October 13, 200817 yr Thread for discussion of the Shiguraki clone "Shigaclone" CD transport JVC RC-EZ31 boombox... time for some DIY transport fun I have a couple at my friends place in Canada I should get them shipped sometime... Edited October 14, 200817 yr by deepak
October 14, 200817 yr I have a couple at my friends place in Canada I should get them shipped sometime... It could be a fun project but the weak ISK is killing me so it will be that much more expensive to do. Should be nice and compact though when all is said and done. Edited October 14, 200817 yr by deepak
October 14, 200817 yr That one is a bit over the top. I have access to quite a bit of scrap wood so I'll probably use some of that as a chassis with a laser cut top panel.
October 14, 200817 yr Author That one is a bit over the top. I have access to quite a bit of scrap wood so I'll probably use some of that as a chassis with a laser cut top panel. Just make sure you use a manly wood.
October 14, 200817 yr Just make sure you use a manly wood. Ehhh ok... In the mean time it is working just fine off a PC918 (huge 6volt) battery plugged into the computer rig. Very nice sound so far...
October 14, 200817 yr Ehhh ok... In the mean time it is working just fine off a PC918 (huge 6volt) battery plugged into the computer rig. Very nice sound so far... yup, yup, yup. I have 2 transports so I can compare the mods side by side. This is the best way to do things, IMHO.
October 14, 200817 yr yup, yup, yup. I have 2 transports so I can compare the mods side by side. This is the best way to do things, IMHO. It does sound very impressive indeed so I'm thinking about using batteries in it full time but I'll build a 7808 PSU as well to test it out. What value of resistor did you use for the display led and did you do the full mods? Right now I'm using it stock except I removed everything except the PSU reservoir cap and the digital output doesn't have any resistors on it.
October 14, 200817 yr It does sound very impressive indeed so I'm thinking about using batteries in it full time but I'll build a 7808 PSU as well to test it out. What value of resistor did you use for the display led and did you do the full mods? Right now I'm using it stock except I removed everything except the PSU reservoir cap and the digital output doesn't have any resistors on it. I removed all the ceramic bypasses, replaced the crystal with the Citizen, replaced everything in the original PDF with Black Gates, added another purple Black Gate to bypass the PSU where it enters the board, settled (I think) on a MKP1830 for the 10nF cap, removed the inductor on the board, did the BG|7808|BG psu with the recommended MSR/MUR diodes, added a custom R-Core transformer. I haven't done anything with the LCD yet... working on a case at some point is my next step. Should we start another thread? Also, have you heard the original 47 labs player?
October 14, 200817 yr Author Thread for discussion of the Shiguraki clone CD transport. Will move posts from the "post what you bought thread"
October 14, 200817 yr Thread for discussion of the Shiguraki clone "Shigaclone" CD transport I have a couple at my friends place in Canada I should get them shipped sometime... Let me know when you need my address, and I'll pm it to ya
October 14, 200817 yr I removed all the ceramic bypasses, replaced the crystal with the Citizen, replaced everything in the original PDF with Black Gates, added another purple Black Gate to bypass the PSU where it enters the board, settled (I think) on a MKP1830 for the 10nF cap, removed the inductor on the board, did the BG|7808|BG psu with the recommended MSR/MUR diodes, added a custom R-Core transformer. I haven't done anything with the LCD yet... working on a case at some point is my next step. Should we start another thread? I'm thinking about filling it with BG's and installing the clock as well. I'll probably start on the chassis though after knocking up a simple 7808 PSU. Battery power would be a real contender since the transport doesn't need all that much juice. If you've got any surplus parts from your mods then you know where you can send them... Also, have you heard the original 47 labs player? Sadly no. I'd love to try the Pitracer since it is truly unique...
November 22, 200817 yr This project has been dormant for a while now due to lack of time and parts but the parts arrived early this week and I finally had some free time so now my Shigaclone is riddled with Blackgates. Since I couldn't pick up a LM7808 regulator before the weekend I'm still running off a 6v battery so the main 470uF reservoir cap is still in place and so is the critical 0.1uf electrolytic. The PSU should be done this week and then I'll replace the 0.1uf cap and remove the main reservoir cap as well. I'm using three 47uF/50v N and two 4.7uF/50v PK BlackGates for now and a Riken 390ohm resistor on the output plus a Caddock MK132 91ohm as a shunt to lower the output level. First impressions are good with the bass leaner then before but much more natural. The treble is more extended and less harsh with far more detail retrieval. Total cost is under 300$ for two units with parts to spare.
November 25, 200817 yr Up and running with the 7808 PSU. The heatsink on the PSU should perhaps have been a bit bigger with it's temp at 15
November 25, 200817 yr looking good. Does that big Black Gate get in the way when the laser is near the center of the CD?
November 25, 200817 yr I put that Blackgate on the bottom of the PCB so it wouldn't be in the way. It adds another 10mm or so to the height but that's no problem.
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