Marantz PM66 KI tweeks - Page 29 - 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 31st October 2009, 04:22 PM   #281
diyAudio Member
 
canetoad's Avatar
 
Join Date: Nov 2007
Location: Dunfermline
If you're going to replace a lot of the components wouldn't it be cheaper to buy an SE and replace the tx with a toroidal version? I'm trying to source a KI and they are a bit thin on the ground. SEs are a lot cheaper too.
__________________
Bernie.
  Reply With Quote
Old 1st November 2009, 12:43 PM   #282
nuryev is offline nuryev  Australia
diyAudio Member
 
Join Date: Aug 2007
Default PM66KI mods

Amplifier channel successfully rebuilt, and sounding great - thanks to some of the great people on this site who contributed provided information, sources for components and patience.
Thanks diyAudio -you guys are a great bunch
__________________
NYV
  Reply With Quote
Old 27th February 2010, 06:48 PM   #283
Glenn2 is offline Glenn2  United Kingdom
diyAudio Member
 
Glenn2's Avatar
 
Join Date: Oct 2006
Location: London, UK
@Brent:

I converted the phono inputs in my PM66KI to another set of line-level ones (I don't have a turntable). Problem is, because the phono setting on the source selector switch was never used, the contacts on the attached PCB switch are dirty. When I use this position I have to twiddle the knob a bit to get the left channel to come in.

So, can I:
a) get a direct replacement for this switch (i.e., is it a standard alps part or something)? I didn't pay much attention to it when I had the amp apart.
b) can it be opened and cleaned?
c) is there something I can squirt into it that will do the job without endangering the other contacts?

Cheers!
  Reply With Quote
Old 3rd March 2010, 08:36 AM   #284
diyAudio Member
 
Fidelity Audio's Avatar
 
Join Date: Dec 2005
Location: Doncaster England
Hi Glenn

The top clips off the switch, usually switch cleaner and lots of sliding of the switch will sort it out.
While it is in bits you may as well bypass the source direct etc (or have you already done that?)

I had to remove the phono pcb in mine due to the larger heatsinks LOL

Brent
  Reply With Quote
Old 3rd March 2010, 10:36 AM   #285
Glenn2 is offline Glenn2  United Kingdom
diyAudio Member
 
Glenn2's Avatar
 
Join Date: Oct 2006
Location: London, UK
Thanks for that Brent!
I'll have a go on a wet Sunday soon (probably won't have to wait long...)
Cheers.
  Reply With Quote
Old 26th October 2010, 04:50 PM   #286
diyAudio Member
 
Fidelity Audio's Avatar
 
Join Date: Dec 2005
Location: Doncaster England
It's that time and a sad time. I'm selling the uber 66KI

It's been my rear channel amp for the last 6 month and to be honest it's a waste there. Not sure how much I want for it but i'm open to sensible offers. It would also have to be local pick up as the two transformers are layed down rather than bolted down.

Brent
  Reply With Quote
Old 28th October 2010, 05:39 PM   #287
diyAudio Member
 
Ben Hanke's Avatar
 
Join Date: Dec 2007
Location: Vancouver, BC
Send a message via MSN to Ben Hanke Send a message via Skype™ to Ben Hanke
Sad news indeed, Brent. I've been following this thread for about 4 years now, and was recently inspired to gradually start following your mods list. I got the Black Gate cap swaps done so far, and I expect I'll probably continue, although the transformer is hard to get without breaking an amp and those Silmics of yours seem pretty unique (you recently recommended Mundorf to me as alternatives). I hope it goes to a good home and you decide to keep the pics and docs up on your site.
  Reply With Quote
Old 18th November 2010, 07:02 AM   #288
triocat is offline triocat  England
diyAudio Member
 
Join Date: Nov 2010
Location: The North West
Hi Bwent

newbie here, read the posting again and again, bought what was a faulty KI66 to find tit sounds great, got it off ebay and watch yours go too, indeed sad, but not for the buyer.

So many questions, TX, cap values, heatsinks from, what first, what next, when, eh?

so will you be running a day course ' getting to know my KI' with tea and biscuits

Super posts

Tc
  Reply With Quote
Old 24th November 2010, 02:00 PM   #289
triocat is offline triocat  England
diyAudio Member
 
Join Date: Nov 2010
Location: The North West
helllloooo?
  Reply With Quote
Old 9th December 2010, 11:53 AM   #290
triocat is offline triocat  England
diyAudio Member
 
Join Date: Nov 2010
Location: The North West
hi kinda new here, been following the 66Ki tweeks and all and thought i would keep a brief here on my upgrades to the 66KI, of course following closely to Rowemeister who has been great help so far.

Bought a 66KI from ebay - said not working but was working fine when i fiddled with the speaker outputs. the sound is good with a good balance of bass and treble with clarity.

so the amp will be used for a full system - CD17, tuner, vinyl and a CC45 multiCD.

so the very first thing i did was look inside, quite sparsh for a large box.

Then without any cost i removed the wire from the RCA board (PV01)to the board with the record and direct control (PS01), I then wired from the Master volume to the RCA board with the 4 core cable that was from the MV to the PS01, using R,Rgnd, L Lgnd, this is simple to do. By missing out the PS01 board the sound has a cleaner route and does sound better, clarity improved. This cable will be changed for better cable here and from MV to power board, using 20AWG jupiter solid copper.

Next smoother caps and bridge rectifier to change, i have some 63000uf/63v BHC caps coming, but i am working out how to install the new diodes, inductors and bleeder resistor within the current board.

Happy soldering.

Tc
  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
Marantz PM66 se problems, information wanted alan_w Solid State 8 6th August 2012 06:13 PM
Quad II Mods/Tweeks slurb.net Tubes / Valves 62 16th June 2012 01:32 AM
wanted marantz pm66 amp paul.42 Swap Meet 0 6th April 2009 09:09 PM
Tweeks on tubes - bring out the demagnetiserss ashok Tubes / Valves 36 3rd August 2004 06:34 PM
expert tweeks for PA? Pbassred Multi-Way 4 7th December 2003 09:57 PM


New To Site? Need Help?

All times are GMT. The time now is 05:15 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