A4000 and blinking CAPS-LOCK (also dead kb)

keropi · 22 January 2008, 19:52

Hiya, a friend here has an A4000D with the original 040/25 card... the amiga works fine, boots, plays games, mouse is OK , joystic is OK.
but all keyboards when connected don't work, expect the CAPS LOCK key blinks... is this a known cause of these prob?
thanks!

Jope · 22 January 2008, 20:23

Maybe check that the kbd gets enough volts.

How many blinks is it? Just a single blink that goes on and on?

keropi · 22 January 2008, 23:50

dunno, haven't seen the blinks yet... what I understood is that they go on and on...
thought I aksed in case it was a more common failure...

Jope · 23 January 2008, 10:43

The reason I asked was because it might be a pattern:

http://www.wonkity.com/~wblock/a4000hard/kbtest.html

It strikes me as a little odd that every keyboard you try exhibits the blinking.

Power down the computer and check for shorts between DAT and CLK on the keyboard connector. There will be some conductivity between them, but if it's an outright short, that needs to be checked. Probably a bad CIA in that case.

22 January 2008, 19:52	#1
keropi . Join Date: Oct 2004 Location: Ioannina/Greece Posts: 5,040	A4000 and blinking CAPS-LOCK (also dead kb) Hiya, a friend here has an A4000D with the original 040/25 card... the amiga works fine, boots, plays games, mouse is OK , joystic is OK. but all keyboards when connected don't work, expect the CAPS LOCK key blinks... is this a known cause of these prob? thanks!

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22 January 2008, 20:23	#2
Jope - Join Date: Jul 2003 Location: Helsinki / Finland Age: 43 Posts: 9,874	Maybe check that the kbd gets enough volts. How many blinks is it? Just a single blink that goes on and on?

22 January 2008, 23:50	#3
keropi . Join Date: Oct 2004 Location: Ioannina/Greece Posts: 5,040	dunno, haven't seen the blinks yet... what I understood is that they go on and on... thought I aksed in case it was a more common failure...

23 January 2008, 10:43	#4
Jope - Join Date: Jul 2003 Location: Helsinki / Finland Age: 43 Posts: 9,874	The reason I asked was because it might be a pattern: http://www.wonkity.com/~wblock/a4000hard/kbtest.html It strikes me as a little odd that every keyboard you try exhibits the blinking. Power down the computer and check for shorts between DAT and CLK on the keyboard connector. There will be some conductivity between them, but if it's an outright short, that needs to be checked. Probably a bad CIA in that case.

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