Search found 280 matches

by rogue777
Tue Nov 01, 2022 6:47 pm
Forum: Guitar Amplifiers
Topic: Peavey Deuce with a short in the preamp
Replies: 2
Views: 1554

Re: Peavey Deuce with a short in the preamp

I remember when Enzo was with us he mentioned that the 2 ufd caps were always a problem. This schematics shows a number of them in the preamp, labeled 2/35, being 2uf at 35 Vdc. A lot of the nicer Fluke handheld DVM’s have a capacitance measure function. So you can check cap value (ufd’s), but you h...
by rogue777
Tue Oct 18, 2022 10:38 am
Forum: Club Peavey
Topic: Enzo
Replies: 32
Views: 21661

Re: Enzo

Sorry to read the news. My condolences to your family. Enzo had many, many great repair posts and helped everyone. In every post he made, you could learn something about trouble-shooting and repairing guitar amps. He was there for people, always helpful.
by rogue777
Mon Jun 06, 2022 8:42 pm
Forum: Guitar Amplifiers
Topic: Studio Pro 60, Reverb not working
Replies: 10
Views: 2990

Re: Studio Pro 60, Reverb not working

In Enzo’s first post to your issue. He mentioned three resistance measurements, your response was that you verified the reverb tank input and output coils, two measurements. The third, being to verify R33 back thru the input cable and the molex connector, as Enzo mentioned is 22k. There was another ...
by rogue777
Tue Mar 22, 2022 12:02 pm
Forum: Guitar Amplifiers
Topic: New to me Valveking VK100 Head
Replies: 3
Views: 1211

Re: New to me Valveking VK100 Head

According to this speaker expert (and he really is an expert), a 16 ohm version and a 4 ohm version of the same speaker do sound differnt: https://www.youtube.com/watch?v=ZAUpWQWlTe0 Start utube video at 9:00 minutes Overall you just have to configure your setup, and then set to VK impedance switch ...
by rogue777
Sun Feb 20, 2022 8:17 pm
Forum: Guitar Amplifiers
Topic: ValveKing II 50 Combo - Noise Issues
Replies: 14
Views: 3524

Re: ValveKing II 50 Combo - Noise Issues

studiodk5, hey thanks for the pictures. That pc board looks great. Beautifully laid out, nice green solder mask, lots of real estate, large ground planes, wide straight etched traces connecting different areas of the circuit. All the components look like their marked with their schematic component i...
by rogue777
Thu Feb 10, 2022 11:48 pm
Forum: Guitar Amplifiers
Topic: Silver Stripe Bandit Excessive White Noise
Replies: 28
Views: 5333

Re: Silver Stripe Bandit Excessive White Noise

Check that cap C37 (2.2ufd) in the emitter circuit of Q17, that could be effecting the current.
I believe Enzo mentioned they might be high failure rate items.
by rogue777
Sat Dec 11, 2021 12:00 pm
Forum: Guitar Amplifiers
Topic: Resurrecting the Wall of Rage
Replies: 2
Views: 1546

Re: Resurrecting the Wall of Rage

As I understand it your 2x2 amp set up would be 4 Peavey Rage amplifiers. I had to look up a Peavey Rage. There was the Rage, the 158 and the 258. Theres some guy on uTube that had a wall of Rage with 6 Rages. https://www.youtube.com/watch?v=ZPGgIDIQzpk There seems to be a bunch of advice on the int...
by rogue777
Wed Oct 20, 2021 11:53 pm
Forum: Vypyr & Sanpera
Topic: Peavey VYPYR 2 instrument channels presets
Replies: 3
Views: 2738

Re: Peavey VYPYR 2 instrument channels presets

Lets say the problem is that button B broke, it lost its click. The schematic says it switch S17. Peavey part: 31322542 Description: vertical tact switch 6x6mm Contact Peavey and see if you can buy the part. That will determine if you can try the repair yourself. http://zorkmids.com/Download/Vypyr_V...
by rogue777
Mon Oct 18, 2021 1:18 pm
Forum: Guitar Amplifiers
Topic: Valveking 212 has no sound when fx loop on
Replies: 10
Views: 2694

Re: Valveking 212 has no sound when fx loop on

I tried to lookup info about your effects loop mod, ultimate-guitar mods but I couldn't find anything. So I don't really understand what your doing. >>>>>>>>>>>>>>>>>>>>>>> Thats good, you plugged your guitar into the "return" input and got sound. That means the problem is in the "send" signal. And ...
by rogue777
Sat Oct 09, 2021 6:51 pm
Forum: Guitar Amplifiers
Topic: Valve king II 20 combo clean channel distorted
Replies: 15
Views: 8386

Re: Valve king II 20 combo clean channel distorted

I don't care for that shops response. Perhaps Peavey can give you a reasonable repair.
by rogue777
Tue Oct 05, 2021 4:07 pm
Forum: Guitar Amplifiers
Topic: Valveking 212 has no sound when fx loop on
Replies: 10
Views: 2694

Re: Valveking 212 has no sound when fx loop on

C139 should not be loose. Both legs of the component should be soldered in its place in the PC bd. When you put a signal into the Return jack, the voltage is developed across R176 (3.9M ohms) and then the signal goes thru C139 and on to the Power Amp, connector P301/311 pin2. So Yes, R176 and C139 a...
by rogue777
Mon Oct 04, 2021 6:09 pm
Forum: Guitar Amplifiers
Topic: Valveking 212 has no sound when fx loop on
Replies: 10
Views: 2694

Re: Valveking 212 has no sound when fx loop on

The normal internal signal (labeled sig) goes thru R166 and out through C139. The FX loop is not enabled until there is something plugged into the Return jack breaking the connection at J115. Q102 is only used to send a signal out the Send jack.
by rogue777
Sat Aug 14, 2021 9:26 pm
Forum: Vypyr & Sanpera
Topic: Vypyr Pro volume cutting out
Replies: 3
Views: 4334

Re: Vypyr Pro volume cutting out

Since you turned the control and the volume jumped back, perhaps its the same as this:

viewtopic.php?t=41287
by rogue777
Sat Aug 14, 2021 6:55 pm
Forum: Guitar Amplifiers
Topic: Valve king II 20 combo clean channel distorted
Replies: 15
Views: 8386

Re: Valve king II 20 combo clean channel distorted

Look at the schematic. I think the stacked Mosfets are used as switches. Use some circuit analyses, maybe with the help of a voltmeter to determine which switch is off or on by measuring the gate voltage. Once you figure how the circuit works, you'll be able to fix your problem.
by rogue777
Fri Jun 18, 2021 6:15 pm
Forum: Vypyr & Sanpera
Topic: Help with Peavey Vypyr VIP-2 - Power supply issue (?)
Replies: 2
Views: 3536

Re: Help with Peavey Vypyr VIP-2 - Power supply issue (?)

Does a factory reset help? See additional info under the vypyr forum. Could be a pwr supply issue or something else. I'd work with Peavey customer support. I'd like to think there are procedures for product support. You've had the amp for a year and a half. The warranty is good for two years. Its un...