Official Schematics and Manuals Thread (Registered Users)

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Re: MF 2250

Post by admin »

stevieray wrote:Anyone got a schematic for a MF 2250? I looked through the list; I don't think I missed it.

Playing last night, one of the speaker spade lugs twisted around and shorted the R speaker terminals while I was out of the room. It wasn't playing too loud, but no sound. I haven't looked at it today or tried it again. Both fuses on the back are OK -- are more inside? Very, very little sound was coming out of the R speaker -- not silent but just a little. Swapped in another old NAD amp and all works good, so it's definitely the amp. I hope there's something simple inside, but I fear an output transistor is fried. No smell, at least!
Sorry to hear about what happened. If the fuses are not blown I think you need to open up the 2250 and see if you see anything with visible damage. Unfortunately, the 2250 is not in our database as of this time. If you do get a copy, please send it to me and I will update the database for others. Hope everything works out well.
-admin
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Main stereo: ART Amplifier and ET7s2. 2nd stereo: PV-14L and MV-55. Previously Owned: PF2 preamp, Evolution 2000 Amp, PV-12AL preamp, D/A-2b Vacuum-Tube Digital Processor.
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Re: Official Schematics and Manuals Thread (Registered Users)

Post by tsbel »

Does anyone have schematics for a MV52
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Re: Official Schematics and Manuals Thread (Registered Users)

Post by tsbel »

Does anyone have schematics for a Classic Sixty?
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Re: Official Schematics and Manuals Thread (Registered Users)

Post by afonso »

Conrad Johnson EV1 phono amplifier schematics


https://www.docdroid.net/ONIWdPy/ev1sch-2.pdf.html
CJ PR 12, PR 14, CJ EV 1, CJ DA2B
Accuphase DP 85
Micro Seiki RX1500, Ortofon Xpression + Ikeda IT 407 12"
DIY speakers with Seas Excel woofers and tweeters.
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Re: Official Schematics and Manuals Thread (Registered Users)

Post by admin »

afonso wrote:Conrad Johnson EV1 phono amplifier schematics


https://www.docdroid.net/ONIWdPy/ev1sch-2.pdf.html

Updated the database with the EV1 schematic, thanks for the file!
-admin
Home Theater in Member Gallery
Main stereo: ART Amplifier and ET7s2. 2nd stereo: PV-14L and MV-55. Previously Owned: PF2 preamp, Evolution 2000 Amp, PV-12AL preamp, D/A-2b Vacuum-Tube Digital Processor.
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Re: Official Schematics and Manuals Thread (Registered Users)

Post by george_k »

Hi Admin,

Most if not all of the CJ manuals can be obtained from the CJ website through the service portal. Direct link to the manuals below:

http://www.conradjohnson.com/It_just_so ... nuals.html
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Re: Official Schematics and Manuals Thread (Registered Users)

Post by admin »

george_k wrote:Hi Admin,

Most if not all of the CJ manuals can be obtained from the CJ website through the service portal. Direct link to the manuals below:

http://www.conradjohnson.com/It_just_so ... nuals.html
Oh wow, I wasn't even aware of the complete listing. I will update the main listing with the links. Thanks.
-admin
Home Theater in Member Gallery
Main stereo: ART Amplifier and ET7s2. 2nd stereo: PV-14L and MV-55. Previously Owned: PF2 preamp, Evolution 2000 Amp, PV-12AL preamp, D/A-2b Vacuum-Tube Digital Processor.
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Re: Official Schematics and Manuals Thread (Registered Users)

Post by Gmoon »

Could I get a copy of a Premier Two Schematic please? Thanks..
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Re: Official Schematics and Manuals Thread (Registered Users)

Post by admin »

Gmoon wrote:Could I get a copy of a Premier Two Schematic please? Thanks..
You should now be able to download the files.
-admin
Home Theater in Member Gallery
Main stereo: ART Amplifier and ET7s2. 2nd stereo: PV-14L and MV-55. Previously Owned: PF2 preamp, Evolution 2000 Amp, PV-12AL preamp, D/A-2b Vacuum-Tube Digital Processor.
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Re: Official Schematics and Manuals Thread (Registered Users)

Post by plurn »

Conrad johnson just redesigned their website. Clicking on a few of the vintage and current products shows they have user manuals available for download for a lot of their products. Grab them now before they change their mind.

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Re: Official Schematics and Manuals Thread (Registered Users)

Post by aiello54 »

Anyone got a schematic for pv9? I looked through the list but I didn't find it.

Thanks.

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Re: Official Schematics and Manuals Thread (Registered Users)

Post by admin »

aiello54 wrote:Anyone got a schematic for pv9? I looked through the list but I didn't find it.

Thanks.

Ignazio
It should be in the "Part 1" zip file. Just download the file and extract the PV9 directory.
-admin
Home Theater in Member Gallery
Main stereo: ART Amplifier and ET7s2. 2nd stereo: PV-14L and MV-55. Previously Owned: PF2 preamp, Evolution 2000 Amp, PV-12AL preamp, D/A-2b Vacuum-Tube Digital Processor.
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Re: Official Schematics and Manuals Thread (Registered Users)

Post by mattking52 »

Does anyone have the schematic for the PV10B? I only see the schematics for the Rev. A model, but perhaps I missed something. Thanks!
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Re: Official Schematics and Manuals Thread (Registered Users)

Post by hc68 »

Can any one provide a schematic for Premier 12 mono block.
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Re: Official Schematics and Manuals Thread (Registered Users)

Post by admin »

hc68 wrote:Can any one provide a schematic for Premier 12 mono block.
You should be able to find the schematic in the "part 4" download file.
-admin
Home Theater in Member Gallery
Main stereo: ART Amplifier and ET7s2. 2nd stereo: PV-14L and MV-55. Previously Owned: PF2 preamp, Evolution 2000 Amp, PV-12AL preamp, D/A-2b Vacuum-Tube Digital Processor.
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Re: Official Schematics and Manuals Thread (Registered Users)

Post by carlosvazquez »

conrad Johnson pv5 schematic diagram parts list
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Re: Official Schematics and Manuals Thread (Registered Users)

Post by carlosvazquez »

conrad Johnson pv5 schematic diagram1, 2 , and second 2 parts list
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Re: Official Schematics and Manuals Thread (Registered Users)

Post by antonio »

dovrei modificare il mio conrad johnson premier 14 nall alimentazione il mio preampli e un 110v lo dovrei portare a 220v c e qualcuno che mi puo aiutarmi grazie ciao
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Re: Official Schematics and Manuals Thread (Registered Users)

Post by antonio »

I should change my conrad johnson premier 14 nall power my preamp and a 110v to 220v I should bring c and someone who can help me with hello
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Re: Official Schematics and Manuals Thread (Registered Users)

Post by Buck R0gers »

Hello
Looking for a schematic for a MV-100. Mine quit and now I am back to Solid State.. :(
Solid state and Horns do not mix well!
Thanks
Buck
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