Don't dump your CRT RPTV! - Page 430 - AVS | Home Theater Discussions And Reviews
Forum Jump: 
Reply
 
Thread Tools
post #12871 of 12888 Old 02-15-2015, 12:25 PM - Thread Starter
AVS Special Member
 
Mr Bob's Avatar
 
Join Date: Jan 2000
Location: San Francisco Bay Area/San Lorenzo, CA., USA
Posts: 9,554
Mentioned: 2 Post(s)
Tagged: 0 Thread(s)
Quoted: 84 Post(s)
Liked: 85
Glad you heard that. It's important.

I'll be glad to guide you thru the rest, upon request offline. Contact me and we'll talk about it -



b

Robert Jones
Image Perfection
510-278-4247
650-333-4808 cell
bob at imageperfection dot com
www.projectiontvtroubleshootingadvice.com
YouTube channel: mrbobbigscreen


Last edited by Mr Bob; 02-15-2015 at 12:38 PM.
Mr Bob is online now  
Sponsored Links
Advertisement
 
post #12872 of 12888 Old 02-16-2015, 05:12 AM
Newbie
 
Len44's Avatar
 
Join Date: Jan 2013
Posts: 11
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Liked: 10
Quote:
Originally Posted by patsload View Post
I will need to find someone around here in Southern NH to quote me a price.


Thanks!
Mr. Bob is WELL WORTH flying him in, and Highly Recommended. I did this last November (to Maryland) and am still amazed at the picture quality he brought to my Mits 73909.
Len44 is offline  
post #12873 of 12888 Old 02-16-2015, 10:49 AM - Thread Starter
AVS Special Member
 
Mr Bob's Avatar
 
Join Date: Jan 2000
Location: San Francisco Bay Area/San Lorenzo, CA., USA
Posts: 9,554
Mentioned: 2 Post(s)
Tagged: 0 Thread(s)
Quoted: 84 Post(s)
Liked: 85
Thanks, Len. And a more gregarious and pleasant host there never was!

Would love to come back again, just to have dinner with you again at The Tavern.



b

Robert Jones
Image Perfection
510-278-4247
650-333-4808 cell
bob at imageperfection dot com
www.projectiontvtroubleshootingadvice.com
YouTube channel: mrbobbigscreen

Mr Bob is online now  
post #12874 of 12888 Old 02-16-2015, 08:37 PM
Member
 
Turnbough's Avatar
 
Join Date: May 2014
Posts: 83
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 30 Post(s)
Liked: 12
Thanks Mr Bob.. One of these days i may need to do that. With my resent issues with my 65313 I forgot to mention why I retired her to my parents house. I was able to find and pick up another WS-65813 this one looks to be completely factory stock including the glare shield, which works for the kids TV. So I now have two of these beautiful black bohemoths for me and my family to enjoy.

I'll have to read up on the cutoffs and see if its something I feel comfortable doing myself. Thanks again for the advice.
Turnbough is online now  
post #12875 of 12888 Old 02-17-2015, 10:59 AM
Newbie
 
Join Date: Feb 2015
Posts: 1
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 1 Post(s)
Liked: 0
Hey guys,

About a year ago I picked up a Toshiba 57HX83 for free off a friend. I managed to resolve a lot of the convergence issues and have used it since.

Recently though, I've noticed that the picture has turned very dim. It's dim enough that a lot of things are just not viewable, and I'd like to repair this set instead of dropping money on a new one. I have brightness and contrast both turned up to 100% and I've cleaned the lenses and mirror but dark scenes are still very difficult to make out.

I've disabled the ALS feature too, so no automatic adjustments.

I haven't looked at the coolant as I'm not 100% sure what to look for.

There aren't too many resources that I've been able to find that help me accurately diagnose the issue so I was hoping you guys could point me down the right path.

Thanks!
Photomotoz is offline  
post #12876 of 12888 Old 02-17-2015, 11:37 AM - Thread Starter
AVS Special Member
 
Mr Bob's Avatar
 
Join Date: Jan 2000
Location: San Francisco Bay Area/San Lorenzo, CA., USA
Posts: 9,554
Mentioned: 2 Post(s)
Tagged: 0 Thread(s)
Quoted: 84 Post(s)
Liked: 85
I will be glad to usher you thru the realignment process for getting your light levels back. I do it all the time as part of my calibrations, but also do it on the phone with diligent and capable owners who are far away and don't want to take on the expenses of flying me in. Contact me and we'll set up a phone consultation.

b

Robert Jones
Image Perfection
510-278-4247
650-333-4808 cell
bob at imageperfection dot com
www.projectiontvtroubleshootingadvice.com
YouTube channel: mrbobbigscreen

Mr Bob is online now  
post #12877 of 12888 Old 02-17-2015, 11:39 AM - Thread Starter
AVS Special Member
 
Mr Bob's Avatar
 
Join Date: Jan 2000
Location: San Francisco Bay Area/San Lorenzo, CA., USA
Posts: 9,554
Mentioned: 2 Post(s)
Tagged: 0 Thread(s)
Quoted: 84 Post(s)
Liked: 85
Quote:
Originally Posted by Turnbough View Post
Thanks Mr Bob.. One of these days i may need to do that. With my resent issues with my 65313 I forgot to mention why I retired her to my parents house. I was able to find and pick up another WS-65813 this one looks to be completely factory stock including the glare shield, which works for the kids TV. So I now have two of these beautiful black bohemoths for me and my family to enjoy.

I'll have to read up on the cutoffs and see if its something I feel comfortable doing myself. Thanks again for the advice.
A 65813. You are stepping up in the world! Nothing beats those 9" guns, and with a 65" screen and glass front surface mirror, your set is actually brighter than mine!



b

Robert Jones
Image Perfection
510-278-4247
650-333-4808 cell
bob at imageperfection dot com
www.projectiontvtroubleshootingadvice.com
YouTube channel: mrbobbigscreen

Mr Bob is online now  
post #12878 of 12888 Old 02-18-2015, 01:32 AM
Newbie
 
Join Date: Feb 2015
Posts: 6
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 1 Post(s)
Liked: 0
Thumbs up

Quote:
Originally Posted by Photomotoz View Post
Hey guys,

I haven't looked at the coolant as I'm not 100% sure what to look for.
Get into your set like you're going to do a lens and mirror cleaning. Remove the top portion of your lenses as if you're going for a deep optics cleaning. Now, look down in there. You should be able to see the phosphor screen (a white block). There should be an absolutely clear and clean fluid, essentially invisible to your eye, between the innermost lens and that screen.

A small air bubble may be visible, that's no problem. What is a problem is a bunch of green, brown, or whatever color fluid.

Take a look at some Google images - you can tell very easily if your coolant is okay or not. Changing it out is another matter, because you really don't want to spill it all over the inside of your set on the PCBs beneath!

The coolant itself is cheap and you can get it off of Amazon. If your coolant is garbage, call up Mr. Bob or someone to guide you through the process. You could try it yourself - but I'd remove my boards from below first, just in case.

On a different note, I came here to say I will *NEVER* buy a convergence IC from eBay again. Two in a row that were Chinese "look-a-like" fakes, sold as genuine Sanyos "NEW".
Green-PEAs is offline  
post #12879 of 12888 Old 02-18-2015, 09:44 AM - Thread Starter
AVS Special Member
 
Mr Bob's Avatar
 
Join Date: Jan 2000
Location: San Francisco Bay Area/San Lorenzo, CA., USA
Posts: 9,554
Mentioned: 2 Post(s)
Tagged: 0 Thread(s)
Quoted: 84 Post(s)
Liked: 85
The best source for convergence ICs is www.tvrepairkits.com, where they have access to the original Sanyos. Union Electronics and MCM are also good places to get replacement ICs, tho they may not be the original Sanyos.

This entity also provides limited downloadable service manuals at half the price of other entities, like www.servicemanuals.net.

Not sure what set is involved with the coolant issue, but I have heard of no CRT RPTVs that are HDreadys that ever had that problem again, like the SD sets did. In the HD era, I have found that watching for "cooties in the coolant" has become a non-issue.

BTW, if you find an air bubble in there, just be sure it's out of the light path and it will also be a non-issue.

b

Robert Jones
Image Perfection
510-278-4247
650-333-4808 cell
bob at imageperfection dot com
www.projectiontvtroubleshootingadvice.com
YouTube channel: mrbobbigscreen


Last edited by Mr Bob; 02-18-2015 at 09:48 AM.
Mr Bob is online now  
post #12880 of 12888 Old 02-18-2015, 10:36 PM
Newbie
 
Join Date: Feb 2015
Posts: 1
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 2 Post(s)
Liked: 0
WS-65813 for sale in Phoenix

Wow, I'm truly impressed with the length of this post.

Anyway, I'm in Phoenix, and have a WS-65813 to sell. It's been replaced with a plasma so we could regain some storage space under it for the kids' toys and games.

I'm the original owner. It was placed in a custom sized entertainment center, and sat there it's whole life. It's just shy of about 10 years old. The picture is still wonderful, but the only maintenance that's been done on it was to replace the 4 capacitors on the DM board to correct the blinking light problem.

Anybody in the area interested?
sgivens is offline  
post #12881 of 12888 Old 02-19-2015, 06:01 AM
AVS Special Member
 
gbaby's Avatar
 
Join Date: Aug 2005
Posts: 2,289
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 146 Post(s)
Liked: 41
Quote:
Originally Posted by sgivens View Post
Wow, I'm truly impressed with the length of this post.
?
So am I.
gbaby is offline  
post #12882 of 12888 Old 02-19-2015, 10:48 AM - Thread Starter
AVS Special Member
 
Mr Bob's Avatar
 
Join Date: Jan 2000
Location: San Francisco Bay Area/San Lorenzo, CA., USA
Posts: 9,554
Mentioned: 2 Post(s)
Tagged: 0 Thread(s)
Quoted: 84 Post(s)
Liked: 85
Quote:
Originally Posted by sgivens View Post
Wow, I'm truly impressed with the length of this post.

Anyway, I'm in Phoenix, and have a WS-65813 to sell. It's been replaced with a plasma so we could regain some storage space under it for the kids' toys and games.

I'm the original owner. It was placed in a custom sized entertainment center, and sat there it's whole life. It's just shy of about 10 years old. The picture is still wonderful, but the only maintenance that's been done on it was to replace the 4 capacitors on the DM board to correct the blinking light problem.

Anybody in the area interested?
I would give second thoughts about offing it if I were you. I has the 9" guns, the only Mit 65" series that had that. In its present condition if it's never been cleaned or tweaked, it has the potential to look 10 times better than it does right now, and has at least 5 more years of life left, if not 10.

Why do you think this thread has been around so long??? I started it in 2006 and there are many many reasons why it has been around so long, all of them centering on how incredible these sets are!

And speaking of this thread, more than a million views so far. And that was last year...



b

Robert Jones
Image Perfection
510-278-4247
650-333-4808 cell
bob at imageperfection dot com
www.projectiontvtroubleshootingadvice.com
YouTube channel: mrbobbigscreen


Last edited by Mr Bob; 02-20-2015 at 10:50 AM.
Mr Bob is online now  
post #12883 of 12888 Old 02-20-2015, 11:00 AM - Thread Starter
AVS Special Member
 
Mr Bob's Avatar
 
Join Date: Jan 2000
Location: San Francisco Bay Area/San Lorenzo, CA., USA
Posts: 9,554
Mentioned: 2 Post(s)
Tagged: 0 Thread(s)
Quoted: 84 Post(s)
Liked: 85
Have I mentioned that these sets are capable of razor precision, in some cases better than fixed pixel? And a sense of depth that many flat panels can only dream of?

Come on over and experience mine and you'll see why so many of us are choosing to keep our CRT RPTVs, rather than going fixed pixel.

b

Robert Jones
Image Perfection
510-278-4247
650-333-4808 cell
bob at imageperfection dot com
www.projectiontvtroubleshootingadvice.com
YouTube channel: mrbobbigscreen

Mr Bob is online now  
post #12884 of 12888 Old 02-22-2015, 10:37 PM
Senior Member
 
toddman36's Avatar
 
Join Date: Jan 2015
Location: St. Louis, MO
Posts: 223
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 92 Post(s)
Liked: 21
Hi my parents have a 65 Mitsubishi crt rphdtv, think it was like 1600 when new many yrs ago. Dont remember the model number off hand, just that its a 330lb monster though!

The picture displayed is about 1 & 1/2 to 2"s to large! Is there a way without special service tools, to slightly shrink the displayed image? Thanks
toddman36 is online now  
post #12885 of 12888 Old 02-22-2015, 11:18 PM - Thread Starter
AVS Special Member
 
Mr Bob's Avatar
 
Join Date: Jan 2000
Location: San Francisco Bay Area/San Lorenzo, CA., USA
Posts: 9,554
Mentioned: 2 Post(s)
Tagged: 0 Thread(s)
Quoted: 84 Post(s)
Liked: 85
It's called overscan, and all CRT RPTVs were born with it, regardless of size of screen. A 73" has the same amount of overscan as a 40", regardless of brand.

Unfortunately when you alter the sizing registers of height and width to properly size your picture to your screen, all sorts of things come unhinged about the picture. Straight lines become curved, parallel lines become slanted against each other...in short your picture, while still watchable, becomes hosed. Whatever precision your picture had before you do it, that's just gone. I always recommend carefully making note of EXACTLY where the sizing registers started out before doing anything, so that when you see what has happened to your picture and how bad it has just become, you can get it back again with no fuss by following that bread crumbs trail back to where you started. On a Hitachi, that means carefully marking the height and width trimpots with very thin lines that go across the movable and non-movable sections so that when you turn those controls back to where you started, that line is again unbroken.

But overscan CAN be cured. It just takes a lot of very careful work, and there's no substitute for experience either. I specialize at it, but charge extra in my calibrations because even tho the end result is actually better than the original out of box condition, it takes extra hours to get there even when you are highly experienced at it.

And each brand has its own personality. There are special tricks I do with the bottom and top of the screen on Mit's, plus averaging the convergence error on the sides at their ends, and along with that I also work with the spacing of the vertical lines on the Pioneers. And the shaping of the boxes of the internal grid, to get them much more linear with each other after the sizing alterations. Both of those brands have an invisible row and column outside the actual viewable area of the screen that allow what is on the screen to be aided, and that is also very specialized work.

But it can be done. And your set will look marvelously better afterwards, along with being able to finally see lost areas of video real estate that are currently hitting the sides of the blackened optical cavity inside your set, and invisible to your eyes without having your view screen off. Like that guest who was just on the Tonight Show and is now in second chair next to the guest currently up. With overscan having been taken care of, you will now see the many antics of the guest who was just on, where that would not show up before, with the overscan in place. The giggles, the eyes directly on camera and looking at you the viewer, the body language... All this is lost with the factory-issue overscan in place.

It can be done with just the service menu, but the best way is called the shimming op, where you elevate the entire CRT array a few inches to resize things that way. It's a lot more work, but you put more of the CRT face area in play and viewable that way and wind up with a picture with more depth later, than if you just use the service menu.

If you do choose to use the service menu only, you might want to instead spring for a Lumagen processor, where you can alter the size of the image in it, before sending it on to your screen. It's not as good as the shimming op, but is as good as resizing via the service menu only, if you can afford that processor. Having the processor do all the resizing frees you from having to correct all the sloppiness later, caused by doing it either of the other 2 ways.

If you want my coaching on how to do it without making your picture worse in the process, I am available for that. Or just fly me in and turn me loose.



b

Robert Jones
Image Perfection
510-278-4247
650-333-4808 cell
bob at imageperfection dot com
www.projectiontvtroubleshootingadvice.com
YouTube channel: mrbobbigscreen


Last edited by Mr Bob; 02-23-2015 at 10:38 AM.
Mr Bob is online now  
post #12886 of 12888 Old 02-23-2015, 10:46 AM - Thread Starter
AVS Special Member
 
Mr Bob's Avatar
 
Join Date: Jan 2000
Location: San Francisco Bay Area/San Lorenzo, CA., USA
Posts: 9,554
Mentioned: 2 Post(s)
Tagged: 0 Thread(s)
Quoted: 84 Post(s)
Liked: 85
I am going to Portland Oregon and surrounding areas for a week at the end of March. I would love to schmooze with fellow CRT RPTV afficianados while there. Please contact me directly - not by pm please, do it by email - so we can find each other once I am up there. Beaverton, Hillsboro (home of Planar, the new owner of Runco), Milwaukie, Vancouver, Oregon City, Lake Oswego, Wilsonville...

b

Robert Jones
Image Perfection
510-278-4247
650-333-4808 cell
bob at imageperfection dot com
www.projectiontvtroubleshootingadvice.com
YouTube channel: mrbobbigscreen

Mr Bob is online now  
post #12887 of 12888 Old Today, 05:32 PM
Advanced Member
 
SiGGy's Avatar
 
Join Date: Jul 2004
Location: Lenexa, Kansas
Posts: 835
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 136 Post(s)
Liked: 153
Quote:
Originally Posted by Mr Bob View Post
I would give second thoughts about offing it if I were you. I has the 9" guns, the only Mit 65" series that had that. In its present condition if it's never been cleaned or tweaked, it has the potential to look 10 times better than it does right now, and has at least 5 more years of life left, if not 10.

Why do you think this thread has been around so long??? I started it in 2006 and there are many many reasons why it has been around so long, all of them centering on how incredible these sets are!

And speaking of this thread, more than a million views so far. And that was last year...



b
I had same TV (and another mitsu RPTV) fully Craig Miller calibrated. He was quite good and lets be honest a lot of people used his methods/techniques and still do

I've had a few Plasmas since the RPTV; and I've never once missed my RPTV.

However, it's not 2006 anymore ... and to continue being honest...

new 4K 10bit OLED(s)
new 10bit 4K FALD 2015 LCD(s)

Both will out perform the 9" gunned RPTV in many, many ways. Speaking for the OLED I can't think of one thing the CRT RPTV does better.

I think a lot of people are just holding on a bit longer; or maybe don't have the budget yet for a $4-8k TV again. I know I don't! But I wouldn't swap my current set back for my old RPTV; even with new 9" guns, fresh geometry, convergence, gamma, WB, CMS adjusted, ringing filters, blacked out, I2C hacks (and so many other tweaks).

Once you see a 4K OLED in a light controlled room (or even daylight compared to a RPTV) playing "old" 1080p BR material you'll be blown away. Then when you see something that has been mastered in 10bit (and I don't mean HDR or 4k). It's mind blowing. 4K in 10bit itself is quite good too though

Prices on them will drop in next 18 months. And for those who can afford it, more power to them!

I myself am waiting for the price drop


I'm sure someone on here like yourself might want the rptv then... It is a fun hobby if you're an electronic person and are into tweaking stuff. As well own a colorimeter or photo-spectrometer. I have 1000's of hours in my old RPTVs and all of my friends doing all sorts of work. Now I'm trying to see if anyone wants my 65" Mylar Grids... So far no takers for free... To the trash they'll go sometime this year I guess.

So if there IS a DIY person who wants to take this puppy on, you'll need the grids I'm offering; for free. Find my classified AD on here...

-SiGGy

Last edited by SiGGy; Today at 06:42 PM.
SiGGy is offline  
post #12888 of 12888 Old Today, 09:21 PM - Thread Starter
AVS Special Member
 
Mr Bob's Avatar
 
Join Date: Jan 2000
Location: San Francisco Bay Area/San Lorenzo, CA., USA
Posts: 9,554
Mentioned: 2 Post(s)
Tagged: 0 Thread(s)
Quoted: 84 Post(s)
Liked: 85
I hear you. I have seen the 4K OLED and have been blown away myself. There truly is nothing the CRT can do better, I know that. It will eventually take CRT's place.

But till then - till the prices come down on still highly advanced tech - I have seen OLED out there in the marketplace, and I have seen 4K, but not 4K OLED being sold, not yet - I am sticking with the next best thing. I have never been an early adopter. Have never had that kind of cash.

And I have learned a few things myself from Craig Miller! Watched him do a cal once, had to come back 5 hours after he started the reconvergence process, to watch him finish the job, since he always took every cursor point on every color back to zero to start completely from scratch. He was the consummate perfectionist. One thing he taught me was how to isolate colors in the convergence menu.

Yes it is a great hobby, but still saves owners who don't have the scratch for buying new thousands, by being able to capture the essence of a new piece from having their old piece looking better than new every night. It's rewarding too.



b

Robert Jones
Image Perfection
510-278-4247
650-333-4808 cell
bob at imageperfection dot com
www.projectiontvtroubleshootingadvice.com
YouTube channel: mrbobbigscreen

Mr Bob is online now  
Reply Rear Projection Units

Tags
Pioneer Elite , Panasonic Tc P65v10 65 Inch 1080p Plasma Hdtv , Plasma Hdtv
Gear in this thread - P65v10 by PriceGrabber.com

Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page


Forum Jump: 

Posting Rules  
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off