A
B
C
D
E
F
G
H
I
J
1
2
3
4
5
6
7
AVR-S80/NX-SW80
45
CN302
MUTE
TR7
TR2
CN302 ⑫
IC1
UPC4570
IC1
UPC4570
IC2
STK402-940
IC2
STK402-940
DC Signal Detect
TR4/TR5
Rear Speaker Lch
Rear Speaker Rch
RY1
REAR SPEAKER RELAY
SW-PRT
IC202
UPC4570
IC203
UPC4570
IC202
UPC4570
TR203
TR204
TR206
TR207
R245
R246
IC201
STK404-050
Sub Woofer
IC204/IC205
UPC4570
TR205
10
2
1
2
4
8
6
2
4
RY201
TR202
2
4
8
6
6
1
5
3
Power
+12v
-12v
Relay Control
1
3
D404
R257
① ② ③ ④
⑫
⑥ ⑦ ⑧
⑨ ⑩ ⑪
⑬
⑤
MUTE
TR15
TR10
CN302 ⑫
IC3
UPC4570
IC3
UPC4570
IC2
STK402-940
IC2
STK402-940
DC Signal Detect
TR12/TR13
RY4
FRONT SPEAKER RELAY
TR6
2
4
8
6
11
16
12
20
TR17
MUTE
CN302 ⑫
CN301
TR14
RY401
F401
IC402
IC403
D403
D211
TR401
SW-PRT
CN304 ①
Protection
Circuit
TR209/TR210
3
2
+B2
-B2
+B1
-B1
SW-PRT
CN302①
D212
D214
JK3 Headphone out
R227
CURRENT
DETECTOR
Over Current
Detect
TR3/TR1
0.22Ω/3W
0.22Ω/3W
Over Current
Detect
TR8/TR1
0.22Ω/3W
Over Current
Detect
TR11/TR9
RY3
CENTER SPEAKER RELAY
0.22Ω/3W
0.22Ω/3W
Over Current
Detect
TR16/TR9
Over Current
Detect
TR18/TR9
IC401
TR402
TR19
3
1
IC2
STK402-940
IC4
UPC4570
6
8
21
23
Front Speaker Lch
Front Speaker Rch
Center Speaker
See page 58~60 SCHEMATIC DIAGRAM
JUCAGB
RTK
F401
RY401
S401
F402
■
BLOCK DIAGRAM
▼
SW-S80
Summary of Contents for AVR-S80
Page 86: ...AVR S80 NX SW80 ...