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Post subject: Fender Deluxe Reverb Issues
Posted: Tue Apr 17, 2012 1:14 pm
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This is my third Fender Deluxe from Guitar Center. The Vibrato channel has a continual popping sound that increases with the speed and intensity dials. Has anyone else experienced this problem?


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Post subject: Re: Fender Deluxe Reverb Issues
Posted: Tue Apr 17, 2012 9:48 pm
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I have the same problem w/mine. W/the intensity turned all the way down, it's barely audible. It completely goes away when the footswitch is unplugged. I don't use the vibrato so for me it's not a problem. I don't know if there's a solution to this other than not to use it. I've read here that others have this as well. What I don't know is if all the new DRRIs do this.


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Post subject: Re: Fender Deluxe Reverb Issues
Posted: Tue Apr 17, 2012 10:31 pm
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Here's some information and one possible solution for the notorious "trem tick" issue......

http://www.fenderforum.com/userphotos/i ... ecid=67321

HTH

Arjay

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Post subject: Re: Fender Deluxe Reverb Issues
Posted: Wed Apr 18, 2012 1:02 am
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Thanks Arjay, I'm saving that page for future reference.


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Post subject: Re: Fender Deluxe Reverb Issues
Posted: Wed Apr 18, 2012 7:08 am
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Por nada, Señor.

Arjay

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Post subject: Re: Fender Deluxe Reverb Issues
Posted: Wed Apr 18, 2012 9:55 am
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Yeah, I really like the amp but can't figure out why Fender would continue to sell the amps with the popping issue, especially for that kind of money. It's still under warranty so I'm going to take it an authorized repair guy.


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Post subject: Re: Fender Deluxe Reverb Issues
Posted: Wed Apr 18, 2012 11:50 am
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If it's any consolation, many of the original blackface and silverface amps equipped with tremolo suffered from the same ailment. There was a TSB covering the phenomenon and a suitable fix for it sent around by FMI in the early '70s.

Arjay

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Post subject: Re: Fender Deluxe Reverb Issues
Posted: Wed Apr 18, 2012 12:14 pm
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Retro, with :?: the original DR blackface based on AA763 schematic, does it show the 'tictac' due to the wibrato ?

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Post subject: Re: Fender Deluxe Reverb Issues
Posted: Wed Apr 18, 2012 1:50 pm
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I do not know as I haven't seen an AA763 DR in over three decades, and then only briefly. AFAIK, there was no change in the trem layout when the changeover to the AB763 revision appeared. Thus, I'd hazard a guess that the possibility for "trem tick" might exist with the original AA763 amp as well.

JMOOC, HTH

Arjay

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Post subject: Re: Fender Deluxe Reverb Issues
Posted: Wed Apr 18, 2012 4:47 pm
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A '70 silverface princeton reverb had a steady 'thumping' sound in sync with the vibrato.

It was barely audible until the amp warmed up. Then you could clearly hear it. A replacement of V4 fixed it.

May not have been the same issue you're having.

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Post subject: Re: Fender Deluxe Reverb Issues
Posted: Thu Apr 19, 2012 9:50 am
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This one is the wine red color '65 Deluxe Reverb reissue. Like I said, I love the amp just can't live with the constant popping or thumping when the Vibrato is on.
Going to take it to the repair shop to see what they say.


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Post subject: Re: Fender Deluxe Reverb Issues
Posted: Thu Apr 19, 2012 10:49 am
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Best of luck, let us know how it turns out.

Arjay

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Post subject: Re: Fender Deluxe Reverb Issues
Posted: Fri Apr 20, 2012 2:26 pm
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ooooooh buddy i went though 2 fsr drri in wine red tolex that had a tube rattle, i had noticed the popping but thought it was a tube issue.
i then decided to go elsewhere, got an egnater tweaker 40.
i do miss the tone of the drri, but know im very careful. i may upgrade to a rebel 30.
but im fighting gas.

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Post subject: Re: Fender Deluxe Reverb Issues
Posted: Fri Apr 20, 2012 4:16 pm
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Arjay, thanks again for that great site. I remember one of my original posts here on this board was a SF Bandmaster Reverb that "ticked" like crazy. Still have that Fender notice you posted. Boy, the dressing around that 12AX7 is so critical, it isn't funny. I just played with the wiring layout with the amp on until the tick went away. That's all it took.

Unfortunately, you can't change the layout of a printed board. Which is my guess as to some of the origin of the problem. I wonder if you set that opti-bug on a separate board and kinda P2P it to the main printed board...

Oh well, the Fritzy mod seems a lot easier.


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Post subject: Re: Fender Deluxe Reverb Issues
Posted: Sat Apr 21, 2012 2:53 am
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BMW2002Ti wrote:
Unfortunately, you can't change the layout of a printed board. Which is my guess as to some of the origin of the problem. I wonder if you set that opti-bug on a separate board and kinda P2P it to the main printed board...


Actually, FMIC did just that with the DRRI, and very recently......

Image

Image

The top photo shows a first-edition '94 chassis (mine), while the lower photo illustrates a very recent example. Note the mickey-moused ancilliary PCB mounted adjacent to the rev/trem footswitch jack. This board contains a few discreet components (some resistors and a pair of small axial-lead electrolytic caps) and an op-amp IC (likely a digital oscillator module). The location markings for the now-deleted opto-isolator in the originally-intended position are still visible on the board. This revision to the re-issue circuit occured around mid-year 2010.

Did it cure the trem tick?

I have no idea.

But the amp thus configured is no longer an "all-tube" platform.

:?

Arjay

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