20 Most Recent Fender Frontman 212R 100W 2x12 Guitar Combo Amplifier Questions & Answers

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Find another speaker to check it with. I've had several fender amps to blow their speakers during loud playing.

... do you, by any chance, have non humbucking pick ups on your guitar? Just curious...

sounds like bad caps and maybe a failing output transistors. Use Deoxit contact cleaner too.

Probably a bad transformer? Do you have power on the secondary side? Power in is one thing power out is another, hope this helps?

If the humming ONLY happens when a cable is plugged into the amp, the problem is in the cable or the guitar. Poor quality cables or wrong cables will result in hum. Defective wiring or connectors in the guitar OR having the guitar near a source of magnetic fields will result in hum. We cannot diagnose these possibilities remotely.

You have an internal component heating up and loseing contact. Take it to a Fender service center for repair.

It does indeed sound like the power amp section. Contact the manufacturers customer service department for the schematic. Then trace it back to the problem. If you do not know how to do this, you're best taking it to a repair shop. If you poke around inside with out knowing what you're doing you can fry something or get a nasty shock.

PRE OUT/PWR IN - (1) Effects Loop - Connect PRE OUT to an effects device input, then connect the effects device output to PWR IN. (2) Multiple Amps - Connect the primary unit's PRE OUT to the auxiliary unit's PWR IN. The primary unit is used to control all auxiliary units. (3) Recording or Reinforcement - Connect PRE OUT to sound equipment's input. Both jacks use a TS (Tip-Sleeve) standard type plug for connections. PRE OUT includes onboard tone shaping.

try plugging into a different socket if that doesnt solve problem you may need to replace cord. sounds like a loose neutral in socket though.

This is probably not a DIY repair. You best take it to a repair shop. Likely the power amp has failed or other common problems are broken connectors/jacks, broken volume pots, and finally circuit board cracks.

When i turn on my 212R it turns on in drive channel. if footswith is plugged in, then it turns on in the clean channel, but after switching in drive it is impossible to switch it back in clean channel. What could be wrong? Swith position doesnt change anything and it seems like switch is OK.

speaker placement, might have to try some different locations or tilt back a little.

If you don't want distortion, get rid of the overdrive pedal... Twangy USUALLY comes from the GUITAR and NOT the amp... test it on a different amp to decide... Buzzing CAN be caused by "fret buzz" which is due to IMPROPER guitar setup such as neck bend and string height.
Start using ONLY clean channel on the amp and NO reverb. If you verify that the guitar sounds bad on a different amp, take it in to have it setup properly.

You had best get a second opinion! When somebody says "there is something wrong" means they don't really know the details enough to give you an estimate even. If the amp cuts out sharply I would suspect that: 1. Bad volume control 2. Cracked circuit board 3. Bad solder joint on circuit board 4. Bad jack. These are in order from least to most likely.