CurtPalme.com Home Theater Forum

CasetheCorvetteman · Joined: 09 Nov 2008 Posts: 6326 Location: Australia

Is this cause they dont have a blue defocus switch and you need to run the blue harder to get a better grey scale and proper colours?

If i defocus the blue abit will i get more life from the blue before i get some wear??

I have 2x 1001QMs and the one i just got has no visible wear on the red or green, but very slight wear on the blue... The other one on the ceiling has no visible wear on any of the 3... Although it did when i got it... Not that you can see just how bad it was in these pics... but it was pretty bad....

Even the red did...

km987654 · Posted: Mon Jan 02, 2012 11:16 pm Post subject:

It seems that ES sets wear blue tubes and EM set wear the green tube first. There have been discussions on this before but I am not sure anyone actually explained the reason just the fact.

CasetheCorvetteman · Joined: 09 Nov 2008 Posts: 6326 Location: Australia

Hmm... The reason i came to think it is to do with the lack of defocusing the blue is cause when you flick the switch on the NECs, the difference in blue brightness is quite noticable...

**AnalogRocks** · Posted: Tue Jan 03, 2012 11:28 am Post subject:

Lack of blue defocus? You just tweak the focus knob a bit....

CasetheCorvetteman · Joined: 09 Nov 2008 Posts: 6326 Location: Australia

Yes i know that!! Laughing

But how often is it ever done??

**AnalogRocks** · Posted: Tue Jan 03, 2012 5:05 pm Post subject:

Hmmmm all the projectors I have seen have had it done.

Ile · Posted: Wed Jan 04, 2012 8:10 am Post subject:

I guess all crt projectors had blue defocused when those leaved factory.

Maybe they have chanced to different blue phosphorus grade with EM tubes.

CasetheCorvetteman · Joined: 09 Nov 2008 Posts: 6326 Location: Australia

Harder to pick than a broken nose i guess, we will see Wink