I have a Fender Cyber twin. WHen I turn the large preset selector knob, it flies through the presets. Sometimes if I turn it slow enough it will go through the presets in order, but other times it will skip three or four presets.
I can almost guarantee the interal contacts of the rotary selector have oxidized over time. Getting to that control is a real pain since several printed circuit boards must be moved to get at it. What i usually do isunpojug the amp, lay the amp on it's back, pull the plastic knob off of the rotary selector control shaft, fold over a paper towel about 6 thicknesses, punch a small hole through the center of the towel, place the towel over the shaft and push it down to the control face (this catches overspray) then spray Caig DeOxit DN5 between the shaft and the outer ring of the control. Let it soak in while you twirl the knob round and round, back and forth. This cleans the oxidation from the internal contacts. It may take a couple of squirts and lots of twirling but it should get the control back to proper operation. Barry
An expert who has achieved level 2 by getting 100 points
An expert that got 5 achievements.
An expert who has written 50 answers of more than 400 characters.
An expert whose answer got voted for 20 times.
Re: Cyber Twin selector knob.
The selector knob may be a potentiometer or a rotary impulse giver device. In any case, it looks like the internal contacts are either dirty or oxydized so the value is changing in an erratic way which causes the unit to skip several presets at a time.
It would require a skilled technician to disassemble and clean the controller (if it can be disassembled in the first place), otherwise you will probably need to replace the preset selector knob entirely.
There is nothing wrong and what you are seeing has nothing to do with a faulty control. The Cyber Twin Preset selector is a digital control that senses how fast you spin it. The idea is if you spin it faster the amp assumes you want to get to one of the hundreds of presets faster and it purposely "skips" blocks of presets until you stop or slow down the spin rate. If you turn it slowly it'll select one at a time in order. When in edit mode it'll do the same thing when you dial in effect values so just dial stufff in a little slower till you get the hang of it. It's a nice feature once you know what to expect.
- If you need clarification, ask it in the comment box above.
- Better answers use proper spelling and grammar.
- Provide details, support with references or personal experience.
Tell us some more! Your answer needs to include more details to help people.You can't post answers that contain an email address.Please enter a valid email address.The email address entered is already associated to an account.Login to postPlease use English characters only.
Tip: The max point reward for answering a question is 15.
This isn't much information to go on. I may can help if you could be more specific. What amp? Presets of what? What software? What noise gate? Where is this noise, amp output or pc input? A computer sound card can do weird things when musical equipment is plugged into it, some mice will do it, making noise when you move the mouse around. I'm guessing how you are set up, if you get back to me, I will try to help you further.
If unt was dropped, look for broken PC board in the vicinity of the rotary encoder. Also look at solder connections to make sure they are sound. A little contact cleaner applied to encoder through an opening so the spray gets inside will help clean contacts. If the knob itself is hard to turn, the shaft is likely bent, and there may be damage to the encoder itself.
Not sure of how it is feeding back. Two possibilities... the reverb tank in the cabinet is no longer shock mounted. The other is your guitar can "hear" the speaker... make sure you are away from the amp. With the reverb on, the feedback stability is less than with it off so make sure your guitar is away from the amp. Acoustic guitars are more sensitive to this than solid body ones.
From the manual... is THIS the proceedure you are using to save the settings?
T o SAVE:
1) Press the SAVE key once and a prompt displays the PLAYER’S
LOUNGE preset about to be replaced, (example prompt shown).
2) Rotate the DATA WHEEL to select a PLAYER’S LOUNGE preset to
overwrite with the currently active amp design
(last chance to press EXIT, cancelling the save).
3) Press the SAVE key a second time to complete the save.
First make sure you have the TRIM knob positioned correctly. When playing loud the Red Led should just blink a bit so you know you're not overloading the preamp and Digital sections. The Twin Reverb Patch is a clean place to start so select that first. On this amp it's a good idea to set the MASTER to 5 and use the VOLUME control at as low a setting as you can. The GAIN control should be set under 4. You better sound crystal clear on this setting. Try turning up the volume to see how loud you can get without breaking up. It's a guitar amp so there will be some grainy distortion but it should be very light. I bet you get through this test without much trouble. After that you need to be very careful about what settings you're using since many of the presets may not mesh with your guitar pickups. You should concentrate on tweaking one highgain setting and learn about how the controls interact. The amp is so much more complicated than a 10 knob standard guitar amp. Most people need to put in some time to get a handle on it.
As far as the tubes go, typically they can get microphonic which was a problem with versions 1.1 and 1.0 of this amp so check that. Fender had a Cyber twin upgrade kit way back to fix this but if you have version 1.2 or 1.3 that's not it. Problems with this amp are typically caused by control setting more often than an electronic problem but this reponse should get you started figuring it out.
Here is a test you can do at home for the sound. Test out the speaker. To do this you will need two alligator clips with wire about ft. long. Remove the speaker wire clips under the speaker magnet and attach the alligator clips . Take a C size battery and touch both ends of the battery. You should here a scratching sound . If you do you know your speaker is OK. Then you have a problem that needs a Technician. A good music shop should be able to give you a idea of the repair cost. Don't go to a big music change, find a small full service shop that deals with Fender. I don't think this will cost a lot. Fenders play for years, Its truly worth the bench fee. Good luck DFD , please rate me thanks