A site where discontinualed schematic diagrams and back dated information can be found on discontinued radios tv's and any electronic equipment can be found. Newer manuals either Service and operating manuals. Radio amateurs should find this site a great source for ham radio equipment manuals. I will return to this site should I need information on any electrical equipment. priced easy to download in a PDF format and print pages need to undertake the repair.
Quality scan of the original. All the detail necessary to troubleshoot, repair and adjust the unit. I'm sure I will be downloading more manuals in the future as the need arises.
Well.. I'd searched for this manual and although I found many copies online I was pleased to find your website with a well balanced pricing system and easy to search and follow links. That together with the very quick response time was just what I was looking for.. being a very impatient tech.. ;-) I had the service manual in front of me within a short time.
Bookmarked.. and you can bet I will always come here first for my service & user manuals..
best regards
Ed(Tony) Foley
G7WHK
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 = =