Sharp CD-MPS440W, Service Manual

Page: 58 / 84

CD-MPS440W
8 – 5
IC701 RH-iXA057SJZZ: System Microcomputer (IXA057SJ)
Pin No. Port Name Terminal Name Input/Output Function
1 P16 TIMER_LED Output Timer LED control.
2* P17 RDS_DATA Input/Output Open
3* P30 RDS_CLE Input/Output Open
4 P31 CD_CE Output CD DSP CE output.
5 P32 CD_RES Output CD DSP reset.
6 P33 MM+
7 P34 MM-
8* P35 PROG0 Input/Output Open
9* P36 PROG1 Input/Output Open
10* P37 PROG2 Input/Output Open
11 RES RESET IN PUT Input Reset signal input.
12* XT1 XT1 Input Open
13* XT2 XT2 Input/Output Open
14 VSS1 GND - Ground voltage.
15 CF1 CF1 Input Main clock.
16 CF2 CF2 Output Main clock.
17 VDD1 VDD1 - (+)Power supply.
18 P80 KEY1_IN Input Key input.
19 P81 KEY2_IN Input Key input.
20* P82 SPAN
21 P83 FAN_PRT Input Fan protect circuit input.
22 P84 MODE_CKECK Input Ground level input.
23 P85 T2_TAPE2_SW Input Tape SW detection.
24* P86 EEP_DAT
25* P87 RDS_VSM Input/Output Open
26 P70 SYS_STOP Input System stop input.
27 P71 X-BASS/DEMO Input Key input.
28 P72 POWER_KEY Input Key input.
29 P73 IRQ Input Remocon input.
30-38 P74 G9-G1 Output FL(VFD) segment driver.
39*-45* S9/T9-S15/T15 NO USE Input/Output Open
46 VDD3 VDD3 - (+)Power supply.
47-50 S16-S19 P1-P4 Output FL(VFD) segment driver.
51 FIX0 GND - Connect to GND.
52-67 S20-S35 P5-P20 Output FL(VFD) segment driver.
68 S36 DISC_NO_SW Input Tray disc no. SW detection
69 S37 DISC1_SW Input Tray disc 1 SW detection.
70 S38 DISC_UP_SW Input Tray disc up SW detection.
71 S39 CLOSE_SW Input Tray close SW detection.
72 VDD4 VDD4 - (+) Power supply.
73 S40 ROTATE Output Tray motor control.
74 S41 DISC_DOWN_SW Input Tray disc down SW detection.
75 S42 OPEN_SW Input Tray open SW detection.
76 S43 TAPE_BIAS Output Tape record bias.
77 S44 REC_PLAY Output Tape REC/PLAY change.
78 S45 REC Input Tape 2 rec SW detection.
79 S46 MOTOR Output Tape motor control.
80 S47 T1_SOL Output Tape 1 solenoid control.
81 S48 T2_SOL Output Tape 2 solenoid control.
82 S49 T1_RUN_PLUS Input Tape 1 RUN PULSE input.
83 S50 T2_RUN_PLUS Input Tape 2 RUN PULSE input.
84 S51 CH_SW Output Tape T1/T2 switch output.
85 P00 CD+B Output CD servo power supply circuit control output.
86* P01 P_CON Input/Output Open
87 P02 CL
88 P03 P_MUTE Output Power mute output.
89 VSS2 GND - GND
90 VDD2 VDD2 - (+) Power supply.
91 P04 SIGAL_LVL Input Power Amp.output level detection signal input.
92 P05 FAN _START Output Fan motor control.
93 P06 SP_DETECT Output Speaker output detect.
94 P07 SP_RELAY Output Speaker relay control.
95 P10 DI Output Data output.