Speaker Part_1(Mp3, Speaker Phone) - Samsung SGH-D807 Service Manual

Flow Chart of Troubleshooting

11-1-5. Speaker Part_1(MP3, SPEAKER PHONE)

There is no sound from the Speaker
Is the terminal of Speaker
Are there any signals at
the L500, L501
No
Is there any signals
at the pin#12 and
pin#13 of UCD503 ?
②
The pin #5, #7
Check UCD503
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O.K ?
Yes
Yes
MP3
What is the type of
sound from the
Yes
No
of U500 is
"High"
Yes
Check
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No
Replace the Speaker
①
No
Check U501
SPEAKER PHONE
Speaker
Is there any signals
at C506, C512 ?
No The pin #5,
#7 of U500 is
④
UCP201
END
11-12
No
Yes
③
Check U101
"High"
Yes