Table of Contents
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Checking Flow
START
Check the state of
contact of dual mode
speaker
YES
Check
U202 works properly
YES
Check
U206 works properly
YES
Check
Voltage level of
4,5 pin of U206
YES
Replace U203
YES
Speaker
Works properly?
YES
Speaker working!
NO
Reassemble speaker
NO
Re-solder U202
NO
Re-solder U206
NO
Re-solder the components
NO
Change main board
- 73 -
4 . TROUBLE SHOOTING
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