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Oswald
Registered: Apr 2002
Posts: 5034 |
C128DCR
I was stupid, and bought one of these on a hungarian ebay like site without checking the machine in action first.
Now the problem is, the PSU looks like having been swapped: the 0-1 switch is different to my other 2 DCRs, and when turned on it is pretty noisy it even shakes the housing altho in a very fine smooth manner. Apart from this the machine works nicely.
Did the DCRs all come with the same PSU, can I be sure it has been swapped ?
How much of a work it would be to swap the PSU with my other DCR (disk drive is dead with drive not ready error)? |
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ready.
Registered: Feb 2003
Posts: 441 |
Hi Oswald,
I have 2 128DCR. I always have problems with the drive, but I guess that is due to age.
Anyhow, both work, but one of the two has now a dead PSU. When I first got it and turned it ON I also experienced a very noisy PSU and also I could feel some vibration. This is due to the electromagnetic forces in the transformer and some component that turned loose with time, I guess. After running a few demos it went totally dead. The 128DCR works good, but its PSU died. I checked the 128DCR still worked by swapping PSUs (actually I think I checked it worked using a 128D PSU). In case the switching voltage regualtor failed, the PSU has a SCR overvoltage protection, so the 128DCR was saved!
I did not check what went wrong with the PSU, but I am planning some day to replace it with a new one self-built.
In case interested here is are a few hints on how to build your own:
http://www.lemon64.com/forum/viewtopic.php?t=27552&start=250
http://www.cbm8bit.com/projects/ready/
http://www.cbm8bit.com/projects/jsaily/
but swapping them should not be too difficult. Just be careful to discharge all the capacitors before touching them. Unplug the 220VAC, of course.
One more thing: check the PSU is rated for 220VAC (or whatever you have in your country)
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Clarence
Registered: Mar 2004
Posts: 119 |
Osw, you could also swap the good diskdrive to the c128 with good psu. As far as I remember it's pretty easy, just a few screws and cables. |
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Graham
Account closed
Registered: Dec 2002
Posts: 990 |
Also you can swap 1571 mechs with C128DCR ones.
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Oswald
Registered: Apr 2002
Posts: 5034 |
Thanks for everyone for the answers. :) |
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ready.
Registered: Feb 2003
Posts: 441 |
ried once and did not wrk |
