LG KG280 Service Manual - Page 50
TEST POINT, Waveform, Checking Flow, CIRCUIT
 |
View all LG KG280 manuals
Add to My Manuals
Save this manual to your list of manuals |
Page 50 highlights
4. TROUBLE SHOOTING (3) Checking PAM Control Signal TEST POINT CIRCUIT VAPC 20 VBATT 17 VCC1B 6 VCC1A 2 10V Over ECCH0000155 ECCH0000155 10V Over U600 C606 (PAM_EN) Figure 9 Waveform C650 (TX_RAMP) C605 C651 0.01u 0.01u GND9 16 GND8 14 13 GND7 12 GND6 GND5 15 DCS_PCS_OUT DCS_PCS_IN 3 11 EGSM_OUT 19 U600 RSVD_GND SKY77318 21 P_GND 4 EGSM_IN ENABLE 18 1 BS 10 GND4 9 8 GND3 7 GND2 GND1 5 R607 220 R611 180 R605 24 R612 30 R608 220 C608 33p C611 R613 10p 180 C606 27p R601 R602 C607 NA 100ohm 100ohm PA_EN PA_BAND Checking Flow Check TX_RAMP and PA_EN Check if there is Any Major Difference or not Refer to Graph 6 Graph 6 Similar? Yes No Redownload S/W Go to Next Step Copyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes - 51 - LGE Internal Use Only
-
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
-
38
-
39
-
40
-
41
-
42
-
43
-
44
-
45 -
46 -
47 -
48 -
49 -
50 -
51 -
52 -
53 -
54 -
55 -
56
-
57
-
58
-
59
-
60
-
61
-
62
-
63
-
64
-
65
-
66
-
67
-
68
-
69
-
70
-
71
-
72
-
73
-
74
-
75
-
76
-
77
-
78
-
79
-
80
-
81
-
82
-
83
-
84
-
85
-
86
-
87
-
88
-
89
-
90
-
91
-
92
-
93
-
94
-
95
-
96
-
97
-
98
-
99
-
100
-
101
-
102
-
103
-
104
-
105
-
106
-
107
-
108
-
109
-
110
-
111
-
112
-
113
-
114
-
115
-
116
-
117
-
118
-
119
-
120
-
121
-
122
-
123
-
124
-
125
-
126
-
127
-
128
-
129
-
130
-
131
-
132
-
133
-
134
-
135
-
136
-
137
-
138
 |
 |
