Harman Kardon DVD 22 - Audio DAC and SPDIF Interface Schematics

5
5
4
4
3
3
2
2
1
1
D D
C C
B B
A A
TO SCART
MUTE LOGIC
SPDIF Interface
VILmax=0.8V
VIHmin=2.0V
SPDIF
OPTICAL
SPDIF
COAX
RIGHT
LEFT
2 Channel AUDIO
0805 NPO capacitance: C44 C45 C46 C48 C50 C51
1288C
2.0
DVD280 AUDIO OUT
A2
814Thursday, March 25, 2004
Title
Size Document Number Rev
Date: Sheet
of
Harman Kardon, Northridge, California 91329, USA
FRONT_L1
FRONT_L
FRONT_R1
RESET_n
SPDIF#1
MUTECTRL
VOUTR
HW_MUTE
VCC
GND
FRONT_R
VOUTR
VOUTL
AMCLK
VOUTL
ADATA0
ASCLK
ML
MC
MD
MUTECTRL
ALRCLK
FRONT-R1
FRONT-L1
RESET_n
AAGND
A-12V
A+12V
A-12V
A+12V
AAGND
AAGND
A-12V
AAGND
VCC5V
AAGND
VCC5V
DGND
DGND
A-12V
A+12V
DGND
VCC5V
DGND
DGND
DGND
DGND
DGND
DGND
A+12VA-12V
AAGND AAGND
AAGND AAGND
AAGND
AAGND
AAGND
AAGND
AAGND
AAGND
AAGND
DAC+5V
C50
1nF
C53
100p
R24
1.78K 1%
C49
104
CB20
104
C44 100pF
C60
220uF/25V
R4A
4.7k
R46
10K
R39
220R
R25
7.50K 1%
R40
15K
L5
FB
C66
47UF/16V
C76
100U/10V
R19 4.75K 1%
C46 100pF
R37
110R
C33
47uF
16V
R41
10K
CB21
104
R32
330R
R35
4.75K 1%
U5
WM8728
1
15
20
19
11
7
18
17
6
4
3
5
16
12
8
2
13
9
14
10
LRCIN
CSBIWL
LATI2S
SCKDSD
VOUTL
DVDD
SDIDEM
MUTEB
DGND
MCLK
BCKIN
ZERO
MODE
VMID
VOUTR
DIN
VREFN
AGND
VREFP
AVDD
D10 1N4148
12
U6D
74HC14/SO
9 8
R28
10K
R45
2.2K
U6C
74HC14/SO
5 6
D12
1N4148
1 2
D13 1N4148
12
R5B
4.7k
CB19
104
R31
330R
R44
1K
U6A
74HC14/SO
1 2
R20
10K
R23
10K
Fiber Optic
TX Module
TOP VIEW
GND
VCC
VIN
DRIVER
IC
J8
SPDIF IR TX SHARP GP1FA550TZ
1
2
3
R29
680R
TOP VIEW
GND
CSY
SIG
J7
3
1
2
R10
0R
R8
0R
Q3
8550
3
2
1
R33
1.78K 1%
R
GND
L
TOP VIEW
J6
2
1
3
R21
680R
R18
10K
R43
100R
R22
330R
FB17
C48
680pF
R55
1K
C52
100p
CB13
104
R27 4.75K 1%
C61
220uF/25V
D11 1N4148
12
R34
7.50K 1%
C37
47uF
16V
C35
10U/10V
D17
4148
Q4
8550
3
2
1
CB11
104
C71
104
C42
104
V- V+
U3
LM833M
2
3
6
5
1
7
4 8
+5V
RN571 10RX4
12
34
56
78
12
34
56
78
C
BE
4.7K
3
2 1
Q2
SMT3
DTC343TK
ROHM
R30
330R
C45
1nF
R42
10K
+
C28
220uF/10V
R38
22R
+1.6V
C51
680pF
U6B
74HC14/SO
3 4
C36
47uF NP
10V
R36
150R
C67
47UF/16V
C
BE
4.7K
3
2 1
Q1
SMT3
DTC343TK
ROHM
D9
1N4148
12
+ C59
10uF/10V
C34
47uF NP
10V
R26
4.75K 1%
C39
104
TDO
RESET_n
RESET_n
A+12V
A-12V
VCC5V
SPDIF
ML
CLOCK/SCL
DATA/SDA
ALRCK
ASCLK
ADATA0
AMCLK
PRE_MUTE
DVD22 harman/kardon
Replacement of entire PCB assemblies or entire DVD22 loader is recommended. Schematics are for reference only.
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