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[email protected]> wrote: It's somewhere in the menus, see page 182 of the service manual: https://w140.com/tekwiki/images/e/e4/070-6285-00.pdf.

I'm pretty sure that Jared has it right that it is outgassing from the coatings applied to the board or from the cleaning process. That is what the "New Car Smell" is - outgassing from the plastics

Sounds good! (I’m glad it wasn’t major.) I’ll def let you know?? …I’ll say one thing… This project has def given me insight on how Tek mounts the face plates. Huge pain in the rear!!

Hi, With invalid nvram all kinds of 7000, 8000 etc. errors can be expected. Calibration may or may not clear these, because normally calibration builds on the old constants. The best is to force a

How did you force that cold start?

Hi! No changes to anything important regarding design or construction. I made the test report a fillable form so you can type in all your test results directly to print a nice report rather than

My 2430 needed a “cold start” before a self cal would clear those errors. ?ann mi?., 7. maí 2025 kl. 15:18 skrifa?i Gerdy via groups.io <gerdy_maelbrancke@...>:

Have you worked though the service manual diagnostics and theory of operation? I’m a bit surprised the Li-SOCl2 batteries aren’t available. They’re easily obtained here in the UK from various s

Update: my 2432A shows fault codes 7000 (CCD), 8000 (PA), 9000 (Triggs). The 8000 code today joined the 7000 & 9000 codes, not sure where this sudenly comes from. But NO 6000 code (CKSUM-NVRAM). Tried

Thanks everyone. Replaced with an ECG/NTE538 and my display works again. It shouldn't matter but I left the "CTL"/"D" line disconnected rather than connecting it to input. I had to do a significant

Heya Jared!! Funny enough I just started soldering my tester last night!!! Can you tell us the changes you made since the last version??? -dc

I agree. That was the point I was trying to make in the original post, the bare boards I get have never had a smell... that is what lead to my question about what is different between a bare board

I get a lot of bare boards from ALL PCB and JLCPCB and have never noticed them have a smell.

Perhaps there were multiple versions of the 703H. The one I have has the characteristics of the original 453, side mounted calibrator, and smaller CRT as compared to the 453A. Internally, boards are

I think it is the exact same part IIRC, it was a while ago and I bought my TM502 already smashed, but from memory the remaining parts of the original mains inlet looked pretty much cross compatible.

When I worked in welder repair yers back, the Chinese made welders had a particular smell, I traced it down to the conformal coatings on PCB's and varnishes in the transformers etc outgassing. Jared

Hello All, I have done many custom hobby level PCB and circuits (four layer and two layer boards), bought thousands of components from Mouser, Newark, etc, purchased hundreds of feet of hook up wire

Thanks Jared! I wound up ordering the same part (Schurter brand) you suggested from Mouser after looking at all the variations and what was in stock. I also ordered an extra fuse drawer but I'm

Schaffner is known for using the dreaded exploding Rifa capacitors, so be careful of any older Schaffner power entry modules. I found one in IIRC an HP 70000 series spectrum analyzer from the 1980s or

I have one with the same problem. I now use it for a test bed.