RX-V340/RX-V340RDS/HTR-5630/HTR-5630RDS/DSP-AX340
A
1
2
3
4
5
6
7
8
9
BCDEFGH I JKL
60
SCHEMATIC DIAGRAM (MAIN 2/2)
★ All voltages are measured with a 10MΩ/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.
Point
2
Pin 12 of IC471 Point
3
Pin 13 of IC472 Point
4
Emitter of Q472 and collector of Q475
POWER ON
(Connect the power cable)
POWER OFF
(Disconnect the power cable)
A
B
IC281: LA7956
Video Switch
123456789
VIDEO
OUT
A B VIN1 GND VIN2 VCC VIN3 VIN4
DRIVER
6dB
AMP
CONTROL
4 INPUT 1 OUTPUT
VIDEO SWITCH
IC471: 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
3.9
3.9
3.9
0
3.9
4.9
4.9
6.2
12.0
6.3
6.3 6.3
6.9
7.3
0
0
12.0
5.6
4.9
4.9
-11.8
4.9
4.9
-11.8
4.9
4.9
-11.8
4.9
5.6
5.6
0
0
0
0
4.9
4.9
14.0
14.0
13.4
6.9
7.4
0
0
0
0
0
4.9
4.9
4.9
4.9
4.9
0.4
4.9
4.9
0
0
0
0
0.9
4.9
4.9
4.9
4.9
4.9
0
0
0.3
0
0.8
4.9
4.9
4.9
4.9
0
0
0
0.8
4.9
0.8
1.2
0.5
1.2
0
0.5
0
0.5
0
0
4
6.2
4.95.6
5.6
4.9
6.2
0
5.6
4.9
4.9
4.9
1.2
1.2
1.2
0
0
0
0
0
0
0
12.1
12.1
2.2
2.2
0.1
0.1
0.1
0.1
4.9
2.2
2.2
1.9
1.8
00
4.4
0
0
0
0
14.1
0.8
0.1
0
0
0
4.9
0
0
0
0
0
0
0
0
12.0
-11.9
-11.8
-29.8
5.8
5.2
0
4.9
4.9
4.9
4.9
4.9
0
0
0
0
0
0
0
0
0
0
0
4.9
4.9
5.0
5.0
5.1
4.9
4.9
4.9
4.9
4.9
4.9
4.9
4.9
0.5
2.4
0
2.3
5.0
5.0
0
0
0
0.1
0
0.9
5.0
2
A
B
3
POWER DETECTOR
/RESET
SPEAKER RELAY DRIVE
MICRO COMPUTER
LEVEL SHIFT
INPUT
SELECTOR
x: NOT USED
O: USED / APPLICABLE
Page 57
to FUNCTION (1)
F1Page 59 A6
Page 58
to FUNCTION (4)
G6Page 56
to DSP
E1
Page 58
to FUNCTION (2)
C8
w
w
w
.
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1
6
3
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Q
Q
3
7
6
3
1
5
1
5
0
9
9
2
8
9
4
2
9
8
T
E
L
1
3
9
4
2
2
9
6
5
1
3
9
9
2
8
9
4
2
9
8
0
5
1
5
1
3
6
7
3
Q
Q
TEL 13942296513 QQ 376315150 892498299
TEL 13942296513 QQ 376315150 892498299
http://www.xiaoyu163.com
http://www.xiaoyu163.com
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