Yamaha DSP-AX757 Servicehandleiding - Pagina 45

Blader online of download pdf Servicehandleiding voor {categorie_naam} Yamaha DSP-AX757. Yamaha DSP-AX757 49 pagina's. Av receiver/av amplifier

Pagina afdrukken
Yamaha DSP-AX757 Servicehandleiding
A
B
C
RX-V757/DSP-AX757/DSP-AX757SE
RX-V657/HTR-5860
SCHEMATIC DIAGRAM (SUBTRANS)
1
TO POWER TRANSFORMER (U, C, T, K, A, B, G, E, J)
or SUBTRANS (5) W291A (R, L)
Page 92
D-3
TO POWER CABLE
2
5.0
~
~
5.0
~
~
~
~
~
~
4.9
5.2
~
~
0
5.0
~
~
~
~
0.2
~
0
5.0
~
0.2
~
0
0
~
~
~
~
~
0
0
~
~
~
0
0
~
~
~
~
3
~
0
10.0
~
1.0
1.0
10.0
0.8
~
0
0.1
0.1
10.0
4
5
C-INPUT SELECTOR
0
4.7
0
0
0
0
0
0
-0.2
0
0
4.9
-4.9
0
0
0
Y-INPUT SELECTOR
VIDEO DRIVER
6
0
4.7
0
0
0
0
0
0
0
0
0
0
0
4.9
0
-4.9
0
0
0
0
-4.9
0
0
-4.9
-4.9
0
0
3.6
0
0
-4.9
0
0
7
4.8
4.8
4.8
-0.4
0.2
0.9
0.1
-0.6
0.2
-0.2
0.5
1.0
0.5
-4.9
8
IC402 : TC4013BP
IC609, 903 : TC74HCU04AFEL
Dual D Flip Flop
Hex Inverters
1A
1
14
V
1
DD
1Q
14
VDD
Q
1Y
2
6A
2
13
1Q
Q
13
2Q
Q
3
2Q
2A
3
12
6Y
1CP
CP
Q
12
9
2Y
4
11
5A
1CL
4
CL
CP
11
2CP
3A
5
10
5Y
1DATA
5
D
CL
10
2CL
1PR
6
3Y
6
9
4A
PR
D
9
2DATA
VSS
7
PR
8
2PR
V
SS
7
8
4Y
IC603, 604 : MM74HC4053SJX
IC601, 602 : MM74HC4051SJX
Analog Multiplexers/Demultiplexers
Analog Multiplexers/Demultiplexers
INHIBIT
VDD
6
16
A
11
LEVEL
BINARY TO 1-OF-8
A
11
B
10
CONVERTER
DECODER WITH INHIBIT
C
9
VSS
8
VEE
7
B
10
10
X0
SW
13
X1
14
SW
INPUT STATES
"ON" CHANNEL (S)
C
9
X2
15
SW
INHIBIT
C
B
A
0
0
0
0
0
X3
X
12
SW
3
1
0
0
0
1
0
0
1
0
2
X4
1
SW
1
INH
0
0
1
3
6
X5
5
SW
0
1
0
0
4
1
0
1
5
0
X6
2
SW
0
1
1
0
6
0
1
1
1
7
X7
4
SW
1
X
X
X
NONE
92
D
E
F
RX-V757/DSP-AX757/DSP-AX757SE/RX-V657
Page 94
I-3
TO CONVERSION (2) CB831
TO FUNCTION (1) CB302
Page 94
J-3
TO CONVERSION (2) CB832
TO FUNCTION (1) CB301
Page 92
G-8
TO SUBTRANS (2) W719B
AC 152.6
Page 92
E-8
TO CONVERSION (1) CB705
4
TO SUBTRANS (3) CB601
AC 7.5
~
Page 87
Page 92
F-4
TO FUNCTION (2) CB902
TO SUBTRANS (3) CB603
TO POWER TRANSFORMER
Page 92
H-3
TO SUBTRANS (2) CB462
TO SUBTRANS (7) CB447
0.7
S-SIGNAL DETECTOR
4.8
0
0.7
4.8
-0.1
0
0
0.7
4.8
0
0.9
0
0.3
2.5
2.5
2.5
2.5
2.5
2.5
-0.1
-0.5
0
4.3
-4.9
4.3
0
4.7
4.7
4.3
-0.5
0
0
0
4.7
0
0
-0.2
0
0
0
4.4
-4.9
0
4.7
-0.1
4.8
0
-0.1
4.7
4.1
0
0.9
0.5
0.9
4.7
4.1
-0.5
0
0
-4.9
0
-4.9
-1.0
0.2
-0.6
-4.9
-1.8
4.7
0.5
-0.6
-0.5
-0.1
0
0
-0.1
4.7
0
4.7
-4.9
4
Y/C MIX
4.8
4.8
4.8
0.9
1.6
0
0.6
0.3
0.9
ON SCREEN
Page 92
E-2
TO SUBTRANS (8) CB445
IC606 : LC74781-9798
On-screen Display Controller
CS
SERIAL
8 BIT
LATCH
SIN
+
COMMAND
PARALLEL
CONVERSION
DECODER
SCLK
HORIZONTAL
VERTICAL DIRECTION
HORIZONTAL
VERTICAL
DIRECTION
CHARACTER SIZE
DISPLAY
CHARACTER SIZE
POSITION
POSITION
REGISTER
REGISTER
REGISTER
REGISTER
RST
HORIZONTAL
VERTICAL
HORIZONTAL
VERTICAL
SIZE COUNTER
SIZE COUNTER
DOT COUNTER
DOT COUNTER
VDD1
VSS1
HORIZONTAL
VERTICAL
DISPLAY POSITION
DISPLAY POSITION
DETECTION
DETECTION
VDD2
CHARACTER
CHARA
CONTROL
CONTROL
COUNTER
COUNTER
SYNCHRONOUS
DISTINCTION
VDD
OSC IN
CHARACTER
16
OUTPUT
DOT CLOCK
OSC OUT
GENERATOR
SYNCHRONOUS
TIMING
GENERATOR
SIGNAL
SYN IN
GENERATOR
COMPLEX
14
X-COMMON
SYNCHRONOUS
SYNCHRONOUS
SEP C
SIGNAL
SEPARATION
SEPARATION
CONTROL
SEP OUT
OUT C IN
12
OX
CTRL
CTRL
XTAL
SEP IN
2
1
IN
OUT C IN
13
IX
CTRL3
OUT C IN
2
OY
OUT C IN
1
IY
OUT C IN
5
OZ
CONTROL INPUTS
"ON" CHANNEL
INHIBIT
C
B
A
0X (Pin 12), 0Y (Pin 2), 0Z (Pin 5)
OUT C IN
IZ
3
(Pin 6)
(Pin 9)
(Pin 10)
(Pin 11)
1X (Pin 13), 1Y (Pin 1), 1Z (Pin 3)
L
L
L
L
0X, 0Y, 0Z
L
L
L
H
1X, 0Y, 0Z
4
Z-COMMON
L
L
H
L
0X, 1Y, 0Z
L
L
H
H
1X, 1Y, 0Z
15
Y-COMMON
L
H
L
L
0X, 0Y, 1Z
L
H
L
H
1X, 0Y, 1Z
L
H
H
L
0X, 1Y, 1Z
L
H
H
H
1X, 1Y, 1Z
8
7
H
*
*
*
NOTE
VSS
VEE
* Don't Care
G
H
Page 87
B-2
Page 87
B-2
UU24933
UU24933
UU24933
UU24933
UU24933
UU24933
UU24933
3300/25
3300/25
3300/25
3300/25
3300/25
3300/25
3300/25
Page 94
C-9
Page 94
B-3
Page 92
E-4
TO CONVERSION (1) CB704
TO SUBTRANS (3) CB602
L-5
Page 92
E-3
REGULATOR
Page 90
G-10
4.8
0
TO MAIN (2) CB122
4.8
2.1
0
0.4
4.9
4.9
Page 90
F-1
TO MAIN (1) W10
REGULATOR
3
CH 1
10.0
5.6
5.6
4.9
4.9
4.9
0
4.3
5.6
5.1
5.6
4.9
0.1
5.0
0.1
L
4.9
0
4.5
4.7
Page 92
E-2
Page 88
C-8
TO SUBTRANS (4) W719A
TO OPERATION (1) CB801
FLASHING &
DISPLAY
RAM
DISPLAY
CONVERSION
CONTROL
WRITE
CONTROL
ADDRESS
REGISTER
REGISTER
COUNTER
FLASHING &
DISPLAY
CONVERSION
DECODER
RAM
CONTROL
CIRCUIT
LINE
DECODER
FONT ROM
0.1/16
CHARACTER OUTPUT CONTROL
SHIFT
BACKGROUND CONTROL
REGISTER
VIDEO OUTPUT CONTROL
330
XTAL
BLANK
CV
CV
OUT
IN
OUT
ON SCREEN
(Specifications for the beginnings of production) /
（生産初期の仕様）
I
J
K
DSP-AX757
RX-V757/RX-V657
DSP-AX757SE
RX-V757
RX-V657
UU24933
UU24933
3300/25
3300/25
X: NOT USED
X: NOT USED
X: NOT USED
X: NOT USED
Page 87
C-1
Page 87
E-1
Page 87
L-1
TO FUNCTION (1) CB303
TO FUNCTION (1) CB304
TO FUNCTION (2) CB901
SW
4.9
-12.0
4.9
4.9
-12.0
4.9
4.9
-12.0
4.9
4.9
4.9
4.2
0
0
4.9
4.9
4.9
0.1
4.9
0.1
4.9
0.1
4.9
4.9
CPU
4.9
4.9
0
4.9
4.9
4.9
4.9
4.9
2.1
3
0
2
0.4
CH 2
4.9
4.9
4.9
1.0
4.9
4.9
4.2
4.9
4.9
0
4.9
3.6
0.1
4.9
0
4.9
0.1
4.9
0.1
2
Page 85
J-1
TO DSP CB1
4
IC901 : M35012-133SP
On-screen Display Controller
1
2
18
19
TIMING
SIGNAL
SEPARATION
TUNING
SIGNAL
CS
3
SELECTOR
OSC
INPUT
(DISPLAY)
TUNING
17
SCK
4
SIGNAL
CONTROL
H COUNTER
OSC
16
SIN
5
DATA
ADDRESS
DISPLAY
CONTROL
CONTROL
POSITION
DETECTOR
TIMING
TIMING
GENERATOR
GENERATOR
DISPLAY
CONTROL
ADDRESS READ
REGISTER
CONTROL
8
NTSC
DISPLAY
DISPLAY DATA MEMORY
VIDEO
9
CONTROL
OUTPUT
10
V
DD
1
20
12
BLANKING
SHIFT
DISPLAY CHARACTER ROM
AC
6
CIRCUIT
REGISTER
13
V
SS
11
14
V
DD
2
7
15
L
M
N
DSP-AX757
RX-V757/RX-V657
DSP-AX757SE
RX-V757
RX-V657
X: NOT USED
DSP-AX757
RX-V757/RX-V657
DSP-AX757SE
RX-V757
RX-V657
X: NOT USED
IC453 : LC72722PM
RDS Decoder
1
5
6
VDDA
3
+
CLOCK
14
PLL
RECOVERY
REFERENCE
(57kHz)
(1187.5Hz)
VOLTAGE
VSSA
4
15
VREF
57kHz
SMOOTHING
DATA
MPX IN
ANTIALIASING
2
bpf
19
FILTER
FILTER
DECODER
(SCF)
DO
20
CL
21
18
RAM
ERROR CORRECTION
SYNC/EC
DI
22
CCB
(24 BLOCK DATA)
(SOFT DECISION)
CONTROLLER
24
CE
23
CLK(4.332MHz)
T1
7
MEMORY
T2
CONTROL
8
TEST
SYNC
SYNC
DETECT-1
DETECT-2
T3
9
OSC/DIVIDER
T4
10
11 16 17
13
12
IC605 : LA7109
IC607, 608 : TK15420M
75Ω Video Driver
Video Amp
VIN1+
+VCC1
1
36
OUT
1
1
8
+V
CC
NFB1
2
6dB
DR
35
VOUT1
–IN
1
2
7
OUT
2
+
–
+
–
+IN
3
6
–IN
1
2
MUTE1
3
34
GND
–V
4
5
+IN
CC
2
VIN2+
VOUT2
4
33
NFB2
5
6dB
DR
32
DR CTL2
Point w (Pin 13 of IC451)
–VCC1
6
31
VOUT3
VIN3+
7
30
MUTE4
NFB3
8
6dB
DR
29
–VCC4
N.C.
N.C.
9
28
N.C.
10
27
N.C.
VIN4+
+VCC2
11
26
NFB4
12
6dB
DR
25
VOUT4
MUTE2
13
24
GND
Point e
CH 1 : Cathode of D452
VIN5+
VOUT5
14
23
CH 2 : Pin 12 of IC451
NFB5
15
6dB
DR
22
DR CTL1
–VCC2
16
21
VOUT6
VIN6+
17
20
MUTE3
NFB6
18
6dB
DR
19
–VCC3
↑
↑
AC POWER ON
AC POWER OFF
(Connect the power cable)
(Disconnect the power cable)
Point r (Pin 3 of IC606)
↑
AC POWER ON
(Connect the power cable)
* All voltages are measured with a 10M Ω /V DC electronic volt meter.
OSC IN
* Components having special characteristics are marked Z and
OSC OUT
must be replaced with parts having specifications equal to
those originally installed.
* Schematic diagram is subject to change without notice.
CVIDEO
* 電圧は、内部抵抗10MΩの電圧計で測定したものです。
LECHA
CVIN
* Z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、
P0
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。
P1
P2
* 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。
P3
O
VDDD
VSSD
RDS-ID
SYNC
SYR