Yamaha DSP-AX2 Service Manual

ABCDEFGH
1
2
3
4
5
6
DSP-AX2
■ PRINTED CIRCUIT BOARD (Foil side)
E-50/J-48
1
36
37
72
73
108
109
144
1
24
48
25
1
15
16
30
1
15
16
30
1
15
16
30
1
15
16
30
1
15
16
30
16
30
1
15
1
8
5
4
1
8
5
4
1
8
5
4
1
8
5
4
1
8
5
4
1
8
5
4
1
8
5
4
1
8
5
4
1
8
5
4
1
8
5
4
1
8
5
4
1
8
5
4
1
16
9
8
16
9
1
8
16
9
1
8
16
9
1
8
16
9
1
8
3
4
4
B
A
J only
R, T, B, G only
IN
OUT
CD
PAHONO
MAIN
SURROUND
SUBWOOFER
/CENTER
AUDIO
MD/TAPE
IN
OUT
CD-R
6CH INPUT
TO : F AMP (1)
W501
#501
THM FAN PRI PRO FR E FL
+12
-12
+5V
+5D1
+5D2
-5V
PRV
#502
TO : F AMP (1)
W502
RR RL FL E C DAL E E -5V +5D1 +12 SDD /ICD DMT NC
RC
FR
SW
E
DAR
E
ADR
ADL
+5D2
-12
CSY
SDM
SCK
INT928
FROM : DSP
I/E SDTN SCKN AXV AXY AXC
VSY
CEB CES
+5V
-5V
AXE
FROM : VIDEO (1)
FROM : OPERATION (4)
AXV AVE AXY AVE AXC
MG
PSW
+5M
KEY1
/FLR
CEM0
RM+
+5V REM KEY0 SDTN SCKN CEM1 RM-
FROM : OPERATION (1)
FROM : OPERATION (7)
VRA VRB MG
FROM : F AMP (7)
PRY +MB MG
RM- RTS MG BOOT +5V
RM+
+5M2
/RES
CTS TXD
RXD
FROM : VIDEO (6)
FROM : OPERATION (4)
AXR
AXE
AXL
REB REC MG -12 TOR E TOL HPR E HPMT
REA
+5M
/BEC
+12
TIR
TIL
E
HPL /HPI
FROM : OPERATION (2)
LI RI C RL E PRO SPA SPE LCD
E E
RC RR
FPRI
PRI
SPB
LC
FROM : MAIN (1)
E E E E SW RR FL
LO
RO
LI
RI
C
RL
RC
FR
FROM : VIDEO (3)
E
DVR
DVL
TVR
TVL
CBR
CBL
STR
STL
V1R
E
E
V1L
V1RR
V1RL
V2R
V2L
V2RR
V2RL
ZTR
ZTL
E
FROM : VIDEO (5)
FUNCTION P.C.B.
(Lead Type Device)
Point e (Pin 20 of IC26)
V : 2V/div, H : 50 nsec/div
DC, 1 : 1 probe
0V
Point r-A (+MB : Emitter of Q506)
Point r-B (/RES : Collector of Q507)
V : 5V/div (+ MB), V : 1V/div (/RES)
DC, 1 : 1 probe, H : 1 sec/div
0V
0V
+ MB
/
RES
AC CORD ON AC CORD OFF
Ref. No. Location
D502 C3
D503 C2
D508 C3
D509 C2
D510 C4
D511 C4
D512 C4
D513 C4
D514 C2
D515 C2
D516 D3
D517 B4
D518 D3
Ref. No. Location
IC501 G4
IC502 F3
IC503 G2
IC504 F3
IC505 G2
IC506 G4
IC507 G4
IC508 F4
IC511 F4
IC512 E4
IC513 E3
IC514 E4
IC515 E4
IC516 D4
IC517 D4
IC518 D4
IC519 D4
IC520 D4
IC521 D4
IC522 D3
IC523 D4
IC524 D4
IC525 D4
IC526 C3
IC527 C4
IC528 C2
● Semiconductor Location
Ref. No. Location
Q505 C3
Q506 C2
Q507 C3
Q508 C4
Q509 C4
Q514 D4
Q516 D4
Q518 D3
Q519 D3
Q520 D3
Q521 D3
Q522 E4
Q523 D4
Q524 E3
Q525 C3
Q526 C3
Q527 C3
Q528 C3
Q529 C3
Q530 C3
Q531 C3
Q532 C3
Q533 B4
Q534 B4
Q535 C3
Q536 C3
Q537 D3
Q538 D3
Q539 D3
Q540 D3
Q543 E3
Q544 D3
Q545 E3
E-51/J-49

Yamaha DSP-AX2 Specifications

General

Brand	Yamaha
Model	DSP-AX2
Category	Amplifier
Language	English