Electronics > Repair
Fluke PM6666 counter freezing after 3 seconds from turning on.
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pizzigri:
That is a wealth of information, thank you!
I will check it out immediately. Frans, I'll PM you immediately!
pizzigri:
So. I found an ebay listing with the ever slippery service manual:
https://www.ebay.it/itm/PHILIPS-Timer-Counters-PM-6665-and-PM-6666-Service-Manual-2nd-Edition/324162530080?hash=item4b7997ab20:g:aiQAAOSwVkVeuMGp

I can't justify the price being asked though it is the one that is indeed complete (120+ pages), with this reference

PHILIPS Timer / Counters PM 6665 and PM 6666 Service Manual
90-10 2nd Edition
9499 465 01311
coromonadalix:
@pizzigri     or you buy it,  and you ask for a few $$$  when people need the schematics ???
pizzigri:

--- Quote from: coromonadalix on September 18, 2020, 05:30:05 pm ---@pizzigri     or you buy it,  and you ask for a few $$$  when people need the schematics ???

--- End quote ---

Price  + sh and duty is almost 60 Euro, too steep for me...
pizzigri:
Ok, so I got a bargain Philips PM6669 with GPIB option installed. I figured I’d have a “quick-n-dirty” stand-alone counter for casual use and one for more serious work, connected to a PC.
Argh. The transplanted GPIB i/f board freezes the PM6666 just the same. When I mounted the, assumed broken, board from the original Fluke PM6666 on the 6669, no problem. At this point I am sure the fault lies in the PM6666, as it freezes no matter what, including connected or not , and besides it came to me that way from the seller.
There must be something that crashes exactly three seconds after boot. Self test is OK. Maybe  the GPIB board init? Can someone point me in a direction? What to do? Unfortunately I am not a EE but just a hobbyist, so very complex things (and fundamentally equipment....) are a bit out of my reach.
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