Ic Description - Aiwa LCX-357 HR Service Manual

IC DESCRIPTION

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IC, LC867240A-5P33
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Pin No. Pin Name I/O
1 O-SCONTM O
M62439SP control. open drain output.
2 O-SCONTL O
3 O-DATA O Tuner control. CMOS output.
___________
4 I-TUNE/IFC I Tuner control.
5 O-TUCL O Tuner control. CMOS output.
6 O-COIN O CD control. open drain output.
7 I-SQOUT I CD control.
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8 O-CQCK O
CD control. open drain output.
9 O-RWC O
_______________
10 O-CLKSFT O Clock shift output. "L" during shift. open drain output.
11 I-TMBASE I 8 Hz time base input.
____________
12 I-RESET I Reset input.
13 XT1 I Input pin.
14 XT2 O Output pin for 32.768kHz crystal oscillation.
15 VSS1 — GND.
16, 17 CF1, CF2 I/O Main clock input/output 5.76 MHz.
18 VDD1 — +5V.
19 I-KEY0 I KEY0 A/D input.
20 I-KEY1 I KEY1 A/D input.
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21 I-RDSIG I RDS signal level input. (A/D input)
22 I-WRQ I
CD control.
23 I-DRF I
24 I-DOOR I CD door SW detection SW input. "L" at CLOSE.
25 I-PUIN I CD pick-up detection SW input. "L" at ON.
26 I-SWTAPE I Tape detection SW input. (A/D input)
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27 I-STEREO I Monaural/stereo indication selector input. "L" at stereo.
28 I-RDCL I RDS clock input.
________
29 I-REM I Remote control input. (fall-down edge interrupt input)
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30 I-HOLD I Hold mode detection. "L" at hold mode.
31 I-RDDT I RDS data input.
32 I-TPREC I Tape REC detection input. "H" at REC.
33 I-TPPLAY I Tape PLAY detection input. "H" at PLAY.
34 O-MOTOR O Mechanism deck motor ON/OFF output. "H" at ON. CMOS output.
35 O-PL O Mechanism deck plunger solenoid ON/OFF output. "H" at ON. CMOS output .
36-38 O-NC O Not used.
39-55 S9-S25 O LCD SEG terminal Initial setting output. (S10 to S16)
56 VDD2 — +5V.
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57 VSS2 — GND.
58-79 S26-S47 O LCD SEG terminal .
80 I-CLKDSP I Watch indication select input "L": 12H. "H": 24H.
81 I-AS I Auto stop. counter input .
Description
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Pin No. Pin Name
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82 I-STOP
83-86 COM0-COM3
87 I-INIT
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88 I-AC/DC
89 VSS3
90 VDD3
91 O-NC
92 O-TUCE
93 O-CD-ON
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94 O-TU-ON
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95 O-RMT
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96 O-REC/PB
97 O-MUTE
98 O-PCONT
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99 O-BIAS
100 O-NC
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I/O Description
I Tape stop input.
O LCD common output.
I Initial setting input.
O Beat selector output. "H" during selection. CMOS output .
— GND.
— 5V.
O Not used.
O Tuner chip enable output. CMOS output .
O "H" output during CD function. CMOS output.
O "H" output during TU function. Open drain output.
O REC mute output. "H" during mute. Open drain output.
O REC/PB select output. "H" during PB. Open drain output.
O Mute output. "H" during mute. Open drain output.
O Power control output. "H" at ON. CMOS output.
O REC bias ON/OFF output. "H" at ON. Open drain output.
O Not used.
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