Aiwa CSD-ED27 Service Manual page 13

IC, LC867132V-5H52
Pin No. Pin Name
1 O-RMC
2 O-DATA
3 O-CLK
4 –
5 O-CLKSFT
6 I-HOLD
_______
7 I-RST
8 XT1
9 XT2
10 VSS1
11 CF1
12 CF2
13 VDD1
14 FM ST.
15 I-KEY0
16 I-CDSW
17 I-KEY1
18 I-MOTOR
19 I-REC
20 –
21 I-TUDO
22 ~24 –
25 O-INT
26 I-DRF
27 I-WRQ
28 I-REMO
29 ~ 40 S0 ~ S11
41 VDD3
42 VSS3
43 ~ 44 S12 ~ S13
45 ~ 50 S16 ~ S21
51 ~ 54 –
55 O-CD LED
56 O-TU LED
57 –
58 O-ROCK LED
59 O-POP LED
60 O-JAZZ LED
61 ~ 63 –
64 ~ 66 COM0 ~ COM2
67 –
I/O
O CD read/write control and TU chip enable
O Data for shift register 2092, PLL LC72121 and IC M62439.
O Clock for shift register 2092 and PLL LC72121.
– Not connected.
O Clock shift output for system microprocessor
I Hold status detection. "H": HOLD
I Microprocessor reset. ("L" when reset)
I
Connected to 32.768kHz crystal.
O
– GND
I
Connected to 6 MHz ceramic lock.
O
– Microprocessor power supply (µ-com 5 V).
I FM stereo detection input.
I Key AD input.
I CD tray open/close status detection input (AD)
I Operation key A/D input.
I DECK mechanism motor control input.
I Tape record detection input.
– Not connected.
I Data input from tuner LC72121.
– Not connected.
O Initial diode matrix detection output.
I CD (DETECT RF) RE level detection input.
I CD subcode Q standby input.
I Remote input.
O LCD common output.
– Microprocessor power supply (µ-com 5 V).
– GND.
O LCD segment outputs.
O LCD segment outputs.
– Not connected.
O CD LED ON/OFF output.
O RADIO LED ON/OFF output.
– Not connected.
O ROCK LED ON/OFF output.
O POP LED ON/OFF output.
O JAZZ LED ON/OFF output.
– Not connected.
O LCD common outputs.
– Not connected.
13
Description