LG KP260 - Receiver Trouble

4.14 Receiver Trouble
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4. TROUBLE SHOOTING
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TEST POINT
CIRCUIT
TP1
TP2
ENBY00405
DNI
C343
47p
VA304
R322 680
680R321
1u
34
42
43
44
45
46
47
48
49
50
30
31
32
33
3
4
5
6
7
8
9
35
36
37
38
39
40
4110
11
12
13
14
15
16
17
18
19
2
20
21
CN302
1
1u
C349
39p
39p
C348
47p
REC_N
KEY_COL4
LCD_RESET
MLED1
MLED2
MLED
REC_P
UKEY_ROW4
KEY_COL3
UKEY_ROW0
LCD_ID
RECEIVER
DNI
DNI
VA101
VA100
CN101
1
2
L100 1800
39p
C103
L101 1800
39p
C102
C101
39p
REC_P
REC_N
Figure 4.13
TP1
TP2