Brother HL-4040CN Service Manual page 323

Wiring Diagram (2/2)
LINK
CN12
+3.3V(LED)
MAC+PHY
LED:Green/Yellow
(SMSC:LAN91C115)
TPI+/-
(internal Logic:1.8V)
TPO+/-
BEL:08B0-1X1T-03-F
16
SPEED
+3.3V
CN7
+3.3V +3.3V
16MB SDRAM
16MB SDRAM
(128Mbit) (128Mbit)
64
13
RASn/CASn/BA0/BA1
CS1n/CS2n
DQM[7:0]
CLK1/CLK2
EEPROM
CN13
ACON:UBR23-4K5200
CN14
ACKn/BUSY/PE/SELECT/FLTn
CDCC CLK
STBn/INITn/SELINn/ATFEEDn DATA
Gate
INTn
Array
REQn
DATA 8
(NEC:UPD65421MC-
RSTn
111-5A4-A)
57RE-40360-830B(D29B)-FA
+5V +3.3V
CN1
15 E2P_SCL
E2P_SDA
GND
VDO3_P
VDO3_N
GND
VDO2_P
VDO2_N
GND
VDO1_P
VDO1_N
GND
VDO0_P
VDO0_N
1 GND
15FMN-BMTTN-A-TF
CN4
1 BD0n
BD1n
GND
COMMAND
STATUS
COMMAND
STSREQ_N
STSREQ_n
VSYNC_n
CMDREQ_n
CMDRDY_n
10 E_RESETn
RESETn
B10B-CZHK-B-1
CN5
1 +3.3V
+3.3V +3.3V
+3.3V
GND
GND
GND +6.8V
+5V
7 +6.8V REG.
(to Panel/CDCC/RTC)
B7B-PASK-1
+6.8V
(to USB HOST)
MAIN PCB:B512246
+3.3V
+3.3V
LAN Clock
8MB or 16MB
8MB or 16MB
Flash ROM
25.00MHz Flash ROM
16
DATA 16
ADD 23
+3.3V +3.3V
16MB SDRAM 16MB SDRAM
(128Mbit) (128Mbit)
50MHz
DATA[63:0]
50MHz
ADR[12:0]
50MHz
RASn/CASn/BA0/BA1
50MHz
CS0n
50MHz
CS1n/CS2n
50MHz
DQM[7:0]
CKE
100MHz
CLK0
100MHz
CLK1/CLK2
SCL
SDA
128kbits
EEPROM
+3.3V
VBUS(detect)
VBUS
HS_D+
HS_D-
D+/D-
FS_D+
FS_D-
CDCC
GPIO
BD0n/BD1n
VIDEO
LASER Video Clock
28.57296MHz PLL
STATUS
UART
VSYNC_n
CMDREQ_n
GPIO
CMDRDY_n
RESET IC
+3.3V
RESETn
(Vdet=2.8V)
+3.3V
(Buffer Vcc)
+1.5V
+3.3V REG. (Logic Vcc)
MAIN ASIC
(Ashura)
6-21
+3.3V
16
MAIN Clock
PLL
SYSCLK(100MHz)
48.00MHz
CPU 300MHz
SSCG
USB CLK(48MHz)
Half_SYSCLK(48MHz)
Panel
UART
+5V
+6.8V REG.
5V on/off
PPON
Overcurrent
High-side SW
OCI
HS_D+
HS_D-
FS_D+
FS_D-
+5V
+6.8V REG.
5V on/off
PPON
Overcurrent
High-side SW
OCI
HS_D+
HS_D-
FS_D+
FS_D-
RTC clock
32.768kHz +5V
RTC
(Real time
clock)
B3.3V
VCC
REG.
1.5V
VCC
REG.
ELECTRIC
DOUBLE LAYER
CAPACITOR
Voltage
RTC_RESET_N
Detector
CS2 RSTn(From system reset)
TXD/RXD DEBUG SERIAL
(For debug
JTAG JTAG
LCD(16X1)
Status
BACK LIGHT LED
(Yellow)
(Red x 6/ Green x6)
Back-light PCB
B512249
Direct Print
(Blue)
CN11 CN2
+5V +5V 1 5 +5V
RESPONSE RESPONSE
PANEL
COMMAND COMMAND
PCLK PCLK Gate Array
GND 5 1 GND (PNL9)
292161-5 292161-5
KEY
Matrix
(8Key)
USB HOST Relay PCB
B512252
CN3 CN2
CN1
1 FG 6 FG
VBUS(+5V) 5 VBUS(+5V)
DP 3 DP
USB A type
DM 4 DM
GND 2 GND
6 FG 1 FG
PUBAR1-04FTBSCNN2N0
B06B-CZHK-B-1 S6B-PH-K-S
Wireless LAN
MODULE
CN2 CN
1 FG 6 FG
VBUS(+5V) 5 VBUS(+5V)
DP 3 DP
DM 4 DM
GND 2 GND
6 FG 1 FG
BM06B-SRSS-TB BM06B-SRSS-TB
Confidential
IMSA-9616S-06A-TB
CN2
FFC
PANEL PCB
B512248