Harman Kardon HK 990/230 Service Manual page 113

Chassis screwed transformer
8V
1.5A
230V
1
2
1
3
4
15.5V
3
5
0.5A
0V
15.5V
TO FUSE BOARD
0.5A
D7
GBU806
4 1 +11v
C72 C63
4.7mF/16V
4.7mF/16V
J11
R40
5
RF0.22R/0.5W
4
R41
3
RF0.22R/0.5W
2
1
5P2.5
D6
GBU806
4 1 +20VA
R55
100R
R42
C71
RF0.22R/0.5W 4.7mF/25V
R54
2K7
R61
2K7
C62
4.7mF/25V
R63
100R
-20VA
+5V
1 3
VIN VOUT
C32
100nF
IC1
C36
C35
220uF/10V
100nF
L7805CV
IC2
AMS1085CT
+3.3V
3 2
IN OUT
C82
100nF
R21
C75
412R/1%
100nF
R22
C38
680R/1%
10UF/50V
D2
30BQ040PbF
+VCC
Q2
TIP31C
3 2
VIN VOUT
1
ADJ
C51 R28
C45
100nF 220R
U6
10uF/50V
LM317T-ADJ
C27 R30
C50 C30
470uF/35V
100nF 2K4
10uF/50V
Low-ESR
C54 C37 R37
C40
100nF 2K4
470uF/35V
10uF/50V
Low-ESR
C57 R31
C55
100nF 220R
10uF/50V
Q7
1
TIP32C
ADJ
2 3
VIN VOUT
D4
30BQ040PbF
U9
-VSS
LM337T-ADJ
C39
220uF/10V
+15VA
C21
220uF/25V
E
TERMINAL ERTH
E
TERMINAL ERTH
C33
220uF/25V
-15VA
C77 C81
100nF 100nF