-44-
Chassis Block Diagrams
IC801
CPU
IC_RESET
C_SWIN
S/SW
A
U_SW1
A
U_SW2
MUTE
R/C2
R_C
PC1_PC2-SW
FA
N
_LOCK
FA
N_LOCK1
FA
N_LOCK2
LAMP_REP
READ
Y
LENS_T
OP
LENS/BO
T
TURBO_SW
COMP_SW
S_SWIN
A_SW1
A_SW2
A_MUTE
CG1/CG2
AV
/CG
AV
/C
G1
CG/HD_SW
HD_SW1
RC1_SW
R_C1
RC2_SW
PO
WER
KEY1
KEY2
KEY3
LAMP_DET
FAN_SW
FA
N
_D
R
IVE
LAMP_SW
WRL_CPU
FA
N
_C
O
NT1
FA
N
_C
O
NT2
FA
N
_C
O
NT3
READ_CPU
OPT1
OPT2
R_C
P-F
AIL
P-FAIL
IICSCL
IICSD
A
SCL2
SD
A2
SD
A3
SCL3
PO
WER DC
BO
ARD
CONTR
OL
BO
ARD
LAMP BALLAST
BO
ARD
LENS
SENSOR
BRIGHT
LED
BO
ARD
Q5061
Q5051
IC5001
A
UDIO-SW
IC3001
RGB-SW
IC808
SER
VICE MEMOR
Y
IC4881
FAN CONTR
OL
IC3021
SYNC-SW
IC031
A
UDIO-OUT
IC3022
SYNC-SW
IC8441
SYNC-SW
RC
RECEIVER
RC
RECEIVER
IC2091
IC4891
COMPONENT
Q3021
Q1851
Q5168
IC815
Q1852
IC1851
RC1 PC2
VIDEO
A
U_SW 1(10)
L
H
L
A
U_SW2 (9)
L
L
H
Q031
Mute:
L
Mute:
H
PC:
L
S-Video-In:
L
Component-In:
L
Br
ight-On:
L
Bottom:
L
To
p:
L
LED-On:
L
Fan Error
: H
Po
w
er
-O
n: L
Po
w
er
-O
n: H
(LED Dr
iv
e)
Lamp Error
: H
Lamp-On:
H
Po
w
er
-O
n: H
Po
w
er
-O
n: H
Po
w
er
Fa
il:
L
Po
w
er
Fa
il:
L
RC1:
L
RC2:
L
PC1:
L, PC2:
H
AV
,P
C
-Analog:
L
FR
ONT RC BO
ARD
AU
D
IO
BO
ARD
COM BO
ARD
AV
BO
ARD
MAIN BO
ARD
FA
N
s
(FN901,FN902,FN903)
Q4807
IC1801
I/O EXPANDER
<M66500>
OPTION RESIST
O
RS
2
K8F
K
8Q
K8Q
K8M
K
8P
K8D
K8D
K8B
K8G
K8R
17
11
7
1-3
8-9
1
4
51
,3
2
2
10
18
10
9
16
20
6
27
8
2
2
22
17
9
1
5
3
6
2
1,7
25
52
51
50
49
5
4
18
17
28
15
13
61
WA
R
N
ING
59
15
14
13
31
30
60
26
2
12-14
20
5
118
119
120
123
137
138
48
43
121
122
51
52
29
30
6
5
3
2
IC9881
IC9882
9,10
10
23
113
114
125
143
Fr
om
th
e po
w
er f
ail
detection diodes
.
To
the ICs
, controlled
by
IIC b
us
.
CHO_TXD_L
System controls
Содержание PLC-XT11
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