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Yamaha silent cello svc50 reverb won't turn on

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Can a replacement circuit board for a yamaha silent violin be purchased from yamaha?

there are repairable
all yamaha musical instruments web sites do have authorized service centers listed
sub menu services

worth contacting amazon also .
they may have a Yamaha repair contact

amazon sell the whole violins .
Amazon com Yamaha SV 130 Silent Violin Navy Blue Musical Instruments

Oct 11, 2016 | Yamaha Music

1 Answer

No reverb on my fender ps 160 Vocal amplifier

Here is a link to the schematic drawing

items to check are
1-the footswitch and plug
2-the reverb unit ,usually found at the bottom of the box
3-the reverb unit is plugged in to the amp
4-V6 a 7025 valve
5- the reverb switch is in the on position

Hope this helps


Oct 14, 2014 | Music

1 Answer

Yamaha R100 reverb Processor E4 error code

Best advice would come from Yamaha itself. Here's the link to Customer Service-
Contact Us Support Yamaha United States

Nov 19, 2012 | Yamaha Music

1 Answer

My RV600 Reverb Machine won't turn on. I'm using a standard 9v adapter...Do I need the behringer one of is my pedal just broken? I bought it about and hour ago.

Did you check the polarity of the adapter? The effect box uses inner pin for negative and outer barrel is positive which is oppsite from most consumer electronics.

Jun 22, 2011 | Behringer Rv600 Reverb Machine Effects...

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Amp is little used and now the reverb is not working. It is never moved from the room where I play.

There are only TWO op-amps and the tank involved with the reverb. Both of those are in one IC chip labeled "U2". It is a TL072.

Pin 1 of that chip is the output to the tank and pin 7 is the inout of the reverb control pot that then goes into the power amp.

They resistively mix the delayed reverb signal with the straight signal at the input of the power amp.

I assume you have turned up the reverb control which is just a volume control for the signal going through the tank.

There are so few parts involved with this that a failure is really rare.

May 13, 2010 | Fender Hot Rod Deluxe Guitar Combo...

1 Answer

Reverb problem

I highly doubt the reverb pan is dead, there are TL072 opamps on the input and output of the Reverb pan. Check those out. You can get the schematic from fenders website here. U6A and U6B are what you are looking for.

Dec 26, 2009 | Music

1 Answer

The screen of my SPX-90 yamaha reverb is showing weird symbols and the unit does not operate anymore. Any idee od the problem? Thank-you

Check the power supply voltages. Likely the 5 volts is low or out of tolerance. You MAY need to check that it is pure DC as bad filter caps can cause it to ripple out of operating range BUT still show OK on a meter.

Nov 26, 2009 | Yamaha Music

1 Answer

Hot Rod Deville, reverb squeal...

Here is an article that might help: Here is the schematic: Check to see if someone hasn't reversed the input and output cables at the reverb tank. Then troubleshoot the reverb section .

Aug 28, 2009 | Fender Hot Rod Deluxe Guitar Combo...

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