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Shenzhen Porstar Electronics Co.,Ltd

Add: 7th JunXing Industrial Road, LingWu Industrial Park, HuanGuan Road, Guanlan Town, Baoan District, Shenzhen, China

Tel: +86 755 6660 5668

Fax: +86 755 6167 3308

Email: michael.chang@porstarled.net

Website: www.ledporstar.com

www.pstled.com

Skype: michael870613

Postcode: 518108

Service Hotline
+86 755 6660 5668
P2mm Indoor Fixed LED Display

P2mm Indoor Fixed LED Display

1.HD video led advertising display. 2.High refresh rate. 3.Front-sides or rear side maintenance. 4.High clearance,great display effect.

Product Details

p2 indoor fixed led screen.


p2mm led display panle


p2mm indoor LED board.


p2mm LED DISPALY PANLE


P2 INDOOR FIXED LED WIKI


P2  INDOOR LED SINGS


P2 INDOOR LED DISPLAY.


P2 LED BOARD.


P2 FIXED LED VIDEO DISPLAY


P2 INDOOR DISPLAY SCREEN.


p2 led sings board.


FAQ:

Failure analysis and maintenance for LED unit board ?

A. All board is not bright, 

   1. Check power supply and signal lines if connect well.

   2. Check if test card identify the interface.

   3. Check 74HC245 with or without virtual welding short-circuit

   4. Signal input and output feet on 245 if virtual welding or short circuit to other lines.

B. A line or lines are not bright.

1. Check 138 to 4953 circuit if have open circuit, virtual welding or short circuit.

2. Find control pin of this line, 

C. There is a single point or multi-point (irregular) is not bright. 

1. To find module corresponding control foot measurement If happen short circuit with its line.

2. Replace the module or single lamp.To check whether connect with driver IC output.

D. With a single point or single highlighted, Or entire line highlighted, but not be controlled.

1. Check whether the line connect with the power or short circuit.

2. To test whether this link short circuit with positive pole.

3. Replace the driver IC.

E. Display chaos, but output signal is normal to next board.

1. Test 245 corresponding STB Latched output if connect IC Latch end, or signal is short circuit

to the other line.Other situation,display chaos, output is still not normal. There are  other ways to check it.

2. Testing the clock CLK latch and STB signal is short circuit.

3. Check If there is a input/output from 245 clock CLK.

4. Test the clock signal if short circuit to other line.

Notes:  Main testing the clock and the latch signal is OK.

F. Show lack of color.

1. Check whether color data of 245 have input and output.

2. Check color data signal if short circuit to other line.

3. Check color data signal’s concatenation data port if open circuit , short circuit or virtual welding



Porstar Electronics is one of the leading China p2mm indoor fixed led display manufacturers and suppliers, welcome to check p2mm indoor fixed led display price with us.
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