52
4. No display
Check the B/L
signal is available?
Replace main board
Replace the power board
Panel Vcc = 12V?
Replace the Panel
No display (LED white)
Replace the main board
Check the backlight is
“On”?
Check the LVDS cable
Reinsert or replace the
LVDS cable
Replace the main board
Replace the Panel
No
Yes
Yes
No
Yes
No
No
Yes
Yes
No
Yes
No
Power board output
=
24V?
Check TV is under control and power
on/off by remote control and power key?
Содержание LET32/40T900
Страница 5: ...5 2 Operating Instructions 2 1 The Use of Remote Control ...
Страница 6: ...6 2 2 To Use the Menus ...
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Страница 33: ...33 2 3 Front Panel Control Knobs ...
Страница 36: ...36 2 4 How to Connect ...
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Страница 42: ...42 4 Mechanical Instructions LET32T900 Step1 Remove the STAND BASE Step2 Remove the REAR COVER ...
Страница 43: ...43 Step3 Remove the BKT Step4 Separate the AC COVER and SHIELD ...
Страница 45: ...45 Step7 Remove the LED BAORD IR BOARD and KEY BOARD ...
Страница 46: ...46 LET40T900 Step1 Remove the STAND BASE Step2 Remove the REAR COVER ...
Страница 48: ...48 Step5 Remove the LED BAORD IR BOARD and KEY BOARD ...
Страница 56: ...56 6 PCB Layout 6 1 Main Board 715G4589M01000004K ...
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Страница 58: ...58 6 2 Power Board LET32T900 715G4500P01W30003S ...
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Страница 61: ...61 LET32T900 715G4654P01W21003M ...
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Страница 64: ...64 LET40T900 715G4581P01W30003H ...
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Страница 67: ...67 6 3 LED Board 715G4733T0C000004M 6 4 Key Board 715G4749K0D000004M 6 5 IR Board 715G4724R0C000004S ...