Yamaha XS250 Service Manual page 27

Power amplifier
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A
B
C
XS250/350 OVERALL CIRCUIT DIAGRAM (PA7, SUB1/5 - SUB5/5)
1
SUB2/5
2
OP AMP
OP AMP
OP AMP
OP AMP
3
OP AMP
OP AMP
OP AMP
OP AMP
4
5
6
7
8
SUB1/5
From T101
9
SUB4/5
10
• XS350 only
KEC-92349 2
11
12
XS250/350
A
B
C
D
E
F
G
OP AMP
OP AMP
OP AMP
OP AMP
OP AMP
OP AMP
OP AMP
OP AMP
REGULATOR
REGULATOR
KEC-92349 2
D
E
F
G
H
I
J
K
OP AMP
OP AMP
KEC-92349 2
PA7
H
I
J
K
L
M
N
•NJM7815FA (XD853A00)
•NJM7915FA (XD854A00)
•REGULATOR
•REGULATOR
Capactor
:
:
:
3
3
2
2
Rasistor
:
1
1
1.OUTPUT
1.OUTPUT
2.COMMON
2.INPUT
3.INPUT
3.COMMON
SUB3/5
• XS350 only
• XS350 only
L
M
N
O
P
Q
XS250/350
1
Mylar Capactor
Mylar Capactor
2
Ceramic Capactor
: Mica Capactor
Flame Proot C. Rasistor
: Wire Wound Resistor
3
4
5
KEC-92349 2
6
7
8
SUB5/5
9
KEC-92349 2
10
11
KEC-92348 2
12
XS250/350
O
P
Q

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