Samsung GT-E2550 - Page 41

SAMSUNG Proprietary-Contents may change without notice
Flow Chart of Troubleshooting
9-9
This Document can not be used without Samsung's authorization
9-1-5.
Receiver/Speaker Part
There is no sound from the Receiver/Speaker
Is the terminal of
Receiver/Speaker O.K
?
No
Replace the Speaker
Yes
END
Yes
Is there any signals at the
Pin#
1
and Pin#
2
of
SPK_PAD
?
Is there any signals at the
Pin#
1
and Pin#
2
of
SPK_PAD
Yes
Check SPK_PAD
Check U306 PIN
5,
PIN
8
No
No
Is there any signals at the
Pin#1 and Pin#2 of
RCV_PAD
Is there any signals at the
E19,F19 of MODEM IC
Check RCV_PAD
No
Check UCP200
No
Yes
Yes
Yes