Sanyo DC-TS780 Service Manual page 25

IC BLOCK DIAGRAM & DESCRIPTION
IC471,491 NJM2058V(Op. Amp.)
A OUTPUT 1
A
2
A INPUT
A +INPUT 3
V+ 4
5
B+INPUT
6
B INPUT
B
7
B OUTPUT
IC802 PST3627U(Reset)
V 2
DD
Vref
GND 1
PIN No.
GND 1 4 OUT
1
2
3
V C
2 3
DD D
4
IC412 KA7805R(Regulator)
INPUT 1
CURRENT
GENERATOR
STARTING REFERENCE
CIRCUIT VOLTAGE
14
D OUTPUT
D
D INPUT
13
12 D+INPUT
V
11
10 C+INPUT
9 C INPUT
C
8 C OUTPUT
R
D
3
C
D
PIN NAME FUNCTIONS
GND GND Pin
V V Pin / Voltage Detect Pin
DD DD
C Capacitor Connect Pin with Delay
D
OUT Reset Signal Output Pin
SERIES
3
PASS
ELEMENT
SOA
PROTECTION
ERROR
AMPLIFIER
THERMAL
PROTECTION
2
IC801 AT24C02N-10SI(EEPROM)
8
Vcc
GND 4
WP
7
START
STOP
SCL 6
LOGIC
SDA 5
DEVICE
ADDRESS
COMPARATOR
A 3
2
2
A
1
1
A
0
D
IN
IC850 PQ2L2182MS(Regulator)
1
4 OUT
3
IC450 KIA4558F(Op. Amp.)
OUT A
1
-IN A
2
+IN A
3
V
4
EE
OUTPUT
IC462,472,482 LM4766(Audio Power Amp.)
15
14
13
12
11
10
9
GND
8
7
6
5
4
3
2
1
- 24 -
SERIAL
EN
H,V. PUMP/TIMING
CONTROL
LOGIC
LOAD
COMP
DATA RECOVERY
LOAD INC
R/W
DATA WORD
ADDR/COUNTER
Y DEC
D
OUT
CONTROL
2
V
8
CC
A
OUT B
7
- +
B
-IN B
6
+ -
+IN B
5
-In A 7
Vcc B
Amp A
NC
+ In B
+In A 8
- In B
Mute B
GND B
NC
+ In A
- In A
Mute A
+In B 13
GND A
Amp B
V
EE
Out A
-In B 12
Vcc A
Out B
6 11
Mute Mute
A B
2
E PROM
SERIAL MUX
D /ACK
OUT
LOGIC
5
4
3 Out A
1 Out B