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Circuit Description - Kenwood CD-3260M Service Ma

Multiple compact disc player
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CD-3260M/3280M/DPF-J7020
QQ
3 7 63 1515 0
1. Main microprocessor : uPD784215GF541 (X32, 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
X32, IC15
uPD780204
(DOT
DRIVER)
LASER ON/OFF
ANALOG MUTE
SPINDLE MOTOR ON/OFF
MODEL DISCRIMINATION
X25, IC3
A1 SW
P1
uPD780023GC512
(SUB uCOM)
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4

CIRCUIT DESCRIPTION

CLOK
XLAT
DATA
SCLK
SENS
SYSM
SCOR
SQSO
SQCK
CLK
SO
SI
STB
5P
6P
LED_A
LED_B
CLK
SI
STB
8BIT/16BIT
A2 SW
P2
RxDO
TxDO
VR-2090 or
VR-2080
x
ao
y
CD-3280M only
i
8
X32, IC8
34
CLOCK
S1_SW
XLAT
35
S2_SW
36
DATA
S3_SW
32
SCLK
D_SENS
33
SENS
D_PWM
45
MUTEG
ROTALY_CW
44
SCOR
ROTALY_CCW
SUBQ
73
LOAD SW1
75
SQCK
UNLOAD_SW1
LOAD_P1
LOAD_M1
67
DOT/QDATA
LOAD_P2
72
SO
LOAD_M2
74
SI
LOAD_SW2
71
STB1
UNLOAD_SW2
uPD784215GF541
IC RESET
Q Q
3
6 7
1 3
ENCODE_A
ENCODE_B
14~21
46
STB2
(D7~D0)
RWRREQ 13
70
LDC
RTREN 11
48
RMUTE
RWR 12
31
MON
54
8/16
53
TYPE
84~91
(D0~D7)
(A0~A16)
RD
WR
69
TxD1
CS
68
RxD1
ASTB
SDATA
66
TxD2
SBUSY
65
RxD2
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
63
LOADM+2
62
LOADM-2
58
UNLOAD_SW2
59
DLE_SW2
PERIPHERY IC RESET
47
1 5
0 5
8
2 9
55
JOG
56
X32, IC10
D0~D7
RWRREQ
RTREN
RWR
X32, IC9
5
OE
6
WE
CS
30
CE
8
49
SERIAL
50
COMMUNICATION
m
co
9 9
CDM-31
MECHA
9 4
2 8
9 9
uPD17215GT
-737
(REMOCON
uCOM)

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Dpf-j7020Cd-3280m