Sony STR-KM3 - Page 45

STR-KM2/KM3
45
• IC Block Diagrams
IC2007 TC74VHC393FT (ELK) (DIGITAL AUDIO BOARD (3/4))
IC2033 TC7SH126FU (DIGITAL
AUDIO BOARD (2/4))
14 13 12 11 10 9 8
1 2 3 4 5 6 7
QA QB QC QD
A
CLEAR
VCC
QA QB QC QD
A
CLEAR
GND
IC2020 S-80929CNMC-G8ZT2G (DIGITAL AUDIO BOARD (2/4))
IC2034 S-80929CNMC-G8ZT2G (DIGITAL AUDIO BOARD (1/4))
IC2032 TC74VHC157FT (EKJ) (DIGITAL AUDIO BOARD (2/4))
IC2804 TC74VHC157FT (EKJ) (DIGITAL AUDIO BOARD (3/4))
VDD 2
OUT 1
VSS
3
+
–
VREF
CD5
NC
4
DELAY
CIRCUIT
SELECT
111
1A
2
3
4
5
6
7
INPUT
INPUT
OUTPUT
OUTPUT
1A
1B
1Y
2A
2B
2Y
1B
1Y
2A
2B
2Y
GND
8
VCC
STROBE
16
4A
15
14
13
11
12
11
10
INPUT
INPUT
OUTPUT
OUTPUT
G
4B
4Y
3A
4A
4B
4Y
3A
3B
9
3B
3Y
3Y
S
GATE
IN A
GND
VCC OUT-Y
1 2 3
45
IC2019 74AHC1G08GW-125 (DIGITAL AUDIO BOARD (2/4))
IN
IN
GND
1
2
3
5
4
VCC
OUT
Ver. 1.2