![background image](http://html.mh-extra.com/html/samsung/gt-b7702/gt-b7702_service-manual_1192174055.webp)
SAMSUNG Proprietary-Contents may change without notice
Flow Chart of Troubleshooting
9-28
This Document can not be used without Samsung's authorization
9-15. DCS TX
1)Master
END
Change or Resolder
MOD100
Yes
MOD100 pin12
≥
25dBm
TX ON (0Level)
VBATT = H (3.6V),
BS1 = H (
≥
1.2V)
BS2 = H (
≥
1.2V)
MOD100 pin20
≥
-4 dBm
Check U200
Voltage path
Check Battery and
control circuit path
Yes
Check C130, L113,
C137
No
Yes
Yes
No
No
No
Yes
No
Resolder
RFS100,C117,L105
Change or Resolder
MOD100
Yes
Change or Resolder
components
C130, L113, C137
No
Check TCX200
19.2 MHz signal
No
Change or Resolder
TCX200
Yes
Check U200
Check and Resolder
C130, L113, C137
Yes
END