neil_grant Posted January 12, 2018 Share Posted January 12, 2018 ...it's stopped working - I heard a faint 'fizz' noise. The power switch feels different, but stll activates the unit if held 'in'. Has anyone else had this problem? maybe I can clean the switch myself?? Link to comment Share on other sites More sharing options...
Ed_Ingold Posted January 12, 2018 Share Posted January 12, 2018 Not on a Nikon scanner (yet), but I've had many switches go bad. Some are even intermittent as you describe. It should not be hard to open the case and diagnose or replace the switch, which is probably a standard item available from Nikon or the web. 1 Link to comment Share on other sites More sharing options...
wogears Posted January 12, 2018 Share Posted January 12, 2018 Nikon Super Coolscan LS-9000 disassembly procedure 1 Link to comment Share on other sites More sharing options...
mike_halliwell Posted January 12, 2018 Share Posted January 12, 2018 Cynically, it's a odd 5 pin switch unique to Nikon that has to come from Tokyo for £45 + £12 delivery. Equally, you should be able to find something suitable for ~£4.... (EDIT...or maybe NOT:() I've got a Coolscan 5000ED I occasionally use, the switch has that click-in to latch and click again to release. Should be a very simple ON-OFF latching switch. EDIT. (Pic 4) Is that a bizarrely long push rod going the full length of the body to a far-off circuit board, with a small spring half way?? Link to comment Share on other sites More sharing options...
Andrew Garrard Posted January 12, 2018 Share Posted January 12, 2018 It might still be the switch at the far end of that pole which has failed, and you should be able to find a replacement of some sort relatively cheaply if you don't care about it being a perfect fix. Nikon really didn't want anyone getting electrocuted, did they? I remember the good old days of an idiot colleague trying to turn on a bare PC AT power switch with damp hands. (For young whippersnappers, before ATX, mains power ran through the switch. Which never went wrong...) Link to comment Share on other sites More sharing options...
JDMvW Posted January 12, 2018 Share Posted January 12, 2018 Thanks, I had missed the Coolscan cleaning and dessembly posts before... Link to comment Share on other sites More sharing options...
rodeo_joe1 Posted January 12, 2018 Share Posted January 12, 2018 Looks like the power switch is the grey PCB-mounted one with an orange plunger. Also looks like it's a latching type (push-on, push-off). Chances are the latching mechanism has gone faulty. Get online and search for PCB mounted latching switches. I'm pretty sure you'll be able to find something similar, if not identical. Make sure it's mains rated - 120v or 240v AC, depending on your region. Another alternative would be to discard the stupid foot-long plunger and mount a simple 2 pole rocker switch on the back panel, with mains-rated wire running back to the PCB. Link to comment Share on other sites More sharing options...
neil_grant Posted January 15, 2018 Author Share Posted January 15, 2018 thanks guys. Looks like only the switch has gone bad. Looking a various options. 1 Link to comment Share on other sites More sharing options...
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