Remote Control Transmitter - Yamaha CDC-775 Service Manual

A
CDC-775
1

REMOTE CONTROL TRANSMITTER

SCHEMATIC DIAGRAM
2
IED1
C1
R1
2.2Ω
47µF
Q1
3
+3V
4
5
6
7
44
B
1
KI/O6 KI/O5
2
KI/O7 KI/O4
3
S0 KI/O3
4
S1/LED KI/O2
R2
220Ω
5
REM KI/O1
6
VDD KI/O0
7
X OUT KI3
3.64MHz
8
X IN KI2
X1
9
VSS KI1
10
RESET KI0
C
K1 K9
K2 K10
K3 K11
20
K4 K12
19
18
K5 K13
17
K6 K14
16
15
K7 K15
14
13
K8 K16
12
11
Key
FUNCTION
No.
1 OPEN/CLOSE
2
REPEAT
3 RANDOM
4 TAPE
5 CLEAR
6 PROG
7
1
8 2
9 3
10 4
11 5
12
6
13 7
14
8
15 9
16 0
17 +10
18 FILE EDIT
20
FILE MODE
21 INDEX
22 DISC SCAN
23 SKIP/SEARCH <<
24 SKIP/SEARCH >>
25
OUTPUT LEVEL –
26 CAPS
27 DISC SKIP/CHARACTER <
29 DISC SKIP/CHARACTER >
30 ENTER
31
DISC MODE
32 TEXT MODE
34
TEXT SRCH
35 OUTPUT LEVEL +
37 STOP
38 PAUSE
39 PLAY
41
SYNCHRO
42 PEAK
43 DIMMER
44 TIME
D
K17 K25 K41
K18 K26 K34 K42
K27 K35 K43
K20 K44
K21 K29 K37
K22 K30 K38
K23 K31 K39
K24 K32
D1
D2
CUSTOM DATA
(HEX) (HEX)
79 01
79 08
79 1B
79 57
79 0D
79 0C
79 11
79 12
79 13
79 14
79 15
79 16
79 17
79 18
79 19
79 10
79 1A
79 67
79 1F
79 0B
79 53
79 04
79 07
79 1C
79 2D
79 50
79 4F
79 3F
79 00
79 2B
79 2C
79 1D
79 56
79 55
79 02
79 58
79 5D
79 1E
79 0A
E