Sharp MD-MT877, Руководство по обслуживанию

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MD-MT877/MD-MT877C
FUNCTION TABLE OF IC
1 PE5 SYRS Output System LSI register selection output.
2 PE6 _SYRD Output System LSI read enable output.
3 PE7 _SYWR Output System LSI write enable output.
4-11 PD0-PD7 SYD0-SYD7 Input/Output System LSI parallel data bus.
12 CVCC CVCC Input Power supply of internal voltage drop circuit.
13 PC0 PCLAT Output Record audio IC data latch output.
14 Vss VSS — Ground potential.
15 PC1 _MCPGI Input Microphone plug insertion detection input.
16 PC2 _INPGI Input Line/digital plug insertion detection.
17 PC3 INPGCK Input Line/digital plug type detection.
18 PC4 RCPCNT Input/Output Record circuit power control output.
19* PC5 TEST1 Input Test mode setting input 1.
20* PC6 TEST0 Input Test mode setting input 0.
21 PC7 JPNP Input Kana conversion/Kana input existence/nonexistence discrimination.
22 PB0 OPICGA Output P.U detection sensitivity switching output.
23 PB1 RFRCNT Output RF_LSI power supply ON/OFF control output.
24 TIOCC3 BUZOUT Output Beep sound pulse output.
25 PB3 SGAIN Output RF amp gain pllarity switching output.
26 PB4 DISCP Output RF amp TE polarity switching output.
27* TIOCB4 MCMON Output Internal operation status monitor.
28 PB6 RACLK Output Audio IC data clock output.
29 PB7 RADAT Output Audio IC serial data output.
30 PA0 CHGCNT Output Charge control.
31 TxD2 DSPDAT Output Unit indication data output.
32 PA2 DSPSTB Output Unit display strobe output.
33 SCK2 DSPSCK Output Unit indication data clock output.
34 P10 PBOPON Output Audio IC output stage control output.
35* P11 P11 Output Reserve
36 P12/TCLKA CIN Input Track cross signal/focus drive detection.
37 TCLKB SPIN Input Spindle motor FG pulse detection input.
38 IRQ0 _DINT Input System LSI interruption.
39 P15 DISCPR Input Disc record inhibition switch input.
40 IRQ1 ARQD Input Disk cap opens and closes detection/it is started and required.
41* P17 P17 Output Reserve
42 AVSS AVSS — A/D and D/A converter ground potential.
43 DA1 LDVAR Output P.U. laser power setting output.
44* DA0 PA0 Output Reserve
45 AN7 RKCNG Input Remote control button operation detection input.
46 AN6 TEMP Input Ambient temperature detection input.
47 AN5 HKEY2 Input Unit button operation detection input 2.
48 AN4 HKEY1 Input Unit button operation detection input 1.
49 AN3 RKEY Input Remote control button operation detection input.
50 AN2 STDCK Input Lithium battery voltage detection input.
51 AN1 PLVDCI Input DC IN voltage detection input.
52 AN0 PLVBAT Input DC voltage detection input.
53 Vref VREF — A/D and D/A converter reference voltage.
54 AVCC AVCC Input A/D and D/A converter positive power supply.
55 MD0 MD0 Input Operation mode selection input 0.
56 MD1 MD1 Input Operation mode selection input 1.
57* OSC2 OSC2 — Sub clock (not used).
IC401 RH-iX0419AWZZ :System Microcomputer (IX0419AW) (1/2)
Pin No.
Function Port Name Terminal Name Input/Output
In this unit, the terminal with asterisk mark (*) is open terminal which is not connected to the outside.