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Don't dump your CRT RPTV! - Page 379

post #11341 of 12297
Thread Starter 
Quote:
Originally Posted by taichi4 View Post

I have my 65813 (and my computer) plugged into Surge Protector/UPS units with line conditioner and voltage regulation, all because an electronic wizard friend of mine convinced me how sensitive many electronics are to voltage fluctuation. cool.gif

Yes they can befuddle a power supply such that it takes being off overnight to come back. When can I meet your friend?

biggrin.gif

b
post #11342 of 12297
Quote:
Originally Posted by Mr Bob View Post

Yes they can befuddle a power supply such that it takes being off overnight to come back. When can I meet your friend?
biggrin.gif
b

The Wizard is from a Computer Forum, but he has ducked out of sight for many months.
As he has a solid technology background, I took his admonition and suggestion quite seriously.

Real voltage regulation fanatics would use UPS/Voltage Regulators with Pure Sine Wave.
I am still in the less precise world of Modified Sine Wave, but my girlfriend still likes me.
post #11343 of 12297
I just went to power the TV on to watch football and it's back to not working. I went downstairs to find the power LED off, as normal, and the TV unresponsive. I turned the power off and back on which resulted in the power LED lighting up solid green, again. The only thing different this time is that I left the TV plugged in whereas the previous few times it worked, the TV was unplugged immediately prior to powering it on. Mr. B, do you have any new ideas given this information? I think I might be giving you a call frown.gif

Thanks again for your help!

:edit: Looking at various service manuals & troubleshooting guides, it doesn't appear my set has a DM. If it helps, I have the Mitsubishi V24 chassis.
Edited by Cyrix_2k - 11/4/12 at 10:27am
post #11344 of 12297
Thread Starter 
It's being pretty schitzy. We'll try on the phone if you'd like, I'll give it the best shot I can -

b
post #11345 of 12297

Darbee Darblet

 

 

Readers of this thread and followers of the Gospel according to Mr. Bob will find this little box, which is added to the HDMI chain before your output device (CRT or otherwise), amazing. The best analogy I can think of is, if you turn your surrounds off and on, sometimes the difference is dramatic but most of the time it's subtle, but you still want them on. This does the same for video.

Read about it here:

http://darbeevision.com/

Discuss it here (link is to some nice screenshots):

http://www.avsforum.com/t/1399154/darbee-vision-darblet/4500#post_22545807

Buy it here:

http://shop.avscience.com/DarbeeVision--Darblet-DVP5000_p_351.html

Just in time for the holidays, and the price went DOWN recently!

Michael

post #11346 of 12297
Quote:
Originally Posted by LastButNotLeast View Post

Darbee Darblet


Readers of this thread and followers of the Gospel according to Mr. Bob will find this little box, which is added to the HDMI chain before your output device (CRT or otherwise), amazing. The best analogy I can think of is, if you turn your surrounds off and on, sometimes the difference is dramatic but most of the time it's subtle, but you still want them on. This does the same for video.]

Can you be a little more specific in what it has done for your TV? Does your HDMI chain include a Fury?

In my case it would go through my DVI port.

I've been intrigued with this thing for months.

Cheers.

post #11347 of 12297

The best analogy is the one I came up with for surrounds. It's not dramatic, like subwoofers. You can't call it "sharpness," since it's not that. Depth? Okay, but what does that mean? It's an improvement, better "definition."

I've used it for everything from old TV show DVDs to OTC SD and HD to SuperLeo's demo disc and it didn't make anything worse, and made most "better."

I don't have a Fury, but I'm sure someone on the Darbee thread does.

Most places give you at least 15 days to try it. It took me about 10 minutes to determine it's a keeper. Which is good, since I got an open box and wouldn't have been able to return it, anyway.

 

I don't want to turn this into another Darbee thread; I just thought people here would be interested enough in this device to pursue it elsewhere.

post #11348 of 12297
So, do you have a set with HDMI native to utilize the Darbee? What set do you have?

Does it give the picture extra depth?
post #11349 of 12297
@LastButNotLeast :

Are the improvements you see with CRT more in the areas of image clarity...improved focus...better image depth...appearance of tighter convergence...better edge enhancement...or something else altogether? Werethe effects you noticed as dramatic with CRT as the ones from the Darbee website on your PC monitor? Were the effects more noticeable on DVD, Blu-Ray or Broadcast? These questions may be more appropriate for the other thread (video components). So if you want to answer over there. I'll see it. I check it daily. Like you suggested: no need to pollute Mr Bob's Masterpiece with too much talk about Darbee.
post #11350 of 12297

Right, please continue these discussions "there."

At least until Bob gets one.

wink.gif

post #11351 of 12297
Just thought I'd jump in here and say hello... long time "sometimes poster" / lurker type who loves tons of the forums here smile.gif

So, a friend of mine has had an '04 Sony KP-46WT520 forever. It never seemed to give him trouble until it recently "lost audio" (while playing Netflix, via Wii) and also developed a solid blue line across the screen when power cycled...
Being a "regular user" of such tech (though he is an HVAC tech..), he gave up after a couple of power cycles (not leaving it on the solid blue line for more than a few seconds, as he knew this couldn't be good), and went out to buy a new LCD.

Being the kind of guy who likes to tinker, and being longtime friends, he asked if I still fixed TVs on occasion (more a hobby for me, I am by NO means a "Mr. Bob" - quite enjoyable posts here... those that I've skimmed seem like good times), and if I'd like to take the set. Um, yeah. I knew it was a CRT based set, which I'd always been interested in. ...his wife also wanted it out of their garage, so as a friend, I felt good in actually helping them take it away wink.gif

Other than very occasional short viewings at his house, I'd never paid it much attention - once when it was new, we were all totally awed by a DVD on the thing.. since then, I'd seen it maybe a handful of times, and always thought "that's a solid TV..." Indeed, I think it is, having lasted since '04 with him never having had to have "major service."

Long story short, it's in my garage now, and I hope to fix the thing. We got it to power on once more almost normally (more on that in a sec), and then after another power cycle, I saw the "blue line."

Seems that TONS of these sets had power issues. I figured, what the hell... and ordered the two ICs that are commonly replaced (just in case, and to brush up on soldering). Some also report that the audio issue is related to weird power issues.

Any other advice on getting this ol' thing going again, other than testing the power board / replacing parts there? ...One random thread (can't find it now, of course), mentioned that it was possibly a defect in the "D-board" on this model, but if it's having power / audio issues, I'd think to start there first.

Other than any general tips on getting the beast back to life, I'm curious how dusty the thing is - I'm sure it's NEVER been taken apart before. Should it appear due to have lenses / mirror cleaned, I'm curious what material would be best used, as I've seen one comment *never* to use microfiber (lenses are plastic?). ...If that's a "private call" kind of thing, that's cool too.

Anyway, just wanted to share - saving the old thing from certain doom! No idea what I'll do with it next, as I don't know how long I'll be at my current place, but for now, it would seem to be quite a nice thing to keep around since I'm also an old school fan of CRT tech (and will always regret having to lose my old 21" FD Trinitron monitor... RIP...).

...EDIT...
Seems it has 5 blinks after powering on. Solid blue line still present. Quick searches on this indicate "D board" issues frown.gif ...thinking power supply probably won't fix, but it won't hurt to try I guess. Any tips on D board fix for this?
Edit 2
Did a little dusting inside the cabinet, and it powered on and worked fine for a couple hours.. Definitely see a need to clean the lenses, and the inside / outside of the screen.
Found the chips that would be replaced, but I couldn't get the "hv" wires disconnected, so I'm not sure how to get that board out frown.gif ...convergence was otherwise good. Picture was good overall.
Edited by kansanian - 11/6/12 at 7:19pm
post #11352 of 12297
My wife and I are moving my beloved mits 65813 to the basement, and we need a 65" replacement for our family room - not a crt. Any recommendations for this would be appreciated - while I realize there is no replacement for a 65813, which of the newer tecs would come closest? the newer panny plasmas? Thanks.
post #11353 of 12297
Is a 73" out the question? The Mitsubishi DLP's are the closest I've seen to CRT like image quality IMO of the display techs that are still around but the smallest they make now are 73". Though you might be able to find a 65738 DLP at some Best Buy's but those are 2010 models.
post #11354 of 12297
post #11355 of 12297
Hello!

I'm disassembling a rear projection tv from the 90's and am wondering how to go about discharging the 3 crts. Do I just ground one, then another, and the last one? And remove the anode plug?

I'm also curious how the voltage would compare to a single crt screen. Would it be more since there are 3? or less because each one is much smaller.

thanks!
post #11356 of 12297
Thread Starter 
Quote:
Originally Posted by kansanian View Post

Just thought I'd jump in here and say hello... long time "sometimes poster" / lurker type who loves tons of the forums here smile.gif
So, a friend of mine has had an '04 Sony KP-46WT520 forever. It never seemed to give him trouble until it recently "lost audio" (while playing Netflix, via Wii) and also developed a solid blue line across the screen when power cycled...
Being a "regular user" of such tech (though he is an HVAC tech..), he gave up after a couple of power cycles (not leaving it on the solid blue line for more than a few seconds, as he knew this couldn't be good), and went out to buy a new LCD.
Being the kind of guy who likes to tinker, and being longtime friends, he asked if I still fixed TVs on occasion (more a hobby for me, I am by NO means a "Mr. Bob" - quite enjoyable posts here... those that I've skimmed seem like good times), and if I'd like to take the set. Um, yeah. I knew it was a CRT based set, which I'd always been interested in. ...his wife also wanted it out of their garage, so as a friend, I felt good in actually helping them take it away wink.gif
Other than very occasional short viewings at his house, I'd never paid it much attention - once when it was new, we were all totally awed by a DVD on the thing.. since then, I'd seen it maybe a handful of times, and always thought "that's a solid TV..." Indeed, I think it is, having lasted since '04 with him never having had to have "major service."
Long story short, it's in my garage now, and I hope to fix the thing. We got it to power on once more almost normally (more on that in a sec), and then after another power cycle, I saw the "blue line."
Seems that TONS of these sets had power issues. I figured, what the hell... and ordered the two ICs that are commonly replaced (just in case, and to brush up on soldering). Some also report that the audio issue is related to weird power issues.
Any other advice on getting this ol' thing going again, other than testing the power board / replacing parts there? ...One random thread (can't find it now, of course), mentioned that it was possibly a defect in the "D-board" on this model, but if it's having power / audio issues, I'd think to start there first.
Other than any general tips on getting the beast back to life, I'm curious how dusty the thing is - I'm sure it's NEVER been taken apart before. Should it appear due to have lenses / mirror cleaned, I'm curious what material would be best used, as I've seen one comment *never* to use microfiber (lenses are plastic?). ...If that's a "private call" kind of thing, that's cool too.
Anyway, just wanted to share - saving the old thing from certain doom! No idea what I'll do with it next, as I don't know how long I'll be at my current place, but for now, it would seem to be quite a nice thing to keep around since I'm also an old school fan of CRT tech (and will always regret having to lose my old 21" FD Trinitron monitor... RIP...).
...EDIT...
Seems it has 5 blinks after powering on. Solid blue line still present. Quick searches on this indicate "D board" issues frown.gif ...thinking power supply probably won't fix, but it won't hurt to try I guess. Any tips on D board fix for this?
Edit 2
Did a little dusting inside the cabinet, and it powered on and worked fine for a couple hours.. Definitely see a need to clean the lenses, and the inside / outside of the screen.
Found the chips that would be replaced, but I couldn't get the "hv" wires disconnected, so I'm not sure how to get that board out frown.gif ...convergence was otherwise good. Picture was good overall.


D board replacement on a Sony should be fairly straightforward, if anything about the Sony CRTs is straightforward... I have seen parts of them be very hard to get to and get out of again intact. But if you're careful and fastidious about it, you should have no problem swapping in a new D board. Make sure you can return it if that does not solve the problem.

As for optics cleaning and how to get the HV disco'd safely, best thing to do is to get on the phone with me off board about it. I do this all the time - take calls from all over the continent about optics cleaning and other critical display issues - and the results are always spectacular, no exceptions. You get the finest cleaning advice out there, with no worries about damage to your irreplaceable optics as long as you don't get ahead of me, and you pay very strict attention. Michael/Last But Not Least is a good friend of mine and had me on the phone with him around his blue gun replacement, and was very glad he did.

Call me -

b
post #11357 of 12297
Wow, I looked at this thread years ago before moving my Pioneer Elite Pro 710HD out of my theater and replacing with an overhead projector. The pioneer was relegated to a family room where it is no longer used. How does one get rid of one of these things? I hired movers to get the 380 pound monster into my basement, now I can't get it out. Since it was used sparingly in a darkened room for 10 years, it does still work but the optics are dirty and power issues have begun.

Is there a market for these? I'm located near Madison Wisconsin if anyone wants to haul it away. If not, can someone direct me to a document that shows how to safely disassemble this beast so that I can get it up the stairs?

thanks

bill
post #11358 of 12297
Thread Starter 
The value in CRT sets has now become in ownership and gifting, not resale. There's very little resale value in the sets now because of the competition of low cost fixed pixel units being bought in droves by Joe Sixpack, but there is still incredible HD image viewing value in our CRT sets. Our HD is head and shoulders finer than that of those easily affordable fixed pixel sets out there when your CRT set is fully optimized to where it was always intended to be, by its designers. They designed and built these sets with the full and conscious intention of having them last 20 years or more, and having them look fabulous at all times.

Your set can be cured of its intermittent power supply problems in an afternoon and then lifetime warranteed by me personally so you'd never have to worry about it again, and the amazing picture that can still be gleaned from your set with the proper care and feeding - also known as cleaning and alignments - is absolutely breathtaking. I tour the country doing this and have happy owners of these and other CRT sets all over the country. The screenshots I have taken of these completed sets have shown on this and other threads for years, making my point far better than writing about it ever could. Start with page 259 of this very thread.

And they last and last and last, unlike the relatively fragile offerings of today, many of which are lucky to last you 4 years before your having to plunk down another few thousand - or another few hundred every time you need the bulb replaced - some of them having problems that total them at only 2 years. They are just not building them like they used to - that phrase has never been more true than it is right now.

That said, evidently you've already made your choice, so I won't belabor all that any further.

The CRT array can be separated from the saucer section, so to speak, then reattached later such that your set will be incredibly lighter weight with that array out of there, for going up stairs with it. The frame and view screens sandwich also come out fairly directly, but take great care to not allow any skin oils onto them. Ideally you'll wear super clean linen gloves. The speakers come out easily as well but are not heavy enough to matter. The mirror can be removed also, but doing so can be treacherous, so don't attempt this unless you know exactly what to do ahead of time. Experimentation here by DIYers has cost them dearly on this mirror issue.

I am available for advice on all these things, and I try to get that advice out to you every day on this and other threads. Not everything you may need to know will be found here, tho, or with a net search, and much of the advice out there is just plain bad advice. But energizing and gratifying for the one writing it to at least have his words in print!

If you want it from the horse's mouth, you know where to find me.

b
Edited by Mr Bob - 11/11/12 at 5:55pm
post #11359 of 12297
Quote:
Originally Posted by agmitch View Post

Wow, I looked at this thread years ago before moving my Pioneer Elite Pro 710HD out of my theater and replacing with an overhead projector. The pioneer was relegated to a family room where it is no longer used. How does one get rid of one of these things? I hired movers to get the 380 pound monster into my basement, now I can't get it out. Since it was used sparingly in a darkened room for 10 years, it does still work but the optics are dirty and power issues have begun.

Is there a market for these? I'm located near Madison Wisconsin if anyone wants to haul it away. If not, can someone direct me to a document that shows how to safely disassemble this beast so that I can get it up the stairs?

thanks

bill


Take apart and break the cabinet into smaller pieces.


Sent from my iPad using Tapatalk HD
post #11360 of 12297
Thread Starter 
Anyone who would do that to a perfectly operational Pioneer Elite PRO 710HD is seriously lacking in respect, and sorry but I have my doubts as to whether this person is really on this thread to actually contribute. These sets should never even be parted out unless they are malunctioning.

This was the very finest set out there at the time, the most expensive 7" gun CRT RPTV available, the very creme de le creme, with electronics and excellence of design that have both stood the test of time. There are plenty of people around who would be glad to take a formerly $7000 set off one's hands when it's still fully operational and still capable of greatness.

B
Edited by Mr Bob - 11/11/12 at 6:29pm
post #11361 of 12297
I second what Bob said. The poster with the set obviously wants to give it a new home. Craigslist obviously comes to mind.

Destroying it would deprive a new owner from a good deal of enjoyment.

I was just watching Homeland and kept thinking what a fine picture, and how natural the colors are on my Mits 65.

Sunlight looks like sunlight...
post #11362 of 12297
I have a question simiar to an earlier post.

I have a Toshiba 65HX93 It's about 8-9 years old. It went out after a power event, and talking to local service tech, I've decided to replace it. I suspect it's possible that someone with some DIY electronic experience could fix it. But that isn't me.

If anyone knows of someone who would want this in the Portland Oregon area, they'd just need to pick it up. Otherwise, I'm afraid I'll just be sending it to a recycle center here.

Thanks
Rick
post #11363 of 12297
Bob,

Thanks for the reply. Pretty impressive to talk someone through a crt/gun replacement smile.gif
I am thinking I might have time this weekend to delve into a phone call / session with the ol' Sony. Definitely don't want to risk ruining the ol' thing, as it seems to have a good bit of life left.

Since dusting the boards inside, it seems to have no problem turning on lately. I've turned it on at least every other day for at least 30 minutes to be sure it's still working.
Still waiting on the chips to replace, but I think I'll keep them on hand until after I first get the ol' thing cleaned up and ready for more work. For now, since it works, I'm not going to mess with anything wink.gif
Hope to be able to talk soon, and get this thing in good shape again. Even with dusty optics, I can tell it has potential to look pretty darn good.
As for what on earth I'll do with it after getting it all fixed up, I don't know yet. It's certainly NOT going to a junk yard. Probably going to have to live in my garage until I move and find a good spare room for it. Would make a great TV for a den type setting.
Look forward to talking soon and arranging a good time for us to give this set some attention. Until then, I'll continue poking around this vast thread of greatness.
post #11364 of 12297
Thread Starter 
I'll be looking forward to that!

wink.gif

b
post #11365 of 12297
Quote:
Originally Posted by kansanian View Post
Thanks for the reply. Pretty impressive to talk someone through a crt/gun replacement smile.gif

That was me, and he did. And the set and I both lived to tell the tale. 

I continue to recommend phone consults with Bob to anyone hesitant about any of these projects.

And you SHOULD be hesitant.

Have fun, and enjoy your set.

Michael

post #11366 of 12297
Quote:
Originally Posted by Mr Bob View Post

Anyone who would do that to a perfectly operational Pioneer Elite PRO 710HD is seriously lacking in respect, and sorry but I have my doubts as to whether this person is really on this thread to actually contribute. These sets should never even be parted out unless they are malunctioning.

This was the very finest set out there at the time, the most expensive 7" gun CRT RPTV available, the very creme de le creme, with electronics and excellence of design that have both stood the test of time. There are plenty of people around who would be glad to take a formerly $7000 set off one's hands when it's still fully operational and still capable of greatness.

B


I don't see you helping him haul it out lol. Good luck trying to sell it on Craigslist or even giving it away when people realize its downstairs.

Sorry you didn't like the answer but this happens daily as people upgrade to newer stuff.


Sent from my iPad using Tapatalk H
post #11367 of 12297
Quote:
Originally Posted by Verge2 View Post

I don't see you helping him haul it out lol. Good luck trying to sell it on Craigslist or even giving it away when people realize its downstairs.
Sorry you didn't like the answer but this happens daily as people upgrade to newer stuff.
Sent from my iPad using Tapatalk H
Gotta admit...he's right. wink.gif I am SOOOOOOOOOO thankful I didn't get anything bigger than a 51". When the day comes, it won't be difficult much more than spliting the cabinet, another great feature. cool.gif
post #11368 of 12297
Thread Starter 
Can't fight what you're saying, and don't take it personal, I know you're just the messenger. Still what you're saying does not feel great to know, when the set can be lifted quite easily once the CRT array is out of there, and one person can carry the array with no problem. The array is heavy, yes, but not all that big.

If it didn't work I'd feel differently, but there's a complete package there that is still working. I hate to see that kind of thing torn apart at the seams.

b
post #11369 of 12297
I have my HTPC connected to my mits 65813, whcih I use as my primary video source in addition to OTA. I also use it for my music, which requires me to turn the tv on to choose a ripped cd and turn it off while listening (keeping the tv on is not an option, as I don't want to look at an illuminated screen). I am concerned with the effects on the tv by turning it on and off numerous times during a listening session. Any thoughts or suggestions?
post #11370 of 12297
Thread Starter 
As long as no video is hitting your guns, you can keep it on 24 / 7 if you like. That way the phosphors will never get bombarded at all and as such will not age at all.

Whenever you wish your screen to be blank, change the input to a non used input and make sure the graphics disappear after a few seconds. If they don't on your particular brand or model, turn the contrast and brightness all the way down on that input and see if that helps Get your screen to virtually total blankness.

I often run mine that way with a blank screen for hours at a time with no aging at all to the guns.

B
Edited by Mr Bob - 11/14/12 at 2:41pm
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