Aiwa AM-CL33, Service Manual

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1 WSEL O Select signal terminal for writing flash memory (Normally L output).
2 WCLK O CLOCK terminal for writing flash memory (Normally L output).
3 WDATA O DATA I/O terminal for writing flash memory (Normally L output).
4 EMP I Electricity reduction interrupt input.
5 INTB I Interrupt request input from L89642.
6 WRQB I Interrupt request input from L89642.
7 ECO I ECO input terminal.
8 RESET I Micom reset.
9 XT1 – Connect to VDD.
10 XT2 – Not used (L Output).
11 VSS1 – Connect to GND.
12, 13 CF1, CF2 – 3[MHz] clock.
14 VDD1 – Connect to VDD.
15 KEY0 I Main unit KEY A/D input.
16 KEY1 I Remote control KEY input.
17 BATT I Battery voltage A/D input.
18 SE I Sledding drive voltage A/D input.
19 NC O Not used (L Output).
20 BEMFU I
21 BEMFV I Motor driver’s comparator output.
22 BEMFW I
23~25 S1~S3 O Sledding control output.
26 LED O Operation LED control signal output (LED ON with H).
27 CE0 O Chip select signal of LC89642.
28 SWDT0 O Serial data output to LC89642.
29 SRDT0 I Serial data input from LC89642.
30 SCLK0 O Serial clock output to LC89642.
31 DATA2 O Serial data output to EEPROM.
32 DATAE I Serial data input from EEPROM.
33 SCLK2 O Serial clock output to EEPROM.
34 CE2 O Chip select signal output of EEPROM.
35 BEEP O BEEP signal output.
36~40 NC O Not used (L Output).
41 SLPWM O PWM output for VM control of motor driver.
42 VDD2 – Connect to VDD.
43 VSS2 – Connect to GND.
44 KEY0 I Standby cancel signal input by the main unit KEY.
45 KEY1 I Standby cancel signal input by remote control KEY.
46 FOK I FOK signal input
47 VP I VP (CLV servo lock check) signal input.
48 MON3 I Monitor 3 signal input from LC89642.
49 MON2 I Monitor 2 signal input from LC89642.
IC DESCRIPTION
IC,
LC875164A
Pin No. Pin Name I/O Description