Aiwa LCX-357 Service Manual page 22

IC DESCRIPTION
IC, LC867240A-5P33
Pin No. Pin Name
1 O-SCONTM
2 O-SCONTL
3 O-DATA
___________
4 I-TUNE/IFC
5 O-TUCL
6 O-COIN
7 I-SQOUT
___________
8 O-CQCK
9 O-RWC
_______________
10 O-CLKSFT
11 I-TMBASE
____________
12 I-RESET
13 XT1
14 XT2
15 VSS1
16, 17 CF1, CF2
18 VDD1
19 I-KEY0
20 I-KEY1
21 I-RDSIG
22 I-WRQ
23 I-DRF
24 I-DOOR
25 I-PUIN
26 I-SWTAPE
________________
27 I-STEREO
28 I-RDCL
________
29 I-REM
___________
30 I-HOLD
31 I-RDDT
32 I-TPREC
33 I-TPPLAY
34 O-MOTOR
35 O-PL
36-38 O-NC
39-55 S9-S25
56 VDD2
57 VSS2
58-79 S26-S47
80 I-CLKDSP
81 I-AS
I/O
O
M62439SP control. open drain output.
O
O Tuner control. CMOS output.
I Tuner control.
O Tuner control. CMOS output.
O CD control. open drain output.
I CD control.
O
CD control. open drain output.
O
O Clock shift output. "L" during shift. open drain output.
I 8 Hz time base input.
I Reset input.
I Input pin.
O Output pin for 32.768kHz crystal oscillation.
— GND.
I/O Main clock input/output 5.76 MHz.
— +5V.
I KEY0 A/D input.
I KEY1 A/D input.
I RDS signal level input. (A/D input)
I
CD control.
I
I CD door SW detection SW input. "L" at CLOSE.
I CD pick-up detection SW input. "L" at ON.
I Tape detection SW input. (A/D input)
I Monaural/stereo indication selector input. "L" at stereo.
I RDS clock input.
I Remote control input. (fall-down edge interrupt input)
I Hold mode detection. "L" at hold mode.
I RDS data input.
I Tape REC detection input. "H" at REC.
I Tape PLAY detection input. "H" at PLAY.
O Mechanism deck motor ON/OFF output. "H" at ON. CMOS output.
O Mechanism deck plunger solenoid ON/OFF output. "H" at ON. CMOS output .
O Not used.
O LCD SEG terminal Initial setting output. (S10 to S16)
— +5V.
— GND.
O LCD SEG terminal .
I Watch indication select input "L": 12H. "H": 24H.
I Auto stop. counter input .
32
Description