CD-4900M/DPF-J9030
3
CIRCUIT DESCRIPTION
X32,IC2
X32,IC8
CD MECHA
CXD2587Q
CLOCK
35 CLOK
S1 SW 7
S1 SW
CDM-31
(DSP)
XLAT
36 XLAT
S2 SW 4
S2 SW
DATA
44 DATA
S3 SW 3
S3 SW
SCLK
33 SCLK
D SENS1 23
DISC SW1
SENS
34 SENS
D SENS2 60
DISC SW2
SYSM
45 MUTG
+5V PUL 10
D PWM
SCOR
46 SCOR
R CW 24
SQCO
73 SQSI
R CCW 25
ROTARY-
SQCK
75 SCK/SQCK
LOAD SW 28
LOAD SW1
UNLOAD SW 29
UNLOAD SW1
X32,IC14
67 SCK SW
LOAD M+26
LOADM+1
uPD780204
CLK
LOAD M-27
LOADM-1
(DOT DRIVER)
SO
72 SI
TIMER PLAY
SI
74 SO
LOADM+2 63
LOADM+2
ON/OFF
STB
71 STB1
LOADM-2 62
LOADM-2
7P
LOAD SW2 58
UNLOAD SW2
4P
5P
6P
UNLOAD SW2 59
DLE SW2
uPD784217GF502
ON/
LED A
LED B
STANDBY
X32,IC15
uPD780204
CLK
RESET 43
RESET INPUT
(DOT DRIVER)
SI
IC RESET 47
PERIPHERY IC RESET
STB
46 STB2
JOG
55 JOG 2
X32,IC10
56 JOG 1
14~21
D0~D7
LASER ON/OFF
70 LDC
(D7~D0)
uPD17215GT-737
ANALOG MUTE
48 SYSM
SPINDLE MOTOR ON/OFF
31 MON
RWRREQ 13
RWRREQ
RTREN 11
RTREN
8.16BIT 54 8,16
RWR 12
RWR
MODEL DISCRIMINATION 53 A/D0
X32,IC9
84~91
(D0~D7)
A1 SW
A2 SW
1,76~83,92~99
(A0~A16)
(SRAM)
P1
P2
RD 5
OE
uPD780024
RXD0
69 TXD1
WR 6
WE
(SUB uCOM)
TXD0
68 RXD1
CS 7
CS
ASTB 8
LE
TX OUT
65 TXD2
SDATA 49
SERIAL COMMUNICATION
RECEIVER
66 RXD2
SBUSY 50
1. Main microprocessor : uPD784217GF502 (X32, IC8)
1-1 Microprocessor periphery block diagram