Very good manual, in depth and complete. Only criticism is that some of the circuit diagrams are slightly blurry and hard to follow for long periods of time, but this is to be expected. Perfect for any maintenance required. Also contains the wiring diagrams of the control cable for constructing extensions.
Detailed SONY CFD980 Service Manual at an easy to find one stop shopping. Make my radio hobby technically interesting. Thanks.
Text excerpt from page 23 (click to view)
Section 3 Service Overview
3-1. Cleaning
Clean the filter at the inside of the front panel periodically because it apt to catch dust. It is recommended to replace the filter every five years. � Filter (3U) : 2-139-072-03 c If the BDX-E1000 is kept on operating with too dusty of the filter, the temperature inside the unit getting rise. This may cause a fire. 1. Turn the power off. 2. Loosen the locking screw on the front panel using a flat-blade screwdriver. 3. Pull the locking screw toward you and open the front panel.
Tape
6. Fasten the filter to the tape.
Front panel
Tape
Filter
Front panel
Locking screw
4. Peel the filter away from the tape. 5. Clean the dust on the filter using a vacuum cleaner. n If the filter is too much dusty, it is recommended to wash it. When washing the filter, be sure to dry it well.
