Panasonic DX-600 Service Manual page 228

6.2.11. Interlock Safety Circuit
This safety circuit turns OFF the +24 VDC supply voltages when the Cover is opened. When the Cover is
opened, the microswitch(es) on the ILS PC Board are de-actuated, turning OFF +24 VDC to the Printer
Drive Circuit, the High Voltage Power Supply, and the Paper Feed Solenoid Circuits, turning OFF the +5
VDC supply voltage for the Laser Driver circuits on the Laser Unit.
+24V
LVPS
(Power Supply Unit)
Edition 1.0
+24V
Rush Current
Protection Circuit
pMPOW
DC/DC
Converter
(SC PCB)
Interlock Safety Circuit Block Diagram
228
+24V
+24VD
+24VM
Motor
+24VM
HVPS
(Power Supply Unit)
+24VM
Paper Feed Solenoid
+24VM
L+5V
DX-600/800
Cover
ILS PCB
Laser Unit
APR 2002