Dell 2355DN Service Manual - Page 101

System Diagram, Block Diagram

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System Diagram 5. System Diagram 5.1 Block Diagram 5-1 Service Manual Dell 2355dn Block Diagram REAR COVER OPEN FLAT COVER OPEN SCAN MOTOR CCD 3P HVPS NIC P_EMPTY THV FEED_SENSOR CCD FAN 3P MAIN PBA 4P HYPER 2P SPEAKER 4P INNER TEMP 18P LSU 3P 5VS SW DDR2 SDRAM (SODIMM/BASE) 256MB DDR2 SDRAM (SODIMM/Option) 256MB RTC battery (CR2032) RTC Clock (32.768MHz) USB2.0 Host OPE I/F EEPROM (M24512) USB 2.0 (ISP1761) USB host USB HUB (USB2415) USB2.0 Device 5P CHORUS3 3P 4P 24P 8P 22P MAIN CLOCK (CY25811) SCAN MOTOR DRIVER AFE Chip (A3983) (HT82V38) RESET IC (XC61FN3112MR) PHY chip (BCM5241) EEPROM (M24256) Flash ROM (S29GL256P90) 32MB Flash ROM (for backup) (S29GL008) 1MB Flash ROM (AT26DF321) (for FAX) 4MB DC-DC (MVPG31) 5V˧3.3V DC-DC (MVPG31) 5V˧1.0V DC-DC (ISL88550AIRZ) 5V˧1.8V/0.9V MHV REGI_SENSOR DEV EXIT_SENSOR SUPPLY OPC DUPLEX0_SENSOR DUPLEX1_SENSOR FUSER 24V FUSER GND 24VS COVER OPEN SW_1 / 2 DADF 11P/12P DADF MOTOR DRIVER (A3983) 2P PICKUP_SOL 3P REGI_SOL 3P EXIT_SOL 6P P_POS P_REGI 7P COVER OPEN P_DET 4P DADF MOTOR MODEM (Silab Smart DAA) WNIC (Option) SCF (Option) 5P 4P 10P 2P 4P MP_EMPTY MP_CLT PICKUP_CLT REGI_CLT 12P BLDC THERM CRUM (S-V1.1) 40P 8P (DIN 8P) DRIVER 4P DUPLEX MOTOR DUPLEX MOTOR DRIVER (A3983) 3P 6P MAIN_FAN EXIT MOTOR DRIVER (A3983) 8P 28P OPE MAIN MICOM (S3C2416) SCAN TEMP 16P DUPLEX_FAN EXIT MOTOR FUSER CONTROL 18P 4.3 Inch LCD 3P CCD HOME AC 110 / SMPS 220V INLET

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System Diagram
Service Manual
5-1
5. System Diagram
5.1
Block Diagram
MAIN PBA
Dell 2355dn Block Diagram
CHORUS3
DDR2 SDRAM
(
SODIMM/BASE
)
256MB
DDR2 SDRAM
(
SODIMM/Option
)
256MB
USB 2.0
(
ISP1761
)
SCAN MOTOR DRIVER
(
A3983
)
RESET IC
(
XC61FN3112MR
)
Flash ROM
(
S29GL256P90
)
32MB
Flash ROM
(for backup)
(
S29GL008
)
1MB
RTC battery
(
CR2032
)
RTC Clock
(
32.768MHz
)
MAIN CLOCK
(
CY25811
)
PHY chip
(
BCM5241
)
DC-DC
(
MVPG31
)
5V
1.0V
DC-DC
(
MVPG31
)
5V
3.3V
DC-DC
(
ISL88550AIRZ
)
5V
1.8V/0.9V
EEPROM
(M24512)
EEPROM
(M24256)
USB host
LSU
HYPER
SPEAKER
5VS SW
INNER TEMP
USB2.0 Device
USB2.0 Host
5P
CRUM
(S-V1.1)
BLDC
THERM
MP_EMPTY
PICKUP_CLT
REGI_CLT
MP_CLT
10P
2P
4P
4P
SCAN MOTOR
CCD HOME
FLAT COVER OPEN
3P
3P
CCD
NIC
4P
2P
4P
18P
3P
OPE I/F
HVPS
FEED_SENSOR
REGI_SENSOR
EXIT_SENSOR
24VS
24V
COVER OPEN SW_1 / 2
MHV
OPC
SUPPLY
DEV
THV
FUSER
FUSER
GND
DUPLEX0_SENSOR
DUPLEX1_SENSOR
SCF (Option)
MODEM
(
Silab Smart DAA
)
WNIC (Option)
12P
40P
8P (DIN 8P)
22P
P_EMPTY
3P
DADF
DADF
MOTOR
DRIVER
(
A3983
)
PICKUP_SOL
P_DET
REGI_SOL
EXIT_SOL
COVER OPEN
P_POS
P_REGI
DADF MOTOR
6P
3P
3P
2P
4P
7P
OPE MAIN
4.3 Inch LCD
MICOM
(
S3C2416
)
18P
8P
DRIVER
DUPLEX MOTOR DRIVER
(
A3983
)
EXIT MOTOR DRIVER
(
A3983
)
DUPLEX MOTOR
4P
EXIT MOTOR
MAIN_FAN
DUPLEX_FAN
3P
6P
28P
SMPS
INLET
FUSER
CONTROL
AC 110 /
220V
16P
11P/12P
24P
SCAN TEMP
REAR COVER OPEN
5P
4P
8P
Flash ROM
(
AT26DF321
)
(for FAX)
4MB
USB HUB
(USB2415)
CCD FAN
3P
AFE Chip
(
HT82V38
)