Original well scanned manual. Got the job done. Microwave problem found & corrected. For $5 and a new magnitron from ebay, it was a cheap and good the first shot fix. Electrical schematics allowed me to mage sure every thing else was ok before cutting and order for parts. Hard to live without.
Text excerpt from page 80 (click to view)
DEH-P400,P4000,P4050
Audio Adjustment
Equalizer Curve Fine Adjustment
You can adjust the center frequency of each equalizer curve band (LOW/MID/HIGH) and the Q factor (curve characteristics).
Level (dB)
Q=2N Center frequency
Q=2W Frequency (Hz)
1. Press the AUDIO button for 2 or more seconds to select Equalizer Curve Fine Adjustment. 2. Press the AUDIO button to select the desired band for adjustment. 3. Select the desired frequency with the 2/3 buttons.
LOW: 40 + 80 + 100 + 160 (Hz) = = = MID: 200 + 500 + 1K + 2K (Hz) = = = HIGH: 3K + 8K + 10K + 12K (Hz) = = =
4. Select the desired Q factor with the 5/� buttons.
2N + 1N + 1W + 2W = = =
Loudness Adjustment (LOUD)
The Loudness function compensates for deficiencies in the low and high sound ranges at low volume. You can select a desired Loudness level.
1. Press the AUDIO button and select the Loudness mode (LOUD) in the Audio Menu. 2. Switch the Loudness function ON/OFF with the 5/� buttons. 3. Select the desired level with the 2/3 buttons.
LOW + MID + HI = =