![background image](http://html.mh-extra.com/html/yamaha/ax-v565/ax-v565_service-manual_894862124.webp)
★
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
RX-V565/HTR-6250/AX-V565
124
VIDEO 3/3
IC374
IC371
IC372
IC375
CB379
CB381
CB382
W3801
CB354
IC353
CB351
CB352
CB391
CB378
CB371
CB373
CB372
W3701B
W3701A
CB375
CB374
W3702A
W3702B
W3602
CB353
IC352
IC351
IC353
IC353
IC391
JK391
JK361
W3601
JK362
IC391
IC391
IC353
Primary side ground
0
0
0
0
0
3.4
3.4
3.2
0.3
0.2
0
3.2
0
3.2
0.2
0.9
0
5.1
(16.9)
(5.9)
5.6
3.9
0
2.6
3.9
0
(0.2)
(0.2)
5.5
5.6
0.7
(0.2)
(0.2)
0
(0)
(0) (0) (0) (0)
(137.1)
(5.9)
(2.9)
(16.9)
(55.4)
(137.2)
(137.2)
(289.9)
(16.9)
(2.9)
(290.5)
(137.1)
(0)
(54.8)
0
0.2
5.0
0
0
0
0
5.0
0
0
0
2.3
-4.8
0
0
-4.8
0
0
5.0
5.0
0
0
5.0
5.0
0
0
5.0
5.0
0
0
0
0
0
-4.8
0
0
0
5.1
0
0
0
0
0
0
0
0
0
0
0
5.0
0
0
5.0
0
5.0
0
0
0
0
0
0
0
0
0
1
W3801
(+5.5V)
CB382
(/RESET)
2
POWER ON
POWER OFF
1
W3801
(+5.5V)
CB382
(/RESET)
2
POWER ON
POINT
F 1 / W3801 (+5.5V), 2 / CB382 (/RESET)
F
1
2
IC353
: TC74HC4053AF
Analog multiplexer/demultiplexer
INPUT STATES
INHIBIT
0
0
0
0
0
0
0
0
1
"ON" CHANNEL (S)
0X, 0Y, 0Z
1X, 0Y, 0Z
0X, 1Y, 0Z
1X, 1Y, 0Z
0X, 0Y, 1Z
1X, 0Y, 1Z
0X, 1Y, 1Z
1X, 1Y, 1Z
NONE
C
0
0
0
0
1
1
1
1
X
B
0
0
1
1
0
0
1
1
X
A
0
1
0
1
0
1
0
1
X
BINARY TO 1-OF-8
DECODER WITH INHIBIT
LEVEL
CONVERTER
VCC
INHIBIT
A
B
C
GND
VEE
0X
1X
0Y
1Y
0Z
X-COM
Z-COM
Y-COM
SW
SW
SW
SW
SW
SW
11
6
16
10
9
8
7
12
13
2
5
3
1
14
15
4
IC351, 352
: TC74HC4052AF
Analog multiplexer/demultiplexer
16
VCC
6
INH
10
A
9
B
8
GND
7
VEE
12
0X
14
1X
15
2X
11
3X
1
0Y
5
1Y
2
2Y
4
3Y
LEVEL
CONVERTER
BINARY TO 1-OF-4
DECODER WITH INHIBIT
SW
SW
SW
SW
SW
SW
SW
SW
13
X-COM
3
Y-COM
INHIBIT
0
0
0
0
1
B
0
0
1
1
X
A
0
1
0
1
X
0x, 0y
1x, 1y
2x, 2y
3x, 3y
NONE
IC391
: TC74VHCU04FT
Hex inverters
VCC
6A
5A
4A
6Y
5Y
4Y
GND
3Y
3A
2A
1A
2Y
1Y
1
2
3
4
5
6
7
14
13
12
11
10
9
8
IC371
: TOP254PN
TOPswitch-HX
SOFT START
+ 16
SHUTDOWN
AUTO-RESTART
HYSYERETIC
THERMAL
SHUTDOWN
LEADING
EDGE
BLANKING
CONTROLLED
TURN-ON
GATE DRIVER
CURRENT LIMIT
COMPARATOR
CURRENT
LIMIT
ADJUST
VI(LIMIT)
DCMAX
DCMAX
KPS(UPPER)
IPS(UPPER)
IFB
KPS(LOWER)
IPS(LOWER)
DMAX
INTERNAL UV
COMPARATOR
INTERNAL
SUPPLY
0
1
SHUNT REGULATOR/
ERROR AMPLIFIER
5.8V
4.8V
5.8V
Z
C
I
FB
V
BG
+V
T
V
C
ON/OFF
STOP
OFF
PWM
OVP
LINE
SENSE
V
OV/
UV
F REDUCTION
F REDUCTION
CLOCK
SOFT
START
S
R
Q
SOFT START
OSCILLATOR
WITH JITTER
STOP LOGIC
CONTROL (C)
DRAIN (D)
SOURCE (S)
SOURCE (S)
MULTI-
FUNCTION (M)
KPS(UPPER)
KPS(LOWER)
IC374
: TL431ACLPR
Adjustable precision shunt regulators
Vref
REF
CATHODE
ANODE
VIDEO (8)
VIDEO (9)
VIDEO (7)
VIDEO (2)
VIDEO (3)
J model
B, G, E, F models
U, C, T, K, A, B, G, E, F, J models
DETECTOR
S VIDEO
AV 5
AC IN
SUB
TRANSFORMER
L3 SELECTOR
CONTROL
L1, L2 SELECTOR
D4 VIDEO
注意!
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。
・ 下記箇所には電源を 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)
を下記箇所の端子間に接続して放電してください。放電所用時間は約 30 秒間です。
VIDEO
(
2
)
P.C.B.
の
C3703
CAUTION !
Safety measures
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t/PUFUIBUQPTJUJPOTJOEJDBUFECFMPXBSFEBOHFSPVTFWFOBGUFSUIFQPXFSJTUVSOFEPGGCFDBVTFBOFMFDUSJDDIBSHFSFNBJOTBOEBIJHIWPMUBHFDPOUJOVFTUPFYJTUUIFSF
#FGPSFTUBSUJOHBOZSFQBJSXPSLQFSGPSNEJTDIBSHFCZDPOOFDUJOHBEJTDIBSHFSFTJTUPS LPINT8CFUXFFOUFSNJOBMTBUGPMMPXJOHQPTJUJPOT5IFUJNFSFRVJSFEGPS
EJTDIBSHJOHJTBCPVUTFDPOET
$PO7*%&0 1$#
5 k-ohms
10 W
to DIGITAL_CB7
Page 113
M8
to VIDEO (1)_CB301
Page 122
C2
to DIGITAL_CB24
Page 114
F2
to DIGITAL_CB73
Page 117
E1
to MAIN (4)_W1006A, W1006B
(R, L models)
Page 120
J8
Summary of Contents for AX-V565
Page 4: ...4 RX V565 HTR 6250 AX V565 RX V565 HTR 6250 AX V565 AX V565 J model HTR 6250 U C K F models ...
Page 112: ...RX V565 HTR 6250 AX V565 112 MEMO MEMO ...
Page 147: ...147 RX V565 HTR 6250 AX V565 RX V565 HTR 6250 AX V565 ...
Page 148: ...148 RX V565 HTR 6250 AX V565 RX V565 HTR 6250 AX V565 ...
Page 149: ...149 RX V565 HTR 6250 AX V565 RX V565 HTR 6250 AX V565 MEMO ...
Page 150: ...RX V565 HTR 6250 AX V565 ...