Ampire Class D monoblock troublehooting - 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 26th May 2013, 06:00 PM   #1
Mote is offline Mote  Estonia
diyAudio Member
 
Join Date: Jul 2010
Location: Estonia
Default Ampire Class D monoblock troublehooting

I bought this amplifier as broken. It powers up, does not draw current and does not go into protect. Relay clicks but there is no audio. All outputs and PS FETs seem to be fine. Rail voltages (+56V and -56V) are present on output transistors.

I suspect that the driver for outputs has failed but what that chip is I do not know. Numbers have been filed off. Next to it there is op amp which has voltages near rail voltage on every pin. Maybe its missing ground or it is blown? There is no rail to rail oscillation on outputs. Picture added of what I found on outputs.

Anyone know what the driver chip is? Any advice on troubleshooting?

BTW, where is Perry?
Attached Images
File Type: jpg DSC01285.jpg (598.0 KB, 89 views)
File Type: jpg DSC01287.JPG (579.5 KB, 85 views)
__________________
Tools: Perrys tutorial, C1-76 o-scope, Weller WHS40, Mastech MAS830L multimeter, Mastech MY6243 LC meter, 16A supply
  Reply With Quote
Old 26th May 2013, 07:43 PM   #2
timwebb is offline timwebb  United States
diyAudio Member
 
Join Date: Jan 2010
Location: memphis tn
what amp is this?
  Reply With Quote
Old 26th May 2013, 10:05 PM   #3
diyAudio Member
 
jeanious2011's Avatar
 
Join Date: Nov 2010
Location: Texas
U101 appears to be cracked....can you check it to see if it is or just the picture?
  Reply With Quote
Old 27th May 2013, 02:54 AM   #4
diyAudio Member
 
Join Date: Jun 2012
Im guessing from the pics That the Driver IC appears to be an IR2010
  Reply With Quote
Old 27th May 2013, 01:42 PM   #5
Mote is offline Mote  Estonia
diyAudio Member
 
Join Date: Jul 2010
Location: Estonia
Amp is Ampire MB 1000.1
Click the image to open in full size.

I believe that there is some goo on the U101 which makes it seem to be cracked. Will check it.

IR2010 seems to be right. 1st and 8th leg connected to outputs. That is what I have.

Thanks.
__________________
Tools: Perrys tutorial, C1-76 o-scope, Weller WHS40, Mastech MAS830L multimeter, Mastech MY6243 LC meter, 16A supply
  Reply With Quote
Old 10th July 2013, 05:06 PM   #6
Mote is offline Mote  Estonia
diyAudio Member
 
Join Date: Jul 2010
Location: Estonia
Replaced U101, U102 and U103 still now audio, now I get a loud bump from speaker when amp is shutting down.
Outputs are not shorted, power supply is working properly, amp does not draw excessive current.

Any advice?
__________________
Tools: Perrys tutorial, C1-76 o-scope, Weller WHS40, Mastech MAS830L multimeter, Mastech MY6243 LC meter, 16A supply
  Reply With Quote
Old 11th July 2013, 12:44 AM   #7
timwebb is offline timwebb  United States
diyAudio Member
 
Join Date: Jan 2010
Location: memphis tn
got pics of the preamp and output section?
  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
FS: AV123 X-amp class-D monoblock 150W power amp (CA,USA) CharlieLaub Swap Meet 0 24th April 2013 03:07 PM
Pure Reference Class A Monoblock tiefbassuebertr Solid State 16 5th January 2012 07:47 PM
RODEK r 1900 N D class monoblock kozik666 Class D 0 29th June 2010 03:35 PM
Want to build a Class D monoblock Car amp gexamb Class D 16 1st September 2009 07:42 PM
Class-A Monoblock Amplifier Chassis (qty 2) tstrafford Swap Meet 8 14th February 2009 05:19 PM


New To Site? Need Help?

All times are GMT. The time now is 01:51 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