Thanks! The diode is a good idea. I will install it. > Depends on the capacitors... Any of them with an 'ROE' logo? If yes, it > might be a good idea to replace them since I had more than one become a > short circuit on me. Yes, they are with ROE logo and very old. I was also thinking better to replace these with a low ESR one. I would like to keep the original PSU just to be as close to original state as possible. Hege -----Original Message----- From: Gerrit Heitsch Sent: Tuesday, July 15, 2014 5:43 PM To: firstname.lastname@example.org Subject: Re: CBM-II 610 protection On 07/14/2014 10:30 PM, Istvan Hegedus wrote: > Hi All, > Now that I have managed to get a keyboard for my CBM-II 610 it works > fine. Thanks for Christian! > I would like to know however what kind of modifications should I do in > order to make the life of this computer long? > I mean, shall I install DIP cooler on CPU, PLA and any other ICs? I would use heatsinks on the ICs that get more than warm. That would be at least the SID and PLA. Check the others as well. Then I would suggest to install suppressor diodes to kill any voltage spikes or PSU going bad. I usually use the P6KE6.8A or the 1N5908 on the +5V rail. The pin with the ring goes to +5V, the other one is connected to GND. They are cheap enough to make that worth thinking about. > I have changed the power supply connection for 240V input so it is safe > in Europe now, the PSU gives proper voltages. Shall I replace any elko > capacitors in the PSU? Depends on the capacitors... Any of them with an 'ROE' logo? If yes, it might be a good idea to replace them since I had more than one become a short circuit on me. Gerrit Message was sent through the cbm-hackers mailing list Message was sent through the cbm-hackers mailing listReceived on 2014-07-15 20:00:02
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