Umts Receiver - Samsung SGH-Z130 Service Manual

Umts telephone
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SGH-Z130 Flow Chart of Troubleshooting and Circuit Diagrams

2-2-5. UMTS Receiver

Continuous RX ON
RF Input : 10700 CH
AMP : -40dBm
NORMAL CONDITION
Catch the channel ?
YES
CON800 Check
Pin #3 ≥ -45dBm ?
YES
U801 Check
Pin #9 ≥ -45dBm ?
YES
F700 Check
Pin #3 ≥ -45dBm ?
YES
U702 Check
Pin#11 ≥ -65dBm ?
YES
F703 check
pin#3,4 ≥ -65dBm ?
U701 check
pin#6,8 ≥ -65dBm
THE END
This Document can not be used without Samsung's authorization
NO
NO
NO
NO
NO
NO
YES
NO
YES
SAMSUNG Proprietary-Contents may change without notice
Check antenna contack
CON800
Resolder or Change
U801 Resolder or Change
F700 Resolder or
change
U702 Resolder or
change
F703 Resolder or change
Change the path of F703
and U701
2- 24

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