The power supply blew and I need the schematic for the power supply.

You didn't tell us what make and model you're asking about, but generally if you contact the customer service department of the company that made the unit, they will supply the schematics for their devices.

You probably need to replace the filter caps on the power supply. You might want to vist the organforum.com for discussion. You can find schematics to download at captainfoldback ... search google for hammod schematics and that site should be listed. Some capps are available form antiqueelectronic supply... search google for that. or go here: http://www.tubesandmore.com/

Behringer re-uses a lot of design... you might look at page 2 of this download:

http://elektrotanya.com/behringer_pmh100.pdf/download.html

Scroll down to "Get Manual" and click to download. On page 2 is the SPS400 power supply which is one of the smaller switching supplies they use. You may find the schematic is close, possibly they de-populate it as a smaller supply. When repaired, start the supply for testing with a 60 watt light bulb in series with the power input. Use an isolation transformer for troubleshooting for safety.

You start by downloading the schematic here:

http://elektrotanya.com/peavey_valveking_100_212.pdf/download.html

Scroll down to the link "Get Manual" and download the schematic. Note that it has several pages of parts list preceeding the schematic.

Next, put a 150 Watt incandescent bulb in series with the power cord to act as a current limiting fuse. Now replace the fuse and proceed with testing. You may find that one or more filter caps have shorted. Also pay particular attention the the BIAS power supply. You should see about -35 to -40 volts. Note that the series lamp will come on if excess current is being drawn and voltages will be low if the lamp lights. If the BIAS supply has failed, it is possible your power tubes have been damaged.

Cost by replacing the amps would NOT be cost effective.

In looking at the schematic, assuming there was a voltage surge on input power, possibly the diodes and capacitors in the power supply are damaged if the fuse blew and was replaced.

If the speakers were powered by a different receptacle than the source feeding the audio to these was, ground bounce may have destroyed the first input stage.

You need to give us current symptoms so we can direct replacement of bad components.

Most of the problems with the small guitar amps are blown power amp chips. They usually use chips like the TDA2030 which look like a power transistor.
Most other problems involve broken connectors, bad solder joints or cracked circuit boards. The power supply area is so simple one doesn't need a schematic for that part which is usually just three terminal regulators for +/-15 volts. Schematics are often hard to find.
Try this site, although this is a different model, much of the schematic will likely be the same.

http://elektrotanya.com/marshall_valvestate10_10w_8001_8010.pdf/download.html

When he bulb blew out, it temporarily shorted and blew out the Triac that controls the voltage to the lamp. It will need to be replaced... A lot of the Chauvet units use a 16 amp, 600 volt Triac part number :

BTA16-600BRG

which is available from Digikey. It will be mounted on a heatsink.

Hi. use this link to check for the schematics.


crateamps.com/support/discontinued.php

or

music-electronics-forum.com/sitemap/f-60.html.

take care.

Here is a troubleshooting hint:

Put an incandescent lamp in series with the hot side of the power cord. This acts as a resetable fuse while troubleshooting so you don't blow fuses.

Schematics are hard to come by, but power supplies are easy to trace the circuitry.

Check filter caps and the diodes and THEN look for hot (temp) IC's and transistors.

Try contacting their service center rep at (801)566-8800. They might send you a schematic for the pedal if you explain your situation. They do recommend using the original power supply PS0912 which should still be available. Hope this helps.