RX-V530/RX-V530RDS/HTR-5550/HTR-5550RDS/DSP-AX530
RX-V430/RX-V430RDS/HTR-5540/HTR-5540RDS/DSP-AX430
A
1
2
3
4
5
6
7
8
9
BCDEFGH I JKL
68
SCHEMATIC DIAGRAM (FUNCTION 2/2)
★ 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.
x: NOT USED
O: USED / APPLICABLE
IC551: LA7956
Video Switch
123456789
VIDEO
OUT
A B VIN1 GND VIN2 VCC VIN3 VIN4
DRIVER
6dB
AMP
CONTROL
4 INPUT 1 OUTPUT
VIDEO SWITCH
IC571: LC72722
RDS Decoder
+
REFERENCE
VOLTAGE
57kHz
bpf
(SCF)
CCB
TEST
PLL
(57kHz)
ANTIALIASING
FILTER
SMOOTHING
FILTER
RAM
(24 BLOCK DATA)
ERROR CORRECTION
(SOFT DECISION)
SYNC/EC
CONTROLLER
SYNC
DETECT-1
D ATA
DECODER
CLOCK
RECOVERY
(1187.5Hz)
MEMORY
CONTROL
OSC/DIVIDER
VREF
CLK(4.332MHz)
SYNC
DETECT-2
VDDA
VSSD
VDDD
RDS-ID
SYNC
SYR
VSSA
MPX IN
DO
CL
DI
CE
T1
T2
T3
T4
T5
T6
T7
X IN
VREF
FL OUT
C IN
X OUT
3
14
15
19
18
24
1 5 6
4
2
20
21
22
23
7
8
9
10
11 16 17 13 12
VOLTAGE
SELECTOR
POWER RELAY
: RX-V530/RX-V530RDS/HTR-5550/HTR-5550RDS/DSP-AX530 only
Point 3 Pin 15 of IC571
Page 67 C6 Page 67 C7 Page 67 C8
Page 71 J2Page 71 D1
Page 74
I5
Page 74
K3
3
0
-0.1
-0.1
0
21.2
-21.8
12.1
-13.2
AC 32.9
AC 20.1
AC
13.4
13.3
6.4
6.4
0
13.3
6.4
6.4
0
0.1
0
13.3
0.1
0.8
1.81.9
2.2
2.2
2.2
12.0
5.6
4.9
5.6
0
2.3
12.0
2.9
4.4
0
2.2
0
0
4.9
4.8
0
0
0
4.9
0
12.0
5.7
6.4 6.4
7.0
0
0.3
3.9
3.9
12.0
3.9
0
3.9
4.9
4.9
6.4
0
6.4
AM/FM TUNER
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