Dinosaur TV

I have an old 50-inch front-projection TV sold by Sears under the brand Proformance around 1984. The picture is still good overall, but small text such as a ticker at the bottom and sports scores are out of focus. Large text is okay. It seems like it needs to be re-focused and realigned on the screen, but I don't have a manual and neither does the Internet. I also don't want to put any tech money into this TV, so hopefully I can do the adjustment myself. Included in this message are pics of the TV and the problem along with the control panel. Is there anything I can do to correct these problems?

I found a link to a procedure to refocus a 3-CRT rear-projection TV, and I wonder if it will work from the front controls of my TV?


Wow, what a dinosaur! I found one online that sold at auction for $5.00!

From the photo of the control panel you sent, you can display an internally generated crosshatch pattern, which is necessary to make any adjustments. There are recessed set-screws to adjust something horizontal and vertical in the red and blue CRTs so they coincide with the green, but I don't know if they adjust position or zoom. Also, I assume you can adjust the focus of the CRTs directly on the lenses. The procedure you found online does not look all that helpful for your situation.

But even at its best, this thing is no match for even a mediocre modern flat panel. The screen is 4:3 with a compound curve and probably very high gain, so there's only one viewing location that's going to look any good at all—and it's never going to look very good compared with modern TVs. Honestly, unless you're a serious gearhead who enjoys fiddling with old equipment, I wouldn't waste my time.

If you have an A/V question, please send it to askscottwilkinson@gmail.com.

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notabadname's picture

That is too funny. Sadly, I can remember the days of those TV's clearly. My, how far we've come.

abentrod's picture

I used to sell those back in the day, have not seen one since 1988!
even has the matching vhs recorder. really they were a bear to align
back then and with out training or a manual best thing to do is wait for a neighborhood recycling day and recycle it.

capkingy's picture

I remember a family friend had one of those with a RCA CED disk player. What a trip down memory lane. :)

gunhed's picture

I would suggest you look at www.curtpalme.com where you will find a wealth of information on CRT projectors. Send Curt an email if detailed information on your projector is not there as I have found him to be very helpful. If you like the picture CRT produces then you will be happy to know they are still for sale and are 3D capable !

thekane89's picture

i have the original tech schematics from 1984 in manual form i have the very same tv and i love using it great center piece to talk about there is a way to do the alignment of the screen from the inside the tv i would need to figure out how to scan the manual as it is a fold out and is longer than a scanner(i think havent checked tho) email me and i can give you some more detail about it and locations to find the adjustments


thank you

matt83's picture

i have a 1984 proformance 50 inch projection tv sold by sears and i need a new screen for it and i cannot find one anywhere if anyone has one or knows where i can get one let me know

abacusm's picture

Hi there,

I have a 50" screen from 1982. Do you still need a replacement screen?

Send me an email abacusm@hotmail.com

I can send you photos.

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