A
B
C
D
E
F
G
H
I
J
1
2
3
4
5
6
7
RX-SL80
53
POWER (3) P. C. B.
Side B (Lead Free Solder Used)
Side B (Lead Free Solder Used)
POWER (1) P. C. B.
B, G models only
6
6
CH1
CH2
■
PRINTED CIRCUIT BOARD (Foil side)
Ref. No.
Location
D2
C2
D3
D2
D5
D2
D6
C2
D7
C2
D8
E2
D9
C2
D10
C2
D11
D3
D13
F3
D14
F3
D16
G3
• Semiconductor Location
Ref. No.
Location
D17
E4
D18
E4
Q3
C2
Q4
C2
Q5
C2
Q6
C2
Q8
C2
Q9
C2
Q11
D3
Q14
D2
Q15
D3
Point
y
CH 1 : Emitter of Q9
CH 2 : Collector of Q4
V : 5V/div (CH 1)
V : 5V/div (CH 2)
DC, 1 : 1 probe, H : 4.0sec/div
CH 2
CH 1
↑
AC POWER ON
(Connect the power cable)
↑
AC POWER OFF
(Disconnect the power cable)