Sw-P330 Schematic Diagram - Yamaha NS-P336 Service Manual

A B
NS-P330/NS-P336
I

SW-P330 SCHEMATIC DIAGRAM

1
BUFFER
INPUT
0 0
0
-14.9
0
0
0
14.7
2
3
4
PIN CONNECTION DIAGRAM OF TRANSISTORS,
DIODES AND ICS.
2SB1642 1SR139-400 STK404-120 TA7317P
2SD2531 1SS133
MTZJ15.0C
MTZJ24.0B
12
Anode
1 1
5
B C
E
Cathode
µPC4570HA
2SA970 2SK304 D3SBA20
2SC1815
2SA1015
2SC2240
9
S
G D
1
E
C B
10
6
C
L.P.F.
H.P.F.
0
0
0 0
0
0
14.7
-14.9
EUROPE
9
–
~
~
+
D E
LIMITTER
14.8
0
0 0
0
0 0
0
0
0 0
0
0 0
0
-15.0
PROTECTION
1.1
25.4
-23.7
0
14.7
48.6
AC78.9
15.2
0
0
0
-53.5 53.2
-15.4
0
-15.0
-49.1
POWER SUPPLY
F
POWER AMP
53.1
0
0
A.N.I.C.
0
0
-1.9
0
0
0 0 0
0 0 0 -0.4
0 0
-15.0
14.7
IC1 : STK404-120
Power Amp
6 7 10
POWER
BIAS
STAGE
PRE
2 DRIVER
11
+
–
12
3
SUB
4 1 8 9
5
* All voltages are measured with a 10M Ω /V DC electronic volt meter.
* Components having special characteristics are marked Z and must be replaced with parts having
specifications equal to those originally installed.
* Schematic diagram is subject to change without notice.
* 電圧は、内部抵抗10MΩの電圧計で測定したものです。
* Z印のある部品は、安全性確保部品を示しています。部品の交換が必要な場合、パーツリストに記載されている
部品を使用してください。
* 本回路図は標準回路図です。改良のため予告なく変更することがございます。
G H
53.1
53.1
-0.7
DRIVE
WOOFER
IC2, 4, 5 : µPC4570HA
Dual OP-Amp
1 2
– + + –
1 2 3 4 5 6 7 8 9
V CC V –Vm +Vm V EE +Vm –Vm V V CC
O1 1 1 2 2 O2
IC3 : TA7317P
Protector
8 9
Muting Constant voltage
circuit power supply circuit
Power supply
ON/OFF
detecting circuit
1
Schmidt Relay drive
OR circuit 6
Overcurrent
circuit circuit
detecting circuit
Discharging
2
Current voltage Substrate
circuit
3 detecting circuit
7 4 5
GND