Toshiba Tecra 750cdm turns off 13~ seconds after power on \ VOGONS

Toshiba Tecra 750cdm turns off 13~ seconds after power on

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First post, by bregolin

Posted on 2016-12-30, 23:23

bregolin Offline

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Not sure if anyone has seen anything like this before- I have bought a second hand Toshiba Tecra 750cdm (a Pentium MMX 233mhz, 160mb RAM, 4gb HD, Yamaha OPL-SAx, S3 ViRGE MX) and after using it for about 4-5 hours nonstop, it powered off by itself when I was booting to the Ultimate Boot CD to run diagnostics for the HD (which is failing). Then after that, every time it powers on, it turns itself off after 13~ seconds.
I tried letting it be for a while, unplugged everything and still the same thing happens. Unplugged the hard drive and the CD drive, still happens. Even when I'm inside the BIOS setup, it still happens.

I'm guessing it is the power adapter, it's what makes most sense to me, as it is not overheating for sure.

I was going to try and tear it open but I couldn't find any service manual so I decided not to try and pry it open. Well, not for now at least 😀

Reply 1 of 4, by Dreamer_of_the_past

Posted on 2016-12-31, 01:17

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May be capacitors...

Reply 2 of 4, by collector

Posted on 2016-12-31, 02:03

collector Offline

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Ask old hardware questions in Marvin.

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Reply 3 of 4, by eL_PuSHeR

Posted on 2016-12-31, 09:57

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[Thread moved to Marvin Section]

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Reply 4 of 4, by bregolin

Posted on 2016-12-31, 16:31

bregolin Offline

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Thanks guys, and sorry for posting in the wrong forum.

When I got up this morning I tried turning it on again just to see what would happen- nothing came on the screen and then it shut itself off after 15 seconds, so it must have had a bad night of sleep.

By then I was certain it was the power supply, so I took it to a shop nearby where I used an universal power adapter and it did power up, but it also turned off after 15 seconds or so.

Possibly some bad capacitors or voltage regulators to blame, but whatever it is, it's not worth the hassle and I'm sure I'll end up paying as much to fix it as I paid for the whole thing. Will return it to the seller next week.

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