– 49 –
1
2
3
6
9
10
16
15
14
11
AMP2
THERMAL SHUT
DOWN AND
CURRENT LIMITER
7
8
AMP1
AMP3
+VIN2
–VIN2
OUT2
OUT1
–VIN1
+VIN1
VEE
VEE
+VIN3
–VIN3
OUT3
NC
NC
VCC
• Main (1/2) section
IC503 CXA1291P
ON/OFF
CURRENT
LIMITER
VREF
OVERHEAT
PROTECT
RESET
GENERATOR
ON/OFF
3
6
9
2
5
8
1
4
7
10
ERROR
AMP
ERROR
AMP
VIN1
VO1
CN
EN1
GND
RES
CD
EN2
VO2
VIN2
IC506 LA5616
• Main (2/2) section
24
0
D
R
CK
23
0
D
R
CK
22
0
D
R
CK
21
0
D
R
CK
20
0
D
R
CK
19
0
D
R
CK
18
0
D
R
CK
17
0
D
R
CK
16
0
D
R
CK
15
0
D
R
CK
14
0
D
R
CK
13
4
5
6
7
8
9
10
11
12
0
D
R
CK
1
D
R
CK
1
D
R
CK
1
D
R
CK
1
D
R
CK
1
D
R
CK
1
D
R
CK
1
D
R
CK
1
D
R
CK
1
D
R
CK
1
D
R
CK
1
D
R
CK
1
D
R
CK
D
1
R
CK
D
1
0
0
R
CK
D
R
CK
D
R
CK
1
2
3
D
1
R
CK
D
1
0
0
R
CK
D
R
CK
D
R
CK
QC
QD
QE
QF
QG
QH
QI
QJ
QK
QL
QM
QN
QA
QB
VCC
D
ATA
OE
LT
RST
CLK
GND
SQP
QO
QP
IC702 M66310FP
• Display section