Re: Schematic needed for a 25 year old radio
Source: http://sci.techarchive.net/Archive/sci.electronics.repair/200603/msg00330.html
From: "Dan Street" <dstreet@xxxxxxxxx> Date: Sun, 05 Mar 2006 11:59:42 GMT 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 dstreet@xxxxxxxxx
"Leonard Caillouet" <no@xxxxxx> wrote in message news:w_zOf.80320$bF.12873@xxxxxxxxxxxxx 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 "Dan Street" <dstreet@xxxxxxxxx> wrote in message news:GPrOf.29513$915.17243@xxxxxxxxxxxxxxxxxxx If anyone knows how I can obtain a schematic for a Harman/Kardon Model HK380i
Re: Schematic needed for a 25 year old radio 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.