Grundig CD 8400 MKII "DISC" - 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
Thread Tools Search this Thread
Old 8th June 2008, 03:57 PM   #1
ATRAC3 is offline ATRAC3  Macedonia
diyAudio Member
Join Date: Jun 2008
Send a message via MSN to ATRAC3
Default Grundig CD 8400 MKII "DISC"

I have a Grundig CD 8400 MKII and about a month ago the sound output went dead. I found that the TDA 1541A was dead. I replaced it with TDA 1541 without the "A" and also replaced the SAA 7220 to SAA 7220 P/A. It worked fine. But when i assembled the player i switched it on and it didn't wanted to read any disc. It displayed "DISC" on the display. I opened and i discovered that there was a desoldered wire from the laser to the main PCB. I soldered it and it worked. But when i closed it the same problem appeared. now i can't figure out what's the problem??? I discovered that the "LASER-SUPPLY" trimer isn't responding - when i turn it the laser beam is the same. And also when i leave the player all of the IC's are becoming hot except the one for the laser control TDA 5708. I downloaded the data sheet and it says that it should have VDD 8-12 V and VCC 8-12 V measured from PIN 15-2 and PIN 15-28 but from my measurements it has VDD 5.7 V and VCC 4.6 V. I can't figure out what went wrong and i cant find the fault??? Please help!
  Reply With Quote
Old 4th June 2011, 08:36 PM   #2
dady is offline dady  Europe
diyAudio Member
dady's Avatar
Join Date: Oct 2002
Location: Punta Prima, Menorca, Spain
Send a message via MSN to dady Send a message via Skype™ to dady
Download Manager
Esteban Bikic
  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
Harrison type "K4000" (K 4000) MKII 2x1000W/4ohm tiefbassuebertr Solid State 30 4th October 2015 02:59 PM
Sony SCD1 "no disc" problem negus73 Digital Source 17 23rd April 2015 10:11 AM
What makes an amplifier "bright", "warm", or "neutral"? JohnS Solid State 51 13th December 2009 06:42 PM
Camb. Aud. CD4SE "no Disc" not spinning Bert72 Digital Source 11 16th December 2005 08:44 AM
"No Disc" message Bert72 Digital Source 8 8th December 2005 04:58 PM

New To Site? Need Help?

All times are GMT. The time now is 11:05 AM.

vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2015 DragonByte Technologies Ltd.
Copyright 1999-2015 diyAudio

Content Relevant URLs by vBSEO 3.3.2