Yamaha HS8 Service Manual page 41

H G
HS8/HS7/HS5 BLOCK & LEVEL DIAGRAM（ブロック&レベルダイアグラム）
IN
JK301
2
INPUT 1 (XLR)
3
JK302
INPUT 2 (PHONE)
28CA1-2001115688-1
F E
IC301 VR301 IC301 IC302
1 7
SW301
AC INLET
D
IC305 IC305 IC306
1 7
7
SW302
IC303 IC303 IC304
7 1
Power switch
W102A W102B
AC
(White) (Gray)
F101
JK101
HS8/HS7/HS5 BLOCK & LEVEL DIAGRAM（ブロック&レベルダイアグラム）
C B
POWER AMP 68W
AMP
IC404
IC306
1 7
Q401
POWER AMP 68W
IC403
1
Q402-Q405
TR
REGULATOR
D401
IC401
IC402
W401 (2P)
W501 (2P)
LED
LD501
A
HS8/HS7/HS5
1
SPEAKER
(TWEETER)
SPEAKER
(WOOFER)
2
3
Power indicator
4
5
3