AVS › AVS Forum › Display Devices › Rear Projection Units › Official Toshiba H83/H84 CRT Thread
New Posts  All Forums:Forum Nav:

Official Toshiba H83/H84 CRT Thread - Page 95

post #2821 of 2833
10/19/12 at 10:08am
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.
Reply
Reply

AVS Top Picks

post #2822 of 2833
11/9/12 at 11:32am
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
Reply
Reply
post #2823 of 2833
11/9/12 at 12:00pm
I suggest posting this on the Don't Dump Your CRT RPTV thread, currently only one slot below. Answers are there.
Reply
Reply
post #2824 of 2833
11/9/12 at 12:27pm
Sounds like your passive power supply is no longer active, and thus the circuitry it feeds is not receiving commands and acting on them.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
Reply
Reply
post #2825 of 2833
11/9/12 at 1:00pm
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
Reply
Reply
post #2826 of 2833
11/12/12 at 10:44am
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
Reply
Reply
post #2827 of 2833
11/12/12 at 11:32am
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
Reply
Reply
post #2828 of 2833
11/12/12 at 11:33am
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
Reply
Reply
post #2829 of 2833
11/12/12 at 12:30pm
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
Reply
Reply
post #2830 of 2833
11/12/12 at 1:18pm
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
Reply
Reply
post #2831 of 2833
11/16/12 at 5:01pm
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
Reply
Reply
post #2832 of 2833
11/17/12 at 1:20am
Ottawa,

Sounds like you got lucky Ottawa. Good for you.

Rick
Reply
Reply
post #2833 of 2833
11/19/12 at 8:11am
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
Reply
Reply
New Posts  All Forums:Forum Nav:
  Return Home
  Back to Forum: Rear Projection Units

AVS Top Picks

AVS › AVS Forum › Display Devices › Rear Projection Units › Official Toshiba H83/H84 CRT Thread