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A
B
RX-V540/RX-V540RDS/HTR-5650/HTR-5650RDS/DSP-AX540
RX-V440/RX-V440RDS/HTR-5640/HTR-5640RDS/DSP-AX440
SCHEMATIC DIAGRAM (FUNCTION 2/2)
1
2
3
Page 84
D1
G5
I1
to VIDEO
to FUNCTION (7)
to FUNCTION (5)
4
5.6
0.6
13.4
2.9
2.3
0.6
0
5
4
A
13.4
4.9
5.6
5.6
0.6
4.9
6
0
13.3
13.4
4
B
12.6
4.6
0
0
6.8
7.3
0
6.8
0
0
0
0
7
8
Page 83
E8
to OPERATION (1)
# 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.
9
80
C
D
E
RX-V540/RX-V540RDS/HTR-5650/HTR-5650RDS/DSP-AX540
INPUT
SELECTOR
11.5
6.4
6.4
6.4
5.8
7.0
7.4
0
11.5
7.1
6.4
E1
to FUNCTION (6)
Page 79
F2
to FUNCTION (1)
4.9
0
-11.9
4.9
0
11.7
-11.9
3
4.9
0
-11.9
0
0
0
4.7
0.1
4.9
4.8
4.9
4.8
0
4.9
4.8
4.9
0
4.9
0
4.9
4.9
0
0
1.2
4.7
0.9
4.9
0.6
1.6
0
0
4.9
4.9
4.8
4.9
0
0
1.8
2
0
4.9
0
0
4.9
4.9
0
0
Page 77
E1
to DSP
F
G
C3
to FUNCTION (4)
Page 85
H1
to MAIN (3)
0.1
5.0
1.6
B3
to FUNCTION (4)
0.7
5.0
-4.9
Y SELECTOR
0
C840
0
10/63
0
4.8
PS
GND
-4.9
VEE3
VOUT3
0
C841
0
VIN3
V+3
0
-4.9
10/63
VEE2
VOUT2
0
0
VIN2
V+2
-4.9
VEE1
VOUT1
0
VIN1
V+1
Cb SELECTOR
0
C842
0
10/63
0
Cr SELECTOR
Point 2 Pin 13 of IC601
Point 3 Pin 12 of IC603
H
I
B3
to FUNCTION (4)
C-INPUT
SELECTOR
5.0
4.5
2200P
5.0
0
0
0
0
0
0.3
0
0.3
0
0
4.9
4.9
Y-INPUT
1.5
1.5
SELECTOR
S-SIGNAL DETECTOR
11.5
6.6
6.6
6.1
5.0
4.9
4.9
0.1
6.0
4.9
6.0
0.1
7.1
0.1
0
11.5
0.1
4.5
0.1
0
2.7
0.6
0
5.4
5.4
6.0
6.6
6.0
7.0
0
0.1
0
Y/C MIX
5.0
5.0
0.1
0.1
4.9
5.0
4.9
0.1
0.1
0.1
2.2
0.1
0.1
0.1
0.8
0
5.0
4.9
4.5
0.1
-0.5
0.1
0.1
1.5
0.6
0.8
0
0
0.4
0.1
0.8
0.7
-4.9
0.7
0
0
0.4
0.1 0.1
0.1
-4.9
0.2
0
5.0
0.2
4.9
-4.9
4.9
0
4.9
0
0
5.0
0
5.0
0
5.0
x: NOT USED
O: USED / APPLICABLE
Note: IC821 LA7104M
for P.W.B. A to D version.
NJM2581M for P.W.B. E or later version.
Point 4 Emitter of Q601 and collector of Q602
A
B
POWER ON
POWER OFF
(Connect the power cord)
(Disconnect the power cord)
J
K
IC602: NJM78L05A-T3
Voltage Regulator
INPUT
OUTPUT
4.5
4.5
0
GND
-4.9
IC603: LC72722
RDS Decoder
1
5
6
VDDA
3
+
CLOCK
14
VDDD
PLL
RECOVERY
REFERENCE
(57kHz)
(1187.5Hz)
VOLTAGE
VSSA
4
15
VSSD
VREF
57kHz
ANTIALIASING
SMOOTHING
DATA
MPX IN
2
bpf
19
RDS-ID
DECODER
FILTER
FILTER
(SCF)
DO
20
CL
21
18
SYNC
RAM
ERROR CORRECTION
SYNC/EC
DI
22
CCB
(24 BLOCK DATA)
(SOFT DECISION)
CONTROLLER
24
SYR
CE
23
CLK(4.332MHz)
T1
7
MEMORY
T2
CONTROL
8
TEST
SYNC
SYNC
T3
9
DETECT-1
DETECT-2
OSC/DIVIDER
T4
10
4.5
11 16 17
13
12
4.9
IC701, 702, 801: LA7956
4.9
4.2
Video Switch
6dB
AMP
0.8
4 INPUT 1 OUTPUT
DRIVER
CONTROL
VIDEO SWITCH
1
2
3
4
5
6
7
8
9
VIDEO
A
B
VIN1
GND
VIN2
VCC
VIN3
VIN4
OUT
IC731, 734, 822: TC74HC4053AF
Analog Multiplexer/Demultiplexer
INHIBIT
VDD
6
16
A
11
LEVEL
BINARY TO 1-OF-8
B
10
CONVERTER
DECODER WITH INHIBIT
C
9
VSS
8
VEE
7
0X
12
SW
X-COM
14
1X
13
SW
0Y
2
SW
Y-COM
15
1Y
1
SW
0Z
5
SW
Z-COM
4
1Z
3
SW
INPUT STATES
"ON" CHANNNEL (S)
INHIBIT
C
B
A
0
0
0
0
0X, 0Y, 0Z
0
0
0
1
1X, 0Y, 0Z
0
0
1
0
0X, 1Y, 0Z
0
0
1
1
1X, 1Y, 0Z
0
1
0
0
0X, 0Y, 1Z
0
1
0
1
1X, 0Y, 1Z
0
1
1
0
0X, 1Y, 1Z
0
1
1
1
1X, 1Y, 1Z
1
X
X
X
NONE
IC732, 735: TK15420M
IC733: TC74HCU04AFEL
Video Amp
Hex Inverters
1A
1
14
VCC
OUT A
1
8
VCC
1Y
2
13
6A
–IN A
2
7
OUT B
+
–
+
–
2A
3
12
6Y
+IN A
3
6
–IN B
4
VEE
4
5
+IN B
2Y
11
5A
3A
5
10
5Y
3Y
6
9
4A
GND
7
8
4Y
IC821: LA7104M
Video Amp
VIN1+
1
16
+VCC
2
NFB1
6dB
DR
15
VOUT1
MUTE1
3
14
GND
VIN2+
VOUT2
4
13
6dB
DR
NFB2
5
12
DR CTL
-VCC1
6
11
VOUT3
7
VIN3+
6dB
DR
10
MUTE2
NFB3
8
9
-VCC2
L
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