I Bought 2x "UNTESTED" Grandstand Astro Wars.. Can I fix them?
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- Опубликовано: 19 окт 2024
- I bought 2x Untested Grandstand Astro Wars from a seller on eBay.
We all know what "Untested" usually means..
Come Join me while I attempt to repair them.
I have just repaired an “invader from space” with the same fault. I can only assume we visited the same forum. Like you, I too could not find a 140v zener, but I had not thought of doing what you did. So after watching this video, I did exactly that. So thanks to you!
No problem, glad you got it fixed 👍
I never would have thought to stick 3 diodes together. Another lesson learned, Thank you.
Cheers Fred 👍
Thank you so much. I cant believe that a 140v diode is required for a 6 volt, battery operated gadget. I thought i misheard you until you started lining up diodes to make up the 140 volts. Amazing. Shows you how much i know.
I know these VFD devices run the display at quite high voltages, the 140v diode thing came from another channel.
Keep the videos coming. Loving the milwaukee series!
Thanks Jeffrey. I've got about another 6 milwaukee repairs in the pipeline!
I remembered having an upright space invaders but couldn’t remember. Woke up today with Grandstand in my head. Nice fix… :)
Thanks Jason. I've fixed quite a few of these types of games, and more recently I bought a broken 1up Street Fighter cabinet, which was faulty. After fixing the original faulty I convert it to play over 7,000 games if you didn't see that one.
Took mine apart as an 8 year old...no clue. Great to see this 👍
Thanks DAD TDM!
you and me both
I was banking on capacitors, o well, u won!
Cheers Tom 👍
27:15 It *might* have been easier (and less risky for the screen) to put them on the trace side given how much space there seems to be inside the case
Loved it
Thanks!
Nice!
Thank you!
Hello, the game was running on batteries, but I wanted to check if it works on the power supply and I gave it 7 or 9 volts, I don't remember exactly, and something burned, I watched most of the repair videos on YT. I replaced several elements, such as NEC transistor 2SD882, 2SC945 C945, but it still doesn't work, and I don't know what to do anymore - I don't know how to check if the integrated circuit hasn't burned, hmmm. When I turn it on from the battery, the 2SD822 transistor burns out. Or it was completely damaged, but I have a glimmer of hope that it wasn't ;/
ehhhh, I'm an electronics engineer :)
It's been a while since I worked on one of these, there is a thread here which shows voltages etc which you might be able to compare against. www.handheldmuseum.com/forum/viewtopic.php?t=2316
Thank you very much - I don't know if I can handle it, but I'll try! = have a good day!@@BuyitFixit
ive gotten lucky with untested stuff on ebay. it depends a lot on the seller being honest i guess. some can try to get over on you by saying its untested but not always.
I think it's more the exception than the rule, but yes totally depends on the seller 👍
I have same problem on my tablet can u tell me what transistor should i buy?
I'm fairly sure it was a 2SD882 transistor. It should have a marking of D882 on it.
Hope that helps 👍
There I was screaming at the screen....NOOOOO the bands have to face the same way. Silly Me.
😂😂😂😂
For the ones looking for a 140V Zener diode: 1N5382B
Thanks for sharing 👍
According to eBay dictionary:
untested (adjective)
(1) already tested
(a) broken
(b) dead
(2) someone been there before you
(a) unsuccessful prior repair attempt
(b) missing screws
😂😂😂😂👍