Yamaha RP-U200, Service Manual, Page: 36 / 52

A B C D E F G H
1
2
3
4
5
6
I J K L M N O
7
8
9
10
RP-U200
■
SCHEMATIC DIAGRAM (MAIN)
E-41/J-39
* All voltage are measured with a 10M
Ω
/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.
POWER AMP
SW MUTE
MAIN POWER SUPPLY
SUB
POWER SUPPLY
SW MUTE
A MUTE
SW MUTE
SW MUTE
PHONES AMP
VOLUME
VOLUME
0.7
0.8
0.8
0.9
0.9
11.8 11.8 11.8
0.9 0.9
0.9
14.7
15.1
15.3
–15.4
–0.4
–0.3
–14.8
–19.9
–19.9
7.8
7.8
7.8 5.1
3.8
3.6
18.1
–15.3
0
0
0
7.8
5.3 5.7
0
0
0.6
11.3
7.8
11.3
11.3
0.3
0
5.6
5.6
–23.6
–35.7
23.0
AC7.8
AC13.9
AC30.4
3.8
3.6
0
0
7.2
16.8
13.0
–1.2
17.8
–17.8
–35.8
1.4
4.6
4.6
4.6
4.6
4.6
4.5
4.6
5.5 5.5
0
0
0
0
0.1
0.1
0.1
0.1
0.1 0.1
0.1
0.1
0.1
9.2
0.1
0.1
0.1
0.1
0.1
0.1
–14.4
–14.8
14.7
14.7 14.7
14.7
12.1
0.1
0.1
0.1
0.1
0.1
0.1
4.6
4.1
0.1
0.1
0.1
8.0
16.8
16.8
1.7
1.7
2.8
8.2
8.2
0
0
8.0
2.8
2.8
0
0
0.1
1.7
0.1
0.1
0.1
0.1
0.1
0.1
2.1
2.4
2.4
8.0 8.0
8.0 8.0
8.0
8.0
8.0
0.1
14.7
–14.8
–14.5
0.1
0.1
–14.5
–14.5
–14.5
–14.7
0.1
0.1
0.1
14.7
0.1
0.1
0.1
14.7
0.1
0.1
0.1
4.6
4.6 4.6
4.6
4.6
4.6
4.6
4.6
4.6
4.6
0.1
0.1
9.1
0
0
0
–14.7
0.1
0.1
0.1
0.1
0.1
0.1
0.1
–14.8
–14.5
0
0
0
0
0
0
AC
10.4
0.1
4.1
4.6
0.1
–14.5
4.6
4.6
4.6
4.6 4.6
4.6
1.7
0.1
0
0
8.0
8.0
2.8
2.8
16.8
8.0
8.0
8.1
2.4
8.2
4.6
4.1
4.6
4.6
4.6
0.1
0.1
9.1
0
0
0
–14.5
CIRCUIT CHANGES BY MARKET.
O : USED
SUBWOOFER
OUTPUT
IC28–30 : LA4628
Power Amp
AN78N09F NJM78M05FA
NJM78M12FA
1: OUTPUT
2: COMMON
3: INPUT
3 2
1
LC75342M-TLM
µ
PC4570G2
BA15218F
1SS133
1T2
MTZJ12.0B
MTZJ16.0A
MTZJ24.0B
2SC1740S (R, S)
E
B
C
B
C
E
2SA1708 (S, T) 2SB1565 (E, F)
2SD2396 (J, K)
S1VB20
Anode
Cathode
C
E
B
2SC3326 (A, B)
DTA114EKA
B
C
E
12
3
1:INPUT
2:COMMON
3:OUTPUT
LA4628
+
–
P-E40/J38
N-3
TO DSP
P-E42/J40
J-1
TO OPE (2)
P-E40/J38
N-5
TO DSP
P-E42/J40
J-4
TO OPE (1)
FROM POWER TRANS
FROM POWER TRANS
FROM POWER CORD
FROM POWER TRANS
8
4
1
5
30
15
1
16
IC9, 11, 13, 21 :
µ
PC4570G2
IC5 : BA15218FA
Dual OP Amp
– +
OUT 1
–IN
1
–V CC
+V CC
OUT
2
1
2
3
4 5
+IN 1 –IN 2
+IN 2
– +
6
7
8
RIPPLE
FILTER OUTPUT PIN TO VCC SHORT
PROTECTOR
OUTPUT PIN TO GND SHORT
PROTECTOR
BIAS
CIRCUIT
STANDBY
SW
13
12
1
2
5 7
14
3
4
11
LOAD SHORT
PROTECTOR
LOAD SHORT
PROTECTOR
POWER
POWER
POWER
POWER
+
IN
-
PREDRIVER
PREDRIVER
PREDRIVER
PREDRIVER
OUTPUT PIN TO GND SHORT
PROTECTOR
OUTPUT PIN TO VCC SHORT
PROTECTOR
9
10
8
OVER VOLTAGE/
SURGE PROTECTOR
THERMAL
SHUT DOWN
VCC
POP NOISE
PREVENTION
CIRCUIT
+
IN
-
6
-OUT1
+OUT1
POWER
GND1
-OUT2
+OUT2
POWER
GND2
IN1
DC VCC
A-GND
STBY
IN2
POP ON TIME
IC2, 3 : LC75342M-TLM
Input Selector & Electric Controlled
Volume
28 27 29 30 1 2 3 4
14 13 12 11 15 16
5
7
9
10 21
17 18 19 20
8
6
26
23
25
24
22
CCB
INTERF
A
C
E
CONTR
O
L
CIRCUIT
CONTR
O
L
CIRCUIT
CONTR
O
L
CIRCUIT
LVREF R
VREF
+ –
– +
+ –
+ –
+ –
– +
+ –
+ –
+ – + –
LOUT
LBASS2
LBASS1
LTRE
LIN
LSELO
ROUT
TEST VSS CE DI CL VDD VREF NC
RBASS2
RBASS1
RTRE
RIN
RSELO
L4 L3 L2 L1
NC NC
R1 R2 R3 R4
1
2
14
13