Sharp CD-BA250H Service Manual page 41

CD-BA250H/CD-BA2600H
IC701 RH-iX0401AWZZ: System Microcomputer (IX0401AW) (1/2)
Pin No. Port Name Terminal Name
1 VDD VDD
2 P37 -20 dB ATT
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 SPAN
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
26 ANI7 O/C SW
DISC NO SW
27 ANI6 TUNER SM
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 SPK_DET
50 P124 T 1 RUN
51 P123 T 2 RUN
52 P122 CD CLAMP SW
In this unit, the terminal with asterisk mark (*) is (open) terminal which is not connected to the outside.
All manuals and user guides at all-guides.com
Input/Output
Input (+) POWER SUPPLY.
Output -20 dB 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.
Input (+) 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 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.
— GND
— 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.
Input (+) 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.
– 48 –
Function