Samsung Wave GT-S8500, Service Manual, Page: 57 / 68

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Level 3 Repair
8-28
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Check C118
≤
-65dBm ?
8-3-17. WCDMA Band8 RX
CONTINUOUS RX ON
RF INPUT : 3013CH
AMP : -50dBm NORMAL CONDITION
catch the channel?
U302
{C314 = 2.2V ?}
& {C319 = 1.3V ?}
& {C360 = 2.3V ?}
& {C321 = 1.4V ?}
Check the Voltage at
C120 = 2.85V ?
Check component
soldering status OK at
L111, C141, C151 ?
CHECK soldered
CN100, C118, L102
U302, C341, C120
resolder or change
L111, C141, C151
resolder or change
U302
resolder or change
CHECK
C300
freq :19.2MHz ?
U300
change or resolder
NO
NO
YES
YES
YES
YES
YES
YES
F100 CHECK
pin26 or L121
≥
-65dBm
?
F100
resolder or change
YES
W900 Receiver is O.K?
NO
U302
resolder or change
END
F101 CHECK
pin6 or L110
≥
-65dBm ?
L121, L110
resolder or change
F101 CHECK
pin1,8
≥
-65dBm ?
F101
resolder or change
YES
YES
NO
NO
NO
NO
NO
NO
NO