Samsung SGH-T439 Service Manual page 36

Gsm telephone
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9-2. Initial
UCP200 pin C11 (RSTON) ="H"?
UCP200 pin F1(TP315)
(RSTEXTn) ="H"?
Check the 16bit data signal
Initial Failure
Yes
Yes
OK?
Yes
& memory CE
Yes
END
SAMSUNG Proprietary-Contents may change without notice
This Document can not be used without Samsung's authorization
No
Check the circuit related to reset
No
9-3
Flow Chart of Troubleshooting
change UCP200

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