Brufnus Posted November 17 Share Posted November 17 Hi, I have this broken off component from a YD-580 5 1/4" 360K floppy drive, which I haven't been able to identify. Never seen this type before I think, but it seems it should be a capacitor, anyway. Any suggestions? Quote Link to comment https://forums.atariage.com/topic/375555-problem-identifying-a-5-14-floppy-pcb-component/ Share on other sites More sharing options...
+Ksarul Posted November 17 Share Posted November 17 Most likely a 1 uF, 35V tantalum capacitor, as the positive pole is identified. 1 Quote Link to comment https://forums.atariage.com/topic/375555-problem-identifying-a-5-14-floppy-pcb-component/#findComment-5567101 Share on other sites More sharing options...
HOME AUTOMATION Posted November 17 Share Posted November 17 I'm going with, Full-wave rectifier bridge... Quote Link to comment https://forums.atariage.com/topic/375555-problem-identifying-a-5-14-floppy-pcb-component/#findComment-5567107 Share on other sites More sharing options...
Brufnus Posted November 17 Author Share Posted November 17 6 minutes ago, Ksarul said: Most likely a 1 uF, 35V tantalum capacitor, as the positive pole is identified. Yep, that's also what I was considering... the 1/35 indicating 1 uF 35V. Thanks for your reply! 😃 Quote Link to comment https://forums.atariage.com/topic/375555-problem-identifying-a-5-14-floppy-pcb-component/#findComment-5567109 Share on other sites More sharing options...
Brufnus Posted November 17 Author Share Posted November 17 3 minutes ago, HOME AUTOMATION said: I'm going with, Full-wave rectifier bridge... Thanks! I don't think so, though... it has only two legs and looks different from these. c".) I believe, as Ksarul also suggested, that the 1/35 indicates 1 uF/35V and thus, a capacitor. 2 Quote Link to comment https://forums.atariage.com/topic/375555-problem-identifying-a-5-14-floppy-pcb-component/#findComment-5567111 Share on other sites More sharing options...
Brufnus Posted November 17 Author Share Posted November 17 (edited) 16 minutes ago, Ksarul said: Most likely a 1 uF, 35V tantalum capacitor, as the positive pole is identified. I'll purchase a couple of these, mount them and see what happens (the neighbour to this fellow was missing completely; perhaps the reason why the drive was malfunctioning in the first place - also had some broken drive select header pins, so it's been exposed to some violent handling at some point). I'd love to get it fixed though. Edited November 17 by Brufnus Quote Link to comment https://forums.atariage.com/topic/375555-problem-identifying-a-5-14-floppy-pcb-component/#findComment-5567115 Share on other sites More sharing options...
Stuart Posted November 17 Share Posted November 17 Is it this drive? https://www.ebay.com/itm/305750876811 Quote Link to comment https://forums.atariage.com/topic/375555-problem-identifying-a-5-14-floppy-pcb-component/#findComment-5567202 Share on other sites More sharing options...
Brufnus Posted November 17 Author Share Posted November 17 2 hours ago, Stuart said: Is it this drive? https://www.ebay.com/itm/305750876811 Yes, that's the exact model! c",) Quote Link to comment https://forums.atariage.com/topic/375555-problem-identifying-a-5-14-floppy-pcb-component/#findComment-5567313 Share on other sites More sharing options...
Stuart Posted November 17 Share Posted November 17 And the exact same broken capacitor (in the 7th picture)? Quote Link to comment https://forums.atariage.com/topic/375555-problem-identifying-a-5-14-floppy-pcb-component/#findComment-5567354 Share on other sites More sharing options...
Brufnus Posted November 17 Author Share Posted November 17 (edited) Yep! I didn't see that one until after my reply. The drive in question lacks them both now; the one "behind" this one - towards the center - was completely missing. Not sure though, if they're both 1uF... but I suppose they are. Edited November 17 by Brufnus Quote Link to comment https://forums.atariage.com/topic/375555-problem-identifying-a-5-14-floppy-pcb-component/#findComment-5567358 Share on other sites More sharing options...
+Ksarul Posted November 18 Share Posted November 18 3 hours ago, Brufnus said: Yep! I didn't see that one until after my reply. The drive in question lacks them both now; the one "behind" this one - towards the center - was completely missing. Not sure though, if they're both 1uF... but I suppose they are. Do note that the component behind C-2 (which is now definitely suspected to be a 1uF 35V Tantalum capacitor) is a Resistor (R17) not a capacitor. You may be able to pull the value from the picture: it looks like it might be Blue-Gray-Red-Gold, which would be 6.8K Ohms, of course the Blue might be faded Violet (making it 7.8 K Ohms), and even the Gray might be Green (changing it to 7.5 or 6.5 K Ohms). The fuzz/light on R-17 is not good enough for an absolute color determination. . . Here's one with C-2 in place, but R17 is completely hidden in the picture. I'm still thinking Blue-Gray-Red-Gold is right though, based on a few other pictures I've seen that were not much different than what we have already. 1 Quote Link to comment https://forums.atariage.com/topic/375555-problem-identifying-a-5-14-floppy-pcb-component/#findComment-5567445 Share on other sites More sharing options...
Brufnus Posted November 18 Author Share Posted November 18 7 hours ago, Ksarul said: Do note that the component behind C-2 (which is now definitely suspected to be a 1uF 35V Tantalum capacitor) is a Resistor (R17) not a capacitor. You may be able to pull the value from the picture: it looks like it might be Blue-Gray-Red-Gold, which would be 6.8K Ohms, of course the Blue might be faded Violet (making it 7.8 K Ohms), and even the Gray might be Green (changing it to 7.5 or 6.5 K Ohms). The fuzz/light on R-17 is not good enough for an absolute color determination. . . Here's one with C-2 in place, but R17 is completely hidden in the picture. I'm still thinking Blue-Gray-Red-Gold is right though, based on a few other pictures I've seen that were not much different than what we have already. Indeed, but it's not the capacitor in that photo. C-2 is the same component indeed; however, those in question are located near the edge connector and positioned right next to each other. I actually found an identical drive from the States relatively cheap on ebay and decided to buy it, although I have enough 5 1/4" drives for some time (manufactured by YE Data too, but actually sold - and labelled - as a Texas Instruments drive for some reason, which was one of the reasons I couldn't resist it, haha) Anyway, I think I should be able to spot the value on the 2nd cap despite their proximity. I also think I made a mistake when ordering new ones; I didn't look properly at the specs in time, and they turn out to be 1,5uF rather than 1 uF... don't know if that would cause any problems on the pcb. If so, I'll have to re-order of course. Quote Link to comment https://forums.atariage.com/topic/375555-problem-identifying-a-5-14-floppy-pcb-component/#findComment-5567606 Share on other sites More sharing options...
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