Commodore Amiga Mitsumi Keyboard Membrane Repair

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A quick look at an Amiga keyboard membrane that has seen better days! By the end of the video it is 100% working though!
#commodore #amiga #repair

Пікірлер: 91

  • @dick_tm
    @dick_tm5 жыл бұрын

    Question: why didn't you run wire from the pad directly to the connector instead of from the pad to the membrane?

  • @GadgetUK164

    @GadgetUK164

    5 жыл бұрын

    The copper tape has a good adhesive on the back, so it stays stuck down really well. If you were to try and use the conductive ink to secure a wire, it will break off very easily with any movement. The conductive ink does not set hard, it sets soft - like silicone almost, but it is conductive.

  • @LeftoverBeefcake
    @LeftoverBeefcake5 жыл бұрын

    I use Maybelline lip gloss on my floppy drive. It doesn't make it work any better, but it certainly looks better and stops it from being jealous of the younger and more prettier floppy drives.

  • @Dizzy_Hites
    @Dizzy_Hites5 жыл бұрын

    Hold on, a sub 25 minute video from GadgetUK164, I must be in a parallel universe! ;-)

  • @GadgetUK164

    @GadgetUK164

    5 жыл бұрын

    LOL!

  • @benedictnothing
    @benedictnothing5 жыл бұрын

    Blue Peter's still going, apparently! Started in 1958. Blimey.

  • @GadgetUK164

    @GadgetUK164

    5 жыл бұрын

    Wow! I am shocked lol!

  • @ChrisFredriksson
    @ChrisFredriksson5 жыл бұрын

    The "mystery" key or ?? key is in at least Sweden the key for asterisk/* and ' The left bracket key is Å, the right bracket key is ^¨~ and beside L is Ö and Ä. Just fun fact :) Thanks for the great video!

  • @GadgetUK164

    @GadgetUK164

    5 жыл бұрын

    Thanks =D I did wonder what those keys were for!

  • @ChrisFredriksson

    @ChrisFredriksson

    5 жыл бұрын

    Well I'm happy I finally could answer someones question :) Always someone before you, that one time you know the answer ;)

  • @LucaBlightOfHighland
    @LucaBlightOfHighland5 жыл бұрын

    Another great vid from the retrogaming repair master.

  • @georgelea4297
    @georgelea42975 жыл бұрын

    Thanks Chris for another brilliant video

  • @analognexus
    @analognexus5 жыл бұрын

    Wow, extraordinary membrane repair! Great work. I've repaired 3 membranes myself with conducting silver, but, this is great only for straight tracees. What you've done is extraordinary work as you've done with the A500plus repair. Well done.

  • @GadgetUK164

    @GadgetUK164

    5 жыл бұрын

    Thanks =D

  • @Four_X
    @Four_X5 жыл бұрын

    Top video Chris, I always have copper tape and aluminium tape at hand it's very versatile and can be used for many different things. I also think sellers are charging way too much for new keyboard membranes, I agree £25 for a new Amiga 500 keyboard membrane is way over priced, I find it hard to believe those Amiga 500 keyboard membranes cost any more than £5 to manufacture in the first place.

  • @HeyBirt

    @HeyBirt

    5 жыл бұрын

    Getting the tooling done for a membrane is several hundred dollars and unless you are getting many thousand made at a time it will cost much more than $5/each to have them made and that does not include tooling costs. Be thankful some folks are willing to invent a few thousand dollars up front to get membranes made and then sell you one for $25.

  • @Plan-C
    @Plan-C5 жыл бұрын

    "Blue Peter" LMFAO. Don't forget the double-sided sticky tape! Looks like that was a bit of a mission. Had exactly the same thing with that silver paint. Was about 2 years old though so I was probably being a cheapskate lol. Good stuff.

  • @GadgetUK164

    @GadgetUK164

    5 жыл бұрын

    Hehe =D The paint I bought doesn't seem to have lasted well in the pen! Something like 12 months after I bought it the ball stopped shaking and it thickend up. I've just bought some different stuff that I might get chance to try on something else soon.

  • @Archimedes75009
    @Archimedes750095 жыл бұрын

    When I watch that I love even more my BBCA3000 keytronic keyboard. Top notch.

  • @spidermcgavenport8767
    @spidermcgavenport87675 жыл бұрын

    Thank you GadgetUK164, much appreciated preservation of this Amiga keyboard, those membrane contracts are touchy.

  • @spidermcgavenport8767

    @spidermcgavenport8767

    5 жыл бұрын

    Would a solution for those contact pads exist like a conductive paste on each pad?

  • @spidermcgavenport8767

    @spidermcgavenport8767

    5 жыл бұрын

    Using nail polish on both back and front of those flat copper traces could help in numerous ways.

  • @GadgetUK164

    @GadgetUK164

    5 жыл бұрын

    Yes, you can get conductive paint for those pads too!

  • @Crashedfiesta
    @Crashedfiesta5 жыл бұрын

    I'll be adding a roll of copper tape to my supplies. My A500+ has a Samsung keyboard where the membranes aren't reproduced by anyone so this repair method may come in handy in future! 😎👍

  • @005AGIMA

    @005AGIMA

    4 жыл бұрын

    Wow the Samsung Keyboard was a very very early Keyboard (I have one also) so I'm surprised you had one in a 500+ Was it your original machine or did you buy it second hand?

  • @Crashedfiesta

    @Crashedfiesta

    4 жыл бұрын

    @@005AGIMA Yeah, the samsung keyboard in my A500+ isn't original. The whole machine is made up of parts I acquired over the years, including a repaired varta damaged motherboard. The case came from an old Rev6 machine where the owner had painted it in thick red gloss paint which I spent days scraping off. 😁🤣

  • @Veksta
    @Veksta3 жыл бұрын

    I used an old set of probes, cut the points off just after the "ball" bit and cleaned it up with some p240 then p600 for testing carbon contacts on membrane. Works a treat and less risk of damage

  • @Mymatevince
    @Mymatevince5 жыл бұрын

    Nice vid Chris. Full of useful tips👍

  • @GadgetUK164

    @GadgetUK164

    5 жыл бұрын

    Thanks! Not one of my better videos - I was in too much of a rush to get it working! I really should have shown close ups of where the damage was and the work I did. I will perhaps show some close ups in another video when I can revisit it.

  • @Mymatevince

    @Mymatevince

    5 жыл бұрын

    @@GadgetUK164 It was nice to see the slug tape in use. I got some after you told me about it probably about a year ago, but I have never used it. Your method here would have worked for the touchpad on the failed fix MB Microvision as that was worn😁 Really useful idea on the conductive paint coupled with the copper tape. Good job Chris👍

  • @zxkim8136
    @zxkim81365 жыл бұрын

    And here's one you did earlier (blue Peter pun) you have the patience of a saint I would have bought the new membrane Chris .....great repair mate 😁😁 Kim 😁😁

  • @GadgetUK164

    @GadgetUK164

    5 жыл бұрын

    Didn't want to spend £30 on a £25 keyboard lol!

  • @HeyBirt
    @HeyBirt5 жыл бұрын

    I used denatured alcohol at first and that was a bad idea, had green coming off on rag. I quickly switched to just a mild soap. Luckily I did not ruin it. Makes me wonder what these are made of.

  • @GadgetUK164

    @GadgetUK164

    5 жыл бұрын

    As you say - just with very very diluted (like < 5%) washing up liquid a green coating was wiping off too! It's the covering over the traces that seems very easy to remove.

  • @Godzilla_Jesus
    @Godzilla_Jesus4 жыл бұрын

    You can use lip gloss in a pinch to lubricate floppy drive rails. I don't recommend it, but lip gloss is petrol based and will actually work like a grease. Because that's what it is, colored grease :)

  • @bikerdave1274
    @bikerdave12745 жыл бұрын

    The lippy 💋 prolly will be a decent nuff substitute for moly grease on floppy drive cage mechs 🤔

  • @AdamSommer70
    @AdamSommer705 жыл бұрын

    Need me some copper tape! Nice repair!

  • @johnwiesen4440
    @johnwiesen44404 жыл бұрын

    I got my self a new keybord membrane it dose my A 500 and A 1200. It a Hard Keyboard Membrane. It has got copper contacts, but it is not cheap, but it should last a long time.

  • @GadgetUK164

    @GadgetUK164

    4 жыл бұрын

    That's definitely an improvement over these awful membranes!

  • @CRG
    @CRG5 жыл бұрын

    I use a scalpel to remove the cover on flexible ribbons etc. Very gently drag the scalpel across the surface pulling backwards so not cutting but dragging (if that makes sense). Need to be really really careful though as any slip and the knife is straight through it. BTW that copper tape is great stuff. I seen retro man cave use it on the bottom of the gbs8200 scaler to reduce the artifacting on the output. If not tried that myself yet but might be worth a look. Never crossed my mind to use it for repairing stuff as you did so will have to keep that one up my sleeve for the future. Great video, thanks.

  • @GadgetUK164

    @GadgetUK164

    5 жыл бұрын

    Regards copper tape - yes, RetroManCave used copper tape on his GBS8200 after he saw me use it on mine, and I used it prior to that on a Famcom to NES adapter. He's naughty like that!

  • @CRG

    @CRG

    5 жыл бұрын

    @@GadgetUK164 I knew I'd see it somewhere else before and should of known it would be you haha.

  • @GadgetUK164

    @GadgetUK164

    5 жыл бұрын

    Hehe =D A growing number of people keep approaching me pointing out similar things too. My approach is share where you learned something - no other channel should be considered a threat, knowledge is power, but not everybody thinks that way unfortunately!

  • @CRG

    @CRG

    5 жыл бұрын

    @@GadgetUK164 Could not agree more. If you're going to use a method you seen someone else do first then fine but just credit the original person. A simple mention of a name during a video is all it takes. Some out there would see that as a threat which to be honest I don't really understand as all that can really so is make a viewer go find the original content producer which only grows the community.

  • @tarstarkusz
    @tarstarkusz5 жыл бұрын

    I really don't see why this wouldn't last another 30 years! Maybe in a few decades that glue will come loose, but that is really the only thing that could go wrong. If there was going to be interference issues or crosstalk or something, it would have happened right away.

  • @vindosa
    @vindosa5 жыл бұрын

    Replacement keyboard membranes are available from various retro computer stores.

  • @vindosa

    @vindosa

    5 жыл бұрын

    @rezargamer They are about 30 UK pounds at the time of this video. I wouldn't be surprised if the problem comes back somewhere else on the old membrane.

  • @GadgetUK164

    @GadgetUK164

    5 жыл бұрын

    Yes, last ones I saw were £25 plus shipping! - I paid £25 for the keyboard already lol.

  • @GadgetUK164

    @GadgetUK164

    5 жыл бұрын

    Maybe in 20 years, but not in the next few for sure. I've fixed these before and never had to revisit them. The 65XE was done 2 years ago the same way and has been used a lot and works perfectly.

  • @plumbc007

    @plumbc007

    2 жыл бұрын

    @@GadgetUK164 wowb chris,, in 2 years thanks to a cough n sneeze lol there 50 now and had to bite the bullet and buy 1 for my 500... the 500+ though is getting repaired with said tape lol

  • @tedvanmatje
    @tedvanmatje5 жыл бұрын

    Mate, I have to comment on the subject of using makeup (again,lol). The advantage of having a wife and two teenage daughters is that they leave their make up all over the bloody house - which is quite convenient and they rarely, if ever, notice that it's gone walkies. If it's nail varnish remover, cotton buds and pads, soft brushes, nail varnish or that white fine tipped pen (absolutely have no idea what they use that for...) it's whisked off to narnia (aka my workshop) never to be seen again. I'm a bit of a magpie and suffer from shiny kit syndrome it seems. You might make use of some veet hair remover....gets rid of pubes quicker than a welding torch apparently. ;) Great vid man.....looking forward to the your upcoming A2000 and no doubtedly, you'll have yours done before I finish mine! Be well and until the next one :)

  • @GadgetUK164

    @GadgetUK164

    5 жыл бұрын

    LOL @ narnia =D Thanks mate! Post a link to any info on your repair (forum thread / blog etc etc).

  • @josephneale10215
    @josephneale102155 жыл бұрын

    ❤️👍

  • @danielson9579
    @danielson95795 жыл бұрын

    Lip gloss to fix a you are hilarious lol 😂

  • @snuffsound451
    @snuffsound4513 жыл бұрын

    Is there a way to test if all the keys are working, if you dont have a diagnostic program?

  • @GadgetUK164

    @GadgetUK164

    3 жыл бұрын

    Not really - perhaps boot from Workbench and get a Shell up, test each key that way? Sys Check is free to download, just write it to a disk are you're away!

  • @8bitwidgets
    @8bitwidgets2 жыл бұрын

    does this apply to an A2000 later era keyboard? I'm curious if the A500 membrane works in the A2000 keyboard. I'm thinking worst case scenario of an A2000 keyboard had contacts that need more than simple cleaning.. like if maybe something dissolved some traces and where replacing would be needed. I can't find "A2000" membrane replacements.. but I have seen them for A500 and A1200 and A600..

  • @GadgetUK164

    @GadgetUK164

    2 жыл бұрын

    Honestly not sure - I would assume they may have used the same membranes in some of them?!?

  • @8bitwidgets

    @8bitwidgets

    2 жыл бұрын

    @@GadgetUK164 yea i know they made a few iterations. early was mechanical i believe and then later they went to membrane.

  • @rindwagon8859
    @rindwagon88593 жыл бұрын

    Does a broken trace cause your caps lock to flash once on boot up??? I've got about 5 or 6 keys that don't work.

  • @GadgetUK164

    @GadgetUK164

    3 жыл бұрын

    It's more likely to be a bad solder point on the keyboard MCU (The large 40 pin DIP chip on the keyboard PCB). Or in many cases the chip needs swapping. Membrane issues will cause keys to not work, but they cannot cause the LED to flash (unless perhaps its covered in liquid).

  • @rindwagon8859

    @rindwagon8859

    3 жыл бұрын

    @@GadgetUK164 Thanks for the reply, when I looked at the membrane it did have some sort of sticky stuff on it but I cleaned it. I think your deffo right as I cant find any broken tracks anywhere. Checked the conductive pads aswell so there okay. Its just the 1,q,a,z and the 3,e,d,c keys that don't work, I cant fully check as I don't have a copy of amiga test kit.

  • @tarstarkusz
    @tarstarkusz5 жыл бұрын

    What is a plumbpot? I can't quite make out the word and google turns up nothing. I'd like to get some of that copper tape.

  • @GadgetUK164

    @GadgetUK164

    5 жыл бұрын

    Plant Pot! - www.ebay.co.uk/itm/30M-Adhesive-Conductive-Copper-Slug-Roll-Tape-Repellent-Guitar-Pickup-shield/392265716270?var=661222820042&hash=item5b54dbd22e:m:mfJ-LB_IEHfdE0m-q4pE6TQ

  • @tarstarkusz

    @tarstarkusz

    5 жыл бұрын

    Thanks dude.

  • @pipschannel1222
    @pipschannel12223 жыл бұрын

    Some excellent mcGyver stuff happening here 👍

  • @GadgetUK164

    @GadgetUK164

    3 жыл бұрын

    Haha =D

  • @gianluigidoria4763
    @gianluigidoria47634 жыл бұрын

    Where can i find the Logica Diagnostic Software?

  • @GadgetUK164

    @GadgetUK164

    4 жыл бұрын

    It's part of the Amiga Forever collection - you would need to decrypt too. www.amigaforever.com/

  • @gianluigidoria4763

    @gianluigidoria4763

    4 жыл бұрын

    @@GadgetUK164 But is it downloadable?

  • @TwinbeeUK
    @TwinbeeUK Жыл бұрын

    What's the tune from 2 to 7 seconds in?

  • @GadgetUK164

    @GadgetUK164

    Жыл бұрын

    No Second Prize!

  • @TwinbeeUK

    @TwinbeeUK

    Жыл бұрын

    @@GadgetUK164 Hang on, that's from 8 to 15s. I meant the bit before that ;)

  • @JohnGotts
    @JohnGotts5 жыл бұрын

    The wife's toothbrush, nail polish, and makeup brush are critical repair tools.

  • @GadgetUK164

    @GadgetUK164

    5 жыл бұрын

    :o)

  • @robbiew73
    @robbiew735 жыл бұрын

    Oh and as for slugs on plantpots.. just spray the pots with WD40.. they can't get up them then.. ;)

  • @GadgetUK164

    @GadgetUK164

    5 жыл бұрын

    Hehe =D

  • @st.alexiev625
    @st.alexiev6252 жыл бұрын

    hahah , mr shaky pen

  • @005AGIMA
    @005AGIMA4 жыл бұрын

    Wish I'd watched this video before I munted my Samsung A500 Keyboard :( Ended up trying to snip the ribbon to get a better connection and....you can guess what I ended up doing :(

  • @GadgetUK164

    @GadgetUK164

    4 жыл бұрын

    =(

  • @bunnykrusher
    @bunnykrusher5 жыл бұрын

    Blue Peter = MacGyver

  • @StRoRo

    @StRoRo

    5 жыл бұрын

    but not fictional lol ;)

  • @GadgetUK164

    @GadgetUK164

    5 жыл бұрын

    I dunno, if you believe in the virtual world reality thing - maybe I am fictional!

  • @robbiew73
    @robbiew735 жыл бұрын

    Not loving these ad breaks! they're ruining the flow! However, have you ever tried using conductive ink pens to repair traces?

  • @GadgetUK164

    @GadgetUK164

    5 жыл бұрын

    I used a conductive ink pen to repair all the traces in this video?!?!

  • @robbiew73

    @robbiew73

    5 жыл бұрын

    @@GadgetUK164 - did you? instead of using the copper tape and wire, can't you use a conductive ink pen over the broken / corroded traces to repair instead? I've seen it done in other videos to repair PCBs, so wondering if the silver or gold coductive pens could be of any use.

  • @GadgetUK164

    @GadgetUK164

    5 жыл бұрын

    I used conductive ink to join the copper tape. I could have just used conductive ink (and I have done that in the past, where the break is say a few millimetres in length), but in these cases the breaks (dark trace areas) were very long and at the point where most keys were broken on the left side of the keyboard it would have been near impossible to paint 5 or 6 traces right next to each other for such a long distance.

  • @StRoRo
    @StRoRo5 жыл бұрын

    Are you an Maddi the same person? Nail polish, makeup brushes if you start drinking black tea in a small glass it will be confirmed

  • @GadgetUK164

    @GadgetUK164

    5 жыл бұрын

    Haha =D

  • @danielson9579
    @danielson95795 жыл бұрын

    What! No pubes 😳 lol 😊

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