32
’’ LCD TV Envision L32W465
23
5. Repair Flow Chart
5.1 Abnormal display
CHECK CON901 PIN9
=
12V
CON905 PIN3=5V?
Check POWER BOARD
NG
OK
CHECK CN407 PANEL connect is
normal?
Reconnect CN407
NG
CHECK X401
、
X701 is normal?
Check surge circuit
CHECK U108 PIN18, PIN17, PIN14 output wave is OK;
PIN9 PIN20 power supply is OK?
CHECK U401 PIN R5
、
PIN T8=3.3V?
U401 PIN E6=2.5V? PIN R9=1.8V?
CHECK SCALER power
Check Tuner circuit
Check TV mode display is normal?
CHECK I²C1DATA, CLK is normal?
CHECK SCALER HS VS is normal?
OK
OK
OK
OK
OK
OK
NG
NG
OK
OK
Содержание Envision L32W465
Страница 4: ...32 LCD TV Envision L32W465 4 1 General Specifications ...
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Страница 7: ...32 LCD TV Envision L32W465 7 2 3 OSD Operations ...
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Страница 14: ...32 LCD TV Envision L32W465 14 2 4 How to Connect ...
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Страница 19: ...32 LCD TV Envision L32W465 19 Remove connector Remove shield Remove fifteen screws ...
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Страница 27: ...32 LCD TV Envision L32W465 27 7 PCB Layout 7 1 Main Board ...
Страница 28: ...32 LCD TV Envision L32W465 28 ...
Страница 29: ...32 LCD TV Envision L32W465 29 7 2 Power Board ...
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Страница 31: ...32 LCD TV Envision L32W465 31 7 3 Audio Board ...
Страница 32: ...32 LCD TV Envision L32W465 32 7 4 Key Board ...
Страница 33: ...32 LCD TV Envision L32W465 33 8 Block Diagram 8 1 Main board ...