Circuit Description - Kenwood DPF-J5020 Service Manual

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1. Main microprocessor : uPD784215GF541 (IC8)
1-1 Microprocessor periphery block diagram
IC2
CXD2587Q
(DSP)
X32, IC14
uPD780204
(DOT
DRIVER)
POWER ON
PLAY ON/OFF
7P
4P
ON/STANDBY
TE
L 13942296513
SPINDLE MOTOR ON/OFF
MODEL DISCRIMINATION
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CIRCUIT DESCRIPTION

CLOK
XLAT
DATA
SCLK
SENS
SYSM
SCOR
SQSO
SQCK
CLK
SO
SI
STB
LASER ON/OFF
ANALOG MUTE
8BIT/16BIT
x ao
y
i
CD-323M/324M/DPF-J5020
8
X32, IC8
34 CLOCK
S1_SW
35 XLAT
S2_SW
36
DATA
S3_SW
32 SCLK
D_SENS
33 SENS
D_PWM
45 MUTEG ROTALY_CW
SCOR
44 ROTALY_CCW
73 SUBQ LOAD SW1
75 SQCK UNLOAD_SW1
LOAD_P1
LOAD_M1
67 DOT/QDATA
72 SO
74 SI
71 STB1
uPD784215GF541
IC RESET
ENCODE_A
ENCODE_B
Q Q
3 6 7 1 3
70 LDC
48
RMUTE
31 MON
54 8/16
53 A/D0
(AD0~AD7)
76~83, 92~99
(A0~A17)
ASTB
SDATA
SBUSY
u163
.
2 9 9 4 2 8
S1_SW
7
4 S2_SW
S3_SW
3
DISC SW
23
D_PWM
10
ROTARY+
24
ROTARY-
25
LOAD SW1
28
29 UNLOAD_SW1
26 LOADM+1
27
LOADM-1
PERIPHERY IC RESET
47
55
JOG
56
1 5 0 5 8 2 9 9 4
X32, IC9
84~91
HM62256BLFP-8T
1~2
RD 5
OE
WR 6 WE
CS
CS 30
CE
8
49 SERIAL
50 COMMUNICATION
m
co
9 9
CDM-31
MECHA
2 8 9 9
3