Sharp CD-BA250 Service Manual page 46

CD-BA250/CD-BA2600
IC701 RH-iX0399AWZZ: System Microcomputer (IX0399AW) (1/2)
Pin No. Port Name Terminal 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.
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Input/Output
Input (+) POWER SUPPLY
Output -20dB ATTENUATOR
Output GND
Output TAPE RECORD BIAS
Output TAPE T1/T2 CHANGE
Output TAPE REC/PLAY CHANGE
Output CD DSP RESET&MPEG MICROCOMPUTER RESET
Input CD RF LEVEL DETECTION
Input CD DSP WRITE REQUEST
Input RESET
Output MAIN CLOCK
Input MAIN CLOCK
— GND
— OPEN
Input TUNER SPAN CHANGE
— (+) POWER SUPPLY
Output CD DSP CLOCK
Output CD DSP COMMAND
Input CD DSP CODE Q OUT/
Output CD DSP CE OUTPUT
Output CE OUTPUT
Output CLOCK OUTPUT
Output DATA OUTPUT
Input DATA INPUT
— ANALOG GROUND
Input CD OPEN/CLOSE SWITCH
Input CD DISC NUMBER SWITCH
Input TUNER SIGNAL METER INPUT
Input/Output DSA ACR
Input SPEANA DATA INPUT 16 kHz
Input SPEANA DATA INPUT 1 kHz
Input SPEANA DATA INPUT 63 kHz
Input KEY INPUT
Input ANALOG VDD
Input ANALOG REF VOLTAGE
Input POWER FAILURE DETECT
Input JOG VOLUME INPUT 1
Input JOG VOLUME INPUT 0
Input REMOCON INPUT
— GROUND VOLTAGE
Output SYSTEM MUTE CONTROL
Output TAPE 2 SOLENOID CONTROL
Output TAPE 1 SOLENOID CONTROL
Output TAPE MOTOR CONTROL
Output TIMER LED CONTROL
— (+) POWER SUPPLY
Output AC RELAY CONTROL
Output SPEAKER OUTPUT RELAY CONTROL
Input SPEAKER OUTPUT DETECTION
Input TAPE 1 RUN PULSE INPUT
Input TAPE 2 RUN PULSE INPUT
Input CD CHANGER CLAMP SWITCH
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Function