Yamaha HTR-5550-RDS Schematic
ABCDEF GH I JKL
SCHEMATIC DIAGRAM (FUNCTION 1/2)
1
2
3
4
MAIN L
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
000
0
000000000
SOUND
PROCESSOR
00000000000
0
000
★ 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.
Page 70 F1 Page 69
6.7 12.0
7.4
7.4
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
-7.4
-7.4
-6.7
12.1
L
5.6
0
0
-5.6
12.0
8
5
0
6
0
7
0
2
0
1
0
3
0
4
-12.0
0
0
0
0
0
0
0
0
0
0
4.9
4.9
5.6
0
0
-5.6
12.0
8
5
0
7
6
0
0
A6
to OPERATION (1)
IC302: BD3811K1
Sound Processor
77, 78
TUNER L/R
1, 2
CD L/R
CD-R L/R
79, 80
V-AUX L/R
9, 10
7, 8
VCR L/R
AUDIO INPUT
5, 6
D-TV L/R
3, 4
DVD L/R
L
22
24
R
14
RL
RR
13
6 CH INPUT
15
C
16
W
LR19
17
TO DSP
A4
A4
RX-V430/HTR-5540/DSP-AX430: Page 73
RX-V530/RX-V530RDS/HTR-5550/HTR-5550RDS/
DSP-AX530/HTR-5540RDS/RX-V430RDS: Page 72
CENTER
OUT1
G8
Page 69
IC303, 304: µPC4570G2
Dual OP-Amp
–IN1
+IN1 –IN2
–VCC
REAR L
2
1
0
3
-0.1
0
4
-12.0
RX-V530/RX-V530RDS/HTR-5550/HTR-5550RDS/DSP-AX530
RX-V430/RX-V430RDS/HTR-5540/HTR-5540RDS/DSP-AX430
73, 74 VCR L/RCD-R L/R 71, 72
47k
47k
47k
47k
47k
47k
47k
47k
47k
47k
47k
47k
47k
-1
1
2
–+
3
4
CH2
INPUT ATT
0, -6, -12, -18dB
47k
47kR47kRL47kRR47kC47k
21 24 26 25 27 28 46 47 48
L
FROM DSP
IC305: MM74HC4053SJX
Triple 2-Channel Analog Multiplexer
Logic
Level
A
11
Conversion
Logic
Level
B
10
Conversion
Logic
Level
C
4
Conversion
Logic
Level
9
INH
Conversion
8
GND
IC306: NJM78L05A-T3
Voltage Regulator
+VCC
8
OUT2
7
–+
6
5
+IN2
MASTER
VOLUME
0 - 100dB
+
1dB step
–
+
–
+
–
+
–
+
–
+
–
SW
VCC
16
3CY5CX1BY2
Binary to 1
of 2 Decoders
with INHBIT
Binary to 1
of 2 Decoders
with INHBIT
Binary to 1
of 2 Decoders
with INHBIT
7
VSS
+
–
+
–
+
–
+
–
+
–
+
–
OUTPUT
GAIN
0.5 - 18dB
2dB step
IN/OUT
BASS
TREBLE
BASS
±14dB
±14dB
BOOST
2dB step
2dB step
0, 4, 8, 12dB
L OUT
55
R OUT
57
RL OUT
37
RR OUT
38
C OUT
36
SW OUT
35
DIGITAL
CONTROL
Hi Level >2.2V
µ-COM
Low Level <1.0V
BX
AX
13AY12
TO
OUT/IN
AX or AY
YG
TG
OUT/IN
BX or BY
TB
TC
OUT/IN
CX or CY
TG
INPUT
OUTPUT
5
4.9
4.9
-11.9
GND
F8
Page 69
6
7
B1
Page 68
MUTE
0
8
0
0.7
0.7
0
0
Page 68 C1 Page 68 B1
1.9
0
0
4.9
4.9
4.9
4.9
0
1.2
4.9
4.9
4.9
0.9
1.9
0.6
0
4.7
4.9
4.7
4.9
0
0
0
000
5.004.9
0.1
0.4
4.9
000
4.9
0
0
4.9
4.804.9
MAIN CPU
1
4.8
0
4.7
2.402.1
4.9
9
0
0
0
4.9
4.9
4.9
4.7
0
0
4.9
0.1
4.8
4.804.8
4.804.9
4.9
4.9
4.9
4.9
4.9
0
0
0
0
0
0.1
0
4.9
4.9
0
0
0
0.2
0
0.1
4.9
4.7
0.1
4.7
RESET
A
0
0
2
0
0
5.6
4.9
5.6
4.9
: RX-V530/RX-V530RDS/HTR-5550/HTR-5550RDS/DSP-AX530 only
13.3
5.6
0.7
0.7
0
13.3
13.3
B
12.6
6.87.3
6.8
0
000
0
Point 1 Pin 13 of IC301
x: NOT USED
O:USED / APPLICABLE
Point 6 emitter of Q309
and collector of Q308
A Q309 E
B Q308 C
POWER ON
(Connect the power cord)
POWER OFF
(Disconnect the power cord)
67
A
RX-V530/RX-V530RDS/HTR-5550/HTR-5550RDS/DSP-AX530
RX-V430/RX-V430RDS/HTR-5540/HTR-5540RDS/DSP-AX430
SCHEMATIC DIAGRAM (FUNCTION 2/2)
1
Page 67 C6 Page 67 C7 Page 67 C8
BCDEF GH I JKL
2
Page 71 J2Page 71 D1
3
4
5
I5
Page 74
6
0.1
0.8
0
POWER RELAY
12.0
4.9
5.6
5.6
0
2.2
2.2
4.4
0
13.3
0.1
12.0
2.9
2.3
0
0
0
0
4.8
4.9
2.2
2.2
0
4.9
0
3
1.81.9
: RX-V530/RX-V530RDS/HTR-5550/HTR-5550RDS/DSP-AX530 only
AM/FM TUNER
13.3
13.3
6.4
6.4
6.4
6.4
0
AC
13.4
0
4.9
3.9
3.9
3.903.9
12.0
12.0
6.4
6.4 6.4
5.7
7.0
Point 3 Pin 15 of IC571
4.9
6.4
0.3
0
0
IC551: LA7956
Video Switch
6dB
AMP
CONTROL
VREF
1 5 6
57kHz
SMOOTHING
bpf
FILTER
(SCF)
RAM
(24 BLOCK DATA)
MEMORY
CONTROL
4 INPUT 1 OUTPUT
VIDEO SWITCH
FL OUT
C IN
+
VREF
ERROR CORRECTION
(SOFT DECISION)
CLK(4.332MHz)
OSC/DIVIDER
X IN
CLOCK
14
CONTROLLER
SYNC
RECOVERY
(1187.5Hz)
DECODER
SYNC/EC
VDDD
15
VSSD
DATA
19
RDS-ID
18
SYNC
24
SYR
SYNC
DETECT-2
PLL
(57kHz)
DETECT-1
X OUT
DRIVER
123456789
VIDEO
A B VIN1 GND VIN2 VCC VIN3 VIN4
OUT
IC571: LC72722
RDS Decoder
VDDA
3
REFERENCE
VOLTAGE
VSSA
4
ANTIALIASING
MPX IN
2
FILTER
DO
20
CL
21
CCB
DI
22
CE
23
T1
7
T2
8
TEST
T3
9
T4
10
11 16 17 13 12
T5T6T7
7
K3
Page 74
8
68
9
21.2
0
0
-21.8
12.1
-0.1
-13.2
AC 32.9
AC 20.1
-0.1
VOLTAGE
SELECTOR
x: NOT USED
O:USED / APPLICABLE
★ 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.
ABCDEF GH I JKL
SCHEMATIC DIAGRAM (OPERATION)
1
RX-V530/RX-V530RDS/HTR-5550/HTR-5550RDS/DSP-AX530
RX-V430/RX-V430RDS/HTR-5540/HTR-5540RDS/DSP-AX430
★ 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.
2
IC701: LC75712E FLD
FL Display Driver
64
Ｃ
DI
Ｏ
Ｎ
Ｔ
63
SHIFT REGISTER
CL
Ｒ
Ｏ
Ｌ
62
CE
3
4
60
VDD
57
VSS
55
VFL
61
RES
56
TEST
59
OSCI
OSC
58
OSCO
ADDRESS
REGISTER
BLINKCYCLE
REGISTER
DISPLAY
REGISTER
DUTYCYCLE
REGISTER
GRID
REGISTER
INSTRUCTION
DECODER
DIVIDER
ADDRESS
COUNTER
GENERATOR
GENERATOR
CONTROL
CONTROL
GENERATOR
5
DC
RAM
BLINK
DISPLAY
CONTROL
DUTY
GRID
TIMING
CG
ROM
Ｌ
Ａ
Ｔ
Ｌ
Ｃ
Ａ
Ｈ
Ｔ
CG
Ｃ
RAM
Ｈ
AD
RAM
Ｄ
Ｅ
Ｃ
Ｏ
Ｄ
Ｅ
Ｒ
L
F1
6
Page 67
to FUNCTION (1)
Ａ
Ｎ
Ｏ
Ｄ
Ｅ
Ｄ
Ｒ
Ｉ
Ｖ
Ｅ
Ｒ
Ｇ
Ｒ
Ｉ
Ｄ
Ｄ
Ｒ
Ｉ
Ｖ
Ｅ
Ｒ
1
AM1
2
AM2
35
AM35
36
AA1
37
AA2
38
AA3
39
AA4/G16
40
AA5/G15
41
AA6/G14
42
AA7/G13
43
AA8/G12
44
G11
45
G10
53
G2
54
G1
0
0
0
0
IC741, 742: µPC4570G2
Dual OP-Amp
1
OUT1
2
–IN1
–+
3
+IN1 –IN2
4
–VCC
11.9
5
8
7
0
6
2
1
0
3
4
-12.0
+VCC
8
OUT2
7
–+
6
5
+IN2
-20.4
-20.4
4.9
~
~
~
~~~~~~~
4.9
~
~
~
~
~
~
~
~
~
~
~
~
~
~
~
~
4.9
4.9
~~~~~~~~~
0
~
~
IR REMOTE
x: NOT USED
O:USED / APPLICABLE
~~~~~
FL DRIVER
~~~~~
-28.1
0
4.9
FL DISPLAY
~
~
~
~
0
0
2.5
4.9
~~~~~~~~~~~~~~~
~
4.9
~~~~~~~
~
~
~
~
~
~
~
-27.4
~
-27.4
~
~
~
~
~
~
0.1
4.904.9
4.9
2.5
~
~
~
~~~~~~~~~
4.9
~
~
~
4.9
4.9
~
~
~
~
~
~
-27.4~-29.4
4.9
~
~
4.9
~
~
~~~
~
-27.8
4.9
~
AC
-20.4
-20.4
5.8
-20.4
-28.1
7
8
9
11.9
3
0
8
1
0
2
0
6
0
5
0
7
0
4
-12.0
to FUNCTION (1)
Page 67
I5
to FUNCTION (1)
Page 67
I5
69
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