Yamaha RX-V1200 Service Manual page 76

A B
RX-V1200/RX-V1200RDS/HTR-5490/DSP-AX1200/RX-V2200/DSP-AX2200
SCHEMATIC DIAGRAM (RX-V2200/DSP-AX2200 VIDEO)
1
IC581: LC72722
RDS Decoder
1 5 6
VDDA 3
+
REFERENCE
VOLTAGE
VSSA
4
VREF
57kHz
ANTIALIASING SMOOTHING
MPX IN 2 bpf
FILTER FILTER
(SCF)
DO 20
CL 21
RAM ERROR CORRECTION
DI 22 CCB (24 BLOCK DATA) (SOFT DECISION)
CE 23
CLK(4.332MHz)
T1 7 MEMORY
T2 CONTROL
8 TEST
T3 9
OSC/DIVIDER
T4 10
2
11 16 17 13
E-93/J-87 E-93/J-87
B3 C3
3
4
5
0
4.7
0
0
0 0 4.7
0 4.6
-4.8
0 0
0
0
0 0
0 4.7
0
6 0
0 4.7
0
-4.8
4.6
0
0
0
0
0
0 0
0
0
0
0
0
0
0
0 0
0
4.7
0
0
0 0 4.7
0 -4.8 4.6
7 0 0 0
0
0
0
4.7 4.7
0.9
0
0.2 -0.6
0 0.7
0
8
K KOREA
9
E-97/J-91
C D E
CLOCK 14 VDDD
PLL
RECOVERY
(57kHz)
(1187.5Hz)
15 VSSD
DATA
RDS-ID
19
DECODER
18 SYNC
SYNC/EC
CONTROLLER 24 SYR
SYNC SYNC
DETECT-1 DETECT-2
12
11.9
4.8
5.5
5.5
0
4.7
0
0
0 2.1 0.9
0 0
0 4.7
4.7
2.4 2.4
0.9
0 4.3
-4.8 4.3
4.6
0
0.9 0.9
0 0 0
1.5 1.5
0.8
-4.8 0
0 0
0 0
0
0 0
4.7 0 4.7
4.7
0 0
0 0
4.0
0
0 0 4.7 0.9
0 4.0
-4.8 3.9 -4.8 0
0 0 1.6
0
0 -4.8
0
-4.8 -4.8 -1.6
-4.8 -4.8
-0.5
0
0 4.7
0 0
0
0
0 0
0 R688
0 4.7
4.7
-4.8 0
0 0
0 -4.8
(see page E-98/J-92)
6
ON
SCREEN
4.6
1.6
0.9
0.9
0.9
1.5
# All voltages are measured with a 10MΩ /V DC electric 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.
F G
0 4.9
0 0
0 0
0
0
0 0
0 4.6
-4.9 4.6
0 0
0 4.9
0 0
0 0
0 0
0 0
0 4.6
-4.9 0
0
0
4.9
0 4.6
-4.9 0
0 0
0
0
0
0
0 0
0
4.9
1.0
0.3 0
0
+5.5V
IC608: TC74HCU04AFEL
Hex Inverters
1A 1 14 VCC
1Y 2 13 6A
2A 3 12 6Y
2Y 4 11 5A
3A 5 10 5Y
3Y 6 9 4A
GND 7 8 4Y
to OPE (4) E-94/J-88
G5
2.4
2.4 2.4
4.7 4.3
4.3
0 4.7 0
0
1.7 2.1
0 0.8
-0.6
0.2
-0.5
-0.6
0
IC601: TK15420M
Video Amp
Production of the parts marked with "x" has been discontinued starting with
November production of 2001.
OUT A 1 8 VCC
–IN A 2 7 OUT B
+ – + –
+IN A 3 6 –IN B
VEE 4 5 +IN B
H I
IC602, 603: TC74HC4051AP
Analog Multiplexer/Demultiplexer
0 0 0 0 0
0
0 0 0
IC701: LA7108M
Video Amp
0
0 VIN1+ 1 16 +VCC
NFB1 2 6dB DR 15 VOUT1
4.9
MUTE1 3 14 GND
0 0
VIN2+ VOUT2
4 13
IC610: LC74781-9798
6dB DR
0 -4.9
On Screen Display Controller
NFB2 5 12 MUTE2
-4.9
-VCC1 6 VOUT3
11 CS
SIN 11
VIN3+ 7 6dB DR 10 MUTE3
SCLK 10
NFB3 8 9 -VCC2
RST 23
IC611: BU2092
Serial In/Parallel Out Driver
Vss VDD VDD1
1 18 24
DATA 2 17 OE
4.9
CLOCK 3 Control 16 Q11
Circuit VSS1
LCK 4 15 Q10
4.6 0
0
-4.9 Q0 5 14 Q9
0 0
Q1 6 13 Q8 VDD2 12
Q2 Q7 CHARA
Y SELECTOR 7 12
Q3 Q6
4.9 8 11
0
0 0
0 Q4 9 10 Q5
0
0
OSCIN
0
OSCOUT
0
-4.9
SYNIN 17
0
0
0 0
SEPC 18
0
0
SEPOUT 19
-4.9
SEPIN 20
IC604, 605: MM74HC4051N
CTRL3
22
Cb SELECTOR IC703: MM74HC4051SJX
8-Channel Analog Multiplexer
Cr SELECTOR IN/OUT
0 4.9 VCC Y7 Y6 Y5 Y4 Y3 Y2 Y1
0 0
0 16 4 2 5 1 12 15 14
0
0
A 11
10
B
Logic Binary to 1
Level of 2 Decoders
Conversion with INHBIT
9
C
INH 6
8 7
GND VSS
IC609: LA7109
75Ω Video Driver
VIN1+
1
NFB1 2
6dB DR
MUTE1 3
VIN2+ 4
6dB DR
NFB2
5
-VCC1 6
VIN3+ 7 6dB DR
NFB3 8
N.C. 9
N.C. 10
VIN4+ 11 11
NFB4 12 6dB DR
MUTE2 13
VIN5+ 14
6dB DR
NFB5
15
-VCC2 16
VIN6+ 17 6dB DR
NFB6 18
IC606: MM74HC4053N
IC704, 751: MM74HC4053SJX
Triple 2-Channel Analog Multiplexer
IN/OUT
VCC CY CX BY BX
16 3 5 1 2
Logic Binary to 1
A 11 Level
of 2 Decoders
Conversion
with INHBIT
Logic
B 10 Level
Conversion Binary to 1
of 2 Decoders
with INHBIT
Logic
4
C Level
Conversion
Binary to 1
Logic
9 of 2 Decoders
INH Level
Conversion with INHBIT
8 7
GND VSS
J K
IC607: TC74HC4053AP
Analog Multiplexer/Demultiplexer
INHIBIT VDD
6 16
A INPUT STATES
11
"ON" CHANNNEL (S)
LEVEL BINARY TO 1-OF-8
INHIBIT C B A
B 10
CONVERTER DECODER WITH INHIBIT
0 0 0 0 0X, 0Y, 0Z
C 9
0 0 0 1 1X, 0Y, 0Z
VSS 8
0 0 1 0 0X, 1Y, 0Z
VEE 7
0 0 1 1 1X, 1Y, 0Z
0X 12 SW
0 1 0 0 0X, 0Y, 1Z
14 X-COM
1X 13 SW
0 1 0 1 1X, 0Y, 1Z
0Y SW
2 0 1 1 0 0X, 1Y, 1Z
Y-COM
15
0 1 1 1 1X, 1Y, 1Z
1Y 1 SW
1 X X X NONE
0Z 5 SW
4 Z-COM
1Z SW
3
IC702: TC74HC4051AFEL
Analog Multiplexer/Demultiplexer
INHIBIT VCC
6 16
A 11
LEVEL BINARY TO 1-OF-8
B 10
CONVERTER DECODER WITH INHIBIT
INPUT STATES
C 9
"ON" CHANNNEL
INHIBIT C B A
GND 8
0 0 0 0 0
VEE 7
0 0 0 1 1
0 13 SW 3 COM
0 0 1 0 2
1 SW
14 0 0 1 1 3
2
15 SW 0 1 0 0 4
3 12 SW 0 1 0 1 5
0 1 1 0 6
4 1 SW
0 1 1 1 7
5 SW
5
1 X X X NONE
6 2 SW
7 4 SW
9
8-bits
Serial
latch
+
parallel
command
converter
decoder Horizontal Vertical Horizontal Vertical Blinking RAM
Display
character character display display and inversion write
control
size size position position control adress
register
counter
register register register register register
Blinking
Horizontal Vertical Horizontal Vertical
and inversion Display
size size dot dot
control RAM
counter counter counter counter
circuit
Blinking Blinking
and inversion and inversion
1
control control
register register
Character Line
8 Decoder
control control
counter counter
Horizontal
character
Font
size
Horizontal RAM
6 register
character
size
7
register
Character output control
Synchronization Shift
Timing generator Background control
signal generator register
Video output control
Horizontal Horizontal
character character
size size
register
register
4 21 2 3 5 15 13
CTRL1 CTRL2 XtalIN XtalOUT BLANK CVIN CVOUT
Y0
13
TG
TG
TG
TG COMMON
3
OUT/IN
TG
TG
TG
TG
+VCC1
36
VOUT1
35
34 GND
33 VOUT2
DR CTL2
32
VOUT3
31
30 MUTE4
29 -VCC4
N.C.
28
N.C.
27
26 +VCC2
26
25 VOUT4
s43 C653 470P x x x
24 GND
23 VOUT5
DR CTL1
22
21 VOUT6
20 MUTE3
19 -VCC3
AY AX
13 12
OUT/IN
AX or AY
TO
YG
OUT/IN
BX or BY
TG
TB
OUT/IN
CX or CY
TC
TG
x: NOT USED
O: USED / APPLICABLE
L