TAM

[falen5]

just tried to power it up ........no joy

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zip!!

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tried it with / without rom and cache card....nothing

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im flying blind here people.............how do I turn it on!!!!!!!!!

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I have no pram battery installed. I found the power button on the rear, left hand side, next to the main cable from the subwoffer

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I see no activity of any kind, no led's, no sounds.............

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what is the correct start up procedure.............hit the power button on the rear and then hit the top right key on keyboard

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mmmmmmmmmmm...................will it even start without a pram battery at all??

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I didn't bother connecting the cd drive , the hard drive or the network card ......im pretty sure ive connected everything else

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should there be an led on somewhere to show life...anything.............it is as dead as my hairline!

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heelllppppp

 

[falen5]

found a similar battery from a lciii or something - same connector

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tired it....still nothing

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caps don't look good...........many have an upwards pointing dimple in the top...........

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can I test the subwoffer for power on that big round connector?.....surely there would be 5 ,7 or 12 volts coming from it ?

 

[haplain]

Doesn't need a PRAM battery to work/start. You can just press the power button on the back of the unit OR on the keyboard. 

There is a CUDA reset button on the board you should press before you try to start it up. Sounds like it has a cap issue which might be the culprit.

 

[falen5]

just metered out the subwoofer cable and nothing -

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should there be some signal coming from the powersupply to the machine ?

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ive tried the reset and nothing

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think ill just do a full recap before anything else

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later

 

[unity]

I never got around to re-capping mine yet. You might be the first to re-cap one if you do.

I would check the power supply first, its fuse, etc...

 

[unity]

By the way, the power supply is not auto-switching. Maybe I missed where you said you checked it, but if not check it.

edit: There should be 5v standby power from the supply I would think. I can check mine later if needed.

 

[falen5]

hi unity. Yep I made sure its on 230 volts - the guy I bought it from told me about that as well.

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ive opened up the subwoffer.......dam difficult......its held together with screws and double sided sticky tape

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the sticky tape is all around top rubber and all the inside is lined with some other soft tape - avoid rattels from the bass I guess.

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it looks like a standard power supply with a audio amp board on the side.

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this subwoffer was dropped at some stage of its life. There is a 2 inch crack in the plastic cover on one side, and as I began to open it 2 of the screws turned, but the plastic they were screwed into was broken off inside and was turning with the screw.

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I got it open without any futher damage.

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there is no sound from the power supply of any kind when I plug it in. usually there is a quit hum or something. I know the thing is in sleep mode waiting for the computer to switch it on......bit this thing looks dead to me

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there must be a fuse inside that power supply, and seems it has obviously had a knock... im thinking the fuse has been dislodged

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heres a few pics

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whats your thoughts people

 

[falen5]

took out the powersupply and the bose audio board

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not really much to it - looks like a standard powersupply with a output to plug in your monitor

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ha ha ......caught ya apple... hiding power ports!!!    be jasus

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gonna open the powersupply to see if there is a loose or blown fuse

 

[haplain]

Yeah check the fuse and there isn't much on the Bose board to go wrong with from my understanding. 

 

[falen5]

finally got into the powersupply - was covered with some foamy tape crap - had to cut through it

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but anyway............found the fuse....6.3 amp   250 volt

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and its dead!!!!!!!!!!!!

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great stuff

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in with a good one and slap this thing back together!!!

 

[falen5]

found a 250volt 8amp fuse in my external scsi.........that would be ok yeh?

 

[Byrd]

Good finding - no, I'd match the fuse with same.  Note there is a green LED on the underside of the sub that'll tell you if powered

 

[falen5]

just had an explosion from the power supply......holy %^^%$£

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8 amp fuse ...black and dead.

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a few caps black and dead

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at least I didn't have the tam plugged into it

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[falen5]

darn

 

[falen5]

new plan.......new power supply......ive blown the hell out of the old one

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just checked and there are simmilar powersupplys on ebay.....but with different wiring

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seems I have this blown powersupply with the correct wiring......I could just get a new one and move over the wiring

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heres a link to one for sale

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http://www.ebay.ie/itm/Delta-Electronics-DPS-150GB-A-Apple-614-0039-150W-Power-Supply-150-Watt-/141661288905?pt=LH_DefaultDomain_0&hash=item20fbabb9c9

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different apms........

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dam it!!!!!!!!

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[haplain]

YIKES! Good luck man. I've got some of those PSU's out to be looked at and they are pretty special. Let me know what you can do with a swap as I might need that here at some point.

 

[falen5]

people..............im depressed

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im gonna talk to the lepracauns.......................

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as father jack would say........FECK!!!!

 

[techknight]

Well, Usually when a fuse blows. 90% of the time that doesnt mean stick a new one in it and try again.

they blow for a reason. Well, now you found out the hard way. Think twice!

Most likely had a shorted FET, or bridge or something. coulda found it before swapping the fuse. 

 

[bibilit]

In my opinion, the Power supply is a modified 6500 unit.

I was given a Powermac 6500 and only kept the Logic board, wiring and PSU because they all were close to the TAM's one.

I think  the plug and wiring from the PSU should be the only difference.

 

[unity]

Damn! Sorry to hear that. As technight said there is a reason. I am just surprised the fuse did not simply blow again.