Riddled TV.com - How to Discharge a CRT - Without Killing Yourself

Troubleshooting & Repairing Consumer Electronics Without a Schematic

How to Test Almost Everything Electronic

How to Discharge a CRT
(without killing yourself)

	Click Here	First I made a cable from an old vacuum cord I stripped the wire on both ends attached it to an alligator clip on one end wrapped the bare wire around the screwdriver on the other end Voila, a home-made CRT discharging tool! (note the handle of the screwdriver is plastic, insulating you from the high voltage)
	Click Here	I clip the alligator clip to a part of the circuit board that is grounded Places that are often (but not always) grounded include: TV tuners Large heatsinks (big pieces of metal) If you aren't sure which locations are grounded, you might repeat this procedure with the tuner and then several of the heatsinks, just to be sure.
	Click Here	Discharge the CRT Notice: my hand is not touching any metal Push the tip of the screwdrive up under the rubber Push toward the center of the rubber thingy If your CRT is "charged" you will hear a SNAP Not all CRTs are "charged". If your's does not "snap", and you are certain you shorted it to ground, it probably was already discharged and should be safe to work on.
	Click Here	You don't need to remove this (I just did it for detail) This part looks like a rubber suction cup, with metal clips in the middle. The metal clips are what you want to touch with the tip of the screwdriver
	Click here	Repeat as needed If your CRT "snapped" when you connected it to ground, Wait 10-30 seconds and repeat until it no longer "snaps"
	Click Here	Another view showing the discharge tool clipped to the tuner

Need Help? or Have a Question about This Procedure?
Ask a Question in the RiddledTV Forums

DISCLAIMER

This website is for information purposes only. RiddledTV.com and its affiliates are not responsible for damage to your equipment, ego, blown parts, county wide power outages, planetary disruptions, or personal injury that may result from the information provided here.