Yamaha R-V702 R-V502 User Manual Page 35

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  • TROUBLESHOOTING
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SAMSUNG Proprietary-Contents may change without notice
Flow Chart of Troubleshooting
This Document can not be used without Samsung's authorization
7-11
7-7. EGSM Reciever
F101 CHECK
pin#9 -65dBm ?
CONTINUOUS RX ON
RF INPUT : 62CH
AMP : -50dBm
NORMAL CONDITION
catch the channel?
U102 CHECK
pin#31 : 26MHz ?
Vp-p : 860mV?
F101 CHECK
pin#11 -65dBm ?
U102 CHECK
pin#21,22 -65dBm ?
Check soldered status of
C103 C133, L109
CN100
resolder or change
F101, C120, L106
resolder or change
C124,C142,L107
resolder or change
UX101 CHECK
clean 3V?
CHECK
U300
YES
NO
NO
NO
NO
NO
NO
YES
YES
YES
YES
UX101 CHECK
26MHz ?
Vp-p : 950mV?
UX101
Resolder or
Change?
YES
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