Display And Key Board Circuit Diagram - Onkyo DR-645(S)/(B) Service Manual

Display and Key Board -- Circuit Diagram
Display Board Circuit Diagram
73
S35
SG35
S36 74
SG36
75
SG37
76
SG38
77
SG39
78
SG40
S41 79
SG41
S42 80
SG42
S43 81
SG43
S44 82
SG44
S45 83
SG45
S46 84
SG46
S47 85
SG47
S48 86
SG48
S49 87
SG49
S50 88 IC2
SG50
S51 89
SG51
S52 90
SG52
PT6314
S53 91
SG53
S54 92
SG54
S55 93
SG55
S56 94
SG56
S57 95
SG57
S58 96
SG58
S59 97
SG59
S60 98
SG60
S61 99
SG61
S62 100
SG62
S63 101
SG63
S64 102
SG64
S65 103
SG65
S66 104
SG66
105
S67
SG67
106
S68
SG68
107
S69
SG69
108
S70
SG70
VFD1
STO-16T202
C2
R1 0
104
36
VDD2
R2 0
35
VSS2
34
VSS1
R3 0
33
TESTOUT
32
SLK
R4 0
31
SDO
30
LATCH
29
C3
/CLR
28
RL2
27 104
RL1
26
/CS
25
MPU
24
IFSET
23
DB7
22
DB6
21
DB5
20
DB4
19
DB3
18
DB2
17
DB1
16
DB0
15
SI/SO
14
E/SCK
13
RS/STB
12
R/W
11
DS0
10
DS1
9
DLS
8 R5 0
TEST
7
/RESET
6
OSC1
5
OSC2
4
R6 56K
CLK R7
3
VDD1
2 0
VSS2
1
VDD2
C6
104
C5
104
7-2
R15
47
C1 47u
S601
3
C2
Vcc
2 104
GND
1
REM
R14 10
REMOTE
17P/2.5
R12
CN1
8.2K
GND 1
1
VDD 2 Q1
2
NC 3
8050
3
RS R8 1K 4
4
R13
R/W(WR) 5 ECO_PO
5
E(RD) R9 1K 6
10K
6
DB0 R10 7
1K
7
DB1 R11 1K 8
8
DB2 R13 1K 9
9
DB3 R14 1K 10
10
DB4 R15 1K 11
11
ER1
DB5 R16 1K 12
12
DB6 R17 1K 13 1
13 G
DB7 R18 1K 14 ROT-B1 2
B
14
+32V 15 ROT-A1 3
A
15
VF2 16
16
VF1 17
17 ED1612-24
Key Board Circuit Diagram
CN2
+5VS
2.0/14P
REM1
R8
R9
R11
1K 1
1
4.7u
4.7u
C4
C3
LED601 C5 C6
4.7u
4.7u
CN1
17P/2.5
7-2
R7 5.6k
SW7
R6 2.2k
SW6
R5 560
SW5
R4 100
SW4
R3 2.2K
SW3
R2 560
SW2
R1 100
SW1
TC103