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Level 3 Repair
8-3-11. EGSM 850/900 TX
Check TCXO CLOCK
19.24MHz @ C210
YES
Check Power @ C137
3dBm?
YES
Check PAM101 VBAT
PIN #4
3.0V?
YES
Check PAM101 ENABLE
Pin#2
0V
Pin#3
2V
YES
Check PAM101 OUTPUT
Pin#9
30 dBm
YES
Check F100 INPUT POWER
Pin#13
30 dBm
YES
Check RFS100
C103
30dBm
YES
END
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NO
NO
re-solder or change
NO
NO
NO
re-solder or change
L114, C176, C177
NO
re-solder or change
NO
RFS100, C103,C112,C116
re-solder or change
8-24
Band : GSM850/900
CELL POWER : -50dBm
Tx Power : 5 Level
Channel : 160CH / 62CH
OSC100, C210
re-solder or change
U101, C137
Change PBA
Change PBA
PAM101
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