22
″ LCD
TV
TCL L22E75BK
5.3 No display (LED indicator green)
25
Check the transistor
Check F902=12V
NG
OK
Check F902/ZD920/F904/D906/C918
Check ON/OFF signal
Check Interface board or main board
NG
OK
Check IC801 PIN5=5V
NG
OK
Change on/off circuit
Q802/Q803/Q804/ZD803
Check IC801 PIN11/PIN12/PIN19/PIN20 have PWM
wave
NG
OK
Change IC801
Check Q801/Q805/Q811/Q812 have PWM wave
NG
OK
Check the output of PT801, PT802
NG
Check connecter & lamp
Change PT801, PT802
OK
Содержание L22E75BK
Страница 7: ...22 LCD TV TCL L22E75BK Weight net Kg w o Accessories 6 3 Kg 7...
Страница 30: ...22 LCD TV TCL L22E75BK 7 PCB Layout 7 1 Main Board 715T2509 2 30...
Страница 31: ...22 LCD TV TCL L22E75BK 31...
Страница 32: ...22 LCD TV TCL L22E75BK 7 2 Power Board 715T2210 1 AO 32...
Страница 33: ...22 LCD TV TCL L22E75BK 33...
Страница 34: ...22 LCD TV TCL L22E75BK 7 3 IR Board 715T2499 1 34...
Страница 35: ...22 LCD TV TCL L22E75BK 7 4 Key Board 715T2501 1 35...
Страница 36: ...22 LCD TV TCL L22E75BK 8 Block Diagram 36...
Страница 47: ...22 LCD TV TCL L22E75BK 10 Exploded View 47...