Kove Audio ZD2000V amplifier schematic? - Page 2 - diyAudio
Go Back   Home > Forums > General Interest > Car Audio

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 10th September 2012, 12:20 AM   #11
diyAudio Member
 
Join Date: Nov 2003
Location: Louisiana
Post a photo of those two ICs and the components immediately around them. It needs to be as clear as possible. Use a real digital camera if you have one.
  Reply With Quote
Old 10th September 2012, 01:46 PM   #12
diyAudio Member
 
Join Date: Sep 2012
Here are three more shots of the board. I tried to get two different angles of the chip set and then also one half of the FETs. Hopefully they are good enough was having a hard time with lighting.
Attached Images
File Type: jpg amp board5.jpg (297.9 KB, 71 views)
File Type: jpg amp board6.jpg (322.9 KB, 66 views)
File Type: jpg amp board7.jpg (269.8 KB, 64 views)
  Reply With Quote
Old 11th September 2012, 10:50 AM   #13
diyAudio Member
 
Join Date: Nov 2003
Location: Louisiana
I was hoping to find a schematic diagram close to the circuit in this amp but with the voltages you posted, none that I have appear to be similar. Do you have a digital camera that will take better photos? If no one else can help, I'd need better photos, including at least one good one of the bottom of the board for the around the KA7500 and LM393.
  Reply With Quote
Old 13th September 2012, 01:08 AM   #14
diyAudio Member
 
Join Date: Sep 2012
Had an eventfull day. Lighting cooperated so think I got some good pics. Desoldered as many resistors and diodes that I could get to and tested. Everything so far is in tolerances and diodes working properly. Got a few capacitors pulled and getting them tested tomorrow afternoon. This is really turning into an unusual error as haven't been able to find a fault yet.
The pictures are in order of placement on the board. Both top and underside. I labeled the picture overlap.
Attached Images
File Type: jpg close1.jpg (306.8 KB, 50 views)
File Type: jpg close2.jpg (323.8 KB, 51 views)
File Type: jpg close3.jpg (266.1 KB, 32 views)
File Type: jpg close4.jpg (289.2 KB, 21 views)
  Reply With Quote
Old 13th September 2012, 07:10 AM   #15
diyAudio Member
 
Join Date: Nov 2003
Location: Louisiana
Are there two diodes with their anodes (end without the black band) connected to pins 1 and 7 of the LM393?

If so, do the cathodes of those diodes connect to pin 1 of the KA7500?
  Reply With Quote
Old 13th September 2012, 08:01 PM   #16
diyAudio Member
 
Join Date: Sep 2012
pin 1 of the LM393 goes to the cathode side of D31
pin 7 of the LM393 goes to R90, R115, and anode side of D21

pin 1 of the KA7500 goes to R91
R91 goes to R93 which goes to pin 4 of the KA7500
  Reply With Quote
Old 14th September 2012, 01:43 PM   #17
diyAudio Member
 
Join Date: Nov 2003
Location: Louisiana
This is going to be too time consuming to do this way since it seems to be significantly different than most of the common amps. Have you tried to get the diagram from Kove?
  Reply With Quote
Old 16th September 2012, 02:03 PM   #18
diyAudio Member
 
Join Date: Sep 2012
Yeah the company moved to Germany. I tried the last american contact for the company but that site has been idle for years. I got a few more components tested with no new results so put everything back together and put the amp away. Got other projects to work on anyways. Thanks for the help.
  Reply With Quote
Old 25th October 2012, 05:37 PM   #19
diyAudio Member
 
Join Date: Apr 2012
US Amps owned them for a short while after Kove went under
  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
Audio analogue puccini amplifier schematic supernet Solid State 2 27th December 2012 08:28 PM
info on 15" kove audio? xaee Subwoofers 2 6th December 2011 01:47 AM
Schematic: Audio Innovations, The first audio amplifier maartentje Tubes / Valves 22 25th February 2010 06:34 AM
Cambridge audio A5 integrated amplifier schematic cahillj Solid State 1 11th April 2009 01:54 AM


New To Site? Need Help?

All times are GMT. The time now is 07:29 PM.


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