26
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?
Summary of Contents for L42C1180
Page 7: ...7 2 2 To Use the Menus ...
Page 8: ...8 ...
Page 9: ...9 ...
Page 10: ...10 ...
Page 11: ...11 ...
Page 12: ...12 ...
Page 13: ...13 ...
Page 14: ...14 ...
Page 19: ...19 4 Mechanical Instructions Step1 Remove the REAR COVER and BASE Step2 Remove the BKT ...
Page 20: ...20 Step3 Remove the BKT Step4 Separate the INVERTER BOARD ...
Page 21: ...21 Step5 Remove the MAIN BOARD and POWER BOARD Step6 Separate the BEZEL and PANEL ...
Page 22: ...22 Step7 Remove the LED BAORD IR BOARD KEY BOARD and SPEAKERS ...
Page 30: ...30 6 PCB Layout 6 1 Main Board 715G3269M01001005K ...
Page 31: ...31 ...
Page 32: ...32 6 2 Power Board 715G3760P01W20003M ...
Page 33: ...33 ...
Page 34: ...34 ...
Page 35: ...35 715G3967P01000003S ...
Page 36: ...36 715G3966P01000003H ...
Page 37: ...37 6 3 LED Board 715G4252T02000004S 6 4 Key Board 715G4234K02000004S ...