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Hi Guerrino, Congratulations for your finding! I had a similar problem in my HP-8672A. I bought it as 'unworking' at eBay... and, yes, it didn't work ;-). It is a very complex unit and I was afraid of

Hi Jose, the issue is found, the problem came from the RF section , there is a signal named HPON , normally this signal is 5V and is coming from the 5.2V power supply RF section , the signal was

Sold. Thanks to all who inquired.

<willcoele@...> wrote: I have encountered this also.

I have three 204B oscillators I'm restoring. One had a problem where C2 (the 3 section, 1% capacitor) had a shorted section. I replaced the shorted section with single 1%, .3uF. Close enough for the

I've done the PIC version some years ago for an HP analog spectrum analyzer with X, Y and Pen Lift outputs. Worked reasonably well. The algorithm holds a do nothing loop waiting for the pen lift

It is still useful information! Thanks to all. I have a Velleman two channel digital scope that runs on the USB on a computer. It will do X-Y and I may try that for the units that have analog outputs.

Interesting and informational! Thanks, Greg

ferrymanr wrote: Me too! I recently "repaired" a Tek 7B53A and a Fluke 8600A with about $0.10 worth of contact cleaner generously applied to the switches. Both units were EBay "Parts - not working"

Hello, I have an HP3468A that appears to have a bad control ROM. The unit just cycles between power up (lights up all elements on the display and a brief display of: OV.LD C:3111 and repeat. The

I have a customised nozzle for my aerosol can of contact fluid. I still have the supplied 10cm length of tube but have fitted a hypodermic needle to the end. This allows me to get a little fluid into

Most units did not come with complete service manuals. They had to be purchased separately. I believe HP has made all their old manuals public domain. Actually I believe they have been requesting any

Agilent controls all copying and distribution of their manuals. They will license you if you contact them through the proper channels with certain stipulations as to what you can and can not

A simple question to anyone who may know: what are the legalities of copying HP service manuals? Some of them seem to be in the public domain, since they are offered on the HP information web site.

I use a HP plotter to draw pcb layouts. I made an adapter from an old pen to hold a CD marker. It plots straight at the PCB and after plotting it is going in the stuff that solves the copper. I made a

So I looked up the 4815A and it does not have a screen. My reply below was only meant for instruments with a screen. Sorry To: "hp_agilent_equipment@..."

If the 4815A has the ability to dump the plotter sequence (HPGL) into a file you can create an image from that, or feed it to the Agilent Screen capture program to create the image for you. ? Look

For instruments that use an HPIB plotter, a Prologix USB-HPIB adapter and John Miles' 7470 program. Once the plot is in your computer you can then print it on any printer your computer works with, or

Congratulations Dick! It might be helpful to the rest of us to know the details of how you injected the cleaner. Did you drill a hole into the case? Or??? Cheers! Greg

What do you use to record outputs from HP test equipment? I have two plotters (7045B single & 7046B dual pen) but I simply use my camera to photograph the screen. The thought of ink and paper is a