Samsung GT-I9500 Service Manual page 63
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
8-3-16. WCDMA BAND1 TX
F100 PIN 4 :
About 22dBm ?
Check F100 PIN 6
About 22 dBm
Check the Voltage at
C166 = VBATT ?
Check component
soldering status OK at
Check F101 PIN 7
About 22 dBm ?
Check U102 PIN 13
About 22dBm ?
Check U102 PIN 24
About 0dBm?
Check the freq. at
OSC100 PIN 4 : 26MHz ?
Check component
soldering status ok at
Band1 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
C114, C140
YES
Resolder or change
U102
NO
Change or resolder
OSC100
NO
Resolder or change
U103
NO
Resolder or change
UCP300
8-31
CONTINUOUS TX ON CONDITION
TX POWER DAC:14500 CODE
APPLIED
WCDMA Band1 CH : 20000
RBW : 100KHz
VBW : 100KHz
SPAN : 10MHz
REF LEV. : 10dBm
ATT. : 20dB
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