Screwdriver slipped during VR adjustment... D19 dead

[darkhorizon]

First post, unfortunately its not a success story just yet.

My first MS build has been going fairly well so far, I have built a MS2 3.0 for my honda and managed to slip while adjusting the "top" vr pot R52. The screwdriver head ended up arcing r17, d3, and or R30.

I have done a fair amount of troubleshooting and I have determined that D19 gets REALLY hot during boot, so I purchased a replacement that I will install soon. as of right now, i am looking for speculation on the rest of my potential problems that will start to show up after I replace d19.

[Matt Cramer]

The usual cause of a dead D19 is if the 5 volt plane has ever been shorted to 12 volts. Usually, it's likely to blow first and prevent anything else from being damaged.

[darkhorizon]

Thank you. Ill post results next week.

[darkhorizon]

Fixed without any fuss.

Had my honda running great, but starting was nearly impossible... Determined there was just too much noise to ever use the VR's sucessfully, so i will just be going hall/coil on plug sooner than I thought.

I believe the VR can be used to read my AEM hall effect cam sensor... I plan on purchasing a hall effect add on to add the 1x cam wheel from the aem sensor.

[kjones6039]

FWIW.....

There are non metallic screwdrivers available from many sources.

No intent to be critical here. Just thought it might be helpful.

Ken