A
B
C
D
E
1
2
3
4
5
6
7
RX-V420/RX-V420RDS/HTR-5440/HTR-5440RDS
RX-V420/RX-V420RDS/
HTR-5440/HTR-5440RDS
73
■
REMOTE CONTROL TRANSMITTER (U, C, A, R, T models)
●
SCHEMATIC DIAGRAM
K41
K42
K43
K44
K45
K46
K52
K53
K54
K33
K34
K35
K36
K37
K38
K25
K26
K27
K28
K29
K30
K17
K18
K19
K20
K21
K22
K9
K10
K11
K12
K13
K14
K1
K2
K3
K4
K5
K6
VBA
T
VBA
T
VBA
T
VDD
VDD
VDD
Q1
BA
TT
AAA x 4
VDD
C1
+
+
C12
C2
C3
C4
OPTION
OPTIONAL
OPTIONAL
OPTION
OPTION
OPTIONAL
OPTIONAL
FOR BW0785/6
X1
10
24
9
42
41
40
39
34
36
43
48
49
VDD0
P33
P32
P34/S131
P57/A15
P55/A13 P54/A12 P53/A11 P52/A10
P51/A9 P50/A8
P40/AD0
P41/AD1
P42/AD2
P43/AD3
P44/AD4
P45/AD5
P66/W
AIT
P65/WR
P64/RD
P30
P31
P35/SO31
P17/ANI7
P16/ANI6
P15/ANI5
P14/ANI4
P13/ANI3
P12/ANI2
P11/ANI1
P70/T100/T00
14
13
15
8
6 5 4 3 2 1
P55
P56/A14
7
P56
P54 P53 P52 P51 P50
57
58
59
60
61
62
P40
P41
P42
P43
P44
P45
P46/AD6
P47/AD7
P67/ASTB
63
64
56
P46
P47
P67
55
54
53
11
12
16
P36/SCK31
17
26
27
28
29
30
31
32
P10/ANI0
33
47
VDD1
35
A
VDD
38
XT1
37
XT2
VSS0
VSS1
X1
X2
IC (VPP)
A
VREF
25
A
VSS
RESET
P00/INTP0
51
50
P74/PCL
52
P75/B
UZ
P73/TI51/T
O51
45
46
P02/INTP2
44
P01/INTP1
P03/INTP3/ADTRG
19
20
P21/SO30
18
P20/SI30
P22/SCK30
22
23
P24/TXD0
21
P23/RXD0
P25/ASCK0
P72/T150/T050
P71/T101
C6
C7
C10
C9
C8
C5
Q3
Q2
Q6
Q5
D1
R3
R1
R4
R8
R9
R12
R13
R10
R11
R14
R2
R19
R18
R17
R20
R21
Q7
D4
D2
D3
OPTIONAL
VBA
T
VBA
T
VBA
T
VDD
3
S1
J1
J2
R15
R16
VDD
VDD
VDD
J1.1
7 AMP/TUN
6
T
APE/MD
9 CBL/SA
T
10 VCR
P56
P55
P54
P53
P52
P51
P50
P40
P41
P42
P43
P44
P45
P46
P47
P67
P[50:56]
P[40:67]
1
TV
8 CD
5 LD/D
VD
4 D
VD MENU
2 DSP/TUN
FOR BW0659/A
FOR BW0785/6
U1
U2
6
8
4
5
7
1 2 3
SCL
SD
A
NC
A0 A1 A2
24LCXX
VSS
VDD
C11
J3
R22