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stefuel
Joined: 07 Mar 2006
Posts: 3353
Location: Green Harbor MA USA
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| Posted: Sun Nov 04, 2007 1:17 pm Post subject: Look at all these G-90 problem threads. |
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Who the hell built these, AmPro? 
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Chip
A Barco is only a AmPro with training wheels
Card carrying member of the AVS chain gang.
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Curt Palme
CRT Tech
Joined: 08 Mar 2006
Posts: 24396
Location: Langley, BC
TV/Projector: All of them!
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| Posted: Sun Nov 04, 2007 3:09 pm Post subject: |
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You really have to wonder out there when ECPs can have their Dallas chips last for 15+ years and the SOnys are dying at about 5 or so. Wonder if the tiny drainage current is 3 X as high with the Sony sets over the ECPs, or whether Dallas started making cheaper chips? I'm guessing the former..
I'm also seeing repetitive failures in the G70s, the Pa and convergence boards seem to be weak spots. I'll say it again, they are NOT my favorite sets...
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stefuel
Joined: 07 Mar 2006
Posts: 3353
Location: Green Harbor MA USA
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| Posted: Sun Nov 04, 2007 3:35 pm Post subject: |
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Boy I'm glad I bought something I can get parts for. All kidding aside, If I were to change brands now and had a choice between a identical condition G-90 or Marquee 9500LC it would be the Marquee without a second thought. So many problematic G-90 threads scare me.
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Chip
A Barco is only a AmPro with training wheels
Card carrying member of the AVS chain gang.
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Tom.W
Joined: 09 Mar 2006
Posts: 6635
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| Posted: Sun Nov 04, 2007 4:43 pm Post subject: |
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Training wheels or not the 1209s is pretty cool ! Plenty of spare parts...
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overclkr
Joined: 08 Mar 2006
Posts: 4227
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| Posted: Mon Nov 05, 2007 1:04 am Post subject: |
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Just keep dreaming guys. Marquee? BLAH!!!!!
1209???? YEAH RIGHT! LOL!
MUWAHAHAHAHAHHAHAHAHA!!!!!!!
Cliffy
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Z-Photo
Joined: 07 Mar 2006
Posts: 2749
Location: Huntsville - Alabama
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| Posted: Mon Nov 05, 2007 6:30 pm Post subject: |
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Sony suxs
Buy an AMPRO
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Photographer by Night
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The Only GOOD AMPRO - is a Dead AMPRO.
wait - are they not all DEAD already?
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Phil Smith
Joined: 08 Mar 2006
Posts: 7717
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| Posted: Mon Nov 05, 2007 7:20 pm Post subject: |
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| stefuel wrote: | | Who the hell built these, AmPro? |
| Curt Palme wrote: | | You really have to wonder out there when ECPs can have their Dallas chips last for 15+ years and the SOnys are dying at about 5 or so. Wonder if the tiny drainage current is 3 X as high with the Sony sets over the ECPs, or whether Dallas started making cheaper chips? I'm guessing the former.. |
I agree with you guys. There seems to be a lot of G90 problems popping up lately. With no replacement parts available, I'm starting to reconsider my plan to get a G90 when my G70 gives up the ghost. I thought I'd never say this, but I'll probably go digital, just because CRT PJs are getting long in tooth. At some point the hassle of owning CRT becomes too much to be worth it. With the age and parts situation, we may be getting close to that point.
| Quote: | | I'm also seeing repetitive failures in the G70s, the Pa and convergence boards seem to be weak spots. I'll say it again, they are NOT my favorite sets... |
My convergence board did indead fail not too long ago. Luckily was able to find a replacement. But that's been the only problem in over 12K hours of usage. That ain't too shabby! 
PS: Actually, as more and more CRT owners switch to digital, I'm sure the parts supply will grow. Hopefully they'll be lot of parted out G90s by the time I'm ready for one.
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draganm
Joined: 08 Mar 2006
Posts: 8990
Location: Colorado
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| Posted: Mon Nov 05, 2007 7:31 pm Post subject: |
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| Phil Smith wrote: | | I agree with you guys. There seems to be a lot of G90 problems popping up lately. With no replacement parts available, I'm starting to reconsider my plan to get a G90 when my G70 gives up the ghost. I thought I'd never say this, but I'll probably go digital, just because CRT PJs are getting long in tooth. At some point the hassle of owning CRT becomes too much to be worth it. With the age and parts situation, we may be getting close to that point.. |
nice Troll Phil. G90's have always been hard to fix, nothing new there and that's hardly a reason to switch to a digital. Parts for every other make are extremely plentiful and with Marquee's still in production I will bet 10 years from now a 9500LC will be just as repairable.
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Phil Smith
Joined: 08 Mar 2006
Posts: 7717
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| Posted: Mon Nov 05, 2007 9:04 pm Post subject: |
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I didn't mean that as a troll. G90 problems were far and few between until recently. I always thought, sure, there's no parts, but G90s never break down, so big deal! Now I'm rethinking that.
I wouldn't want another CRT PJ unless it was a G90 or a fully modded 9500. I'm not willing to go to all the trouble and expense required to mod out a 9500, and I'm not sure a G90 is a wise choice, so I guess I'll end up with a digital at some point.
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cmjohnson
Joined: 03 Apr 2006
Posts: 5180
Location: Buried under G90s
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| Posted: Mon Nov 05, 2007 9:15 pm Post subject: |
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What it means is simply that the G90s are at the age where certain individual components have reached the end of their useful service life. At this point, failures are going to happen.
What's commendable is that there have been so few issues with G90s needing service up until this point.
CJ
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mp20748
Joined: 12 Sep 2006
Posts: 5689
Location: Maryland
TV/Projector: 9500LC Ultra / Super 02 and 03 VIM
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| Posted: Mon Nov 05, 2007 10:09 pm Post subject: |
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| cmjohnson wrote: |
What's commendable is that there have been so few issues with G90s needing service up until this point.
CJ |
Yep, and that would make the G90 the most reliable 9" CRT manufactured. Not sure how the VDC Marquees are doing, but so far, the G90 gets the longevity crown..
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Curt Palme
CRT Tech
Joined: 08 Mar 2006
Posts: 24396
Location: Langley, BC
TV/Projector: All of them!
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| Posted: Mon Nov 05, 2007 10:47 pm Post subject: |
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Fight, fight!
I will disagree about the reliability crown for the Sony, strongly so..
I'd rather take the Marquee bad module contacts or the odd Barco quadrupler failure over having to reflash Sony software and $1800 CPU repair bills and customs chips that are no longer available.
I think my concern is that the G90s are very recent vintage and have relatively low hours on them.
I can get a 55K hour MArquee or Barco in, and have a reasonable chance of doing some minor maintenance, maybe a retube, and being able to resell it with little chance of it blowing up every couple of months.
Funny thing, I can however sell a Sony 12XX series set that is from 1990 (The 1270) and I KNOW it will keep working. I can't say the same thing any more about the Barco 800s, that's shown itself in the last year or so.
I'd say a typical projector will last 17-20 years from the date of manufacture. That's about the point that caps and such start to die just due to age. Some last longer, but I'll bet the ratios of working G90s in 10 years from now will be a lot worse than say MArquees that are 14 years old right now.
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mp20748
Joined: 12 Sep 2006
Posts: 5689
Location: Maryland
TV/Projector: 9500LC Ultra / Super 02 and 03 VIM
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| Posted: Mon Nov 05, 2007 10:55 pm Post subject: |
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| Curt Palme wrote: |
I will disagree about the reliability crown for the Sony, strongly so..
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I understand what you mean. I'm only referring to the their failure rate so far. They seem to have the least failures so far, but that's not going to be much considering what failures that are beginning to surface, and will there be an economical solution for them. Or a solution at all..
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Curt Palme
CRT Tech
Joined: 08 Mar 2006
Posts: 24396
Location: Langley, BC
TV/Projector: All of them!
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| Posted: Mon Nov 05, 2007 11:02 pm Post subject: |
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Ah, gotcha, so we're not disagreeing then. Damn! 
No question it's a big learning curve with the newer sets. Seems like all manufacturers took it to heart to make things overly complex.:
'Hey, we have the technology, so let's cram it all into this next model projector'
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tse
Joined: 03 May 2006
Posts: 1014
Location: Sweatbucket, Fl.
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| Posted: Tue Nov 06, 2007 1:37 am Post subject: |
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All the manufacturers starting screwing up when they put processors , CPUs, and FPGAs in projectors. I've seen lots of people that could troubleshoot down to a blown transistor or a bad cap but those that can troubleshoot down to a bad 100 pin FPGA are rare birds. If you do find one you are still at the mercy of the manufacturer. No going to NTE for that programmed part.
Scott
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