Yamaha TSX-130, Руководство по обслуживанию

Страница: 61 / 86

★
All voltages are measured with a 10MΩ/V DC electronic voltmeter.
★
Components having special characteristics are marked
⚠
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。
● ⚠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。
A
1
2
3
4
5
6
7
8
9
10
B C D E F G H I J K L M N
61
POWER 1/2
TSX-130/TSX-120
IC1
CB1
1
W11B
CB1
CB2 CB3
W11A
IC11
W2
W3
IC4
W4
W5
IC13
AC35.4
AC7.1
Primary ground
0
0
13.3
1
3.3 3.5
1.
0
1
2.5
0
2.5
10.0
0
3.5
0
11.9
11.9
0
14.6
14.6
11.7
0
0
11.7 0
39.9
40.5 32.8
33.3
33.3
16.6
40.5
18.2
0
18.5
41.5
3.0
0
3.3
7.1
40.5
1.6
5.3
5.2
5.3
0
5.2
5.2
0
0.4
0
0
0
3.4
0
0
7.0
7.0
7.6
13.9
13.3
14.0
0
0
11.8
3.2
0
0
3.3
14.6
(165.2) (165.2)
(235.8)
(235.8)
(235.8)
(1
64.9)
(164.9)
(1.2)
11.1
10.0
(3.2)
(0)
11.7
11.7
(16.7)
(0)
(1.4)
(1.2)
(16.7)
(16.7)
(0)
(0.2)
(0)
(69.3)
(69.7)
(0)
(0)
(0)
(0.6)
(0.6)
(1.0)
(16.7)
(1.3)
(3.2)
(0.6)
(0.5)
(2.1)
(0.8)
(2.9)
(0.2)
(5.1)
12.3 2.7
14.0 2.7
1
E
2
1 Q8 (E)
Q9 (C) 2
POWER cable ON POWER cable OFF
1 Q8 (E)
Q9 (C) 2
POWER cable ON
POINT E 1 / Q8, 2 / Q9
CONTROL
IC
POWER (1)
POWER (7)
AC IN
TSX-130
TSX-120
TSX-130/TSX-120 TSX-130
OSC
PWM COMP DRIVER
STBY
STBY
OUT
INV
GND
VCC
TSD
OCP
Error AMP
SS
CTL
LOGIC
IC11 : BD9870FPS-E2
High stand voltage 1 channel step-down switching regulator
VREF
1
5
FIN
4
2
IC1 : L6566BTR
Multi mode controller for SMPS
MODE SELECTION
&
TURN-ON LOGIC
R
PWM
Q
S
DISABLE
VOLTAGE
REGULATOR
&
ADAPTIVE UVLO
TIME
OUT
UVLO_SHF
UVLO
Internal supply
Vcc
Reference
voltages
Vcc VIn
OCP2
4.5V
Q
6.4V
OVPL
1.5 V
BURST-MODE 5.7V
OVP
UVLO
AC_FAIL
ZERO CURRENT
DETECTOR
50 mV
100 mV
0.450V
0.485V
TIME
OUT OVPL
14V
IC_LATCH
OFF2
400 uA
OFF2
OVP
-
-
-
+
+
OCP
- + - +
+
+
-
-
+
-
+
-
+
OVERVOLTAGE
PROTECTION
LATCH
SOFT-START
&
FAULT MNGT
LOW CLAMP
& DISABLE
LEB
OSCILLATOR
1
10 14 9 15
7
4
5
6
13
12
11
16
HV
VREF SS AOMP VFF
CS
GD
8
3
GIS
GND
Vcc
FMOD
OSC
MODE/SC
ZCD
AC_OK
3 V
15 uA
DRIVER
15 uA
7.7V
1 mA
Hiccup-mode
OCP logic
LINE VOLTAGE
FEEDFORWARD
IC13 : NJM7812FA
Voltage regulator
INPUT
OUTPUT
COMMON
IC4 : NJM431U
Adjustable precision shunt regulator
ANODE REFERENCE CATHODE
1 2 3
to MAIN_CB215
Page 60 L4
to MAIN_CB209
Page 60 L5
to MAIN_CB214
Page 60 L5
to CD_CB610
Page 59 M2
to MAIN_CB208
Page 60 L3