Hello

Can anyone help me.

I’m buying a used Zakkwylde ZW95 WHA pedal.

First of all, what’s wrong work looks good. I open it to look inside and measure with a multimeter, like a potentiometer. And I see that it is poorly calibrated, because with the wheel closed I read 105 kOhm, and with the full wheel 15 kOhm. open.

Criticism of the closingThe difference is that if he is completely open to it, he makes a lot of noise. It’s like having a preamp and picking up noise like antennas.

Any suggestions?

Hi Randy!

I have no reason to believe that adjusting the potentiometer on the pedal will almost certainly eliminate the hiss… it’s usually enough to just set the super value to Max point on scroll (and with the lowest price by default). The more you match our own high level, the louder we want it to be (hiss). .most people just use their ears, tune them up a bit and try the wah.

If families have a tone you really like and they say the hiss really bothers you, there are a few more tricks that may turn into Done.
You need to post a general wow diagram and we need to show you a few that might help you a little. But remember that it probably won’t be completely silent.

Use shielded cable for your signal outputs first and ground it last… and be careful when touching signal wires…

See if you can see the circuit from post… and maybe a related picture inside your pedal!

Okay, Randy… is there a couple of ways to do this here? First, consider which wire your wire is already grounded to! Otherwise it will be “BZZZZZZZZ” alt=”;)” src=”https://www.diystompboxes.com/smfforum/Smileys/default/wink.gif”>

1) If you ONLY use wah wah and your amp has warp, does this guy always make bad hiss? Use the last battery while making it… better? It MAY be an increase in interference by something else. If you take a good pencil eraserand lightly press directly on the board, on and on the connector assembly… something will happen (be careful). Something free might help you find it. They are SURE that they can be instrument cables and not auxiliary cables (huh, right? Ha, EU and ask). Yes,

2) There might be something else wrong inside the wah… a faulty capacitor might be causing the hiss. GCB-95 doesn’t look that complicated. I would then have to examine the sound file and try to figure out where the hiss starts after removing everything from the wah. Use any major search engine to see the chart above and follow it from entry to exit.

Ha ha, now youYou can’t smell the radio! If you put the back protector on, will it still work?

The crowd whistles as they pedal forward probably not I don’t mind… but the “mmmmmmmmmm” noise is what is it never missed? This is a lower frequency and therefore no hum. This is a functional indication of poor performance of power supply filters or close fluorescent lighting, a similar action that creates noise. If you’re near lights or anything, you need to put away your stuff (or turn off the lights immediately) and see when you can get that high. Put that skill back on the cover.

As for clicking noise, typing noise… Personally, I’d take the PCB off and put our own solder back into the input jack. This may be true, as is the output connector. Bad soldering could have caused that click and possibly the remote control (ok, that would be fine, but…).

Check that the 22 pF cap is properly soldered. This should bypass HF. Look at the solder joints of any input stage. If sparking continues (withm power supply…), I would put your 68 pF cap on the input of my terminals. This should not affect any other frequencies that may be transmitted to you (you will not know they are there). Is an aspect of fixing what’s going on. Better understand why.