InoTec SCAMAX 2600, Service Manual

Page: 48 / 68

SCAMAX
®
2600/4000
Tech. Manual 06/2002 T-48
3.9.2 Mains Transformer
Mains power for the mains power supply is branched off before the mains transformer.
Both secondary power circuits of the mains transformer are protected by to fuses with a rating of 2A T.
One secondary power circuit supplies the two fluorescent lamps with 21,5 V AC. The other supplies 24 V
AC to the I/O board, which generates other voltages locally.
3.9.3 Switching Power Supply
Controller Board
As can be seen from the drawing above, the power supply unit receives a mains supply of ~230V as
input. Output is both +5V und +12V. These voltages power the following boards:
Controller Board
Two DT plus Boards
SCSI Board, if present
Endorser processor board with +5V.