Samsung SGH-E570 Service Manual page 45

Flow Chart of Troubleshooting
3-2-4. EGSM TX
PAM600 Pin 12
About 32 dBm?
YES
F600 ,RFS601
R613,c601,L600
Check & Change
UCP201 Pin
A13,C213 Check &
BATTERY Check
NO
F600
Pin#4 = 2.8V?
PAM600
Pin#4 ,5 : VBAT?
NO
PAM600 pin #7
about 5dBm ?
PAM600
Pin #1 :2.9V ?
PAM600
Check & Change
UCD600
NO
Pin 34 : 2.9V ?
Pin 1,13,22,32
:VBAT ?
UCD600
Pin 21 : 26 MHz?
UCD600
Pin 35,36,37,38
100mV ?
UCD600
Check or change
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TX Power DAC : 600 code Applied
NO
Check & Change
YES
NO
YES
YES
NO
YES
UCP201
check
YES
NO
Check OSC600
YES
NO
YES
3-28
Continuous TX ON condition
CH : 62
RBW : 100KHz
VBW : 100KHz
SPAN : 10MHz
REF. Level : 10dBm
ATT. : 20dB
UCP201
BATTERY
Check & change
UCP201
Check or change