3M0
2-3-1
2-3 Operation of the PWBs
2-3-1 Side feeder main PWB
Figure 2-3-1 Side feeder main PWB block diagram
PAUSE
SF SEL
SF READY
CLK
Serial
communication
24V
Buffer
Reset IC
A
B
I0
I1
CLK
REM
HOLD
R24V
24V
TRAY MOT ALARM
TRAY MOT-
TRAY MOT+
SW
LED
Motor
driver IC
Motor
driver IC
Motor
driver
IC
EEPROM
SCLK
SDA
8.38 MHz
I2C
Over current
detection
circuit
Detection
Resistor
Bleeder
resistor
Over current
detection signal
latch circuit
Machine
GND
5V
CPU
SFFSW1
SFFSW2
SFPESW
PLDS1
PLDS2
LPWS
LPS
SETLED
SFCH
TSW
SDI
SDO
SFPCM
SFPFM
TCSW
SFSETSW
TLLDS
TULDS
LLSSW
ULSSW
TSSW
SFLM
SFMPWB
24V
Summary of Contents for PF-660
Page 1: ...SERVICE MANUAL Published in December 2008 843M0110 3M0SM060 First Edition PF 660 B...
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