Yamaha RX-A4A - OPERATION; 1;3

A
1
2
3
4
5
6
7
8
9
10
KJIHGFEDCB
L
NM
95
RX-A4A
0
J4003
R4013
no_use
D4009
1SS352
R4021
100K
R4034
2.2
C4030
0.1/50
C4003
no_use
0
J4004
CB401
ZX61220
HS402
CB403
VHIS
D4012
SKM3045CTFP
1
2
3
D4002
no_use
RY401
DG5D1-O(M)-II_T
R4030
10K
FA8A61N-A2-L3HH
IC401
1 234
8 765
D 4 0 0 3
S A R S 0 5
W4001A
VH-5298T
R4031
2 K
R4036
2.2K
R4014
1/4P4.7K
R4026
180
C 4 0 0 6
s406
D 4 0 1 5
1 S S 3 5 2
D4010
1SS352
R4016
1/4P4.7K
R4023
1 M
D4011
SKM3045CTFP
1
2
3
R4032
10K
C4008
0.01/250
C4004
0.068/275
D4007
1SS352
R4027
1.5K
C4016
no_use
C4021
1/16
CB402
D 4 0 0 1
D 5 S B A 6 0
R4025
100
R4010
0
C4031
220/10
W4001B
VH-5298T
F4002
s405
C 4 0 2 6
3 3 0 0 / 1 6
TE401
R-30190(26)3C
C4017
s409
R4035
10K
CB404
XHI
R4009
100
IC402
IC403
TLP785(D4-GR,F)
AC A
E C
DG5D1-O(M)-II_T
RY401
D4017
no_use
L4004
1 2
3 4
L4003
2.2UH
C4027
3300/16
L4002
s404
12
3 4
R4011
2 2
C4029
no_use
TLP785(D4-GR,F)
AC A
E C
D4008
1SS352
C 4 0 2 3
1 / 5 0
D4005
SARS05
R4033
no_use
ZX61220
HS401
PUE16-40
C 4 0 2 4
3 3 0 0 / 1 6
Q4003
D2704(K)
ST401
R4018
s415
C4019
1/16
R4017
s414
C4009
220P/50
R4015
220K
C4013
s407
R4022
100
C4036
1/25
D4013
1SS352
C4005
0.068/275
C4020
0.1/50
D4018
1SS352
C4015 47/50
C4032
no_use
C4033
s410
C4035
1/25
D4014
1SS352
R4024
100K
C4011
100P/50
D4006
SARS05
C4034
s410
C4010
2200P/50
R4001
1/2P3M
C4014
s407
C 4 0 2 5
3 3 0 0 / 1 6
Q4002
2N5551C-AT/P
C4022
0.01/50
D4016
no_use
R4019
4.
7
204TS
D 4 0 0 4
S A R S 0 5
C4012
0.1/50
ZX61220
HS403
F4001
2.0A250V
R4012
270
TH401
4D2-18_LCS
TL431LIAIDBZR
IC404
C
REF
A
G4001
TP00385
3G2G 1G
STF8N80K5
Q4001
W4002
6P 300MM B&C
R4037
0
R4038
0
L4005
s403
12
3 4
C4018
6800P/250
C4037
6800P/250
R4028
2.2K
C4028
0.033/16
C4039
s411
C4038
s411
R4029
100
T4001
SH11399A
1
2
3
4
6
7
9
1 0
1 1
1 2
1 3
1 4
R4003
1P12
R4004
1P12
R4005
1P12
R4008
1P12
R4006
1P0.12
R4007
1P0.12
R4020
0.75P2.2
C4040
no_use
IC405
no_use
1
ADJ
2
GND
3
C E
4
VDD
5
VOUT
R4041
no_use
R4039
no_use
C4041
no_use
R4040
no_use
CB405
no_use
1
2
R4042
0.75P240K
R4002
0.75P240K
C4007
1000P/630
C4042
1000P/630
C4043
1000P/630
C4044
1000P/630
F4003
2.00A/63V
C4001
220P/250
C4002
220P/250
J4001
s402
J4002
s402
GND
MAIN
5.5V
DGND
TRANSFORMER
from AMPPOW(1)
4001-4100
401-410
Black
GND
Red
OP E( 1)
WE77420
to D IGITAL
AC_DC
SECONDARY
ACPWR_DET
PRY
POWER CORD
to D IGITAL
PRIMARY
+3.3M
1 5
OUT VCC V H
GND
C S F B
LAT
WE77420 WE77420
5.5V
A6A J/A8A GOLD ZD53910
A4A/A6A EX SILVER ZD53870
A6A/A4A 100V WQ21120 10A
A6A/A4A 200V WB76060 6.3A
200V VCC5800 50mH
100V VCC5790 30mH
A6A/A8A J dest. 250V WU53640 10A
5 V
GND
ACDC_FAN_EN
to A CDC FAN
Dest
UCVPS
A4A
T K
J
A6A
RAL
MAIN TRANSFORMER
BGFE
Part No
A8A
YM164
YM168
YM165
YM166
YM167
YM154
YM163
YM155
YM156
YM157
ACDC FAN
POWER SUPPLY
Destination Part List
+--------+---------------+---------------+---------------+---------------+
| sxx | LOCATION | J | UCVPS | RTKABGLF |
+--------+---------------+---------------+---------------+---------------+
| s402 | J4001 | VEA5290 | VEA5290 | X |
| | J4002 | VEA5290 | VEA5290 | |
+--------+---------------+---------------+---------------+---------------+
| s403 | L4005 | VCC5790 | VCC5790 | VCC5800 |
| | | 30MH | 30MH | 50MH |
+--------+---------------+---------------+---------------+---------------+
| s404 | L4002 | X | X | ZN10830 |
| | | | | 10MH |
+--------+---------------+---------------+---------------+---------------+
| s405 | F4002 | WQ21120 | WQ21120 | WB76060 |
| | | 10A125V | 10A125V | T6.3AL250V |
+--------+---------------+---------------+---------------+---------------+
| s406 | C4006 | WF76440 | WF76440 | WF76500 |
| | | 820/200 | 820/200 | 220/400 |
+--------+---------------+---------------+---------------+---------------+
| s407 | C4013 | ZP42540 | ZP42540 | ZP42340 |
| | C4014 | 0.047/500 | 0.047/500 | 0.022/630 |
+--------+---------------+---------------+---------------+---------------+
| s409 | C4017 | ZH37770 | ZH37770 | WQ90220 |
| | | 4700P/250 | 4700P/250 | 2200P/250 |
+--------+---------------+---------------+---------------+---------------+
| s410 | C4033 | X | X | UV24610 |
| | C4034 | | | 1/25 |
+--------+---------------+---------------+---------------+---------------+
| s411 | C4038 | UZ66310 | UZ66310 | X |
| | C4039 | 1000P/50 | 1000P/50 | |
+--------+---------------+---------------+---------------+---------------+
| s414 | R4017 | WW86460 | WW86460 | WW86530 |
| | | 1.0K | 1.0K | 2.7K |
+--------+---------------+---------------+---------------+---------------+
| s415 | R4018 | WW86370 | WW86370 | WW86530 |
| | | 220 | 220 | 2.7K |
+--------+---------------+---------------+---------------+---------------+
IC402, IC403: TLP785(D4-GR,F)
Photocoupler GaAs IRED & Photo−Transistor
1
2
3
4
1 : Anode
2 : Cathode
3 : Emitter
4 : Collector
IC401: FA8A61N
GreenChip synchronous rectifier controller
IC404: TL431LIAIDBZR
Programmable Shunt Regulator with Optimized Reference Current
CATHODE
REF
ANODE
+
_
V
ref
Subtransformer
Power
transformer
AC IN
to POWER TRANSFORMER
5 k-ohms
10 W
Primary side ground
OPERATION (1)
REMARKS
CAPACITOR
PARTS NAME
NO
NO
MARK
MARK
ELECTROLYTIC CAPAC I T O R
CERAMIC CAPACI T O R
POLYESTER FILM CA P A CIT O R
POLYSTYRENE FILM C A P A C I TOR
MICA CAPACITOR
POLYPROPYLENE F I L M CAPACITOR
SEMICONDUCTIVE CERAMI C CAPACITOR
P
SOLID ELECTROLYTIC CAPAC ITOR
TUBULAR CAPACITORCERAMIC
NOTICE
U.S.A
G
CANADA
EUROPEAN STANDARD
L
CHINA
AUSTRALIA
SINGAPORE
KOREA
GENERAL
U
C
T
A
K
R
JAPAN
(model)
B BRITISH
J
SOUTH EUROPEE
V TAIWAN
F RUSSIAN
P LATIN AMERIC A
S BRAZIL
H THAI
RESISTOR
REMARKS
NO MARK
PARTS NAME
CARBON
CARBON
METAL
METAL
METAL
FIRE
CEMENT
SEMI
FILM RESIS TOR
FILM RESIS TOR
OXIDE FILM RESISTOR
FILM RE SISTOR
PLATE RESISTOR
PROOF CARBON FILM RESISTO R
MOLDED RESI STOR
VARIABLE R E S I STOR
(P=5)
(P=10)
CHIP RESIST O R
Page 85 A3
to DIGITAL
CB122
Page 82 A6
to DIGITAL
CB80
Page 99 F10
to AMPPOWER
W3009
AC120Vin
AC230Vin
AC120Vin 300Vpeak
AC230Vin 470Vpeak
AC120Vin 169V
AC230Vin 325V
AC120Vin 11.5V
AC230Vin 10V
AC120Vin 2.8Vpeak AV230Vin 2.6Vpeak
AC120Vin 169V
AV230Vin 325V
Primary earth
7.2Vpeak
5.6V
5.3V
5.5V
4.4V
2.6V
Supply +3.3V
When AC power cord connected,ACPWR_DET comes +3.3V.
Secondary earth
OPERATION 1/3
Details of colored lines
Red / full line: Power supply (+)
Red /dashed line: Power supply (-)
Orange: Signal detect
Yellow: Clock
Green: Protection detect
Brown: Reset signal
Blue: Panel key input
★ All voltages are measured with a 10 MΩ/V DC electronic
voltmeter.
★ Components having special characteristics are marked ⚠
and must be replaced with parts having specifications equal
to those originally installed.
★ Circuit diagram is subject to change without notice.
● 電圧は、内部抵抗 10 MΩ 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
ことがあります。
Safety measures
• Some internal parts in this product contain high voltages and are dangerous. Be sure to take safety measures
during servicing, such as wearing insulating gloves.
• Note that the capacitors indicated below are dangerous even after the power is turned off because an
electric charge remains and a high voltage continues to exist there. Before starting any repair work, connect a
discharging resistor (5k-ohms/10W) to the terminals of each capacitor indicated below to discharge electricity.
The time required for discharging is about 30 seconds per each.
C4006 on OPERATION (1) P.C.B.
安全対策
・ この製品の内部には高電圧部分があり危険です。修理の際は、絶縁性の手袋を使用するなどの安全対策を行っ
てください。
・ 下記のコンデンサには電源を OFF にした後も電荷が残り、高電圧が維持されており危険です。修理作業前に放
電用抵抗（5kΩ /10W）を下記の各コンデンサの端子間に接続して放電してください。放電所用時間は各々約
30 秒間です。
OPERATION (1) P.C.B. の C4006