Yamaha YST-SW515, Руководство по обслуживанию

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A B C D E F G H I J K L
YST-SW515
13
SCHEMATIC DIAGRAM
1
2
3
4
5
6
7
8
9
★
All voltages are measured with a 10M
Ω
/V DC electronic voltmeter.
★
Components having special characteristics are marked s and must be replaced
with parts having specifications equal to those originally installed.
★
Schematic diagram is subject to change without notice.
V
IN
V
OUT
GND
IC202 NJM78L08A
Voltage Regulator
IC201: LB8555D
Timer
1
VCC 8 DISCHARGE 7
CONTROL VOLTAGE 5
THRESHOLD 6
+
–
TRIGGER
GND
2
RESET 4
+
–
R
S Q
OUTPUT 3
8 7 6 5 4 3 2 1
OUT
1
–Vcc
+IN
2
–IN
2
OUT
2
+Vcc
+IN
1
–IN
1
IC11: NJM4558L
Dual OP-Amp
IC6: NJM78M12FA
Voltage Regulator
INPUT
OUTPUT
COMMON
IC4, 7, 8, 10:
µ
PC4570HA
Dual OP-Amp
Vcc Vo
1
-Vm
1
+Vm
1
V
EE
+Vm
2
-Vm
2
Vo
2
Vcc
1 2 3 4 5 6 7 8 9
+ + - -
1 2
IC1: NJM79M12FA
Voltage Regulator
COMMON
OUTPUT
INPUT
1
8
1
9
1
4 8
OUT
COM
IN
PIN CONNECTION DIAGRAM OF TRANSISTORS, DIODES AND ICS.
2SA1837
2SC4793 2SA1492
2SC3856
2SC4688 1SR139
1SS133
EL02ZLF
MTZJ12C
MTZJ24B
MTZJ3.6B
S2L20U S1NB20 2SA1015
2SA1145
2SA970
2SC1815
2SC2240
2SC2705
2SC2878 D5SBA20
NJM4558L NJM78L08A
µ
PC4570HA NJM79M12FA NJM78M12FA LB8555D
Anode
Cathode
~
+
~
–
+
–
E
C B
B C
E
B
C E
1: OUT
2: IN
3: COM
1: OUT
2: COM
3: IN
AC 12.4
AC 27.9
AC 102.4
0
11.9
0
0
0
0
11.9
0
0
-11.8
0
0
3.4
3.4
3.4
2.7
-0.1
-0.1
6.0
0.7
0
0
0
-11.8
0
0
0
0
4.0
0.1
7.9
6.8
6.7
4.0
0
0
0
0.7
7.3
7.9
0.1
0.1
1.9
0
0
5.8
1.4
-11.8
11.9
0
0
0
0
0
0
1.9 5.9
6.6
0
-11.8
0
0
11.9
0
0
0
0
1.4 6.6
7.9
7.9
5.6 5.6
5.3
69.7
0.7
69.8
69.8
69.3
1.8
1.8
3.8
1.8
1.0
-1.6
69.8
70.1
1.2
1.2
4.4
4.4
70.1
67.8
69.5
70.1
70.1
0.2 0.2
0.7
0.7
-69.6
-69.6
-69.6
-69.6
-69.5
-69.6
-1.6
-1.6
-1.0 -1.0
-4.3
-4.3
-3.7
-70.4
-70.3
-69.6
-68.9
-68.9
-70.3
-70.3
-69.6
-69.6
0
0
0 0.1
0.1
-11.8
0
0
0
0
0
11.9
0.1
0.1
0 0
0 0
0
0
0
0
-18.2
-0.1 -12.5
-12.5 -12.5
-0.6
-5.9
0
18.3 18.3
-18.2 -11.8
-11.8
11.9
7.2 13.2
0
0
13.2
13.2
6.2
0.1
6.1
0.1
0.1
0.8
0
70.1
0.1 0
1.3
0
1.3
1.3
0.8
0.7
0.1
0 0
0
70.1
-70.3
0
-2.7
-2.7
-2.7
-2.7 -2.3 -70.3
-70.3
70.1
70.1
69.6
69.4
69.4
70.0
69.6
69.6
2.7
3.3
3.4
1.2
0.6
0.7
-0.5
-0.1
-0.1
-0.3
-3.3
-3.7
-70.3
-70.7
-70.0
-70.7
-70.2
-70.2
-70.3
-70.3
-70.2
-69.6
-2.7
-2.7
0.1
0.1
0.1
69.9
70.1
70.1
-0.6
2.7
70.1
70.1
70.1
0.1
0.1
2.7
2.7
2.7
2.7
2
4
3
5
TIMER
x: NOT USED
O: USED / APPLICABLE
L.P.F.
B.P.F
AUTO POWER ON / OFF CIRCUIT
L.P.F
PRE DRIVE
LIMITER
A.N.I.C
POWER DRIVE
POWER SUPPLY
POWER SUPPLY
PS AMP
PROTECTION
H.P.F L.P.F
SUB POWER SUPPLY
PHASE
B.A.S.S.
HIGH CUT
VOLUME
DRIVER
STANDBY/ON
POWER
INPUT 1 / OUTPUT
INPUT 2
R273
330
R274
330
WB49370 WB49370
w w w . x i a o y u 1 6 3 . c o m
Q Q
3 7 6 3 1 5 1 5 0 9 9
2
8 9
4 2
9 8
T E L 1 3 9 4 2 2 9 6 5 1 3 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3
Q Q
TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299
http://www.xiaoyu163.com
http://www.xiaoyu163.com