Kenwood DPF-J5020 Service Manual page 4

CD-323M/324M/DPF-J5020
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1-2 Microprocessor pin description (X32, IC8)
Pin No. Pin Name
1 A16
2 A17
2 NC
3 S3-SW
4 S2-SW
5 RD
6 WR
7 S1-SW
8 ASTB(CE)
9 VDD
10 +5VPUL
11 RTRN
12 RWR
13 RWRR
14-21 L-D0-D7
22 TEST
23 DISC-SW
24 ROTARY-CW
25 ROTARY-CCW
26 LOADM+1
TE
27 LOADM-1
L 13942296513
28 LOAD-SW1
29 UNLOAD-SW1
30 CS
31 MON
32 SCLK
33 SENS
34 CLOCK
35 XLAT
36 DATA
37 VDD
38, 39 X1, 2
40 VSS
41 XT2
42 XT1
43 RESET
44 SCOR
45 MUTEG
46 STB2
47 IC RESET
48 RMUTE
49 SDATA
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50 SBUSY
51 AVDD
52 AVREF
.
53 A/D0
54 8/16
55 JOG2
4
CIRCUIT DESCRIPTION
I/O
O No connection.
O No connection.
– No connection.
I Mechanism address detector switch.
I Mechanism address detector switch.
O SRAM read strobe.
O SRAM write strobe
I Mechanism address detector switch.
O No connection.
– Power supply (+5V).
O Disc sensor PWM output.
O No connection.
O No connection.
O No connection.
O No connection.
– GND.
I Disc sensor.
O Mechanism rotary motor (+).
O Mechanism rotary motor (-).
O Loading motor (+) for main pickup.
O Loading motor (-) for main pickup.
I Loading switch for main pickup.
I Unloading switch for main pickup.
O SRAM CS.
O Control port of poor focus works.
O Sens serial data read clock.
I SENS signal input.
O Serial data clock.
O CXD2587Q latch.
O Serial data output.
– Power supply (+5V).
– Main system clock (12.5MHz).
– GND.
– No connection.
I GND.
I System reset signal input.
I Sub code synchro detection.
O Muting control output.
O No connection.
O IC reset.
O Analog mute.
I/O Serial data signal I/O.
I/O Serial busy signal I/O.
x ao u163
y
– Power supply(+5V).
– A/D reference power supply.
i
I Model selector.
I 8/16 bit selector. H:16bit.
I Encoder signal A input.
2 9
8
Description
Q Q
3 6 7 1 3 1 5
co
.
9 4 2 8
H : CCW
H : CW
0 5 8 2 9 9 4 2 8
H : MUTE ON.
L : MUTE ON.
m
9 9
9 9