Sharp CD-C602 Service Manual page 37

IC701 RH-iX0217AWZZ: System Microcomputer (IX0217AW)
Pin No. Port Name Terminal Name
1-9 S12-S20 SEG12-SEG20
10*-12* S21-S23 N.C.
13*-20* BP0-BP7 N.C.
21-24 COM0-COM3 COM0-COM3
25 BIAS BIAS
26 VLC0 VLC0
27* VLC1 (N.C.) VLC1
28* VLC2 (N.C.) VLC2
29 P40 KI0
30 P41 KI1
31 P42 KI2
32 P43 KI3
33 VSS VSS
34 P50 KO0
35 P51 KO1
36 P52 KO2
37 P53 KO3
38 P00 REMOCON
39 P01 SYSTEM STOP
40 P02 DRF
41 P03 WRQ
42 P10 REC
43 P11 DISC NO.
44 P12 PU IN
45 P13 SQOUT
46 P20 SL+
47 P21 RWC
48 P22 CQCK
49 P23 COIN
50 P30 SL–
51 P31 DSP RST
52 P32 POWER
53* P33 POWER (N.C.)
54 VDD VDD (+5V)
55* XT1 XT1 (N.C.)
56* XT2 XT2 (N.C.)
57 IC IC
58 X1 X1
59 X2 X2
60 P60 SPAN
61 P61 T2 PLAY
62 P62 T1 PLAY
63 P63 D0
64 P70 CL
65 P71 DI
66 P72 CE
67 P73 T1/T2
68 RESET RESET
69-80 S0-S11 SEG0-SEG11
In this unit, the terminal with asterisk mark (*) is (open) terminal which is not connected to the outside.
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Input/Output
Output LCD Segment
— Not connect
— Not connect
Output LCD Common
Output LCD Bias
— LCD Bias
— Not connect
— Not connect
Input Key In 0
Input Key In 1
Input Key In 2
Input Key In 3
— VSS
Output Key Out 0
Output Key Out 1
Output Key Out 2
Output Key Out 3
Input Remocon Input
Input System stop detect
Input Focus ok flug
Input Write request from contrroer
Input REC ON
Input Disc No. detector
Input Pickup In side switch
Input SQ data from DSP
Output Slide +
Output Read/Write control
Output Clock for CD DSP
Output Command data for DSP
Output Slide –
Output CD DSP Reset
Output Power ON/OFF control
— Not connect
— VDD +5V
— Not connect
— Not connect
— Connect to VDD
— X-TAL OSC IN
— X-TAL OSC OUT
Input Span selector 9K/10K
Input Tape 2 Play detect
Input Tape 1 Play detect
Input Data in to VOL/PLL
Output Clock for VOL/PLL
Output Data in to VOL/PLL
Output Chip enable for VOL/PLL
Output Tape play SW H: Tape 1 L: Tape 2
Input System reset
Output LCD Segment
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CD-C602,CP-C602
Function