1 8
Two Channel Amplifier
Harman Kardon
SIGNATURE 1.5
INTEGRATED CIRCUITS
1
2
3
4
8
7
6
5
OUTPUT A
INVERTING
INPUT A
NON-
INVERTING
INPUT A
GND
+V
S
OUTPUT B
INVERTING
INPUT B
NON-
INVERTING
INPUT B
U2
- LM556CN DUAL TIMER
A001-2009-0
1
5
2
6
3
7
4
14
10
13
9
12
8
11
COMP
COMP
COMP
COMP
V
CC
GND
DISCHARGE
DISCHARGE
THRESHOLD
THRESHOLD
CONTROL VOL
TAGE
CONTROL VOL
TA
GE
RESET
RESET
OUTPUT
OUTPUT
TRIGGER
TRIGGER
U1
- LM393N DUAL COMPARATOR
A001-0005-0
FLIP FLOP
FLIP FLOP