Padma Electronics

30/07/2023

30/07/2023

04/01/2023

Dx-45 8 tr board china complete board are available 🎛🔈🔉🔊📢

16/03/2022

3.7 লিথিয়াম আয়ন ব্যাটারি এবং পাওয়ার ব্যাংক পাওয়ার ব্যাংক সার্কিট.

15/03/2022

learn with padma electronics.

04/02/2022

Average panel voltage .

16/12/2021

6" WOOFER SPEAKER AVAILABLE IN SAVAR ,DHAKA,BANGLADESH
01999960770

03/09/2021

1st step 12 voltage check
2st step 3.3 voltage check
3st step 1.8 voltage check
Testing point 👉
Vgh 25 voltage ya 32 voltage check
Vgl -5 voltage ya -10 voltage check
Dvdd 3.3 voltage check
Vda 12 voltage 14 voltage check
Avdd 12 voltage 15 voltage check
Havdd 8 voltage 9 voltage check
( Penal main Shorting koi bhi ho tu kuch seconds k liya voltage ⚡flash haa kar cale jate hai ☝️

17/08/2021

❇️ ✳️ Voltage & signal : 🌷

VDD: plus supply voltage -
3 type panels VCC = 3.3v, 5V, 12V

DVDD: digital voltage.= 3.3V.

AVDD: analog voltage = 12V to 17V.

Von:, TFT, Gate gate ON voltage =
20V to 30V.

Voff:, TFT, Gate gate OFF voltage =
-5v to -11v.

VCOM: CF (color filter) internal reference voltage = 5V to 7V.

Gamma voltages Example :
V1=11.48V, V2=11.36V, -----V10=3.59V, V11=3.21V, V12=2.53V, V13=0.43V, V14=0.16V.

🔷 Control signal for source drive : 🌷

STH: the start signal for the line data

CPH: source driver clock signal (data synchronization signal)

TP or Load: data output signal from source driver to display screen

MPOL (data reversal signal): in order to prevent liquid crystal aging, the voltage on the liquid crystal requires polarity reversal.

🔷 Control signal for gate drive : 🌷

STV (Start, Vertical): Gate start signal

CPV (Clock, Pulse, Vertical): the moving signal of the grid

OE1 (Output, Enable): gate output control signal.

🌷🤝🌹🤝💐🤝🙏🙏🙏

05/08/2021

PANEL OK BY CHANGING COF !
COF BONDING MACHINE ,SAVAR,DHAKA

04/08/2021

INVERTER DIAGRAM PIN !

02/08/2021

TYPE OF LVDS CABLE !