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Flow Chart of Troubleshooting
10-8
10-1-5. Speaker Part
Check the connection
status of LCD connector
HDC201
There is no sound from speaker
Are there any signal at
the speaker pad on LCD
PCB?
reconnect HDC201
Replace the speaker module
END
No
Yes
No
No
Yes
Check R345, R349 of
U302. Voltage is
≥
1V?
1
Yes
Check UCD107
2