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Fender Frontman 212R (help)
Fender Frontman 212R (help)
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Old 18th March 2020, 12:29 PM   #11
Andre Oliveros is offline Andre Oliveros
diyAudio Member
Join Date: Mar 2020
Ok, thanks just to be sure because im not familiar with these terms or names,
Opamps = the ICs like the one i measured?
Zeners = the diodes? If so which ones?

Sorry about the question is just i never heard of it, and also when i googled thats what i got, if is not anproblem please confirm or clarify, thanks
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Old 18th March 2020, 08:21 PM   #12
Tarzan is offline Tarzan  Belgium
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Join Date: May 2004
Location: Genk
Opamps are the ic's, small black multipeed thingies, 8 pins. Labeled U1 to U8.
Zenerdiodes, D57 and D58.

1. Remove the opamps first.
2. Change the zeners.
3. Check the +/- 16V. Should be there.

If all is wel, insert the opamps, one by one. Check each time if you have the +/- 16V.
Do not continue if the 16V drops with,let's say, 0.5V or more.
Then, maybe an electrolitic cap coul be bad. But that's a bit to far to think about.

May the electrons be with you
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Old 19th March 2020, 05:33 PM   #13
Andre Oliveros is offline Andre Oliveros
diyAudio Member
Join Date: Mar 2020
Thanks a lot, i think this is going to put me in the right track, ill let you know as soon as i can order the parts and change em, thanks a lot pal
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