Go Back   Home > Forums > >
Home Forums Rules Articles diyAudio Store Blogs Gallery Wiki Register Donations FAQ Calendar Search Today's Posts Mark Forums Read

Digital Source Digital Players and Recorders: CD , SACD , Tape, Memory Card, etc.

Problem with an Advance Acoustics MCD-203 CD-player
Problem with an Advance Acoustics MCD-203 CD-player
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 25th January 2014, 11:14 PM   #1
seppoa is offline seppoa  Sweden
diyAudio Member
Join Date: Feb 2013
Default Problem with an Advance Acoustics MCD-203 CD-player

Hello all,

Ive got an Advance Acoustics CD player type MCD-203. It is a well built player, with an analog output with tubes, designed in France and built in China. But the digital board, with the DAC and drive electronics seem to be very cheap, of the kind in cheap DVD-players, but this board dont have the components for the video signals equipped.

My problem is that there is a noise in the output when the mute disengages, regardless of signal when playing or in pause. The noise is maybe -40 dB, havnt had the possibility to measure it yet.

The DAC is an AD1853, and the electronics are of the type with a buffer, so the disc is spinned faster than a normal CD-player. At the moment Ive no access to my osciloscope, so I want to ask, if anybody may have an answer to what may cause the noise. I have reflowed the dac and main IC type MT1389QE. Maybe the buffer memory, a K4S641632H can cause this problem?

So if anybody can have a clue or answer, Id be very grateful. I have a good knowledge of electronics, and access to all needed tools at work, but dont want to start doing the faultfinding at my work, if you understand.

Thanks in advance,
Seppo from Sweden.
  Reply With Quote
Old 11th July 2018, 01:41 PM   #2
Family of Dog is offline Family of Dog
diyAudio Member
Join Date: Dec 2013
I know it's an old thread, but I can still help.
As an official service engineer for major brands (Advance Acoustic also) I got some service hints from the manifacturer.
Replace R39 and R41 on the digital board by 10 ohm SMD resistors.
I attached a picture to make it easier.
The noise should be much lower.
Hope it helps!
Attached Images
File Type: jpg IMG_20180711_143556.jpg (400.1 KB, 15 views)
  Reply With Quote


Problem with an Advance Acoustics MCD-203 CD-playerHide 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

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
CD player does not detect CD - pickup problem? cm Digital Source 18 22nd September 2017 07:52 AM
Advance acoustic MCD 203 terraX Digital Source 1 21st November 2014 11:07 AM
Advance Acoustic MCD 203 maudan Digital Source 2 20th February 2012 07:17 AM
original meridian mcd cd player problem audiolabtower Digital Source 5 21st January 2009 09:17 PM
Problem on SONY CD Player CDP-203 DeeGee Analogue Source 1 26th December 2003 09:23 PM

New To Site? Need Help?

All times are GMT. The time now is 03:15 PM.

Search Engine Optimisation provided by DragonByte SEO (Pro) - vBulletin Mods & Addons Copyright © 2019 DragonByte Technologies Ltd.
Resources saved on this page: MySQL 14.29%
vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2019 DragonByte Technologies Ltd.
Copyright ©1999-2019 diyAudio