Sharp CD-BA1200H Service Manual page 44

CD-BA1200H
IC701 RH-iX0337AWZZ: System Microcomputer (IX0337AW) (1/2)
Pin No. Port Name Terminal Name
1 VDD VDD
2 P37 —
3* P36 S-BUSY
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 CD INT
16 VDD VDD
17 P27 CD CLK/MCLK
18 P26 CD ID/MDI
19 P25 CD DO/MDO
20 P24 CD CE
21 P23 CE
22 P22 CLK
23 P21 DI
24 P20 DO
25 AVSS AVSS
26 ANI7 TUN SM
P17 M–BUSY
27 ANI6 NO USE
28 ANI5 SPEANA 2
29 ANI4 SPEANA 1
30 ANI3 SPEANA 0
31-33 ANI2-ANI0 KEY2-KEY0
34 AVDD AVDD
35 AVREF AVREF
36 INTP3 SYS STOP
37* P02 SPRLY
38 INTP1 NO USED
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 SPRLY
49 P125 SP DET
50 P124 T1 RUN
51 P123 T2 RUN
52 P122 CD CLAMP SW
53 P121 T1 PLAY SW_A
In this unit, the terminal with asterisk mark (*) is (open) terminal which is not connected to the outside.
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Input/Output
— (+) POWER SUPPLY
— GND
Output COMMUNICATE TO MPEG MICROCOMPUTER
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 CD DSP INTERRUPT
— (+) POWER SUPPLY
Output CD DSP CLOCK/MPEG MICROCOMPUTER CLOCK
Output CD DSP COMMAND/MPEG MICROCOMPUTER COMMA
Input CD DSP CODE Q OUT/MPEG MICROCOMPUTER DATA INPUT
Output CD DSP CE OUTPUT
Output CE OUTPUT
Output CLOCK OUTPUT
Output DATA OUTPUT
Output DATA INPUT
— ANALOG GROUND
Input TUNER SIGNAL METER INPUT
Input COMMUNICATE TO MPEG MICROCOMPUTER M_BUSY
Input GND
Input SPEANA DATA INPUT 16 kHz
Input SPEANA DATA INPUT 1 kHz
Input SPEANA DATA INPUT 63 kHz
Input KEY INPUT
— ANALOG VDD
— ANALOG REF VOLTAGE
Input SYSTEM STOP INPUT
Output SPEAKER OUTPUT RELAY CONTROL
Input GND
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
Input PLAY SWITCH FOR T1
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Function