AIWA CDC-X227 Service Manual - Page 28

Description - how to set clock

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

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