-39-
Chassis Block Diagrams
IC801
SUB CPU
CHO_RXD
CHO_TXD
P_F
AIL
5V_SW
LAMP_SW1
BALAST_A
C1
LAMP_BST_SW1
PO
WER_SW
LAMP_SW
BALAST_A
C
S2.5V
S6V
IC6671
D6607
S3.3V
IC6631
D6608
5V
IC6681
D6614
3.3V
IC6651
D6613
1.8V
IC2452
D2451
D3103
D3102
S3.3V
AD
IC6641
D6609
D6601
9V
15.5V
IC6621
5V1
IC3103
IC3102
D6611
S1.5V
D6602
11
2
14,15
5
5VMCI
D65B
12V
IC1281
D1281
R2561
D2561
S15.5V
IC65A
R2562/R2563/R2564
D2562
R6602
Q691
S5V
5V
A
U
DIO
D6603
R6606
5VD
LINE FIL
TER
BO
ARD
SW902
THERMAL SWITCH
LAMP CO
VER
SWITCH
LAMP
B
ALLAST
14
5
5
4
1
CB2
K8H
13
3
1
K8S
K6D
CB1
K6A
K
6B
K6B
K3W
LAMP
AC
CORD
SW901
5VD
V
I
S5V
S3.3V
5VD
V
I
S5V
S3.3V
39 40
35 36
K3U
-5V
A
V
S-5V
S5
VAV
S5V
21 22
K10W
K10U
25 26
5V
AUDO
5V
AUDO
3 4
31 32
S-5V
-5V
21 22
K6R
K8R
AV
PO
WER
DV
I
MAIN
IC1881
BUFFER
TSW611
Q661
IC621
P.F.CONTROL
<FA5502>
6
5
1
8
4
3
2
9
11
7
8
10
2
10
1
1
4
T651
D652
D651
D653
IC651
Q651
D654
PC641
PC642
ERR
OR
AMP
Q662
Po
w
er-On:H
Po
w
er-On:H
Po
we
r-On:H
Power-On:H
Power-On:H
Po
w
er-On:H
P-F
ail:H
LAMP_DET
(P
ow
er-On:L)
LAMP_SW
(P
ow
er-On:L)
P-F
ail:L
PC643
IC631
POWER OSC.
<STR-Z2156>
Fe
edbac
k
S6V
15.5V
S-5V
5V_SW
LAMP_BST_SW
IC4891
FAN CONTR
OL
CIRCUIT
S6V
S15.5V
15.5V
S-5V
1 2
3
5 6 7
9
IC2801
TEMP
. SENSOR 1
<LM76CHMX>
IC2831
TEMP
. SENSOR 2
<LM76CHMX>
IC2861
TEMP
. SENSOR 3
<LM76CHMX>
IC1851
D/A
<M62320>
12
7
1,2
2,3
13
9
11
12
8
3
77
21
3
76
48
1
3
39
98.99
80,81
17
H8_SCL1 H8_SD
A1
H8_SCL4 H8_SD
A4
H8_SCL4_5 H8_SD
A
4_5
Q1826/Q1827
H8_SCL1_5 H8_SD
A
1_5
Q1821/Q1822
IC9882
INVER
TER
11
12
Power supply & protection circuit