Pioneer M5

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I would like to have this amplifier schematic.

I am interested to assemble the power unit to listen to it.

Can you please, upload the power amplifier schematic or service manual to:

panzertoo@yahoo.com

thanks in advance by your kindness.

regards,

Carlos

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I have a non complete schematic found at JA1MDN home page..not enough to simulate...i am still simulating but i see something was missed.
 

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Hi Carlos I dont believe you want to try build this after you see the schematics, this amp is super complicated . :bigeyes:

I dont have detailed schematics but Ill post what the front end looks like.
 

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The one i want the schematic is this one

Are you sure your schematic is the correct one for this model?

I am not sure about mine..it looks to be...but not informed into the Japanese site....or i could not read entirelly..there are signs i do not understand.

If you can read perfectly the Japanese, go there, as i have only some basic knowledge about this language..alike others...only basic... at least i know several languages..all basic knowledge.

here you have the link:

http://amp8.com/tr-amp/pioneer/m5.htm

regards,

Carlos
 

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Here you have more informations about it

and the schematic posted looks complicated (yours)..for sure i do not want that complicated stuff in my life..do not believe sounds better because complicated.... maybe the opposite...each part distoting and contributing to the final mess...that artificial lifeness sonic.

Here you have a text i found about it:

- "Monophonic power amplifier carefully finished from the idea "the amplifier for having a music intoxicated.

It returns to the origin of the amplifier design of amplifying an input signal faithfully and reproducing as an output signal, and the "new super linear circuit" which acquires a property without applying NFB is developed and carried. This banished TIM distortion from the origin and the stability in a high region is secured."
 
The circuit posted seems not to be the real one...or... at least is not complete

Observe here...this looks to be a VBE multiplier trimpot... the stand by current adjustment..not sure..but it is possible this adjustment exists into the complete schematic substituting some fixed resistance you have into the circuit.

regards,

Carlos
 

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Re: The circuit posted seems not to be the real one...or... at least is not complete

destroyer X said:

Observe here...this looks to be a VBE multiplier trimpot... the stand by current adjustment..not sure..but it is possible this adjustment exists into the complete schematic substituting some fixed resistance you have into the circuit.

regards,

Carlos


Dear Carlos,

My fault I didn't explain myself good enough. I mean there is not VBE transistor for thermal compensation but just a simple potmeter.

With best regards,
Bas
 
Hi Carlos

The circuit that I posted is the front end of the schematic that you posted, you only have the output section. The circuit is called super linear and was used in Pioneer M5 M6 and PA 06. From what I understand these amps were highly regarded and said to compete with Macintosh and Mark Levinson, price back in 1989, 1990 was around 10 000 dollars outside Japan if I remember correctly. Between our 2 schematics we missing some parts though.

Complexity does not always mean bad sounding amp, I myself have some electrocompaniet monoblocks which are more complex than most but sounds rather better than a lot of amps.
 
Dear All,

From what I can judge, it seems a very neat circuit. High current gain already from the VAS. Tripple Darlington. Something that seems to be hated by many, but can sound very good in my opinion.

I had the opportunity to hear the M5's on a huge B&W Matrix 800 system, and I was very impressed by it's speed, imaging and drive.

With best regards,
Bas
 
Tell him we gonna pray for him and to all selfish guys

poor devil (not in money... the spirit)...i hope life will teach him some nice things...he has not learned to be friendly and cooperative.

Send him my best wishes for a better future ... also suggest to him to reserve some space inside his coffin (when died) to be buried with his schematic this way he will go with his schematic and nobody will see....better he use fire protection when travelling to the destination... i am sure the place may be very hot! (ahahahah!)

Yes.... i am glad i am not this way...today i will spend 3 to 4 hours selecting and uploading schematic to one of our forum friends site...someone that has a cooperative site offering schematics, for free, without subscription, to our community..cooperating with all wide world folks... while that guy...well....

regards,

Carlos

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Let the thread die.. i already have enougth material to research.
 

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