Amiga 500 Repairs Part 2 - contacts and keyboards

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  • เผยแพร่เมื่อ 19 พ.ย. 2024

ความคิดเห็น • 33

  • @loopymind
    @loopymind ปีที่แล้ว +4

    To be hounest, for some reason I love seeing retro-brighting, in a time lapse :)

  • @gertsy2000
    @gertsy2000 ปีที่แล้ว +1

    Amigas back and running is always a good thing! Little springs are like little lemmings just jumping off the table!.

  • @ralfr.5974
    @ralfr.5974 ปีที่แล้ว +2

    It is a Hi-Tek Keyboard with Space Invader Switches! 🤩 Best A500 Keyboard 👍🏻

    • @mark12358
      @mark12358 ปีที่แล้ว +2

      It's an excellent keyboard really. I would suggest to take apart the keys in a very gently way, tilting (very GENTLY) the keycaps from left/right, so the switch stay in place and the keycap come out. You would also accurately clean the metal frame, as it would even start to rust if not cared of properly. I've four of those keyboard (3 A500/1 A2000), and I learned a lot "on the job".

  • @mark12358
    @mark12358 ปีที่แล้ว +2

    Very early Amiga 500 (1987) could have both the embossed logo case or not. If you check the manual, or the magazines issued in those days, you'll see.

    • @Carlos-w4w7q
      @Carlos-w4w7q หลายเดือนก่อน +1

      Correct! I own a number of 500's and other models, THE boxed 500 space invader k/b 1.2 KS version has matching SERIAL numbers on box & Amiga, B52 on decal

  • @force4200
    @force4200 ปีที่แล้ว +1

    Love your channel and commodore took what they had when they build the computers back in the day 😊 can explain odd keyboard with case.
    Have a nice day 😊

    • @TheRetroChannel
      @TheRetroChannel  ปีที่แล้ว +2

      Thanks. It's possible Commodore paired a later A500 with an earlier keyboard. Apparently the early keyboards are made with a different type of plastic which doesn't yellow

    • @force4200
      @force4200 ปีที่แล้ว +1

      @@TheRetroChannel Yes and yours is verry yellow. Will you hydroporixide it ? I do it often when its sun out. Keys and smaller stuff i do in oven 50 celsius here in Sweden.

    • @mark12358
      @mark12358 ปีที่แล้ว +1

      @@TheRetroChannel it's PBT plastic. It will never get yellow. Even early A2000 CR had those excellent keyboard (red power/red CAPS LOCK). Instead, the german A2000 had the even more special Cherry black switches keyboard (these have the red Amiga keys). I almost got one on Ebay, but it was a furious 😅 bidding and, at last, I lost it.

  • @br33ch
    @br33ch ปีที่แล้ว

    The plastic on some cheaper sockets can flex over time causing the middle pins to be open circuit when the chip is installed. The good news is, cheap modern replacements seem to be ok. I'd recommend binning the PLC puller, that type are particularly bad - when they go wrong they mangle pins, crack sockets and scratch chips. You can make a simple jig to press 2x appropriately sized bolts through the back of the socket to pop the chip out. Be sure to only press down on the Agnus socket.

  • @nickolasgaspar9660
    @nickolasgaspar9660 ปีที่แล้ว +1

    Those old PLCC sockets have issues. I usually use a pin and pull out all their pins one by one to increase their pressing force.

  • @RandomBitzzz
    @RandomBitzzz ปีที่แล้ว +1

    Those springs look like the ones used in ballpoint pens. Might a pen spring worked in the event that you couldn't find the escapee?

    • @TheRetroChannel
      @TheRetroChannel  ปีที่แล้ว

      Possibly, it might fit but would likely have a different feel

    • @RandomBitzzz
      @RandomBitzzz ปีที่แล้ว +1

      @@TheRetroChannel True. Might have had to swap it with a lesser used key, like one of the function keys.

  • @MoreFunMakingIt
    @MoreFunMakingIt ปีที่แล้ว

    Think that spring just landed next to me.

    • @TheRetroChannel
      @TheRetroChannel  ปีที่แล้ว +1

      Sweet, can you also have a look around for that 470ohm 0603 resistor that I dropped yesterday?

  • @fu1r4
    @fu1r4 ปีที่แล้ว +1

    I wonder why I never see Amiga 500 Plus ...
    Update: It seems that they was release late 1991 and spring 1992 Commodore released the Amiga 600 instead. So, they are quite rare. Sad i threw mine in the trash 2004 😢

    • @mark12358
      @mark12358 ปีที่แล้ว +1

      OMG! 😬😞

  • @larsenmats
    @larsenmats ปีที่แล้ว +1

    I have the same Rev.5 motherboard A500 with the same chicken lips keyboard but the embossed logo instead of the badge. Warranty seal was intact when I got it. Agnus socket had the same retaining clip and also had problems. I tried cleaning it but it never was completely reliable. The problem would come back after storing it for a few weeks/months so I had to change the socket in the end.

  • @nickolasgaspar9660
    @nickolasgaspar9660 ปีที่แล้ว

    I have the same space invaders keyboard but I've never managed to remove the white plunger along the key-caps! Really strange. The good thing with these keyboards is that the keys do not turn yellow!

    • @TheRetroChannel
      @TheRetroChannel  ปีที่แล้ว +1

      I think my keycap puller got really far in under the key, so it had a good grip on the plunger. Turned out to be a good thing though as it made cleaning the contacts much easier

  • @donaldblakley6796
    @donaldblakley6796 ปีที่แล้ว +1

    Nice work bud 👍

    • @donaldblakley6796
      @donaldblakley6796 ปีที่แล้ว

      I loved the tap tap tappa roo. Happy Gilmore. Lol. I'm not sure if you remember my 64C shortboard issue that showed black screen without a cartridge and diag with harness passed several times times, I finally got it! The cartridge port was shortening out! It freaking works 😂 idk how I missed that, but still learning I guess. You're help was much appreciated before:) keep up the professional work. Love your channel

  • @mark12358
    @mark12358 ปีที่แล้ว +1

    1:48 11:51 you are supposed to FIX those A500, not to kill some CIAs when plugging a mouse without turning off the power BEFORE. OMG, these are basics info.

    • @ville_syrjala
      @ville_syrjala ปีที่แล้ว +1

      Never seen anyone turn off their Amiga in order to plug in a joystick or mouse. You're pretty much forced to do it live when playing some two player joystick game but have to first click some icon with the mouse. The alternative is to wiggle the mouse cursor into the right spot with the joystick, which as far as your joystick hand is concerned that's like playing a full round of some sports/sex game before the actual game even starts. Of course these days one can get a mousejoystick switcher but those were definitely not common back in the day.

    • @mark12358
      @mark12358 ปีที่แล้ว +1

      @@ville_syrjala it's clearly stated on the instruction manual. It was also recommended by tech magazines. I know that most of the users did that with the machine powered on. I did it too sometimes, when a game was already started. You wanna do it with the utmost care, if your mouse/joy connector has a metal ring. You risk to short pins on the port.

    • @TheRetroChannel
      @TheRetroChannel  ปีที่แล้ว

      You would need to try really hard to kill a CIA in an A500 from the joystick ports. The direction pins are multiplexed by a 74LS157 and then handled by Denise. The POT inputs are handled by Paula, and only the fire button is connected to the CIA. Maybe if you managed to short the pins and were very unlucky. Could also be possible to do it with static but me, the bench and bench tops are all grounded.

    • @mark12358
      @mark12358 ปีที่แล้ว +2

      @@TheRetroChannel the A500/A2000 are missing some filtering/protection components for the joy/mouse port, like the A1000 had. And C64, too. I reported what the manual recommend. It could be difficult, but a shorting pin is still possible. 😁

  • @captainnostromo
    @captainnostromo 10 หลายเดือนก่อน

    Oh my god, you splitting the keyswitchs apart. The white part is the top part of the Keyswitch itself. You used the wrong keypuller. 😢

  • @shangrilai1990
    @shangrilai1990 ปีที่แล้ว +1

    🍪

  • @BlackGymkhana
    @BlackGymkhana ปีที่แล้ว

    That hitek keyboard never yellows... That keyboard matches that case since it has kickstart 1.2. Then commodore replaced keyboard supply with Samsung (cheaper membrane type).