How to repair led module with out PCB pad

[@The4disco]

Congratulations, best lesson and very professional.

[@OldSkoolF]

Excellent video..

[@samzhou8510]

Thank you!

[@shamsalmadinah9099]

when i am trying to fix with the Pad Paper, the issue i am facing while testing is that the entire row line light up the same time and when i choose vertical line testing, the entire column line light up while testing, please help

[@hugocampos1743]

Hello! I would like to know what is the ideal temperature of the hot air station for rework?

[@samzhou8510]

280-320

[@SeniorDPink]

​@@samzhou8510sir i tried the 280 to 320 temperature but it burns the led.. any suggestion?

[@SLferoz]

Hello I am interesting to get one of this pad papers and lamps for led module 3.99

[@DvjRob]

Can You change the Video Card On Any LED Panel or not

[@thebake77]

Where can I find the "mask" or "mesh" or "shader" to order replacements for damaged panels? P5. Thanks!

[@samzhou8510]

Usually the mask is easier to find, but the problem is that if you only replace a small part of the mask, there will be a difference in the color of the mask, which will cause a square to be displayed in the case of a black screen. It is recommended to replace the entire display.

[@roderingangelfloresrodrigu6190]

Thanks for showing us, where can I get mumps pad pcb for p3.9?

[@popolemawawu4868]

Hi, i need to learn it how Can i do please? To repair led module

[@fabioc2217]

Anyone have an idea on how to repair similar modules with 1.27mm leds? Pads are fine but the leds detach when they're hit , even a vertical hit so they seem to have a weak mechanical resistence of the soldering; there is a little space between the leds, so there are 10 leds in 130mm; we are filling an entire room with the damaged panels.

[@georgief5412]

Have you tried the normal method to repair surface mount? To attach LED that fell off first clean/reflow the solder pads: apply flux, then solder with soldering iron. When pads look good and have enough solder add more flux, then place LED on top and use heat gun until solder melts. It may help to shield nearby parts from heat using pieces of cardboard so you only heat one LED at a time. Also turn down the heat gun fan speed. The weak mechanical strength sounds like a manufacturing problem, possibly not enough heat. You could try heating all the LEDs with heat gun or reflow oven (make sure all plastic parts are removed).

[@samzhou8510]

Yes, when repairing a P1.2 pitch led module, you need to be very careful because the beads are too small (1010) and the distance between the beads is also very small. At this time, you can only use a hot air gun to disassemble and weld new beads, usually using the minimum air volume and a temperature of 280-300 degrees. Some air guns may not accurately indicate the temperature, so you need to try raising or lowering them. They can basically melt the remaining tin on the solder pad in 3-5 seconds. When replacing the beads, you also need to pay attention to the direction of the beads because they are too small and it is not easy to distinguish their direction, and sometimes you need to use a magnifying glass; When welding, first use a hot air gun to heat the empty solder pad for 3-5 seconds, then place the lamp beads on the solder pad with tweezers, and use a hot air gun to rotate around the lamp beads for 3-5 seconds. Then gently push the lamp beads with tweezers. If the lamp beads can rebound naturally, it indicates that the welding is correct. If they cannot rebound, it indicates that there is too little tin on the solder pad or the welding is not successful; This is my experience sharing; Thank you for watching my video;

[@sumitkumar-ob7db]

Where are you from.

[@multiverse6968]

Can we use this process when four legs are broken . I can’t make it glow using paper when 4 legs are broken and connection is good Please answer

[@samzhou8510]

Of course you can, but if all 4 pins are disconnected, you need a 2*2 pad paper, because usually the power pins of the lamp beads are horizontal and the signal pins are vertical, so when you use 2*2 The pad paper can conduct the signal and power to the damaged position, allowing the lamp bead to display normally;

[@multiverse6968]

@@samzhou8510 thanks

[@sheikhsohel7031]

good mornig sir veri hepl ful all video you module reperi im at job is led module & led screen thanks you so munch 🙏🙏🙏🙏🙏

[@rahulsamuel6787]

Where can I buy the PCB pads for PL2.5mm

[@samzhou8510]

china market

[@redriot884]

what is the equipment call? the red and black one

[@samzhou8510]

multimeter

[@Nnothing11]

We need 600 cabinets of video wall for P4.8 ..pls reply

[@samzhou8510]

We have VN-480 product. 1/13 scan and 1/8, brightness 4500nit. ICN2153 IC are default deive IC .Which country are you from?

[@Sandybhaigaming90]

Please tell me How we buy the required accessories to repair P3.9 module

[@samzhou8510]

if possible . try to used Taobao . it's like amzon in USA in China.

[@myungchongpark3189]

I'm enjoying the video Can you tell me the address where I can get the pcb pad and the repair lead chip

[@samzhou8510]

We can supply to you. Need to know the pixel pitch. Lamps size.

[@myungchongpark3189]

smd 2121It's I'm trying to fix it at home Can I have a small amount of soda

[@myungchongpark3189]

The product size is p2.5 smd21211 We're going to repair it as an individual, not commercial. We're going to buy a small amount of pcb pad and lead. If you let me know the product page, I'll buy it

[@samzhou8510]

“ledtechhub.com/zh/collections/tools/products/p3-91-copper-foil-for-pcb-repairing” you can check this website. but the price is not correct.if you really want to buy. we can change the price and you can order onside. we will shipping it to you.@@myungchongpark3189

[@mdaslamknl]

Excellent From where we can buy the pads and leds Thanks

[@samzhou8510]

Screen factory can be supplied

[@padiscotheque3203]

Hi! Sam. Where can i get the Pad Paper, also where can i buy P4.81 Indor 52X52 Modules

[@samzhou8510]

ask for the factory of the sceen. pad paper the pixel pitch and lamps size should be same with the module.

[@juberpatel007]

How to get led bulb/strips p 3.91

[@samzhou8510]

you should have spare part when you order led screen

[@lan7871]

@@samzhou8510 what is your wechat mobile

[@kiranpixelsclarifications9733]

I need led bulbs how to buy sir

[@ranvirsingh6450]

Sir my panel is working good on rgb but when it comes to white light . Screen start flickering and after sometime some modules colour ic burnt out . What is reason

[@samzhou8510]

The power supply out power too small. Try to adjust brightness to 30% when connect signal cable. Then testing in white color.

[@ranvirsingh6450]

@@samzhou8510 sir still its burning ic . Again colour missing problem

[@samzhou8510]

@@ranvirsingh6450 show me video pls [e-mail]

[@maanwar2519]

How do we know which 3 is colour and 1 is power on the bulb?

[@samzhou8510]

The R G B signal with power are vertically crossed. Just test it on a multimeter

[@Chematus1]

Hi Sam I have a Dicolor A Series 2.9 screen Where can I buy PCB Pad Paper? Thanks in advance

[@samzhou8510]

ask for sales . after sales engineer have padpaper. also you can buy it from "taobao"

[@kiranpixelsclarifications9733]

How to buy led lamps ...

[@samzhou8510]

ask for which sell the screen to you the supplier

[@iquballedpixels5641]

Very nice video bro I am iqubal from India I have need pcb paper p3.9 p3.5 p2.9 p2.6 p2.5 p4.8

[@samzhou8510]

We have . But actually just for used. Not for sales. The shipping cost too higher

[@nasirenterprise6008]

nice

[@creativeeye9852]

I need paper pad

[@samzhou8510]

contact me in whatsapp.

[@creativeeye9852]

@@samzhou8510 can you help me out with WhatsApp Number

[@creativeeye9852]

@@samzhou8510 please do let me know number

[@samzhou8510]

@@creativeeye9852 [phone]

[@Sridharyt01]

how to buy pad paper

[@samzhou8510]

you can ask for sales of your screen. the fatory will be have the padpaper. also you can find it in "taobao"

[@olmakara4850]

hello brother

[@samzhou8510]

hello

[@waelsleem5256]

ممكن ترجمه مع الفيديو للغه العربية

[@djcarlosgtz]

Hello I am interesting to get one of this pad papers and lamps for led module 2.9

[@samzhou8510]

actually we do led screen. not the pad paper.and if you need 1 of this . i think the shipping cost will much high than the goods.