3 4 5 6 7 MAIN PWB ...