I have an old Toshiba 2520CDS, which was pronounced as uneconomic to repair, it has laid around for 3 yrs gathering dust. As there are a lot of 2nd hand parts going very cheap on ebay now and more out of interest than necessity I thought I would try a repair. First I plugged the adapter in and the power light and the flashing battery light came on so I left it for 24hrs and the battery light stopped flashing. I presumed the battery was fully charged. The on off switch appeared not to work until I discovered it was locked. The switch turns the LT light on and off, as well as the light on the CD tray.
Following your excellent guide on this forumn I proceed to strip the LT down and discovered the work shop that had pronounced the uneconomic repair had left many screws out especially in the Mother Board, on the assumption the work shop had stripped down as far as the motherboard I thought that this must be the cause of the problem. I made my bid and purchased a 2nd hand board claimed to be working and fully tested?? but without CPU, and cooling parts. On removing these items from the original board, I was unsure if the CPU itself was retained by screws and on turning the board over to investigate the cpu fell to the floor, I discovered it was not locked in. I presume the work shop had also taken the CPU out.
I have rebuilt the LT replacing all the missing screws, and with great expectation connected up the adapter, switched on and I was back to square one, all the lights worked, and nothing whirred or stirred. The question is have I got a 2nd board that is dud, did dropping the CPU cause it to fail and if failed would it break the power supply to the rest of the circuit. I have tried without the battery in , makes no difference. Power supply adapter has been tested as OK and of correct polarity. Can any one please advise a Meccano beginner striving to become an electronics expert what to do next. Apart from scrapping the machine. One other question under the CPU there is a foam pad with a little plastic strip, what does this strip do?
Following your excellent guide on this forumn I proceed to strip the LT down and discovered the work shop that had pronounced the uneconomic repair had left many screws out especially in the Mother Board, on the assumption the work shop had stripped down as far as the motherboard I thought that this must be the cause of the problem. I made my bid and purchased a 2nd hand board claimed to be working and fully tested?? but without CPU, and cooling parts. On removing these items from the original board, I was unsure if the CPU itself was retained by screws and on turning the board over to investigate the cpu fell to the floor, I discovered it was not locked in. I presume the work shop had also taken the CPU out.
I have rebuilt the LT replacing all the missing screws, and with great expectation connected up the adapter, switched on and I was back to square one, all the lights worked, and nothing whirred or stirred. The question is have I got a 2nd board that is dud, did dropping the CPU cause it to fail and if failed would it break the power supply to the rest of the circuit. I have tried without the battery in , makes no difference. Power supply adapter has been tested as OK and of correct polarity. Can any one please advise a Meccano beginner striving to become an electronics expert what to do next. Apart from scrapping the machine. One other question under the CPU there is a foam pad with a little plastic strip, what does this strip do?
/antix.mepis.org/index.php?title=Main_Page) should perform well. Puppy Linux will also work with the K6-2.
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