This manual is very useful because it presents the technical specifications of the cd player, including the manufacturer of the reader, this helps if you need to replace it. It also displays the settings and layout of the circuit.
Manual was a good representation of service infomation for the EWV404. It worked well for my repair.
Text excerpt from page 22 (click to view)
6.10. Removal of Analysis Block 1. Remove the lamp unit according to the section 6.9. "Removal of Lamp Unit". 2. Remove the upper case according to the section 6.2. "Removal of Upper Case". 3. Remove the A-P.C.Board according to the section 6.3. "Removal of A-P.C.Board". 4. Unscrew the 2 screws and remove the intake duct (1) block (with RP.C.Board).
5. Unscrew the 1 screw, then remove the thermofuse cover and the thermofuse.