Harmon Kardon 230

[hewlew1]

I recently purchased a Harmon Kardon 230 receiver on the that auction site.It is in need of repair. Does anyone here have the service manual or schematic for this unit? I thought it was kinda neat that it has 2 tuning dials, FM on the right and AM on the left. Also what year was this unit produced? The unit in question is in pretty nice condition, Really clean and no scratches to speak of. Would like to get her working again any help is appeciated. Thanks, Harry

 

[darth]

Hi Harry, I had the little HK 230 awhile back. It sounded great with my old Klipsch KG4 speakers. I beleive it was made in the late 60's. It was neat being able to turn off the tuner lights. Sorry, don't have a service book for it or i would offer it.

 

[lukiedog]

Here is the SM for $5.50, not a bad investment.

http://cgi.ebay.com/Original-Harman...ce-Manual_W0QQitemZ130163004253QQcmdZViewItem

These HK receivers in the X30 model line are highly regarded and at the top of my list for "best" pre-1980 receivers. Be careful de-soldering, the traces tend to lift on these brown boards. Put your iron on the solder and use a bulb to quickly suck it off. If you put the iron directly to the board and use braid, you will have less success keeping these traces from lifting. When servicing, tilt the unit on its side and shine a bright light through the board, it will look just like the diagrams in the service manual.

Fix her up, probably not hard once you get the schematic.

Also, some units had A models, this SM is for the plain 230. Is yours a 230A? If so, might be a completely different layout.

 

[hewlew1]

Lukiedog,
Thanks for the link to the schematic mine is just the plain 230. 4 days left on the auction we will see whats happens. Harry

 

[Manitoulin]

I probably have an electronic version of the manual. PM me.

 

[hewlew1]

The 230 has been repaired. 3 blown transistors and as long as I was in there I changed filter caps in the power supply. This is a pretty little piece in really nice condition for its age. Will post a pic as soon as I find the cable for my digital camera.

 

[PoppaSteve]

Hi, hewlew1.

Say, I just picked up a 230A today, and was doing a little research on it here.

Alexkerhead tells a story about the lamps being a real pain to replace. Did you do the lamps? And if so, do you have any pointers?

The rest of mine seems to function nicely. Congrats on getting yours fixed.

 

[hewlew1]

PoppaSteve,
The only lamp I had to replace was the one that lights the power switch. I used an 8volt lamp which was physically larger than the original. Soldered the wires on it and slipped a piece of heat shrink tubing over the contacts bent the metal tang on the chassis and slipped it into position. Now I have a pretty red glow when it is on.

 

[PoppaSteve]

Thanks for the info. The power switch lamp on mine is out as well, so that tip will come in handy.

Thanks again.