A
1
2
3
4
5
6
7
8
9
10
BCDEFGH I JK
L MN
RX-V2400/RX-V2400RDS/DSP-AX2400/RX-V1400/RX-V1400RDS/HTR-5690/DSP-AX1400
SCHEMATIC DIAGRAM (FUNCTION 1/2)
89
★ All voltages are measured with a 10MΩ/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.
IC502, 509: LC78212
Analog Function Switch
1
2
3
4
5
6
7
8
30
29
28
27
26
25
24
23
L1
L2
L3
LCOM1
L4
L5
L6
LCOM2
R1
R2
R3
RCOM1
R4
RCOM2
R5
R6
9
10
11
22
21
20
19
16
12
18
17
14
15
13
LEVEL SHIFTER
LATCH
CONTROL
SHIFT REGISTER
ZZ
ZZ
ZZ
L7
L8
RES
S
V
DD
V
SS
V
EE
LCOM3
RCOM3
R7
R8
D1
CL
CE
IC503: LC78211
Analog Function Switch
1
2
3
4
5
6
7
8
9
10
11
30
29
28
27
26
25
24
23
22
21
20
19
16
12
18
17
14
15
13
LEVEL SHIFTER
LATCH
CONTROL
SHIFT REGISTER
ZZ
ZZ
ZZ
L1
L2
L3
L4
LCOM1
L5
L6
L7
L8
RES
S
V
DD
V
SS
V
EE
LCOM2
LCOM3
R1
R2
R3
R4
RCOM1
RCOM2
RCOM3
R5
R7
R8
D1
CL
CE
R6
IC504, IC510: LC78213
Analog Function Switch
1
2
3
4
5
6
7
8
9
10
11
30
29
28
27
26
25
24
23
22
21
20
19
16
12
18
17
14
15
13
LEVEL SHIFTER
LATCH
CONTROL
SHIFT REGISTER
ZZ
ZZ
ZZ
L1
L2
LCOM1
L3
L4
LCOM2
L5
LCOM3
L7
RES
S
V
DD
V
SS
V
EE
L6
LCOM4
R1
R2
RCOM1
R3
R4
R6
RCOM4
RCOM2
RCOM3
R7
D1
CL
CE
R5
I
2
C Bus Interface
Output
Data Latch
8
Output Data
Reset
Input Data
I/O Port
Shift Register
3
SDA
1
SO
16
CS0
15
CS1
14
CS2
12
D7
11
D6
10
D5
9
D4
7
D3
6
D2
5
D1
4
D0
2
SCL
8
GND
13
VDD
IC505: M62320FP
I/O Expander
8
I/O Setting
Register
8
Input/Output
8
I/O Setting
Register
8
8
Power On
Reset
IC508: SN74AHCT126PW
Quadruple Bus Buffer Gates with 3-state Outputs
1A
1Y
2Y
VCC
6A
1
2
3
4
11
2A 6Y
5A
12
13
14
3A
3Y
5Y
4A
5
6
7
4Y8
9
10
GND
IC522: AN78N05
Voltage Regulator
+
–
1 2 3
Output Pass Transistor
Rsc
Excessive Electric
Current Protection
Power Supply
Standard
Voltage
Amp.
Heat
Protection
Starter
Circuit
CPU
EPROM
EXTEND
PORT
2400 only
RX-V1400/RX-V1400RDS/HTR-5690/DSP-AX1400
: Page 95
to VIDEO (2)
C2
RX-V2400/RX-V2400RDS/DSP-AX2400
: Page 94 C2
RX-V1400/RX-V1400RDS/HTR-5690/DSP-AX1400
: Page 95
to VIDEO (2)
C3 Page 87
to DSP
G1
RX-V2400/RX-V2400RDS/DSP-AX2400
: Page 94 C3
Page 92
to MAIN (1)
E7 Page 91
to OPERATION (1)
H1 Page 91
to OPERATION (2)
B7
Point 3 emitter of Q511
and collector of Q512
POWER ON
(Connect the power cord)
POWER OFF
(Disconnect the power cord)
A Q511 E
B Q512 C
Point 2 Pin 20 of IC520
5.2
0
0.1
5.6
0
0
0
3.0
1.5
2.9
3.0
2.6
2.4
4.9
4.7
4.9
4.9
0.1
0.1
4.9
2.7
2.8
2.6
2.1
2.8
2.8
3.9
1.9
2.9
2.3
1.8
2.2
4.9
0
0
0
4.9
0.1
4.9
0.1
4.9
0.1
4.9
4.7
5.2
4.9
0
0
0
0
4.9
2.3
0
2.2
4.9
4.9
5.1
0
5.2
0
4.9
0
0.1
4.9
0
0.1
0.1
5.5
2.6
2.1
2.7
2.5
1.6
2.7
3.0
3.9
2.6
2.8
2.8
2.1
2.6
2.8
0
2.7
4.9
0.1
1.8
4.9
0.1
0.1
4.7
4.9
2.1
2.9
2.5
1.0
1.5
3.0
1.8
0
4.9
4.9
0.1
1.6
10.9
0
0
4.9
3.0
4.9
0.1
4.9
5.7
0
4.9
4.9
4.9
0
4.9
5.0
0.1
0
4.9
4.9
4.9
4.8
4.9
0
4.8
4.9
4.3
5.5
0
4.9
4.9
3.1
2.5
2.4
2.8
5.1
5.1
5.1
5.1
0.1
0.1
0.1
0
4.9
4.9
5.1
0
0.3
5.2
5.2
0.8
0.5
0
0
1.2
5.2
4.9
1.2
8.7
5.8 5.8
5.8 4.9
5.8 5.2
5.2
0.1
0.1
0
4.9
0
0.8
0
5.8
0.8
0
0.4
0.2
0.2
0
0.4
0
5.1
5.1
1.8
4.9
0
3.0
2.9
2.7
2.3
1.6
1.8
2.5
2.2
4.9
2.7
3.1
2.1
2.5
2.6
2.4
1.9
2.8
3.0
0
1.6
3.9
0
0
-11.8
0.1
0.1
0.1
11.4
11.4
0
11.4
-11.8
0.1
0.1
0.1
11.4
11.4
0
11.4
-11.8
0.1
0.1
0.1
11.4
11.4
0
11.4
-11.8
0.1
0.1
0.1
11.4
0
0
11.4
-11.8
0.1
0.1
0.1
11.4
0
0
11.4
0
5.6
5.6
5.2
5.4
0.1
0.1
0.1
0.1
5.5
0
0
5.6
5.6
5.4
5.2
11.5
10.9
10.9
0
10.9
10.9
-11.9
0
10.9
0
10.9
10.9
-11.8
0
10.9
0
10.9
10.9
-11.8
0
10.9
0
10.9
10.9
-11.8
0.8
0.1
0
0.1
6.7
5.2
0.8
7.0
0
0.1
7.6
7.8
2
3
A
B
Remarks
IC506 X 1400BD3841FS
X3547A0
BD3841FS
X3547A0
XX
R577, 908 10k
RD35710
240010k
RD35710
10k
RD35710
10k
RD35710
10k
RD35710
C561, 562
564, 566
R581, 582
R578, 580
585~588
X 140010/16
UR23710
10/16
UR23710
XX
C626, 627 X 1400
2400
2400
2400
2400
2400
2400
2400
2400
2400
10/16
UR23710
10/16
UR23710
XX
J503, 504 X 1400
2400
2400
2400
2400
2400
OOXX
Q501 O 2400OOO
R515 O 2400OOO
R501, 502, 512 O 2400OOO
R514 O 2400OOO
C511 O 2400OOO
IC508 O 2400OOO
R933~938 O 2400OOO
O
O
O
O
OX XOO
O
O
WB72590 1400WB72600 WB72630WB72610 WB72620
J501, 502 X X 1400XXX
O
X 1400100K
RD35810
100K
RD35810
XX
Q506 X C4488 (S/T)
VP87270
C4488 (S/T)
VP87270
XX
C562, 566 X 2400
2400
10/16
UR23710
10/16
UR23710
XX
C560, 565
C568, 603, 604
47/50
UR26747
240047/50
UR26747
47/50
UR26747
47/50
UR26747
47/50
UR26747
R587, 588 X 2400100K
RD35810
100K
RD35810
XX
C560, 565 X 140047/50
UR26747
47/50
UR26747
XX
IC506 BD3841FS
X3547A0
2400BD3841FS
X3547A0
BD3841FS
X3547A0
BD3841FS
X3547A0
BD3841FS
X3547A0
R577, 908 X 140047/50
UR26747
47/50
UR26747
XX
x: NOT USED
O: USED / APPLICABLE