Yamaha DSP-AX1/RX-V1 Service Manual page 68

A B
DSP-AX1/RX-V1
PRINTED CIRCUIT BOARD (Foil side)
1
Semiconductor Location
Ref. No. Location
D12 C5
D14 C5
D15 C5
D17 C5
DSP P. C. B. ( 1 )
IC1 C3
IC2 C4
IC3 C5
IC4 C4
IC5 C4
IC6 C4
IC7 D4
IC8 D3
IC9 E2
IC10 E2
IC11 E3
IC12 E3
2
IC13 E3
IC14 E3
LD ( V RF)
IC15 E4
IC16 E3
IC17 E4
IC18 E4
CD
IC19 E4
IC20 E4
IC21 E5
IC22 E4
IC23 E5
DVD
IC24 C2
IC25 C2
IC33 D4
IC34 D4
IC35 D3
CBL/SAT
IC36 D2
IC39 C3
IC40 C3
IC41 C3
IC43 C4
3
CD
IC46 C5
IC57 E2
MD IN
MD OUT
DVD
LD
4
D–TV
CBL/SAT
VCR–1
5
E-76/J-68
6
C
(Lead Type Device)
3 4
1
30
100 31
50
81
80 51
1 7 1 7 8 14
14 8 14 8 7 1
1 8
16 9
31
1 14
1 8
16 9
28 15
31
21
40
8 14
20 1
7 1
1 2 5
D E
FROM : FUNCTION (1)
21 40
20 1
176
133
F G
Point q (Pin 9 of IC2)
V : 2V/div, H : 50 nsec/div
DC, 1 : 1 probe
FROM : MAIN (3)
0V
Point w (Pin 11 of IC2)
V : 2V/div, H : 50 nsec/div
DC, 1 : 1 probe
0V
Point e (Pin 56 of IC24)
V : 2V/div, H : 50 nsec/div
DC, 1 : 1 probe
0V
Point r (Pin 13 of IC1)
V : 2V/div, H : 50 nsec/div
DC, 1 : 1 probe
0V
Point t (Pin 3 of IC7)
V : 1V/div, H : 50 nsec/div
DC, 1 : 1 probe
0V
H