Harman Kardon HS 100, Service Manual

Page: 63 / 71

5
5
4
4
3
3
2
2
1
1
D D
C C
B B
A A
A U TO SWITCH LOGIC
DETECT LOGIC
W h e n the HP insert into the HP jack, the detect pin unconnect to
t h e channel R, and the detect level is 3.3V, amplifier will be
muted.
W h e n the HP doesn't insert into the HP jack, the detect pin will
c o n n e ct to the channel R, and the detect level is 0V, amplifier
will work normally.
1239C-PV1 3.43
H S 1 0 0 M A I N B O ARD 050725
B
11 24
Tuesday, November 22, 2005
Title
Size Document Number Rev
Date: Sheet of
Harman Kardon, Northridge, California 91329, USA
PHONE_R
PHONE_L
HPV5
+A12V
3R8
1M
3R5
20k 1%
3C2 1UF
3R9
680R
3C7
220uF/16V
C
B E
4.7K
3
2 1
Q27
SMT3
DTC343TK
ROHM
C
B E
4.7K
3
2 1
Q19
SMT3
DTC343TK
ROHM
CB90
104
3C3
100uF/10V
EC45
47uF/16V
Q18
2SK3018
2
1
3
3R6
20k 1%
ESD2
AVR-M1608C270M*ABB
CN6
TO PHONEJACK STEREO SW
1
2
3
4
5
FB8
FB 50R
3R3
680R
3R10
20k 1%
3C1 1UF
CB84
104
R120 3k
3C6
220uF/16V
R81 3k
R5
10k 1%
3R7 100k
R136 0
U13
78L05
3 1
2
IN OUT
GND
CB92
104
3R2
10R
3U2
LM4880M
1
2
3
4 5
6
7
8
AOUT
AIN
BYP
GND SON
BIN
BOUT
VDD
3R1
20k 1%
3R4
10R
R6
10k 1%
ESD1
AVR-M1608C270M*ABB
CB89
104
DETECT
HP_R
HP_L
AMUTE
63
HS100
Integrated Home Theater System
harman/kardon