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scir16v
Joined: 02 Jan 2009 Posts: 112 Location: St. Louis
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Link Posted: Sun Mar 22, 2009 7:41 pm Post subject: So I cracked the glass...... |
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.....on the green tube for the electrohome. Can I get a plate from anywhere, or they optically ground? I didn't crack the tube, just the glass at the front of the glycol chamber.
And where can I get Glycol from?
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Nashou66
Joined: 12 Jan 2007 Posts: 16171 Location: West Seneca NY
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Zebu Fellenz
Joined: 21 Dec 2006 Posts: 2567
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Link Posted: Sun Mar 22, 2009 8:00 pm Post subject: |
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How was this mounted? You want to be sure no glycol dripped onto any of the boards.
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scir16v
Joined: 02 Jan 2009 Posts: 112 Location: St. Louis
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Link Posted: Sun Mar 22, 2009 8:38 pm Post subject: |
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It was mounted right side up, but I noticed it before any amount of glycol leaked on to the boards.
So I can't just go to a glass shop and get a piece of glass the same thickness cut for it?
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David_Web
Joined: 02 May 2007 Posts: 418 Location: Sweden
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Link Posted: Sun Mar 22, 2009 9:15 pm Post subject: |
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No. The glass is anti reflective and probably coated as well. A donor tube would be the best. (you could probably use normal glass but I guess that the halos would be horrible. And even double image.)
Curt has glycol.
_________________ SNR of people are ridiculously low.
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zGman
Joined: 22 May 2006 Posts: 599
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Link Posted: Sun Mar 22, 2009 9:31 pm Post subject: |
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I think you will discover it is a lot easier to swap housings
than to change out the glass.
G
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cmjohnson
Joined: 03 Apr 2006 Posts: 5180 Location: Buried under G90s
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Link Posted: Sun Mar 22, 2009 10:24 pm Post subject: |
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What kind of projector are you talking about? An ECP or a Marquee?
If it's a Marquee, 8" or 9"?
If it's an ECP, it'll be Sony tubes.
If it's an 8" Marquee, it'll be Panasonic tubes. Those glass/coolant chamber assemblies CAN be swapped out,
and I've done it, but it is by no means a trivial job.
If it's a 9" Marquee, you've got the CRT face and the C element, and the lens assembly. It's unlikely that any of these broke
so I doubt that it's a 9" Marquee.
CJ
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Zebu Fellenz
Joined: 21 Dec 2006 Posts: 2567
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Link Posted: Sun Mar 22, 2009 10:32 pm Post subject: |
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cmjohnson wrote: | What kind of projector are you talking about? An ECP or a Marquee.
CJ |
I believe it is an ECP. He has a wanted ad going for a toasted SD-187 tube.
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scir16v
Joined: 02 Jan 2009 Posts: 112 Location: St. Louis
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Link Posted: Mon Mar 23, 2009 12:28 am Post subject: |
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Yes, an ECP. sorry for the confusion.
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Elaine Benes
Joined: 25 Apr 2006 Posts: 1416
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Link Posted: Mon Mar 23, 2009 2:13 am Post subject: |
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scir16v wrote: | Yes, an ECP. sorry for the confusion. |
There's a full set of MS-07 Sony tubes appropriate for your ECP on ebay right now, and I doubt very much they'll get much action as they're only any good for fairly low quality projectors that only owners are really putting anything into any more. If you can't find the listing, let me know and I'll dig it up for you...
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Curt Palme CRT Tech
Joined: 08 Mar 2006 Posts: 24296 Location: Langley, BC
TV/Projector: All of them!
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Link Posted: Mon Mar 23, 2009 2:18 am Post subject: |
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I've done this a bunch of times. That includes putting tubes face down on arborite without any cloth between the glass and the counter. For some reason that cracks tube faces quickfast. IN your case, you probably overtightened the springs on the lens assembly. Done that too with an ECP... twice.
After you silicone the glass back on and fill with glycol, assemble the tube/lens assembly outside of hte projector, and have about 1/4" gap between the lens metal and hte tube face. THen when doing the Scheimflug adjustments with the wrench, only loosen the springs, don't tighten the bolts. THe exact gap amount doesn't matter, as long as its even all around the tube.
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Bruce 09
Joined: 08 Mar 2006 Posts: 747 Location: Kamloops BC, Canada
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Link Posted: Mon Mar 23, 2009 3:10 pm Post subject: |
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Quote: | IN your case, you probably overtightened the springs on the lens assembly. Done that too with an ECP... twice.
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I did the exact same thing about eight years ago, all within the first four minutes of CRT ownership, man I was pissed.
Bruce
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Curt Palme CRT Tech
Joined: 08 Mar 2006 Posts: 24296 Location: Langley, BC
TV/Projector: All of them!
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Link Posted: Mon Mar 23, 2009 3:40 pm Post subject: |
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You aren't a seasoned CRT tech until you spot burn at least one tube, blow up a perfectly good working projector due to 'let's see what this does', and smash a safety glass.
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AnalogRocks Forum Moderator
Joined: 08 Mar 2006 Posts: 26690 Location: Toronto, Ontario, Canada
TV/Projector: Sony 1252Q, AMPRO 4000G
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Link Posted: Mon Mar 23, 2009 3:51 pm Post subject: |
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Curt Palme wrote: | You aren't a seasoned CRT tech until you spot burn at least one tube, blow up a perfectly good working projector due to 'let's see what this does', and smash a safety glass. |
I blew up the Ampro so good it knocked the lights out in here. DO I qualify?
_________________ Tech support for nothing
CRT.
HD done right!
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aenglish
Joined: 21 Jan 2009 Posts: 78
TV/Projector: Barco BG808s (2002 build)
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Link Posted: Mon Mar 23, 2009 10:28 pm Post subject: |
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Curt Palme wrote: | You aren't a seasoned CRT tech until you spot burn at least one tube, blow up a perfectly good working projector due to 'let's see what this does', and smash a safety glass. |
I sport burned a 2 week old tube in a Cintel MkIII telecine once. I didn't enjoy walking onto my bosses office to inform him we needed to order another $12k tube. Funny thing is, we got the new one in and a collegue did the same thing about a month later! Turned out to be a lose connection on the deflection in the deflection controller, fixed it and never spotted a tube since (knock on wood). Our maintenace budget really took a beating that quarter!
_________________ There are 10 kinds of people in the world, those who get binary and those who don't.
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Mr. Green
Joined: 23 Feb 2007 Posts: 1394 Location: Calgary
TV/Projector: Marquee 9501LC / NEC 9PG+
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Link Posted: Thu Mar 26, 2009 5:27 am Post subject: |
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AnalogRocks wrote: | Curt Palme wrote: | You aren't a seasoned CRT tech until you spot burn at least one tube, blow up a perfectly good working projector due to 'let's see what this does', and smash a safety glass. |
I blew up the Ampro so good it knocked the lights out in here. DO I qualify? |
Did you ever get that beast working or not? Sounds like you blasted it like frankenstein, is it alive!!!?
_________________ You can be young only once but, you can be immature forever.
Current Projector Marquee9501LC with PS3 (BLu-Ray) at 1080P LOVE IT! Screen is an Elunevision 120" 4:3 (2.4 gain - no hotspots). (also own a NEC 9PG+)
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AnalogRocks Forum Moderator
Joined: 08 Mar 2006 Posts: 26690 Location: Toronto, Ontario, Canada
TV/Projector: Sony 1252Q, AMPRO 4000G
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Link Posted: Thu Mar 26, 2009 5:33 am Post subject: |
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Mr. Green wrote: | AnalogRocks wrote: | Curt Palme wrote: | You aren't a seasoned CRT tech until you spot burn at least one tube, blow up a perfectly good working projector due to 'let's see what this does', and smash a safety glass. |
I blew up the Ampro so good it knocked the lights out in here. DO I qualify? |
Did you ever get that beast working or not? Sounds like you blasted it like frankenstein, is it alive!!!? |
Yep, I can even push the power button on the remote without cringing!
Turned out to be R22 on the neck boards were blown, this took out the HVPS which in turn took out the LVPS, fuse and the lights
That was the first blown fuse in probably 15 years here.
_________________ Tech support for nothing
CRT.
HD done right!
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Mr. Green
Joined: 23 Feb 2007 Posts: 1394 Location: Calgary
TV/Projector: Marquee 9501LC / NEC 9PG+
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Link Posted: Thu Mar 26, 2009 5:36 am Post subject: |
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Nice!
Now you need to finish the theatre before it's warm enough for your car stuff.
_________________ You can be young only once but, you can be immature forever.
Current Projector Marquee9501LC with PS3 (BLu-Ray) at 1080P LOVE IT! Screen is an Elunevision 120" 4:3 (2.4 gain - no hotspots). (also own a NEC 9PG+)
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