Schematic needed for a 25 year old radio

If anyone knows how I can obtain a schematic for a Harman/Kardon Model HK-380i

receiver, I sure would appreciate your letting me know. It's a solid state AM/FM

stereo receiver with a 50 watt RMS per channel amplifier, manufactured around 1982.

Thanks in advance for your help.

Reply to
Dan Street
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I have it. But before I send it to you let me know whats wrong with this unit and what you have checked on it already. I don`t like to give schematics out to people that don`t know how to use them. So the more you tell me that you know then the better it is for you.

Reply to
tvguy

What is wrong with the unit? I have a .pdf scan of the manual but it does not have a schematic. If you need the alignments or block diagram only it might be useful.

Leonard

Reply to
Leonard Caillouet

Thanks Leonard, I inherited the Model HK 380i from our son and would like to restore it. He apparently had it worked on by someone who butchered it, but it seems to be a fine piece of equipment..

I know the 4 power transistors and shorted/open and have ordered the NTE replacements. A dual 0.33 ohm, 3 watt resistor is missing in one channel (but present in the other channel... that's how I knew the value) and a couple of driver transistors are missing. I have no clue as to what kind they are. I've checked with Harman/Kardon and they don't have service manuals this old.

Other than that, the FM/AM works up through the discriminator and operates the dial pointer, which indicates received signal strength.

The maunal would be helpful with the block diagram. I appreciate your offer and would like to see the manual.

Dan Street

snipped-for-privacy@nc.rr.com

Reply to
Dan Street

Free download and you don't have to prove you know what you are doing.

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Dan Street wrote:

Reply to
Boiler_81

Thanks for the download link, but no schematic.... and I know what I'm doing {:>)

--
Dave M
MasonDG44 at comcast dot net  (Just substitute the appropriate characters in the 
address)

Never take a laxative and a sleeping pill at the same time!!
Reply to
DaveM

I think Harmon Kardon pulled their schematics from their website one or two years ago. I'm sorry that I didn't download them all first, but it's rare for things to disappear from the Internet.

Boiler_81 wrote:

Reply to
Mike Berger

Yeah, really sad when they provided them at one time but for whatever reason, they decide to withhold significant information. But, I guess since it's their data, they can do with it as they wish. Still sad.

--
Dave M
MasonDG44 at comcast dot net  (Just substitute the appropriate characters in the 
address)

Never take a laxative and a sleeping pill at the same time!!
Reply to
DaveM

They still provide online access to manuals and schematics to dealers and authorized servicers. This particular manual is avaialable on their site, which is impressive since most companies don't bother to go back and scan 20 year old manuals. They must have missed the schematic, however, because it is not included. This may have been one of the models that had the schematic packaged with the unit, but it is not in the files for the OM nor the SM.

Leonard

Reply to
Leonard Caillouet

around

Reply to
Boiler_81

Reply to
Boiler_81

H. W. Sams lists it as available as a photocopy. Their electronic index doesn't say if it was in one of the MHF series manuals as well.

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--
Service to my country? Been there, Done that, and I've got my DD214 to
prove it.
Member of DAV #85.

Michael A. Terrell
Central Florida
Reply to
Michael A. Terrell

Five days ago I sent you an explanation of what is wrong with the unit and what I had already checked, as well as what I suspect is wrong, my qualifications and my need for a schematic.

Since then, I have heard nothing from you.

What kind of game are you playing, tvguy?

Dan Street

Reply to
Dan Street

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