MSefi.com read only forum (Jan.15,2018)

Yeah, I twiged on the inverted processor socket. Looks like I'm going to have to start again anyway!

So the questions now are:
1, will this be the cause of my +5v problem?
2, will I have damaged the board or componants during testing?

LOL, you're shitting me?

Yes I'm still getting battery voltage (9.35) on pin 28. I'll post some pics later. Thanks.

I couldn't find S12c but S12 has 4 - 10 mV. Wierdly when I first tested it it showed 9.5 mv but droped to 4 mV over time.
So I disconnected and reconnected the stim an rechecked. It started at 30 mV and quickly dropped to 0 mV before climbing back to 7.2 before dropping back to 0.4 mV. It then ...

I'm using the standard megastim v2.2.

You're right though, I haven't got stim voltage at the FET or even the MOV (which I believe is before the FET)?

Latest info: I checked the 2 poly fuses and have got continuity (3.4 ohms) on both.

No the board is at step 23.

The battery has lasted about 2 hours of diagnostics so far and is at 9.38 volts. teh fet doesn't get hot even after 1/2 an hour.

Thanks, Andy.

Thanks for all the suggestions

I checked for cold (dry) joints under a 10x magnifying scope and found a few suspect looking ones (excess solder or maybe too little solder, particularly matt looking ones) but nothing that screamed out at me. I remade about 15 joints on various elements inc the DB-37 ...

I have built my (DIY Autotune) stim and V3 board up to the first testing stage (power circuit testing) and I can't get 5 volts on the 40 pin processor socket (pins 1, 20 &31). I have followed the trouble shooting guide up to the point of lifting the componants. I have checked componant pressence and ...