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Old 13th Nov 2019, 11:31 pm   #11
joebog1
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Join Date: Jun 2015
Location: Mareeba, North Queensland, Australia
Posts: 2,704
Default Re: Philips/Fluke Oscilloscope

I did find the complete manual here:

http://www.qsl.net/vk5bar/AHARS-Reso...e%20Manual.pdf

195 pages.

The power supply board wont come out until the carry handle is removed!! There is even a large hole in the PCB to accommodate the handle. Removing the circlip that holds the handle on the power supply side is also a frustrating thing.
The RIFA cap hasnt blown yet but does have the crazed cracks all over it so it will be replaced. As one can see, there are lots of caps to be replaced. This CRO is from about 1991 so 30 years I would expect most of the smaller caps to be a bit weak on ESR. I will now have to order the bits, as I dont keep many sand voltage rated caps on hand. As usual Philips have used MOSTLY 68 uF, 680 uF and 6800 uF, a value thats not so easy to come by.

Ill keep you posted

Joe
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