Text preview for : RXV350_SchDiagram_main.pdf part of YAMAHA RX-V350 SELF DIAGNOSIS AND SHEMATIC DIAGRAM
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RX-V350/HTR-5730
SCHEMATIC DIAGRAM (MAIN 1/2)
1
L CH POWER AMP
49.2
-47.9
MUTE
SURROUND L
0 -12.1
-49.1
49.2 0
0.6 0 0
0
0 0
0
0 0
0
49.1 0
47.2
2
0
DETECT
48.9 0 0
0 -12.1
0 0
FRONT L
0
SURROUND L
3
DETECT
48.9 48.9 47.2 47.8 47.2 47.8 0 0
4
29.1 0 0 5.0 0 0 0 0 0
FRONT L
0 0 4.8
DETECT
0
R CH POWER AMP
-47.9 -49.1 49.2 0 0.6 0 0 0 0 0 0 0 0 0
0
0
0
0
47.2
MUTE
5
0 -12.1 0
0
0
0
DETECT
48.9 0 0
Page 54 K5 to FUNCTION (10)
MAIN (4)
x: NOT USED O: USED / APPLICABLE 0 -12.1 0 0 11.8
Page 53 L7 to FUNCTION (1)
0
6
RELAY DRIVE -12.0
-12.0
11.7
11.6
DETECT
48.9 0 -48.7 -47.9 -48.5 -49.0 -48.7 0
-12.0 -12.0 SPEAKER RELAY RELAY DRIVE 11.8 11.8
0
11.9
Page 56 D3 to MAIN (1) µ-COM Section
7
CENTER
-0.3
-49.0
11.6 11.6 0 -12.0
-12.0 -12.0
POWER SUPPLY
-12.0 13.0
-49.0 -0.3 0 0
MUTE
0 0.7
-47.9 12.0
0
AC 13.3
0.1
CENTER POWER AMP
-49.1 49.2 0 0.1 0.1 0 1.1 0
0
0.4
SPEAKER RELAY RELAY DRIVE
11.8 11.8 0 0
0.1 0.7
0
0
8
11.6
11.7 11.7
DETECT
48.9 0 0 -12.0
POWER RELAY
MAIN (2)
SPEAKER RELAY
0 46.6 1.1 0
CENTER
-44.0
-28.4 -28.9 -28.9
TR7
9
46.0 47.2 46.6
IC101: STK404-130Y Power Amp.
IC102, 103: STK403-130Y Power Amp. 3 8
0
R4
TR6 TR8
0 -49.1 49.2 0
Pre Driver CH1 11 12
Pre Driver CH2 15 14
R5 C2
AC 72.5
PT1
Input Amp.
IN NF
Driver Amp.
C3
Bias Circuit
SUB 1 2 3 4 5 6 7 8 9 10 11 12 13
1 2 10
SUB
10
MAIN (1) Power Section
# All voltages are measured with a 10M/V DC electronic 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
5 4 6 7
13
55
A
RX-V350/HTR-5730
B
C
D
E
F
G
H
I
J
K
L
M
N
SCHEMATIC DIAGRAM (MAIN 2/2)
1
Point 2 Pin 12 of IC241 Point 3 Pin 13 of IC242 Point 4 emitter of Q258 and collector of Q259
MAIN (3)
A Q258 E
INPUT SELECTOR
12.0 3.9 3.9 3.9 3.9 4.8 4.8 6.2 0
2
B Q259 C
POWER ON (Connect the power cable)
POWER OFF (Disconnect the power cable)
Page 55 A7 to MAIN (1) Power Section
Page 53 G1 to FUNCTION (1)
12.1 6.3 6.3 5.5 6.9 7.2 0 6.3
3
0
4
MUTE CONTROL
4.8 -12.0 4.9
4.8 -12.0
4.9 4.9 1.7
4.9
0
0 0
0
4.9
12.0
2
12.0
2.2 2.2 4.4 0 2.2
5.6
RDS DECODER
-12.0
4.9
4.8 -12.1 4.9
5.7 5.1 5.6
1.9
5
0
0
0
4.8 -12.1 0 12.1 4.9
0.1 -12.3 0 0 0 0 11.7 0 0 0 4.8 0 4.8 1.1 0 0 0 0 0 0 11.7 0
0.7
0
4.8
4.8
6
LEVEL SHIFT
13.4
5.6 5.6 6.2 4.9
4.9 4.8 4.2
4.8
1.1
4.8 0
0
4.9
4.9 4.9
4.9
5.1 0
4.9
4.8
0
0
4.9
13.4 6.2
5.6
5.6
5.0 0 4.9 4.9 0 4.9 4.8 0 4.8 1.1 0
4.9
0 0
0
0
0
0
0
4.9
4.9 4.9 4.9 4.9
7
0
4
13.4
MICRO COMPUTER
0 0.9 4.9 0 0
A
13.4 13.3
B
4.8 0
0 1.1 4.8 0.4 4.8 0.4 0 0.8 4.8 4.9
Page 52 G1 to DSP
4.8
Page 54 H7 to FUNCTION (4)
FREQUENCY STEP
IC241: LC72722PM RDS Signal Processor
FL OUT
5
VREF
6.8
7.4 0 0
1
C IN
6 PLL (57 kHz) VREF CLOCK RECOVERY (1187.5 Hz) 14 VDDD
VDDA 3
0 0
8
0
0
REFERENCE VOLTAGE
VSSA 4 MPX IN 2 DO CL DI CE T1 T2 T3 T4
20 21 22 23 7 8 9 10 ANTIALIASING FILTER 57 kHz bpf (SCF)
15 VSSD DATA DECODER 19 RDS-ID
POWER DETECTOR & RESET
3
0 0
0.8 4.8 0.4 0.4 0
4.9 0.4 0.4 4.9 4.7 4.9 0.3 0.1 4.9 4.7 4.9 4.8 2.4 2.3 4.9 4.9 0 5.0 4.9 0 0 0 0 0
SMOOTHING FILTER
CCB
RAM (24 BLOCK DATA) MEMORY CONTROL
ERROR CORRECTION (SOFT DECISION) CLK (4.332 MHz)
SYNC / EC CONTROLLER
18 SYNC 24 SYR
x: NOT USED O: USED / APPLICABLE
TEST
OSC/DIVIDER
SYNC DETECT-1
SYNC DETECT-2
11 16 17
13
12
IC391: LA7956 Video Switch
6dB AMP
DRIVER
CONTROL
4 INPUT 1 OUTPUT VIDEO SWITCH
10
X OUT
X IN
9
T5 T6 T7
MAIN (1) µ-COM Section
Page 52 L7 to DSP
1
VIDEO OUT
2
A
3
B
4
VIN1
5
GND
6
VIN2
7
VCC
8
VIN3
9
VIN4
# All voltages are measured with a 10M/V DC electronic 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.
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