20 Most Recent DBX 231 Dual Channel 31-Band Graphic Eq Questions & Answers


Assuming the cord is well seated and has power, the power supply has likely failed. Take it in for repair or repair yourself. The power supply is VERY simple. Here is a schematic close to your unit:

http://elektrotanya.com/dbx_3231l_eq_sch.pdf/download.html

The power supply is on page 15 and consists of a simple bridge rectifier, filter and two three terminal regulators that generate +/- 15 volts. Any competent electronics person should be able to repair this.

DBX 231 Dual... | Answered on Mar 07, 2011


Here are some links for you:http://www.looperman.com/tutorials-mixing-1-how_to_use_graphic_eq.html Also:http://www.astralsound.com/graphic_eq.htm Also:http://www.soundonsound.com/sos/1995_articles/mar95/eq.html Try to stay away from the Smiley face curve. You are better served by using your tools properly with expert advice.

DBX 231 Dual... | Answered on Oct 13, 2010


If you're only using the keyboard, connect the keyboard output to the EQ input, and EQ output to your amp.

If you have multiple instruments and a mixer, run mixer output to EQ input, EQ output to amp.

More info, let me know.

Charlie

DBX 231 Dual... | Answered on Aug 29, 2009


I suggest checking to make sure those 2 units can actually use the same adapter and also check the polarity on both to see if they are the same. Most stompbox stuff usually has negative on the center of the socket, instead of positive like other devices. If I spend a little time I could find the manuals and find out for myself but, this was my logical "top of my mind" kind of advice. Those values (volts,mA, and polarity) must be known in order to help you further. I believe it will be 9v, a few 100 mA's, and negative in the center on both but, not sure.

Music | Answered Yesterday


Contact Clavinova directly to request the manual.

Music | Answered on Nov 11, 2020


Did you get it fixed?

I have exactly the same problem!

Music | Answered on Oct 26, 2020


hi becky
from looking up the model some of the prices were only 30.00 to 40.00 dollars needing repairs other units/ models went higher in price depending on model and if they where in good repair.
so the decision for u would be is this the organ that you want to restore or do you want to look for other units?

Music | Answered on Oct 23, 2020


So I got a used one of these for free because it had the same issue.
I read about battery failure, so I opened up the piano and sure enough the battery had corroded. I also read that the battery is only necessary for the memory feature, which I don’t care too much about. I pulled out the board (super easy to do, no screws or anything, it just pops out) and took it a local electronics/tv repair guy. In about a half hour he took off the battery, fixed a bad trace on the board with a quick solder, and handed it back. $40.
Plugged it back in, bam works like a charm.
As long as there wasn’t too much damage from corrosion, a repair guy should easily be able to do what I described.
I hope this solves your (and anyone else’s) problem!

Music | Answered on Oct 06, 2020


Take it to a music shop. They should be able give you help in finding a good place.

Music | Answered on Aug 01, 2020


https://www.alphapianostudio.com/

"Great teacher (Sandy) with lots of patient. Friendly and nice and also passionate till I have little time to rest my poor little hand. Learned for about a year plus and now can play more fluently and confidently. Price is acceptable and duration is just nice."

Music | Answered on Jun 20, 2020


update it or flash with new latest files

Music | Answered on Jun 12, 2020


I finally figured it out! 2020!! Turn off the keyboard. Hold the enter button, and press power. Press YES to reset! That will completely reset it as if it were new!

Music | Answered on Jun 06, 2020


Let us use a bit of logic to resolve this... I have an Axiom but it would be a lot of screws to take out to get to the part... so let us think about this. The resistor value starts with a "1" and we know it is 5% tolerance (gold). we know the resistor burnt up with likely 5 volts on it... Value could be 1000 ohms, however the voltages present (12 volts max) would NOT have burned up a resistor of 1000 ohms. The USB area is mostly 5 volts and across 100 ohms is only a quarter watt... not enough to really burn up a resistor... First thing is to MEASURE that the resistor s open... in spite of being burned, it MAY still be OK... these resistors now usually either open or remain close to their value. The resistor ALSO may be a fusible resistor intended to act as a fuse... Is the resistor open or not? is it near a resistance with a "1" as the first digit? If it is not open I suspect it is not all of the problem. In that case, look for a burned circuit trace on the board. If it is open, then MEASURE the voltage across the resistor with the power applied. If you find 5 volts, then it MIGHT be a 10 ohm used to limit the USB current to 500ma. Get back to me with your findings... I have unraveled many of these things...

Music | Answered on May 04, 2020


Yamaha pianos go through a self test on start up. This could indicate a problem on the main motherboard.

Try a hard reset.

Hold down top C key while turning on.

Wait for it to start up, if it still freezes its time to take it to the repair shop.

Music | Answered on Mar 14, 2020


Try this website:http://tubesandmore.com/ Look under reverb tanks. Check to see how many springs your old tank has and what size it is. I think Marshall used Accutronic tanks but have a look at all of them. There are pictures and info for each. Hope this helps.

Music | Answered on Mar 01, 2020


See https://www.diyaudio.com/forums/multi-way/99647-magnavox-horn-specs.html

Music | Answered on Feb 09, 2020

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