Aiwa LCX-157, Service Manual

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IC, LC867240A-5P15
IC DESCRIPTION
O-SCONTM
O-SCONTL
O-DATA
___________
I-TUNE/IFC
O-TUCL
O-COIN
I-SQOUT
___________
O-CQCK
O-RWC
_______________
O-CLKSFT
I-TMBASE
____________
I-RESET
XT1
XT2
VSS1
CF1, CF2
VDD1
I-KEY0
I-KEY1
I-RDSIG
I-WRQ
I-DRF
I-DOOR
I-PUIN
I-SWTAPE
________________
I-STEREO
I-RDCL
________
I-REM
___________
I-HOLD
I-RDDT
I-TPREC
I-TPPLAY
O-MOTOR
O-PL
O-NC
S9-S25
VDD2
VSS2
S26-S47
I-CLKDSP
I-AS
O
O
O
I
O
O
I
O
O
O
I
I
I
O
—
I/O
—
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
O
O
O
O
—
—
O
I
I
M62439SP control. open drain output.
Tuner control. CMOS output.
Tuner control.
Tuner control. CMOS output.
CD control. open drain output.
CD control.
CD control. open drain output.
Clock shift output. “L” during shift. open drain output.
8 Hz time base input.
Reset input.
Input pin.
Output pin for 32.768kHz crystal oscillation.
GND.
Main clock input/output 5.76 MHz.
+5V.
KEY0 A/D input.
KEY1 A/D input.
RDS signal level input. (A/D input)
CD control.
CD door SW detection SW input. “L” at CLOSE.
CD pick-up detection SW input. “L” at ON.
Tape detection SW input. (A/D input)
Monaural/stereo indication selector input. “L” at stereo.
RDS clock input.
Remote control input. (fall-down edge interrupt input)
Hold mode detection. “L” at hold mode.
RDS data input.
Tape REC detection input. “H” at REC.
Tape PLAY detection input. “H” at PLAY.
Mechanism deck motor ON/OFF output. “H” at ON. CMOS output.
Mechanism deck plunger solenoid ON/OFF output. “H” at ON. CMOS output .
Not used.
LCD SEG terminal Initial setting output. (S10 to S16)
+5V.
GND.
LCD SEG terminal .
Watch indication select input “L”: 12H. “H”: 24H.
Auto stop. counter input .
Pin No. Pin Name I/O Description