Yamaha Strings SS-30 Service Manual page 23

φA
RA-2F-φA(68)
(32)
.
-14+1V
( )
f=50KHz
I
RA-F-03(7)
( 6)
φB
RA- F-φB(67)
(33)
φC
RA-LF-φC(66)
(3 )
CLOCK OSC
Analog Delay
SS-30 (S/ # l00 l ~ )
OR
Highcut Filter
Note)
Tr1~3, 6~8, 11~13 : 2SC458LG
Tr4,5,9,10,14,15 : 2SA495
D1 ~ 12 : IS1555
iC1 ~3 : MN3004
-22-
Circuit Diagram
-15
(84)
+15
(47)
0
PN2-VR-3
(45) (ORCHESTRA DEPTH)