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Flow Chart of Troubleshooting
11-12
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11-1-5. Speaker Part_1(MP3, SPEAKER PHONE)
There is no sound from the Speaker
Is the terminal of Speaker
O.K ?
No
Replace the Speaker
Yes
Are there any signals at
the
L500, L501
No
Yes
Check
U501
What is the type of
sound from the
Speaker
Is there any signals
at the pin#12 and
pin#13 of UCD503 ?
Is there any signals
at C506, C512 ?
MP3
SPEAKER PHONE
The pin #5, #7
of U500 is
"High"
The pin #5,
#7 of U500 is
"High"
Check
UCD503
Check
U101
Yes
Yes
No
No
Check
UCP201
Yes
Yes
No
No
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