Aiwa cdc-x217 Service Manual page 26

IC DESCRIPTION
IC, LC72358N-9A04
Pin No. Pin Name
1 XIN
2 TEST 2
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 , 23 KS4 , KS3
24 ~ 26 KS2 ~ KS0
27 ~ 30 K3 ~ K0
31 VDD
32 E-VOL CLO
33 LM+
34 LM-
35 FEM+
36 FEM-
37 RW
38 LP UP
39 CD ON
40 A-MUTE
41 POWER CONT
42 ST-BY MUTE
43 POWER MUTE
44 BEEP
45 DFP IN
46 DRF
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. (Not used.)
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.
I Initial setting diode matrix input.
- Power supply.
O Clock output for volume level control.
O Loading motor control terminal.
O Loading motor control terminal.
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.
O Audio mute signal output.
O Power control signal output.
O ST-BY mute signal output.
O Power mute signal output.
O BEEP output (3 kHz, 50 ms).
I Front panel detection.
I "Detect RF" RF level detection input. Pulled up when not used.
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Description