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Official Toshiba H83/H84 CRT Thread - Page 95

post #2821 of 2859
Quote:
Originally Posted by gagjag View Post

What about the right side where it's brown and green?

Actually looking at it in better lighting, it looks more like brown and grey.
post #2822 of 2859
I have an older rear projection CRT, the Toshiba 65HX93 model. It's performed quite well for me since I purchased it in 2003-2004.

Today I was doing some work on an electrical circuit in another room. I was listening to music from my satelite, and i noticed that when I flipped off the correct circuit breaker, that circuit also controlled the TV/satelite. I had not thought about the fact that my TV was on.

I went ahead and did what I needed on the balast, and then turned power back on. When I went to turn on the TV, it wouldn't start. No light no pic nothing. I tried unplugging, and i can hear a noise when I plug it back in, but still no light or pic. I tried using the reset button on the front panel, but that didn't help.

Is there a fuse that might have blown inside the TV? does anyone know where it's located? This is a 65 inch rear projection that come aprt in two pieces, so not the easiet to take apart, but if I knew what I was looking for maybe I could replace a fuse..

I've been pretty happy with this TV and i'm not anxious to replace it.

Any info would be appreciated.

Thanks
Rick
post #2823 of 2859
I suggest posting this on the Don't Dump Your CRT RPTV thread, currently only one slot below. Answers are there.
post #2824 of 2859
Sounds like your passive power supply is no longer active, and thus the circuitry it feeds is not receiving commands and acting on them. A main fuse right up front in the operations chain might be out. I would check the 5v passive supply and make sure it's up. The wall 120VAC voltage going into that section sounds like it's happening since you can hear something upon plug-in, but not delivering that 5v out the other side of that power supply, to the rest of the set. The micro is not turning things on when told to. Need to see that that micro is getting its 5v, first off.

b
Edited by Mr Bob - 11/9/12 at 1:19pm
post #2825 of 2859
Thanks Mr. Bob, I see some panels on the back that I should be able to open. I'll look for a fuse down near where the 120v outlet goes into the set.

thanks,
Rick
post #2826 of 2859
Well, I tried accessing the back and didn't get very far. I wasn't able to get far enough in to see much of anything. I called a local TV repair tech and talked with him on the phone. He was familiar with the set, and and explained that you had to take the light box off to even start getting to the correct board. He said that model was one of the hardest TVs to work on, simply because of the way it was put together.

I'm not that confortable in electrical repair, so I don't think I'll be making an effort to replace any parts myself.

In any event, it looks like I'll be shopping around for a replacement.

Thanks for info.

rick
post #2827 of 2859
No surprise to me about Toshibas. Aside from convergence repairs and simple things like CRT replacement - which never happened on my watch on this brand - I swore off doing troubleshooting and repair on Toshibas a long time ago. They seemed to be an incessant PITA every time I worked on one, for the same reasons your tech was talking about.

b
post #2828 of 2859
No surprise to me about Toshibas. Aside from convergence repairs and simple things like CRT replacement and re-setup - which never happened on my watch with this brand - I swore off doing troubleshooting and repair on Toshibas a long time ago. They seemed to be an incessant PITA every time I worked on one, for the same kind of reasons your tech was talking about.

b
post #2829 of 2859
They are well and solidly built machines for sure, but when they go, it is easier and often cheaper to buy new...which keeps them (and all CE companies) in business. wink.gif
post #2830 of 2859
True of Toshibas, not true of other CRT brands, which are much more straightforward to repair. Many DIYers do their own repairs on most brands other than Toshiba. IMHO those non-Toshiba sets should be repaired and kept alive, as they are 20 year service life sets.

b
post #2831 of 2859
Quote:
Originally Posted by OttawaDave View Post

Hey there AVS experts! I've got a 51hc84, which I love, but a recent storm and power surge seems to have blown something. After the power went out, we went to turn on the set and all I get is a clicking relay, then the flashing power light indicator. Actually, the sound is more like two clicks, one powering on, the second powering off...
Anyway, google and this forum seem to suggest that this is a standard fault mode, but I suppose I could be looking at a number of failures.
It's a shame though, the tv still impresses with it's picture, and save for some features, I give it almost the same value as my new Panasonic 3d plasma. The really nice thing about the tv is that it doesn't need any auxiliary sound...and as the unit is in our family room, I'm happy to have great sound without the added clutter/cost of a htib or similar setup.
Of course this is probably a common question, but is it safe to assume that the evaluation and repair will likely cost more than a replacement tv?
I am going to try to figure out how to transport the tv to the shop, where a $40 diagnostic will shed some light...any tips on safe transport? Is it possible to remove the screen assembly so that the tv will fit in a van?...otherwise I will need to borrow a friend's pickup and wrap the tv in blankets and a tarp.
Thanks in advance for any advice/guidance,
Dave,
Ottawa, Ontario

Hey folks - since I posted here a while back, I thought I'd update you on progress....which, due to having no time to haul the big TV down to the repair shop, has been extremely slow.

Well I finally got the TV loaded up and dropped off at the shop - to my surprise, the repair is going to come in under $200, which means that my old CRT RP will live to fight another day. I'm quite pleased with this since I'd have had a hard time tossing the TV after only 7 years in service. Anyhow, Mr. Bob, I'll likely be in touch at some point to talk about any adjustments/cleaning that might be needed, as time permits. I'll post back here once I get everything back in place and can report on how the unit is performing.

Cheers,
Dave
post #2832 of 2859
Ottawa,

Sounds like you got lucky Ottawa. Good for you.

Rick
post #2833 of 2859
Quote:
Originally Posted by OttawaDave View Post

Hey folks - since I posted here a while back, I thought I'd update you on progress....which, due to having no time to haul the big TV down to the repair shop, has been extremely slow.
Well I finally got the TV loaded up and dropped off at the shop - to my surprise, the repair is going to come in under $200, which means that my old CRT RP will live to fight another day. I'm quite pleased with this since I'd have had a hard time tossing the TV after only 7 years in service. Anyhow, Mr. Bob, I'll likely be in touch at some point to talk about any adjustments/cleaning that might be needed, as time permits. I'll post back here once I get everything back in place and can report on how the unit is performing.
Cheers,
Dave

I'll be looking forward to that -

wink.gif

b
post #2834 of 2859
Hi, I got a Toshiba 65H84 from a friend. Everything seem to be fine except the screen is blurry, dark and pinkish. I tried the picture settings and auto convergence but nothing worked. From what I have read online, I need to change the CRT fluid or thermal paste?

Thanks
post #2835 of 2859
Can you open it up? Your optics are probably covered in dust. It should be bright, but it does have a slight pink/orange tint to it compared to a calibrated set.
post #2836 of 2859
I can try to open up and clean the dust. Can I change the lens coolant on this unit? From what I have read. 65H84 a CRT on amazon.
post #2837 of 2859
I have never seen a Tosh in need of coolant changeout, so I would not worry about that. Optics cleaning is the key there, and I am your source for doing that expediciously and safely.

Colorations are most likely grayscale, and ISF takes care of that. Thermal paste is only for changing out convergence ICs or other heat-generating semi-conductors.

If you want in depth answers to these conditions, you know how to reach me directly.

b
Edited by Mr Bob - 6/17/13 at 12:19pm
post #2838 of 2859
Quote:
Originally Posted by OttawaDave View Post

Hey folks - since I posted here a while back, I thought I'd update you on progress....which, due to having no time to haul the big TV down to the repair shop, has been extremely slow.

Well I finally got the TV loaded up and dropped off at the shop - to my surprise, the repair is going to come in under $200, which means that my old CRT RP will live to fight another day. I'm quite pleased with this since I'd have had a hard time tossing the TV after only 7 years in service. Anyhow, Mr. Bob, I'll likely be in touch at some point to talk about any adjustments/cleaning that might be needed, as time permits. I'll post back here once I get everything back in place and can report on how the unit is performing.

Cheers,
Dave

Still waiting to hear from you, Dave. This was posted back in November. You gonna be in touch? Can't wait to help you get your set sharp again.

b
post #2839 of 2859
dust covered all 3 lenses. Cleaned them all and didnt notice a difference. Still somewhat blurry and hard to read. Not a 3D like convergence issue tho. Any other suggestion?

edit: i just turned on the tv without the top screen and found some bugs in green and blue lens. There is a turning knob on each lens. Should I mess with that?
Edited by ayavskyo - 6/17/13 at 1:53pm
post #2840 of 2859
You are obviously just poking around in there and exploring. I recommend you cease and desist immediately, and get in contact with somebody who knows what they're doing before you proceed in there any further. You have no idea how much damage to your image you could do in just a few seconds.

I am available if you want my help.

B
post #2841 of 2859
I second Bobs recommendation and can vouch for Bob should you want to fix your set to better than new! wink.gif
post #2842 of 2859
Quote:
Originally Posted by Mr Bob View Post

You have no idea how much damage to your image you could do ...

or to yourself! High voltages in there.
Edited by AVfile - 6/17/13 at 5:48pm
post #2843 of 2859
Quote:
Originally Posted by ayavskyo View Post

dust covered all 3 lenses. Cleaned them all and didnt notice a difference. Still somewhat blurry and hard to read. Not a 3D like convergence issue tho. Any other suggestion?

edit: i just turned on the tv without the top screen and found some bugs in green and blue lens. There is a turning knob on each lens. Should I mess with that?

What resolution are you feeding it and what is the source?


Bugs seriously? Those tubes could have fungus too. Was the TV sitting in his garage for long?
post #2844 of 2859
Quote:
Originally Posted by AVfile View Post


Bugs seriously? Those tubes could have fungus too. Was the TV sitting in his garage for long?
No...Just got under the assembly in most likely case. Take them off, clean the dead bugs, and VOILA! wink.gif
post #2845 of 2859
I cleaned the bugs and lens. Did manual convergence 3 times. Its getting better but still not close to very clear. It still has a pink tint to it but i noticed after a while the pink tint will fade away a little bit. Its on 1080i settings and HDMI.
post #2846 of 2859
I'm trying to connect the PS3 to the TV through HDMI 1. I thought I bought the correct cable that has the green, blue, white , etc but when I plug it into the TV and then into the ps3 I don't get a picture or sound. Could I have bought the wrong cables? Does anyone know the exact type of cables I should buy? Thanks in advance!
post #2847 of 2859
Quote:
Originally Posted by Dredd1050 View Post

I'm trying to connect the PS3 to the TV through HDMI 1. I thought I bought the correct cable that has the green, blue, white , etc but when I plug it into the TV and then into the ps3 I don't get a picture or sound. Could I have bought the wrong cables? Does anyone know the exact type of cables I should buy? Thanks in advance!

HDMI is only 1 cable. What you have are component cables. There are 3 cables to carry the video signal. They are blue, red, and green. You will also need two rca cables to carry audio. These are color coded red and white.

You want to connect those to the color stream inputs on your TV and select the appropriate input.

If you want to use HDMI you'll need an HDMI cable which carries the video and audio signals in one cable.

Hope this helps!
Edited by obscbyclouds - 6/22/13 at 1:04pm
post #2848 of 2859
Quote:
Originally Posted by Dredd1050 View Post

I'm trying to connect the PS3 to the TV through HDMI 1. I thought I bought the correct cable that has the green, blue, white , etc but when I plug it into the TV and then into the ps3 I don't get a picture or sound. Could I have bought the wrong cables? Does anyone know the exact type of cables I should buy? Thanks in advance!

If you did use an HDMI cable and connect it to the TV, sometimes the signal cuts out on a PS3 (due to the HDMI versions/handshake - just that way).

If you have the component cables (which it appears that you do) - and really anytime you switch cables to use a different type of connection, say to a different TV - then you need to perform a video reset on the PS3 so that it when it starts up it will perform an auto-dection of what output it needs to use:

(make sure the TV is powered on and your chosen input is active)
  1. Turn off the PS3.
  2. Press, and hold the power button on the PS3 until you hear a 2nd beep. It will beep once when you initially press it, and a 2nd time shortly thereafter. Once you hear the 2nd beep you can remove your finger from the power button.
  3. The PS3 should handshake with the TV via HDMI (or other video input) and automatically select the appropriate resolutions.



Or take your pick from the search results: http://www.google.com/#sclient=psy-ab&q=ps3+video+reset&oq=PS3+vid&gs_l=hp.3.1.0l4.435.1840.0.3541.7.7.0.0.0.0.164.792.3j4.7.0....0...1c.1.22.psy-ab..0.7.735.IwldurKQnV0&pbx=1&bav=on.2,or.r_qf.&bvm=bv.49784469,d.aWM&fp=c86a68bc2f32eea2&biw=1798&bih=848
post #2849 of 2859
Component, RGB and DVI are the only other ways to get HD to your set, and neither component nor RGB will do a handshake with the set. Nor give it any indication of what scanrate the display can or cannot do, nor how high the scanrate of the display will be. Only HDMI will do that.

There's some chance DVI would do it, but I think that's strictly an HDMI thing. It's definitely not a component or RGB thing.

b
post #2850 of 2859

have a new crt 46h84 i just bought from a friend, 200 dollars, now it has the lines problem when the tv just turns on, about 15 minutes later the lines are gone and the picture is near perfect. i am thinking of sending the scan module in for repair. does this usually fix the issue, also the sides of the screen have a small reddish or pinkish tint, ive adjusted all the controls behind the speaker grill to my best ability. how can i prolong the remaining life of this tv, and is it worth it? what other parts go bad, i also cleaned the mirrors and the lenses. i need a stand for it, id like the original stand, but cant find it. thanks for any info

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