Epson DM-M820, Technical Reference Manual, Page: 281 / 324

Rev. I Disassembly and Assembly 9-65
MR Series Technical Reference Manual
Speaker
1. Remove the IM-800 upper case. (See page 9-42.)
2. Remove the riser frame. (See page 9-43.)
3. Remove the CD/FDD bracket. (See page 9-49.)
4. Remove the HDD bracket. (See page 9-53.)
5. Remove the Power Supply. (See page 9-67.)
6. Pull out the cable connecting the speaker from the main board.
7. Remove two screws fixing the speaker.
Note:
There is the main board which cannot connect the speaker. The way of discerning is as follows.
Speaker cable
screw
Main board which is able to attach the speaker
Speaker Connector
Main board which is not able to attach the speaker