Author Topic: Phillips/Fluke PM3394 Combiscope Help (Read 10572 times)

HighVoltage · « **Reply #25 on:** January 28, 2018, 03:40:54 pm »

Here is the original FlukeView Software attached:

Download
Download the two zip files:
- FlukeView_Software-1.zip
- FlukeView_Software-2.zip
Unpack each ZIP file seperately

You will end up with 2 RAR file:
FlukeView_Software.part1.rar
FlukeView_Software.part2.rar

Unpack
Use WinRAR to unpack both files
use password: "HighVoltage"

You will end up with 1 ZIP file:
FlukeView_Software.zip
unpack this ZIP file and you will get two folder:

- FLUKE
- Fluke Ver 2 update

INSTALL
Copy the folder "FLUKE" to to C:\
Ending up with:
C:\FLUKE

Start the SETUP.EXE in the "Fluke Ver 2 update" folder
It will search for the FV33WIN.EXE in the "C:\FLUKE" folder and then update to v2 full version
Done!

HighVoltage · « **Reply #26 on:** January 28, 2018, 03:42:04 pm »

Here are a few screen shots of the software:

AutogolazzoJr · « **Reply #27 on:** January 28, 2018, 04:17:12 pm »

Thanks! May I use a 3 wire null modem cable to connect?

HighVoltage · « **Reply #28 on:** January 28, 2018, 04:55:53 pm »

Quote from: AutogolazzoJr on January 28, 2018, 04:17:12 pm

Thanks! May I use a 3 wire null modem cable to connect?

Yes, you can do that.
Make sure to use the settings in the screen shot for 3-Wire setup.
UTILITY > RS232 Setup

The PM3394B was the most stable one that supported full 38400 baud speed.
On the PM3394 and PM3394A you might need to slow down to get good results,
especially when you want to save and retrieve SETUP Data.

AutogolazzoJr · « **Reply #29 on:** February 04, 2018, 07:01:28 pm »

I was waiting for my null modem cable and rs232 pci expander to motherboard header adapter when I got impatient and simply connected the scope rs232 directly to my motherboard with little jumper wires; it worked on the first try

. Thanks to all who helped.

AutogolazzoJr · « **Reply #30 on:** February 04, 2018, 09:40:32 pm »

Sometimes the backup memory fails and my settings are lost. Is there a fix for this.
Also, I am looking to replace the bulb, possibly with an led bulb. Any drop-in for this? What bulb size?

DerKammi · « **Reply #31 on:** February 05, 2018, 07:05:15 am »

Quote from: AutogolazzoJr on February 04, 2018, 09:40:32 pm

Sometimes the backup memory fails and my settings are lost. Is there a fix for this.
Also, I am looking to replace the bulb, possibly with an led bulb. Any drop-in for this? What bulb size?

Don't know about the back up, eneloops will be my next try. Nothing wrong with mine after I replaced almost all the el. caps and some cracked MKT's.

For the bulb I found one ebay advert which is gone now but it was the following description:

Quote

T-1 (6mm) SX6s Midget Flange. Midget flange T1-3/4 indcandescent bulbs.
28V, 80mA, diameter 5.84mm, T1 3/4, length 16.1mm, clear lens colour, 10lm, 2000h.

AutogolazzoJr · « **Reply #32 on:** February 05, 2018, 02:58:02 pm »

So, using rechargeable batteries will help with the backup?

What are mkts?

HighVoltage · « **Reply #33 on:** February 05, 2018, 07:35:46 pm »

A new pair of alkaline batteries will last normally 10 years in these scope, unless they are bad types and leak.
I still have some of these PM3394B with original Philips batteries and they are still OK.

DerKammi · « **Reply #34 on:** February 06, 2018, 01:37:08 pm »

Quote from: AutogolazzoJr on February 05, 2018, 02:58:02 pm

So, using rechargeable batteries will help with the backup? What are mkts?

MKT capacitors, 2 of them on the digitizer board had cracks in them.

AutogolazzoJr · « **Reply #35 on:** February 07, 2018, 07:02:23 pm »

It happened again today. I turn on the scope, I checked both battery voltages (two of them, each 1.6v) and when I turned it on, I get a NO BATTERY BACKUP and all my waveforms are lost and I have to refocus and autocal the machine. Is there a problem with a certain chip? Something I can replace and easily have it not randomly clear the backup? I have a pm3394 with the extended memory (options for 1 channel 32k aquisition). I have looked at grumpydoc's teardown (https://www.eevblog.com/forum/repair/pm3394-can't-communicate-with-ufo/) and haven't found what could go wrong, because I know the two ROMs on the cpu board are flash chips.
Any help?

grumpydoc · « **Reply #36 on:** February 07, 2018, 07:20:15 pm »

Dodgy connection?

AutogolazzoJr · « **Reply #37 on:** February 07, 2018, 07:30:57 pm »

I'd rather it not be, I was about to break out the soldering iron! The connection is most likely the case, the terminals are dark and grimy. I will go test that out.

DerKammi · « **Reply #38 on:** February 07, 2018, 07:38:24 pm »

Clean them up with demi water. The have seen leaked batteries then, acid is still doing its thing I'm afraid after a long time.

Mine were still covered in battery acid when I bought the scope and are dark black. But after 8 weeks it holds up nicely these days.

AutogolazzoJr · « **Reply #39 on:** February 07, 2018, 07:53:50 pm »

Wups, my memory was erased as well, they were only slightly dark. Vinegar cleaned them up fine. We'll see how it performs in the following days.

AutogolazzoJr · « **Reply #40 on:** February 08, 2018, 02:10:51 am »

Definitely a problem here. One of my saved waveforms was erased to a blank trace. Perhaps a problem with one of the two flash rom chips?
Thanks

HighVoltage · « **Reply #41 on:** February 08, 2018, 08:12:14 am »

The scope is extremely sensitive to a voltage drop from the batteries.
Make sure the contacts are really clean.
I use very fine sand paper and then apply some silicone grease.

Or test the wires to the battery compartment

AutogolazzoJr · « **Reply #42 on:** February 08, 2018, 02:02:04 pm »

Sure, butg I highly doubt that the batteries turning off for a microsecond was able to wipe one waveform but leave all the settings and other waveforms intact. Is there ANYTHING else that can cause this problem?

HighVoltage · « **Reply #43 on:** February 08, 2018, 02:06:12 pm »

May be something wrong with the memory itself.
I never had that specific problem.

Howardlong · « **Reply #44 on:** August 17, 2022, 06:46:39 pm »

Quote from: grumpydoc on January 28, 2018, 01:46:50 pm

They are also pretty tolerant of swapping the A8 board between 'scopes.

Apologies in advance for necroposting...

I now have two PM3394Bs.

The first I coincidentally bought just prior to Dave's video, and it came fully loaded with Math+, extra memory, GPIB and the External connectors, but sadly CH2 & CH4 have substantial offsets in digital mode (analog is fine), indicative of a broken hybrid on the A8 board.

Anyway, another PM3394B turned up on eBay a few days ago for a reasonable price, so I ordered that one too with a view to using it as a parts scope for the first one: the eBay description detail was rather sparse, so I was expecting the worst, and it was already clear from the pics it didn't have GPIB or the External connector options. Well, despite my prejudged misgivings, it turned out to work perfectly, and furthermore it's a far cleaner unit than the first, and, like the first unit, it also has the extra memory and Math plus. Even the graticule illumination bulbs are working.

Both units have the same firmware versions (EXT-V4.0, 1996-10-02, UHM-V1.0, UFO-V2.0), but the first one has 640KB ROM with the second one having 512KB ROM, presumably due to the GPIB being missing.

So the question is, do I take the working A8 digitiser board out of the new clean scope to fix the fully loaded but aesthetically displeasing first scope, or move the appropriate boards, daughter boards and connectors from the grotty example to the clean unit?

Bonus question: is there any significant advantage to updating the EXT ROM to 4.1?

grumpydoc · « **Reply #45 on:** August 21, 2022, 09:15:56 pm »

Must admit I once thought all PM3394B's had GPIB

Just transfer your CPU (A3) board to the new 'scope.


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Author Topic: Phillips/Fluke PM3394 Combiscope Help (Read 10572 times)

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