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 16th November 2009, 11:36 AM   #13531
grofus is offline grofus  England
diyAudio Member
 
Join Date: Nov 2009
Location: Stevenage
Default No Display

Quote:
Originally Posted by 6h5c View Post
Hi Steve,

You can check if the negative display voltage is present at Q851. It should have about -24V at the output.

Ray
Ray,
Measured voltage at Q851 was -0.61v. I'm guessing a broken track or dry joint around the diodes. I measured voltage across the diodes and got no reading on a couple.
Steve
  Reply With Quote
Old 17th November 2009, 10:45 PM   #13532
diyAudio Member
 
Join Date: Oct 2009
Default Steve

Hi,

Can anyone help please! Just replaced a pair of op amps and wired in a shielded power cable and put everything back together. Now my player spins a disc but does not recognise a disc.

Help please,

Steve
  Reply With Quote
Old 17th November 2009, 11:36 PM   #13533
diyAudio Member
 
Malefoda's Avatar
 
Join Date: Jun 2006
Send a message via MSN to Malefoda
I say gently replace well the small ribbon cable from mech to main PCB. Hope for you it's only that
__________________
QED T260, Thorens TD-318, Marantz CD-43, TK2050, JBL 4313B & MJK's OB: music!
  Reply With Quote
Old 18th November 2009, 06:18 AM   #13534
6h5c is offline 6h5c  Netherlands
One Seriously Addicted to Audio and Electronics
diyAudio Member
 
6h5c's Avatar
 
Join Date: Apr 2004
Location: Heerhugowaard
Quote:
Originally Posted by grofus View Post
Ray,
Measured voltage at Q851 was -0.61v. I'm guessing a broken track or dry joint around the diodes. I measured voltage across the diodes and got no reading on a couple.
Steve
Hi Steve,

Hope it's a small problem. You should sort out the negative input voltage to Q851 first. The problem with these boards is, they sit in the player untouched for years, and after tweaking the trouble starts...

Ray
__________________
Gonna buy my little girl a pink soldering-iron
The new DOS-CFP board is out!
  Reply With Quote
Old 18th November 2009, 11:35 AM   #13535
grofus is offline grofus  England
diyAudio Member
 
Join Date: Nov 2009
Location: Stevenage
Quote:
Originally Posted by 6h5c View Post
Hi Steve,

Hope it's a small problem. You should sort out the negative input voltage to Q851 first. The problem with these boards is, they sit in the player untouched for years, and after tweaking the trouble starts...

Ray
Right, got -17.5v at Q851. Broken tracks. But still no display. To be honest, although i'm learning fast, I think it's beyond me. Seemed to have hit a brick wall. For some reason, no voltage across D814, and both DN03/04. Any ideas! cheers, Steve
  Reply With Quote
Old 18th November 2009, 11:17 PM   #13536
diyAudio Member
 
Join Date: Oct 2009
Default Steve

Hi all,

just got error 10 in service mode (radial), not sure what this means. Can anyone offer any ideas? Could it be related to swapping opamps.

thanks

Steve
  Reply With Quote
Old 19th November 2009, 04:40 AM   #13537
flyboi is offline flyboi  Malaysia
diyAudio Member
 
Join Date: Dec 2004
Location: .
Send a message via ICQ to flyboi
Hi guys!

I've done the bessel filter mod as per the modded list. I've come across the Mauro Penasa's filter tweak. If I add the Mauro's tweak, will it upset the bessel filter frequency curve? Or is it another must do list?

Eddy.
  Reply With Quote
Old 19th November 2009, 08:00 AM   #13538
diyAudio Member
 
Fidelity Audio's Avatar
 
Join Date: Dec 2005
Location: Doncaster England
Quote:
Originally Posted by stevief198 View Post
Hi all,

just got error 10 in service mode (radial), not sure what this means. Can anyone offer any ideas? Could it be related to swapping opamps.

thanks

Steve
Error 10 is a radial error. Nothing to do with output. The output should never have any baring on the service mode codes as it is an independant circuit from the servo, decoder, dac & cpu data loop.

Brent
  Reply With Quote
Old 19th November 2009, 10:29 AM   #13539
SimontY is offline SimontY  United Kingdom
diyAudio Member
 
SimontY's Avatar
 
Join Date: May 2003
Location: Sheffield, North England
Send a message via MSN to SimontY
Quote:
Originally Posted by stevief198 View Post
Hi all,

just got error 10 in service mode (radial), not sure what this means. Can anyone offer any ideas? Could it be related to swapping opamps.

thanks

Steve
You'll probably have disturbed one of the two ribbon cables or a 5V rail. Measure for +5V at each chip (servo, decoder, DAC) and lightly fettle the ribbon from the transport to the main pcb whilst the player's on and see if you can get a response. To check the front ribbon - unplug it and turn the player on - it should read and play the disc, only with no display or controls.

Simon
  Reply With Quote
Old 19th November 2009, 11:20 AM   #13540
RCruz is offline RCruz  Switzerland
diyAudio Member
 
RCruz's Avatar
 
Join Date: Sep 2006
Location: Wallis
Blog Entries: 1
The ribbon from the mech to the main pcb is very fragile and once gave me error 10 also.
  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



New To Site? Need Help?

All times are GMT. The time now is 04:47 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