20
4. No display
Check the B/L
signal is available?
Replace main board
Replace the power board
Panel Vcc = 5V?
Replace the Panel
No display (LED blue)
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
=
43V?
Check TV is under control and power
on/off by remote control and power key?
Содержание LY19Z6
Страница 11: ...11 Step5 Unscrew the 11 screws as red circle to remove MAIN BD KEY COVER BKT and Side_I O BKT ...
Страница 12: ...12 Step6 Separate the BEZEL PANEL and KEY BD Disconnect the FFC CABLE The PANEL ...
Страница 15: ...15 Step5 Unscrew the 3 screws as red circle to remove BKT KEY BD and KEY COVER ...
Страница 16: ...16 Step6 Separate the BEZEL and PANEL ...
Страница 24: ...24 6 PCB Layout 6 1 Main Board 715G4035M0A001005F ...
Страница 25: ...25 ...
Страница 26: ...26 ...
Страница 27: ...27 ...
Страница 28: ...28 6 2 Power Board 715G4051P01000004S ...
Страница 29: ...29 LYF24Z6 715G4820P02000004S ...
Страница 30: ...30 6 3 Key Board 715G4251K01000004S 715G4168K02000004S ...
Страница 31: ...31 6 4 IR Board 715G4169R01001004S ...
Страница 43: ...43 8 Block Diagram ...