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6-2
BLOCK DIAGRAM
Service Manual
6.2 Phaser 3120
MHVPWM
THVPWM
F.G
EXIT-SENSOR
FEED-SENSOR
P/EMPTY-SENSOR
MP-SENSOR
IN-LET
-
+
GND
THV-RD
BIASPWM
THV_EA
HEATER-THERMISTOR
+24V
+5V
+3.3V
FAN
POWER
CORD
Crystal
12MHz
Main Clock
Power On Reset
SMPS + Main 26p
CPU Jupiter 4
+24V
Main Motor
C-CLUTCH
USB
HEATER-AC
SMPS PART's
COVER OPEN SW
CN8
CN8
CN11
CN6
CN1
CN3
CON4
CON1
CN2
CN9
HVPS PART'S
VOLTAGE
DETECTOR
PTL
LSU
PANEL B’D
2 LED
1KEY
MHV
OPC GND
SUPPLY
DEV
THV
FUSER ASS’Y
M-CLUTCH
MOTOR DR
PART'S
FLASH
MEMORY
0.5MB
(128Kx32bits)
ARM7
90MHz
Video
Clock
LD
SSCG