Kyocera KM-4230

2A3/4
2-3-15
2-3-9 Deck main PCB (42 ppm: optional/52 ppm: standard)
DECK TXD
DECK RXD
PFSW4
Engine
PCB
Main
PCB
24 V DC
5 V DC
PGND
SGND
CM
PDM1
PDMSENS1
PDMSENS2
PDM1
drive circuit
PDM2
Deck paper
conveying
motor
drive
circuit
Communication
circuit
Latch
CPU
IC7
PDMPCB
Clutch
drive circuit
LED drive
circuit
Deck
open/close
detection
ROM
PPSENS1
PPSENS2
PPSENS3
PESENS
DLSW1
UPSW1
DLSW2
SCSW
DOSSW
Oscillator
circuit
PFCL1
PFCL2
CCL
I/FPCB
+24 V DC
+5 V DC
SGND
PDM2
drive circuit
Reset circuit
PLDSENS2
PLDSENS1
Figure 2-3-11 Deck main PCB block diagram
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.