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Technics SH-DV250 Service Manual page 25

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SCHEMATIC DIAGRAM-2
W
R
2.7V
0.4V
Q602
O
Q
Q602-604
2SC3311ATA
INTERFACE
j
i
h
C618
0.01
k
0V
16
15
14
1
2
3
2.4V
1.5V
2.5V
R637
820
m
(JOY STICK)
R631
820
n
Q605,606
T
UN5211TX
LED DRIVE
Q605
Q606
4.9V
4.9V
0V
4.6V
0V
1.9V
:POSITIVE VOLTAGE LINE
D607
MA165TA
1.2V
0.5V
Q603
Q604
R658
0.5V
4.7K
0V
5V
1.5V
2.3V
2.3V
5V
13
12
11
10
9
IC602
M62457AFPE1
SPEANA AMP
4
5
6
7
8
2.5V
2.5V
2.5V
2.5V
C623
0.1
R638
R639
R640
R641
1K
1.2K
1.5K
1.8K
R633
R634
R635
R632
1.2K
1.5K
1.8K
1K
U
C
D
E
F
R668
2.2K
r
R612
1K
p
q
P
A
B
M
N
g
5.6V
V
S
5V
R642
S614
2.2K
(MULTI JOG)
1
2
3
R636
R666
2.2K
47K
R665
47K
Y
X
G
H
I
J
K
FW601B
13
CD REQ
12
CS
11
S CLK
10
S DATA
9
DECK REQ
B
To
MAIN
8
SYNC
CIRCUIT(FW601A)
7
FL2
on SCHEMATIC
6
FL1
DIAGRAM-9
5
SA DATA
4
SA CLK
3
CS/ REQ
2
D.GND
1
+B(5.6V)
FW602B
SP INPUT
1
A.GND
2
B
Z
DSP DIO
To
MAIN
3
a
DSP CK
CIRCUIT(FW602A)
4
b
DSP ACK
on SCHEMATIC
5
f
DSP RST
DIAGRAM-4
6
d
DSP SNS
7
e
DSP CS
8
L

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