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 6th June 2012, 04:04 PM   #1
D4N is offline D4N  United Kingdom
diyAudio Member
 
Join Date: Jun 2012
Default Alpine mrp-m1000 no sound

Hi, Im not getting any sound from my alpine mrp-m1000 amp. I bought this second hand around 4 months ago, tested it when I got it, fitted it to my car last week and had it working for about 2 hours in total over a few short journeys, then nothing. power light comes on and i can hear very quiet clicking sound from both subs.
I'm running 2x alpine swr 1242r subs (came with the amp)
I have checked all connections, tested rca leads, checked the total resistance of both subs which come to 4ohm at the amp terminals.
got good battery voltage, good earth and good remote.

Removed the amp from my car and took off the rear cover, havent tested anything inside yet as I'm new to this but I noticed one of the transistors seems to have got hot as the legs have a darkish tint to them compared to the rest (position Q4901, part number KDY 600K), the circuit board has a slight burnt smell too.

On looking in this forum it seems that a few people have had very similar problems but i'm not sure if they have managed to fix their amps as no-one has said it worked or not.

Has anyone got a service manual for this amp so I can possibly carry out some tests and get an idea of the figures I should expect to see? I may then be able to locate the failed part or parts and fix it before sending it to a repair centre.

My email address is dan66turner@yahoo.co.uk

look forward to any replies. thanks.
  Reply With Quote
Old 6th June 2012, 09:38 PM   #2
diyAudio Member
 
Join Date: Nov 2003
Location: Louisiana
This is one of the regulators. They tend to overheat and fail. You'll need to check it carefully out of the circuit if you don't find any other problems (shorted output transistors, blown power supply transistors...).

If you didn't email me earlier for the manual (I had another request for it), email me and I'll send it to you.
babin_perry@yahoo.com
  Reply With Quote
Old 7th June 2012, 06:53 PM   #3
D4N is offline D4N  United Kingdom
diyAudio Member
 
Join Date: Jun 2012
Thanks Perry, just emailed you now for it.
  Reply With Quote
Old 10th June 2012, 07:28 AM   #4
D4N is offline D4N  United Kingdom
diyAudio Member
 
Join Date: Jun 2012
Thanks for the service manual Perry,

On doing a couple of checks on various components, I'm not getting the readings stated in the manual.

I'm no electronics specialist and have no idea what has failed on this amp as I don't fully understand how these things work (I'm more of a mechanical person really)

Is there anyone who you guys could recommend in the U.K who would have a look at my amp for me and get it working?

I did speak to a local car audio repair centre but I got the feeling that unless it was something very simple like a blown fuse then they classed it as beyond repair and would recommend a new amp.
  Reply With Quote
Old 10th June 2012, 11:49 PM   #5
diyAudio Member
 
Join Date: Nov 2003
Location: Louisiana
http://www.amp-doctor.co.uk/
  Reply With Quote
Old 4th November 2013, 03:34 PM   #6
diyAudio Member
 
Join Date: Dec 2010
I have a similar problem with MRP-M1000 amplifier. Can I get a copy of the service manual.

Thanks
  Reply With Quote
Old 4th November 2013, 07:52 PM   #7
diyAudio Member
 
Join Date: Nov 2003
Location: Louisiana
You need to provide an email address.
  Reply With Quote
Old 4th November 2013, 11:51 PM   #8
diyAudio Member
 
Join Date: Dec 2010
my email is rafaelgallegos8@gmail.com
Thanks a lot for your response
  Reply With Quote
Old 5th November 2013, 04:04 PM   #9
diyAudio Member
 
Join Date: Jul 2004
Location: Devon
Hi,

Could you send me a copy too please:

croccy22@spvsoft.co.uk

Thanks, Matt.
  Reply With Quote
Old 5th November 2013, 04:05 PM   #10
diyAudio Member
 
Join Date: Jul 2004
Location: Devon
Hi,

Could you send me a copy too please.

croccy22@spvsoft.co.uk

thanks, Matt.
  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
alpine mrp-m1000 mike49504 Car Audio 47 17th June 2013 11:48 AM
Alpine MRP-M1000 no sound shaunober Class D 7 27th June 2011 05:25 PM
Alpine MRP-M1000 mike49504 Car Audio 20 4th June 2011 03:37 AM
Alpine MRP-M1000 mike49504 Car Audio 7 30th January 2011 09:57 PM
Alpine MRP-M1000 argonrepublic Car Audio 2 11th August 2009 02:28 PM


New To Site? Need Help?

All times are GMT. The time now is 04:06 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