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 Post subject: edit: SP 303 rca repair?
PostPosted: Tue May 31, 2016 6:22 pm 
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The right channel of the RCA output went out on me today, and I tried opening it up to have a look, and I have no clue what I'm doing. I don't want to risk damaging it. I've been digging through threads, and I haven't found anything helpful.


Last edited by featherbend on Thu Jan 05, 2017 6:05 am, edited 1 time in total.

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 Post subject: Re: How do you remove the SP 303 faceplate?
PostPosted: Mon Jun 20, 2016 5:39 pm 
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Flip it over, remove the screws with a crosshead screwdriver, pull the volume and control knobs up and off, lift faceplate off. The motherboard is connected by wires to the unit by wires so don't yank on that too much. The rca deal is right there when you open it so if you can solder it will be simple to replace.

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 Post subject: Re: How do you remove the SP 303 faceplate?
PostPosted: Thu Jan 05, 2017 6:01 am 
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I attached a few pictures of my SP 303 opened up. I don't really know what I'm looking at, so I was hoping maybe one of you guys might be able to see something that I'm not seeing.

In short, the right channel of the RCA input went out around the time I originally posted this thread. I've been busy however and haven't had the time to mess with it, up until now. If anyone has some suggestions on what I can do about it, perhaps a place to have it repaired for under $50, that'd be great!

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 Post subject: Re: edit: SP 303 rca repair?
PostPosted: Thu Jan 05, 2017 11:22 am 
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try a search on this section, we posted something very similair about the RCAs

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 Post subject: Re: edit: SP 303 rca repair?
PostPosted: Sun Jan 08, 2017 5:38 pm 
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Just buy new RCA outputs, unsolder the old ones and solder the new one. Its pretty straight forward, no need to work on the whole circuitry.

How about the headphone out? Does that work on both channels or the right channel is missing too?

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 Post subject: Re: edit: SP 303 rca repair?
PostPosted: Sun Jan 08, 2017 10:08 pm 
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Ill Green wrote:
Just buy new RCA outputs, unsolder the old ones and solder the new one. Its pretty straight forward, no need to work on the whole circuitry.

How about the headphone out? Does that work on both channels or the right channel is missing too?


Yeah, the output works just fine, both the RCA output and the headphone out. It's only the RCA input that I'm having a problem with.

If I were to replace the RCA, where would I be able to acquire a new RCA inputs? Also, how much would it cost either to fix it myself, or to have it repaired by someone else?


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 Post subject: Re: edit: SP 303 rca repair?
PostPosted: Tue Mar 07, 2017 9:47 pm 
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Example of rca input being replaced on a circuit board.
https://www.youtube.com/watch?v=F028FG6Ynok

Rca input
http://www.ebay.com/itm/Dual-Input-RCA-Jack-for-Car-Audio-Amplifier-Amp-Repair-FREE-SHIPPING-FROM-USA-/182476938420

or

http://www.ebay.com/itm/Quad-Input-RCA-Jack-for-Car-Audio-Amplifier-Amp-Repair-FREE-SHIPPING-FROM-USA-/182476948798

Not too difficult, but requires a little bit of a steady hand. Just find a junk circuit board from some old broken electronics and practice unsoldering and resoldering things to it. The main thing to avoid is letting two solder points next to each other touch, this will cause the input to short out and damage the unit. I recommend some reading on electrical theory, the principals involved dictate how sounds are capture and reproduced with electronic devices, this will open a door to understanding how phase/polarity affects sounds reproduced through stereo sound systems. Stuff like mid/side listening and new creative ways to eq stereo 2-tracks without stems, which is what we find in vinyl records. Then you will start notice how people isolate certain sounds in mixed and mastered stereo sources so precisley. Anyone can make a beat but it's how you treat the sound that adds your flavor or accomplishes your goal. Sorry for the rant, but I haven't said shit on here in a while.

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