Samsung SGH-E200 Service Manual - Page 52
GSM Receiver
View all Samsung SGH-E200 manuals
Add to My Manuals
Save this manual to your list of manuals |
Page 52 highlights
Flow Chart of Troubleshooting 9-12. GSM Receiver RX ON RF input : 62CH center freq : 947.4MHz Amp : -50dBm Yes F100 Pin13 >= -65dBm No Resolder RFS100, C103, L106 Yes F100 pin1,2 >= -68dBm Yes U101 pin 24 >= -70dBm pin 25 >= -70dBm No Check F100 pin9,pin11 = L Yes No Resolder C108, C109, L105 Yes No U101 pin 4,5,6,7 >= 1V Yes Check UCP200 U101 pin 11,12 16,17,32,33>=2.8V Yes No Check ANT Switch control circuit Resolder F100 No Check U101, OSC100 RF26MHz, RF PSU Part Resolder U101 END 9-20 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization
SAMSUNG Proprietary-Contents may change without notice
This Document can not be used without Samsung's authorization
Flow Chart of Troubleshooting
9-20
9-12. GSM Receiver
RX ON
RF input : 62CH center freq : 947.4MHz
Amp : -50dBm
Yes
F100 Pin13
>= -65dBm
No
Resolder RFS100, C103, L106
Yes
Check ANT Switch
control circuit
F100 pin1,2
>= -68dBm
Check F100
pin9,pin11 = L
No
No
Yes
Yes
Resolder F100
No
Resolder C108, C109, L105
U101
pin 24 >= -70dBm
pin 25 >= -70dBm
Yes
No
U101 pin 11,12
16,17,32,33>=2.8V
U101 pin 4,5,6,7
>= 1V
No
Check
U101, OSC100
RF26MHz, RF PSU Part
Yes
Yes
Resolder U101
Check UCP200
END