4
2
SYMPTOM: NO PICTURE/LED IS BLUE ABNORMAL
SYMPTOM: NO TV PICTURE ABNORMAL
No TV Picture
Replace Main PCB
Yes
No
Check if voltage
of U44 pin7 is 5V
Replace U44
No Picture / LED is blue
Yes
No
Check if
backlight
is normal
Check if voltage of power
PCB CN3 pin 12 is normal
No
Replace LCD panel
Yes
Replace Main PCB
Yes
Yes
No
No
Check if connector
of CN11,CN12,
CN13 is normal
Replace CN11
Replace LCD panel
Check if signal of
LVDS is normal
Содержание L42X02A
Страница 5: ...5 PRODUCT SPECIFICATIONS 1 97 5 27 1 21 7 PAL SECAM NTSC3 58 NTSC4 43 PAL M PAL N PAL 60 ...
Страница 7: ...7 Remote Control 1 2 3 4 5 6 7 8 9 10 11 12 13 14 1 2 3 4 5 6 7 8 9 10 11 12 13 14 ...
Страница 8: ...8 15 16 17 18 19 20 21 22 23 24 25 16 17 19 22 24 18 23 25 21 15 20 ...
Страница 12: ...FUNCTION BUTTON BOARD DIAGRAM 12 PCB DIAGRAMS RMC BOARD DIAGRAM AV BOARD DIAGRAM ...
Страница 13: ...LED BOARD DIAGRAM 13 SWITCH BOARD DIAGRAM ...
Страница 14: ...MAIN BOARD DIAGRAM TOP 14 ...
Страница 15: ...MAIN BOARD DIAGRAM BOTTOM 15 ...
Страница 64: ...Copyright Digital Media Systems Group 2008 All rights reserved L42X02A SC No 0029E ...