Gsm Transmitter; Control Signal - Samsung SGH-X600 Service Manual
Gsm telephone
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Also See for SGH-X600:
- Quick reference card (2 pages) ,
- Manual (101 pages) ,
- Service manual (44 pages)
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13. GSM Transmitter
TXO N (5L evel)
Y es
U 102 Pin10
>= 20dBm
N o
U 102 pin3
>= 20dBm
N o
U 101 pin9
>= 20dBm
N o
U 101 pin7
>= -11dBm
N o
O SC 100 pin1
>= -8dBm
N o
U 103 pin6, 7, 8, 9
>= 1V
N o
R 134, R 135, R 136,
R 137 >= 500m V
N o
C heck U 200
E N D
Y es
R esolder C N 101, C 101
Y es
Y es
R esolder C 190, L 113
Y es
Y es
R esolder R 110, R 111, R 112
Y es
R 130,R 131,C 143,C 144,C 146
Y es
SAMSUNG Proprietary-Contents may change without notice
This Document can not be used without Samsung's authorization
SG H- X600 F low Chart of Troubleshooting
C heck U 102
pin7 = H(2.68V ),
pin4 = L
N o
C heck U 101
+V BA TT, pin4, 7
O K ?
N o
C heck &R esolder
O SC 100
C heck U 103
pin4, 22 >= 2.7V
7- 3
Y es
C hange or R esolder U 102
C heck A N T Switch
control circuit
Y es
R esolder or C hange U 101
C heck +V BA TT or PA M
control signal
Y es
R esolder U 103
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