On 2019/09/10 2:59 a.m., Dave Riddle (Technical Dept.) wrote:
Standard procedure since the '80's except the camera. Used an AgA Thermovision 750 with it's inconvenient loose liquid nitrogen.
On 9/9/2019 7:02 PM, davids@oz.net wrote:
So I have an MCR board set which roasted the inductor on the +12v rail.
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A friend has lent me a dedicated Flir camera and I thought it would be great for doing exactly the above. The problem is it is an older one that takes up to five minutes to stabilize and by then I've usually found the problem...
It was nice trying it on an Atari pinball MPU that some idiot had plugged in the solenoid connector to the switch jack. The fifteen or so blown ICs stood out easily against the background! What is interesting is that a number of digital cameras will work in the IR range, so I've thought of getting a visible light filter whenever I again order some lens from Edmonds to play with some of my cameras to see how far they actually see. I have used camera phones for checking IR diodes (including laser diodes on CD players) and the older iPhones worked for that - which was handy for troubleshooting trough optos. John ;-#)# -- How to subscribe or unsubscribe from TTL http://seven.pairlist.net/mailman/listinfo/techtoolslist _______________________________________________ Techtoolslist mailing list Techtoolslist@flippers.com https://pairlist7.pair.net/mailman/listinfo/techtoolslist FTP site is: ftp://ttl.arcadetech.org/TTL/Test_Equipment Archive site: http://seven.pairlist.net/pipermail/techtoolslist/