
Level 3 Repair
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Confidential and proprietary-the contents in this service guide subject to change without prior notice.
8-54
U1000 PIN11 : About
30dBm ?
8-3-22. GSM1800/ GSM1900 TX
Check the Voltage at
C1014 = 2.85V ?
Check the Voltage at
C1049 = VOUT_CHARGER?
CHECK soldered
L1004, C1023, C1026, RFS1000
Resolder or change
U1000, C1014
Resolder or change
PAM1000, C1049
Check L1015, C1051 :
About 30dBm ?
Resolder or change
L1014, C1042
YES
NO
NO
YES
YES
NO
NO
YES
Check C1052 :
About 0dBm ?
Resolder or change
C1052
YES
YES
Check the voltage at
{C1057 = VBAT_RF ?}
& {C1056 = 2.85V ?}
& {C1054 = 2.65V ?}
& {C1058 = 1.8V?}
& {C1059 = 1.2V?}
Resolder or change
U1004
Check the freq. at
OSC1000 PIN 1 or PIN
3 : 26MHz ?
Change or resolder
OSC1000
GSM1800/1900
Transmitter is O.K?
Resolder or change
UCP3000
END
NO
YES
NO
YES
NO
CONTINOUS TX ON CONDITION
TX POWER DAC:14500 CODE
APPLIED
DCS CH : 685
PCS CH : 661
RBW : 100KHz
VBW : 100KHz
SPAN : 10MHz
REF LEV. : 10dBm
ATT. : 20dB
Summary of Contents for GT-P5200
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