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/diy/ - Do-It-Yourself

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Anon 05/22/14(Thu)14:09 UTC+1 No.641637 Report

Hey DIY, I was wondering if you guys could help me.

I scored a free Hitachi 53sbx01b CRT Rear projection TV from Craigslist. I cant get it up the stairs to my apartment because the stairs are too narrow, there is 2 90 degree turns going up, and the railing is about 3 feet high all the way up. While Im sure we could get it up there wit the help of 2 Russian thugs, I dont know any. What I want to know is 1) Can I take it apart and re assemble it and not degrade the picture Quality and 2) If I take it apart could I use it as a Projector?

Pic related: its my heavy as dicks TV
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Anonymous 05/22/14(Thu)14:16 UTC+1 No.641640 Report

>1) Can I take it apart and re assemble it and not degrade the picture Quality

We don't know. Can you?
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Anon 05/22/14(Thu)14:19 UTC+1 No.641644 Report

>>641640

I once took apart a fan, greased the oscillating motor and put it back together and it still works.. however i still had about 10 screws left over.

I know not to let it bang up against anything and be to real careful about it.
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Anonymous 05/22/14(Thu)14:20 UTC+1 No.641645 Report

>>641637
does the base not come away?
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Anon 05/22/14(Thu)14:24 UTC+1 No.641646 Report

>>641645
Probably. I havent tried taking it apart yet. I dont want to fuck it up
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Anonymous 05/22/14(Thu)14:25 UTC+1 No.641647 Report

>>641640
Don't speak for everyone. I in fact happen to know.
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Anonymous 05/22/14(Thu)14:26 UTC+1 No.641648 Report

wrap it in 100 blankets and cardboard, haul it to the top
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Anon 05/22/14(Thu)14:34 UTC+1 No.641650 Report

>>641648
Wouldnt fit without all the blankets. Plus its 213lbs now I dont need anymore weight added to it
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Anonymous 05/22/14(Thu)14:46 UTC+1 No.641654 Report

yes you can take it apart. all the working bits are in the cabinet part at the bottom. the screen part and back bezel are just plastic and a giant fresnel lens. just dont get finger prints or scratches on the lens.
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Anonymous 05/22/14(Thu)15:05 UTC+1 No.641659 Report

>>641654
if it's anything like my rptv you may be able to get away with just removing the front assembly.

get the service manual - for my mitsubishi it showed how to take it apart
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Anon 05/22/14(Thu)15:13 UTC+1 No.641661 Report

>>641659
Just looked it up online, doesnt tell how to. Infact it warns against user disassembly
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Anonymous 05/22/14(Thu)15:41 UTC+1 No.641667 Report

>>641647

... well? Can he?
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Anonymous 05/22/14(Thu)15:51 UTC+1 No.641668 Report

>>641661
As do ALL user manuals
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Anon 05/22/14(Thu)15:56 UTC+1 No.641673 Report

>>641659
>>641668

Not this guy's

Anyways I think Ill just go ahead and try what >>641654 said and see if I can remove the screen and back bezel. Hell as long as no one gets electrocuted I have noting to lose anyways
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Anonymous 05/24/14(Sat)07:22 UTC+1 No.642480 Report

>>641637
Did you try taking the hinges off the stairs off there hinges?
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Anonymous 05/24/14(Sat)07:37 UTC+1 No.642487 Report

>>641637
Normally the top part can be easily removed
Look for the user manual and service manual of this TV
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Anonymous 05/25/14(Sun)05:44 UTC+1 No.642989 Report

You would need some sort of focusing lens but yes, you could likely get the thing to work as a projector if you had a mirror to boot. It's already a projector as-is.
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Anonymous 05/27/14(Tue)23:03 UTC+1 No.644294 Report

>>641637
Block and tackle, hoist it up through a window

Depending on how that railing is mounted, you might be able to take that down and call the Russians to help you get it up.
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Anonymous 05/27/14(Tue)23:21 UTC+1 No.644307 Report

>>641637
I know cabinet TVs pretty well, and I would recommend not dismantling it if you've never worked on them before. They can be quite finnicky, and there are a lot of parts that can be broken once uprooted from the frame/saddle/case. If you're gonna give it a shot anyway, be very careful with the optical assembly (pic related, the thing with the lens/lenses.)

I guess you technically could use the optical as a projector but the picture quality is going to be terrible, the lens/lenses on the optical are adjusted to reflect off the mirror mounted onto the back of the main cavity and display on a 53" screen. Unless you mounted a mirror in the middle of your living room and positioned it perfectly with the optical engine, you'd have an extremely distorted picture. It'd be a better use of time to scrap the TV for all the circuit boards and wire and then buy a projector.
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Anonymous 05/28/14(Wed)01:01 UTC+1 No.644360 Report

whats wrong with where it is now?
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Anonymous 05/28/14(Wed)13:17 UTC+1 No.644548 Report

>>641637
nonononono no

Don't take it apart. The focusing and alignment of the big ass mirror inside have to be perfect. And, it won't be perfect when you put it back together, trust me on that. Just hire some people to carry it up. Go to a professional moving company and tell them the situation. It'll be fairly cheap and they will have the proper tools to do this with.
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Anonymous 05/28/14(Wed)13:47 UTC+1 No.644551 Report

>>644360
Just get an above ground pool ladder--no one will think it's ghetto... >>644360
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Anonymous 05/28/14(Wed)14:10 UTC+1 No.644557 Report

>>641637
Not sure about that model but some of them have liquid cooled picture tubes. If the liquid leaks out onto the circuit boards it ain't good. This sometimes happens when seals perish anyway.

I'd try and get some bros to help you and make sure you keep it level wile your going up.
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Anonymous 05/31/14(Sat)19:42 UTC+1 No.646043 Report

>>641637
Why would you take that, it's literally garbage. Rear projection is the shittiest possible tv
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Anonymous 06/01/14(Sun)00:10 UTC+1 No.646174 Report

>>646043
Not true. Actual refresh rates in the hundreds of Hz instead of simulated ones, same with contrast ratios, better sound quality if you use the built-in speakers, very few useless/overblown features like 3d/quad pixels/dynamic everything. Sure sounds like crap to me...

If I wanted a giant smartphone, I'd get one.

There are only 3 things I see that are detractors: size, weight, and (in the case of projection tvs) you'll have to replace the bulb every so often.
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Anonymous 06/01/14(Sun)01:05 UTC+1 No.646200 Report

>>646174
(not the other poster)
To be fair a lot of CRT rear projection TVs ARE fucking garbage and look like shit. Especially if they were from the 80s or 90s. People give them away for free or throw them out. I didn't even realize that they were still being built in the 00s.
As for the refresh rate, I don't believe for a second that CRT rear projectors refresh in the hundreds of hertz. I've never heard of video crts refreshing at much higher than 120Hz so I'd need to see it to believe it.

Maybe you're thinking of DMD DLPs, which can switch all the frame's mirrors on or off at kilohertz frequencies, but that doesn't mean you actually get full colour video at kilohertz (or even 100s of hz) frame rates, because the mirrors can only switch completely on or completely off and and must be PWM toggled to give the illusion of shading.
For example one high end DLP chipset (http://www.ti.com/lsds/ti/dlp/095-1080p-chipset-products.page) lists a frame rate of ~4KHz for 1bits of brightness and 120Hz for 8-bits of brightness. So, no, not multiple hundreds of Hz refresh.
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Anonymous 06/01/14(Sun)17:36 UTC+1 No.646558 Report

The top section (screen & mirror) can be removed from the bottom section (electronics & projector) and re-assembled and it should not mess up the image. I have taken mine apart a few times to clean dust off the mirror & the back of the screen with no problems.
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