Marantz 2220B lamp issues

[AudioDog702]

Hi all,

I apologize if this has been addressed already. I ran a search a couple of ways and found nothing.

I recently picked up a Marantz 2220B and all of the dial lamps are out, the signal lamp appears to be ok. When I opened up the unit, I found one to be completely absent. My question is this. Do I likely have some other issue that would keep the others from glowing or does the removal of one prevent all the lamps from lighting?


Thanks guys,
AudioDog702

 

[MikeRam]

I have a 2220B at home right now with several lamps out so I don't think a bad lamp would keep the others from functioning. I'll pull one out tonight just to double check though.

I bought a 2230 with all lamps out and wondered the same thing but I bought some LED's for it and it is looking great. Depending on how long the lamps have been out, one possible advantage is that they haven't had as much time to yellow your vellum. You have a better chance of the dial to be the nice Marantz blue instead of the aged green.

Mike

 

[BeerLegs]

Check the fuse with a meter. I think it's right behind the lamps...sort of. Also on mine, I had lights, and then no lights. Then I had lights, and no lights again. It turned out to be the actual fuse holder wasn't making a good contact with the fuse. I pinched the ends so it would grip the fuse better and haven't had a problem since.

 

[Matt707]

Newbie needs help and guidance

First of all, I am new to AudioKarma and I need some site help and 2220b Repair help. I do realize that this should be a reply to this particular post, but I could not find a way to start a new one. So please be understanding and don't yell at me. I have a Marantz 2220b that I bought for $60.00 Non working. It is very dirty inside and some of the hardware has corrosion, looks like it has been stored for many years in a damp basement. I plugged it in and some of the lights came on, but no sound. Some of the push button switches were stuck and the tuning dial string is very loose. I cleaned all of the switches with deoxit and finally got it to come alive. It was crackling and popping, but it does play. The main problem is that the left channel is nothing but crackling, static and popping with no music at all. The right channel is fine and sounds normal. I replaced all the electrolytic caps on the amp, tuner and tone board, but still have No L. Channel. I swapped the 4 transistors on the heatsink from one channel to the other ( no change ). Can anyone help or at least tell me what my next step should be? I would really appreciate any help. Thank you.
Matt

 

[turnitup]

Hi Matt, and welcome to AK. You're at the right place to get advise on getting your 2220b back and running. This may sound stupid, and it sounds like you are knowledgable on repair, so I apologize upfront...

The way you described the unit (i.e. with frozen controls), I'd go back and deoxit the pots/controls one more time, and follow up with deoxit gold. The crackle you describe definitely sound like either bad or dirty pots/switches. If the pots are corroded enough, you may have lost one or more and need to actually replace one+. Sorry if this is too obvious and you have already gone down this path. Fortunately your 2220b is relatively simple in architecture and donor parts are mostly available on the auction site, so I'm sure you will get it fixed. I've got the same little Marantz and have just started using it again. Low power, but a nice clean and accurate receiver. When all is said and done, throw some white LEDs in there and you will get the classic blue Marantz back again. Really makes it a beautiful unit. Best of luck on your project, and again welcome to AK!