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About reverendshoebox

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  1. Hey all. Not sure if anyone here has done much with the Panasonic J-200U. I've got one that was working last time I fired it up several years ago but now, although the power light comes on, I get no signal through the RF switch. I also tried hooking up directly to a monitor using what I believe to be the composite and ground pins on the display port (with some trial and error) and still nothing. I get a slight difference in the video output but nothing real. Took the thing apart and the capacitors all look fine. Not sure where to go from here. Any thoughts? -=ShoEboX=-
  2. Hey all. So, one of my precious Wico Command Control joysticks recently started getting all floppy-like, and upon disassembly I discovered it was because the rubber in the grommet had hardened and come apart. It looks like there were replacements for these made a few years ago but they're out of stock pretty much everywhere. Someone has "new old stock" on eBay but I suspect these will have (or will soon have) the same issue, and they're a bit pricey. Has anyone here had any luck finding a replacement for these recently? I'm contemplating trying to rebuild the rubber part with Sugru. This seems like a desperate measure, but pointing at the broken grommet and screaming isn't helping. Thanks, -=ShoEboX=-
  4. There's YouTube tutorials up the wazoo on repairing all kinds of common issues with old systems and doing various mods and such. What held me back for the longest time was that I couldn't solder worth a damn, but investing in an actual GOOD soldering iron and watching a few instructional videos helped a lot there. Figure out what you need to know, learn it, and give it a shot. It's surprisingly fun bringing old relics back to life. -=ShoEboX=-
  5. Ok! Replaced the fuse, 7805, and cap. Getting 5V on the right pin of the 7805. Throw in a cart, turn the thing on, aaaaaaand...VOILA! Thank you guys so much for the help! -=ShoEboX=-
  6. Finally got around to replacing the 7805 and capacitor, at which point I realized that somewhere in the midst of these adventures I'd managed to blow the fuse. So I ordered some fuses and I now await those. GAAAAAAH SHOEBOX WANT MAKE THING WORK.
  7. I'm with ya, it'll be a nice surprise when and if he gets back to this. My basement is chock full of half-finished projects, most of which won't benefit anyone but me, so complaining would be beyond hypocritical. -=ShoEboX=-
  8. *looks wistfully at broken Microvision* *hits "refresh"* *looks wistfully at broken Microvision* *hits "refresh"* *looks wistfully at broken Microvision* *hits "refresh"* *looks wistfully at broken Microvision* *hits "refresh"* *looks wistfully at broken Microvision* *hits "refresh"*
  9. Ordered new 7805 and 1000uF capacitor, planning to replace both. Will update with status. Thanks, all. -='Box=-
  10. I'm getting a full 10 volts on all three legs of the 7805. I suspect this is...um...bad. Yes? Greatly appreciate the help. I actually have an EE degree but I've been in software for 21 years and I've forgotten nearly everything but the terrible Ohm puns. -=ShoEboX=-
  11. I've tried a SMS supply (9V 1A) and TurboGrafx power supply (10.5V 730mA I think.) Polarity's correct on both. Power is definitely getting at least from the supply into the board, I've verified that much. Thanks, -='Box=-
  12. Haven't checked the chips for 5V yet. I'll do that. And no, no black screen. And any idea how I verify a 7805 regulator is functional? Thanks muchly for the response. -='Box=-
  13. Actually Japan uses 200V and NTSC, so not an issue. I thought Japan was PAL too for some reason, but nnnnnope.
  14. Hey guys. I purchased a broken Famicom during a recent trip to Japan, and I've been trying to figure out what the heck's wrong with it. I get absolutely nothing when I turn it on - I'm using an Atari RF switch and I've tried the TV on channels 95 and 96, but no dice. From my research so far, it sounds like the most likely things to go on these are the power switch, the fuse on the power/RF board or the 7805 regulator (also on the power/RF board.) My multimeter confirmed the power switch and fuse are fine - but how would I go about checking the regulator? And if replacing that doesn't do the trick, what's next? Thanks a lot, -=ShoEboX=-
  15. I'm still in for two. Thanks again! Psyched about getting my Microvisions working again! -=ShoEboX=-
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