SHOULD BE A SIMPLE SOLUTION: 3-prong grounded to 2-prong AC

BonzaiDuck

Lifer
Jun 30, 2004
16,256
1,831
126
There HAS to be a simple and inexpensive solution for this.

I have a spare HDTV cable-box hooked up independently to my LG TV, which also gets my HTPC output through a second selectable HDMI channel.

My family has been slow in moving from bulky old TV sets and SD broadcast, and this factor delayed my own migration to HD.

Leaving my HTPC / cable-card-plus-SiliconDust / HDTV setup "as-is" -- I wanted to move the HD cable-box to the room where Mom is getting SD through an SD-only cable-box. I have determined that this will work great without buying an "HDTV" for her, since I have an HD-ready 1080p monitor which I've tested with the HD cable-box.

I would like the monitor-power to come from the HD cable-box, so that both devices would shut off by the same cable-box remote-control. But the cable-box has a two-prong AC output, while the monitor has three-prong.

Asking the fam-damn-ily to turn of the monitor directly is undesirable (the power button and all the other adjustment buttons are a bit obscure and like a cell-phone Qwerty button). The monitor's built-in sleep mode ("green" to "amber") won't work because it is meant to be PC-driven).

Is there some solution for this? Is there such a thing as a three-prong to two-prong AC cable?

Or should I even worry that a monitor which shows a blank screen -- doesn't appear to have any residual back-light or such indication -- would be left on?

UPDATE: Sorry I posted -- simplest solution: a power-strip with LED button.
 
Last edited:

Vaulter

Member
Nov 17, 2009
61
0
66
Haha, question is already answered I guess, but grounds are only there as a safety precaution. When I was thirteen I hacksawed the ground off a 3 prong plug and it worked just fine. If its something you're handling like power tools then the ground is important so it doesn't shock you, but the worst that's gunna happen with your tv is it randomly burns it out, but I'm pretty sure you're risking the same thing using an adapter like that one above anyway.
 

BonzaiDuck

Lifer
Jun 30, 2004
16,256
1,831
126
Haha, question is already answered I guess, but grounds are only there as a safety precaution. When I was thirteen I hacksawed the ground off a 3 prong plug and it worked just fine. If its something you're handling like power tools then the ground is important so it doesn't shock you, but the worst that's gunna happen with your tv is it randomly burns it out, but I'm pretty sure you're risking the same thing using an adapter like that one above anyway.

First -- thanks, frowertr. Also, to Vaulter.

Power strip is the best idea. Would be nice to have power controlled from the cable-box, but not essential. Asking Mom to operate the obscure and tiny switch for the 1080p Hanns-G monitor is like asking to win the lottery a few weeks ago. It's impossible.

And power strips can go on the fritz, but may last several years. Frankly, I think it's a pretty good monitor, too. So this way, I can get RF/EM filtering and surge-suppression.