Sw-P201 Schematic Diagram - Yamaha NS-P210 Service Manual

A B

SW-P201 SCHEMATIC DIAGRAM

1
2
3
4
0
0
5
R MODEL GR
WH
RE
BR
BE
BE
6
WH
BE
AC49.0
BE
BE
7
WH WH
WH
BE
PIN CONNECTION DIAGRAM OF TRANSISTORS, DIODES AND ICS.
8
1SS133 RBV-402 2SA1015 (Y) 2SB1565 (EF)
1SR139-400 2SC1815 (Y) 2SD2394 (DEF)
MTZJ12C 2SC2240 (GR, BL)
MTZJ15C
MTZJ24B
Anode
–
E
+ C B
Cathode
B C E
C D E
-14.3
0
0
0
14.3
0
0
0
11.1
9.8
9.1 10.4
0
0.6
1.9
0
0
0
14.3 14.3
0 0
0
0
-14.3
14.2
30.9
14.8
0
-31.2
0
30.9
0
-14.8
-31.1 -14.2
29.9 11.6
29.5
29.9
29.9
11.7
4.0
12.1
12.2
0.1
0
0.7
0
µPC1237HA µPC4570HA
2SK304 (E, T) BA4558N
M51848L
8
8 9
D
G
S
1
1
1
F G
LIMITER
14.3
0 0
0
0
0.1
-0.1
0
-0.1
0 0
0.1
0 0
-14.3
0 0.5
14.1
0
0 0
0 0.1 0
0
0.5
0
14.1
-14.1
14.3
PROTECTION
9.1
0.8
26.9
9.7
0
9.8
0
9.7
5.5
11.0
5.5 1.4
11.0
AUTO POWER ON/OFF CIRCUIT
STK404-050
1 0
1
H I
POWER AMP
1.9
WH
RE
0
0
-1.5
14.3
0 0
0.1 0
0
-14.3
10.9
0
0
J K
NS-P210
IC1 : BA4558N
Dual OP-Amp
+ +
– –
1 2 3 4 5 6 7 8
µ
IC2, 3, 7, 8 : PC4570HA
Dual OP-Amp
1 2
– + + –
1 2 3 4 5 6 7 8 9
V CC V O1 –Vm 1 +Vm 1 V EE +Vm 2 –Vm 2 V O2 V CC
IC4 : STK404-050
AF Power Amp
TR7
TR6
R1
R4
TR1 TR2
R5
TR8
C2
C1
R2
TR5
TR3 D1 R3 R6
TR4
SUB
1 2 3 4 5 6 7 8 9 10
µ
IC5 : PC1237HA
Protector IC for Power Amplifier
Vcc
7 8
Relay
Overload Vcc on
1 drive 6
detect mute
circuit
Flip flop
circuit
Mid-point
AC OFF
2 potential
detect
detect
Latch / automatic
return select
5 3 4
GND
IC6 : M51848L
CR Timer
R R R
–
+
FLIP-
FLOP
1 2 3 4 5 6 8
7
* All voltage are measured with a 10MΩ/V DC electric 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.
E-8/J-6