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Amiga computer related discussion => Amiga Hardware Issues and discussion => Topic started by: Skippy on October 31, 2003, 08:09:39 PM

Title: a500 'soft reset'
Post by: Skippy on October 31, 2003, 08:09:39 PM

I've got an a500 [ks1.3] here that will not soft reset when pressing ctrl+amiga+amiga.

I've tried swapping out the keyboard for another, but still the same problem.

Aside from that it works perfectly well.

Any thoughts?

Skippy

PS: I also noticed the original keyboard connector has a 5th pinout, not normally present, coloured yellow. Hmmm
 

Title: Re: a500 'soft reset'
Post by: sir_inferno on October 31, 2003, 08:18:02 PM

 

Title: Re: a500 'soft reset'
Post by: Castellen on October 31, 2003, 10:20:29 PM

How good are your electronic skills? :-)

Check on pin 3 of the keyboard connector (KBreset line) which should go low when the reset combination is pressed.
If not, there is possibly a keyboard problem.
Also, if you short this line to ground, it should definately cause a system reset.

The KBreset line goes into U5 (Gary) on pin 5 I think.  Check the continuity of the circuit between U5 and the keyboard connector.

When U5 sees a reset state on the KBreset line, it initiates a system reset condition.


I think that's correct??  Though my memory may be permanently damaged after too many beers last night :-P

A500 schematics are here if you need them:
http://amiga.serveftp.net

Anthony.

Title: Re: a500 'soft reset'
Post by: Skippy on November 01, 2003, 02:20:56 AM

@sir_inferno,

You've provided no constructive nor informative support to a valid post, I find your comments very insulting and regard them as a defamation of character.

@Castellen,
I will look into this, thanks for your feedback.

@Amiga.org
I would also like to hear from the Administrators of this website with regards to the lack of moderation which allows these fools to tarnish what I consider a respectable portal of information and resources.

Skippy

Title: Re: a500 'soft reset'
Post by: RedWarrior on November 01, 2003, 05:16:56 AM

Geez what a Princess.






is that valid?

Title: Re: a500 'soft reset'
Post by: sir_inferno on November 06, 2003, 09:10:50 PM

defamation

\Def`a*ma"tion\, n. [OE. diffamacioun, F. diffamation. See Defame.] Act of injuring another's reputation by any slanderous communication, written or oral; the wrong of maliciously injuring the good name of another; slander; detraction; calumny; aspersion.

hmmmmmmmmmm, that's from dictionary.com, i don't think saying a joke comes under it?

then again, this is the kind of person who uses "summer" as a verb;

"I summer in Barbados regularly"

Title: Re: a500 'soft reset'
Post by: Cyberus on November 06, 2003, 10:26:25 PM

Perhaps Skippy is implying that what you said is a defamation of  your character? :-P

@Skippy
I'm not sure if this will help:
here (http://www.feagurth.net/Amiga/TSText.HTML)