Nakamichi OMS-7/Kyocera DA-910 intermitent output. any ideas? - diyAudio
Go Back   Home > Forums > Source & Line > Digital Source
Home Forums Rules Articles diyAudio Store Gallery Wiki Blogs Register Donations FAQ Calendar Search Today's Posts Mark Forums Read

Digital Source Digital Players and Recorders: CD , SACD , Tape, Memory Card, 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 8th August 2010, 12:31 AM   #1
diyAudio Member
Join Date: Jul 2004
Location: us
Default Nakamichi OMS-7/Kyocera DA-910 intermitent output. any ideas?

Just picked up a very clean Kyocera DA-910 , which is basically a Nakamichi OMS-7 in a fancy case. Some p/s upgrades , but same dac board; dual TDA-1540's. Also a similiar , but potted , output circuit. I changed the belt on the transport and it seems to read most of my cd's very well; just some problems with the rough ones. About a half hour of being proud of myself for fixing it so easily , the right channel became distorted and eventually muted. Since I have another dac board from an OMS-5 , I swapped it out. Played fine for 15 minutes , then the same issue. My guess is the output board is the problem , but it seems to work again if I unplug the power to it , with cd playing , and reconnect it. But only for a short time. Anyone familiar with these(Nak/Kyo)?
  Reply With Quote
Old 8th August 2010, 04:03 AM   #2
diyAudio Member
Join Date: Oct 2006
Sadly, you have the classic symptom of a failure within that sealed output module. On the Nak OMS-7, this is a repairable circuit, but the DA-910 has the whole thing potted in epoxy or tar(can't recall which). Your only option is to either build a new output stage of some design, or replicate/steal the output stage of an OMS-7. If the potting material is tar or something else not too high temp, you might be able to bake it out, but I've never tried that on one of those.
  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
Nakamichi OMS-5 gaborbela Digital Source 122 25th August 2012 09:11 PM
Nice Kyocera DA-610 CD Player! $75 OBO adowd Swap Meet 0 26th June 2010 06:43 PM
Kyocera DA-310cx needed tray belt and instructions Bhu108 Digital Source 0 10th May 2009 09:47 PM
Service Manual for Kyocera PL-910 or PL-901 amsci99 Analogue Source 0 28th October 2006 10:13 PM

New To Site? Need Help?

All times are GMT. The time now is 04:25 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