Stereo indicator light on Marantz 2220B

[need2boat]

Hi I had posted this question in the general receiver form but I think it's better suited here. I tried to move it but couldn't figure it out.

I recently replaced the lights on my 2220B and all went well but the Stereo indicator light is very week. I took some reading and it looks like at it's strongest I'm getting 3.4 volts but I should being around 7.4. I'm fairly sure the signal strength is good so just wondering if anything can help with strep on diagnosing the problem.

thanks

Joe

 

[avionic]

19Khz osc may have drifted a little.

 

[petehall347]

what is voltage at j814 ?

 

[catrafter]

I'm betting the wrong lamp was installed.

Tom

 

[avionic]

I'm betting the wrong lamp was installed.

Tom

That would be the best case scenario.

 

[petehall347]

all revolves around j814 me thinks ..

 

[need2boat]

Guys, Thanks you for the help. I just looked over the schematic and I see j814, then looked and found it on the board. It's on the front right side of the unit near the teo? So when I take my reading what other connection do I use to the voltage reading? Sorry, I'm still learning here.

Also the light kit came from Bob @ www.vintage-electronics.net. He offered to send a replacement light but all the other lights he sent were good to go so before I bother changing out I might as well check the voltage.

 

[petehall347]

one lead on shiny chassis .the other on j814
try with stereo lamp on and off .

 

[need2boat]

When the stereo lights on I'm getting 9.7 and when it's not on I'm getting 10.6 That seems odd to me as I was thinking the readings would be the other way. . .or is that due to the draw on j814.

 

[petehall347]

if the old lamp is still good try it back in there

 

[need2boat]

OK, I'll give it a go when I get home from work. I didn't think to check this light before I pulled it out with the other ones that were not working.

 

[need2boat]

Well it looks like we are back on the bight side of street. Got the replacement light from Bob in the mail box and gave it a try without issue.

thanks PeterHall347 and others for the help!

Joe

 

[petehall347]

glad that was an easy one .. it could have gone in a different direction .. easy things first is best ..
well done ...