Yamaha R-S300 Service Manual page 46

A B
R-S300
1
OPERATION (4) P.C.B.
LOUDNESS
FLAT/-30dB
2
3
VOR
AGND
VOL
OPERATION (3)
4
OPERATION (8) P.C.B.
5
W704A
SW717
6
W701B
OPERATION (1)
(W701A)
7
46
C D
OPERATION (5) P.C.B.
(Side A)
INPUT
FUNCTION (1)
(CB505)
SW711
NC
NC
NC
NC
NC
NC
NC
ISA
ISB
+5S
MG
LOR
LOL
(CB902)
OPERATION (10) P.C.B.
(Side A)
OPERATION (2)
(CB806)
W802
(power)
PURE DIRECT
indicator
E F G
OPERATION (6) P.C.B.
(Side A)
MAIN (1)
(W105)
HPR
HPE
HPL
OPERATION (11) P.C.B.
(Side A)
W704B
POWER
indicator
H I
OPERATION (7) P.C.B.
(Side A)
+5S
VOL_RA
VOL_RB
MG
FUNCTION (1)
(CB513)
JK701
PHONES
(Side A)
• Semiconductor Location
Ref no. Location
D714 G6
D803 E6
J
(Side A)
SW851
VOLUME