Sharp CD-C421H Service Manual page 46

CD-C421H / C411H
IC601 RH-iX0225AWZZ:Main System Microcomputer (IX0225AW) (1/2)
Pin No. Port Name
Terminal Name
1* P94
2 P93 T_RECPLY
3* P92
4* P91 MUT
5 P90 DSPRES
6 P81 SLM2
7 P80 SLM1
8 VDD VDD
9 SCK0 CD CQCK
10 SO0 CD COOUT
11 SI0 CD SQIN
12 P24 WRQ
13 P23 RWC
14 SCK1 MAIN SCK
15 SO1 MAIN SO
16 SI1 MAIN SI
17 RESET RESET
18 P74 MAIN_ST
19 P73 PUINSW
20 AVSS AVSS
21 P17 FRF
22 P16 T1FAS
23 ANI5 T2 RUN
24-28 ANI4-0
29 AVDD AVDD
30 AVREF AVREF
31 P04 CAM SW
32* XT2
33 VSS VSS
34 X1 X1
35 X2 X2
36* P37 LMUTE
37*-38* P36-35
39* P34 SMUTE
40* P33
41*-43* P32-30
44 P03 SP_DET
45 P02 STANBY
46* P01 SPRLY
47 P00 T2CRO2
48 IC IC
49* P72
50 P71 T_SOL
51 P70 T_MOTOR
52 VDD VDD
53 P127
54 P126
55 P125
56 P124 T1CRO2
57*-60* P123-120
61* P117
62* P116 SPN_P
In this unit, the terminal with asterisk mark (*) is (open) terminal which is not connected to the outside.
Input/Output
Output Not used OUT:H OPEN
Output REC/P.B Selection
Output Not used OUT:H OPEN
Output CD Mute Contorol
Output Reset Output For CD Display
Output CD Slide Motor–
Output CD Slide Motor+
— Power Terminal
Output Clock Output For CD
Output Data Output For CD
Input Data Input From CD
Input CD WRQ
Output CD WRC
Input System Microcomputer Clock
Output System Microcomputer Data Output
Input System Microcomputer Data Input
Input Reset
Input System Microcomputer Stove Input
Input CD PUIN–SW
— Analog Ground
Input Detecting of CD RF Level
Input TAPE1 Full Auto Stop, Pulse Input
Input TAPE2 RUN Pulse Input
Output Not used OUT:H OPEN
— Analog VDD
— Analog Ref Potential
Input TAPE CAM–SW
Output Not used OPEN
— GND Potential
Input Main Clock 4.19MHz
Output Main Clock 4.19MHz
Output LINE MUTE
Output Not used OUT:H OPEN
Output System Mute
Output Not used OUT:H OPEN
Output Not used OUT:L OPEN
Input Detecting of SP Output Error
Output Setting Power Control
Output SP Output Relay Control
Input TAPE2 Detecting of Chrome Tape
Internally Connected
Output Not used OUT:L OPEN
Output TAPE Solenoid Control
Output TAPE Motor Control
+Power Supply
Input CD TRAY Open/Close SW
Input CD TRAY Disc No,SW
Input CD Mechanizm Detecting of Up/Down chucking
Input TAPE1 Detecting of CrO2 TAPE
Output Not used OUT:H OPEN
Output Not used OUT:H OPEN
Input Tuner Span Selection
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Function