ohgoshjosh
New Member
First time posting, short time lurking. Found a lot of very helpful info to repair and recap my SX-3700. This all started when I noticed the speaker protection relay loudly clicking, and eventually failing completely to push power to the speakers. I thought replacing that relay would have done the trick, but if I had read these forums more closely, I would have found out my problem likely lies elsewhere.
That brings me here, where I'm going to attempt to recap the Power Amp, document my process, and hopefully learn a few things in the process. I haven't seen a ton of SX-3700 recap threads on AK, so I hope this might be helpful to others in the future. I've read the 3700 Service Manual and the Tuning Fork guide on Pioneer caps.
First, here's a draft of my cap list. I'd appreciate any feedback folks have here. I'm a bit unclear about the difference between Nichicon caps that end with 1TD,1TA vs no suffix after M[x]D.
2x ACH-215; 8200uF/50VDC; 647-UKW1H103MRD
2x ACG-004; 0.01uF/150VDC;
2x CEA R47M 50L; 0.47uF/50VDC; 647-UKW1HR47MDD
3x CEA 010M 50L; 1uF/50VDC; 647-UPW1H010MDD1TD
1x CEA 470M 10L; 47uF/10VDC; 647-UPW1A470MDD
1x CEA 470M 25L; 47uF/25VDC; 647-UPW1E470MDD
3x CEA 470M 50L; 47uF/50VDC; 647-UPW1H470MED
3x CEA 101M 50L; 100uF/50VDC; 647-UPW1H101MPD
1x CEA 221M 35L; 220uF/35VDC; 647-UPW1V221MPD
1x CEA 221M 50L; 220uF/50VDC; 647-UPW1H221MPD
1x CEA 331M 10L; 330uF/10VDC; 647-UPW1A331MPD
2x CEANL 100M 50; 10uF/50VDC; 647-UKL1H100MDDANA
2x CEANL 2R2M 50; 2.2uF/50VDC; 647-UKL1H2R2MDDANA
2x CEANL 4R7M 50; 4.7uF/50VDC; 647-UKL1H4R7MDDANA
2x CEA 4R7M 50L; 4.7uF/50VDC; 647-UPW1H4R7MDD
2x CEA 100M 50L; 10uF/50VDC; 647-UPW1H100MDD
2x CEA 220M 25L; 22uF/25VDC; 647-UPW1E220MDD
2x CEA 101M 35L; 100uF/35VDC; 647-UPW1V101MPD
That brings me here, where I'm going to attempt to recap the Power Amp, document my process, and hopefully learn a few things in the process. I haven't seen a ton of SX-3700 recap threads on AK, so I hope this might be helpful to others in the future. I've read the 3700 Service Manual and the Tuning Fork guide on Pioneer caps.
First, here's a draft of my cap list. I'd appreciate any feedback folks have here. I'm a bit unclear about the difference between Nichicon caps that end with 1TD,1TA vs no suffix after M[x]D.
2x ACH-215; 8200uF/50VDC; 647-UKW1H103MRD
2x ACG-004; 0.01uF/150VDC;
2x CEA R47M 50L; 0.47uF/50VDC; 647-UKW1HR47MDD
3x CEA 010M 50L; 1uF/50VDC; 647-UPW1H010MDD1TD
1x CEA 470M 10L; 47uF/10VDC; 647-UPW1A470MDD
1x CEA 470M 25L; 47uF/25VDC; 647-UPW1E470MDD
3x CEA 470M 50L; 47uF/50VDC; 647-UPW1H470MED
3x CEA 101M 50L; 100uF/50VDC; 647-UPW1H101MPD
1x CEA 221M 35L; 220uF/35VDC; 647-UPW1V221MPD
1x CEA 221M 50L; 220uF/50VDC; 647-UPW1H221MPD
1x CEA 331M 10L; 330uF/10VDC; 647-UPW1A331MPD
2x CEANL 100M 50; 10uF/50VDC; 647-UKL1H100MDDANA
2x CEANL 2R2M 50; 2.2uF/50VDC; 647-UKL1H2R2MDDANA
2x CEANL 4R7M 50; 4.7uF/50VDC; 647-UKL1H4R7MDDANA
2x CEA 4R7M 50L; 4.7uF/50VDC; 647-UPW1H4R7MDD
2x CEA 100M 50L; 10uF/50VDC; 647-UPW1H100MDD
2x CEA 220M 25L; 22uF/25VDC; 647-UPW1E220MDD
2x CEA 101M 35L; 100uF/35VDC; 647-UPW1V101MPD