Sharp C3400C, Service Manual

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CD-C472/C3400/C3400C/C3800/C3800C
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IC701 RH-iX0192AWZZ:System Microcomputer (IX0192AW) (1/2)
1-7 FIP6-0 FL DRIVER Output Segment Output
8 VDD VDD — Connect with BACK UP VDD
9 P27 TAPE BIAS Output TAPE BIAS ON: H
10 P26 TAPE REC Output TAPE REC. ON:L
11 P25 T1/T2 Output TAPE2 PLAY:L
12 P24 CD DSP WRQ Input CD DSP Write request
13 P23 CD DSP RWC Output CD DSP Read write control
14 SCK1 CD DSP CQCK Output CD DSP Clock
15 SO1 CD DSP COIN Output CD DSP Comand
16 SI1 CD DSP SQOUT Input CD DSP Code Q out
17 RESET RESET Input Reset Input: L
18 P74 CD DSP RES Outout CD Dsplay Reset
19 P73 CD T/T OPEN/CLOSE Input CD Turntable open close
20 AVSS AVSS — Connect with GND
21 ANI7 CD UP/DOWN Intput CD mecha up/down CD disc no
CD DISC NO
22 ANI6 T2 RUN PLSE Input TAPE2 Run pulse
23 ANI5 L-CH CHECK Input/Output For TEST mode
24 ANI4 R-CH CHECK Input/Output For TEST mode
25 ANI3 KEY INPUT 3 Input Key input 3
26 ANI2 KEY INPUT 2 Input Key input 2
27 ANI1 KEY INPUT 1 Input Key input 1
28 ANI0 Initial setting input Input Initial setting input
29 AVDD AVDD — Connect with BACK UP VDD
30 AVREF AVREF — Connect with UNBACK UP VDD
31 P04 SRS Input SRS provided/not provided
32* XT2 — — Not connect
33 VSS VSS — Connect with GND
34 X1 X1 Input MAIN CLOCK 4.19MHz
35 X2 X2 Output MAIN CLOCK 4.19NHz
36 P37 C
2
B CL Output C
2
B Bus clock
37 P36 C 2 B CE Output C 2 B Bus chip enable
38 P35 C
2
B DI Output C
2
B Bus comand
39 P34 C
2
B DO Input C
2
B Bus data
40 P33 CD DRF Input Data read flug from DSP.
41 P32 CD PUIN Input L: Innermost periphery
42 P31 CD SL+ Output CD PICKUP Slide motor control.
43 P30 CD SL- Output CD PICKUP Slide motor control.
44 P03 POWER Output POWER ON: H
45 P02 CMUTE Output Center Mute
46 INPT1 SYSTEM STOP Input System Stop Signal
47 INPT0 REMOCON Input Remote Control Code Input
48 IC INTERNALLY — Connect with GND
CONECTED
49 P72 FMUTE Output Front MUTE ON: H
50 P71 TAPE SOL. Output TAPE SOL. ON: L
51 P70 TAPE MOTOR Output TAPE MOTOR ON: L
52 VDD VDD — Connect with BACK UP VDD
53 P127 D.PCE Input MIC MUTE: L
CD STOP, TAPE STOP state: Mute cancel
54 P126 RMUTE Output Rear MUTE
55 P125 TAPE F.P. Input TAPE FOOL PROOF REC: L
Port Name Terminal Name Pin No. Input/Output
In this unit, the terminal with asterisk mark (*) is (open) terminal which is not connected to the outside.