Yamaha YSTMS50B Service Manual page 7

A B
PRINTED CIRCUIT BOARD (Component side)
1
Subwoofer
BL: U, C WH: U, C
BR: A, B, G BE: A, B, G
WH
BE
2
3
4
Satellite Speaker (L ch)
MAIN ( B ) P. C. B.
5
TO
L
SUB Wo.
6
C
MAIN ( A ) P. C. B.
FROM : POWER CORD
SPEAKER SPEAKER
(MIDRANGE) (TWEETER)
– + + –
2.2
BL
RE
D E
TO : SPEAKER (WOOFER)
MAIN ( E ) P. C. B.
BASS
RE
6
F G
MAIN ( F ) P. C. B.
POWER
TO : MAIN ( A )
H
YST-MS50
(M)
Semiconductor Location
Ref. No. Location
D2 B2
D3 F3
D4 F2
D5 E2
D6 E3
D7 E3
D8 E3
Ref. No. Location
IC1 F2
IC2 E3
IC4 C2
IC5 C2
IC6 E2
IC7 E3
Ref. No. Location
Q3 F3
Q4 F2
Q5 E2
Q6 F2
Q7 E2
Q8 E2
7