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Yeah, you can't replace all the caps for under $25. I don't think there is much chance of finding a schematic as there were contract units. There must be one of these supplies on the UK ebay site.

i think i will try and sort the money to get one shipped over to the uk (PSU). once that is safely here then i will look at 'tinkering' with the broken one.i dont yet have the confidence to go messing

Hi: Ridge Quipment (www.ridgeequipment.com) has lots of these PSU for about $25. I keep a few spares for my 16500Cs. They are easy to swap out and impossible to fix. Tom Leedy Clarksburg, MD 20871

That may mean a simple repait. Look at the mains rectifiers, internal fuse, caps. And be careful. There should be several hundred volts DC in there. Also, look at "soft start" components, like NTC

Hi. I am in need of a PGA-to-PLCC adaptor for use with my HP 16500C logic analyzer. The HP part or model number is E2434-63201. Does anyone have one available that they would like to sell or does

ok made sure the lead is correct one. pulled all the cards out and still no fans or anything else. only led that is lit is the AC led. the 120v led isnt lit. not sure where the video lead is, but will

I'm also thinking of allowing replacement of built-in CRTs. I have a LeCroy 9354AL where I could tap into the video signals that go to the monitor to get an idea of bandwidth and other

FYI: I've just got specs for 8566/68 SAs, and their X/Y outputs have 75ns risetimes. That is about 5MHz of bandwidth, so any suggestions to use audio or similar low bandwidths will be of no use. The Z

Ridge Equipment is in my backyard so to speak. They are a very good group to deal with. Tom

I'll echo that. BTW, silly question: Are you usaing the correct line cord? -John ================

As suggested, remove all the cards and see if the supply will come up. It could be something simple. Are you getting an overvoltage or overcurrent light? Just to check, is the voltage switch correctly

A spring or bulb desoldering unit is ok for a connection or two, along with Solder-Wick, but it's really not suited for pulling all the componrents off a PCB. You really need something like a Pace if

thanks for all the sugestions!! it will take me a little while to work through them all, to answer the question on test equipment avaliable, i have managed to gather a few basics, so i have a fairly

The same power supply is used in the 16500A, 16500B, 16500C mainframes and the 16501A expansion frame. Here's one in the US for $25, but then it cost another $60 for shipping ot the UK.

any other humans that live less than a days travel away please speak up Doesn't that put pretty much anybody in the UK within range? Shotgunning is not a good idea, especially irf you don't have good

Can you give us some detail as to what test equipment you have access to? Do you have a scope? a DMM? Maybe you could send the supply to someone who has the ability to test and repair it.

Hi Jason, I'm in Cambridge (UK not MA) so only 5 hours away ;-) I'd concour with the other's comments, it's worth working on. First remove all input/output cards and put them away somewhere safe. You

Jason, ? You might want to start by identifying all the power supply rails and do some simple resistance readings which might lead you to shorted caps etc.? Service documentation would be my first

unfortuanately i live in the middle of nowhere!! so borrowing equipment isnt an option :( i live in the uk near northlew devon so if there are any other humans that live less than a days travel away