Marantz PM66KI amp. - Page 2 - diyAudio
Go Back   Home > Forums > Amplifiers > Solid State

Solid State Talk all about solid state amplification.

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 3rd January 2006, 09:39 PM   #11
hotscot is offline hotscot  Scotland
diyAudio Member
 
Join Date: Aug 2004
Location: California
Default Schematics

Yup..pass on any info you guys need.

Alan
  Reply With Quote
Old 3rd January 2006, 09:41 PM   #12
Netlist is offline Netlist  Belgium
diyAudio Moderator Emeritus
 
Netlist's Avatar
 
Join Date: Jan 2003
Quote:
Originally posted by anatech

Can I see? Can I, can I, can I ? Please?
Hmmm...well...maybe...tomorrow

Thanks Alan.

/Hugo
  Reply With Quote
Old 3rd January 2006, 09:43 PM   #13
anatech is offline anatech  Canada
diyAudio Moderator
 
anatech's Avatar
 
Join Date: Jun 2004
Location: Georgetown, On
Hi Hugo,
  Reply With Quote
Old 3rd January 2006, 09:56 PM   #14
Netlist is offline Netlist  Belgium
diyAudio Moderator Emeritus
 
Netlist's Avatar
 
Join Date: Jan 2003
It's just that I have no access to the files at the moment.

/Hugo
  Reply With Quote
Old 3rd January 2006, 10:07 PM   #15
toman_9 is offline toman_9  Germany
diyAudio Member
 
Join Date: Jan 2006
Location: ...
Hi Alan,

I have got your e-mail, however hotmail doesn't want to send the e-mail ..too large... I shall try it tomorrow again.. BTW can you send me the KI schematics ?

Hi Hugo,
The PCB is OK. I do not think it is burned.

Hi Chris,
So what shall I do ?
At the moment the fuse goes off after couple of seconds, I though short circuit andI have already tested one transistor which I identified as faulty. So my next step is to change it (and also may be also its pair).
I know that the transistor was OK when I started the repair, it might have burned meanwhile ... ;-) dunno why..

I checked some resistors with a multimeter, and the values are all ok, same as what in manual says.
So what would be your advise for the next step ?
  Reply With Quote
Old 3rd January 2006, 10:19 PM   #16
Netlist is offline Netlist  Belgium
diyAudio Moderator Emeritus
 
Netlist's Avatar
 
Join Date: Jan 2003
I'll forward the manual tomorrow to both toman_9 and Chris.
Meanwhile, it's one of those PCB's that need a firm resoldering.
The two transistors IIRC, Q802 and Q803 are voltage regulators and could be broken. Desoldering the outputs is not a bad idea if they survived till now. If they didn't you will need to take them out anyway.

/Hugo
  Reply With Quote
Old 3rd January 2006, 10:23 PM   #17
anatech is offline anatech  Canada
diyAudio Moderator
 
anatech's Avatar
 
Join Date: Jun 2004
Location: Georgetown, On
Hi Hugo,
I was just having fun! No rush.

Large files can be emailed to bhomester at gmail dot com. There is no limit on that one.

-Chris
  Reply With Quote
Old 3rd January 2006, 10:29 PM   #18
anatech is offline anatech  Canada
diyAudio Moderator
 
anatech's Avatar
 
Join Date: Jun 2004
Location: Georgetown, On
Hi toman_9,
I would discharge the supply capacitors with a resistor. Then, measure the low value resistors in the output stage. They may be blown and look fine. Keep notes on what you have tested.

I always replace one stage back from the last blown component I find. So far, that would be your driver transistors. One blown output means all in that channel get changed. This for for reliability, and parts are cheaper than time.

So there is work for you to do yet. Take your time and think clearly. That means no beer or other before or while you are working.

-Chris
  Reply With Quote
Old 4th January 2006, 08:31 AM   #19
Netlist is offline Netlist  Belgium
diyAudio Moderator Emeritus
 
Netlist's Avatar
 
Join Date: Jan 2003
toman_9,
Your email account is bouncing.

/Hugo
  Reply With Quote
Old 4th January 2006, 10:15 AM   #20
diyAudio Member
 
Join Date: Nov 2004
Location: Grenoble (Alps)
Default Re: Marantz PM66KI amp.

Quote:
Originally posted by hotscot
Hi everyone

I have the amp. It's missing two large capacitors from the circuit board. Was going to throw it out but wonder if I could repair it.

I do have the schematic and will gladly provide it to anyone who be willing to help me with a little one on one advice on how to source and solder these capacitors.

Regards
Alan
Hi,

can you send me the schematics too?

Thanks,

Happy new year to everybody here!

Greg
  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
PM66KI gone pop Murphster Solid State 0 7th July 2009 12:19 PM
Marantz Cd 67 bull041161 Digital Source 4 13th April 2009 10:39 PM
Whats a Marantz PM66KI Toroidal TX worth? Fidelity Audio Swap Meet 0 15th December 2005 01:02 PM
Right speakers for Marantz PM8000 + Marantz CD67-OSE? betto80 Multi-Way 2 24th May 2005 04:21 PM
Link Between Marantz CD12 and Marantz CD99 Mesh Digital Source 16 7th November 2003 07:08 PM


New To Site? Need Help?

All times are GMT. The time now is 07:37 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