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Flow Chart of Troubleshooting
9-16
9-8. Speaker Part
Speaker does not work
Yes
Not OK
Check R410 and R415
Solder L407 and L408 again
OK
Replace UCP200
Check UCP200
OK
END
Replace the speaker
Not OK
Solder U401 again
Not OK
Check Pin #15, #17 of
U401
OK
Check L407 and L408
Not OK
Solder R410 and R415 again or
replace U401
OK
Not OK
