Panasonic KX-MB263RU / KX-MB263UA (serv.man7) Service Manual ▷ View online
13
KX-MB263RU-B/KX-MB263UA-B
6.2.
GENERAL BLOCK DIAGRAM
MAIN UNIT
SOC (IC300)
This custom IC is used for general MFP operations.
ROM (IC402)
This 4MB FLASH ROM contains all of the program instructions on the unit operations.
SYNCHRONOUS DYNAMIC RAM (IC400)
This 256Mbit SDRAM is used for CPU work and receiving memory and page memory.
POWER SUPPLY
DC-DC converters generate 3.3V and 1.2V for system power.
Regurator generates 5V for peripheral devices.
Regurator generates 5V for peripheral devices.
READ SECTION
CIS Unit to read transmitted documents.
CIS Unit is connected to FLATBED transit Unit.
Scan data is converted by AFE(IC503).
CIS Unit is connected to FLATBED transit Unit.
Scan data is converted by AFE(IC503).
MOTOR
This model has 1 DC motor and 2 stepping motors.
IC300 drives the DC motor for printing.
IC502 and IC700 drive the stepping motor for CIS carriage.
IC300 drives the DC motor for printing.
IC502 and IC700 drive the stepping motor for CIS carriage.
LSU
Forms the images on the OPC DRUM by rotating polygon motor and reflecting the laser beam against polygon.
SENSORS
Composed of 2 switches and 5 sensors.
POWER SUPPLY BOARD
Supplies +24V and +7V to the Main unit and controls the Heat Lamp.
HIGH VOLTAGE POWER SUPPLY BOARD
Supplies bias need for the printing operation: bias of the DRUM, Developing and Transcription.
FIXING UNIT
Composed heat lamp, thermistor and thermostats.
1)
CPU
ARM9 operating at 250MHz.
2)
SDRAM Controller
Controls SDRAM Memory.
3)
USB Controller with PHY
Apply to USB2.0 HS
4)
Scanner I/F
Controls the CIS and AFE, and process the scan images.
5)
LSU I/F
Controls the polygon motor and outputs the VIDEO signal to LSU.
6)
MOTOR I/F
Controls the DC motor and Stepping Motor.
7)
FAN I/F
Controls FAN MOTOR and detect the rotation of FAN MOTOR.
8)
OPERATION PANEL I/F
Serial interface with Operation Panel.
9)
SENSOR I/F
Detects the sensor signal.
10) I/O PORT
I/O Port Interface.
11) A/D, D/A converter
Sends beep tones, etc.
Convert the analog signal to the digital signal.
Convert the analog signal to the digital signal.
12) RTC
Real time clock.
14
KX-MB263RU-B/KX-MB263UA-B
Ma
in B
o
ar
d
SoC
(siriu
s
Lite)
Po
ly
go
n mo
to
r
(LSU)
USB
FL
A
S
H
(3
2 M
bit)
SDRAM
(256
M
b
it
)
O
p
e
ra
tio
n P
an
e
l B
o
a
rd
Op
e
G/
A
AF
E
2L
in
e
LCD
Motor
Dri
v
e
r
(FB)
Fl
at B
ed
Fl
at B
ed
Th
erm
istor
(Room)
LA
N
Ph
y
Va
ri
s
tor
Carr
ia
ge
m
o
to
r
Color C
IS
F
B T
ra
ns
it
Not used
C
N
50
9
C
N7
50
CN
30
0
C
N
51
0
CN
50
0
C
N5
01
CN
50
2
C
N5
04
C
N
50
5
CN
51
1
C
N5
08
C
N
50
7
C
N
51
4
C
N5
06
C
N
61C
N
62
C
N
60
C
N
59
C
N
2
C
N1
DC motor
Re
si
st
So
le
no
id
Pick
-u
p So
le
no
id
H
V
U
F
A
N moto
r (l
eft)
Hol
e
IC
P
ick U
p
Se
ns
o
r
T
o
ne
r Se
ns
or
CN
64
C
N6
7
C
N6
6
CN
65
C
N
51
C
N
63
C
N5
3
CN
52
C
N5
0
F
A
N moto
r
(ri
gh
t)
Th
ermostat
Heater lamp
SW
PS
C
N1
01
A
C
i
n
le
t
Th
erm
istor
(He
ater)
Th
erm
o
stat
AC
c
o
rd s
e
t
DC-DC
CONVERTER
IC400
IC402
IC300
IC50
IC503
IC502
IC1
tr
o
r
R
e
g
is
e
Se
ns
e
PTOP
S
nsor
IT S
e
ns
or
EX
15
KX-MB263RU-B/KX-MB263UA-B
6.3.
MAIN BOARD SECTION
6.3.1.
Data Flow
[PC Scan]
1. An analog image data is output from CISunit to IC503.
IC503 decode the analog data to digital data, and output to IC300.
Scanner I/F in IC300 process image data and store it in IC400
through SDRAM I/F.
Scanner I/F in IC300 process image data and store it in IC400
through SDRAM I/F.
2. If necessary, the data is compressed via DSP.
3. The data is output to PC through the USB I/F.
3. The data is output to PC through the USB I/F.
CN59
CN510
CN61
CN500
SDRAM
Scanner
I/F
Print I/F
AFE
IC503
IC400
IC300
Mai n Board
FB tr ansit Board
CI S unit
LSU
CN300
SDRAM
I/F
USB
USB
I/F
CPU
DSP
JBIG
PC
[PC print]
CN59
CN510
CN61
CN500
SDRAM
Scanner
I/F
Print I/F
AFE
IC503
IC400
IC300
Mai n Board
FB tr ansit Board
CN300
SDRAM
I/F
USB
USB
I/F
CPU
DSP
JBIG
1.The print data is output from PC through USB
and pass the USB I/F in IC300.
then the data is stored in IC400 through SDRAM I/F.
2. Print I/F retrieve the data from IC400 and output it to LSU.
CI S unit
LSU
PC
16
KX-MB263RU-B/KX-MB263UA-B
[Copy]
CN59
CN510
CN61
CN500
SDRAM
Scanner
I/F
Print I/F
AFE
IC503
IC400
IC300
Mai n Board
FB tr ansit Board
CN300
SDRAM
I/F
USB
USB
I/F
CPU
DSP
JBIG
1. An analog image data is output from CISunit to IC503.
IC503 decode the analog data to digital data, and output to IC300.
Scanner I/F in IC300 process image data and store it in IC400
through SDRAM I/F.
Scanner I/F in IC300 process image data and store it in IC400
through SDRAM I/F.
2. If necessary, the data is compressed via JBIG.
3. Print I/F retrieve the data from IC400 and output it to LSU.
3. Print I/F retrieve the data from IC400 and output it to LSU.
CI S unit
LSU
PC
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