CurtPalme.com Home Theater Forum

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

Just curious (remote control question as I have and IR controlled outlet).

Currently I power off the Marquee and then power off the projector totally - but this takes a couple seconds. I have never had any problems with doing this and it stops that fan noise in power off.

Would it be bad for projector to routinely take power off instantly from full on (like a power loss would do)?

Nashou66 · Joined: 12 Jan 2007 Posts: 16171 Location: West Seneca NY

If you could have it shut down after 5 minutes then id say ok. You want the LVPS fans to continue to run after shut down to lower the possibility of pre mature failure from heat in the LVPS and HVPS. Many people do not realize that the LVPS fans also cool the HVPS by pulling the cooling air through the HVPS. This is also why you should always run you PJ with the front panel on to keep a tight seal for the air to able to flow through the correct path.

Athnasios

CRT_Ben · Joined: 28 Aug 2006 Posts: 1684 Location: Northern Virginia

I think he's asking "Is it OK to turn off the projector from video operation by pulling the plug" and the answer is no. Dragan has some recent posts about it I believe.

Nashou66 · Joined: 12 Jan 2007 Posts: 16171 Location: West Seneca NY

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

Yes -that is what I was asking. But I have been shutting it down in a two step manner for a year or so now without incident - so there is no way I am going to go back to leaving it on (powwered off but that damn fan running) again. Its in a spare bedroom and is just too loud.

Was just really curious if the several seconds of unit power on I am getting now is important or not.

Nashou66 · Joined: 12 Jan 2007 Posts: 16171 Location: West Seneca NY

Tim in Phoenix · Joined: 21 Oct 2006 Posts: 4409 Location: Phoenix

Say Ralph

The E-Tech Fan Noise Mod will handle your noise problem.

https://www.curtpalme.com/forum_archived/viewtopic.php@t=6618.html

.

schmoe · Joined: 30 Mar 2008 Posts: 374 Location: Seattle, WA

Just got the E-Tech fan mod a few weeks ago and the PJ is silent when off. If there's any noise coming from it, I can't make it over the low hum of the HTPC in the room.

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

stefuel · Posted: Tue Mar 10, 2009 10:54 am Post subject:

This is probably why the HVPS (same brand as the Marquee) in the AmPro X600 series is more prone to failure. They run hot as a pistol and when you shut down a AmPro, everything shuts off. My thought is residual heat with no air movement is the culprit.

Nashou66 · Joined: 12 Jan 2007 Posts: 16171 Location: West Seneca NY

WTS · Joined: 08 Mar 2006 Posts: 1276 Location: Calgary

Hi,

I don't know the marquee pjs, are you saying that when in the standby mode the fans are running? If so then I would say keep it in standby for a few minutes then pull the plug(turn off the mains). Or you could read the manual and see what Ehome suggests. As for my Zenith 1200x I just power off the mains when I'm finished watching it, but then again my pj doesn't run very hot to start with, maybe 35c next to the hottest heatsink.

Nashou66 · Joined: 12 Jan 2007 Posts: 16171 Location: West Seneca NY

**Curt Palme** · Posted: Tue Mar 10, 2009 1:56 pm Post subject:

I pull power cords from Marquees all the time on the bench, and see no issues turning the power switch off via the line cord. Most CRT sets (Barco, NEC, Ampro) have designed a menu setting so that the set can actually be powered on and off via the AC cord without having to push any other button, I don't see why the Marquee would suffer by doing this.

Any spot burn/fault 'caused' by pulling the power cord would have an issue elsewhere in the set (in my opinion).

Nashou66 · Joined: 12 Jan 2007 Posts: 16171 Location: West Seneca NY

1031 · Joined: 22 Mar 2006 Posts: 657 Location: Finland

I have marquee connected to rf-controlled outlet, power cable is splitted over projector, one line goes to lvps second to 1,5amp 12v power supply that runs belly fans (four 120mm 12v Papst´s) So when i turn power off by marquees remote all fans are still running. I usually keep those running few minutes and then power off all by that rf-remote.

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

Thanks for all the input.

I am swimming against the tide, but I will now have a small level of comfort programming my TSU 501 remote for my Theater (which can't learn the Marquee codes).

mp20748 · Posted: Tue Mar 10, 2009 7:07 pm Post subject:

It's perfectly fine to power a Marquee using the AC to the unit. And there's absolutely no need to worry about cool-down.

Simply go into the menu and select power on, and from there switch the unit off and on from the power to the unit. The LVPS was designed for that feature.

When you turn the unit off with the remote, the only fans still operating is the ones in the LVPS. The belly fans turn off with the remote. If, the belly fans were staying on after the remote turn-off, then maybe I would go along with NOT using the AC power turn the unit on. But since they don't and only the LVPS fans are still operating, then there's no real reason to not use the AC power.

The LVPS barely need the fans. There's really not much in there that over heats at the scan rates we're using. The LVPS really heats up when the Marquee is in the high band. And the higher the scan rate, the hotter it gets.

I've serviced Marquees that were installed in very hot operating environments, and have seen some that the fans were so clogged from dust that they stop running or ran very slow--yet the Marquee kept right on going.

Fact is, that was one of the things that made the Marquee so popular around here. It held up very well in high temperature environments.

So yes, go into the menu and set it up for external power and relax. You're not going to do any damage what-so-ever...

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

Nashou66 · Joined: 12 Jan 2007 Posts: 16171 Location: West Seneca NY