LG KF750 Service Manual page 113

4. TROUBLE SHOOTING
4.11.2 Speaker (Voice Loud Speaker, Midi, MP3, Key Tone)
Signals to the speaker
•
- Speaker signals are generated at Veronica
• SPKRP, SPKRN
- Speaker path:
• 1.Veronica (SPKRP, SPKRN) →
• 2. C531, C532 on the main board →
• 3. U500(audio amp) on the main board →
• 4. U501 (Analog switch) on the main board →
• 5. LCD FPCB →
• 5.Speaker/Receiver
Note: It is recommanded that engineer should check the soldering of R, L, C along the
•
corresponding path before every step.
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