Konica Minolta bizhub 40p, Service Manual

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Field Service V er. 1.0 Dec. 2007 18. Wiring diagram
189
bizhub 40P
Appendix
18.1.6 Section 5: PH unit, upper cover switch, interlock switch/5V
A0DXF5C515DA
Print control
board (PRCB)
2
3
4
5
6
7
8
1
2
3
4
1
5V DC
SG
/SOS
/PCONT 1
Vref
MO/DET-OUT
/PCONT2
/LDENB
XPDATA 2+
XPDATA 2-
P/J14
PH unit
2
1
P/J17
XPDATA 1+
XPDATA 1-
24V DC
24V RTN/SG
/POLYGONMOT ON
/POLYGONMOT CLK
2
1
P/J16
P/J13
Interlock
switch/5V
N.C. N.C.
3
1
1
3
P/J141
2 2
N.C. N.C.
3
1
1
3
P/J142
2 2
2
2
1
3
4
3
4
1
P/J131
Signal line name Description
/SOS
SYNC signal generated by SOS sensor. This signal commands start of
each scan.
/PCONT
Sample / Hold circuit
Low: Sampled (LD is forcibly lit up); High: Held
V ref
Laser output control signal for determining or adjusting the current
flowing through laser diode.
MO/DET-OUT
Laser output monitor signal for providing feedback of laser output
beam from laser diode (analog signal).
/LDENB
Control signal permitting emission of laser diode.
High: laser diode OFF.
XP DATA+
Print image data. DATA+ > DATA-: lit up
DATA+ < DATA-: put out
XP DATA-