Aiwa CSD-ED79 Service Manual page 17

IC DESCRIPTION
IC, LC867132V-5K36
Pin No. Pin Name
O-RMC/CE
1
O-DATA
2
O-CLK
3
NC
4
O-CK SFT
5
I-HOLD
6
I-RST
7
XT1 (IN)
8
XT2 (OUT)
9
VSS1
10
CF1 (IN)
11
CF2 (OUT)
12
VDD1
13
I-FM ST
14
I-KEYO
15
I-CD SW
16
I-KEY1
17
I-MOTOR
18
I-REC
19
I-FM/AM (NC)
20
I-TU DO
21
O-BASS LED
22
O-QS LED
23
O-DUBB LED (NC)
24
O-INT
25
I-DRF
26
I-WRQ
27
I-REMO
28
SO-PAO
29
S1/PA1
30
S2/PA2
31
S3/PA3
32
S4/PA4
33
S5/PA5
34
S6/PA6
35
S7/PA7
36
S8~S11
37~40
VDD3
41
VSS3
42
S12~S19
43~50
S20~S23 (NC)
51~54
O-CD LED
55
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I/O
O CD read/write control output and TU CE.
O Data output to LC72121M, M62495FP.
O Output LC72121M CLK.
– Not Connected.
O Clock shift output of the microcomputer.
I Hold status detection.
I Microcomputer reset.
I
Connected to 32.768KHZ crystal oscillator.
O
– GND.
I
Connected to 6MHZ Ceramic Filter.
O
— Power supply for microcomputer (+5V).
I FM STEREO status input.
I KEY AD input.
CD DOOR SW status detection input.
I
I KEY AD input.
I DECK MECHA MOTOR status input.
I REC status input.
I FM, AM status input. (Not connected)
I Data input from LC72121M.
O BASS LED ON/OFF control output.
O Q-Sound LED ON/OFF control output.
O LED control output used for high-speed dubbing. (Not connected)
O INT DIODE MATRIX detection output.
I CD RF level detection input.
I CD sub-code Q standby input.
I Remote control input.
O LCD segment output and initial settings output. (SW)
O LCD segment output and initial settings output. (LW)
O LCD segment output and initial settings output. (MW 10K)
O LCD segment output and initial settings output. (FM WIDE)
O LCD segment output and initial settings output. (OIRT)
O LCD segment output and initial settings output. (SW2)
O LCD segment output and initial settings output. (ZCH)
O
LCD segment output and initial settings output.
O
— Power supply for microcomputer (+5V).
— GND.
O LCD segment output.
O LCD segment output. (Not Connected)
O LED ON/OFF control output for CD functions.
Description
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