4-5
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
Keypad Board
Speaker
Speaker Rubber Left
Speaker Rubber Right
5.
Tear off Keypad Light Insulator, then remove four screws of Keypad Board
and tear off 3M Tape then unscrew two screws of Speaker Holders to
remove speaker.
Tape 3M J350 17*60mm
Keypad Light Insulator
Speaker Holder