Battery Damage?

Brakus · 19 March 2009, 00:58

Hi ,

I received this week a 4000D which I bought from a seller in Germany, the seller said that battery needed to be removed but clock was working...

I switched it on to make sure it all worked and had a look at the time setting requester and noticed that the 'Save' button was operational...
Next day I switched it on (couldn't resist) to check something and then had another look at the time setting requester and Save button was no longer operational...

I opened it up to remove the battery, to my delight the motherboard looks as if it just rolled off the production line, pristine condition except for a tiny bit of discoloration near the battery...
I removed the battery and found it had indeed started to leak...
I've cleaned the area under the battery and surrounds up with isopropyl and still can't see any damage anywhere..

My question is, if the 'save' button in the time requester is greyed out, does it automatically mean the RTC circuit is gone ?

I

rkauer · 19 March 2009, 02:32

RTC bit the dust.

clenched · 19 March 2009, 02:39

Try setclock reset from CLI before giving up.

Supamax · 19 March 2009, 02:55

Quote:

Originally Posted by clenched

Try setclock reset from CLI before giving up.

Is this also valid for A500 with WB 1.2/1.3 ?
I'm asking because I have an A500 with internal Hardital 2 (2 MB RAM trapdoor expansion, with clock & battery), and I was never able to get the clock work

.

clenched · 19 March 2009, 03:23

Yes. I just passed it on in the hope it would restart 4000 too. When my 500 lay dormant for years and I started it, the clock would show <unset> <unset> <unset> but when I issue this command , it would restart. I believe to 1978. Since it uses cordless phone batteries , it needs to be run or else the batteries die.

Brakus · 19 March 2009, 05:43

Thanks for the quick replies guys, I'lll give the setclock reset command a go when I get home from work tonight

*edit*
Bugger... "Battery clock not found"

TheCorfiot · 19 March 2009, 11:25

@Brakus

The RTC circuit has an issue my friend.
I have an A4000D with the same issue & have currently ordered new parts to repair it my self.

http://amiga.serveftp.net/RTCrepair.html

The above link is a very in depth and concise diagnostic procedure which should identify If any tracks or pin holes have been damaged.

The Latch IC does fail quite easily If exposed to corrosion.

I cannot recomend Mr Hoffman enough he is a very helpful & genuine guy & his costings are very fair, and he is quite local to you too (NZ)

Good Luck
TC

Brakus · 19 March 2009, 12:42

@TheCorfiot

I'm afraid the RTC indeed has an issue...

I've just given the latch a better inspection and I've cleaned some green off the legs, also removed the simms just in case... Some hidden damage under there too...

Thanks for the tip re Anthony, I'll e-mail him and see what he says

At the very least by the end of it this 4000 mobo will be well travelled !

TheCorfiot · 19 March 2009, 17:08

@brakus

If you have a meter run through the continuity tests, It may lead to an open track which can be easily repaired.

In my case it seems the latch has died & one of the resistors in the SIL package is reading wrong. all my tracking proved OK.

I've decided to replace the RTC chip, Latch & Resistor package in one go anyway save repetitive strip down of the system. If that don't bring it back to life then

Best of luck
TC

multivac · 25 January 2010, 19:46

Brakus

Did you get the clock working?

19 March 2009, 00:58	#1
Brakus Registered User Join Date: Feb 2008 Location: Sydney, Australia Age: 54 Posts: 100	Battery Damage? Hi , I received this week a 4000D which I bought from a seller in Germany, the seller said that battery needed to be removed but clock was working... I switched it on to make sure it all worked and had a look at the time setting requester and noticed that the 'Save' button was operational... Next day I switched it on (couldn't resist) to check something and then had another look at the time setting requester and Save button was no longer operational... I opened it up to remove the battery, to my delight the motherboard looks as if it just rolled off the production line, pristine condition except for a tiny bit of discoloration near the battery... I removed the battery and found it had indeed started to leak... I've cleaned the area under the battery and surrounds up with isopropyl and still can't see any damage anywhere.. My question is, if the 'save' button in the time requester is greyed out, does it automatically mean the RTC circuit is gone ? I

19 March 2009, 05:43	#6
Brakus Registered User Join Date: Feb 2008 Location: Sydney, Australia Age: 54 Posts: 100	Thanks for the quick replies guys, I'lll give the setclock reset command a go when I get home from work tonight edit Bugger... "Battery clock not found" Last edited by Brakus; 19 March 2009 at 10:08.

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19 March 2009, 02:32	#2
rkauer I hate potatos and shirts Join Date: Oct 2007 Location: Sao Leopoldo / Brazil Age: 58 Posts: 3,482	RTC bit the dust.

19 March 2009, 02:39	#3
clenched Registered User Join Date: Sep 2008 Location: Gainesville U.S.A. Posts: 771	Try setclock reset from CLI before giving up.

19 March 2009, 03:23	#5
clenched Registered User Join Date: Sep 2008 Location: Gainesville U.S.A. Posts: 771	Yes. I just passed it on in the hope it would restart 4000 too. When my 500 lay dormant for years and I started it, the clock would show <unset> <unset> <unset> but when I issue this command , it would restart. I believe to 1978. Since it uses cordless phone batteries , it needs to be run or else the batteries die.

19 March 2009, 11:25	#7
TheCorfiot Amibay Senior Staff Join Date: Feb 2008 Location: Cardiff / Wales Posts: 1,302	@Brakus The RTC circuit has an issue my friend. I have an A4000D with the same issue & have currently ordered new parts to repair it my self. http://amiga.serveftp.net/RTCrepair.html The above link is a very in depth and concise diagnostic procedure which should identify If any tracks or pin holes have been damaged. The Latch IC does fail quite easily If exposed to corrosion. I cannot recomend Mr Hoffman enough he is a very helpful & genuine guy & his costings are very fair, and he is quite local to you too (NZ) Good Luck TC

19 March 2009, 12:42	#8
Brakus Registered User Join Date: Feb 2008 Location: Sydney, Australia Age: 54 Posts: 100	@TheCorfiot I'm afraid the RTC indeed has an issue... I've just given the latch a better inspection and I've cleaned some green off the legs, also removed the simms just in case... Some hidden damage under there too... Thanks for the tip re Anthony, I'll e-mail him and see what he says At the very least by the end of it this 4000 mobo will be well travelled !

19 March 2009, 17:08	#9
TheCorfiot Amibay Senior Staff Join Date: Feb 2008 Location: Cardiff / Wales Posts: 1,302	@brakus If you have a meter run through the continuity tests, It may lead to an open track which can be easily repaired. In my case it seems the latch has died & one of the resistors in the SIL package is reading wrong. all my tracking proved OK. I've decided to replace the RTC chip, Latch & Resistor package in one go anyway save repetitive strip down of the system. If that don't bring it back to life then Best of luck TC

25 January 2010, 19:46	#10
multivac Registered User Join Date: Jul 2008 Location: Enfield Posts: 27	Brakus Did you get the clock working?

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