1-10 (No.YA100)
2.3.4 PANEL CPU PIN FUNCTION [IC807 = DISPLAY INTERFACE PWB ASS'Y : DISPLAY UNIT]
Pin
Pin name
I/O
Function
Pin
Pin name
I/O
Function
1
SYSTEM0
I
PDP size select [0V=50V XGA, 1.75V=42V XGA]
34
NC
O
Not used
2
SYSTEM3
I
PDP maker select [0V=SAMSUNG, 1.75V=LG]
35
NMI
I
Port for writing on board control [Writing=L]
3
AVCC
-
5.0V power suplly
36
A_MU
O
Audio muting [Muting=H]
4
X2
-
Not used
37
HD
I
Not used
5
X1
-
GND
38
LED_ONTIMER
O
POWER LED stand-by control [ON=H]
6
VCL
-
GND
39
REMO
I
Not used
7
RES
I
Reset for panel CPU [Reset=L]
40
LED_POW
O
POWER LED control [ON=H]
8
TEST
I
GND
41
P85
I
Emulator connection / Port for writing on board [Writing=H]
9
VSS
-
GND
42
P86
-
Emulator connection
10
OSC2
O
System clock osillation (crystal) : 16MHz
43
P87
-
Emulator connection
11
OSC1
I
System clock osillation (crystal) : 16MHz
44
SCK3
O
Clock for writing on board
12
VCC
-
5.0V power suplly
45
RXD
I
Data receive for writing on board
13
PW_LOB
O
Power control [ON=L]
46
TXD
O
Data trnsmission for writing on board
14
PANEL_PW_ON
O
Panel power control [ON=L]
47
AC_DET
I
AC power frequency detection [Detection=H]
15
NC
O
Not used
48
NC
O
Not used
16
NC
O
Not used
49
RXD2
I
Data receive for main CPU communication
17
I2C_STOP
O
Inter IC (serial) bus stop control [Stop=L]
50
TXD2
O
Data transmission for main CPU communication
18
APL_S_CLK
O
Clock for APS loading [PD-50X795]
51
IRQ
O
Sleep mode release [Rlease=H]
19
PSCK
O
Clock for APS writing [PD-50X795]
52
ACTIVE
I
Power switch (mechanical) detection [Detection=H]
20
PLE
O
APS loading control [PD-50X795]
53
VD
I
V. sync pulse
21
CLE
O
APS writing control [PD-50X795]
54
REC_DET
I
System cable monitor for receiver unit [Connection=L]
22
PSSC
O
Data transmission for APS loading [PD-50X795]
55
PSS
I
PDP Inter IC (serial) bus communication select
[Permission=H][PD-42X795],
Data receive for APS loading [PD-50X795]
23
SDA1
I/O Data for Inter IC (serial) bus control : panel memory (IC805)
24
PWM
O
Not used
25
SCL1
O
Clock for Inter IC (serial) bus control : panel memory (IC805)
56
FAN_LOCK
I
Fan abnormality detection [Detection=L] [PD-50X795]
26
SDA0
I/O Data for Inter IC (serial) bus control : Audio control, Temp. sensor
57
SYSTEM2
I
Not used
27
SCL0
O
Clock for Inter IC (serial) bus control : Audio control, Temp. sensor
58
SYSTEM 1
I
Fan select [Used=H]
28
SDA2
I/O Data for Inter IC (serial) bus control : PDP communication
59
THEM_DET
I
Temp. sensor detection [Detection=H]
29
SCL2
O
Clock for Inter IC (serial) bus control : PDP communication
60
(AMP_PRO2)
I
GND
30
SLE
O
PDP communication control [PD-50X795]
61
AMP_PRO1
I
Not used
31
NC
I/O Not used
62
EE_CDS
I
Not used
32
NC
O
Not used
63
KEY1
I
Not used
33
NC
O
Not used
64
KEY2
I
Not used
d u p
a t o
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