Perpetual Technology P-3a Modwright Signature II Help needed - diyAudio
Go Back   Home > Forums > Source & Line > Digital Line Level
Home Forums Rules Articles diyAudio Store Gallery Wiki Blogs Register Donations FAQ Calendar Search Today's Posts Mark Forums Read

Digital Line Level DACs, Digital Crossovers, Equalizers, etc.

Please consider donating to help us continue to serve you.

Ads on/off / Custom Title / More PMs / More album space / Advanced printing & mass image saving
Thread Tools Search this Thread
Old 9th February 2012, 08:20 AM   #1
bencat is offline bencat  United Kingdom
diyAudio Member
Join Date: Nov 2007
Default Perpetual Technology P-3a Modwright Signature II Help needed

Hello All

Please could anyone offer some help. I have just bought a second hand P-3a Modwright Signature II Dac which has a problem . The current owner says that when using the SPDIF input the digital signal will not lock. The current owner does not have a source with either AES/EBU or I2S so does not know if this is the same for these inputs as well.

Can anyone suggest a likely source of this problem . Simplest would be that there is a fault on the RCA SPDIF connector but worse case it could something on the curcuit itself. My own idea is that it would most likely be a problem with the Cirrus Logic digital input chip which would need to be replaced but if anyone has any experience of these units and has come across this problem before then please let me know.

Would also appreciate if anyone has a full schematic for this unit as this will help me to get replacement parts etc. Please also bear in mind that I am in the UK not the US so do not have access to some of the parts companies you would normally use.

Thanks in advance for any assistance.

  Reply With Quote
Old 9th February 2012, 11:49 PM   #2
hxt1 is offline hxt1  Canada
diyAudio Member
Join Date: Feb 2012
Email Dan Wright, he has been super helpful with my project. (I bought a used modwright platinum truth 999es, the transport died and Dan has been helping me utilize the tubestage and PS for another project)
  Reply With Quote
Old 10th February 2012, 08:26 AM   #3
bencat is offline bencat  United Kingdom
diyAudio Member
Join Date: Nov 2007

Thanks for the reply do you have an e-mail address for Dan . I visited their site and used the contact form but so far have had no answer . Did you contact him this way or do you have a direct e-mail ?
  Reply With Quote


Hide this!Advertise here!
Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

Similar Threads
Thread Thread Starter Forum Replies Last Post
Help needed for Marantz CD63 mkII KI Signature georgehifi Digital Source 12 23rd November 2012 04:15 PM
Dunlavy Signature VI info needed please lt cdr data Multi-Way 1 3rd May 2009 12:05 AM
Perpetual Technology P1A and P3A winslow Swap Meet 0 29th January 2009 06:51 AM
Manual for Tube Technology - Unisis Signature Ray Fish Tubes / Valves 0 26th January 2004 08:45 PM
Parts needed for 3A amp. project NerdMike Swap Meet 0 20th August 2002 01:25 AM

New To Site? Need Help?

All times are GMT. The time now is 02:09 AM.

vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2017 DragonByte Technologies Ltd.
Copyright 1999-2017 diyAudio

Content Relevant URLs by vBSEO 3.3.2