Circuit Description - Kenwood CD-3260M Service Manual

CD-3260M/3280M/DPF-J7020
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
X32, IC15
uPD780204
(DOT
DRIVER)
LASER ON/OFF
ANALOG MUTE
SPINDLE MOTOR ON/OFF
MODEL DISCRIMINATION
X25, IC3
A1 SW
P1
uPD780023GC512
(SUB uCOM)
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
CD-3280M only
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
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
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
55
JOG
56
X32, IC10
D0~D7
RWRREQ
RTREN
RWR
X32, IC9
5 OE
6 WE
CS
30
CE
8
49
SERIAL
50 COMMUNICATION
CDM-31
MECHA
uPD17215GT
-737
(REMOCON
uCOM)