37’’ LCD TV Envision L37W431
29
4. No sound
OK
NG
Check SIF signal
Check TV system setup
OK
Check TU100
Replace TU100
Check AV1
、
AV2
、
component signal
Check U601
NG
Replace U601
OK
Check U502
NG
Replace U502
OK
Check U503
NG
Replace U503
Check Earphone jack
NG
Replace the Earphone jack
OK
Check speaker
NG
Replace speaker
Check the source
OK
NG
Check signal filter circuit
NG
Replace the filter capacitance or inductance
Reset source
NG
NG
NG
Check U100
Check HDMI signal
NG
Check CS4344
NG
Replace CS4344
Check U100
Summary of Contents for envision L37W431
Page 4: ...37 LCD TV Envision L37W431 4 1 General Specification ...
Page 5: ...37 LCD TV Envision L37W431 5 ...
Page 6: ...37 LCD TV Envision L37W431 6 2 Operations Instructions 2 1 The Use Of Remote Control ...
Page 7: ...37 LCD TV Envision L37W431 7 2 2 Front Panel Control Knobs ...
Page 8: ...37 LCD TV Envision L37W431 8 2 3 OSD Operations ...
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Page 16: ...37 LCD TV Envision L37W431 16 2 4 How To Connect ...
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Page 31: ...37 LCD TV Envision L37W431 31 7 PCB Layout 7 1 Main Board 715T1814 1 ...
Page 32: ...37 LCD TV Envision L37W431 32 ...
Page 33: ...37 LCD TV Envision L37W431 33 ...
Page 34: ...37 LCD TV Envision L37W431 34 7 2 Power Board 715T1852 3 ...
Page 35: ...37 LCD TV Envision L37W431 35 ...
Page 36: ...37 LCD TV Envision L37W431 36 ...
Page 37: ...37 LCD TV Envision L37W431 37 7 3 Audio Board 715T1635 3 ...
Page 38: ...37 LCD TV Envision L37W431 38 7 4 Tuner Board 715T2275 1 ...
Page 39: ...37 LCD TV Envision L37W431 39 7 5 Key Board 715T1886 1 7 6 IR Board 715T1836 1 3 ...
Page 58: ...37 LCD TV Envision L37W431 58 10 Exploded View ...