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Volume Sporatically Fades Out

Amp: Fender Frontman 65R Solid State Amplifier.

I recently had another problem with this amp. Fuses were blowing as fast as I could put them in. I had the local amp tech fix it, but now the volume just sort of randomly fades out for a minute or so and then returns. When it fades out it is still audible, but very low. Any ideas?

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Take it back and have him try it with you there so he can hear what you're hearing. He should cover his work unless its something that went wrong after the repair.

Posted on Jul 24, 2009

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I have a fender frontman 65r with a 8ohm speaker can i add another 8ohm speaker to this


http://cie-wc.edu/Series_Parallel_9_14.pdf
Not recommended.
you could add 3 more 8 ohm speakers in series / parallel wiring and keep an 8 ohm load to the amp, or
2x 4 ohm speakers in series, or
2x 16 ohm speakers in parallel

Jan 11, 2014 | Fender Frontman 65R 65W 1x12 Guitar Combo...

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Fender Frontman 212R crackling noise


After ruling out guitar wiring or bad cables...
Try the 2nd input on the amp
also
Is it on both channels, or just one?

Nov 01, 2013 | Fender Frontman 65R 65W 1x12 Guitar Combo...

1 Answer

My fender frontman 65r started crackling even with nothing plugged in


This sounds like one of this nasty problems with the solder points. One of them might be faulty so sometimes there is a contact sometimes not. You could try to locate it by knocking gently with the plastic end of a screwdriver on the pcb. If vibrations cause the noise you could check all solder points optical or just resolder them. There are not too many. Also check all potentiometers! As they are mechanical parts vibration caused issues can be found here very often especially on their solder points.

Mar 15, 2013 | Fender Frontman 65R 65W 1x12 Guitar Combo...

1 Answer

Play mac through Fender Frontman amp


Simple: connect the headphones out (3.5mm jack) to the input jack of your fender (6.3 jack). By doing this you will loose one channel so you better generate a mono signal inside your computer before. Electrically this is no problem, nothing will be damaged. Turn the gain and volume knobs down and apply a signal from your Mac. Gently increase gain and volume. Et voila wonderful mono sound through a guitar amp

May 24, 2012 | Fender Frontman 65R 65W 1x12 Guitar Combo...

1 Answer

I've told my Frontman 65r has a real reverb tank (accutronics). But it's almost imperceptible, even with the reverb knob at 10. Is that normal? Also, mid scoop for the drive channel and treble/bass for the...


The reverb should be quite strong. I would first look at the reverb volume pot R42 which is a 50K pot. I would also check the voltages on the test points near U4 (TLO-72 op amp tp13 and tp14) which amplifies the signal coming out of the box. It is possible the box has low power levels as well.
The problem is going to be around that section of the board if it isn't a dirty or dead(ish) pot.


The reverb should be noticeable enough to be annoying ;-]

Mar 18, 2011 | Fender Frontman 65R 65W 1x12 Guitar Combo...

1 Answer

I just recently purchased a Frontman amp about 11 years old . It started to blow fuses then a very loud buzz without any input no output. Is it worth the fix?


Assuming the fuse being blown is in the power supply, it's common for high output amplifiers to suffer from dried out capacitors. The really big main filter caps on the power supply board. The caps themselves often show a bulging of the body and can literally explode if the unit is left on.

If that is all that's required I'd definitely get it fixed as any tech worth his salt should be able to change them in a short time. Actually getting the correct value capacitor may cause a hold up but they are available.

I guess whether you go ahead is a matter between you and your wallet or wife :-) but I certainly wouldn't condemn the amp just yet.

Apr 21, 2010 | Fender Frontman 65R 65W 1x12 Guitar Combo...

3 Answers

Fender Frontman 65R Solid State guitar amp. After a while whether playing loud or not,it cuts out. Switched on when cold,it works again with no issues at all,but it starts cutting out again when hot. Same...


There is a protection thermistor in the circuit to keep it from over-heating, this is why it works again when it cools. Check and make sure you are not covering any ventilation holes, or if the unit has a fan, make sure it is working.

Aug 14, 2009 | Fender Frontman 65R 65W 1x12 Guitar Combo...

3 Answers

When i turn on my amp it makes a loud beeeeeeeeeeeeeeeep.


Turn the volume down.
Check your gain.
That should solve it.

Feb 05, 2009 | Fender Frontman 65R 65W 1x12 Guitar Combo...

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