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7. Block Diagrams
7-
1
Si4210
LNA
LNA
LNA
LNA
DIG
IT
A
L
FIL
T
E
R
AN
ALOG IN
TERF
ACE
VCO + FREQUENCY
SYNTHESIZER
ф
DET
DCXO
0 / 90
DUAL
SAW FILTER
(GSM, DCS)
CPS
2
200
B
1
PGA
PGA
I
ADC
Q
ADC
PGA
PGA
Low-IF
Digital
PAM
EGSM Tx
DCS Tx
XOUT
AFC
Q
I
Crystal
DUAL ASM
(GSM, DCS)
EGSM Rx
DCS Rx
Antenna
Summary of Contents for SGH-C240
Page 36: ...Flow Chart of Troubleshooting 9 4 3 2 4 1 ...
Page 38: ...Flow Chart of Troubleshooting 9 6 1 2 2 ...
Page 40: ...Flow Chart of Troubleshooting 9 8 1 2 ...
Page 42: ...Flow Chart of Troubleshooting 9 10 1 ...
Page 45: ...Flow Chart of Troubleshooting 9 13 1 2 3 4 4 5 ...
Page 47: ...Flow Chart of Troubleshooting 9 15 1 2 3 4 4 5 ...
Page 48: ...Flow Chart of Troubleshooting 9 16 ...
Page 50: ...Flow Chart of Troubleshooting 9 18 1 2 3 2 ...