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Flow Chart of Troubleshooting
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9-35
9-17. PCS Receiver
R117,R118,R119,R120
>= 1V
Check UCP200
No
No
Yes
Yes
Yes
Yes
Resolder UPL102
Check & Resolder
UPL102, C109
RF26MHz, RF PSU Part
Check UPL102
pin23,26,28 >=2.7V
UPL102 pin7,8,9,10
>= 1V
END
No
No
No
Yes
Yes
Yes
Resolder L107, L108, C134
Resolder Module100
Check ANT Switch
control circuit
UPL102
pin32 >= -70dBm
pin33 >= -70dBm
Module100 pin3,pin4
>= -65dBm
Check Module100
pin10,pin12 = L
RX ON
RF input : 661CH
Amp : -50dBm
Yes
No
Resolder RFS101, C101
Module100 pin8
>= -65dBm
Summary of Contents for SGH-E500
Page 32: ...8 PCB Diagrams 8 1 8 1 Top ...
Page 33: ...PCB Diagrams 8 2 8 2 Bottom ...