Yamaha DSR112 Service Manual page 115

H G
IC101 1/2
+15A
JK101
IC102 2/2
3 + +15A -15A
INPUT L 1 +15A
Dif.A
2
-
HPF
6 7
- SUM
-15A
3rd Order
JK102 -15A Butterworth
THRU L
IC201 1/2,2/2
+15A -15A +15A
IC101 2/2
+15A
JK103 LOW BOOST
5
+
7
INPUT R Dif.A
6
-
2nd Order
1BAND
-15A
JK104
THRU R
DET.
Q201
LD202
PEAK Red
LED
SW201
POLARITY
SW
SW202
FRONT LED DISABLE
SW
LD204
Q205
LIMIT
Red
LED
LD203
Q203
PROTECTION
Red
LED
LD201
POWER Green +15LD
LED
IN4
201063512-1
28CA1- 1
F E
IC203 2/2
VR201
+15A
LEVEL
5 7
+ BUF
-15A
Q301
IC202 2/2 IC202 1/2
IC301 2/2
-15A +15A -15A
SW201
+15A
POLARITY
SW
LPF LPF
Normal
COMP-IN
3 3
IC203 1/2 LIMITER
Inverted
+15A
2nd Order 3rd Order
Butterworth
Butterworth
2 - 1
INV
-15A
-15A
5,6 5,6
+15A +15A
THRES.
7,8 7,8
-15A -15A
Q202
13 13
+15LD +15LD
17 17
-15LD -15LD
FRONT-LED-SW 11 11
LIMIT-LED
19 19
PROTECTION-LED 9 9
ASP
D
1/2
DSR118W
V-SENCE
7 7
T-SENCE 4 4
IC301 1/2
-15A
+15A
SIG-LF+ 17 17
1 SIG-LF- 18 18
2
IC305 1/2,2/2 - UB-BAL
+15A -15A
Q302
Q305
-15A
INTEGRATED
VOLTAGE DET.
+15S +15A -15A
Q303
V-PEAK DET.
IC302 1/2,2/2
IC303 1/2
Q316
/A-MUTE 12 12
DC-DET-LF
14 14
Q313 Q311
Q314
Q315
DELAY
AMP-ENA
15 15
+15S +15A -15A
Q310
COMP T-SENSE
H-TEMP
IC308 2/2 /AMP-ERR
11 11
IC303 2/2
CN907 (5P)
+18A
CONNECTOR
5 5 POFF-REQ
PWR-ON/OFF
/A-MUTE 6 6 /PWR-OFF
MUTE
Q304 Q308
Q306 Q309
Q307 Q312
IC309
+15S REG
+15S
IC306
+18A 3 3
+15A REG
+15A
IC307
-18A
1 1
-15A REG
-15A
10 10
BRG4
LED
C B
DSR112/DSR115/DSR215/DSR118W
11
11
ATT
8 8
+18A
IC300
+B
VDR
Q703 THERMAL SENSOR
Q704
SIG-LF+ 2 2
P-AMP
MUTE
SIG-LF- 3 3
(LF)
-B
+18A
MUTE
13 13
DRIVER
Q701
Q702
Q714
Q713
Q715
DCDETL-CHK
7 7
DC DET.
15 15
Q707 Q710
Q708 Q712
16 16
I/F
5f(sw) CLOCK
Q716
Q717
Q723
12 12
1
DIAG
THERMAL SENSOR
5 5
SW Controller
6 6
D122,D123
+B Power
Resonance
-B Power
Half Bridge
IC107
VDR Power DC/DC
CONV.
IC108
3 3
+18A Power
( with
IC106 Transformer
1 1
-18A Power
AMPS2
CN905 (2P)
CN1 (2P)
LD1
FRONT-LED
A
1
2
WOOFER
3
Generator
Q319
4
PFC
)
DIODE
BRIDGE
5
CN101 (4P)
POWER
SW AC-INLET
ACIN
5