Ricoh Aficio FX10, Service Manual

Page: 79 / 284

11. Jumpers, Switches, and Test Points
Item Description
CN40-1 Analog video signal
CN40-2 Scanner clock
CN40-3 Synchronization signal
CN40-4 COM1 ground
TB1 Switches the system backup battery ON/Off.
Note: Make sure to short these pins when you replace the FCU.
2.4.2. PSU
•
+24Vdc generation
•
Fusing lamp ac power supply and control.
P S U
1 H T O R O N
1 H T O N
+ 2 4 V
+ 2 4 V D
C O M 3
S w i t c h i n g
Circuit
A C L
Surge
P r o t e c t i o n
A C L
G N D
H T L
H T N
Phase
Control
Interlock
Switch
F 2 F 1
Main
Switch
Surge
P r o t e c t i o n
AC Input
Fusing Lamp Output
H523D542.wmf
DETAILED SECTION DESCRIPTIONS June 10th, 1997
PCBs
2-50