Ic Description - Aiwa CDC-X227 YZ Service Manual

IC DESCRIPTION

IC, LC72358N-9A71
Pin No. Pin Name
1 XIN
2 TEST2
3 CD DATA IN
4 NC
5 CD CLOCK IN
6 E-VOL DO
7 LCD DI
8 LCD DO
9 LCD CLO
10 LCD CE
11 SQ OUT
12 COIN
13 CQCK
14 SD/ST
15 LOC/DX
16 IF REQ
17 BAND
18 TU ON
19 NC
20 E-VOL CE
21 ACC-CONT
22 KS4
23 KS3
24 KS2
25 KS1
26 KS0
27 K3
28 K2
29 K1
30 K0
31 VDD
32 E-VOL CLO
33 LM SW
34 NC
35 FEM+ LM+
36 FEM- LM-
37 RW
38 LP UP
39 CD ON
I/O
I System clock oscillator input.
- Not used.
I Input data signal for receiving from CD changer.(Not used)
- Not connected.
I Input synchronous clock signal for receiving from CD changer.
O Data output for volume level control.
I LCD driver data signal input.
O LCD driver data signal output.
O LCD driver clock signal output.
O LCD driver CE signal output.
I Sub-code Q input terminal.
O Command output terminal for DSP.
Transfer-out clock for command output or output terminal for sub-code transfer-in clock from
O
SQ OUT.
Stereo signal input when receiving. "H"= MONO, "L"= ST FM reception.
I
Channel detection signal input when FM/AM seeking. "H"= Detect channel.
O LOC/DX switching output when in the radio seek mode. "H"= LOC, "L"= DX.
O IF count signal request output.
O FM / AM power switch output. "H"= AM, "L"= FM.
O Radio power switch output. "H"= Radio mode. (Not used)
- Not connected.
O CE output for volume level control.
O Output CD changer ACC signal. (Not used)
O Initial setting diode matrix output. (Not used)
O Initial setting diode matrix output. (Not used)
O Initial setting diode matrix output. (Not used)
O Initial setting diode matrix output.
O Initial setting diode matrix output.
I Initial setting diode matrix input.
I Initial setting diode matrix input.
I Initial setting diode matrix input.
I Initial setting diode matrix input.
- Power supply.
O Clock output for volume level control.
O Loading or Thread Gain switch output.
- Not connected.
O Thread motor control terminal.
O Thread motor control terminal.
O RW disc control. Normal set to "H".
O RW disc control. Normal set to "L".
O CD power switch output.
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Description