Yamaha RX-V1700, Service Manual

Page: 113 / 162

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-V1700/DSP-AX1700
113
★
All voltages are measured with a 10M
Ω
/V DC electronic voltmeter.
★
Components having special characteristics are marked s and must be replaced
with parts having specifications equal to those originally installed.
★
Schematic diagram is subject to change without notice.
A-VIDEO 1/2
8.9
8.9
8.9
0
0
0
0.1
0.1
0.1
0
0
8.9
8.9
0
5.1 5.0
0 0 0
0 0 4.7
0.4
0.4
0
0
0
0 9.0
0
4.9
0
6.3
0
0
5.0
5.0
0
2.1
4.3
4.4
4.4
4.3
4.3 5.0 0
2.5
5.1 2.6 -0.2 2.7 2.7 0 4.9 4.9
2.6 2.6 2.5
0
-4.9
0
2.7 5.0
5.0
2.1
0
2.5
0
2.5
0
0
2.5
5.0
2.5
0
2.5
0
5.0
5.0
5.0
0
2.9
0
2.7
0
0
0
0
0
2.9
0
2.6
0
4.4
4.4
4.3
4.3
4.4
4.4
4.3
0
0 -4.9
3.6
3.6 3.1
4.9 3.6
0
-4.9
0
-4.9
0
5.1
0
5.1
0
5.1
3.7
3.7
3.7
3.7
3.6
0
D-1
A-VIDEO
INPUT & LINE
0dB
SELECTOR
LINE
SELECTOR
Frequency
Counter
To A-VIDEO 2/2
To A-VIDEO 2/2
IC206 : MM74HC4053SJX
Triple 2-channel analog multiplexer
16
11
10
9
7
VEE
8
GND
C
B
A
VCC
5
CX CY
1
BY
3 2
BX
IN/OUT
13
AY
12
AX
6 INH
Logic
Level
Conversion
Binary to
1 of 2
Decoders
with
INHIBIT
Logic
Level
Conversion
Logic
Level
Conversion
Logic
Level
Conversion
Binary to
1 of 2
Decoders
with
INHIBIT
Binary to
1 of 2
Decoders
with
INHIBIT
TG
TG
TG
TG
TG
TG
OUT/IN
BX or BY
15
OUT/IN
CX or CY
4
OUT/IN
AX or AY
14
6dB
6dB
6dB
6dB
6dB
6dB
I 2C BUS
Y/R IN1
Y/R IN2
Y/R IN3
Y/R IN4
Pb/G IN1
Pb/G IN2
Pb/G IN3
Pb/G IN4
Pr/B IN1
Pr/B IN2
Pr/B IN3
Pr/B IN4
Y/R OUT1
Y/R OUT2
Pb/G OUT1
Pb/G OUT2
Pr/B OUT1
Pr/B OUT2
ADDRESS
SDA
SCL
V+
GND
AUX 0
AUX 1
AUX 2
AUX 3
PORT 0
PORT 1
PORT 2
PORT 3
VREF
BIAS
DGND
V
+
GND
V+
Pb IN2
Pr IN2 Y IN1
Pb IN1
Pr IN1
POR
T
3
V+
ADR
POR
T
2
GND
SCL
SDA
DGND
VREF
V+
Pr OUT2
PORT1
PORT0
Pb OUT2
1 14
38 25
39
24
48 15 Y IN2
GND
Pr IN3
V+
Pb IN3
GND
Y IN3
V+
Pr IN4
GND
GND
A
UX0
A
UX1
Y OUT2 A
UX2
A
UX3
Pr OUT1 GND Pb OUT1 GND Y OUT1 V+ Y IN4 V+ Pb IN4
GND
IC201 : NJW1321FP1
Wide band video switch with I 2 C bus
IC204, 205 : 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
IC203 : NJM2581M
Video amplifier
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
30 29 28 26 25 24 23 22 21 20 19 17
DAC3
SW
INV
SW
INV
SW
SYNC
SEPA
DAC1
SW
SYNC
SEPA
INV
SW
INV
SW
I
2
CBUS
Decoder
DV2-OUT
SW
DV1-OUT
SW
HD2-OUT
SW
HD1-OUT
SW
V-Input
SW
H/V-
FREQ
Counter
V-FREQ
DET SW
DAC2
SW
H-FREQ
DET SW
V
Integral
H-INPUT
SW
V C/D
V-FREQ
SW
Clamp
Pulse
HD
Polarity
H-AFC
HVCO
CP
SW
H-FREQ
SW
2 υ fH
H-Ramp H C/D
TEST DAC3 DAC1
V-SYNC
DAC2
H/C-
SYNC
DAC3 VD2-OUT VD1-OUT SYNC1-IN DAC1 SYNC2-IN Address SW SCL SDA HD2-OUT Digital GND HD1-OUT
HD2-IN VD2-IN HD1-IN VD1-IN Analog GND AFC Filter HVCO V CC DAC2 VD3-IN HD3-IN CP-OUT
27
NC
18
NC
1 2 3 5 6 7 8 9 10 11 12 14 4 13
16
NC
15
NC NC NC
IC202 : TA1318AF
SYNC processor, frequency counter IC for TV component signals
IC207: LA73054-TLM-E
Analog dual operational amplifier
POINT D-1 Pin 9 of IC202
to D-VIDEO_CB132
J model
Page 116 A2
to D-VIDEO_CB131
Page 116 A2
J model