Sharp Mx 2300n Service Manual

MX-2300/2700 N/G  ELECTRICAL SECTION  11 – 27
S. FAX section (P19)
CN2CN3 CN8
B3P-PH-K-S
MJ1 CN2 CN7
MJ-64J-RD315
MJ2
MJ-66J-RD315
S32B-PHDSS-B B32B-PHDSS-B
TX24-40R-10ST-H1 TX25-40P-8ST-H1
D-GND
P-GND
31
32
P-GND
32
D-GND
31 29
30 25
26
27
28 21
22
23
24 17
18
19
20 13
14
15
169
10
11
12
3.3V
3.3V
1
2
3
4
5
6
7
8
FAX_CTS(CS)-5VOFAX_RTS(CS)-12V
FAX_CTS(D)-D-GNDFAX_RTS(D)-FLVPPFAX_TXD(CS)+PLED-FAX_TXD(CS)-D-GNDFAX_TXD(D)-RES_MPF-FAX_TXD(D)+FAX_WUP-RES_FAX-FAX_RXD(CS)+D-GNDFAX_RXD(CS)-D-GND
D-GND
3.3V...

MX-2300/2700 N/G  ELECTRICAL SECTION  11 – 28
T. MFP board section 1/2 (P20)
PHNR-4-H + BU04P-TR-P-H
P QR/P4 8P S
CN5HU5-400PNA-S53T-FA
CN8 USB-B CN9 USB-A CN26 LAN CN18 RS232C
CN21
CN4TX25-100P-LT-H1E CN15 CN17
B4P-VH
B10B-PHDSS-B
9 CD
RXD
TXD
DTR
GND
DSR
RTS
CTS
RI5
6
7
8 1
2
3
4
USB2.0(HOST)
USB1.1(DEVICE)
LAN RS232C
MFPC PWB HDD
MOTHER PWB
NC TX+
TX-
CT
NC1
2
CT
RX+
RX-5
6
7
8 3
4 5V
D+ D-
GND1
2
3
4 5V
D+ D-
GND1
2
3
4
8 12V
HDDFM_PWMD-GNDHDDFM_LD
HDD
FAN
2
4
6
2
HDDFM_PWM
3
1 12V 4
D-GND 8 4...

MX-2300/2700 N/G  ELECTRICAL SECTION  11 – 29
U. MFP board section 2/2 (P21)
CN19
B32B-PHDSS-B
CN22FX8C-60S-SV5
2nd FAX UN
(OPTION)
EXTEND PCI
57
58
59
60 53
54
55
56 51
52 47
48
49
50 43
44
45
46 39
40
41
42 35
36
37
38 31
32
33
34 27
28
29
30 23
24
25
26 19
20
21
22 15
16
17
18 11
12
13
147
8
9
103
4
5
6
32 31
MFPC PWB
29
30 28
26
27 24
25 22
23 20
21 18
19 16
17 14
15 12
13 10
118
9 6
74
5 2
3 1
1
2
PCI1_SERR
PCI1_PERR
D-GND
D-GND
PCI1MAC_IRDY
PCI1MAC_TRDY
PCI1MAC_DVSELPCI_STOPD-GND...

MX-2300/2700 N/G  ELECTRICAL SECTION  11 – 30
3. Signal list
Signal 
nameName Function/OperationConnector level Connector 
No.Pin 
No.PWB 
nameNote
“L” “H”
1TNFD Waste toner full detection switch 
[Mechanical switch]Detects the waste toner full.  
1TUD_CL Transfer belt separation CL 
detectionDetects the transfer belt separation 
CL.
1TUD_K Transfer belt separation BK 
detectionDetects the transfer belt separation 
BK.
1TURC Primary transfer separation clutch 
[Electromagnetic clutch]Controls the primary...

MX-2300/2700 N/G  ELECTRICAL SECTION  11 – 31
DSW_C Tray 1 and 2 transport cover 
open/close detectionDetects the tray 1 and 2 transport 
cover open/close.
DSW-F Front door open/close switch 
[Micro switch]Detects open/close of the front door, 
and turns ON/OFF the power line of 
the fusing motor and the LSU laser.
DSW-R Right door open/close switch 
[Micro switch]Detects open/close of the right door, 
and turns ON/OFF the power line of 
the fusing motor and the LSU laser.
DVM_CL Developing drive motor...

MX-2300/2700 N/G  ELECTRICAL SECTION  11 – 32
MPUC Manual paper feed clutch 
[Electromagnetic clutch]Controls ON/OFF of the manual paper 
feed roller in the manual paper feed 
section.
MPWD Manual paper feed tray paper 
width detector [Volume resistor]Detects the manual paper feed tray 
paper width. 
MSW Main SW [Seesaw switch] Turns ON/OFF the main DC power 
source.
MTOP1 Manual paper feed tray pull-out 
position detector 1 
[Transmission type]Detects the manual paper feed tray 
paper pull-out position...

MX-2300/2700 N/G  ELECTRICAL SECTION  11 – 33
VR204 Volume +5VN output adjustment DC power 
PWB
VR205 Volume +3.3V output adjustment DC power 
PWB
VR402 Volume +5VO, +5VL output adjustment DC power 
PWB
WTNM Waste toner drive motor 
[Synchronous motor]Stirs waste toner.  Signal 
nameName Function/OperationConnector level Connector 
No.Pin 
No.PWB 
nameNote
“L” “H” 

MX-2300/2700 N/G  OTHERS  12 – 1 MX2700N
Service Manual [12] OTHERS
1. System settings
A. System settings (General)
(1) When User Authentication is not Enabled
1) Press the [SYSTEM SETTINGS] key.
2) Configure the desired system settings.
• User authentication is initially disabled (factory default set-
ting).
(2) When User Authentication is Enabled
a. Login by login name and password
1) Touch the [Login Name] key.
2) Select the user.
3) Enter a password.
(1) Touch the [Password] key.
(2) Enter a password...

MX-2300/2700 N/G  OTHERS  12 – 2 *1: In some countries and regions, the printer expansion kit must be
installed.
*2: When the PS3 expansion kit is installed.
*3: In some countries and regions, the facsimile expansion kit or
the Internet fax expansion kit or the network scanner expansion kit
must be installed.
*4: In some countries and regions, the network scanner expansion
kit must be installed.
*5: When the Internet fax expansion kit is installed.
*6: When a right tray is installed.
*7: When user...

MX-2300/2700 N/G  OTHERS  12 – 3
◆ Customize 3 Quick File
X USB Memory Scan
◆ Customize 1 Special Modes
◆ Customize 2 Erase
◆ Customize 3 Suppress BG
X Data Entry
◆ Customize 1 Special Modes
◆ Customize 2 File
◆ Customize 3 Quick File
■ Device Control
● Original Size Detector Setting
X Original Detection Size 
CombinationVaries depending on 
country and region
X Cancel Detection at Document 
GlassDisable
● Disabling of Document Feeder*3 Disable
● Original Feeding Mode*3 All Disabled
● Disabling of Duplex...