200VDC - OUCH!

[strobey]

Last night I got unexpectedly bitten by a WPC95 AV board.

I was pushing on the heatsinks at the top of the board which are part of the DMD regulator circuitry.

Turns out there's decent volts on both - must be bare metal onto the tab of the transistors.

Measured nearly 220VDC between them (on paper -125 and +62 for the DMD volts).

I made a funny spaz noise for a few seconds. Glad no-one heard. Then again, I'm glad I didn't have my other hand on the siderail!

Lesson learnt. Careful guys.. its not all friendly 5V under the hood!

Tim

 

[Monkeyboypaul]

Ouch.

Touched an WPC95 AV Board Capacitor once - never again.

Stay safe kids.

 

[Cryptkeeper]

Did this the other day!!!!

 

[Paul]

25Kv of the back of a Colour TV tube. Wasn't pleasant...

think i had over 10 240v Shocks before i got to 15.... Damn me and my inquisitive nature....

 

[Deleted member 2463]

will you be wearing a funky perm for the broadcast tomorrow ?

 

[philpalmer]

hahaha @Paul me too!

 

[Paul]

hahaha @Paul me too!

I have learnt now after 30 years in engineering... If it's gonna hurt, let someone else do it