The CPC's internal +5V supply should be disconnected when connecting the external power-supply, otherwise something terrible might happen (for example, when one supply tries to output a few more volts than the other, or so).
The giant cooling plate (and the LM323K voltage regulator) aren't meant to be mounted directly on the PCB, but rather stacked a few centimenters above of the PCB (can be seen on photos in some of the later adverts).
== Alternate Versions ==
There seem to have been one or two alternate versions:
* The photo in the magazine showed a different PCB with giant cooling plate, which won't fit on the DIY layout. That photo may have been a dummy/prototype.
* The magazine later released a correction on their letters page which recommended to replace the 5K6 and 10K resistors on the L200 voltage converter - it sounded perfectly reasonable - except that, the DIY project doesn't contain any of that components. The correction (if it wasn't total nonsense) implies that the magazine shipped different PCBs to some people via their mail-order service.
== Article ==* The photo in the original article showed a different PCB with Gl1 and Gl2 differently arranged. And, the whole design is somehow mirrored or rotated (looks as if the components are installed on the solder side). That photo may have been a prototype, or faked dummy for illustration purposes. Later adverts are showing the "normal" Gl1/Gl2 arrangement.* The magazine later released a correction on their Letters page which recommended to replace the 5K6 and 10K resistors on the L200 voltage converter - it sounded perfectly reasonable - except that, the DIY project doesn't contain any of that components. The correction (if it wasn't total nonsense) implies that the magazine shipped different PCBs to some people via their mail-order service.
And aside from the "official" Schneiderware supply, one could of course use any other suitable power supply. Nowadays, it would be easiest and cheapest to use an outsorted PC power supply, which provides perfectly regulated +5V, +12V and -12V with more than enough Amperes. == Scanned Article == * [[Media:Schneiderware 4 - Power Supply.pdf|Schneiderware #4 Netzteil (- Power Supply).pdf]] (- Netzteil - '''9/1986 pages page 78-83''', corrections on 10/1986 page 85, 5/1987 page 12)
== Pictures ==
* [[Media:LM 323 Datasheet.pdf|LM323 Datasheet]] - 3-pin 5V voltage converter (used by the power supply)
* [[Media:L200 Datasheet.pdf|L200 Datasheet]] - 5-pin variable-voltage converter (seems to be used by an alternate version of the power supply)
[[Category:Peripherals]]