Question about Fender Hot Rod Deluxe Guitar Combo Amplifier

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The clean channel cuts in and out. The drive channel works just fine though. The clean channel also makes a rattling noise when it is working then it cuts out. Whats up with this thing?

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This is likely a bad jack for the foot pedal, or a problem with the pedal and cable. The jacks are junk and even with the pedal unplugged the switch contacts on this jack will vibrate and cause your problem.

Posted on Jul 21, 2010

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Posted on Jan 02, 2017

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My Fender Hot Rod deluxe makes a popping noise when switching back to the clean channel.


This is because your clean channel only runs through the pre-amp section, requiring an increased volume level to match that of the volume of the drive section which is overdriven by the pre-amp circuit. my suggestion is to use lower volume level on the clean channel of the amp. To get any volume boost you may need to match the two channels you could use a signal/volume booster or overdrive pedal between your guitar and amp input, switching it off and back on when you switch back and forth between channels.

Jul 15, 2012 | Fender Hot Rod Deluxe Guitar Combo...

1 Answer

Loud static noise in drive channel. gets worse in more drive. Plays fine in clean channel. Drive channels do not seem to work. Amp is Hot Rod Deluxe 40W


The thing you can try is to swap tubes V1 and V2 which are 12AX7's... if major change occurs including loss of any signal, replace the one that WAS in V2 position.

More than this gets into the electronics and if you don't have test equipment it is not a DIY thing so you would need to take it to a shop. There are several components including FET's Q1 and Q2 and what looks like BAD engineering design around these particular parts that could cause the problem.
The bad engineering looks like tinkerers designed the circuit rather than an engineer. Gates of these FET's are left floating on the end of a 1N4148 diode according to my schematic... I have seen MUCH poor engineering or lack of in a lot of the audio equipment.

Dec 08, 2010 | Fender Hot Rod Deluxe Guitar Combo...

1 Answer

Fender HRD - clean channel works fine, drive & more drive VERY low volume, like a headphone across the room w/ all 3 volumes at 10. LED works fine in drive/more drive. All same w/ footswitch,...


Wayne, There's a time to take the amp to a pro shop andf get it done right. It' saves time and headaches, and also keeps you from inadvertantly smoking other parts or yourself. Now is that time.

Apr 17, 2017 | Fender Hot Rod Deluxe Guitar Combo...

1 Answer

I've got a Honey Laquer(tweed) deluxe.Bought it new about three years ago. While it's powered up, there's a whine sound coming out, almost like a mid frequency feedback that doesn't change with the volume...


I suspect a bypass capacitor for the preamp section has failed. It needs to go to the shop and be tested with an oscilloscope to pinpoint the problem.

DO make sure the feedback is NOT from something you have plugged into it... make sure it is there with NO input cable plugged in. Often external devices can introduce ground loops an noise like this. Lamp dimmers (even stage lighting dimmers) can be a source of interference.

The sound you hear MAY not be the full loudness as the oscillation MAY be above your hearing range. This COULD cause overheating and damage so get it fixed before using.

Oct 04, 2009 | Fender Hot Rod Deluxe Guitar Combo...

1 Answer

Deville 212 overdrive channel making Loud humming noise


It sounds like a filter capacitor(s) has failed. The electrolytic caps dry out and cease to perform allowing unfiltered power to reach the preamp sections and get amplified.

Being this is tube with high voltages, an experienced person should work on it due to shock danger.

I assume you checked the tubes for shorts as well as emission since a heater to cathode short could cause this as well.

Sep 30, 2009 | Fender Hot Rod Deluxe Guitar Combo...

1 Answer

6 mnths old Alto L8 Mixing desk developed hiss on channel 1 only.


The slider or the amps for channel 1 may have a problem.

Sliders do wear out.

Try shorting channel 1 input and see if that affects the noise. A hissing noise is probably a bad preamp chip. That is shop work at a repair facility.

Aug 16, 2009 | Music

2 Answers

Fender Hor Rod deville footswitch


If the footswitch is not switching correctly, open it up and check for any shorts or a defective switch. Sounds like it's a problem with the switch.

Aug 14, 2009 | Fender Hot Rod Deluxe Guitar Combo...

2 Answers

MG100HDFX Amp - crunch setting seems too loud


There are 2 channels, Which means there are 2 sets of knobs ... One for clean and one for crunch. Start out with a low master volume and set up the crunch, Then the clen and switch between the 2 and make adjustments until they match volume wise ... Then turn the master up.

May 12, 2009 | Marshall MG100HDFX 100-Watt Amplifier Head

2 Answers

Guitar amp channel switch repair


Replace the switch. You gave no make/model number for your amp but if it has a jack for foot pedal operation of clean/dist function then try that. (on most amps) it will switch in spite of a bad front panel switch.

Dec 21, 2008 | Music

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