im new to repairing guitar amps - diyAudio
Go Back   Home > Forums > Live Sound > Instruments and Amps
Home Forums Rules Articles diyAudio Store Gallery Wiki Blogs Register Donations FAQ Calendar Search Today's Posts Mark Forums Read

Instruments and Amps Everything that makes music, Especially including instrument amps.

Please consider donating to help us continue to serve you.

Ads on/off / Custom Title / More PMs / More album space / Advanced printing & mass image saving
Thread Tools Search this Thread
Old 13th December 2011, 04:31 PM   #1
diyAudio Member
Join Date: Dec 2011
Question im new to repairing guitar amps

im trying to repair a crate g40c or should i say im trying to connect the reverb tank back to the amp but i dont know where on the board it was connected to to begin with? can anyone school on this?
  Reply With Quote
Old 13th December 2011, 04:34 PM   #2
kevinkr is offline kevinkr  United States
diyAudio Moderator
kevinkr's Avatar
Join Date: Sep 2004
Location: Boston, Massachusetts
Blog Entries: 6
Moved to I&A per forum policy.

Someone here probably knows the answer..
"To argue with a person who has renounced the use of reason is like administering medicine to the dead." - Thomas Paine
  Reply With Quote
Old 14th December 2011, 01:34 AM   #3
diyAudio Member
indianajo's Avatar
Join Date: Jan 2010
Location: Jeffersonville, Indiana USA
look on or at the worst , google, for the schematic for this amp. Sometimes the service manual has a parts layout picture.
Dynakit ST70, ST120, PAS2,Hammond H182(2 ea),H112,A100,10-82TC,Peavey CS800S,1.3K, SP2-XT's, T-300 HF Proj's, Steinway console, Herald RA88a mixer, Wurlitzer 4500, 4300
  Reply With Quote
Old 17th December 2011, 05:30 AM   #4
diyAudio Member
Join Date: Apr 2011
Location: El Cajon, CA
Does the circuit board have 4 stiff wires coming off it where there may have been a molex connector? Or were the reverb wires soldered in to board itself? I am assuming there are no RCA/phono plugs used.
Can you post a picture?
  Reply With Quote
Old 22nd December 2011, 02:08 AM   #5
shanx is offline shanx  Canada
diyAudio Member
Join Date: Dec 2010
Location: Quebec
Had a look at a pretty small schematic online. the ''output'' to the reverb tank is marked J8 and the signal ground J? I could not read but it is across a 10 K to the signal out.
Return Back from the tank marked J13 on signal and J 14 on the signal ground.
  Reply With Quote
Old 22nd December 2011, 07:09 AM   #6
diyAudio Member
Join Date: Apr 2011
Location: El Cajon, CA
Default schematic please?

Could you point me to the way of the schematic so i can see what you are seeing?
  Reply With Quote


Hide this!Advertise here!
Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

Similar Threads
Thread Thread Starter Forum Replies Last Post
Why do solid state guitar amps need so many op amps? razorrick1293 Instruments and Amps 2 8th June 2011 10:06 AM
ok maybe im just a newb when it comes to amps but... coreythompsonhm Tubes / Valves 2 3rd March 2011 02:02 PM
repairing 5-7k amps timwebb Car Audio 11 25th November 2010 03:14 AM
a couple amps im biulding XTRMEASURES Car Audio 9 18th July 2006 05:39 PM
Op Amps in Solid State Guitar Amps MrGuitardeath Instruments and Amps 1 11th February 2004 07:43 PM

New To Site? Need Help?

All times are GMT. The time now is 02:51 PM.

vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2017 DragonByte Technologies Ltd.
Copyright 1999-2017 diyAudio

Content Relevant URLs by vBSEO 3.3.2