Pcb Views - Yamaha DSP-AX2 Service Manual

A B
PRINTED CIRCUIT BOARD (Foil side)
1
2
1
2
3
4
+5D2
GND
AXD
GND
INT928
DMT
SCK
/ICD
SDM
SDD
CSY
+12
-12
+5D1
+5D2
-5V
ADL
E
ADR
E
E
DAL
DAR
C
E
E
SW
FL
FR
RL
RC
RR
5
6
C
DSP P.C.B.
(Lead Type Device)
D E
DSP P.C.B.
(Surface Mount Device)
B, G only
E-48/J-46
F G
Point q (Pin 1 of IC501)
V : 2V/div, H : 50 nsec/div
DC, 1 : 1 probe
0V
Point w (Pin 56 of IC503)
V : 2V/div, H : 50 nsec/div
DC, 1 : 1 probe
0V
B, G only
Semiconductor Location
Ref. No. Location
D501 C2
D502 C3
D503 C3
D504 C3
D505 C3
D506 C3
D507 C3
D508 F3
D509 B2
D510 E3
D511 C2
D512 B2
J, R, T only
D513 B2
D514 F4
D515 F3
D516 F4
D517 F4
D518 F4
D519 F4
D520 G4
D521 F4
D522 B5
D523 E5
D524 E5
D525 F5
D526 E5
D527 C5
D528 C5
D529 C5
D530 F5
D531 C5
D532 F4
D533 F4
D534 F4
D535 G4
D536 F4
D537 E5
D538 E5
H
DSP-AX2
Ref. No. Location
IC501 C3
IC502 B3
IC503 D3
IC504 D4
IC505 B2
IC506 B2
IC507 F2
IC508 F3
IC509 C3
IC510 F2
IC511 F3
IC512 D3
IC513 B4
IC514 C4
IC515 F5
IC516 F5
IC517 F5
IC518 F5
IC519 G5
IC520 B4
IC521 B4
IC522 B4
IC523 C4
IC524 C4
IC525 E5
IC526 E5
IC527 E5
Ref. No. Location
Q501 F2
Q502 F2
Q503 G2
Q504 G2
Q505 F3
Q506 D3
Q507 D3
Q508 F3
Q509 E4
Q510 E4
Q511 F5
Q512 F5
Q513 F5
Q514 E5
Q515 B5
Q516 F5
Q517 F5
Q518 G5
Q519 B5
Q520 B5
Q521 B5
Q522 F5
Q523 F5
Q524 F5
Q525 F5
Q526 G5
Q527 F5
E-49/J-47