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strange sound at end on samples

January 17 2008 at 1:51 PM
Anonymous  (no login)

 
Hi,
I think my asr-10's got sum sorta problem with its analogue board or jack board....when i load instruments (original ensoniq instruments) at the end of every note there is a quiet squeeky/ kinda distortion sound...dont know how to fix it and its really p*ssin me off so any help would be appreciated...

 
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AuthorReply

(Login bolodanger)

Re: strange sound at end on samples

January 20 2008, 6:07 AM 

Hi, i think you should change the start and the end of the loop of the instruments.

 
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Anonymous
(no login)

Re: strange sound at end on samples

January 20 2008, 12:14 PM 

thanx for the help but its at the end onf every sound coming from the asr-10...even all the ensoniq instruments...so i think its a problem with the analoge board or the analogue jack board, i just dont dont know which one...and i was wondering if any1 else ever had this problem

 
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(no login)

Same Problem

March 17 2008, 8:48 AM 

Yes - I have exactly the same problem.

It's with every instrument loaded (even with FX bus on dry!).

It's only the left audio bus it seems, but it's pretty unusable while it's in this condition.

If it's been turned off for a while, it's ok to start with but then the problem kicks in and stays there.

I'm doing some research to find what the problem is (and possibly someone to repair here in Brisbane, Australia).

I'm not sure of my chances however, as the company's disolved and parts / repairers are hard to find!

Please let me know if you have found a solution.

 
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(no login)

Re: Same Problem

March 17 2008, 11:16 AM 

ive noticed this a few times as well.

i also have really bad pop and click sounds at the starts of my samples, if it was a loud part. which it usually is.

 
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(no login)

SOLUTION!

April 1 2008, 1:08 AM 

I've found the problem to be a faulty DAC on the analogue board.

Thesoniq have got one in the states (the whole board!) for $160USD + shipping. I've got the keyboard in with a specialist at the moment who's trying to source the faulty DAC (TDA1541A) but he' struggling as this has also gone out of production as well....

Will let you know the result.

 
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(no login)

Sorted!

April 3 2008, 5:04 PM 

OK - the upshot of my distorion woes are as follows.

I managed to find a ASR-10 Service Manual in PDF on-line. This listed the distortion problem as being 1 of 4 common problems the ASR inherits over time. Their solution is basically to replace the analogue board (easier done 10 years ago when they were still around!).

After an hour's labour with a music tech. repair place, they have diagnosed a faulty Digital to Analogue converter (TDA1541A - Phillips). As these Stereo DAC's are no longer made anymore we could not source ANY in Australia.

I was about to order a 2nd hand spare analogue board from the US (Thesoniq - $160US / E-bay also had a guy selling 2 x boards for $35US!!). Then had a brainwave of an idea that my OEX-6 output expander may have the very same DAC we needed.

Sure enough, I found it not only had one, BUT THREE of the very same TDA1541A DAC's that I needed!

My tech. shop is now busy with the soldering iron swapping out DAC's and I will have my ASR back today - good as the condition I bought her in 15 years ago

 
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(Login mattyd007)

BAD NEWS :(

April 3 2008, 11:20 PM 



He replaced the 'suspect' DAC with a working one from the OEX-6 and the problem still remains.

He suggested it's now not an Analogue Board as we first thought, but possibly a corrupt signal that the main board is giving out.

Will advise next step.... (stuck for now!)

 
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(Login mattyd007)

Re: BAD NEWS :(

January 22 2013, 7:07 PM 

Well another 4 years down the track and I fired up my beloved ASR last night.

Everything sounds beautiful for the first 10 mins, then it seems something 'warms up' and the distortion in the LH channel is back sad.gif

Surprisingly I've actually found TWO mint condition ASR-10 (keyboards) for sale in my home town (Brisbane, Australia) but I really don't want to fork out $1000 just to fix a board problem (not that I know WHICH bloody board it is).

The only source for ASR boards I could find is:http://www.syntaur.com/asr_parts.html

Thesoniq don't list (m)any boards that I could see anymore. I think they are becoming a rare beast.

Anyone else found a solution to this yet?

Cheers,

Matt

 
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(no login)

ensoniq unit.

May 25 2008, 10:27 PM 

if you need to fix your ensoniq asr-10 unit please callat 408-829-0713 or check on this web site www.thesoniq.com

 
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Ashley B
(no login)

Re: strange sound at end on samples

May 5 2008, 11:50 AM 

I don't know how you jumped to your conclusion that it's the analog board??
More likely to be the digital board based on your description, that's IF it IS a board problem at all.

 
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(Login mattyd007)

Put on the back burner,

February 16 2009, 11:36 PM 

I have not progressed any further with my distortion problem in the LH channel.

The reason it's in the too hard basket is due to my location (Brisbane, Australia). I would happily drop it into Thesoniq if were on the East Coast....in OZ!

But shipping a 40kg keybaord & flight case makes this highly impracticle. Also If I ordered a spare digital board from the US and found it's still doesn't fix the problem, then I've just wasted several hundred I could've bought a 2nd hand unit for that!

I'm now trying to source a seller in Australia now. At least I can swap the boards between the rackmount to the keyboard depending on what I find.

 
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(Login mattyd007)

Rack use same boards?

February 19 2009, 12:05 AM 

OK - after a quick search on Google I found someone selling a working ASR in 'excellent' condition. He also lives in Brisbane!

QUESTION: Can I use the boards out of the rackmount ASR to replace any 'suspect' boards on my ASR keyboard?

I may even use the ASR as a rack only (and leave my keyboard packed away). But I would like to swap boards so I can find out which is the faulty one causing the distortion.....

 
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(Login mattyd007)

Re: Rack use same boards?

January 22 2013, 7:08 PM 

woops - responded above in wrong order:


Well another 4 years down the track and I fired up my beloved ASR last night.

Everything sounds beautiful for the first 10 mins, then it seems something 'warms up' and the distortion in the LH channel is back

Surprisingly I've actually found TWO mint condition ASR-10 (keyboards) for sale in my home town (Brisbane, Australia) but I really don't want to fork out $1000 just to fix a board problem (not that I know WHICH bloody board it is).

The only source for ASR boards I could find ishttp://www.syntaur.com/asr_parts.html

Thesoniq don't list (m)any boards that I could see anymore. I think they are becoming a rare beast.

Anyone else found a solution to this yet?

Cheers,

Matt

 
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(no login)

Re: strange sound at end on samples

January 22 2013, 8:29 PM 

The solution or posible solution for this strange sound at the end of playing a wave sample of an instrument in the ASR 10 is high volume in the main bar VS low volume for each wave samples in the instrument loaded. Try or follow this:

Copy from the instrument loaded with the problem, some wave samples to a flopy disk for a test.

For each wave samples copied, boost or encrease the volume. Go to the manual how edit wave sample volume - no instrument volume remenber that is wave sample volume . Play the new volume vertion. If the strange sound no desapear,return again to increase more volume to all wave samples. If this solve the problem, change volume to all wave samples in the total instruments that has the problem. GOOD LUCK .

When I pass instruments from my old Ensonig EPS to the ASR 10 I had that problem and and solved it.

 
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(Login mattyd007)

Re: strange sound at end on samples

January 22 2013, 11:47 PM 

Thanks for the suggestion Ivan.

Unfortunately for me it affects my entire library of samples as well as all the original diskette instruments from Ensoniq.

The issue is only on the left bus, right bus is all ok and clean.

I've tried to eliminate every possible cause (incl removing SCSI device, using headphones etc. But it is happening and all audio buses incl dry - for the left side.

Thanks

Matt

 
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(Login mattyd007)

SOLVED!!

April 7 2013, 9:44 PM 

SOLVED!

After 5+ years of distorted left outs on every sample, my problem from 2008 is now FIXED!

I now have my ASR keyboard working 100% again with crystal clear stereo!

I ordered an analog board from a rack ASR that worked beautifully (it has an extra headphone out terminal on the board that you don't use, but no difference otherwise).

Thanks to Sam at Syntaur for the trade on my OEX6 and for all the email updates.

One happy ASR veteran is now back on track

Matt

 
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