Service manual

ABCDEFGH
1
2
3
4
5
6
IJKLMNO
7
8
9
10
94
RX-V757/DSP-AX757/DSP-AX757SE
RX-V657/HTR-5860
■ SCHEMATIC DIAGRAM (CONVERSION)
INPUT
SELECTOR
ZONE 2
SELECTOR
PHONO MM
EQ AMP
COMPONENT
CONVERSION
1H
DELAY LINE
REGULATOR
Y/C
SEPARATER
REGULATOR
VIDEO
AMP
COMPONENT
SELECTOR
REGULATOR
ANALOG IN
(DVD)
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
-7.6
7.7
-12.0
-7.0
12.07.0
0
0
0
-11.7
0
0
0
11.6
-7.6
0
0
7.7
0
-7.0
0
6.9
0
0
0
0
0
0
0
0
0
0
2.5 2.5
2.5
2.4
0
0
0
00 0 000 0
0
4.9
2.5 2.5
2.5
2.4
0
0
0
00 0 000 0
0
4.9
0
0
0
0
0
-5.1
0
-5.1
0
-5.1
4.9
0
-5.1
0
5.0 5.0
0
5.0
0
5.0
0
0
0
0
0
0
0
0.1
0.1
0
00
0
0
0
0
0
-5.1
0
0
0
0
0.1
0.1
-2.7 3.4 2.9 0.9 0.1
-0.5
4.9
0
0.1
18.5
19.1 9.019.2
0
1.1
-5.1
0
4.9
0
5.0 1.9
-9.2
5.0
0
-9.2
-9.3
-9.2
-8.6
-11.2
7.8
0
-2.7
4.9
-3.4
3.4-3.4
0.1
3.4
2.8
4.3
4.5 4.5
4.1
9.0
1.3
1.2
4.1
4.4
2.3
2.4
0
2.4
4.9
2.4
4.5 4.5
4.3
5.2 5.2
1.4 3.9
4.5 4.5
0 10.1 3.4 1.5
1.5
3.4
4.9
3.4
2.8 4.9
0
0.6
3.4
2.24.9
1.4
3.1
2.2
1.8
4.9
0
4.9
4.9
4.9
1.6
4.9
2.2
0.7
4.9
1.2
0.7
4.2
1.2
2.9
4.9
4.2
4.9
2.2
1.6
0.7
4.9
1.3
0.7
4.2
1.3
3.4
0
0
0
-5.1
0
1.1 1.1
4.9
-5.1
0
4.9
4.9 2.1
0 4.9
0
5.7
4.9
4.9 5.6 5.6 5.7 5.7 5.7
1.6
4.9
4.9
0
1.5
0.1
2.4
2.5
0
0
0
4.4
9.0
9.0
0.8
0
1.2
4.0 4.0
2.1
0
1.8
6.3
2.5
7.4
0
5.9
2.9
0
4.9
0
4.9
4.9
4.9
4.2
1.8
3.1
0
4.9
2.4
1.8
4.9
0
2.2
0
0
0
0
0
5 6 7
RX-V757 (U, C, A, G), RX-V657 (U, C, A, B, G, E) models
DSP-AX757SE model
5
7
6
2
1
3
8
4
1
2
3
7
6
5
D1938F (S/T)
VZ725900
D1938F (S/T)
VZ725900
D1938F (S/T)
VZ725900
470P
UA65247
X: NOT USED
Page 91 I-3
TO POWER (1) W352
TO SUBTRANS (2) CB463
RX-V757/DSP-AX757/DSP-AX757SE/RX-V657
Page 93 I-2
Page 92 H-3
HTR-5860
TO SUBTRANS (8) CB446
RX-V757/DSP-AX757/DSP-AX757SE/RX-V657
Page 93 E-2
Page 92 F-3
HTR-5860
TO SUBTRANS (6) CB441
RX-V757/DSP-AX757/DSP-AX757SE/RX-V657
Page 92 F-1
HTR-5860 : N.C.
TO SUBTRANS (6) CB442
RX-V757/DSP-AX757/DSP-AX757SE/RX-V657
Page 93 F-2
Page 92 F-1
HTR-5860
Page 95 I-4
TO XM CB23
R, T, L
A, B (RX-V657),
G, E
B (DSP-AX757SE)
R, T, L
A, B (RX-V657), G, E
B (DSP-AX757SE)
RX-V757, DSP-AX757,
DSP-AX757SE models
RX-V757, DSP-AX757,
DSP-AX757SE models
* All voltages are measured with a 10M Ω /V DC electronic 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.
* 電圧は、内部抵抗10MΩの電圧計で測定したものです。
* 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、
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。
IC710 : TA8772AN
Delay System for Color TV or VCR
Clock
CCD 1H
REF
S/H
CCD 1H
REF
S/H
Bip. Block
CCD Block
30
R-Y OUT
x1 or x1/2
Pulse
Remove
29
B-Y OUT
x1 or x1/2
Pulse
Remove
AGC
Det
27
R-Y IN
28
B-Y CLAMP
DET.
Clamp
Pulse
Ins.
Pulse
HP. GP
225fH
VCO
LPF
AGC
Clamp
26
B-Y IN
25
MODE SW2
24
MODE SW1
23
B-Y FROM
CCD
22
R-Y FROM
CCD
21
GND
20
VGG
19
VOUT1
18
VDB1
17
VDB2
16
1 2 43 5 6 7 8 9 10 11 12 13 14 15
VOUT2
R-Y CLAMP
DET.
R-Y TO
CCD
R-Y AGC
DET.
B-Y TO
CCD
VCC FILTER
ADJ.
S.C.P. IN B-Y AGC
DET.
PLL
DET.
CLOCK CLOCK IN VSS VIN1 VDD VIN2
Clamp
Pulse
Ins.
AGC
Det
LPF
AGC
Clamp
Ave
Bias
Det
1/225
IC833 : NJM2068MD-TE2
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
IC831, 832 : BD3841FS
Function Switch
F-SW1
F-SW1: INPUT FUNCTION 1
F-SW2: INPUT FUNCTION 2
32 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
DGND
F-SW2
CL DA VEE GND VCC RECA1 RECA2 RECB1 RECB2 RECC1 RECC2 OUT1 OUT2 INI1 INI2
INA1 INA2 INB1 INB2
INC1 INC2 IND1 IND2
INE1 INE2
INF1 INF2
ING1 ING2
INH1 INH2
LOGIC
+ – + – + – + –
IC711 : TA1270BF
Sync Processing System
32fH
VCO
NOSE
DET
H. AFC
35
DAC TEST
36
GND
VCX0
V
SEP
CW
MATRIX
34
SDA
33
SCL
32
Ys
31
R-Y1 IN
30
B-Y1 IN
29
Y1 IN
28
I
2
C GND
27
R-Y2 IN
26
B-Y2 IN
25
Y2 IN
43 5 6 7 8 9 10 11 12 13 14
15
APC3.58MHz
X'tal
37
Y OUT
38
DAC2
21
M-X'tal4.43MHz
X'tal
C GND C IN V-SEP SYNC
IN
SYNC
OUT
H. AFC SYNC
GND
32fH
VCO
VD OUT HD OUT
SCP OUT
16
Dig GND
17
CP/HP IN
18
SYNC Vcc
(9V)
19
SW Vcc
(9V)
20
Y/G OUT
21
B-Y/B OUT
22
R-V/R OUT
23
ADRS SW
24
SW GND
48
R-Y/Cr OUT
47
B-Y/Cb OUT
46
SECAM CONT
45
1HDL CONT
44
fsc OUT
43
UV/CbCr SW
42
C Vcc
(5V)
41
DAC Vcc
(5V)
40
Y IN
39
DAC1
LPF / fsc
TRAP
CbCr / UV
SW
SECAM
CONTROL
ACC
fsc
APC
DAC2 Ys
TOF
SYSTEM
SW
P/N ID
DAC
TEST
DEMO
OFFSET
SW
TINT
SYNC
SEP
SUB
COLOR
CP/HP
IN
CHROMA
BLK
BPF
SW
SW
1H DL
CONTROL
PEDESTAL
CLAMP
DAC1
SCP
SW
H C/D V C/D
Y DL
Y DL
fsc
TRAP
SUB.
CONTRAST
YUV RGB
MATRIX
Y OFFSET
SW
PEDESTAL
CLAMP
PEDESTAL
CLAMP
HI : 2ch/LOW : 24h
I
2
C BUS
CONTROL
IC705 : TC90A49F
3 Line Digita Y/C Separatoy
15
CKIN
17
FIL
24
8 fsc
4 fsc
5
AIN
Y OUT
LINE
MEMORY
C-BPF
LINE
MEMORY
+
–
C-BPF
DYNAMIC COMB FILTER
VERTICAL EDGE
ENHANCEMENT CIRCUIT
ANALOG
THROUGH MODE
C-BPF
KILLER
Y-LPF
ADC
COLOR
Y DAC
C-BPF Trap C-LPF C DAC
1/2
CLAMP
PLL
11
SDA
12
SCL
13
TEST
14
KILLER
I
2
C BUS
20
C OUT
IC713 : PQ05RD11
Rgulator
VIN VO
CV
GND
4
3
21
I C
IC709 : TK15420MTL
Video 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
IC703 : NJM2581M
Video Amp
13
VOUT1
11
VOUT2
9
VOUT3
8
GND
10
V+3
14
V+1
12
V+2
2
NEE1
4
VEE2
6
VEE3
7
PowerSave
5
VIN3
1
VIN1
3
VIN2
75
Driver
6dB
AMP
BIAS
75
Driver
6dB
AMP
BIAS
75
Driver
6dB
AMP
BIAS
REF
IC701, 702, 704 : TC74HC4052AF
Analog Multiplexers/Demultiplexers
16
VDD
6
INHIBIT
10
A
9
B
8
VSS
7
VEE
12
X0
14
X1
15
X2
11
X3
1
Y0
5
Y1
2
Y2
4
Y3
LEVEL
CONVERTER
BINARY TO 1-OF-4
DECODER WITH INHIBIT
SW
SW
SW
SW
SW
SW
SW
SW
13
X
3
Y
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
IC708 : TC74HC4053AF (EL)
Analog Multiplexers/Demultiplexers
16
VDD
LOGIC LEVEL CONVERTER
12
OX
7
VEE
6
INH
OUT C IN
13
IX
OUT C IN
2
OY
OUT C IN
1
IY
OUT C IN
5
OZ
OUT C IN
3
IZ
OUT C IN
4
Z-COMMON
15
14
X-COMMON
Y-COMMON
9
C
10
B
11
A
8
VSS
INHIBIT
(Pin 6)
L
L
L
L
L
L
L
L
H
CONTROL INPUTS “ON” CHANNEL
0X (Pin 12), 0Y (Pin 2), 0Z (Pin 5)
1X (Pin 13), 1Y (Pin 1), 1Z (Pin 3)
0X, 0Y, 0Z
1X, 0Y, 0Z
0X, 1Y, 0Z
1X, 1Y, 0Z
0X, 0Y, 1Z
1X, 0Y, 1Z
0X, 1Y, 1Z
1X, 1Y, 1Z
NOTE
C
(Pin 9)
L
L
L
L
H
H
H
H
*
B
(Pin 10)
L
L
H
H
L
L
H
H
*
A
(Pin 11)
L
H
L
H
L
H
L
H
*
* Don’t Care
1A
1Y
2Y
V DD
6A
1
2
3
4
11
2A 6Y
5A
12
13
14
3A
3Y
5Y
4A
5
6
7
V SS 4Y8
9
10
IC706, 707 : TC74VHCU04FT
Hex Inverters
Point t (Pin 1 of IC711)
Point y (Pin 3 of IC711)
Point u (Pin 12 of IC711)