Deck Main Pcb (42 Ppm: Optional/52 Ppm: Standard) - Kyocera Mita KM-4230 Service Manual

2-3-9 Deck main PCB (42 ppm: optional/52 ppm: standard)

DECK TXD
Main Engine
DECK RXD
PCB PCB
PFSW4
Deck paper
conveying
CM motor
drive
circuit
PDM1
PDMSENS1
PDM2
PDMSENS2
24 V DC
5 V DC
PGND
SGND
PLDSENS1
PLDSENS2
The deck main PCB (PDMPCB) consists of the CPU IC7, which serially communicates
with the main PCB (MPCB) via the engine PCB (EPCB); the deck paper conveying
motor drive circuit; the paper deck motor drive circuits; the clutch drive circuit; the reset
circuit; and the LED drive circuit. It controls the entire large paper deck.
Communication
circuit
PDM1
drive circuit
PDM2
drive circuit
Reset circuit
Figure 2-3-11 Deck main PCB block diagram
Latch ROM
CPU
IC7
Clutch
drive circuit
LED drive
circuit
Deck
open/close
detection
Oscillator
circuit
PDMPCB
2A3/4
CCL
PFCL2
PFCL1
PPSENS1
PPSENS2
PPSENS3
PESENS
DLSW1
UPSW1
+24 V DC
DLSW2
+5 V DC
SGND
SCSW
I/FPCB
DOSSW
2-3-15