Harman Kardon 930 Phono 2 right channel + STEREO light issue

[jpreza]

Hey everyone! I’ve had my Harman Kardon 930 since around 2017 and absolutely love the sound. I mostly listen to classic rock vinyl from the ’60s, ’70s, and ’80s—Beatles, Beach Boys, Zeppelin, Eagles, Duran Duran, and so on.


Recently, I noticed an issue with Phono 2—the right channel is very low. I prefer using Phono 2 since it’s right next to the FM input, which makes switching between sources super convenient. I should also mention that the previous seller said that it had been recapped recently (around 2016 or so).


My setup:

• HK 930 receiver
• Pioneer PL-400 turntable
• Ortofon 2M cartridge

When I plug the turntable into Phono 1, both channels sound great—no issues. So it seems isolated to Phono 2.


Also, a minor quirk: the STEREO indicator never lights up on FM, even though I can clearly hear stereo separation in the signal.


Any thoughts on where I should start with troubleshooting? Appreciate any insights!

TIA....JP

 

[painttoad]

phono 1 and 2 use the same circuitry so if phono 2 is fine then the issue would not be in the circuit itself but possibly dirty rca jacks, bad wire. dirty function switch.

Also, a minor quirk: the STEREO indicator never lights up on FM, even though I can clearly hear stereo separation in the signal.

check the bulb

 

[Mumbles]

the STEREO indicator never lights up

If the bulb is good and you have power at B5, maybe check TR 303, TR 302, C 310, and the other components related to pin 14 on IC 301.