Read Harman Kardon PA 5800 (serv.man2) Service Manual online
2 4
Multichannel Power Amplifier
Harman Kardon
PA5800 / SIGNATURE 2.1
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
PA5800: U254
Signature 2.1: 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
TAGE
RESET
RESET
OUTPUT
OUTPUT
TRIGGER
TRIGGER
Signature 2.1: U1
LM393N DUAL COMARATOR
A001-0005-0
FLIP FLOP
FLIP FLOP
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