Kenwood DPF-J5020 Service Manual page 5

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Pin No. Pin Name
56
57 DOOR-SW
58 LOAD-SW2
59 UNLOAD-SW2
60 DISC-SW2
61
62 LOADM-2
63 LOADM+2
64
65
66
67 SQCK/SCK-SW
68 RXD SUB
69
70
71
72
73
74
75 SCK/SQCK
TE
L 13942296513 76-83
84-91
92-98
99
100
1-3 Key matrix
VOLTAGE
4.166V
3.333V
2.5V
1.666V
0.833V
0V
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CIRCUIT DESCRIPTION
I/O
JOG1 I Encoder signal B input.
I Door open/close detector switch.
I GND.
I GND.
I Disc2 sensor.
AVSS – GND.
O No connection.
O No connection.
AVREF1 – D/A reference power supply.
RXD-R I No connection.
TXD-R O No connection.
O "SQCK,SCK(DOT/DSP clock).
I No connection.
TXD SUB O No connection.
LDC O Laser on/off.
STB1 O Strobe signal output to dot driver.
S0 I Data input from dot driver.
SQS1 I Sub code read data input.
S1 O Data output to dot driver.
O Dot driver/sub code read clock.
A14~7 O Address output to SRAM.
D0~7 I/O SRAM data buss.
A0~6 O Address output to SRAM.
A15 O No connection.
VSS – GND.
KEY RETURN 0 (33)
323M CHECK/SPACE
323M CLEAR/DELETE
323M FB
323M FF
DOWN
UP
x ao
y
i
CD-323M/324M/DPF-J5020
8
Q Q
3 6 7 1 3
KEY RETURN 1 (32)
323M MODE
323M SET
323M ENTER
REPEAT
323M P.MODE/CHARA
POWER
u163
.
2 9 9 4 2 8
Description
L: "DSP."
L: Laser diode ON.
1 5 0 5 8 2 9 9 4
( ) : IC14 Pin No.
KEY RETURN 2 (31)
323M
324M/J5020
RANDOM
CONFIRM
323M
PLAY/PAUSE
STOP
m
co
9 9
2 8 9 9
BEST SEL.
DISPLAY
DISP/INS
5