(No.YA004)1-7
2.2.2 MAIN MICRO COMPUTER (CPU) FUNCTION
Pin No.
Pin name
I/O
Function
1
BS_RXD
O
Not used
2
MICON_V
I
Vertical sync for OSD / CLOSED CAPTION
3
LB_PRO
I
Low B protection detect [Detection : H]
4
NC
---
Not used
5
/RST
I
Reset [Reset : L]
6
HDMI_INT
I
Not used
7
/TEST
I
3.3V
8
OSD_YS
O
YS for OSD / CLOSED CAPTION
9
(DPCRST)
O
Not used
10
BS/DIN
O
Not used
11
(A_MU)(LED_5)
O
Not used
12
MICON_H
I
Horizontal sync for OSD / CLOSED CAPTION
13
(A_MU)(LED_4)
O
Not used
14
P46,OSDXI
---
Not used
15
P45,OSDXO
---
Not used
16
(SDA2)
I/O
Not used
17
AC_IN
I
AC power (60Hz) for time clock
18
(SCL2)
O
Not used
19
(TU_POW)
O
Not used
20
VCOI
I
LPF input
21
PDO
O
LPF output
22
/IP_RESET
O
Reset (L) [Reset : L]
23
OSD_YM
O
YM for OSD / CLOSED CAPTION
24
OSD_B
O
B signal output for OSD / CLOSED CAPTION
25
POW_LED
O
Lighting for power [Lighting : H]
26
OSD_G
O
G for OSD / CLOSED CAPTION
27
OSD_R
O
R for OSD / CLOSED CAPTION
28
VRE
I
Reference voltage
29
IP_ERR
I
AMDP program load
30
IREF
I
Reference current
31
COMP
I
Reference conpare
32
AVDD
I
3.3V
33
CLL
O
Not used
34
VREFLS
I
Reference voltage (For SUB CCD)
35
SUB_CCD
I
Not used
36
NC
---
Not used
37
VSS
I
GND
38
MAIN_CCD
I
Not used
39
VREFHS
I
Standard voltage (For Main CCD)
40
CLH
I
Not used
41
VDD/VPP
I
3.3V
42
CLKSW1
O
IP clock switch [ON : L]
43
CLKSW2
O
IP clock switch [ON : L]
44
ON_TIM
O
Not used
45
SBO01
O
Port for writing on board
Summary of Contents for LT-32WX84
Page 112: ...Troubleshooting 56 ...