Kenwood CD-223M Service Manual page 7

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Pin No. Pin Name
49 SDATA
50 SBUSY
51 AVDD
52 AVREF
53
54
55 JOG2
56 JOG1
57 DOOR-SW
58 LOAD-SW2
59 UNLOAD-SW2
60 DISC-SW2
61
62 LOADM-2
63 LOADM+2
64 AVREF1
%
65 RXD2
66
67 SQCK/SCK-SW
%
68 RXD1
69
TE
L 13942296513
70
71
72
73 SQS1
74
75 SCK/SQCK
76-83* A14-7
76-83 A16,14,12,7-3
84-91
92-99* A1-6,15
92-99 A0,1,8-11,13,15
100
* CD-223M/224M/DPF-J3010/J5010
% I/O port : O (when no used this port)
1-3 Key matrix
VOLTAGE
223M/J3010
4.166V
3.333V 223M/J3010
www
2.5V 223M/J3010
1.666V 223M/J3010
.
0.833V
0V
CIRCUIT DESCRIPTION
I/O
I/O Serial data signal I/O.
I/O Serial busy signal I/O.
– Power supply(+5V).
– A/D reference power supply.
A/D0 I Model selector.
8/16 I 8/16 bit selector. H:16bit.
I Encoder signal A input.
I Encoder signal B input.
I Door open/close detector switch.
I Load switch2 for sub pickup(DPF-J9010 only).
I Unload switch2 for sub pickup(DPF-J9010 only).
I Disc2 sensor(DPF-J7010/J9010 only).
VSS – GND.
O Load motor(-) for sub pickup(DPF-J9010 only).
O Load motor(+) for sub pickup(DPF-J9010 only).
– D/A reference power supply.
I UART communication input(DPF-J7010/J9010 only)
TXD2 O UART communication output(DPF-J7010/J9010 only)
O "SQCK,SCK(DOT/DSP clock) selector. L:DSP."
I UART communication input(sub u-com)(DPF-J9010 only).
TXD1 O UART communication output(sub u-com)(DPF-J9010 only).
LDC O Laser on/off.
STB1 O Strobe signal output to dot driver.
S0 I Data input from dot driver.
I Sub code read data input.
S1 O Data output to dot driver.
O Dot driver/sub code read clock.
O Address output to SRAM.
O Address output to SRAM.
D0-7 I/O SRAM data buss.
O Address output to SRAM.
O Address output to SRAM.
VSS – GND.
KEY PETURN 0 (33)
CHECK/SPACE
CLEAR/DELETE
FB
x ao
y
FF
i
DOWN
UP
CD-223M/224M/DPF-J3010/J5010
8
Q Q
3 6 7 1 3
KEY RETURN 1 (32)
223M/J3010 MODE
223M/J3010 SET
223M/J3010 ENTER
u163
REPEAT
.
223M/J3010 P.MODE/CHARA
2280M/J9010 DISPLAY
POWER
2 9 9 4 2 8
Description
1 5 0 5 8 2 9 9 4
( ) : IC14 Pin No.
KEY RETURN 2 (31)
223M/J3010 BEST SEL.
224M/2260M/J5010/J7010
DISPLAY
2280M/J9010 OPERATION
RANDOM
m
CONFIRM
co
223M/J3010 DISP/INS
2280M/J9010 CONT. PLAY
PLAY/PAUSE
STOP
9 9
2 8 9 9
7