P R E L I M I N A R Y R E L E A S E
1 2 3
Component Audio System
Harman Kardon
Festival 60/80
Festival SUBWOOFER UNIT BLOCK DIAGRAM (80 US & European)
SUBWOOFER-UNIT-304-10
FESTIVAL-80-US-EU
BLOCK DIAGRAM
-
+-
+
-
+
-
+
IC105(2/2)
T filter
R129 R131 C125
HPFfilter
IC110(1/2)
LPFfilter
IC103(2/2)
HPFfilter
IC109(1/2)
HPFfilter
VR181
Bass Volume
IC105(1/2)
T filter
R130 R132 C126
HPFfilter
IC103(1/2)
HPFfilter
IC108(2/2)
T filter
R159 R161 C155
HPFfilter
IC106(2/2)
HPFfilter
IC108(1/2)
T filter
R160 R162 C156
HPFfilter
IC106(1/2)
HPFfilter
D306
Protector
AC120V 60Hz or
AC230V 50Hz
ON/OFF
Power
Center
Surround
Front R
Front L
(Control signal)
DC+10V
Rear Speakers
Common
Analog GND
8P DIN
connector
1
2
3
4
5
6
7
GND
Power
indicator
Center Speaker
Sub power
(Control signal)
Power amp
Mute
Protector
R ch Speakers
L ch Speaker
Mute
Power amp
Power amp
Mute
Power amp
Mute
Power amp
Mute
Protector
Bass Speaker
All ch MIX amp
IC109(2/2)
NJM4558DD
IC110(2/2)
NJM4558DD
NJM4558DD
NJM4558DD
Buffer
IC104(2/2)
Buffer
IC104(1/2)
Buffer
IC107(2/2)
Buffer
IC107(1/2)
+/- 15V Reg.
IC301 302
NJM78M15FA
NJM79M15FA
Input Buffer
IC101 102
NJM4558DD
DC Protector
H
G
F
F
G
H
E
D
C
B
A
A
B
C
D
E
J
I
L
M
K
O
O
P
P
L
M
I
J
K
1
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