| Author |
Message |
Curt Palme
CRT Tech
Joined: 08 Mar 2006
Posts: 24396
Location: Langley, BC
TV/Projector: All of them!
|
| Posted: Fri Feb 10, 2012 6:41 pm Post subject: |
|
|
RV- you're trying to reinvent the digital wheel.  (and yes, we CRTers know that the 'new' wheel is triangular, but it's been accepted that this new wheel is good.)
Do you know how many customers buy a new lamp in hopes the LCD haze will go away? I don't deal in digitals, and I get 2 calls a year like that. No question it gives manufacturers extra profit...I feel your pain though. WOrst case, throw it back on ebay and get most if not all of your money back...
|
|
| Back to top |
|
 |
Spanky Ham
Joined: 22 Mar 2006
Posts: 5643
Location: Comedy Central
|
| Posted: Fri Feb 10, 2012 6:56 pm Post subject: |
|
|
I am not poking fun at you Rvonse, but I have to laugh that three CRTers were looking at a digital on ebay and one bought it. 
|
|
| Back to top |
|
|
macgyver655
Joined: 22 Aug 2007
Posts: 8508
|
| Posted: Fri Feb 10, 2012 6:58 pm Post subject: |
|
|
| RVonse wrote: | | mp20748 wrote: | That all makes perfect sense now Mike. All I got to say is if they are worried about a lamp explosion then the manufacture needs to give us customers a "projector must run" pushbutton switch so that we can override all the permissives and finally determine whether or not the projector is going to run with a new lamp or not. Its like JVC wants you buy new tubes for a crt projector before you even know for sure whether the chassis has other problems and is going to run or not. Yes, I can drop another $350 in this thing but what happens when I do and find out I still have more issues to deal with? Like for instance, the fan driver board that has "no good" written all over it by some other tech before me. At the moment I'm getting a little tired of gambling and guessing. This projector physically looks brand new with no hours but before spending another $350 it sure would have been comforting to override the permissives. And at least get the thing up and running a few seconds to know for sure.
|
I think thats bullcrap on JVC's part. They need some way to check the functionality of the rest of the projector without having a known good lamp. |
And now we get to the heart of the issue. A good experienced repair tech knows how to disable the protection devices but does so knowing the hazards at hand and then also takes extra precautions for safety. Even then, giving the nature of your projector even a seasoned tech would try a new lamp first. Mostly because of the hazards.
And because of the known hazards is specifically why the manufacturers "DO NOT" give the customers a work around. Why would they give a customer a permissive work around knowing the lamp can explode and cause personal injury. That would be saying 'here, do this and if you survive you can sue us".
And CRT vs UHP is completely different devices but they both have shut down protection. So not a good analogy.
Now you've repeatedly said about the like new appearance of the lamp. So lets discuss that.
Is it a new lamp and maybe someone didn't know the timer had to be reset after the shut down timer engages? Maybe.
Is it a new but defective lamp and the projector senses a problem and wont turn on because it may explode? Maybe
Is it a used lamp and only a few hundred hours on it but failed prematurely? Maybe
Is it a worn out lamp with a still good appearance? Maybe.
Out of these 4 possibilities, how many can cause the lamp to explode? 3
Not good odds.
A good service tech would probably reset the timer to see if it would fully function but would "NOT" return it to the customer with that bulb. He would install a new one regardless.
|
|
| Back to top |
|
|
macgyver655
Joined: 22 Aug 2007
Posts: 8508
|
| Posted: Fri Feb 10, 2012 7:00 pm Post subject: |
|
|
| Spanky Ham wrote: | | I am not poking fun at you Rvonse, but I have to laugh that three CRTers were looking at a digital on ebay and one bought it. |
My interest was purely for profit..... 
|
|
| Back to top |
|
|
ecrabb
Forum Moderator
Joined: 13 Mar 2006
Posts: 15909
Location: Utah
TV/Projector: JVC RS40, Epson 5010
|
| Posted: Fri Feb 10, 2012 8:36 pm Post subject: |
|
|
| macgyver655 wrote: | | Spanky Ham wrote: | | I am not poking fun at you Rvonse, but I have to laugh that three CRTers were looking at a digital on ebay and one bought it. |
My interest was purely for profit..... |
My interest was being able to get rid of this old, obsolete dinosaur hanging from my ceiling.
OOoooohhhhhhhhh.... I'm just KIDDING!!!!!!!!!
I kid, I kid!
SC
|
|
| Back to top |
|
|
macgyver655
Joined: 22 Aug 2007
Posts: 8508
|
| Posted: Fri Feb 10, 2012 8:46 pm Post subject: |
|
|
| ecrabb wrote: | | macgyver655 wrote: | | Spanky Ham wrote: | | I am not poking fun at you Rvonse, but I have to laugh that three CRTers were looking at a digital on ebay and one bought it. |
My interest was purely for profit..... |
My interest was being able to get rid of this old, obsolete dinosaur hanging from my ceiling.
OOoooohhhhhhhhh.... I'm just KIDDING!!!!!!!!!
I kid, I kid!
SC |
What? You were on my potential buyers list..............
|
|
| Back to top |
|
|
RVonse
Joined: 09 Mar 2006
Posts: 3152
|
| Posted: Fri Feb 10, 2012 8:46 pm Post subject: |
|
|
| macgyver655 wrote: |
A good service tech would probably reset the timer to see if it would fully function but would "NOT" return it to the customer with that bulb. He would install a new one regardless. |
But how can you reset the timer without being able to see a service menu? Seems like a catch 22. Do they allow some sort of method to connect your computer direct to the projector cpu board? Or is there supposed to be some sort of reset button to reset the cpu eprom values?
Based on how new this looks and how it was originally advertised, I would doubt there would be over 10 hours of time on this bulb. But I can't figure out how to tell.
|
|
| Back to top |
|
|
ecrabb
Forum Moderator
Joined: 13 Mar 2006
Posts: 15909
Location: Utah
TV/Projector: JVC RS40, Epson 5010
|
| Posted: Fri Feb 10, 2012 9:30 pm Post subject: |
|
|
| macgyver655 wrote: | | What? You were on my potential buyers list.............. |
I wouldn't have been a good lead, though... That RS40 repaired would bring a lot more money than I'd be interested in spending on it. I have about $800 in my G70, and I likely won't be spending much more than that on whatever I replace it with, digital or not.
See, I wouldn't even be a good candidate for a G90 or any other 9" machine anymore; even those are way too rich for my blood at this point. In fact, I've only spent more than a grand on one single item in my theater, and I'm not too thrilled with that purchase. That and the PS3 are about the only new thing I have in my theater; everything else was used.
Around a grand or so - maybe $1200 - is about my pain point these days.
SC
|
|
| Back to top |
|
|
RVonse
Joined: 09 Mar 2006
Posts: 3152
|
| Posted: Fri Feb 10, 2012 9:30 pm Post subject: |
|
|
| macgyver655 wrote: | | Spanky Ham wrote: | | I am not poking fun at you Rvonse, but I have to laugh that three CRTers were looking at a digital on ebay and one bought it. |
My interest was purely for profit..... |
We're all going to get one of these whether we like it or not its just a matter of time. Might just as well bend over and lube up for the future.
|
|
| Back to top |
|
|
AnalogRocks
Forum Moderator
Joined: 08 Mar 2006
Posts: 26706
Location: Toronto, Ontario, Canada
TV/Projector: Sony 1252Q, AMPRO 4000G
|
| Posted: Fri Feb 10, 2012 10:24 pm Post subject: |
|
|
| RVonse wrote: | | macgyver655 wrote: | | Spanky Ham wrote: | | I am not poking fun at you Rvonse, but I have to laugh that three CRTers were looking at a digital on ebay and one bought it. |
My interest was purely for profit..... |
We're all going to get one of these whether we like it or not its just a matter of time. Might just as well bend over and lube up for the future. |
Speak for yourself! Analog until the day I die!
_________________
Tech support for nothing
CRT.
HD done right!
|
|
| Back to top |
|
|
ecrabb
Forum Moderator
Joined: 13 Mar 2006
Posts: 15909
Location: Utah
TV/Projector: JVC RS40, Epson 5010
|
| Posted: Fri Feb 10, 2012 10:43 pm Post subject: |
|
|
| AnalogRocks wrote: | | Speak for yourself! Analog until the day I die! |
Just curious, Jeremy... What are you going to do in five years when you can't get tubes anymore? I mean, you're already using machines you really can't find good tubes for. Yeah, you can switch to a 9500 in a few years, but even if tubes are available, they're going to be horrendously expensive. Are you going to sell the Crown Vic just to buy a blue tube for your projector?
SC
|
|
| Back to top |
|
|
AnalogRocks
Forum Moderator
Joined: 08 Mar 2006
Posts: 26706
Location: Toronto, Ontario, Canada
TV/Projector: Sony 1252Q, AMPRO 4000G
|
| Posted: Fri Feb 10, 2012 10:48 pm Post subject: |
|
|
| ecrabb wrote: | | AnalogRocks wrote: | | Speak for yourself! Analog until the day I die! |
Just curious, Jeremy... What are you going to do in five years when you can't get tubes anymore? I mean, you're already using machines you really can't find good tubes for. Yeah, you can switch to a 9500 in a few years, but even if tubes are available, they're going to be horrendously expensive. Are you going to sell the Crown Vic just to buy a blue tube for your projector?
SC |
You're looking at it all wrong. All you need to do is hoard as many machines as you can now, so when one breaks you just pull out another and off you go.
Why buy new when used will do?
EDIT: ...and I'm not opposed to d!gital projectors, just so long as they are free. Who in their right mind would pay for a POS d!gital
_________________
Tech support for nothing
CRT.
HD done right!
|
|
| Back to top |
|
|
ecrabb
Forum Moderator
Joined: 13 Mar 2006
Posts: 15909
Location: Utah
TV/Projector: JVC RS40, Epson 5010
|
| Posted: Fri Feb 10, 2012 11:05 pm Post subject: |
|
|
| AnalogRocks wrote: | | You're looking at it all wrong. All you need to do is hoard as many machines as you can now, so when one breaks you just pull out another and off you go. |
Ah, OK. Well, if you have room to hoard, then knock yourself out. I don't.
| AnalogRocks wrote: | | Why buy new when used will do? |
Indeed. I'm a big fan of used in many cases.
SC
|
|
| Back to top |
|
|
richardc
Joined: 13 Feb 2008
Posts: 32
Location: Australia
|
| Posted: Sun Feb 12, 2012 4:45 am Post subject: X3/RS40 Schematics |
|
|
RVonse
Send me your E-Mail address and I will send you a link to my X3/RS40 Circuit diagrams
Regards
Richard
|
|
| Back to top |
|
|
mc86
Joined: 20 Sep 2008
Posts: 767
Location: pittsburgh, pa
TV/Projector: ECP 4500 (Vidikron box), ECP4500+, wanting 07MS/07MTS, evaluating pc soft-blend
|
| Posted: Sun Feb 12, 2012 3:33 pm Post subject: |
|
|
I love this part of the philips bulb PDF that Mac posted:
"Average lamp life and light output is based upon a large sample population and defined that 50% of this
population will have >50% of the initial light output"
In essence, they tested a bazillion units and what they found is this: based on the data, at 2000 hours they will only claim that a minimum of 1/2 (median #) of their bulbs still throw more than 1/2 of the initial light output. To me, that is setting a disturbingly low bar. I suppose more than half working at half spec is some sort of messed-up betting man's odds way of thinking about product quality?
Now, I don't know how long the tails on the distribution curves are OR if the perhaps the bulb performance remains a constant new-like right up to 1950hours and then falls off a cliff...could be...BUT I will say stating their spec in this way reflects poor/incomplete technical communications at the best.
Matt
|
|
| Back to top |
|
|
ecrabb
Forum Moderator
Joined: 13 Mar 2006
Posts: 15909
Location: Utah
TV/Projector: JVC RS40, Epson 5010
|
| Posted: Sun Feb 12, 2012 4:27 pm Post subject: |
|
|
Do I really need to point out the reduced light output, shifting color balance, and burn-in on CRTs; none of which can be fixed by replacing a $200-300 bulb.
People love to tout the 10,000-hour CRT lifespan, but unless you have a tiny and/or high-gain screen, the CRT will look good for closer to half that.
A digital wouldnt have a f*cking hour-counter burnt into the corner after playing the same game a few hours every couple of days one winter, either. Yes, I'm a little sore.
SC
|
|
| Back to top |
|
|
macgyver655
Joined: 22 Aug 2007
Posts: 8508
|
| Posted: Sun Feb 12, 2012 5:02 pm Post subject: |
|
|
|
Geez Steve. he was only commenting on a manufacturers own document....not giving his opinion... Did you miss your morning coffee?
|
|
| Back to top |
|
|
ecrabb
Forum Moderator
Joined: 13 Mar 2006
Posts: 15909
Location: Utah
TV/Projector: JVC RS40, Epson 5010
|
| Posted: Sun Feb 12, 2012 5:21 pm Post subject: |
|
|
Sorry, I sort of used that post to respond to a bunch of posts... Seems to be a lot of "fanboyism" going around lately. Just pointing out that things aren't as bad as some make ot sound in digital land and and not as good as some claim in CRT-land.
I don't drink coffee.
SC
|
|
| Back to top |
|
|
macgyver655
Joined: 22 Aug 2007
Posts: 8508
|
| Posted: Sun Feb 12, 2012 5:29 pm Post subject: |
|
|
| ecrabb wrote: |
I don't drink coffee.
|
Well now, that explains a lot of things......
j/k
|
|
| Back to top |
|
|
ecrabb
Forum Moderator
Joined: 13 Mar 2006
Posts: 15909
Location: Utah
TV/Projector: JVC RS40, Epson 5010
|
| Posted: Sun Feb 12, 2012 6:22 pm Post subject: |
|
|
I get my caffeine in a Jack & Coke, Mac.
SC
|
|
| Back to top |
|
|
|
|
