
INPUT / OUTPUT TERMINALS
TFT LCD Panel Driving
Pin No
Symbol
1
/HSY
2
3
CSY /
I/O
I/O
O
I
Description
Remark
Horizontal sync input / output
Video polarity alternating signal
Composite sync signal
FRP
HSY
V
GH
V
GL
V
B
V
R
V
G
GND
VDD
VCC
GND
CKC
/VSY
PSI
PSC
NC
UD
RL
NP
Note 1
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
I
I
I
I
I
I
I
I
I
I
Supply voltage for gate driver (Hi level)
Supply voltage for gate driver (Low level)
Video signal (Blue)
Video signal (Red)
Video signal (Green)
Ground
Supply voltage for controller
Supply voltage for source driver
Ground
Control pin for select I/O signal
Vertical sync input/output
Synchronize pulse for decoder
Synchronize pulse for DC-DC converter
No connection / Vertical sync signal
Up / Down control
Right / Left shift control
NTSC / PAL selection signal (Low : PAL, High : NTSC)
Note 2
Note 3
Note 4
Note 5
Note 1
I/O
O
O
I
I
I
I/O
Note 1
Note 7
Note 6
Note 8
Note 1:
This module can support 2 input mode. Pin #13 of CKC is for the 2 input mode selection.
Select pin (CKC)
Parameter
CKC (pin #13)
Composite sync mode
High
Sync separate mode
Low
The default mode of this module is composite sync mode (CKC = high)
If you use sync separate mode CKC = ow), please contact AZ Displays to modify some components of PCBA.
Note 2:
V
GH
(typ) = +17V
Note 3:
V
GL
(typ) = -15V
Note 4:
VDD (typ) = +5V
Note 5:
VCC (typ) = +5V
Note 6:
Low (0V) for shift Right; input Hi (+5.0V) for inverse (shift Left).
Note 7:
Hi (+5.0V) for Down; Low (0V) for Up.
Note 8:
PAL = Low (0V), NTSC = Hi (+5.0V)
(If use auto detect, this pin is output, otherwise this pin is input)
Low
High
Note 6
Right
Left
Note 7
Down
Up
Note 8
PAL
NTSC
Description
CSY / HSY (pin #3)
CSY (positive edge)
HSY (negative edge)
NC / VSY (pin #17)
-
VSY (positive edge)
Backlight driving
Pin No
1
3
Note 9:
Low voltage side of backlight inverter connects with Ground of inverter circuits.
Symbol
VL1
VL2
Description
Remark
Wire color : pink
Wire color : white (Note 9)
Input terminal (Hi voltage side)
Input terminal (Low voltage side)
Input / Output connector
LCD module: Molex 52271-2090
FFC down connector; 20 pins, pitch: 1.0mm
Backlight connector: JST BHR-03VS-1
3 pins, pitch: 4.0mm, Pink: high voltage, White: low voltage
ATM3224C-NC-FTH
5" TFT
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