As3rox Posted March 11, 2019 Share Posted March 11, 2019 Hi I hope someone maybe able to help, I purchased a lynx2 at a carboot and really don't think the chap really knew what he had, anyway it had a mcwill LCD in it works sort of but displays lines from top to bottom and colour is off, I'm thinking it was done without doing the caps I have completely unsoldered the screen and had to shorten the wires as I could install two screens with the amount that was used, it's still the same. Iv checked the power and it's a steady 4.8 volts i have tried a variety of games and all display these lines, also pressing the backlight button just makes the screen go blank and not change the screen mode, I have disabled vga and connected a wire from menu to gnd. If anyone has seen this before any information on how to fix it if I can would be greatly appreciated J Quote Link to comment Share on other sites More sharing options...
Igor Posted March 11, 2019 Share Posted March 11, 2019 It looks like it's not getting all of the colour channels, have you done a recap now or just shortened the wires and removed VGA? Quote Link to comment Share on other sites More sharing options...
As3rox Posted March 11, 2019 Author Share Posted March 11, 2019 Iv ordered recap kit hopefully I'll get it tomorrow, Iv have just shortened wires and removed vga. I have also ordered some ribbon cable as all these wires flopping around is doing my head in. Would bad caps stop some of the colour channels?? I have had a good look at it loos like it has been recapped but because of the state of all these wires I don't think I can trust if a: the right caps have been used and b: the solder joints are good. Quote Link to comment Share on other sites More sharing options...
Igor Posted March 11, 2019 Share Posted March 11, 2019 Not entirely sure but recap is worth doing. I've come across cold solder joints even in my own Lynx so that could be worth checking out. Quote Link to comment Share on other sites More sharing options...
As3rox Posted March 17, 2019 Author Share Posted March 17, 2019 Well finally got round to recapping and reinstalling mcwill with better wire, still no change have a lynx 1 but not keen on testing the mcwill screen in there. so I think im going to have to call it dead Quote Link to comment Share on other sites More sharing options...
Igor Posted March 17, 2019 Share Posted March 17, 2019 Have you tried to send a message to McWill on these forums? He will know what the issue is most likely. Quote Link to comment Share on other sites More sharing options...
As3rox Posted March 17, 2019 Author Share Posted March 17, 2019 lol I didn't want to bother him but will give it a shot thank you for you help and input Quote Link to comment Share on other sites More sharing options...
arkleyjoe Posted March 22, 2019 Share Posted March 22, 2019 I had a similar problem with my screen and it turned out I had attached D0 and D1 to the wrong pins on the Lynx. They were both 1 pin off where they should have been. I would check the wires and pins are all correct. Quote Link to comment Share on other sites More sharing options...
As3rox Posted March 22, 2019 Author Share Posted March 22, 2019 Thank you I will check later when I get home. Regards J Quote Link to comment Share on other sites More sharing options...
McWill Posted May 13, 2019 Share Posted May 13, 2019 lol I didn't want to bother him but will give it a shot thank you for you help and input No problem There's a short circuit at one of the pads of D0-D3 or they are mixed up. Please check again and it will work without issues Cheers, Marco 2 Quote Link to comment Share on other sites More sharing options...
As3rox Posted June 19, 2020 Author Share Posted June 19, 2020 Well finally after a year I got the time to take a second look at my lynx, I have checked D0 and D3 for shorts and there is none. Iv also swapped them to no avail. I do have another lynx 2 but a bit apprehensive of pulling it apart to see if it is the lynx or not. I also had a compatible lcd which I tried with the same result. All caps have been done again to. if anyone has any more ideas they would be greatly received as I hate having to relegate old consoles to my grave yard. regards j Quote Link to comment Share on other sites More sharing options...
Makara Posted June 19, 2020 Share Posted June 19, 2020 Would be useful if you could post some pictures of the wiring on both sides. Quote Link to comment Share on other sites More sharing options...
As3rox Posted June 19, 2020 Author Share Posted June 19, 2020 i decided to check over contact between solder pad on mcWill to the and the xlinks chips and there was no continuity past the via on D0, I have scraped back the mask on the trace by the xlinks chip, but still getting missing wrong data. Checked for shorts on all other connections and have none. So I’m completely stumped I’ll take some photos when I get back later but this lynx has now had complete cap replacement, and power update done. makara I’ll post some photos when I get back later. Quote Link to comment Share on other sites More sharing options...
As3rox Posted June 20, 2020 Author Share Posted June 20, 2020 Ok I think I’m done with this lynx, I’m suspecting Susie is gone, I will try a re-flow but most posts I see that people have done this don’t report any success. I really don’t want to take another lynx to the grave yard so will wait till I can get hold of a Susie chip and try and keep it alive, I have another lynx 2 that needs a new lcd so might as well try this mcWill in there and hopefully it’s not that that’s gone. Thanks to everyone that replied to my post and gave information. I will post back if mcWill lcd works in the other lynx or not so fingers crossed. regards j Quote Link to comment Share on other sites More sharing options...
Makara Posted June 20, 2020 Share Posted June 20, 2020 That's a shame - just a heads up, the screens are not transferable between the Lynx I and II. I believe the boards have a different firmware or something. Quote Link to comment Share on other sites More sharing options...
As3rox Posted June 21, 2020 Author Share Posted June 21, 2020 17 hours ago, Makara said: That's a shame - just a heads up, the screens are not transferable between the Lynx I and II. I believe the boards have a different firmware or something. Neah it going into an identical lynx but thanks for the heads up as I have a lynx 1 to, Iv found a Susie chip to so can try that to also if it’s not that won’t hurt to have a spare ? ill post my success or failure once I get it done. Quote Link to comment Share on other sites More sharing options...
As3rox Posted June 23, 2020 Author Share Posted June 23, 2020 Ok swapped mcWill to my second lynx, it’s even worse (check pics) I have also included the two places I had to repair the mcWill board. First I had to go from far left via and solder from there along the trace, second repair was pad 3, I had to turn the board over and go from the via along the trace toward the chip leg. Iv checked these repairs and current going where it should be. I have also added photos of where I soldered to the lynx mobo just for more eyes. Iv checked voltages and the stable at 4.8 volts. I don’t believe this has had a cap replacement or power zenor upgrade but I have them. Other than cap replacement etc I don’t know what else to try, I am going to put components from this second lynx onto the first and try the lcd from that in there too, hopefully mcWill will see this as he gave great input last year. But if anyone has any suggestions etc I’d be grateful. Also is there a possibility that this mcWill is for lynx 1?? Or is it for both. As my lynx 1 is 100% working with cap replacement. Oh sound is fine on both lynxs Thanks in advance jay Quote Link to comment Share on other sites More sharing options...
Makara Posted June 23, 2020 Share Posted June 23, 2020 5 hours ago, As3rox said: In the top picture here it looks like you have 2 wires going to that pin, what's the reason for that? Have you wired up TPR/ RES? I believe this varies depending on what chipset you have. Apart from that it looks like everything is on the correct pins. The wiring looks quite vulnerable to shorts with pieces sticking out, especially if they are being bent when put back inside the case. I would look to trim some of the ends and try to get them a little cleaner if possible. The garbled image suggests a data line is missing or shorted. Quote Link to comment Share on other sites More sharing options...
drbollox Posted June 23, 2020 Share Posted June 23, 2020 (edited) Hi Everyone and Anyone. My friend is installing my screen for me and has a portion of the screen unable to adjust brightness. Can anyone help?? His actual words were; "I hope so , not sure about unable to set brightness but the brightness is fu#$ed on part of the screen" "Infact the brighter side makes the duller side duller. It's all fuxky" " Question is, is it the LCD panel or is it the install" He's pretty good at console and arcade repair and retro fitting...I feel he feels a bit guilty he hasn't made it chooch. I feel bad for making him do it ☹️. Edited June 23, 2020 by drbollox Additional Quote Link to comment Share on other sites More sharing options...
Makara Posted June 23, 2020 Share Posted June 23, 2020 1 hour ago, drbollox said: That looks like a bad LCD panel to me, like the led backlight is only partially lighting up. Quote Link to comment Share on other sites More sharing options...
As3rox Posted June 23, 2020 Author Share Posted June 23, 2020 2 hours ago, Makara said: In the top picture here it looks like you have 2 wires going to that pin, what's the reason for that? Have you wired up TPR/ RES? I believe this varies depending on what chipset you have. Apart from that it looks like everything is on the correct pins. The wiring looks quite vulnerable to shorts with pieces sticking out, especially if they are being bent when put back inside the case. I would look to trim some of the ends and try to get them a little cleaner if possible. The garbled image suggests a data line is missing or shorted. I have checked for shorts and I have none, no I have not used tpr I did not think to try, I’m not shore what pic you are referring to but I can definitely say I don’t have 2 wires going anywhere, my mate is bringing me an oscilloscope so I can check data lines. Lol but I was a teenager the last time I used one so may take me a bit to get my head round it. I’m going to put these components that I took off on the other lynx today and see if the screen works in that. Other thing I thought of but don’t think mcWill would help with this one is that the firmware my be bad, it’s old to 2015 I also don’t know if older iteration used different solder points. thaks for answers though keeps me moving forward with it. jay Quote Link to comment Share on other sites More sharing options...
Makara Posted June 23, 2020 Share Posted June 23, 2020 This is the bit I was referring to, it looks like there are two wires. Quote Link to comment Share on other sites More sharing options...
As3rox Posted June 23, 2020 Author Share Posted June 23, 2020 2 hours ago, drbollox said: Hi Everyone and Anyone. My friend is installing my screen for me and has a portion of the screen unable to adjust brightness. Can anyone help?? His actual words were; "I hope so , not sure about unable to set brightness but the brightness is fu#$ed on part of the screen" "Infact the brighter side makes the duller side duller. It's all fuxky" " Question is, is it the LCD panel or is it the install" He's pretty good at console and arcade repair and retro fitting...I feel he feels a bit guilty he hasn't made it chooch. I feel bad for making him do it ☹️. If it’s a mcWill I got a new compatible lcd, I’ll try and hunt down where I got it from or when I’m in the lynx later get a model number for you, Quote Link to comment Share on other sites More sharing options...
As3rox Posted June 23, 2020 Author Share Posted June 23, 2020 7 minutes ago, Makara said: This is the bit I was referring to, it looks like there are two wires. Ah no lol wire on the left is cut off, just used it to solder along the trace, I have cut off the excess now. But trying tpr won’t hurt so I’m going to try that when I get back Quote Link to comment Share on other sites More sharing options...
As3rox Posted June 23, 2020 Author Share Posted June 23, 2020 9 hours ago, Makara said: That looks like a bad LCD panel to me, like the led backlight is only partially lighting up. This is the new lcd that is compatible with mcWill, LCD Screen Display Panel For 3.5" Satlink WS-6906 WS 6906 satellite Finder Meter Got mine on ebay https://www.ebay.co.uk/itm/222152460051 Quote Link to comment Share on other sites More sharing options...
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