is part of the manual is very useful for repairing
Here are circuit diagrams
if there is damage, I recommend using this part of the
a complete list of circuit boards and components
ecelent I was reciver the service manual soon I fell so happy very complete 100% positive all by this store tanks atte Luis salazar
Text excerpt from page 32 (click to view)
Section
07
Digital Signal Processor
7 Press n and then press q or r to select the desired Q factor. Each press q or r switches between the following Q factor: Q.WIDE (wide)Q.NAR. (narrow)
# You can adjust parameters for each band of the other speakers in the same way.
8 Press BAND to return to the playback display.
Note You can select a center frequency from among 26 frequencies for each band. You can change the center frequency in 1/3-octave steps, but you cannot select frequencies that have intervals shorter than 1 octave among the center frequencies of the three bands.