Sharp CD-BA250 Service Manual page 46

CD-BA250/CD-BA2600
IC701 RH-iX0399AWZZ: System Microcomputer (IX0399AW) (1/2)
Pin No. Port Name
1 VDD VDD
2 P37 -20d BATT
3 P36 NO USE
4 P35 T_BIAS
5 P34 T_T1/T2
6 P33 REC/PLAY
7 P32 RES OUT
8 P31 DRF
9 P30 WRQ
10 RESET RESET
11 X2 X2
12 X1 X1
13 VPP/IC VPP/IC
14* XT2 XT2
15 P04 SPN
16 VDD VDD
17 P27 CD CLK
18 P26 CD DI
19 P25 CD DO
20 P24 CD CE
21 P23 CE
22 P22 CLK
23 P21 DI
24 P20 DO
25 AVSS AVSS
O/C SW
26 ANI7
DISC NO SW
27 ANI6 TUNER SM
DSA ACK
28 ANI5 SPEANA2
29 ANI4 SPEANA1
30 ANI3 SPEANA0
31-33 ANI2-ANI0 KEY 2-KEY 0
34 AVDD AVDD
35 AVREF AVREF
36 INTP3 P-IN
37 P02 JOG 1
38 P01 JOG 0
39 INTP0 REMOCON
40 VSS VSS
41 P74 SMUTE
42 P73 T_SOL B
43 P72 T_SOL A
44 P71 T_MOTOR
45 P70 TIMER LED
46 VDD VDD
47* P127 AC RLY_CONT
48 P126 SP RLY
49 P125 SP DET
50 P124 T1 RUN
51 P123 T2 RUN
52 P122 CD CLAMP SW
In this unit, the terminal with asterisk mark (*) is (open) terminal which is not connected to the outside.
Terminal Name Input/Output
Input
Output
Output
Output
Output
Output
Output
Input
Input
Input
Output
Input
—
—
Input
—
Output
Output
Input
Output
Output
Output
Output
Input
—
Input
Input
Input
Input/Output
Input
Input
Input
Input
Input
Input
Input
Input
Input
Input
—
Output
Output
Output
Output
Output
—
Output
Output
Input
Input
Input
Input
(+) POWER SUPPLY
-20dB ATTENUATOR
GND
TAPE RECORD BIAS
TAPE T1/T2 CHANGE
TAPE REC/PLAY CHANGE
CD DSP RESET&MPEG MICROCOMPUTER RESET
CD RF LEVEL DETECTION
CD DSP WRITE REQUEST
RESET
MAIN CLOCK
MAIN CLOCK
GND
OPEN
TUNER SPAN CHANGE
(+) POWER SUPPLY
CD DSP CLOCK
CD DSP COMMAND
CD DSP CODE Q OUT/
CD DSP CE OUTPUT
CE OUTPUT
CLOCK OUTPUT
DATA OUTPUT
DATA INPUT
ANALOG GROUND
CD OPEN/CLOSE SWITCH
CD DISC NUMBER SWITCH
TUNER SIGNAL METER INPUT
DSA ACR
SPEANA DATA INPUT 16 kHz
SPEANA DATA INPUT 1 kHz
SPEANA DATA INPUT 63 kHz
KEY INPUT
ANALOG VDD
ANALOG REF VOLTAGE
POWER FAILURE DETECT
JOG VOLUME INPUT 1
JOG VOLUME INPUT 0
REMOCON INPUT
GROUND VOLTAGE
SYSTEM MUTE CONTROL
TAPE 2 SOLENOID CONTROL
TAPE 1 SOLENOID CONTROL
TAPE MOTOR CONTROL
TIMER LED CONTROL
(+) POWER SUPPLY
AC RELAY CONTROL
SPEAKER OUTPUT RELAY CONTROL
SPEAKER OUTPUT DETECTION
TAPE 1 RUN PULSE INPUT
TAPE 2 RUN PULSE INPUT
CD CHANGER CLAMP SWITCH
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Function