powersoft K2 - Page 8

8
K2 K3 | SERVICE MANUAL
INDEX
Colour Description Notes
MAINS
PARALLEL FUSES Grant Over-Current Protection
2 VARISTORS (385 Vac) Protect from Over-Voltage
INPUT EMI FILTERS Filter electromagnetic interferences
FIRST BULK CAPACITORS (4.7 uF)
Act before P.F.C
Fast: saves the system from any voltage peak
TRANSISTOR Voltage Regulator of the Primary AUX power supply
TRANSISTOR Activates the Fan
4 DIODES
MAINs rectier Bridge
Connected as 2 bridges in parallel
SECONDARY CAPACITORS
Power Supply Stages
6 Diodes - AUX Rectifier
Remove the card reader to access the components beneath.