4. TROUBLE SHOOTING
- 57 -
4.7 Receiver Trouble
4.7 Receiver Trouble
Figure 4-20
R206
U201
R207 R209
7
.
4
p
9
3
p
9
3
VA
201
2
1
2
C
p
9
3
10
0K
R20
9
SP201
1
2
SP
200
VA
200
1
1
2
C
p
9
3
1
M
O
C
3
2
M
O
C
D
N
G
4
1
N
I
2
N
I
1
C
N
5
2
C
N
2
1
O
N
2
O
N
1
8
7
6
9
10
+
V
P
V
C
R
N
V
C
R
N
E
_
V
C
R
_
K
P
S
U201
MAX4684EUB
4.7
R206
R207
C207
C210
CN200
Replace the Main board.
ABB is out of order.
Re-soldering U201
START
Check the signal level of
RCVP & RCVN at R206, R207. Are
these voltage is about 1.2V?
Check the signal level at R209. Is
it almost 0?
Yes
No
No
Yes
Check the soldering
of U201
No
Yes
Check the contact state of dual
mode speaker.
Replace the dual mode speaker
The dual mode speaker will work
properly.
No
Check the soldering
R206 & R207
No
Yes
Re-soldering
R206, R207
Replace U201
Содержание G1610
Страница 1: ...Service Manual Model G1610 Service Manual G1610 P N MMBD0045701 Date February 2005 Issue 1 0 ...
Страница 52: ...4 TROUBLE SHOOTING 51 Graph 4 14DCS TX Graph 4 15EGSM TX VC1 VC2 VC1 VC2 VC1 VC2 VC1 VC2 ...
Страница 70: ...5 DISASSEMBLY INSTRUCTION 69 5 DISASSEMBLY INSTRUCTION Figure 5 1 Figure 5 2 ...
Страница 71: ...5 DISASSEMBLY INSTRUCTION 70 Figure 5 3 Figure 5 4 ...
Страница 72: ...5 DISASSEMBLY INSTRUCTION 71 Figure 5 5 ...
Страница 73: ...5 DISASSEMBLY INSTRUCTION 72 Figure 5 6 1 3 2 4 Figure 5 7 1 2 3 ...
Страница 74: ...5 DISASSEMBLY INSTRUCTION 73 Figure 5 8 4 2 3 1 2 1 Figure 5 9 ...
Страница 75: ...5 DISASSEMBLY INSTRUCTION 74 Figure 5 10 ...
Страница 82: ...6 DOWNLOAD AND CALIBRATION 81 11 Wait until Sending Block is completed 1 Wait Until Sending Block is completed ...
Страница 86: ...7 BLOCK DIAGRAM 85 7 BLOCK DIAGRAM Power supply ...
Страница 87: ... 86 ...
Страница 101: ...11 STAND ALONE TEST 100 11 2 Standalone Test Equipment Setup GSM Test Equipment Power Supply RS 232 Cable PC JIG Phone ...
Страница 108: ...12 AUTO CALIBRATION 107 12 3 Equipment Setup Figure 12 1 Equipment Setup ...
Страница 111: ...12 AUTO CALIBRATION 110 ...
Страница 113: ...13 EXPLODED VIEW REPLACEMENT PART LIST 112 ...