7-8
EP757
SERVICE MANUAL
Introduction Fundamental Principle Mechanical Construction Procedure of Disassembly Function of Boards Specifications
Troubleshooting
Function Test and Alignment Procedure Firmware Upgrading Procedure DDC Key-In Procedure Appendix
7-2.4
D.
Audio Troubleshooting
Can hear
sound?
Start
Sound is clear
without noise?
Yes
Yes
Change
Speaker
Change
Main Board
End
Change
Spearker
Change
M/B
No
No
No
No