A502/16 Clock not being detected?

quantum112 · 07 June 2009, 18:59

All this time during booting into workbench I saw the message "Battery backed up clock not found" , until I read that my A502 trapdoor RAM expansion has a battery? So how come it's not detected...the chip looks like new, no battery leak anywhere from what I can see without removing the heat-shield, there's only one jumper on it, not sure what that's for?

Thanks

hit · 07 June 2009, 19:25

do you own an A500 Plus ( http://amiga.resource.cx/photos/a500,7 )? maybe the system tries talking to A500+ clock-chip and has problems - maybe leaked battery there?

quantum112 · 07 June 2009, 19:40

I only have an A500+ case, but the motherboard is A500, rev. 6A...

quantum112 · 07 June 2009, 19:53

OK I think I have one of the craziest A500's ever. Stuff just seems to randomly work and not work here. I cleaned off the entire board, pins, area around the battery, etc., and now the clock works...

DH · 07 June 2009, 19:56

Either some pins were dirty, or there's a loose/dry connection on the board. Have a close look underneath to see if any solder joints look cracked.

quantum112 · 07 June 2009, 20:10

Nope, everything looks fine. I was kinda hoping this would fix the serial issues but, I guess that would be hoping too much.

DH · 07 June 2009, 20:18

Dirty connector then.

Nothing wrong with hoping, you never know your luck

quantum112 · 07 June 2009, 20:51

Ehh, guess I didn't do much. Sometimes it detects the clock now, and other times (most) it doesn't. I'm guessing battery gave up. Is it possible to replace the battery with a more quality one?

prowler · 07 June 2009, 20:54

Of course.

What type is it?

quantum112 · 07 June 2009, 20:59

The type that leaks.

Here's the link:
http://www.amiga-hardware.com/showha...gi?HARDID=1513

The "Version 2" one.

prowler · 07 June 2009, 21:12

Hmm... There's nothing on that link which tells what the battery type is, so you'll just have to strip it out and have a look, then find an equivalent type and fit a new one.

07 June 2009, 18:59	#1
quantum112 Registered User Join Date: Jun 2009 Location: Croatia Posts: 121	A502/16 Clock not being detected? All this time during booting into workbench I saw the message "Battery backed up clock not found" , until I read that my A502 trapdoor RAM expansion has a battery? So how come it's not detected...the chip looks like new, no battery leak anywhere from what I can see without removing the heat-shield, there's only one jumper on it, not sure what that's for? Thanks

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07 June 2009, 19:25	#2
hit Registered User Join Date: Jun 2008 Location: planet earth Posts: 1,115	do you own an A500 Plus ( http://amiga.resource.cx/photos/a500,7 )? maybe the system tries talking to A500+ clock-chip and has problems - maybe leaked battery there?

07 June 2009, 19:40	#3
quantum112 Registered User Join Date: Jun 2009 Location: Croatia Posts: 121	I only have an A500+ case, but the motherboard is A500, rev. 6A...

07 June 2009, 19:53	#4
quantum112 Registered User Join Date: Jun 2009 Location: Croatia Posts: 121	OK I think I have one of the craziest A500's ever. Stuff just seems to randomly work and not work here. I cleaned off the entire board, pins, area around the battery, etc., and now the clock works...

07 June 2009, 19:56	#5
DH Global Moderator Join Date: Sep 2008 Location: Might as well be WORK :( Age: 57 Posts: 4,110	Either some pins were dirty, or there's a loose/dry connection on the board. Have a close look underneath to see if any solder joints look cracked.

07 June 2009, 20:10	#6
quantum112 Registered User Join Date: Jun 2009 Location: Croatia Posts: 121	Nope, everything looks fine. I was kinda hoping this would fix the serial issues but, I guess that would be hoping too much.

07 June 2009, 20:18	#7
DH Global Moderator Join Date: Sep 2008 Location: Might as well be WORK :( Age: 57 Posts: 4,110	Dirty connector then. Nothing wrong with hoping, you never know your luck

07 June 2009, 20:51	#8
quantum112 Registered User Join Date: Jun 2009 Location: Croatia Posts: 121	Ehh, guess I didn't do much. Sometimes it detects the clock now, and other times (most) it doesn't. I'm guessing battery gave up. Is it possible to replace the battery with a more quality one?

07 June 2009, 20:54	#9
prowler Global Moderator Join Date: Aug 2008 Location: Sidcup, England Posts: 10,300	Of course. What type is it?

07 June 2009, 20:59	#10
quantum112 Registered User Join Date: Jun 2009 Location: Croatia Posts: 121	The type that leaks. Here's the link: http://www.amiga-hardware.com/showha...gi?HARDID=1513 The "Version 2" one.

07 June 2009, 21:12	#11
prowler Global Moderator Join Date: Aug 2008 Location: Sidcup, England Posts: 10,300	Hmm... There's nothing on that link which tells what the battery type is, so you'll just have to strip it out and have a look, then find an equivalent type and fit a new one.

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