Looking for Parasound dac 1500 schematic

elviukai · 29th May 2006, 07:35 AM

having trouble with my parasound dac 1500

,anybody has or know where to download service manual with schematic? searched but with no luck .
thanks in advance..

rfbrw · 29th May 2006, 08:12 AM

If it is not significantly different, there is a pdf of the 1600. You may have to wade through a few posts to find it.
What is wrong with your dac ?

elviukai · 29th May 2006, 08:32 AM

hi, I have dac 1600 schematic and just printered it on A1 paper..

looks like it is diferent althought output stage is more or less tha same(i quess,regarding parts)

man.. no surprise that my parasound dac 1500(and prevously dac 1000) sound such a analogue turnable but with killed sound

I am not an digital expert but there are tons of feedback, tons of opams(16 opas in output section in both channles. no wonder why its provide 6.6V rms output) medium quality black gate f series caps and bunch(200 or so) of low quality film caps each shunted with smaller film caps. I havent ever see more complicated design- 3 trafo, 9 regulated suplies 110 000uf PS capasistance ..
the only thing I am thinking is to take off all theese things out and make pass labs d1 balanced output stage or maybe put sowter transformers.. I wish I have knowlwdges to do so..

the dac has changed trafo(with no good rails so two pole power suply has diferent + and - voltages) ,and one transitor was dead. and it was replaced by simple some no name. in balanced circuit!
I ordered sanken original back there but after looking inside I wonder will it help to improove sound..

dinoSnake · 12th July 2006, 01:44 AM

Are you aware of ASE Audiotuning?

http://www.audiotuning.de/english/index.html

They make upgrade kits for the Parasound DAC's, where they change out the SPDIF receiver and digital filter and claim a *huge* bonus in sound quality. They sell their upgrade "bundles" (the SPDIF/filter combo) sometimes on eBay under the name "www-audiotuning-de".

I just ordered a bundle to upgrade my own 1000 and look forward to receiving it soon. When you get your 1500 back on it's feet you may wish to give it a shot!

Good luck!

Vlad_LV · 14th October 2008, 01:12 PM

DAC 1500 shematics http://rapidshare.com/files/15385308...d_DAC_1500.zip

xaudiox · 14th October 2008, 01:56 PM

thanks..

29th May 2006, 07:35 AM	#1
elviukai diyAudio Member Join Date: Apr 2003 Location: EU- Electronic Union country	Looking for Parasound dac 1500 schematic having trouble with my parasound dac 1500 ,anybody has or know where to download service manual with schematic? searched but with no luck . thanks in advance.. __________________ natural sound reproduction from traditional dynamic drivers?!! come on.. no no, it can be.. it must be!..

29th May 2006, 08:32 AM	#3
elviukai diyAudio Member Join Date: Apr 2003 Location: EU- Electronic Union country	hi, I have dac 1600 schematic and just printered it on A1 paper.. looks like it is diferent althought output stage is more or less tha same(i quess,regarding parts) man.. no surprise that my parasound dac 1500(and prevously dac 1000) sound such a analogue turnable but with killed sound I am not an digital expert but there are tons of feedback, tons of opams(16 opas in output section in both channles. no wonder why its provide 6.6V rms output) medium quality black gate f series caps and bunch(200 or so) of low quality film caps each shunted with smaller film caps. I havent ever see more complicated design- 3 trafo, 9 regulated suplies 110 000uf PS capasistance .. the only thing I am thinking is to take off all theese things out and make pass labs d1 balanced output stage or maybe put sowter transformers.. I wish I have knowlwdges to do so.. the dac has changed trafo(with no good rails so two pole power suply has diferent + and - voltages) ,and one transitor was dead. and it was replaced by simple some no name. in balanced circuit! I ordered sanken original back there but after looking inside I wonder will it help to improove sound.. __________________ natural sound reproduction from traditional dynamic drivers?!! come on.. no no, it can be.. it must be!..

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29th May 2006, 08:12 AM	#2
rfbrw diyAudio Member Join Date: Oct 2001 Location: .	If it is not significantly different, there is a pdf of the 1600. You may have to wade through a few posts to find it. What is wrong with your dac ?

12th July 2006, 01:44 AM	#4
dinoSnake diyAudio Member Join Date: Jul 2006	Are you aware of ASE Audiotuning? http://www.audiotuning.de/english/index.html They make upgrade kits for the Parasound DAC's, where they change out the SPDIF receiver and digital filter and claim a huge bonus in sound quality. They sell their upgrade "bundles" (the SPDIF/filter combo) sometimes on eBay under the name "www-audiotuning-de". I just ordered a bundle to upgrade my own 1000 and look forward to receiving it soon. When you get your 1500 back on it's feet you may wish to give it a shot! Good luck!

14th October 2008, 01:12 PM	#5
Vlad_LV diyAudio Member Join Date: Oct 2008	DAC 1500 shematics http://rapidshare.com/files/15385308...d_DAC_1500.zip

14th October 2008, 01:56 PM	#6
xaudiox diyAudio Member Join Date: Jul 2006	thanks..

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