Aiwa AM-HX50, Service Manual

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IC, LC875164A
IC DESCRIPTION
NC
EMP
INTB
NC
WRQB
RESET
XT1
XT2
VSS1
CF1, CF2
VDD1
KEY0
KEY1
BATT
SE
BEMFU
BEMFV
BEMFW
NC
S1-S3
LED
CE0
SWDT0
SRDT0
SCLK0
_______
P13/SO1
_______
P14/S11/SB1
_______
P15/SCK1
CE2
BEEP
SWDT2
SRDT2
SCLK2
__________
SI2P3/SCK20
BWCT
SLPWM
VDD2
VSS2
KEY0
KEY1
FOK
O
I
I
O
I
I
—
—
—
—
—
I
I
I
I
I
I
I
O
O
O
O
O
I
O
O
O
O
O
O
O
I
O
O
O
O
—
—
I
I
I
Not used (L output).
Interrupt input at reduced power supply voltage.
Interrupt request input from LC89641.
Not used (L output).
Interrupt request input from LC89641.
Microprocessor reset.
Connected to VDD.
Not used (L output).
Connected to GND.
3 [MHz] clock.
Connected to VDD.
A/D input of main unit KEY.
A/D input of remote control KEY.
A/D input of battery voltage.
A/D input of drive voltage of sled.
Comparator output of motor driver.
Not used (L output).
Sled control output.
Operation LED control signal output (LED ON at H).
Chip select signal of LC89641.
Serial data output to LC89641.
Serial data input from LC89641.
Serial clock output to LC89641.
Select signal output terminal for writing flash memory (normally L output).
Clock output terminal for writing flash memory (normally L output).
Data I/O terminal for writing flash memory (normally L output).
Chip select signal output to EEPROM.
BEEP signal output.
Serial data output to EEPROM.
Serial data input from EEPROM.
Serial clock output to EEPROM.
L output.
PWM output for adjustment of band-pass filter of LA9606.
PWM output for VM control of motor driver.
Connected to VDD.
Connected to GND.
Standby cancel signal input from main unit KEY.
Standby cancel signal input from remote control KEY.
FOK signal input.
Pin No. Pin Name I/O Description