CD-425M/4260M/4700M/DPF-J6030
3
CIRCUIT DESCRIPTION
IC2
IC6
CD MECHA
CXD2587Q
CLOCK
35 CLOK
S1_SW 56
S1_SW
(DSP)
XLAT
36 XLAT
S2_SW 28
S2_SW
DATA
44 DATA
S3_SW 27
S3_SW
SCLK
33 SCLK
D1_SW 58
DISC_SW1
SENS
34 SENS
D2_SW 57
DISC_SW2
SYSM
45 MUTG
SCOR
46 SCOR
R_CW 24
SQCO
73 SQSI
R_CCW 25
ROTARY-
SQCK
75 SCK/SQCK
LOAD_SW 55
LOAD_SW
UNLOAD_SW 54
UNLOAD_SW
IC13
67 SCK_SW
LOAD_P 31
LOADM+
uPD780232GC
CLK
LOAD_M 30
LOADM-
(DOT DRIVER)
SO
72 SI
SI
74 SO
STB
71 STB
RESET 43
RESET INPUT
REG_ON 29
PERIPHERY IC ON
TIMER_SW
IC RESET 63
PERIPHERY IC RESET
uPD784217GF501
TIMER PLAY
ON/OFF
SERIAL COMMUNICATION
49 SBUSY
50 SDATA
REMOCOM INPUT
48 REM
POWER KEY
47 POWER
JOG
60 JOG_2
59 JOG_1
DISC SENSOR ON/OFF
23 PWM
LASER ON/OFF
32 LDC
SPINDLE MOTOR ON/OFF
26 MON
DOOR OPEN/CLOSE
70 DOOR_SW
PROTECTION
53 PROTECT
IC10
ANALOG MUTE
10 RMUTE
84~91
(AD0~AD7)
CY62128L-70SC
(SRAM)
76~83,92~98
(A0~A14)
RD 5
OE
WR 6
WE
CS 7
CS
1. Main Microprocessor : uPD784217GF501
Microprocessor periphery block diagram
PORT
A/D 0(IC13,22pin)
A/D 1(IC13,21pin)
VOLTAGE
RESISTER
2.9V
5.1K
RANDOM
REPEAT
2.0V
3K
DISPLAY
CONFIRM
1.2V
2K
STOP
DOWN
0.4V
SHORT
PLAY
UP
2. Key matrix