Yamaha DSP-A5 Service Manual page 36

A B
PRINTED CIRCUIT BOARD (Foil side)
1
TO: INPUT (1)
#3
#3
#3
2
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
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 G3
Q12 H3
Q13 H3
Q14 D4
2V SAMPLE
D E
TO: INPUT (1)
#6
6
Point
Pin 39 of IC6
V : 2V/div H : 50nsec/div
DC range 1 : 1 probe
0V
2V
50ns
E-40/J-38
F G
P. C. B. DSP
HD74HC02FPEL
14 8
1 7
SAMPLE 50ns
H
DSP-A5
E-41/J-39