CurtPalme.com Home Theater Forum

StuntDummy · Joined: 08 Aug 2007 Posts: 59 Location: San Francisco, CA

Is there a "proper" way to turn on/off a projector? For instance on my D50, is it better to put the machine in standby and then turn main power switch off when I power down, or is it ok to just hit the main switch, skipping the standby step? Or how about this. Is it ok to leave the main power switch in the on position and use a power strip to turn the projector on and off? I worry that if I power up/down improperly I might mess something up, so I just want to make sure. Thumbs Up

**AnalogRocks** · Posted: Wed Apr 16, 2008 5:38 am Post subject:

YIKES! NEVER turn the projector off via the front pannel switch or the power bar. I understand it can lead to tube spot burn. ALLWAYS use the button on the back of the PJ or on the remote to power it down. THEN you can turn off the main switch from the front.

ecrabb · Posted: Wed Apr 16, 2008 5:42 am Post subject:

D50? Why wouldn't you just use the IR remote to turn it on and off and leave the main switch alone?

SC

**AnalogRocks** · Posted: Wed Apr 16, 2008 5:43 am Post subject:

ecrabb · Posted: Wed Apr 16, 2008 6:05 am Post subject:

Yes - like any TV or similar device, it draws a some power. I just looked it up and the D50 and G70 both draw 7W in standby. That works out to about 61kwh/year. At my local rate of about $0.08/kwh, that works out to not quite $5/year.

Personally, I'd rather spend the $5/year. I'm not sure if the D50 and G70 have the same or a similar Dallas chip in them, but somebody just posted in a G90 or G70 thread that when the machine is either unplugged or the main power switch is off, then the battery in the chip will be holding the memory up. If plugged in and main power switch on, then the LVPS will be holding the memory up.

Food for thought.

SC

**AnalogRocks** · Posted: Wed Apr 16, 2008 6:11 am Post subject:

Tom.W · Joined: 09 Mar 2006 Posts: 6635

I power everything down after use. No worry of power spikes and lightning when I'm not around except for close strikes. So far so good. Wink

jkruger · Joined: 24 Oct 2007 Posts: 2435 Location: Carlsbad, CA

I have a ups with good isolation and spike protection that all my stuff is running on. I power down to standby and let it be at that.

timf · Posted: Wed Apr 16, 2008 12:03 pm Post subject:

Doesn't leaving it on standby add chassis hours to the set or am i thinking of something else?

ecrabb · Posted: Wed Apr 16, 2008 2:53 pm Post subject:

That's a Marquee thing - they do accumulate hours on standby. No other machines work like that, though - as far as I'm aware.

SC

Person99 · Joined: 09 Mar 2006 Posts: 4899 Location: Flower Mound, TX

The only CRT that really needs to be power down by the mains is a Quee. You can leave all other projectors in standby just like your main TV in the family room, your AVR, your DVD player, your...you get the idea. Basically, what SC said.

JustGreg · Joined: 07 Mar 2006 Posts: 3098 Location: Kenosha, WI

I have my basement HT 8500 plugged into an X10 appliance module, plugged into an APC UPS. When I leave the HT I wait for about an hour and then turn off the module from upstairs via RF remote. I wish it would work in reverse to power it all the way up but I suppose if not for this restriction I wouldn't get any exercise at all. Laughing

I counted the number of vampire things running and it's amazing how much energy I'm using just in wall warts, standby mode equipment, etc. so every little bit helps.

http://www.apc.com/resource/include/techspec_index.cfm?base_sku=BR1500LCD&total_watts=200

ralpharch · Joined: 02 Nov 2007 Posts: 211 Location: Derwood

I routinely power off with the remote - but that still leaves the fan running and it seems (1) wasteful and (2) noisy in my theater which doubles as a spare bedroom.

Q is how long is an appropriate wait after watching for a while to power this down all the way (I have an appliance plug that is remote controlled so easy to remove all power).

Typically I have been waiting 15 seconds or so after powering down. Is this too short a period for all off?

StuntDummy · Joined: 08 Aug 2007 Posts: 59 Location: San Francisco, CA

Thanks for the warning Analog, and the advice guys, I used to leave my pj in standby mode but one day the power in the house went out and when it came back, the projector turned on, along with my scaler which outputs a bright assed blue screen when there is no source. So I was a little bummed after a long day away, to come home and find the thing blasting away. Shocked

I think you're right jkruger a UPS would do the trick.

Joust · Posted: Thu Apr 17, 2008 12:59 am Post subject:

you'd think that they would make a Home Theater version of the software for the marquee to power the system down more fully.

As long as the tubes stop outputting light, killing the power will not burn the tubes.

The only risk would be IF the guns are emitting and the control grids stop controlling the beam. them beam will burn the point where it continuously hit the same spot.