Harmon Kardon FA30X

[accmeint]

Hello,
I just purchased a Harmon Kardon FX30X tube receiver and I'm trying to find some information on this thing. I found a schematic for the FX3000 receiver because I read that my model, (FX30X), is the kit version of the FX3000...I hope that's true! I'm wondering if the FX30X was a kit perhaps there is a build manual floating around out there. That would be invaluable in restoring this thing! The problem is that other than the schematic, there appears to be absolutely nothing on the web about my receiver. I hope I am wrong! If anyone has a link or info I would greatly appreciate it!
Thank you

 

[Netlist]

In the first post, the site's admin claims to have what you need:
https://vintagetubeelectronics.com/harman-kardon-fa30xk-receiver/

Hugo

 

[huggygood]

knowing Harman Kardon, look at the A300 for the amp part and a tuner from the same era for the rest

 

[accmeint]

Thanks huggygood,
That makes sense and its a great idea! I don't understand why documentation is so scarce for the FA-30X so I'll take your advice.

 

[accmeint]

Hello All, I just received some replacement electrolytic caps and I don't understand why someone appears to have replaced a 3900 ohm resistor with a 62000 ohm value on the C60 electrolytic cap?? (See the attached pictures). I'm trying to decide if I should follow the schematic or just keep what I have. Now I have the Harmon-Kardon FA-30X and this schematic is for the FA-3000X but I couldn't find a FA-30X schematic. My gut tells me to follow the schematic and use a variac but my gut is wrong about 80% of the time! Any advice would be appreciated!!!
Thanks for reading this.

 

[directdriver]

Full schematic of FA300X and hopefully it's similar enough to be helpful.
I learned from here that "The stereo receiver FA30XK is the Harman Kardon FA3000X in kit form."

 

[rayma]

I don't understand why someone appears to have replaced a 3900 ohm resistor with a 62000 ohm value on the C60 electrolytic cap.

That's the power supply for the phono stage. Either resistor would work, but use whatever gets you to the phono plate DC voltages on the schematic.

 

[accmeint]

Thanks Directdriver, I now feel confident that I have the correct schematic! Thanks you for the information!

 

[huggygood]

Haman A300