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Messages - MurphyPeoples

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Amplifier Discussion / Re: Fender Pro 185 2x12 - New Problem Child
« on: July 03, 2017, 04:54:05 PM »
I believe it's a testament to how good Fender built these things 30 years ago. I reflowed the solder on the Capacitors, Cleaned out all the Pots, Replaced broken and cracked input jacks.
I fired her up, and WOW. Beautiful sound. Great Reverb! Just excellent overall.

I did learn one lesson though... this tear down I simply cut the reverb coax cables to get them out of the way. WRONG! .
It took me a good while to solder all the lines properly together and heat shrink them well. Sheesh. Lesson Learned.  ::)

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Amplifier Discussion / Re: Fender Pro 185 2x12 - New Problem Child
« on: July 01, 2017, 05:24:04 PM »
Well, I put the whole amp on the bench, and sprayed down all the pots with D5. And Miracle of Miracle's - everything is great. Damn this thing is LOUD. (Thanks Enzo!)

I noticed that two of the input jacks were "Super Glued" together. Wiggled them a bit, and they came apart in my hand. LOL.

Thankfully the board looks hack free to me. More educated eyes might see something I don't though.  ;)

So I'm pulling the board anyhow to replace those. I'm posting a couple of photo's of "warm" spots on the board. I took pics of both sides.

It looks like the heat is from CR45, CR54, CR55. Just wondering if this is common enough to leave alone?

Thanks again!
Murphy

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Amplifier Discussion / Fender Pro 185 2x12 - New Problem Child
« on: July 01, 2017, 03:35:22 PM »
Hello! I'm onto my second project now that it's summer and it's way too hot to spend much time outside in the afternoons.

My Fender Pro 185 is a real head scratcher. I plug in to the amp and get sound. I'd say it's like the volume is set to "3". But the volume control does NOTHING. 0 to 10 - Nothing. Always at "3".

I'm pulling the board this afternoon. I've already checked put speakers and they are in fine shape and both receive and push sound.

Any insights would be appreciated. I'm thinking about changing out the volume control straight away, but will wait to here from you guru's on here.
Thanks !
Murphy

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Had to pass. It's still available.

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Last One.

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Another Pic. (Won't let me post more than one at a time even though they are small).

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More Pics.

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More Pics.

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Check it out, it works or it doesn't.  It has some specific issues or it doesn't.  NOisy controls or not?  Ripped speaker?

See the attached pic in original post.  It works, it's got scratchy pots. Seller says:

The speakers have some type of glue around them, but it doesn't appear to be
because of bad speaker surrounds...looks more like it was meant for sealant.
One speaker has been replaced, but with another Fender speaker.
Someone has reversed the back panel and added a jack ... don't know if this was
for headphones or another speaker. This can easily be put back to the original state.


The worrisome part is the sealant around the speakers? Have you heard of this Enzo?
It's $200.00. I thought it would be fun to own a piece of history (but not a piece of Sh$t) ; )
Murphy

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I have an opportunity to pick up a working Fender SS Super Reverb. I know it supposedly "sounds terrible", but I thought it would be
a kick to own a piece of funky fender history. Any thoughts or words of advice or warning? Let me know!  ;)

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Amplifier Discussion / Re: Princeton Chorus SS Board Advice Needed
« on: January 26, 2017, 07:02:38 AM »
Thought I'd give a final update. I changed out the jack with the "low cost" model to which I provided a link early. At half the price, they came in looking great, and once installed worked PERFECTLY.
I D5'd out all pots, and reflowed the soldier to each one plus the Caps. When I cut the amp back on, it sounded GREAT. No volume issues, and just had that warm Fender tone. Really surprised at how great
the SS Princeton Chorus sounds!

Next Up : Late 1980's SS Pro 185. Same issues.

Glad I bought many extra parts!
Murphy

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Amplifier Discussion / Re: Princeton Chorus SS Board Advice Needed
« on: January 14, 2017, 07:07:35 PM »
Not sure but it might help....

The link I posted in post #3 has articles for fixing the HRDX volume problem, same problem, use of a linear pot instead of log.

Here's the link again...

http://hotroddiy.com/howtoarticles.php

Read the article "Controlling the Hot Rod's Volume" go to "Master Volume Mod" within that article.

also see..... "James E Vanden Berg Mods, The"

Bless you for that info! Brilliant.

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Amplifier Discussion / Re: Princeton Chorus SS Board Advice Needed
« on: January 13, 2017, 07:24:51 PM »
Changing to an "audio" taper/slope will help this issue.

If anyone has done this and knows of the part number, I'd be grateful for the info.

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Amplifier Discussion / Re: Princeton Chorus SS Board Advice Needed
« on: January 11, 2017, 06:23:06 PM »
I got both packs of the 4-pin and 9-pin today. They look exactly like the fender jacks with same quality, at least to the eye.
I'm soldiering it in over the weekend, and I'll let ya'll know how it sounds.

P.S. - I wish I had a shop like Enzo's was around here! LOL. Guitar Box stores have put all our small shops out of business over the last few years.

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Amplifier Discussion / Re: Princeton Chorus SS Board Advice Needed
« on: January 10, 2017, 07:40:19 PM »
Yes, that is a reputable company.
See the note about not including the nut? 
I'm assuming they are getting the parts from Fender's supplier rather than from Fender themselves.  That and the fact that the nut is not included means a lower price.

Gosh. Those nuts are like a dime at Mouser Electronics. LOL.
I'm not new to electronics, but the Amp PCB parts are quite different than Pinball PCB.s  ;)

I've ordered quite a few and will post a follow up on quality once they arrive.

On another note... it took me nearly an entire hour getting the wrong #1 input jack (it was a low profile 9 pin - I think for a Hot Rod) off the darn board. Whoever hacked the board last used
enough soldier to sink a battleship. I'm not kidding. I had to take it very slow, and used around 12" of super wick copper before the jack would even begin to budge.

Thankfully didn't destroy a circuit in the process. My meter shows everything still connected. Whew!
Murph

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