25
3. No Display (LED Indicator Green)
Check 12V
power supply
Check Panel
NG
Replace Panel
Check back light is OK
OK
Check LVDS cable
and connector
OK
Check U401
NG
Replace U401
OK
Check U400
NG
Replace U400
NG
NG
OK
Check BL-ON/OFF signal
Check PS
signal
OK
OK
Check power
board
NG
NG
NG
Check Q151
Replace Q151
Содержание L19WA91
Страница 4: ...4 1 General Specification ...
Страница 5: ...5 2 Operating Instructions 2 1 The Use of Remote Control ...
Страница 13: ...13 2 3 How to Connect ...
Страница 14: ...14 ...
Страница 15: ...15 2 4 Front Panel Control Knobs ...
Страница 20: ...20 3 Release connectors L19WA91 L22WA91 ...
Страница 21: ...21 4 Remove hinge BKT L19WA91 L22WA91 ...
Страница 22: ...22 5 Remove the screws to remove the main board and power board 6 Remove speakers ...
Страница 23: ...23 7 Remove panel 8 Remove key board and IR board ...
Страница 29: ...29 6 PCB Layout 6 1 Main Board 715G3292 1 ...
Страница 30: ...30 ...
Страница 31: ...31 6 2 Power Board 715G3414 1 ...
Страница 32: ...32 6 3 Key Board 715G3375 1 ...
Страница 33: ...33 6 4 IR Board 715G3392 1 ...
Страница 35: ...35 8 Block Diagram ...
Страница 54: ...54 10 Exploded View L19WA91 ...
Страница 55: ...55 L22WA91 ...
Страница 121: ...121 705TQ949001 COMSUPTIVE ASS Y A4 ...