25 February 2021, 18:38 | #1 |
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Why a PAL (German) A500 Keyboard does not type
Hello all,
A While back I bought this PAL A500 from eBay: https://www.ebay.com/itm/Extremely-R...72.m2749.l2649 But when I type on German specific keys, I only see the NTSC equivalent characters being typed on the screen. 1) How is this possible? 2) Strangely enough, when I press (Ä) and (^#)keys (see the screenshots) nothing is displayed. I even removed the keycaps to see if there is a connection issue or debris blocking the shorting mechanism, but everything seem to be in working order. |
25 February 2021, 19:45 | #2 |
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Did you choose the correct language in Input preferences?
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25 February 2021, 21:26 | #3 |
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1) keymaps are in software, totally separate from what is written on the keys
2) the key switches may be tarnished for these two keys. this looks like an NMB keyboard. you can gently prise off the keycap from the corner and stick a piece of paper between the contacts and move it around a bit to clean off any gunk. the keycap is a thin shell on top of a white plunger, try not to pull out the white plunger at the same time as the keycap, as it is easy to bend and ruin the contacts when reinstalling the plunger. sometimes the keys start typing again by tapping them repeatedly. if your keyboard is instead a mitsumi, you will need to take it apart and clean any dust from the inside. |
25 February 2021, 21:33 | #4 |
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My guess is that the keyboard membrane is broken. You can try to repair the traces with something like electrical paint but a new membrane is probably the easiest option. A new membrane is usually something like 30€.
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25 February 2021, 21:51 | #5 |
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Like Jope said. The amiga defaults to US keyboard by default which is great for US,NZ,CAN,AUS.
You have to set the keyboard to german using c:setmap on the workbench disk. |
26 February 2021, 02:44 | #6 |
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Thank you for your informative responses, I really appreciate them all. Well, looks like no matter what I do, those two keys are not going to work, so unfortunately I am going to leave them like that for now.
I know it is a bummer, since this system is truly unique in a sense that has the Rev 3.0 motherboard, C= keyboard, etc. I primarily use this particular A500 for watching demos and play games, and unless I am using the system for typing or editing, I won't be needing those two keys, right? I mean I can always use the duplicate keys found somewhere else on the keyboard I guess. Last edited by c0dehunter; 26 February 2021 at 03:23. |
26 February 2021, 07:18 | #7 |
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The ä key should print ' and " (when shifted) with a usa keymap.
Did you try to clean the contacts in the keyswitch? I have many of these keyboards and if they sit for a few years, some keys will stop typing. Cleaning the brass contacts is how to get them alive again, no need to remove anything more than the keycap, the contacts are accessible from the hole in the space invader plunger underneath. The keymap that matches the german layout is "d". |
26 February 2021, 09:17 | #8 |
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26 February 2021, 09:25 | #9 | |
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Quote:
Thanks for the info: Yes, I removed the cap on the (^#) key, and cleaned it, but it still does not work. For the (Ä) key, the cap and the space invader switch came off, and it broke of a bit of the left copper clamp (it looks like a tiny hand with tiny fingers, which clasps the right clamp). The left and right clamps could not reach other in order to create a short, but I pushed them together (bent them) so I can visually confirm they they can clasp, but still no characters in produced with I press the (Ä) key. Last edited by c0dehunter; 09 March 2021 at 21:46. |
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26 February 2021, 09:37 | #10 |
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What happens if you press the 'ö' key? Does it type a semi-colon?
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26 February 2021, 16:41 | #11 | ||
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Quote:
Quote:
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26 February 2021, 19:50 | #12 |
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Gunk (sweat from fingers and spills from beverages) find its way to the membrane. I know this because I just cleaned two keyboards inside
You should do this every 10 years (or every time you spill lemonade on the keyboard ). But keymap problems are keymap problems. If it's only the language-specific keys, it's easily fixed by "SetMap de" on the commandline (or the corresponding action in your Workbench version). |
27 February 2021, 01:54 | #13 | ||
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Quote:
Quote:
Now that you mentioned it, when I connect my spare chicken-lips (C=) German keyboard, the (^#), also it does not do anything! so I guess it means that this key (^#) is in working order then! I still don't know how to load the German Keymap under Workbench! You guys are awesome, I really appreciate the encouragement! Last edited by c0dehunter; 27 February 2021 at 04:52. |
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27 February 2021, 10:34 | #14 |
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27 February 2021, 14:42 | #15 |
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the keyboard of a500 has a membrane, type A and type B, if are switched 2 key don't work
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01 March 2021, 09:39 | #16 |
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AFAIK the keyboard in this topic doesn't have a membrane, it's the mechanical variant https://www.triflex.dk/2019/11/22/st...lips-keyboard/
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01 March 2021, 10:20 | #17 | |
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Quote:
Now say setmap d in a cli/shell and you will have the German keymap. |
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03 March 2021, 17:09 | #18 |
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Thanks for the instructions: Say when I removed this WB disk, and reset A500, it would revert back to the default US Keymap then, right?
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04 March 2021, 02:43 | #19 |
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Right
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19 March 2021, 10:54 | #20 |
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OK, thanks to all your help, I was able to find a German Workbench disk (DE).
The key (^#) works with no issue. The key (Ö) works as well. The (Ä) is the only key that does not type anything at all. If I am NOT able to fix this key, and if it is disabled permanently, would I really run into any issues if this? I mean I am not using any word processing, or use this A500 for office use that I would need anything typed on it. I use this A500 for just games and demos. I appreciate your insights in advance! Last edited by c0dehunter; 19 March 2021 at 11:18. |
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