![background image](http://html.mh-extra.com/html/samsung/gt-i5800/gt-i5800_service-manual_1192447053.webp)
SAMSUNG Proprietary-Contents may change without notice
Level 3 Repair
8-35
This Document can not be used without Samsung's authorization
Check C100
≤
-65dBm ?
8-3-18. GSM900 RX
YES
NO
YES
NO
YES
NO
YES
NO
YES
NO
YES
NO
YES
NO
YES
NO
NO
YES
NO
F100
resolder or change
F100 CHECK
pin1,8 or L113
≥
-
65dBm ?
C127, L111
resolder or change
F100 CHECK
pin6 or L111
≥
-65dBm ?
END
U300
resolder or change
GSM900 Receiver is O.K?
FEM100
resolder or change
Check both pad of C127
≥
-65dBm ?
OSC301
change or resolder
Check the freq. at C303
:19.2MHz ?
U300
resolder or change
L113, C129, C136
resolder or change
U300, C339, C102
resolder or change
CHECK soldered
RFS100, C100, L101
Check component
soldering status OK at
L113, C129, C136 ?
Check the Voltage at
C102 = 2.85V ?
U300
{C309 = 2.2V ?}
& {C316 = 1.3V ?}
& {C318 = 2.3V ?}
& {C320 = 1.4V ?}
NORMAL CONDITION
catch the channel?
CONTINUOUS RX ON
RF INPUT : 37CH
AMP : -50dBm
Summary of Contents for GT-I5800
Page 79: ...www s manuals com ...