Sharp Mx 2300n Service Manual

MX-2300/2700 N/G  ROM VERSION-UP  10 – 1
MX2700NService Manual [10] ROM VERSION-UP
1. General
A. Cases where version-up is required
ROM version-up is required in the following cases:
1) When there is a necessity to upgrade the performance.
2) When installing a new spare ROM to the machine for repair.
3) When installing a new spare PWB unit with ROM installed to it.
4) When there is a trouble in the programs in ROM and it must be
repaired.
B. Notes for version-up
(1) Relationship between each ROM and...

MX-2300/2700 N/G  ROM VERSION-UP  10 – 2
B. Firmware download using USB device
(1) Firmware update from USB memory device
First you must install the firmware file (xxx.sfu) to the root of a
USB jump drive.
•If the firmware is in a folder, Simulation 49-01 cannot open
the folder.
•Secure Jumpdrive will not work.
•Must have a minimum of 32MB of storage capacity to load
the firmware onto it.
1) Insert the USB memory device into the main unit.
2) Enter the 49-01 screen. Press the button of the file to be...

MX-2300/2700 N/G  ROM VERSION-UP  10 – 3
7) Go to Simulation 22-05 and confirm the firmware has
upgraded successfully.
Note: If the Imager locks up or loses power during the
upgrade, it could corrupt the firmware, preventing the
imager from booting up normally.  If this occurs, you can
rescue the firmware using the following procedure:
•Rename the firmware file on the USB device to emup-
date.sfu
•Power off the imager (both switches) and insert the USB
device (Jumpdrive) into the USB port of the imager....

MX-2300/2700 N/G  ROM VERSION-UP  10 – 4 3) After selecting the file, click the “Submit” button to send the firmware to the Renaissance machine.
Update processing begins. While processing takes place, “Firmware Update, now processing...” appears.
4) When the firmware update is finished, “Firmware Update completed. Please reboot the MFP.” appears. Pressing the [Reboot] key, the
machine will restart to complete the update. The browser will shift to the following screen.
“Close the browser and open again to...

MX-2300/2700 N/G  ELECTRICAL SECTION  11 – 1 MX2700N
Service Manual [11] ELECTRICAL SECTION
1. Block diagram
A. System block diagram
DM_K
DVM_K
DM_CL
DVM_CL
CPFM
RRM
POM
FUMOSM
PFMCPFC
1TURC
CLUM1
PCSS
CPUC1
DH1
CLUM2
MPUC
CPUC2
MPFSMPGS
PGM
LSUSS
POFM_F
OZFM
PSFM
HL1_UPOFM_RHL2_LHL3_U
DL_K
DL_M
DL_C
DL_Y
ADUM_L
TNM_K
MC
2TC
1TC
DESK
LCC
FIN 1K
FIN INNER
TNM_C
TNM_M
TNM_Y
PPD1
POD1
PPD2
POD2
POD3TFD3
TFD2HPOS
DSW_R
DHPD_K
DHPD_CL
REGS_FPCSREGS_R
MPFD
MPLD1MTOP1MTOP2
MPED
CPFD1
MPWD
CLUD1CPED1CSS1CSPD1...

MX-2300/2700 N/G  ELECTRICAL SECTION  11 – 2
B. MFP controller PWB
SO-DIMM
DIMM1SO-DIMM
DIMM2
DDR
SDRAMx2
DDR bus 1
574
X5
72pinDIMM Socket
100pinDIMM Socket
FLASH
Mem.x2
LOCAL bus
(ROM bus)
PCI bus 2
ATA
connector
IDE bus
Expansion
PCI connector
PCI bus 1
ENGINE IF
connector
LSU IF
SCAN IN IFVIDEOIF
SCAN OUT IF
OPE IF
SDR
FLASHFLASH IF
LAN USB-D
USB-H
ICU-IMG IF
LVDS
SO-DIMM
DIMM4SO-DIMM
DIMM3
DDR bus 3
64bits width64bits width 32bits width
EEPROM
256Kbits
I2C(Ch.0)
I2C(Ch.0)
I2C (Ch.1)
EEPROM
2Kbits...

MX-2300/2700 N/G  ELECTRICAL SECTION  11 – 3
C. PCU PWB
IC1
CPU
H8S/2373
IC5
SRAM
(1Mbit)
FLASH ROM
(16Mbit)IC6
EEPROM
(64kbit)
IC9
PMC ASIC
IC8
I/O ASIC
IC7
DFF
LCX574
I2C Bus
IC27/IC30/IC31/IC37
MUX
HC151x5
CLOCK
LCCFINISHERDESKIC4
RESETIC
AnalogInput
Fuser Thermistor (TH_UM/LM/US)
Toner Detector (TCS_K/C/M/Y)
Process Cont. sensor (PCS_K/CL)
Resist sensor (REGS_F/R)
To
LSU
Via
Mother
Optional
To
MFPC
Via
Mother
UARTUARTUARTUARTUART
DC Power
Supply
X1
Xtal
19.6608MHz
IC2
Spread
Spectrum
Sensor Input...

MX-2300/2700 N/G  ELECTRICAL SECTION  11 – 4
D. Scanner control PWB
SCNcntPWB
RSPF Unit
RSPF FEED
MOTOR
SCANNER
MOTOR
RSPF RVS
MOTOR
PHOTO
SENSOR
CLUTCH
FlashROM 
8Mbit
/CS0
(/CS0 RESERVE)
SDRAM BUS
CCD PCB
With AFE&LVDS
LVDS
EEPROM
32Kbit
I2C
LAMP UN
STMP UN
RGB10bit*3
LVDS Driver
4b i t * 2
LVDS
RGB8bit*3
RGB8bit*3
LVDS
LVDS Driver
30bitMHPS
LVDS Receiver
4bit *2
PANEL PCB
CARD READERAUDITOROCSW
Original detection
(Light receiving)Original detection
(Light emitting)
LCD
INVERTER PCB
LVDS
CPU
H8S/2373...

MX-2300/2700 N/G  ELECTRICAL SECTION  11 – 5
E. Serial communication
CPU
H8S/2373
TxD_DSKRxD_DSKT
xD_LC
CRxD_
LC
CTxD_FINRxD_FIN
O.C.O.C.O.C.O.C.O.C.O.C.
I/O ASIC
µPD65892GC-
103
O.C.O.C.O.C.O.C.O.C.O.C.
CPU
M30843FWGP
Schmit Inv.O.C.O.C.O.C.O.C.O.C.
CPU
H8/3684CPU
H8/3687
DTR_FINDSR_FINDTR_DSKDSR_DSKDTR_LCCDSR_LCC
PCUFINISHER
(Optional)
DESK
(Optional)
LCC
(Optional)
Schmit Inv.O.C.O.C.O.C.O.C.O.C.
A[4:0]D[15:8]
Schmit Inv.Schmit Inv.Schmit Inv.
SCK_LSURSV_DATTRANS_DAT
Schmit Inv.Schmit Inv.Schmit Inv....

MX-2300/2700 N/G  ELECTRICAL SECTION  11 – 6
F. AC power line diagram (100V series)
VR1A1
F102
RY 1
Z101
F1
VR3
L1
L2
F101
A1
F301F103
WH-SW
VR2
A2
D101~
~+ -
HLOUT_UM
INT24V1
HLOUT_LM
/HL_PR
HLOUT_US
24V2GND
L
N15A 250V
AC PWB
2
6RY 1
62 G
HL PWB
T1
GND 1G
4
4
GND T1
1 T2
drawer
TD1
SSR1 SSR2
HL MAIN
THERMOSTATTHERMOSTAT
FUSING UNIT
HL LOW
THERMOSTAT
HL SUB62GND G
4
1 SSR3
T2T1
T2 MAIN POWER SW
WH-L WH-N
NC
WH PWB
NO
10W
LCC
T2.0AH/250V
WH-L WH-NF3
AC IN
TD2
TD3
10WDESK10W
MAIN UNIT
SCN
SCN unit
5W...