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SRS-T77
3-2.
PRINTED WIRING BOARDS
1
AMP BOARD
(COMPONENT SIDE)
D1
K
A
+
C15
C4
A
R13
R14
R15
R18
B
D2
R17
POWER
A
K
R16
C26
C
AMP BOARD
(CONDUCTOR SIDE)
-1
-3
D
+
+
–
C22
E
SP1
(L-CH)
2
3
R11
+
C3
+
R20
C25
11
10
R4
C104
C102
IC2
R2
C23
C8
20
1
C21
+
+
C14
C6
S1
POWER
OFF/
-2
t
ON
DIRECT
-4
+
–
SP2
P1
(R-CH)
(LINE INPUT)
4
5
R1
C101
C24
C9
R19
C1
11
10
C103
IC1
C7
+
20
1
C20
+
+
C13
C5
1-680-334-
RED
1-680-334-
6
6
6
7
+
JACK BOARD
(COMPONENT SIDE)
+
11
(11)
JACK BOARD
(CONDUCTOR SIDE)
Q3
BLK
YEL
YEL
BRN
BRN
11
Note on Printed Wiring Boards:
(11)
• X : parts extracted from the component side.
• Y : parts extracted from the conductor side.
•
: Through hole.
z
•
: Pattern from the side which enables seeing.
(The other layers' patterns are not indicated.)
DRY BATTRY
Caution:
SIZE "AA"
Pattern face side:
(IEC DESIGNATION R6)
(Conductor Side)
Parts face side:
4PCS. 6V
(Component Side) the parts face are indicated.
8
• Semiconductor
Location
Ref. No.
Location
D1
A-1
D2
B-1
D3
B-1
IC1
B-5
IC2
B-3
Q1
A-3
Q2
A-2
Q3
D-7
11
R21
R22
(11)
1-680-335-
JK1
DC IN 9V
+
–
11
(11)
1-680-335-
Parts on the pattern face side seen from
the pattern face are indicated.
Parts on the parts face side seen from
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