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Ref. No.
Application / Function
IC6
D3.3V REG.
IC7
A3.3V REG.
IC11
BU1.5V REG.
Q1
APC (Auto Power Control)
Q10~12
5V–3.3V Level Shift
Q13
Inverter
D1
Level Down
D2
Laser Diode Protection
D3,4
Static Electricity Countermeasure
MICROCOMPUTER'S TERMINAL DESCRIPTION
TE
L 13942296513
SYSTEM µ-COM: IC1 on X34- (ELECTRIC UNIT)
Pin No.
Pin Name
1
LX DATA M
2
LX CLK
3~5
NC
6
REMO
7
NC
8
BYTE
9
CNVSS
10
XCIN
11
XCOUT
12
RESET
13
XOUT
14
VSS
15
XIN
16
VCC1
17
NMI
www
18
PANEL DET
19,20
NC
.
21
ROMCOR DET
22,23
NC
COMPONENTS DESCRIPTION
Power supply for digital 3.3V.
Power supply for audio 3.3V.
Power supply for back-up 1.5V.
Drives LD (Laser Diode).
Converts signal from 5V to 3.3V, or from 3.3V to 5V.
Inverts ZDET signal.
Lowers signal level by about 1.2V so that Lo level signal that turns the regulator ON/OFF
surely becomes Lo judgment level of the regulator SW.
Prevents reverse bias which is applied to laser. Laser destruction prevention.
Prevents malfunction by static electricity.
I/O
Application
I/O
Data to slave unit
I/O
LX-BUS clock
-
Not used
I
Remote control signal input
-
Not used
I
Memory extended bus width setting
-
-
32.768kHz
-
32.768kHz
-
-
10.0MHz
-
-
10.0MHz
-
I
I
Panel communication detection
x
ao
u163
y
-
Not used
i
I
E2PROM writing request
-
Not used
KDC-W237AY/W237GY/W3037AY/W3037GY/
W311AY/W311GY/W3537AY/W3537GY/W4037Y
2 9
8
Operation / Condition / Compatibility
Q Q
3
6 7
1 3
1 5
Truth Value
Table
Pull-down (GND)
125k~65kHz
Output Lo fixed
Detects pulse width
Output L fixed
Connects to VSS
Connects to VSS
L: Reset
Connects to VSS
H: Panel detached, L: Panel attached
co
Output L fixed
.
H: Writing
Output L fixed
9 4
2 8
0 5
8
2 9
9 4
2 8
Processing Operation Description
m
9 9
9 9
5
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