Samsung GT-I9500 Service Manual page 61
Gsm telephone
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Also See for GT-I9500:
- User manual (147 pages) ,
- Service manual (108 pages) ,
- Quick start manual (35 pages)
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Level 3 Repair
8-3-15. DCS/PCS TX
F100 PIN 4 :
About 30dBm ?
Check F100 PIN 6
About 30dBm
Check the Voltage at
C166 = VBATT ?
Check component
soldering status OK at
Check F101 PIN 10
About 30dBm ?
Check U102 PIN 9
About 30dBm ?
Check U102 PIN 24
About 10dBm?
Check the freq. at
OSC100 PIN 4 : 26MHz ?
Check component
soldering status ok at
DCS/PCS Transmitter is O.K?
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YES
NO
NO
YES
F101
YES
YES
NO
YES
NO
NO
YES
U103
YES
END
CHECK soldered
- RFS100, L111, C136
YES
Resolder or change
F100
NO
Resolder or change
C166, L119
NO
Resolder or change
F101
Resolder or change
F101
Resolder or change
C154, L118
YES
Resolder or change
U102
NO
Change or resolder
OSC100
NO
Resolder or change
U103
NO
Resolder or change
U300
8-29
CONTINUOUS TX ON CONDITION
TX POWER IDX1 APPLIED
DCS CH : 685
PCS CH : 661
RBW : 100KHz
VBW : 100KHz
SPAN : 10MHz
REF LEV. : 10dBm
ATT. : 20dB
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