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Pismo Clock batteries

Message #1 - Posted 2003/10/31 - JoshW

Hi All

Does anyone know a good, cheap source for a clock battery for a Pismo I picked up cheaply on eBay? Alternatively, a guide to making one myself would be nice too! Cheapest I've seen so far is £35, which seems like a rip-off to me!

I'm also possibly looking for a Power management board for a Pismo - where could I pick one of these up?

Cheers,
Josh

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Message #2 - Posted 2003/10/31 - Mike

On 31/10/03 5:35 pm, in article bnu6gn$f0r$1@sparta.btinternet.com, JoshW wrote:

Hi All

Does anyone know a good, cheap source for a clock battery for a Pismo I picked up cheaply on eBay? Alternatively, a guide to making
one myself would be nice too! Cheapest I've seen so far is £35, which seems like a rip-off to me!

I'm also possibly looking for a Power management board for a Pismo - where could I pick one of these up?

Cheers,
Josh

Are you sure you've identified the correc fault? If left for a long period w so discharging all batteries a Pismo is difficult to restart - some wo't even recharge their batteries without a bit of tinkering Mike

Message #3 - Posted 2003/10/31 - Josh Watson

Are you sure you've identified the correc fault? If left for a long

period

w so discharging all batteries a Pismo is difficult to restart - some wo't even recharge their batteries without a bit of tinkering

I'm not entirely sure - I've got one plugged in and powered on now, but nothing is happening. The main battery doesn't seem to be charging or anything. My PB5300 (my current mac) did have a similar issue, but it sorted itself out very quickly.

I d/l'ed a copy of the apple service guide - it seems to think you should disconnect all power for a few minutes and it should then work. I've heard elsewhere you should leave it plugged in and charging for 48 hours! Problem is, although I bought a bulk lot of three pismos (one of which has an I/O board component which has burnt a small hole in the bottom of the case - rest of the parts look fine). The other two look fine, so I'm hoping if I follow the service manual they'll start working :).

Any idea what kind of tinkering will get one/two going again? Would i be best buying a PRAM battery and then trying to get the 'book to charge its main battery with that in it?

I also read that if the PRAM battery is fine, any of the boards could be faulty.

Cheers,

Josh

Message #4 - Posted 2003/11/01 - Mike

On 31/10/03 10:29 pm, in article QkBob.3715$mV1.1216446@newsfep2-win.server.ntli.net, Josh Watson wrote:

Are you sure you've identified the correc fault? If left for a long

period

w so discharging all batteries a Pismo is difficult to restart - some wo't even recharge their batteries without a bit of tinkering

I'm not entirely sure - I've got one plugged in and powered on now, but nothing is happening. The main battery doesn't seem to be charging or anything. My PB5300 (my current mac) did have a similar issue, but it sorted itself out very quickly.

I d/l'ed a copy of the apple service guide - it seems to think you should disconnect all power for a few minutes and it should then work. I've heard elsewhere you should leave it plugged in and charging for 48 hours! Problem is, although I bought a bulk lot of three pismos (one of which has an I/O board component which has burnt a small hole in the bottom of the case - rest of the parts look fine). The other two look fine, so I'm hoping if I follow the service manual they'll start working :).

Any idea what kind of tinkering will get one/two going again? Would i be best buying a PRAM battery and then trying to get the 'book to charge its main battery with that in it?

I also read that if the PRAM battery is fine, any of the boards could be faulty.

Cheers,

Josh

Deep within the Pismo's manual you can find the following routine.

If the main battery won't charge, and the Pismo doesn't power up even when connected to a charger, then lift the keyboard up and remove the PRAM battery connector from the power board. Now plug the charger in, wait a few minutes then try and power up the Pismo. If successful leave for a few hours, then remove charger, power down Pismo, remove main battery and reconnect PRAM battery. Put everything back and the Pismo should now behave as normal.

Mike

Message #5 - Posted 2003/11/04 - JoshW

Hi,

eventually found that the charger was faulty! PRAM batteries needed charging too, and I now have two working Pismos (and one with a dead mobo). Thanks for the info, anyway

Josh

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