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Flow Chart of Troubleshooting
9-16
9-8. Speaker Part
Speaker does not work
Yes
Check L400 and L401
Check R444 and R446
Not OK
Solder L400 and L401 again
Not OK
Replace the speaker
OK
Check the pin #5, #8
of U403
Solder U403 again
Not OK
OK
Solder R444 and R446 again or
replace U401
Not OK
OK
Check UCP200
Replace UCP200
Not OK
OK
END
