Removing the Muting Transistors of Sony CDP-690 - diyAudio
Go Back   Home > Forums > Source & Line > Digital Source

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
Reply
 
Thread Tools Search this Thread
Old 28th December 2009, 01:53 PM   #1
diyAudio Member
 
Join Date: Dec 2009
Default Removing the Muting Transistors of Sony CDP-690

Hi everybody.I need help of removing the mut.trans. where are they?how they look?and after removing what to do?Just switch on the CD player or need to connect the cutted wire ?
  Reply With Quote
Old 29th December 2009, 07:39 AM   #2
Mooly is offline Mooly  United Kingdom
diyAudio Moderator
 
Mooly's Avatar
 
Join Date: Sep 2007
They will be like this on the output of the final opamp and probably surface mounted too... this is from a Mini Disc recorder... but the set up will be similar.
Sometimes (occasionally) there are two transistors with a resistor inbetween to give a higher level of muting...
Just remove them... personally I don't believe it will make an audible difference... although many disagree You might "think" it does but "has" it. Probably much better to fit higher quality opamps (depending on whats fitted)
Attached Images
File Type: jpg Muting.JPG (59.0 KB, 92 views)
  Reply With Quote
Old 30th December 2009, 05:45 PM   #3
diyAudio Member
 
Join Date: Dec 2009
Thank you!You are right I removed them but there was no difference.This is my trying player so I sacrificed it
  Reply With Quote
Old 30th December 2009, 05:58 PM   #4
Mooly is offline Mooly  United Kingdom
diyAudio Moderator
 
Mooly's Avatar
 
Join Date: Sep 2007
Try different opamps...
  Reply With Quote
Old 30th December 2009, 10:29 PM   #5
diyAudio Member
 
Join Date: Dec 2009
what is opamp?
  Reply With Quote
Old 30th December 2009, 11:00 PM   #6
Banned
 
Join Date: Oct 2009
Quote:
Originally Posted by Xperience View Post
Hi everybody.I need help of removing the mut.trans. where are they?how they look?and after removing what to do?Just switch on the CD player or need to connect the cutted wire ?
I wouldn't do that... you risk ruining your player. The disadvantage may be significant...the advantage may not be.
  Reply With Quote
Old 30th December 2009, 11:00 PM   #7
Banned
 
Join Date: Oct 2009
Ouch, you already did it
  Reply With Quote

Reply


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
Removing muting transistors on Denon DCD-860 cvalk Digital Source 5 6th December 2009 06:52 PM
Sony CDP-337ESD v Sony CDP-X33ES which is best? eldarvanyar Digital Source 0 10th January 2008 11:04 AM
My Sony DTC-690 DAT Recorder richardsymes Digital Source 6 23rd July 2006 12:29 PM
Sony SCD-222ES Muting Transistors Question. spence Digital Source 1 27th June 2006 06:20 PM
Sony DTC-690 sunrise Everything Else 2 4th April 2006 10:57 AM


New To Site? Need Help?

All times are GMT. The time now is 03:52 AM.


vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2014 DragonByte Technologies Ltd.
Copyright 1999-2014 diyAudio

Content Relevant URLs by vBSEO 3.3.2