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Kurzweil pc88 manual

Loved my PC88 until one note became loud. I carefully followed your video to clean the contacts. I reinserted them in the correct order. Now I have 8 dead notes - starting at Middle C# up to G#. Thinking that this was a pickup problem, I bought a new contact strip and replaced the middle C octave. Still no change. (Oddly, middle C and the last 3 notes of the octave - A, A#,and B do work) What would cause 8 notes within the octave to suddenly stop working? Would appreciate any help you can give me.

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6 Suggested Answers

6ya6ya
  • 2 Answers

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Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
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the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
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Posted on Jan 02, 2017

ginko
  • 19396 Answers

SOURCE: Electone organ. G above middle

Yamaha provides a complete and efficient support service online. Use this link to get support online from yamahatechnicians.

If you write to this address you will get a Yamaha tech working at your case

regards

Posted on Mar 07, 2008

SOURCE: Yamaha B5CR organ... 3 notes in

Open up the top cover and check the tone generators (12 little black "barrels"). There are 12 generators in total, one for each note in all octaves. Try to adjust trimpots on the generators.

Posted on Jun 10, 2008

  • 23 Answers

SOURCE: Video thru Onkyo TX-RS606 is only black&white

are you using HDMI cables or component. First I would try unplugging the composite and component video cables while the receiver is off. Plug them back in and turn it back on. If that does'nt work try setting the receiver to factory default and redo the settings. You can find how to reset to default in your user manual.

Posted on Apr 24, 2009

petraman7
  • 1175 Answers

SOURCE: My Casio WK-3000 works perfectly

You will have to have someone open up the keyboard and check that the flex-cables from the keys are all connected to the main circuit board

Posted on Aug 17, 2010

  • 3247 Answers

SOURCE: I have an Onkyo TX-SR703

First try to set the receiver to factory default setting if you have not already done so.

To reset the AV receiver to its factory defaults, turn

it on and, while holding down the [VIDEO 1] button,

press the [STANDBY/ON] button. "Clear" will

appear on the display and the AV receiver will enter

Standby mode.


If this does not help then the protection circuit has a component or fuse failure.


You will have to download a Service manual to find the correct part and location. This will cost you a little but atleast if you do not have a warranty it will be handy. By the way are you aware that Onkyo offers 3 years warranty on the receivers. Not sure if your model is that old.


Posted on Nov 28, 2010

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1 Answer

I am looking for a manual for the Kurzweil Reader Model 7315-60.


Your best bet would be to contact Kurzweil Customer Service directly.Here isa link to their Support page-
Kurzweil Education

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I have a Kurzweil pc88. The unit function but the power board 7805 voltage regulator overheats and eventually shuts down after 7-8 minutes. All else appears functional. Any suggestions?


Try changing out regulator . Check voltage output and resistors are a good culprit in these cases. Are you sure the rectifiers are doing there job ?

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Could you list any (probably) keyboard internal problems that would cause the fuse in the adaptor to blow, in a PC88MX (yes it's 20 years old *L*). The original fuse blew a couple of weeks ago, after


The unit uses a 9.5V AC (at 2A) 'step down' transformer, its doubtful you will be able to replace it with anything modern (as most things are DC, not AC nowadays).
However, you may be lucky and find a similar one in a junk shop or flea market type place, anything in the range 9 - 10V AC and NOT DC should be fine, as long as its at LEAST 2A (or 2000mA), not below, although something at 1.8A might work.
Just splice the leads (doesn't matter which way as its AC) onto the old plug from the damaged unit, just make sure the leads stay apart!
Any decent electrical engineer or advanced electrician should be able to do this (properly!) or fix the unit.
That's the simplest fix.
Splicing good leads for damaged is another option, both sides are AC so it doesn't matter which wire goes to what, unless you are in the UK and the unit is earthed of course.
If the unit is intact and some of the lead is OK both sides, a terminal block connected close to the first break, nearest the transformer can eliminate the broken bit. If its damaged on the actual unit, unless you have someone that can get inside and rewire it (best option), you are looking for a replacement.
http://kurzweil.com/content/migration/downloads/pub/Kurzweil/Pro_Products/Other_Pro_Products/PC88/PC88_MusiciansGuide.zip

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Hi, my key F3 (Fmin) has nonfunctional dynamic on my Kurzweil SP2XS. It is still in full loud, only when I really use minimum press - it is quiet (undertone - pianissimo). I never strike on this key more...


The keys have TWO contacts. One closes before the other as you press the key. The processor in the piano MEASURES the time it takes between these closures and uses that as a "key velocity" which is used to control the loudness much like an acoustic piano. When one of the two contacts associated with that key fails, then the key velocity is set to MAXIMUM. The actual failure of the contact can be MECHANICAL or just contamination. The contacts are actually CONDUCTIVE RUBBER "pills" that are pressed onto circuit board traces to complete the circuit when the key presses down on them. The pills are usually in flexible silicone rubber "domes" that also act as springs to help restore the keys when released. Accessing these contacts to clean them is NOT for the DIY person normally. One cleans the pills AND the circuit board GENTLY with 99% isoprophyl alcohol and Q Tips cotton swabs. Opening the piano takes great care and is best left to a repair shop unless one is electronically adept.

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Hi. We have a Kurzweil PC88 keyboard and one of the keys doesnt work. Should I take it apart and check it out????


Is it still under warranty? If so, get it fixed free. Otherwise, carefully take it apart. Once you get it apart, do you know what you're looking for? If not, have an electronics whiz sitting next to you when you do this.

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2 Answers

Error - cartridge incorrect


Check to see if the installed cartridge is the correct one for the printer. If the cartridge is the proper part number, remove the ink cartridge and make sure all the packaging tape has been removed from the copper circuitry strip on the backside of the cartridge. Reinsert the cartridge and try printing again.
If the error continues, remove the cartridge again and clean the copper circuitry strip on the backside of the cartridge, and the contacts inside the printer, by following the instructions below:
1. Use a clean, dry, soft, lint-free cloth. Locate the copper-colored circuitry strip on the back of the cartridge.
2. Wipe the copper-colored strip with the dry cloth. Use an upward motion, from the nozzle end to the top of the cartridge. Do not wipe the nozzle end of the cartridge or touch the nozzle plate. Wipe the contacts only once.
3. To clean the printer contacts, carefully look for fibers or contamination on the electrical contacts inside the carriage assembly, but do not wipe the printer contacts with any object. The contacts in the printer can be damaged if too much pressure is applied during a wiping process. Try to remove any visible attached debris within the carriage assembly by gently pulling the debris off with your fingers. If the carriage contacts show noticeable damage, contact the HP Customer Care Center listed in the printer's User's Guide.
Reinsert the cartridge and try printing again. If the error continues, the cartridge may need to be replaced.
Hope this helps. Please rate my response.
Thanks.
Have a good day.

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