-23-
Chassis Block Diagrams
POR
T
OUT
M
OTO
R
CONTR
OL
IC801
CPU
READ
Y
LAMP_REP
RC1_SW
R/C1
RC2_SW
SCL5
SDA5
SCL3
SDA3
SCL_AD
SD
A_AD
OPT1
OPT2
R_C
R/C
JA
C
K
USB
CONTR
OL
POR
T
KEY
SWITTCH
LED
R/C
RECEIVER
Q1851
Q1852
IC1851
LED-On:
L
RC1:
L
RC2:
L
FR
ONT RC BO
ARD
I/F BO
ARD
NETW
ORK
OPTION
CONTR
OL BO
ARD
AV
BO
ARD
SENSOR BO
ARD
PO
WER
BO
ARD
SUB PO
WER
BO
ARD
DRIVE BO
ARD
MAIN BO
ARD
IC1801
I/O EXPANDER
IC5801,IC5831,
IC5861,IC5881
BUFFER
OPTION RESIST
ORS
K10A
K30R
K10B
K8U
5
3
6
2
1,7
64
35
W
ARNING
33
49
47
34
63
2
K8J
K68A
118
139,140
29,30
51,52
5
119
120
121
122
143
From the power fail
detection diodes.
IC1101
3D-Y/C
IC1641
I/O
EXP
ANDER
IC4101
SELECT
OR
IC2101
3L-Y/C
IC3101
VIDEO
DECODER
IC9405
DAC
IC4231
I/P-VCO
IC9931
I/O
EXPANDER
IC212
DAC
IC808
EEPROM
IC7801
DAC
IC401
DIGITAL
GAMMA
IC803
FLASH
ROM
IC9884
SERIAL-
PARALLEL
IC804
SRAM
IC9851
SERIAL-
PARALLEL
IC9801
USB
CONTR
OL
IC4201
I/P
CONV.
IC9401
AI
PICTURE
IC9501
CAPTURE
IC1871
TEMP.
SENSOR
IC1872
TEMP.
SENSOR
IC1691
TEMP
.
SENSOR
WRL/READ
SCL1/SD
A1
SCL2/SD
A2
IC301
SCAN
CONV.
IC231
A/D
IC2311
A/D
IC3801
RS232C DRIVER
IC3802
MOUSE.
I/F
RX*/TX*
RXD/TXD
SCLK/SD
AT
A
IC4861
BUFFER
KEY1
PO
WER
98
KEY2
KEY3
K40A
K70A
K8T
K10C
R_R/C
POR
T
OUT
POR
T
OUT
IC9883
FLIPFLOP
POR
T
OUT
POR
T
OUT
POR
T
OUT
R_R/C
K70C
DSUB
RESET
SW
LAMP
B
ALLAST BO
ARD
K8X
K8L
K16I
K7B
CPU_RESET
K8D
CN66A
K66D
CN6A
See "P
ow
er supply &
protection circuit"
IC3803
MOUSE. DECODER
CPUD0-7
4-5
3,5
21-24
35-36
51-54
41-42
1,5
K16R
K30Q
K30P
K28A
IO_ENB
VIDEO
CONTR
OL
VIDEO
CONTR
OL
FA
N
CONTR
OL
Alw
a
ys A
v
ailab
le
Alw
a
ys A
v
ailab
le
CG/NET
CLAMP
ANALOG
CLAMP
IC501,IC1501, IC531,IC1531, IC561,IC1561
LCD DRIVER
PA
N
E
L_ENB
IIC_3 :
113,114
IIC_5 :
59,69
IIC_6 :
58,36
SCL3
SDA3
SCL6
SDA6
IC8081
EEPROM
IC8091
EEPROM
IC8001
DVI
RECEIVER
IC8071
B
US SW
IC8061
B
US SW
DV
I-D
DDC_CLK/D
AT
A
PC
DDC
HD_DDC
37-38
31-26
SCL*/SD
A*
System Controls
* Following information differs from the previous one for chassis No. MR3-XP5500, others are the same;
- IC7301 is deleted, and the pin functions of IC1801 are changed.