Samsung SGH-P408 Service Manual page 23

6. Speaker Part
There is no sound from Speaker
Is the term inal of Speaker
Are there any signals
Y es
The pin#4
of U400 is
No
C heck U400
O .K .?
Y es
at the C220,C227?
Y es
The type of sound
from the Speaker is
Y es
Is there any
signals
at the pin#5 and
No
Y es
C heck U401
SAMSUNG Proprietary-Contents may change without notice
This Document can not be used without Samsung's authorization
SG H- P408 F low Chart of Troubleshooting
No
No
C heck LC D or R eplace CN200
M elody
Is there any signals
at the pin#2 and
pin#10 of U400?
No
Y es
END
3- 11
R eplace the Speaker
No
Y es
The pin#4
of U400 is
No
C heck U700