14
D
VR 50 - Re
v
. 011105-2
Components having special characteristics or critical for safety are
identifi ed by
mark and must be replaced with components
specifi ed by the manufacturer.
Schematic diagram is subject to change without notice.
1
2
3
4
5
A
B
C
D
E
F
Schematic diagram - Audio board 4/10
14
+3.3VA
+3.3VD
+3.3VD
+3.3VD
+3.3VA
+3.3V
CLK_SEL
GND
MCLK
HI_MCLK
U902A
74HC74
D
2
CLK
3
Q
5
Q
6
S
4
R
1
C905
100nF
U901A
74HC00
3
1
2
X901
Not Mounted
R907
Not Mounted
R901
1M
C901
10pF
U901E
74HC00
14
7
R908
0R0
U901B
74HC00
6
4
5
X902
24.576 MHz
R902
220R
C902
10pF
L901
BEAD
R905
33R
U902C
74HC74
Vcc
14
Vss
7
U902B
74HC74
D
12
CLK
11
Q
9
Q
8
R
13
S
10
U901C
74HC00
8
9
10
R903
1M
C903
10pF
L902
BEAD
R906
51R
R904
220R
C906
1uF/50V
C904
10pF
U901D
74HC00
11
12
13
C907
100nF