![background image](http://html.mh-extra.com/html/samsung/galaxy-s-ii-gt-i9100/galaxy-s-ii-gt-i9100_service-manual_339933071.webp)
SAMSUNG Proprietary-Contents may change without notice
Level 3 Repair
8-45
This Document can not be used without Samsung's authorization
Check C107
≤
-65dBm ?
8-3-16. WCDMA Band8 / GSM900 RX
NORMAL CONDITION
catch the channel?
Check the voltage at
{C138 = VOUT_CHARGER ?}
& {C169, C170, C171
= VOUT_CHARGER?}
& {C137, C174 = 2.85V ?}
& {C134, C176 = 2.65V ?}
& {C136, C178 = 1.8V?}
& {C135, C175, C173 = 1.2V?}
Check the Voltage at
C102 =VOUT_CHARGER
Check component
soldering status OK at
F100
CHECK soldered
RFS100, L107,C107,L108
Resolder or change
U101, C102
Resolder or change
F100
Resolder or change
U104
Check the freq. at C123
: 26MHz ?
Change or resolder
OSC100
Check L104, L105
≥
-65dBm ?
Resolder or change
L104, L105
WCDMA band8/GSM900
Receiver is O.K?
Resolder or change
UCP300
END
NO
YES
NO
NO
YES
NO
YES
NO
YES
NO
YES
NO
YES
NO
Check F100 PIN 22, 23
≥
-65dBm
Resolder or change
F100
NO
YES
CONTINUOUS RX ON
RF INPUT : 3013CH
AMP : -50dBm
Summary of Contents for Galaxy S II GT-I9100
Page 104: ...www s manuals com ...