A
B
C
D
E
F
G
H
I
J
1
2
3
4
5
6
7
RX-V420/RX-V420RDS/HTR-5440/HTR-5440RDS/DSP-AX420
MAIN (2) P. C. B.
MAIN (6) P. C. B.
MAIN (7) P. C. B.
MAIN (5) P. C. B.
MAIN (4) P. C. B.
SPEAKERS
A
B
To MAIN (4)
L
L
BL
AL
BR
AR
R
R
From MAIN (6)
R
R
BR
AR
BL
AL
L
L
SPEAKERS
L
R
–
+
+
–
From MAIN (1)
L
LE
LE
RE
E
L
R
R
RE
From Transformer
To MAIN (2)
HI1
HI1
HI2
HI2
E
E
LO
W2
LO
W2
LO
W1
LO
W1
To
MAIN
(1)
VPB
+R
YV
+R
YV
From MAIN (7)
From MAIN (2)
To MAIN (3)
RE
OR
WH
YE
BR
BE
240V
1-2/5-6
220V
2-3/6-7
110V
3-4/7-8
120V
4-5/8-1
VOLTAGE SELECTOR
MAIN (3) P. C. B.
BR
BE
WH
OR
YE
RE
GY
BR
To MAIN (7)
To MAIN (1)
From AC power cord
BR
To MAIN (5)
GY
RE
BL
RE
To MAIN (1)
PRY
PRV1
S12
MG
To MAIN (5)
HI1
HI1
HI2
HI2
E
E
LOW2
LOW2
LOW1
LOW1
■
PRINTED CIRCUIT BOARD (Foil side)
Ref. No.
Location
D161
C4
D162
B5
D163
E3
D164
D3
D221
I5
D222
I6
D223
H6
• Semiconductor Location
Ref. No.
Location
Q161
D3
Q162
E3
Q163
D3
E-52/J-48
E-51/J-47
Circuit No.
J
U, C
R, T
A, B
G
C165, 166, 174
X
X
O
X
X
C201~210
X
X
X
O
O
CB163, 164
X
O
X
X
O
CB271, 272
X
X
O
X
X
D164
X
X
O
X
X
F161
X
O
X
X
O
F271
X
X
O
X
X
J161
O
O
X
O
O
J162
O
O
O
O
X
J163, 221, 224
O
X
X
X
X
J178, 179, 222, 223
X
O
O
O
O
Q162, 163
X
X
O
X
X
R162, 163, 175
X
X
O
X
X
R167
X
O
X
X
X
SW161
X
O
O
O
O
SW271
X
X
O
X
X
W261~266
X
X
O
X
X
X: NOT USED
O: USED / APPLICABLE
