Read Harman Kardon HK 990 Service Manual online
R29
10R
10R
R69
10R
10R
R81
7.5K1%
7.5K1%
R4
47R1%
47R1%
TP4
TESTPOINT
TESTPOINT
R131
39K
39K
1
2
3
Q35
2SA1312
2SA1312
1
2
3
Q44
2SA1312
2SA1312
R151
1K
1K
R63
1K1%
1K1%
1
2
3
Q54
2SA1312
2SA1312
R118
120R1%
120R1%
2
3
1
Q8
2SC3324
2SC3324
R85
330R1%
330R1%
R120
120R1%
120R1%
2
3
1
Q60
2SC3324
2SC3324
R121
470K
1
2
3
Q43
2SA1312
R104
1.5K1%
1.5K1%
C3
10nF
10nF
R19
4K7 1%
4K7 1%
R18
4K7 1%
4K7 1%
R103
2.7K1%
2.7K1%
R25
560R1%
4
6
8
K1A
JRC-27F1005-M-555
JRC-27F1005-M-555
+
C69
10uF/50V
10uF/50V
R11
10R1%
10R1%
R107
2.7K1%
1
2
3
Q59
2SA1312
2SA1312
R80
330R1%
330R1%
C60
1.8nFM
R12
22R1%
22R1%
R83
7.5K1%
7.5K1%
R116
NC
D10
BZV55/C12
BZV55/C12
R64
1K1%
1K1%
R102
2.7K1%
2.7K1%
R65
82K
R142
2K2
2K2
C68
1uF
1uF
+
C12
220uF/16V
220uF/16V
C70
1uF
1uF
+
C74
330uF/25V
330uF/25V
D6
BAS85
BAS85
R84
330R1%
330R1%
R28
560R1%
R126
0R
0R
+
C18
220uF/16V
220uF/16V
D2
LED rouge
LED rouge
C56
1uF
1uF
C36
1pF
1pF
R10
22R1%
22R1%
C21
100nF
+
C11
10uF/50V
10uF/50V
R133
330R
330R
C63
2.7nF
2.7nF
R13
10R1%
10R1%
C50
4.7nFM
4.7nFM
R62
10R
10R
R141
DNE
DNE
2
3
1
Q46
2SC3324
2SC3324
2
3
1
Q62
2sc3265
2sc3265
C40
10pF
10pF
1
2
3
Q7
2SA1312
2SA1312
2
3
1
Q3
2SC3324
2SC3324
R144
0
0
R145
39R
39R
R106
2.7K1%
2.7K1%
1
2
3
Q36
2SA1312
2SA1312
C42
10pF
10pF
R68
1K1%
1K1%
R66
120K
+
C10
10uF/50V
R143
DNE
DNE
R140
39R
39R
C54
1uF
1uF
1
2
3
Q4
2SA1312
2SA1312
C32
330pF
330pF
R82
47R
47R
R67
1K1%
1K1%
R79
330R1%
2
3
1
Q53
2SC3324
2SC3324
R26
10R
10R
C41
22uF/ELCO
+
C55
10uF/50V
10uF/50V
R117
470R1%
+
C45
330uF/25V
330uF/25V
C22
100nF
2
3
1
Q37
2SC3324
2SC3324
R3
10R1%
10R1%
2
3
1
Q38
2SC3324
+
C17
220uF/16V
220uF/16V
D8
BAS85
BAS85
R153
330R
330R
1
2
3
Q49
2SA1312
2SA1312
C59
180pFM
TP6
TESTPOINT
TESTPOINT
TP10
TESTPOINT
TESTPOINT
D4
BZV55/C12
BZV55/C12
R128
1M2
1M2
+
C73
330uF/25V
330uF/25V
R109
6.8K1%
6.8K1%
2
3
1
Q50
2SC3324
2SC3324
1
2
3
Q56
2SA1298
2SA1298
R127
1M2
1M2
R119
470R1%
R105
1K1%
1K1%
R27
3K9
3K9
+
C46
330uF/25V
330uF/25V
2
3
1
Q45
2SC3324
2SC3324
+
C9
220uF/16V
220uF/16V
R129
0R
0R
R149
6.8K1%
C49
680PFM
680PFM
+15V
-15V
+12VAL
-12VAL
-12VAL
+12VAL
PHONO_IN_L
IN_MM_L
IN_MC_L
1mA
1mA
R32
100K
100K
C29
100uF16V
100uF16V
N1210X226KCTx5R+-5%
C64
10uF16V
C77
470uF16V
470uF16V
C34
10uF16V
(NPO)
C78
NC
C80
NC
C87
100nF
100nF
C85
100nF
100nF
+
C89
10uF/50V
+
C88
10uF/50V
C86
100nF
100nF
C82
100nF
+
C90
220uF/25V
220uF/25V
+
C91
220uF/25V
220uF/25V
R34
220R
220R
R36
2K4
2K4
R37
2K4
2K4
R35
220R
220R
+15V
-15V
+18VA
-18VA
V IN
2
ADJ
1
V OUT
3
IC3
LM337IMP
LM337IMP
V IN
3
ADJ
1
V OUT
2
IC2
LM317EMP
LM317EMP
121
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