Sharp MD X5 Service Manual Page 78
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- Table of contents
- TROUBLESHOOTING
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MD-X5H/CP-X5H
– 78 –
IC901 RH-iX2718AFZZ:System Control Microcomputer(iX2718AF) (1/2)
1*-4* C-SW1-C-SW4
P120/RTP0-P123/RTP3
In/Output Real time output port to output data synchronizing with trigger
5*-8*
TRY_SW1-TRY_SW4
P124/RTP4-P127/RTP7
In/Output Real time output port to output data synchronizing with trigger
9 VDD VDD — Power terminal
10 MAIN CLK OUT X2 — Connection of crystal for main system clock oscillation
11 MAIN CLK IN X1 Input Connection of crystal for main system clock oscillation
12 Vss Vss — GND
13* SUB CLK OUT XT2 — Connection of subsystem clock oscillation
14 SUB CLK IN XT1 Input Connection of subsystem clock oscillation
15 RESET RESET Input System reset input
16 RX IN P00/INTP0 In/Output External interruption request input
17 P-IN P01/INTP1 In/Output External interruption request input
18 NAME IN P02/INTP2/NMI In/Output External interruption request input
19*
KB DATA IN/OUT
P03/INTP3 In/Output External interruption request input
20* KB CLK IN/OUT P04/INTP4 In/Output External interruption request input
21* PROTECT P05/INTP5 In/Output External interruption request input
22 DSTB P06/INTP6 In/Output External interruption request input
23 AVDD AVDD — Positive power for A/D converter. Connection to VDD
24 ANREF0 AVREF0 — Application of reference voltage for A/D converter
25-29 KEY0-KEY4
P10/ANI0-P14/ANI4
Input Analog voltage input for A/D converter
30 INTIAL AREA P15/ANI5 Input Analog voltage input for A/D converter
31* SPAN SELECT P16/ANI6 Input Analog voltage input for A/D converter
32* VSM P17/ANI7 Input Analog voltage input for A/D converter
33 AVSS AVSS — GND for A/D converter, D/A converter. Connection to VSS
34 SD P130/ANO0 In/Output GND for A/D converter, D/A converter. Connection to VSS
35* P131/ANO1 In/Output GND for A/D converter, D/A converter. Connection to VSS
36 AVREF1 AVREF1 — Application of reference voltage for A/D converter
37 PC_IN P70/RxD2/SI2 In/Output Serial data input (UART2)
38 PC_OUT P71/TxD2/SO2 In/Output Serial data output (UART2)
39 VLOAD
P72/ASCK2/SCK2
In/Output Baud rate clock input (UAET2)
40 MD-DATA P20/RxD1/SI1 In/Output Serial data input (UART1)
41 K-DATA P21/TxD1/SO1 In/Output Serial data output (UART1)
42 DSCK
P22/ASCK1/SCK1
In/Output Baud rate clock input (UAET1)
43 MIC_SW P23/PCL In/Output Clock output (For trimming of main system clock and subsystem clock)
44 RWC P24/BUZ In/Output Buzzer output
45 SQOUT P25/SI0/SDA0 In/Output Serial data input (3-line type serial I/O0)
46 COIN P26/SO0 In/Output Serial data input (3-line type serial I/O0)
47 CQCK P27/SCK0/SCL0 In/Output Serial clock input/output (3-line type serial I/O0)
48 RES P80/A0 In/Output Low-order address bus in case of external memory expansion
49 WRQ P81/A1 In/Output Low-order address bus in case of external memory expansion
50 DRF P82/A2 In/Output Low-order address bus in case of external memory expansion
51 SL+ P83/A3 In/Output Low-order address bus in case of external memory expansion
52 SL- P84/A4 In/Output Low-order address bus in case of external memory expansion
53 PU IN P85/A5 In/Output Low-order address bus in case of external memory expansion
54 CD-MUTE P86/A6 In/Output Low-order address bus in case of external memory expansion
55 MIC_MUTE P87/A7 In/Output Low-order address bus in case of external memory expansion
56 S-MUTE P40/AD0 In/Output Low-order address/data bus in case of external memory expansion
57 L-MUTE P41/AD1 In/Output Low-order address/data bus in case of external memory expansion
58 RLY P42/AD2 In/Output Low-order address/data bus in case of external memory expansion
59 POWER P43/AD3 In/Output Low-order address/data bus in case of external memory expansion
60 DIN_IN_B P44/AD4 In/Output Low-order address/data bus in case of external memory expansion
61 DIN_IN_A P45/AD5 In/Output Low-order address/data bus in case of external memory expansion
FUNCTION TABLE OF IC
Pin No.
FunctionTerminal Name
Input/Output
Port Name
In this unit, the terminal with asterisk mark (*) is (open) terminal which is not connected to the outside.
- SERVICE MANUAL 1
- WARNINGS (MD) 2
- WARNINGS (CD) 2
- SPECIFICATIONS 3
- NAMES OF PARTS 4
- DISASSEMBLY 8
- Jack PWB 9
- Front Panel 9
- MD-X5H/CP-X5H 10
- MD Mechanism 11
- Magnetic Head 11
- CD MECHANISM SECTION 13
- ADJUSTMENT 14
- CD TEST MODE 15
- ASPM, summary operation 17
- 1, f2, f3 (same PTY) 18
- 4, f5 (same PTY) 18
- MD SECTION 20
- Loosen the 29
- Lead-In Switch 29
- Mechanism Switch PWB 29
- 1pin of IC 1201 (TP1274) 30
- 88 pin of IC 1201 (TP1275) 30
- EXPLANATION OF ERROR DISPLAY 31
- NOTES ON SCHEMATIC DIAGRAM 35
- MAIN PWB–A1(1/3) 40
- MAIN PWB - A1 (2/3) 42
- TO JACK SECTION 43
- P52 1 - C, 1 - B 43
- 8 9 10 11 12 49
- 74HC153F 51
- INVERTER 51
- TO CD SERVO PWB 59
- P61 9 - B 59
- VOLTAGE (MD MAIN PWB) 65
- GROOVE PLAY 67
- 1 kHz 0dB PLAY 68
- TROUBLESHOOTING (CD SECTION) 69
- 1.0V/DIV 70
- 0.5µsec/DIV(DC) 70
- (When playing 70
- • Check the tracking system 71
- Figure 71 71
- • Check the spindle system 71
- TROUBLE SHOOTING (MD SECTION) 73
- FUNCTION TABLE OF IC 78
- IX2718AF 80
- REF — + 3.15V 85
- PARTS GUIDE 87
- — M E M O — 101
- ALL RIGHTS RESERVED 104
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