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2215B Refurbishment - Any tips?

Rasputin47

Rasputin47

Woad
I recently acquired a 2215B with the intention of refurbishing it.
Is there anything in particular that needs special attention?

I also noticed that the stereo lamp works in fm stereo mode only and in not aux or phono modes, is this normal a 2215B or is there an issue?

Thanks in advance.
 
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New caps, new power switch, new vellum and new lamps. That's it.

The stereo light is supposed to come on when you use AUX and phono. Are you sure you're getting stereo sound out of these sources?
 
Ruxman said:
The stereo light is supposed to come on when you use AUX and phono. Are you sure you're getting stereo sound out of these sources?
Click to expand...

I thought it should, but it only works in FM stereo and all inputs / functions are working properly and in stereo on phono, aux and tape monitor.

I haven't had a chance to deoxit it yet, but, could a dirty selector switch be the problem or are there other possible causes I need to check?
 
From what I have seen of from the internal view pics this should be an easy one. Also think about replacing the relay and the diff. pairs on the amp board.
 
patfont said:
From what I have seen of from the internal view pics this should be an easy one. Also think about replacing the relay and the diff. pairs on the amp board.
Click to expand...

patfont

I bought this receiver because I figured it would be easy to work and serve as good practice for my soldering skills before I replace the power board caps in my 2325.

The 2215b is in good working order and I was pleasantly surprised with how good it sounds as well - hopefully it will be even better when I'm done.

There is no relay in this unit but which are the diff pairs?
 
Rasputin47 said:
patfont

I bought this receiver because I figured it would be easy to work and serve as good practice for my soldering skills before I replace the power board caps in my 2325.

The 2215b is in good working order and I was pleasantly surprised with how good it sounds as well - hopefully it will be even better when I'm done.

There is no relay in this unit but which are the diff pairs?
Click to expand...

Just looked and I do not see any on this amp board. So should be pretty easy then just caps, clean, and bulbs and velum.
 
Ruxman said:
New caps, new power switch, new vellum and new lamps. That's it.

The stereo light is supposed to come on when you use AUX and phono. Are you sure you're getting stereo sound out of these sources?
Click to expand...

Don't forget to do a good Deoxit job, also I too own a 2215B and the stereo lamp only works on FM.
 
More newbie questions

I’m putting together a parts order and started by making a list of the electrolytic caps from the service manual.
After checking the values in the manual against what is actually on the boards I have found the following discrepancies.

The manual says C808 on the power board is 220uf 50V but there is a 100uf 50V cap on the board. I will replace it with what is already there.

The manual says C401 & C402 on the phono board are 33uf 25V electrolytic caps, the caps on the board are 3.3uf 25V tantalum caps.

The manual says C701 and C702 on the amp board are 1uf 25V electrolytic caps, the caps on the board are 1uf 25V tantalum caps.

I have read in other threads that tantalum caps should be replaced. Should I replace them with electrolytic caps, something else or just leave them?

Also, on the amp board C705/C706 and C707/C708 are all 100uf 35V caps. However the caps at C705&C706 are physically different than the caps used at C707/C708. Did they do this for a particular reason or can they all be replaced with the same cap?
 
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Thanks for the information Tom, I appreciate the the help.

I will get those stacked film caps for C701 & C702, but it looks like WIMA film caps are out of stock so I will go with electrolytic caps at C401 & C402.
 
I'm part way through this project. So far I recapped the power board first, then the preamp board and finally one channel on the amp board. I made sure the receiver was working properly before going on to the next board.

I do have a question though:

There is no adjustment for the voltage on the power board, but are there jumpers to check the voltage?

Thanks again
 
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