Yamaha DSP-A595a Service Manual page 38

A B
Q Q
3 7 6 3 1 5 1 5 0
PRINTED CIRCUIT BOARD (Foil side)
1
TO: INPUT (1)
#3
2
41 60
40 61
LC875164A-5K20
21 80
20 1
3
T E
L 1 3 9 4 2 2 9 6 5 1 3
51 80
81
6 50
YSS918D-F
100
31
30 1
23
22
YM3436DK
12
11
4
5
Semiconductor Location
Ref. No. Location Ref. No. Location
D1 F3 IC1 B3
D2 F3 IC2 E3
IC3 B4
D3 G4
IC4 A3
D4 G4
D5 G4 IC5 A3
D6 G4 IC6 C4
5
D7 G4 IC7 D4
D8 G4 IC8 C3
D9 F4 IC9 C3
D10 G4 IC10 D3
w w w
D11 G4 IC11 D3
D12 G4 IC13 C3
D13 D4 IC14 B3
D14 D4 IC15 B3
D15 D4
.
D16 D4
D17 D4
6
C
P. C. B. DSP
TO: INPUT (3)
#1
33
34
23 33
22 34
13 24
AK4526A-VQ
AK4320
44
1
12 44
11 1 12 1
5
Point
Ref. No. Location Pin 13 of IC3
Q1 H4
V : 2V/div H : 50nsec/div
Q2 G4
AC range 1 : 1probe
Q3 G4
Q4 H3
Q5 G3
Q6 G3
Q7 G3
Q8 G3
Q9 G3
0V
Q10 G3
Q11 G3
Q12 H3
x a o
Q13 G3
y
Q14 D4
i
2V SAMPLE
D E
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8
TO: INPUT (1)
#6
Q Q
3 7 6 3
6
Point
Pin 13 of IC14
V : 2V/div
AC range
0V
u 1 6 3
.
50ns 2V
E-34/J-32
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F
2 4
9 9 8
P. C. B. DSP
1 5 1 5 0 8 9 2 4
HD74HC02FP
14 8
1 7
H : 50nsec/div
1 : 1probe
m
c o
SAMPLE 50ns
G H
DSP-A595a
2
9 9
9 8 2 9 9
E-35/J-33