hi @@samzhou8510 thanks so much for the video, very good content. even if the content is in Chinese can you share we will translate. Thank you once again
ofcourse . because it have types text on side. like MBI5264, this is driver. and also they have Special arrangement. and the control IC normal is 74HC245. and each module have few of that.
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.
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).
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;
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;
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
“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
Yoww brother how are you I have trouble opening the back cover of module pl 2.9 outdoor absen i want to replace red ic i already remove screws but sadly i try to use your method it didnt work hope you help me
it's outdoor or indoor module? actually indoor easy to open the cover. and outdoor is hard. because it have screw foro mask. and also havery screw for PCB with cover. and that screw you can not see clear. because it's under the waterproof glue.
Hola amigo tengo un problema con un panel, le cambie el ic quedo funcionando bien, lo guarde y cuando fui de nuevo a encenderlo no prende no da el tes. Me di cuenta que tiene algunos ic reventados volvi hacer la sustitucion pero igual no enciende
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
Great job bro !! beside MX40 I wonder what other equipments you use ? for Render machine and its camera specification uses for XR filming..I want to build one.
Hi Sam, great video, I have question, do you repair all brands led modules or only your company products. I have couple of p3 indoor modules for repair. If you do I wish to send you the modules and you can repair and send it back. Whatever charges is there will pay you.
