Yamaha DSP-A5 Service Manual page 39

A B
Q Q
3 7 6 3 1 5 1 5 0
PRINTED CIRCUIT BOARD (Foil side)
1
TO: INPUT (1)
#3
#3
#3
2
3
T E
L 1 3 9 4 2 2 9 6 5 1 3
51 80
50 81
YSS918D-F
31 100
30 1
15 28
YSD917
9
14 1
4
5
Semiconductor Location
Ref. No. Location Ref. No. Location
D1 F3 IC1 B3
D2 F3 IC2 F3
D4 D4 IC3 B4
D5 G4 IC4 A3
5 D6 G4 IC5 A3
IC6 C4
D7 G4
IC7 D4
D8 G4
D9 G4 IC8 C3
w w w
D10 G4 IC9 C3
D11 G4 IC10 D3
D12 G4 IC11 D3
D14 D4 IC13 C3
D15 D4 IC15 B3
.
D16 D4
D17 D4
D150 H4
D151 G4
D152 H4
6
C
P. C. B. DSP
TO: INPUT (4)
#1
#6
#1
#1 #6
23 33
13 24
22 34
AK4526A-VQ
39
AK4324-VF-E2
44
12
11 1
12 1
6
5
Point
Ref. No. Location
Pin 9 of IC3
Q1 H4
V : 2V/div H : 50nsec/div
Q2 H4
DC range 1 : 1 probe
Q3 H4
Q4 H2
Q5 H3
0V
Q6 H3
Q7 H3
Q8 G3
Q9 G3
Q10 G3
Q11 x G3 a o
y
Q12 H3
Q13 H3
i
Q14 D4
2V SAMPLE
D E
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8
TO: INPUT (1)
#6
Q Q
3 7 6 3
6
Point
Pin 39 of IC6
V : 2V/div H : 50nsec/div
DC range 1 : 1 probe
0V
u 1 6 3
.
2V
50ns
E-40/J-38
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F
2 4
9 9 8
P. C. B. DSP
1 5 1 5 0 8 9 2 4
HD74HC02FPEL
14 8
1 7
m
c o
SAMPLE 50ns
G H
DSP-A5
2
9 9
9 8 2 9 9
E-41/J-39