LG T710BH Service Manual - Page 13
Troubleshooting Guide
 |
View all LG T710BH manuals
Add to My Manuals
Save this manual to your list of manuals |
Page 13 highlights
TROUBLESHOOTING GUIDE 1. NO POWER NO POWER (POWER INDICATOR OFF) CHECK FUSE OK? YES CHECK C908 VOLTAGE? (AC120V: 160VDC, AC220V: 304VDC) YES CHECK Q901 PIN 6 WAVEFORM (SQUARE WAVE COMES OUT?) YES CHECK D941, D942, D951, D961, D971 VOLTAGE? YES TROUBLE IN Q903, Q952, Q951, Q942, Q941 NO TROUBLE IN FUSE (F901) NO TROUBLE IN D900 NO TROUBLE IN Q901 NO TROUBLE IN D941, D942, D951, D961, D971 - 13 -
-
1 -
2
-
3
-
4
-
5
-
6
-
7
-
8 -
9 -
10 -
11 -
12 -
13 -
14 -
15 -
16 -
17 -
18 -
19
-
20
-
21
-
22
-
23
-
24
-
25
-
26
-
27
-
28
-
29
-
30
-
31
-
32
-
33
-
34
-
35
-
36
-
37
 |
 |
TROUBLESHOOTING GUIDE
- 13 -
1. NO POWER
NO POWER
(POWER INDICATOR
OFF
)
TROUBLE IN
D900
TROUBLE IN FUSE
(F901)
TROUBLE IN
Q901
TROUBLE IN
D941, D942,
D951, D961, D971
TROUBLE IN
Q903, Q952,
Q951, Q942, Q941
CHECK
FUSE OK?
CHECK
C908 VOLTAGE?
(AC120V: 160VDC,
AC220V: 304VDC)
NO
YES
YES
YES
YES
NO
NO
NO
CHECK
Q901 PIN 6
WAVEFORM
(SQUARE WAVE
COMES
OUT?)
CHECK
D941, D942, D951,
D961, D971
VOLTAGE?