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Joe, The Ramtron chips are surface mount. I do not have the adapter from DIP to surface mount. I have the Dallas chip. That is in a socket. Mark

In a fit of nostalgia I watched the PBS production of Ursula K. Le Guin's Lathe of Heaven from 1979. The dream Augmentor used to control the main characters "effective dreams" contains a Tek 465 or

The 3A7 I just bought is missing its 10-Turn counting dial. The Tek part for this is: "331-0152-00, DIAL, w/o brake". Does anyone know if this part can be replaced by the common Bourns10 turn counting

I just managed to pick up a 3A7 plugin from ebay that I'm hoping to resurrect. One of the first things I noticed about it is that the connection to one of the 8608 plate caps has just been soldered in

Mark, My programmer will support a Ramtron FM16W08-SG and FM16W08-SGTR. Both are reported to be SOIC 28 packages. I'll have to check to see if I have a socket module that will support SOIC 28

Joe, From what I found, a FM16W08 is supposed to work. Thanks. Mark

[email protected]> wrote: Ooops - no NVRAM in your scope, you have the one with the discrete RAM chip. ... and the discrete RAM write protection circuitry on this scope. This protects the RAM from

When the scope is on, you shouldn't be drawing on the battery at all, so 0V is reasonable. When the scope is off, you should measure 10mV per 1uA drawn on the battery. According to a random TC5564PL

Mark, I have not seen a response to your posting. I am able to read, archive, and program a Dallas DS1225Y. I also have some support for Ramtron chips. Can you give me any detais about what

Looking for 5% replacements for Tektronix 308-0685-00 FG501 R475,424, 446 BW20-1R500J Wire wound, 1 Watt 150PPM TT Electronics SP20F1R50JLF or SP201R50JLF. -- Jeffeelcr

The calibration constants are simply stored with all the other data in the 8K NVRAM chip, there's no hardware write protection against MPU malfunction. The rest of the RAM is used for the MPUs stack,

If you run the self test enough times, it may give you a reference designation of the at-fault chip IE U413. Keep in mind that the DMUX chips for each channel are not consecutive. From the edge of the

So to re-visit this issue I have been looking for the test failure mode. With both auto diagnostics and a manual step-through I consistently get a Calibration Data test failure (Test 04) and the

I ran the self test and got this error: "ERROR: diagnostic test failure, digDataFormatDiag, ERROR!!BYTE mode, in demux 198 ,i= 20 memBaseAdr 0x730002a= data = ffffb400, expectedData[i] =

Running the full self test from the utility menu should reveal whether any memory chips are bad. Looks like it could be faulty ram. I've replaced a lot of the 1Mb parts over the years, for some reason

Hi all, I recently acquired a TDS794D and am having an issue with Channel 2 and a slight issue on Channel 1. It was originally failing the boot self-test with a "ERROR: diagnostic test failure,

Welcome.

Hi Matt, Addressing power supply issues will hopefully fix the issue. If you still see the same behavior after PSU fixes you can check "Z Axis Out" voltage (right side of R856) in sheet <6>. In XY

Thanks Ozan, I can't see any changes at those test points when the horizontal position is manipulated. Ripple is within spec. Another poster led me to some more problems with the power supply.

I don't have any options. I'm using 2 roundhead screws without washers to attach the top shield to the power supply assembly.