I had some informs that this is a Harman Kardon schematic - diyAudio
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Old 16th December 2004, 11:35 AM   #1
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Default I had some informs that this is a Harman Kardon schematic

Here is the first from 4 schematics founded.

Thank you Mjarve.

Carlos
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Old 16th December 2004, 11:37 AM   #2
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Default This is the second one, may be Harman Kardon

A very respectable brand.

Carlos
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Old 16th December 2004, 11:39 AM   #3
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Default Yes, they can be real Harman Kardon

Very simple...near to be deceptive, isnt'it?

Can be good?.. so simple this way?

Carlos
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Old 16th December 2004, 11:42 AM   #4
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Default This one seems to be a Marantz, but they told me that is a Harman Kardon

This schematic is very interesting, do you think this can be good.... so simple that way.

Mjarve, thank you.

Carlos
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File Type: jpg harman 4.jpg (78.7 KB, 664 views)
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Old 16th December 2004, 11:47 AM   #5
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Default Here you can check if Harman Kardon or not, and you can have better informs

This good man helped us, not so easy to find old Harman schematics.


here is some link to check voltages:

http://crystia.accessmn.com/hkbooks/hkbooks.html


regards,


Carlos
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Old 16th December 2004, 12:45 PM   #6
00940 is offline 00940  Belgium
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Bah, HK is offering you all the old schematics to download for free anyway. So they're easy to find

http://manuals.harman.com/hk/Service...HK930%20sm.pdf for example for the HK 930. Just change the number.

That whole serie of the HK-x30 receivers is very good, at least the amp section. The preamp section is really keeping the amp back.

My favorite is the little integrated A-401. 25 very nice watts. I'm using two of them in a passive biamp setup, preamp sections bypassed, input caps replaced by mkp and all electrolytics changed. The schematic is the same than the HK330C but the A401 uses 2SC1030C output transistors in TO-3 package rather than the 2sd476a in to220 package used in the H330c.

They look cute :

Click the image to open in full size.
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Old 16th December 2004, 12:46 PM   #7
thanh is offline thanh  Viet Nam
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why do you try to build a sym amp , such as a mikeb's schematic
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Old 16th December 2004, 12:56 PM   #8
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Here's the little a401 schematic :

Click the image to open in full size.
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Old 16th December 2004, 01:42 PM   #9
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Default That's the way i like the forum... having freedom to publish schematics.

Those copyrigth laws are awfull... and also people sale equipment without schematic!...this is non sense for me....it is alike to buy a Black Box...inside can have a stone in the place of circuits!...hehehe...not so bad this way.

But a friend was making a Garage sale.... and hurricane asked a "very heavy" equipment to buy...of course, a powerfull unit..... Other friend, a guy we call Klingon, put a stone inside....when Hurricane arrived his home and discover the stone was really funny..... we runned to his home to see his reaction!... i cannot repeat the words he said to us!

Wonderfull that we can have schematics for free, and without troubles.

Thanh, related Mikeks...my God!...let Mikeks in peace...will be better, this way we gonna have peace too.

Carlos
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Old 16th December 2004, 01:45 PM   #10
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Default MikeB, from Goodluck, i like him very much

A very nice "chucrute" he is.

Good bye Thanh, i am not happy with you....you cannot divide the girl in the picture...hummm...very bad this....me do not like...me good!

Carlos
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