Yamaha R-V702 R-V502 User Manual Page 44

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SAMSUNG Proprietary-Contents may change without notice
SGH-E630 Flow Chart of Troubleshooting
This Document can not be used without Samsung's authorization
7-22
17. PCS Transmitter
U205 Pin13
>= 13dBm
Resolder CN201, C202
TX ON (5Level)
Check U205
pin10 = L, pin9=L
pin12 = H (2.68V)
U205 pin8
>= 13dBm
U201 pin17
>= 13dBm
osc401 pin5
>= 12dBm
U201 pin5
>= 15dBm
Change or Resolder U205
Check ANT Switch
control circuit
Resolder C1127
Resolder R207
U100 pin 6, 7, 8, 9
>= 500mV
Yes
Check U201
+VBATT, C212,
R204 OK?
Resolder or Change U201
Check +VBATT or PAM
control signal
No
No
No
No
No
No
No
No
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
END
Check U1102
Resolder U100
or Check pins related to U100
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