Read Harman Kardon HD 990 (serv.man7) Service Manual online
5
5
4
4
3
3
2
2
1
1
E
E
D
D
C
C
B
B
A
A
Servo DC
Servo DC
Differential output stage
Differential output stage
1%
1%
1%
1%
1%
1%
1%
1%
1%
1%
1%
1%
1%
1%
1%
1%
1%
1%
1%
1%
1%
1%
1%
1%
1%
1%
1%
1%
1%
1%
1%
1%
1%
1%
1%
1%
1%
1%
1%
1%
1%
I/V conversion
5604C
1.5
HD 990 Main board
Harman/Kardon
Custom
2
10
Tuesday, October 07, 2008
Title
Size
Document Number
Rev
Date:
Sheet
MUTE_1955
MOSI
DAC_SDATA_L
SCK
DAC_BITCLK
RST_1955#
DAC_MCLK_2
CS_1955_2#
DAC_LRCLK
DAC_SDATA_R
UNBAL_L
+12VA
+12VA
-12VA
-12VA
+12VA
+5VA
+5V
+12VA
-12VA
-12VA
+12VA
-12VA
+12VA
-12VA
+12VA
+12VA
+5V
C10
100nF
+
CE4
47uF/25V
1
2
R18
330R
R35
47K
-
+
U1A
OP275GS
2
3
4
8
1
R10
56R
Q15
2SC2406
3
2
1
Q3
2SC2406
3
2
1
R36
2K2
R14
47K
FB11
100R
K1A
RELAY JRC-19F
4
6
8
C13
100nF
R6
2K2
R30
100R
B
C
E
Q4
2SA1035
2
3
1
B
C
E
Q1
2SA1035
2
3
1
Q11
2SC2406
3
2
1
U3
AD1955
1
15
10
28
18
17
11
12
21
8
9
2
3
4
27
25
26
24
6
7
5
23
20
22
19
16
14
13
DVDD
AVDD
AGND
DGND
OUT L+
OUT L-
OUT R+
OUT R-
ZERO_L
DSD_RDATA
DSD_PHASE
LRCLK/EF_WCLK
BCLK/EF_BCLK
SDATA/EF_LDATA
MCK
CLATCH
CCLK
CDATA
DSD_SCLK
DSD_LDATA
EF_RDATA
RST
ZERO_R
MUTE
AGND
FILTB
IREF
FILTR
C168
680pF
R20
47K
R13
330R
Q16
2SC2406
3
2
1
C1
100nF
R19
330R
R31
56R
R4
680R
C8
100nF
+
CE3
47uF/25V
1
2
B
C
E
Q6
2SA1035
2
3
1
B
C
E
Q2
2SA1035
2
3
1
R7
330R
FB12
100R
B
C
E
Q12
2SA1035
2
3
1
Q8
2SC2406
3
2
1
C167
100nF
C6
100nF
C14
100nF
+
CE60
100uF/10V
1
2
B
C
E
Q10
2SA1035
2
3
1
Q5
2SC2406
3
2
1
R28
330R
C15
100nF
R41
47K
+
CE59
100uF/10V
1
2
R40
330R
-
+
U4A
TL072
2
3
4
8
1
R25
680R
K1B
RELAY JRC-19F
13
9
11
R34
330R
-
+
U1B
OP275GS
6
5
4
8
7
C169
680pF
R3
15K
R12
510R
R29
2K7
R33
510R
R5
820R
R8
2K7
C183
3.3nF
B
C
E
Q9
2SA1035
2
3
1
JP2
XLR male
1
3
2
G
R11
2K7
+
CE1
47uF/25V
1
2
+
CE5
47uF/25V
1
2
R37
680R
C170
2.2nF
C171
680pF
C2
100nF
R32
2K7
R1
330R
JP1
AV2-8.4-1G
2
1
3
2
1
3
Q7
2SC2406
3
2
1
-
+
U2B
OP2134UA
6
5
4
8
7
-
+
U4B
TL072
6
5
4
8
7
R15
2K2
C172
2.2nF
C184
3.3nF
R24
15K
R21
2K7
C21
100nF
R38
47K
R16
680R
R39
330R
R9
100R
C173
100nF
R2
330R
R26
820R
R22
330R
C9
100nF
C16
100nF
B
C
E
Q14
2SA1035
2
3
1
+
CE2
47uF/25V
1
2
-
+
U2A
OP2134UA
2
3
4
8
1
R27
2K2
C11
100nF
R17
47K
Q13
2SC2406
3
2
1
R23
330R
C174
680pF
+
CE6
47uF/25V
1
2
harman/kardon
HD 990/230 Service Manual
Page 35 of 46
Click on the first or last page to see other HD 990 (serv.man7) service manuals if exist.