Marantz PM66SE schematic wanted

hjelm · 24th May 2004, 10:53 AM

Hi,
Does anyone have this schematic or the whole service manual?
It actually sounds ok but i would like to have a look att the innards of it to see if anything is worth modifying.

The first thing i intend to do is to dampen the ringing of the PSU, clearly visible on a 20MHz scope.

Anybody modified one of these?

Thanks

beks · 25th May 2004, 03:56 PM

I have upgrade PM63 with better transistors and power electrolytes to a higher power amp, and I remember was better sound. I used Sanken transistors and nichicon condensers.

Tell me more, which transistors has this marantz.... are those 2SC5198 and 2SAxxxxx -> can't remember number.. and I think there are two transistors per channel..

I would like a schema too

cheers

hjelm · 26th May 2004, 06:43 AM

I do not have it open at the moment. Will check the transistors.

eborgard · 17th October 2004, 06:20 PM

I have the PM66SE (not KI) service manual (original, paper). Send me your e-mail address and I'll send you a scan (18 pages).

Julian Nicolls · 9th April 2005, 07:12 AM

My PM 66SE has died, but all the lights still come on and the volume knob still turns with the remote control. I'd be most obliged if you could please email me the service manual, many thanks - j.nicolls@ntlworld.com

alex22 · 22nd June 2007, 10:04 PM

I took a soldering iron to my pm66se KI before I discovered this forum where it seem to be a simple matter of changing a resistor. I had the same problem other people had where no the output stage is permanently isolated and no relay clunk can be heard. If anyone good help me out I would appreciate it. Email: argat7@doramail.com

viktor82 · 25th September 2007, 01:49 PM

I have problem with my PM66Se amplifier. Please email me the service manual. Thanks!
viktor82@sksyu.net

Thomo · 25th September 2007, 02:00 PM

Hi guys. I've just emailed you all the PM6010 manual, it has the same mainboard.

Lee.

Geej_Audio · 11th February 2010, 02:52 AM

So, someone got that service manual they can forward? geej_audio at hotmail (dot com of course)

Love my PM66SE - had it for many years. But now has the problem someone here mentioned... looks like works fine, but no audio out... and no clunk of the relay when turn on power.

'scope, meter, soltering iron at the ready :-)

Cheers.

sakis · 11th February 2010, 07:24 AM

i have the schematic of the PM66 please email me if you are intersted its 1MB so i cannot post it here

regards sakis

24th May 2004, 10:53 AM	#1
hjelm diyAudio Member Join Date: Nov 2003 Location: Västerås	Marantz PM66SE schematic wanted Hi, Does anyone have this schematic or the whole service manual? It actually sounds ok but i would like to have a look att the innards of it to see if anything is worth modifying. The first thing i intend to do is to dampen the ringing of the PSU, clearly visible on a 20MHz scope. Anybody modified one of these? Thanks __________________ Hjelm

26th May 2004, 06:43 AM	#3
hjelm diyAudio Member Join Date: Nov 2003 Location: Västerås	I do not have it open at the moment. Will check the transistors. __________________ Hjelm

22nd June 2007, 10:04 PM	#6
alex22 diyAudio Member Join Date: Aug 2005	PM66se KI schematic needed I took a soldering iron to my pm66se KI before I discovered this forum where it seem to be a simple matter of changing a resistor. I had the same problem other people had where no the output stage is permanently isolated and no relay clunk can be heard. If anyone good help me out I would appreciate it. Email: argat7@doramail.com

25th September 2007, 01:49 PM	#7
viktor82 diyAudio Member Join Date: Sep 2007	PM66SE I have problem with my PM66Se amplifier. Please email me the service manual. Thanks! viktor82@sksyu.net

25th September 2007, 02:00 PM	#8
Thomo diyAudio Member Join Date: Nov 2006	Hi guys. I've just emailed you all the PM6010 manual, it has the same mainboard. Lee. __________________ /\/\/\/\/\/\/\/


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25th May 2004, 03:56 PM	#2
beks diyAudio Member Join Date: May 2004 Location: Prishtina	I have upgrade PM63 with better transistors and power electrolytes to a higher power amp, and I remember was better sound. I used Sanken transistors and nichicon condensers. Tell me more, which transistors has this marantz.... are those 2SC5198 and 2SAxxxxx -> can't remember number.. and I think there are two transistors per channel.. I would like a schema too cheers

17th October 2004, 06:20 PM	#4
eborgard diyAudio Member Join Date: Oct 2004	I have the PM66SE (not KI) service manual (original, paper). Send me your e-mail address and I'll send you a scan (18 pages).

9th April 2005, 07:12 AM	#5
Julian Nicolls diyAudio Member Join Date: Apr 2005 Location: Cambs	My PM 66SE has died, but all the lights still come on and the volume knob still turns with the remote control. I'd be most obliged if you could please email me the service manual, many thanks - j.nicolls@ntlworld.com

11th February 2010, 02:52 AM	#9
Geej_Audio diyAudio Member Join Date: Feb 2010 Location: USA (Brit ex-pat)	So, someone got that service manual they can forward? geej_audio at hotmail (dot com of course) Love my PM66SE - had it for many years. But now has the problem someone here mentioned... looks like works fine, but no audio out... and no clunk of the relay when turn on power. 'scope, meter, soltering iron at the ready :-) Cheers.

11th February 2010, 07:24 AM	#10
sakis diyAudio Member Join Date: Jan 2006 Location: nea makri athens greece	i have the schematic of the PM66 please email me if you are intersted its 1MB so i cannot post it here regards sakis __________________ SERVICE ΙΑΠΩΝΙΚΩΝ ΜΗΧΑΝΗΜΑΤΩΝ ΗΧΟΥ www.eastelectronics.gr

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