Harman Kardon Digital Lounge HS 250 Service Manual page 54

5
harman/kardon
D
R614
200R
C
B
+12V R654
3.3R
R652
2K 1%
A
5
4
K602 Open/close
2 1
4 3
K601 Standby
D602 1N4148
2 1
RB6
RA0
4 3
RB4
D603 1N4148
RB5
STANDBY
R609 5VON R610
4.7K 4.7K
C
Q602 Q603
8050 8550
B E
R647 R615 R648
200R 510R 510R
LED601 LED602
L601
330UH
1 2
R653 U604 MC34063ADG/MC34063EBD
200R
8 1
DC SWC
7 2
PK SWE
R661
3.3R
6 3
VCC TCAP
D606
C610
1N5819 SS14
47P
5 4
COMP GND
R666 EC606
62K 1% 100uF/63V
4
3
V601 install hole
V607 install hole
V604 V605
5VON
5VON +12V
C634 C630
104 104
U605
1
SHUTDOWN
A+5V
C624 105
2
BYPASS
3
+IN
4
-IN
C625
123
+40V
DC_GND
3
2
V602 install hole V603 install hole V606 install hole
V608 install hole V609 install hole
V610 V614 V615
+12V A+5V A+5V
A+5V
C629
104
LM9022
EC608 47uF/50V
8
VO2
7
GND
DZ601
6
VDD A+5V
ZENER 6.2V 0.4W
5
VO1
EC607 47uF/50V
Title
Size
A3
Date:
2
1
Digital Lounge HS 250/230 Service Manual
AC_1
R638 R639
100R 10K
+40V
R641 R660
100R 10K
AC_2
HS250 FRONT PANEL: 2line VFD BOARD 070809
Document Number Rev
3519C 1.3
Monday, December 03, 2007 Sheet 18 of 21
1
Page 54 of 56
D
C
B
A