Question about Fender Frontman 212R 100W 2x12 Guitar Combo Amplifier
If the reverb is set above 1 or 2 there's a siren like noise and this noise gets louder as i turn up the reverb if you unplug the red and white Rca plugs from the reveb tank the sound goes away and the amp works fine but then i have no reverb what is wrong with my reverb tank?
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Posted on Jan 02, 2017
Here is an article that might help:http://www.guitarplayer.com/article/reverb-troubleshooting/jun-09/97165 Here is the schematic:http://www.fender.com/support/amp_schematics/pdfs/Hot_Rod_DeVille_Schematic.pdf Check to see if someone hasn't reversed the input and output cables at the reverb tank. Then troubleshoot the reverb section .
Posted on Aug 29, 2009
SOURCE: my reverb on my Fender
Your reverb spring is most likely broken. If it has electronic reverb, then the chip has gone out. For both of these problems, a qualified amplifier technician will have to look at it and replace the parts.
Hope that helps!
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Posted on Feb 13, 2011
You actually have the "B" version as the original 25R doesn't have RCA jacks. Anyway, on with your problem...
I want you to do a test: With a set of headphones plug them into the preamp output and then play your guitar... don't expect much loudness, it may be very faint and will ONLY be in one of the sides of the headphones. This tests the preamp section... have the guitar volume wide open.
IF you can hear the guitar that way, then the switch contact on the PA INPUT jack (not the preamp output) is not making contact. These jacks are really poor and the problem is not that uncommon. Fix is to open the unit and increase the spring tension on the contact or replace the jack. Never use the jack as they worsen evertime you plug something into it.
Note that the failing switch symptom MAY be broken soldering in the vicinity of the jack so look for that also. And also check the soldering of the guitar input jack as that is a common problem. Always loop your guitar cable through the handle so tripping over the cable doesn't break the jack by yanking the plug sideways... another common problem.
Posted on Mar 25, 2011
SOURCE: Hey, I brought my Fender
Your amp uses a "reverb tank" that has two or three springs that are suspended. One end of these springs are driven by a transducer and the other end the vibrations are picked off with another transducer. If you dropped the unit, possibly the two cables that go to this tank on the bottom of the cabinet have come loose. other possibilities are the transducers have been damaged... or one of the cables has broken or the electronics that drives this and receives the return has broken. If you are not electronically adept, the only DIY is to check that the cables that plug into the reverb tank at the bottom of the cabinet are connected. The tank is often covered with black cloth like plastic and the cable have RCA type plugs that plug into it.
Posted on Oct 05, 2011
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