Yamaha DSP-AX1600, Руководство по обслуживанию

Страница: 108 / 151

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-V1600/DSP-AX1600
SCHEMATIC DIAGRAM (A-VIDEO 1/2)
108
★
All voltages are measured with a 10M
Ω
/V DC electronic volt meter.
★ 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.
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 IN
1
Pb IN1 Pr
IN1
PORT3
V+
ADR
PORT2
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
AU
X0
AU
X1
Y OUT2 AU
X2
AU
X3
Pr
OUT1
GND Pb OUT1 GND Y OUT1 V+ Y IN
4
V+ Pb IN4
GND
IC601 : NJW1321FP1
Wide Band Video Switch with I
2
C BUS
IC602 : 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 Ω
Driver
6dB
AMP
BIAS
75 Ω
Driver
6dB
AMP
BIAS
75 Ω
Driver
6dB
AMP
BIAS
REF
IC603, 604 : MM74HC4052SJX
Dual 4-Channel Analog Multiplexer
16
10
9
9
7
VEE
8
GND
C
B
A
VCC
1
Y0
4
Y3 Y2 Y1
11
X3
5 2
15
X2
X CHANNELS IN/OUT
14
X1
12
X0
COMMON X
OUT/IN
Y CHANNELS IN/OUT
Logic
Level
Conversion
Binary
to
1 of 4
Decoder
with
INHIBIT
TG
TG
TG
TG
TG
TG
TG
TG
13
COMMON Y
OUT/IN
3
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
IC605 : TA1318AF
SYNC Processor, Frequency Counter IC for TV Component Signals
IC606: LA73054-TLM-E
Analog Amp
IC607 : 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
NC
4.3 3.6
3.6
3.6
3.6
4.5
4.6
4.5
4.3
4.6
4.6
4.6
3.6
3.6
4.3
4.6
4.6
4.6
0.6
0
0.6
0
0.6
0
0 0 0
0 0 0
0 0 0
0 0 0
0.6
0.6
0
0
0
3.0
-5.0
0.1
5.1
4.3
-5.0
0.1
-5.0
0.1
0
5.0
5.0
5.0
5.0
5.1
0.1
0.1
0.1
0.6
0.6
0
0
0
0.6
0.6
0
0
0
0
0
0
0
0
5.0
0.1
0
-5.0
0
0.1
5.0
0.1
0
-5.0
0
0.1
8.9
8.9 8.9
8.9
0
0
3.4 3.4
0 0
8.9
0.6 0.6
5.0
0 0
0
0.1
0
0.6
0.1
0.1
0.1
8.9
8.9
8.9
0
0
0
0
4.9 0
4.9
4.9
4.9
0
2.3
0
1.5
0
0
2.6
2.6
2.6
4.9
4.9
0
0
2.4
0
2.8
0
2.4
0
0
0
4.8
2.9
0
2.9
0
3.1
0
4.9
4.9
0
0
0
3.4
8.9
8.9
3.5
3.4
3.5
0
8.9
8.9
0
0
0
0
4.9
6.3
0
B-1
Page 101
to FUNCTION (1)_CB312
H2
Page 109
to A-VIDEO (2)_CB703
G9
Page 106
to INPUT (5)_CB316
L2
A-VIDEO (1)
J model
INPUT & LINE
0dB
SELECTOR
LINE SELECTOR
FREQUENCY
COUNTER
47/16
47/16
47/16
47/16
47/16
47/16
47/16
47/16
47/16
47/16
47/16
47/16
POINT B-1 Pin 9 of IC605