Dann Posted April 16, 2016 Share Posted April 16, 2016 Hi Dann, but between 1K or 2.2K there should be a difference ? in bright / speed or something else ? or is exactly the same ? If you have to choose now a value, would you choose 1K or 2.2K ? Thanks! Ive only used 1K on all mine but i would think there would be no difference between 1K and 2.2k.. Before and after pics.. Link to comment Share on other sites More sharing options...
Dann Posted April 16, 2016 Share Posted April 16, 2016 Before and after pics.. Link to comment Share on other sites More sharing options...
marioc Posted May 5, 2016 Share Posted May 5, 2016 I have contacted one of the panel suppliers in China LinsLed and sent them a photo graph of the colour bleed. The one below They responded actually knowing what the problem was. This is their response. This is the RCG problem. You can set it again by the software,and change the parameters. Attached please find some documents of RCG Parameter Settings They sent me some configuration files for their controller card. *.RCG files specific to their card Also on their web site http://www.sbright.net.cn/english/techinfo.asp?id=67 they have this comment about configurations. Row Blanking time: value set between 10-200000. It is used to fix brightness leak. Set 3000 for double-color display; 200 for full color display. (Real pixel and virtual pixel). If high value is set for Row Blanking time, and with no effects, please check the connection of receiving card and led display, especially whether OE is reversed connected (settings for Led manufactory) So they know about it and call it Brightness leak. Maybe Lucky knows about these parameters or understands better than me but perhaps it is software fixable. Hope this makes some sense to someone. Link to comment Share on other sites More sharing options...
Content Provider lucky1 Posted May 5, 2016 Author Content Provider Share Posted May 5, 2016 I have contacted one of the panel suppliers in China LinsLed and sent them a photo graph of the colour bleed. The one below IMG_2400.JPG They responded actually knowing what the problem was. This is their response. This is the RCG problem. You can set it again by the software,and change the parameters. Attached please find some documents of RCG Parameter Settings They sent me some configuration files for their controller card. *.RCG files specific to their card Also on their web site http://www.sbright.net.cn/english/techinfo.asp?id=67 they have this comment about configurations. Row Blanking time: value set between 10-200000. It is used to fix brightness leak. Set 3000 for double-color display; 200 for full color display. (Real pixel and virtual pixel). If high value is set for Row Blanking time, and with no effects, please check the connection of receiving card and led display, especially whether OE is reversed connected (settings for Led manufactory) So they know about it and call it Brightness leak. Maybe Lucky knows about these parameters or understands better than me but perhaps it is software fixable. Hope this makes some sense to someone. This info is not usable without knowledge how the controller is clocking the panels and how the settings affect the signaling/timing. Btw they clock the panels with 600hz which is not possible with our controller. Link to comment Share on other sites More sharing options...
psmmacker Posted August 18, 2016 Share Posted August 18, 2016 Hay people could we add these resisters between the stm32 controller and the rgb panels Thanks Paul Link to comment Share on other sites More sharing options...
psmmacker Posted August 18, 2016 Share Posted August 18, 2016 Or a extra clock chip for timing Link to comment Share on other sites More sharing options...
psmmacker Posted August 18, 2016 Share Posted August 18, 2016 This is a filter issue as i did a experiment if you the positive and neg off the panels and keep the hub75 plug in you got a slight red signal from the stm 32 discovery Link to comment Share on other sites More sharing options...
psmmacker Posted August 18, 2016 Share Posted August 18, 2016 The p3 p 2.5 to mod with transister is ok but the p5 you can remove the frame to get to the chips by removing 25 screws from the frount Link to comment Share on other sites More sharing options...
psmmacker Posted August 18, 2016 Share Posted August 18, 2016 You probley need 15 transistors on the hub cable and may be same caps Link to comment Share on other sites More sharing options...
psmmacker Posted August 18, 2016 Share Posted August 18, 2016 Would ceramic 2.2k transisters work on the hub 75 cable? Link to comment Share on other sites More sharing options...
psmmacker Posted August 18, 2016 Share Posted August 18, 2016 Sorry im a noob but. i did a modifi commodore 64 tape deck to dump real tapes to a pc tap file on commodore 64 lol and load them on the original c64 real time would these resisters work as well http://m.ebay.co.uk/itm/50-x-2-2K-Ohm-0-25w-Carbon-Resistors-1-4w-Resistor-2K2-/230517200151?hash=item35abe55517%3Ag%3AuRUAAOxyXHpSQzU7&_trkparms=pageci%253A97def89f-6639-11e6-9c1f-74dbd1800198%257Cparentrq%253Aa4084db81560a2af57787d13ffff8bb7%257Ciid%253A1 Link to comment Share on other sites More sharing options...
psmmacker Posted August 18, 2016 Share Posted August 18, 2016 Ya lucky1 the clock runs at 168 mhz Link to comment Share on other sites More sharing options...
psmmacker Posted August 18, 2016 Share Posted August 18, 2016 Hi been testing i get power from the stm32 discovery on the 3rd panel with out power,i even put white leds on the output of 2nd panel and their power going from the stm32 discovery board ? On the hub 75 it self i think sheild is wired wrong somewhere Link to comment Share on other sites More sharing options...
psmmacker Posted August 18, 2016 Share Posted August 18, 2016 Ps yes im powering my panels from usb port and it works 100% Link to comment Share on other sites More sharing options...
gech Posted August 18, 2016 Share Posted August 18, 2016 Do you know you can edit your posts... 10 posts is maybe too much Link to comment Share on other sites More sharing options...
BlackZero Posted August 18, 2016 Share Posted August 18, 2016 Hello, how can I display these ppm images on the DMD? Thanks Link to comment Share on other sites More sharing options...
Rappelbox Posted August 19, 2016 Share Posted August 19, 2016 Open a command line window and and type Pin2dmd.exe /i yourfile.ppm Link to comment Share on other sites More sharing options...
psmmacker Posted August 19, 2016 Share Posted August 19, 2016 Ps na you need 13 resister as 3 pins on hub75 are gnd Link to comment Share on other sites More sharing options...
psmmacker Posted August 20, 2016 Share Posted August 20, 2016 And try this example only use two not four positives Link to comment Share on other sites More sharing options...
psmmacker Posted August 20, 2016 Share Posted August 20, 2016 Here a better pic on earthing the chips p4 marked up Link to comment Share on other sites More sharing options...
psmmacker Posted August 21, 2016 Share Posted August 21, 2016 Remove some screws from frout of panels and that fixed the colour bleed seem they are shorting them out there are 10 screw across and 5 down p5 fixes topper Link to comment Share on other sites More sharing options...
Content Provider CarnyPriest Posted August 21, 2016 Content Provider Share Posted August 21, 2016 Well, that sounds like a lot easier fix than doing a bunch of soldering. Sent from my iPhone using Tapatalk Link to comment Share on other sites More sharing options...
psmmacker Posted August 21, 2016 Share Posted August 21, 2016 Ya thats on p5 only but i want to test my p3 and 2.5 now Link to comment Share on other sites More sharing options...
psmmacker Posted August 21, 2016 Share Posted August 21, 2016 Before this what my p5 was doing Link to comment Share on other sites More sharing options...
psmmacker Posted August 21, 2016 Share Posted August 21, 2016 I think adding a earth panel screw on p 2 p3 ect as so far p5 has them screw at the frount Link to comment Share on other sites More sharing options...
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