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I need to replace the power and compressor lights,they are broken.

I don't know the part #s for these lamps. They both plug into the circuit board on the same connector, One is red and the other is green.

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Posted on Nov 25, 2014

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Dgx 230 dc in connector bad


This type of keyboard is well know for the power socket breaking away from the main PCB. You will need to unscrew lots of screws to reveal the circuit board with the power socket on. If you look closely at the solder side you will probably see that the track that the socket is soldered to has broken. Simply link the solder joint to the circuit further along the track by bridging between socket and next point along the track. You may need to replace the socket if it has become damaged. If you can use a soldering iron it is fairly easy but if in doubt contact a repairer.


If you need a socket Google :

Yamaha PSR power socket ( KPA3 / PA130UK / EPA3 ) (LB30226R)


Yamaha PSR power socket ( KPA3 / PA130UK / EPA3 ) (LB30226R)

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1 Answer

I have a Yamaha PSRE413. on/off does not work with adaptor, but works with batteries


If you are using the correct adaptor then the most likely reason is that the socket where the adaptor plugs in has broken away from the circuit board and will need to replaced/resoldered.




if you need a socket Google : Yamaha PSR power socket ( KPA3 / PA130UK / EPA3 ) (LB30226R)


OR if you have used the wrong mains adaptor and the polarity was reversed you may have damaged the diodes / voltage regulator on the power input.

Jan 24, 2013 | Yamaha Music

1 Answer

Sometimes, when I stomp the 7 button the peadlboard turns off and I have to unplug it and then plug it in again and this way it works..But it's annoying and I can't do it while I'm playing a...


Don't stomp so hard... the switches don't need a lot of pressure... You may be flexing the circuit board and causing a power loss resetting the internal microprocesssor. You might open the unit an look for board cracks near the 7 button. Theatrics of stomping does not improve the music and can damage these boards or any other pedals. Try gently working it and see if it still fails... if not, open the unit and look for bad solder, circuit board cracks, etc. as apparently the force is causing something to open up.

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My OS-2 Distortion pedal will not work. There is current flowing to the battery terminal, there is also contact noise in the output, but none in the input. The red light does not come on when powered and...


Common problem is a broken solder connection where power jack is attached to the circuit board. SOmetimes the circuit board is cracked or solder broken. If board is cracked, jumpers need to be soldlered on to bridge the crack.

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1 Answer

My Eliminator E-144 runs but won't light up. I have replaced the bulbs, replaced the fuse, the fan runs, the sensitivity dial and mic work, it spins but the bulbs won't light up?


A very common problem with the small Halogen lamps at this power level is the socket contacts burn up and no longer contact the lamp pins. Check the resistance between teh slip rings (lift one brush as the motor will be in the circuit if you don't) and look for a real low resitance since you have 6000 watts of bulbs, they will draw 5 amps total when running so they are about 24 ohms hot and since incandescents are about 1/10 that when cold expect around 2.4 ohms or so. Make sure you do not handle the glass of the bulbs. I have found sockets if yours are bad at an online source as

http://www.divinelighting.com/round-multibase-socket-g4-g53-gy635-lamp-holder-p-263.html

Check which base your bulbs have though as I replace other lamps here and this may be different than yours.

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1 Answer

Device powers on and goes through startup but no light. lamp is new. scanner moves but no light


Yep... I got one on the bench and also another I have just fixed. The one that is still sick has a lamp power supply that is inoperative. There are two supplies in this unit. One powers the electronics and the motors, the other the lamp. The lamp one is mounted bottom side under the lamp. I have partially traced out the circuit and I am trying to analyze it. It appears to have two transistors that drive the step down transformer that generates the 24 volts for the lamp. It appears they MAY use a Diac as a relaxation oscillator driving the bases of the large switching transistors. The circuit is fairly simple and has a small transformer for driving the bases as well as the larger output transformer. This supply operates directly off the line input so one needs to use an isolation transformer for personal safety when troubleshooting. I suspect the Diac might be gone in mine. The one I just fixed had been dropped and the plastic standoffs for BOTH power supplies were broken. The smaller supply on the one I repaired had the power transistors fracturing the circuit traces they were attached to so supply would not operate. Jumpering the breaks fixed the problem. Also on that one the audio sensitivity pot was smashed. Replaced that. I will be working on the one with the bad 24 volt lamp power supply again. In the meantime, see if on yours the ONLY problem MIGHT be the big power transistor leads have broken loose from the circuit board
The supply is mounted on three standoff plastic pins to the cover with the grill punching on the back side. Remove BOTH long side aluminum extrusions (8 screws +1 more) to free the long plate with the supply on it. Chauvet STUPIDLY have the heatsink aluminum dangling by the two power transistors so bumps flex the transistors... you will see it when you open it... You can contact me as fredy2 at the AOL.com.

Apr 27, 2011 | Chauvet Dmx-600 Intimidator 1.0 Color...

1 Answer

Yamaha P80 broken DC input jack


Probably the jack is still OK but broken from the circuit board.

If it is OK, one needs to use a bit of epoxy to hold it in the correct place and solder jumper wires to replace the EXPECTED broken circuit board traces.

The jacks are readily available, often at Radio Shack or for certain at Digikey.com should the connector be mechanically damaged rather than just seperated from the circuit board.

Apr 22, 2010 | Yamaha Music

1 Answer

Power will not go on after machine was dropped. Plastic was broken broken on the top of the device near the power connection but the circuit board appears to be undamaged.


The board may appear undamaged, but the instrument's behavior says something is broken. I have no idea what kind of musical instrument this is, but circuit boards are all the same.

Especially on boards with narrow circuit traces and surface mount parts, damage can be very hard to see. A trace might have a hairline break which would be impossible to see without bright light, strong magnification, and some idea where to look.

It's also possible that the board is fine, but some part has been damaged. The lead from some part may have broken away from the circuit trace, for example. Or a small surface-mounted component may have popped off completely or had a lead broken off.

Unfortunately, this kind of trouble is very hard to fix without detailed product information (circuit diagrams and board layout). Unless the manufacturer makes a service manual available to the general public, this means sending the unit back to them or an authorized service center for repair.

Feb 03, 2010 | Zoom Music

1 Answer

No power is coming through to my CTK 611, bought a new power unit and this has made no difference


There is a chance that the jack that the power supply plugs into is broken loose or has bad solder joints to the circuit board. I am hoping that you purchased a direct replacement for the power supply.

Oct 29, 2009 | Casio Ctk 496 Electronic Keyboard with 61...

1 Answer

My amp fell forward and the (knob side) hit the ground. Now there is no sound, but everything lights up.


You have probably broken some of the pots. You will need to take it in to be serviced or if you have experience take the amp apart and take the circuit board out. Examine the solder side where the control pots are. Hopefully you didn't break the pots themselves and the solder joints just need to be redone. Also look for broken traces near the pots. They look like little roads which they are for electrons.If they are broken you can bridge them with short pieces of tinned wire and if the circuit board is cracked it can be Crazy glued. Look for all the broken parts and don't miss any. If the pots are broken, Take the broken ones into an electronics supplier and ask for exact replacements. If its a tube amp look for tubes that are loose in their sockets and broken tubes. Absolutely do not work on the amp with it plugged in to the wall (no power running to it) If its anything worse than that, take it in to be repaired as you need schematics, test equipment and direct replacement parts to do a proper job. Hope this helps.

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