Harman Kardon HS 250 - Page 58

5
5
4
4
3
3
2
2
1
1
D D
C C
B B
A A
AMBER
BLUE
AMBER
BLUE
3519C 1.3
HS250 FRONT PANEL: 2line VFD BOARD 070809
A3
18 21Tuesday, August 21, 2007
Title
Size Document Number Rev
Date: Sheet
of
STANDBY
RB5
RB4
RA0
RB6
AC_1
+40V
AC_2
A+5V5VON +12V
+40V
DC_GND
5VON
+12V
A+5V
A+5V
A+5V5VON +12V A+5V
V606 install hole
1 2 3 4 5 6 7 8 9 10 11
GND GND GND GND GND GND GND GND GND GND GND
R643 10k
LED602
1
2
3
C624 105
R653
200R
EC606
100uF/63V
R610
4.7K
R639
10K
LED601
1
2
3
R644 2.2k
V614
G
D602 1N4148
K601 Standby
1
34
2
R641
100R
EC605 100uF/25V
DZ601
ZENER 6.2V 0.4W
R614
200R
R615
510R
D603 1N4148
C610
47P
C629
104
C
BE
3
2 1
Q603
8550
C634
104
R642 10k
EC617 10uF/16V
V607 install hole
1 2 3 4 5 6 7 8 9 10 11
GND GND GND GND GND GND GND GND GND GND GND
V602 install hole
1 2 3 4 5 6 7 8 9 10 11
GND GND GND GND GND GND GND GND GND GND GND
V610
G
V604
G
EC603 33uF/10V
K602 Open/close
1
34
2
R609
4.7K
V603 install hole
1 2 3 4 5 6 7 8 9 10 11
GND GND GND GND GND GND GND GND GND GND GND
V605
G
L601
330UH
1 2
R640 10k
V609 install hole
1 2 3 4 5 6 7 8 9 10 11
GND GND GND GND GND GND GND GND GND GND GND
R660
10K
V615
G
C
BE
3
2 1
Q602
8050
EC608 47uF/50V
U604 MC34063ADG/MC34063EBD
1
2
3
45
6
7
8
SWC
SWE
TCAP
GNDCOMP
VCC
PK
DC
EC607 47uF/50V
R661
3.3R
R648
510R
R638
100R
R654
3.3R
U605 LM9022
1
2
3
4 5
6
7
8
SHUTDOWN
BYPASS
+IN
-IN VO1
VDD
GND
VO2
D606
1N5819 SS14
12
R647
200R
R666
62K 1%
C625
123
V601 install hole
1 2 3 4 5 6 7 8 9 10 11
GND GND GND GND GND GND GND GND GND GND GND
V608 install hole
1 2 3 4 5 6 7 8 9 10 11
GND GND GND GND GND GND GND GND GND GND GND
R652
2K 1%
C630
104
harman/kardon
HS 250/230 Service Manual
Page 58 of 60