
Level 3 Repair
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Confidential and proprietary-the contents in this service guide subject to change without prior notice.
8-36
Check C1023
≤
-65dBm ?
8-3-16. GSM850/ WCDMA Band5 RX
CONTINUO
US RX ON
RF INPUT : 4408CH
AMP : -50dBm
NORMAL CONDITION
catch the channel?
Check the voltage at
{C1057 = VBAT_RF ?}
& {C1056 = 2.85V ?}
& {C1054 = 2.65V ?}
& {C1058 = 1.8V?}
& {C1059 = 1.2V?}
Check the Voltage at
C1014 = 2.85V ?
Check component
soldering status OK at
F1000
CHECK soldered
L1004,C1023,C1026,RFS1000
Resolder or change
U1000, C1014
Resolder or change
F1000
Resolder or change
U1004
Check the freq. at
OSC1000 PIN 1 or PIN
3 : 26MHz ?
Change or resolder
OSC1000
Check C1032
≥
-65dBm ?
Resolder or change
Check C1032
WCDMA Band5
/ GSM 850
Receiver is O.K?
Resolder or change
UCP3000
END
NO
YES
NO
NO
YES
NO
YES
NO
YES
NO
YES
NO
YES
NO
Check F1000 PIN 20, 21
≥
-65dBm
Resolder or change
F1000
NO
YES
Summary of Contents for GT-P5200
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