Service manual

2DA/2DB
2-1-9
Timing chart 2-1-2 Main charging section operation
a: The drive motor (DM) turns on at the same time, the cleaning lamp (CL) turns on.
b: 100 ms after the drive motor (DM) turns on, main charging starts.
c: 840 ms after the exit switch (ESW) off, main charging is completed.
d: The drive motor (DM) turns off at the same time, the cleaning lamp (CL) turns off.
Figure 2-1-9 Drum section block diagram
MHVADJC
CL
MHVDRN
MC
Grid
Drum
HVTPCB
YC1-8
YC1-12
YC9-5
YC9-9
YC3-7,8
EPCB
ZENER
PCB
CL
Main
charging
CL
DM
ESW
100 ms
840 ms