Gsm850 Transmitter - Samsung GT-i8000 Service Manual

9-9. GSM850 Transmitter

(PCL 5 level)
Cell Power : -40dBm
Normal Condition Catch the
F200 Pin 11
U205 Pin 55
Check U205 & UCP500
TX ON
channel
F200 Pin 2
>= 5dBm
No
Yes
>= 5dBm
No
>= 5dBm
No
END
SAMSUNG Proprietary-Contents may change without notice
This Document can not be used without Samsung's authorization
Yes
Resolder RFS200, C200, L201, R221,
Check F200
Truth Table
Pin 3 : HIGH
Pin 4 : LOW
Pin 5 : LOW
Pin 6: LOW
YES
Yes
Resolder or change C220
9-21
Flow Chart of Troubleshooting
,R220
Resolder or change F200