Hp 54110D scope, help!

Aug 09, 2005 2 Replies
A

Okay, I bought this semi-dead HP 54110D scope hoping the problem was something obvious, like a bad power supply, blown fuse, or broken power switch. No such luck, all power supply voltages are very close. The CRT is blank, but it has a static charge on the screen and momentarily lights up when I turn the power off and back on, so it's probably okay. But no screen display, and it doesnt boot or beep or anything. Most of the test points on the CPU card show nothing at all.



I have the service manual on order, but until it arrives, anybody have any suggestions?



Thanks,



George



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T

George,

looks like a faulty processor board. The design is proprietary, so there is hardly a chance to get things back to work.

You can try to look for a junker scope in ebay (make 1 out of 2 method), or simply sell it as a junker. It' an old scope, 1 GHz sampling mode, appr. 40 MS/s AFAIR.

So if you are not on it as a collector, but as a hobbyist user: My recommendation would be not to waste time for a repair.

hth, Andreas

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A

Thanks for the info. I wonder if the CPU is a 68000 -- it has the Motorola logo on it but an HP part number. Wouldnt be the only time a HP 1820-series IC is just a common IC, relabeled. Wonder who they thought they were fooling?

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