Sharp CD-BK260V Service Manual page 55

IC701 RH-iX0411AWZZ: System Microcomputer (IX0411AW) (1/2)
Pin No. Port Name Terminal Name
1 VDD VDD
2 P37 -20 dB ATT
3 P36 NO USE
DSA_STB
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 XVPP/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
26 ANI7 O/C SW
DISC NO SW
P17 DSA_DATA
27 ANI6 NO USE
TUNER SM
P16 DSA_ACK
28 ANI5 SPEANA 2
29 ANI4 SPEANA 1
30 ANI3 SPEANA 0
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
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 -20 dB ATTENUATOR.
Output GND
Input/Output DSA STROBE.
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/Output DSA DATA INPUT.
Input GND
Input TUNER SIGNAL METER INPUT.
Input/Output DSA ACKNOWLEDGE.
Input SPEANA DATA INPUT 16 kHz.
Input SPEANA DATA INPUT 1 kHz.
Input SPEANA DATA INPUT 63 kHz.
Input KEY INPUT.
Input ANALOG VDD.
— 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.
Input (+) POWER SUPPLY.
Output AC RELAY CONTROL.
Output SPEAKER OUTPUT RELAY CONTROL.
Input SPEAKER OUTPUT DETECTION.
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CD-BK260V/CD-BK2700V/CD-BK280V
Function