-97-
Troubleshooting
●
No Sound
Check TV audio signal circuit.
TV SIF signal is output from pin 16 of A101(analog tuner) and sent to
IC5001(MTS decoder), MTS signal is decoded in IC5001, and sent to
IC5101.
--> Check TUNER, IC5001 and peripheral circuit.
Check audio amp.and control circuit.
--> Check 16VA power supply line.
-->
Check IC001(audio-amp), IC5101 and peripheral circuit.
MUTE signal is applied on pin 6 of IC001 from pin 58 of IC801.
--> Check MUTE signal (Mute:H).
Is the audio signal
observed at pins 12 and
8 of IC001?
Check audio output circuit.
-->
Check speaker, connection of the terminal “K01R/K01L”.
Yes
No
Yes
Check AV audio signal circuit.
AV audio signals are selected in IC5101(AV1 is in IC5001).
--> Check IC5101 and peripheral circuit.
Yes
Check following steps.
Check audio signal selecting circuit.
All of the audio input signals are selected in IC5101(audio control).
-->
Check IC5101 and peripheral circuit.
Is the audio signal
observed at pins 14 and
25 of IC5101?
Yes
No
No sound with TV input
source
No sound with all of
input sources
No
No sound with AV input
source
Check HDMI and Digital-TV audio signal circuit.
These
audio signals are output from IC5500 and sent to IC5101 via
IC6300(amp.).
--> Check IC5500, IC6300 and peripheral circuit.
Note: When using DVI-HDMI cable, HDMI input has no digital audio signal,
Video3 audio input is selected automatically.
Yes
No sound with HDMI
and DIGITAL-TV input
source
No
Yes
Check AUDIO-OUT audio signal circuit.
--> Check 9V or 8.7VA power supply line.
AUDIO-OUT signals are output from pins 11 and 28 of IC5101.
-->
Check IC5101 and peripheral circuit.
Yes
Check woofer audio amp. circuit.
--> Check 9V or 8.7VA power supply line.
Woofer signal is output from pin 1 of IC5101, and sent to IC5181
(Woofer amp.). Woofer output level is controlled with user menu.
-->
Check IC5181 and peripheral circuit.
No WOOFER output
Yes
No AUDIO-OUT output
No
Содержание PLV-55WHD1
Страница 101: ... 101 IC Block Diagrams CAS 220 TS Demodulator IC6100 CXA2234Q MTS Decoder IC5001 ...
Страница 104: ... 104 L3E06150 LCD Driver IC501 IC1501 IC2501 NJW1180 Audio Processor IC5101 IC Block Diagrams ...
Страница 105: ... 105 IC Block Diagrams STR Z2156A Switching Power IC651 STR A6159 Switching Regulator IC641 ...
Страница 107: ...A Cabinet back Unit 107 Mechanical and Optical parts list 8 28 30 29 31 3 S1x16 Fig PL02 a Fig PL02 b ...
Страница 108: ... 108 Mechanical and Optical parts list B Cabinet front Unit 27 25 26 27 2 7 45 S1 S1 S1 S1 Fig PL03 a Fig PL03 b ...
Страница 114: ... 114 Mechanical and Optical parts list M Duct Main unit 53 52 59 110 118 Fig PL14 a Fig PL14 b ...
Страница 119: ... 119 Mechanical and Optical parts list Optical base unit 92 91 96 96x4 89 107 106 Fig PL22 ...
Страница 158: ... 158 MEMO ...
Страница 159: ... 159 MEMO ...
Страница 160: ... PLV 55 65WHD1 OCT 2006 DC 130 Printed in Japan SANYO Electric Co Ltd ...