DW
3
U
TROUBLESHOOTING FLOW CHARTS
57
No sound, abnormal sound
Cable/Air, Input 1/2/3/Front
HDMI
Are waveforms at
pin 83(L) and
pin 84(R) of I001
OK?
Cable/Air
Input 1/2/3/Front
Check Input terminal
Check IT06, IT07
or Main-Digital board
Check UT01 (Tuner)
Are waveforms at
pin 91/89/87/85(L) and
pin 92/90/88/86(R) of I001
OK?
Yes
Yes
Yes
No
No
No
Check I001
Are waveforms at
pin 9(SDA), 10(SCL) and
voltage at pin 2, 7, 18(+5V)
of UT01 OK?
No
Check Speaker
Are waveforms at
terminals of speaker
OK?
Yes
No
Check Main-Digital board
Yes
Are waveforms at
pin 1(L) and pin 4(R) of Q002
OK?
[Terminal PWB circuit trouble shooting]
Summary of Contents for P50H401/DW3
Page 64: ...DW3U 63 FINAL WIRING DIAGRAM TABLE OF CONTENTS ...
Page 76: ...FINAL ASSEMBLY GUIDE TABLE OF CONTENTS 75 DW3U ...
Page 77: ...FINAL ASSEMBLY GUIDE 76 DW3U ...
Page 78: ...FINAL ASSEMBLY GUIDE 77 DW3U ...
Page 79: ...FINAL ASSEMBLY GUIDE 78 DW3U ...
Page 80: ...FINAL ASSEMBLY GUIDE 79 DW3U ...
Page 81: ...FINAL ASSEMBLY GUIDE 80 DW3U ...
Page 82: ...FINAL ASSEMBLY GUIDE 81 DW3U ...
Page 83: ...FINAL ASSEMBLY GUIDE 82 DW3U ...
Page 84: ...FINAL ASSEMBLY GUIDE 83 DW3U ...
Page 97: ...BACK TO TABLE OF CONTENTS 96 PRINTED CIRCUIT BOARDS DW3 U TERMINAL PWB Component side DW3 U ...
Page 98: ...PRINTED CIRCUIT BOARDS DW3 U TERMINAL PWB Solder side DW3 U 97 ...
Page 99: ...PRINTED CIRCUIT BOARDS DW3 U SD PWB Component side DW3 U 98 ...
Page 100: ...PRINTED CIRCUIT BOARDS DW3 U SD PWB Solder side DW3 U 99 ...
Page 101: ...PRINTED CIRCUIT BOARDS DW3 U LED PWB DW3 U Component side 100 Solder side ...
Page 102: ...PRINTED CIRCUIT BOARDS DW3 U FILTER PWB Component side DW3 U 101 Component side ...
Page 103: ...PRINTED CIRCUIT BOARDS DW3 U FILTER PWB Solder side DW3 U 102 Solder side ...
Page 104: ...PRINTED CIRCUIT BOARDS DW3 U CONTROL PWB Component side DW3 U 103 ...
Page 105: ...PRINTED CIRCUIT BOARDS DW3 U CONTROL PWB Solder side DW3 U 104 ...
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