Samsung GT-I9500 Service Manual page 67
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
8-3-18. WCDMA BAND5 TX
F100 PIN 4 :
About 22dBm ?
Check F100 PIN 6
About 22dBm
Check the Voltage at
C166 = VBATT ?
Check component
soldering status OK at
Check F101 PIN 35
About 22dBm ?
Check U102 PIN 36
About 22dBm ?
Check U102 PIN 26
About 0dBm?
Check the freq. at
OSC100 PIN 4 : 26MHz ?
Check component
soldering status ok at
Band5 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
C142
YES
Resolder or change
U102
NO
Change or resolder
OSC100
NO
Resolder or change
U103
NO
Resolder or change
UCP300
8-35
CONTINUOUS TX ON CONDITION
TX POWER DAC: 23000 CODE
APPLIED
WCDMA Band5 CH : 4408
RBW : 100KHz
VBW : 100KHz
SPAN : 10MHz
REF LEV. : 10dBm
ATT. : 20dB
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