2008-03-14
LC-32A28L, LC-42A48L
37
The sound is not emitted from the speaker though the picture has come out.
↓
No sound output in all modes?
TEREMINAL UNIT:
↓
↓
YES
↓
YES
↓
YES
↓
YES
No sound (during the reception of TV(ANALOG) broadcasting)
↓
Does not the sound go out though the picture has come out when UHF/VHF is received?
MAIN UNIT:
↓
↓
YES
↓
YES
Is the audio signal output of pin (117) (AOSDATA0), pin (118)
(AOBCK), pin (119) (AOLRCK) and pin (120) (AOMCLK) of IC
U401 normal?
NO
Check IC U401 and its peripheral circuits.
Is audio signal input to pin (12) (AOSDATA0), pin (16) (AOBCLK),
pin (15) (AOLRCK) and pin (4) (AOMCLK) of IC U602 (AMP)?
Check the line between IC U401 and IC U602.
Is MUTE circuit [MUTE_ AMP_LINE, AMP_PD_LINE] normal?
Is the audio signal output of pin (3, 4) (L-ch) and pin (1, 2) (R-ch) of
CN602 (AOUDIO-CONNECTOR) normal?
NO
Check the MUTE_ AMP_LINE, AMP_PD_LINE. (Q605, etc.)
NO
Check IC U602 and its peripheral circuits.
Check Speaker Box (right and left) and wire harness.
Is the DIF signal output from pin (10) and pin (11) of TUNER
(TU102)?
NO
Check the tuner and its peripheral circuits. Replace as required.
Refer to
“
No sound output in all modes
”
.
Is the DIF signal sent to pin (85) and pin (86) of IC U401?
NO
Check IC U401 its peripheral circuits.
NO
Содержание LC-32A28L
Страница 6: ...LC 32A28L LC 42A48L 6 TV Front view TV Rear view ...
Страница 12: ...LC 32A28L LC 42A48L 12 3 DIMENSIONS Dimension for 32 ...
Страница 13: ...2008 03 14 LC 32A28L LC 42A48L 13 Dimension for 42 ...
Страница 62: ...LC 32A28L LC 42A48L 62 MAIN UNIT Side B ...
Страница 63: ...2008 03 14 LC 32A28L LC 42A48L 63 2 POWER UNIT PRINTED WIRING BOARD 32 POWER UNIT Side A ...
Страница 64: ...LC 32A28L LC 42A48L 64 32 POWER UNIT Side B ...
Страница 65: ...2008 03 14 LC 32A28L LC 42A48L 65 42 POWER UNIT Side A ...
Страница 66: ...LC 32A28L LC 42A48L 66 42 POWER UNIT Side B ...
Страница 67: ...2008 03 14 LC 32A28L LC 42A48L 67 3 KEY UNIT PRINTED WIRING BOARD KEY UNIT Side A KEY UNIT Side B ...
Страница 68: ...LC 32A28L LC 42A48L 68 4 IR UNIT PRINTED WIRING BOARD IR UNIT Side A IR UNIT Side B ...
Страница 109: ...2008 03 14 LC 32A28L LC 42A48L 109 2 CABINET PARTS LC 32A28L ...
Страница 111: ...2008 03 14 LC 32A28L LC 42A48L 111 CABINET PARTS LC 42A48L ...
Страница 113: ...2008 03 14 LC 32A28L LC 42A48L 113 3 SUPPLIED ACCESSOORIES ...
Страница 114: ...LC 32A28L LC 42A48L 114 4 32 PACKING PARTS ...
Страница 116: ...LC 32A28L LC 42A48L 116 42 PACKING PARTS ...