im new to repairing guitar amps

cutter5362 · 13th December 2011, 04:31 PM

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?

kevinkr · 13th December 2011, 04:34 PM

Moved to I&A per forum policy.

Someone here probably knows the answer..

indianajo · 14th December 2011, 01:34 AM

look on eserviceinfo.com or at the worst , google, for the schematic for this amp. Sometimes the service manual has a parts layout picture.

manoteal · 17th December 2011, 05:30 AM

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?
Mark

shanx · 22nd December 2011, 02:08 AM

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.

manoteal · 22nd December 2011, 07:09 AM

Could you point me to the way of the schematic so i can see what you are seeing?
Thanks,
mark

13th December 2011, 04:31 PM	#1
cutter5362 diyAudio Member Join Date: Dec 2011	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?

13th December 2011, 04:34 PM	#2
kevinkr diyAudio Moderator Join Date: Sep 2004 Location: Boston, Massachusetts Blog Entries: 6	Moved to I&A per forum policy. Someone here probably knows the answer.. __________________ www.kta-hifi.net

14th December 2011, 01:34 AM	#3
indianajo diyAudio Member Join Date: Jan 2010 Location: Jeffersonville, Indiana USA	look on eserviceinfo.com 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,SP2-XT's, T-300 HF Projs, Steinway console, Herald RA88a mixer, Wurlitzer 4500

22nd December 2011, 07:09 AM	#6
manoteal diyAudio Member Join Date: Apr 2011 Location: El Cajon, CA	schematic please? Could you point me to the way of the schematic so i can see what you are seeing? Thanks, mark

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17th December 2011, 05:30 AM	#4
manoteal 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? Mark

22nd December 2011, 02:08 AM	#5
shanx 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.

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