I replaced the main board of this TV with brand new parts made in 2023!

Comments · 2.1K

• GR

  @greghowell9986 · 2 years ago

  I’d bet there’s a decent market for retro gamers.

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• EF

  @eformance · 3 years ago

  I think the language support hints at what the purpose of these boards is:  repairing TVs in parts of the world where the cost of living is very low and incomes are very low.  All those videos of people building something new or welding an engine block back together, they aren't just clickbait they are really doing this on a regular basis.  Repair culture is at the heart of many low cost countries.

  1.5K

• BL

  @blahorgaslisk7763 · 3 years ago

  This brings back memories. I learned TV repair in school. a friend and I plowed through the books several weeks before the rest of the class and the teacher assigned us a broken TV. We eliminated point after point until the only thing left was the fly back transformer, and it wasn&apos;t putting out any power.<br><br>Found a burned out power transistor, swapped it and burned out the replacement. Found the real problem and fixed that, swapped in a second replacement transistor and it should be working, but without assembling everything we didn&apos;t know for sure. Here we didn&apos;t know how to proceed. We didn&apos;t have any instrument capable of measuring voltages in the tens of thousands range so how could we test what we got there? I asked the teacher and he told me to peel back the isolation from the terminal on the transformer. Then with the power on take a screwdriver rated for 100KV and poke at the bare terminal. I asked what I was looking for and he just said I&apos;d know when I saw it. <br><br>Well the &quot;it&quot; was a two centimeter electrical arc jumping between the terminal and the screwdriver. Scared the shit out of me and left a deep burn mark on the screwdriver. My teacher laughed his ass off. Never liked working on the high voltage parts of TV&apos;s after that. Turns out he had that TV for several years and we were the first to get a picture out of it again. The thing is he could have diagnosed and repaired it in thirty minutes while we worked on it for days. That&apos;s what experience will do for you.<br><br><br>And I never dug into a TV again after that!

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• RT

  @rtwolfrt · 2 years ago

  Was in the Philippines recently, and rented a karaoke machine... The crt had the buttons glued to the front the same as your set now does.<br>They had either replaced the board like you did, or swapped the board from another tv... I love the effort and skill they show in repair there.

  57

• MA

  @MadManDarkJedi · 3 years ago (edited)

  As a viewer from Hong Kong, I am surprised there are still some companies made crt TV in China. The result is pretty impressive. ❤

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• KP

  @kpanic23 · 3 years ago

  Hey Adrian,<br>With your degaussing coil issue: <br>Just replace the thermistor with the one from the original board and you should be fine!

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• RE

  @reidster87 · 3 years ago

  The thing that kind of boggles my mind is not only does the flyback have the 2023 date sticker on it, but the PCB has a 2021 date silkscreened on it-- meaning that the PCB design was revised that recently! &nbsp;Wild that there&apos;s enough demand for CRT TVs and components to be actively developing products in the 2020s.

  94

• FI

  @firesyde424 · 3 years ago

  I remember about 7 or 8 years ago, working on a Mitsubishi 60&quot; rear projection CRT TV from the late &apos;90s. &nbsp;It had RGB convergence issues that I later discovered were the result of cracked solder. &nbsp;I was surprised to find out that, not only did it use convergence amplifiers from the &apos;70s, they were still in production and I got a complete set for less than $20, shipped in under a week!

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• JU

  @justinhawkins101 · 3 years ago

  The unsung hero for retro gaming right here. Helping keeping crt’s alive for another however many years 😊

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• AN

  @AndyHullMcPenguin · 3 years ago

  That looks like a possible solution to dead CRT based arcade machines. Some of the CRT driver boards for those are full of unobtanium parts (particularly the flyback transformers). This might be a good replacement for the original board.

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• UL

  @ultrametric9317 · 3 years ago

  It amazes me that ALL the tremendous R&amp;D effort in television broadcasting on analog CRTs, dating back to the 1920s, finally came down to a board that you bought for $50 bucks which has a built-in game. An amazing 100 years!

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• DE

  @devttyUSB0 · 3 years ago

  You may call it janky, but i think it&apos;s a great swap and now you have a very capable CRT screen with RF! Get well soon, Adrian! All the best.

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