Get Free, Friendly, Expert Advice
Call 1-866-244-8796 or email

Designed and Manufactured in Canada Since 1980


AxiomAudio Blog

Blind Listening Tests

Sneak Peek into Axiom’s Current Research and Development

Axiom’s Newest Speaker: The In-Ceiling M3

Wall'O'Fame
Experimental Atmos
Greetings fellow Axiom owners...
Who's Online
2 registered (BBIBH, Ken.C), 41 Guests and 5 Spiders online.
Key: Admin, Global Mod, Mod
Financing
Forum Stats
13330 Members
11 Forums
22920 Topics
405226 Posts

Max Online: 378 @ 02/24/13 04:33 PM
Top Posters
Ken.C 17790
pmbuko 16289
SirQuack 13341
CV 11237
MarkSJohnson 10942
Meanwhile On Facebook

Did you get your "Golden Email"? The great gift certificate email giveaway star...

Here's a helpful article for everyone looking at putting a new stereo or home th...

Interesting article about who's getting the money from streaming radio services...

Page 1 of 3 1 2 3 >
Topic Options
Rate This Topic
#146987 - 09/02/06 10:05 PM Will a power failure damage a running projector ?
bridgman Offline
axiomite

Registered: 08/25/04
Posts: 5433
Loc: Bowmanville, Ontario, Canada
So... it's the dark and stormy night of literary fame. Cold, dreary, a perfect night for vacuuming the house and carrying junk down to the basement (ick, did I say that, I meant watching movies).

The power has flickered out for a second a couple of times, not enough to take down the PC but enough to make me think about all the rumours regarding power failures damaging a projector -- specifically, losing the fan cooling during the powerdown period and thereby damaging the bulb.

What do you think -- is this real, or urban legend ? There does seem to be some possible credibility to the "don't switch a hot filament back on again before it cools" warning, but I'm not sure about that one either.

Advice appreciated. Sony PLV-Z4, of course, running in "Creative Cinema" with the lamp over-ridden to "eco" ie lowest power.


Edited by bridgman (09/02/06 10:37 PM)

Top
#146988 - 09/02/06 11:20 PM Re: Will a power failure damage a running projector ? [Re: bridgman]
SirQuack Offline
shareholder in the making

Registered: 01/29/04
Posts: 13341
Loc: Iowa
Very good question John, I would be interested in the feedback as well. I think it has come up on AVS before, but the answers varied as wide as the "speaker break in" topic.

I know my basement HT stays relatively cool all the time anyway, and I'm not sure my fan runs much anyway after shutdown. So maybe in this situation it would not be a big deal. I know that I run my Z2 in low lamp mode, not that this matters.

Randy
_________________________
M80s-VP180-QS8s-EP600-2xEP350 Denon3808 Outlaw7700
M22-OWM22-VP100-Denon2805
Audio Nirvana

Top
#146989 - 09/02/06 11:47 PM Re: Will a power failure damage a running projector ? [Re: bridgman]
JohnK Offline
shareholder in the making

Registered: 05/11/02
Posts: 10406
John, this came up recently on Jason's(zarak)thread about his new TV. The facts appear to be that when the power goes off, both the TV bulb(if any)and the fan cooling it go off simultaneously. Since the bulb is off no additional heat is added and it doesn't get any hotter, it just takes longer to cool down than if the fan continued to run after a normal shut-off. No appreciable amount of extra wear-and-tear occurs. Restarting the bulb while still hot(e.g. if the power returned quickly)is said to be very harmful and most if not all display devices using bulbs are supposed to have temperature sensitive protective circuits to prevent this.
_________________________
-----------------------------------

Enjoy the music, not the equipment.



Top
#146990 - 09/03/06 01:24 AM Re: Will a power failure damage a running projecto [Re: JohnK]
pmbuko Offline
shareholder in the making

Registered: 04/02/03
Posts: 16289
Loc: Leesburg, Virginia
Indeed. I can vouch for that protective circuitry. I was involved in a training course on Friday at work and someone tripped over the projector's power cord, pulling it out of the floor jack. It took quite some time for the bulb to light up after restoring the power. Not sure of the model but it was a relatively new 3M projector.
_________________________
"I wish I had documented more…" said nobody on their death bed, ever.

Top
#146991 - 09/03/06 07:15 AM Re: Will a power failure damage a running projector ? [Re: bridgman]
real80sman Offline
connoisseur

Registered: 05/16/02
Posts: 1127
Loc: Ontario, Canada
John, these Uninterruptible Power Supplies (UPS) are not that expensive, and will buy you enough time to power down. At $99.00 it's pretty cheap insurance to protect a $400.00 bulb. Shoot, my neighbour is even using a larger one on his sump pump.

Don't forget to check out the detailed specs and reviews.
_________________________
Shawn

Epic 80/600 + M3's + Custom Finish Algonquin V3's

Top
#146992 - 09/03/06 08:54 AM Re: Will a power failure damage a running projecto [Re: pmbuko]
SirQuack Offline
shareholder in the making

Registered: 01/29/04
Posts: 13341
Loc: Iowa
Quote:

someone tripped over the projector's power cord




Someone?

Yeah, there is this guy that is a friend of a friend of a cousin of mine, he has a drinking problem, where can he get help.
_________________________
M80s-VP180-QS8s-EP600-2xEP350 Denon3808 Outlaw7700
M22-OWM22-VP100-Denon2805
Audio Nirvana

Top
#146993 - 09/03/06 06:09 PM Re: Will a power failure damage a running projecto [Re: SirQuack]
pmbuko Offline
shareholder in the making

Registered: 04/02/03
Posts: 16289
Loc: Leesburg, Virginia
Hey man, I was just sitting in the back of the room, observing. The lady who kicked the power out was british and you should have heard her apologize profusely.

"Oh my, I'm so dreadfully sorry."
_________________________
"I wish I had documented more…" said nobody on their death bed, ever.

Top
#146994 - 09/03/06 06:29 PM Re: Will a power failure damage a running projecto [Re: pmbuko]
Ken.C Online   content
shareholder in the making

Registered: 05/03/03
Posts: 17790
Loc: NoVA
A likely story from a Colonist. Absolutely shocking! I've never heard anything of the sort.
_________________________
I am the Doctor, and THIS... is my SPOON!

Top
#146995 - 09/04/06 12:55 PM Re: Will a power failure damage a running projecto [Re: bridgman]
medic8r Offline
axiomite

Registered: 02/05/06
Posts: 6402
Loc: Fredericksburg, Virginia
Bridgman, thanks for asking a question that I have been wondering about lately. Now I may not worry as much.
_________________________
"The Universe is the game of the self, which plays hide and seek forever and ever" - Alan Watts

Top
#146996 - 09/05/06 09:54 AM Re: Will a power failure damage a running projector ? [Re: bridgman]
jakeman Offline
aficionado

Registered: 10/03/05
Posts: 852
Loc: Toronto
I'd worry more about the flickering than the actual shutdown because of the power surges. I'm sure you are using a surge suppressor but they have their limits. I had a board fail in my Sim projector in June which the technician attributed to large surges. It may have been caused by the huge power demands during that very hot spell. A really good surge suppressor is cheap insurance and its worthwhile to know their specs. Call me cautious, nowadays I don't leave the projector on standby but shut the power off completely.
_________________________
John

Top
Page 1 of 3 1 2 3 >



Moderator:  alan, Amie, Andrew, axiomadmin, Brent, Debbie, Ian, Jc 

Home  |  Corporate Info  |  Products  |  Message Board  |  FAQs  |  Warranty  |  Site Map  |  Privacy Statement   |  Contact Us

©2014 Colquhoun Audio Laboratories Limited
All Rights Reserved.