Sanyo DC-PT70 - IC Block Diagrams: Various Integrated Circuits; IC442 TA8223 K (Power Amp)

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IC BLOCK DIAGRAM & DESCRIPTION
IC442 TA8223K(Power Amp.) IC806 74VHCT08AMTCX(AND)
114
A
0
2
B
0
3
O
0
4
A
1
5
B
1
6
O
1
7
GND
13
A
2
12
B
2
11
O
2
10
A
3
9
B
3
8
O
3
V CC
A
L
L
H
H
B
L
H
L
H
Pin Names
A
n' B N
O N
Description
Inputs
Outputs
O
L
L
L
H
IC401 KIA7805API(Regulator)
123
1. INPUT
2. COMMON
3. OUTPUT
IC881 KRX101U(Switching)
Q1
Q2
1
5
2 3
4
IC602,801 S524A40X21-SCT0(EEPROM)
1
5
6
7
2
3
4
8
Vcc
GND
WP
SCL
SDA
A
2
A 1
A 0
START
STOP
LOGIC
LOAD
DEVICE
ADDRESS
COMPARATOR
COMP
LOAD INC
EN
SERIAL
CONTROL
LOGIC
DATA WORD
ADDR/COUNTER
Y DEC
H,V. PUMP/TIMING
E PROM
2
SERIAL MUX
DATA RECOVERY
X DEC
D OUT /ACK
LOGIC
D IN
D OUT
R/W