rsix08 Posted January 2, 2022 Share Posted January 2, 2022 Hi I am in the middle of the MCWill Screen install for my GameGear and getting a screen issue. Seems like high contrast .I have checked voltage is under 5V And tried disconnecting csync cable My game gear had cap kit done and was working before the upgrade. v3.1 on 1 asic GG using the guide on console 5 https://console5.com/techwiki/images/0/0a/Quick_Guide_1-ASIC_SEGA-GG_REV3_1.pdf Solder 1 wire from BACKLIGHT (BL left) of the GG mod to PIN1 of the thumbwheel and 1 wire from BACKLIGHT (BL right) of the GG mod to PIN 2 of the thumbwheel. I posted on Reddit and users suggested connecting the backlight to pin 1 and 3 of the thumb wheel but I haven't tried this yet. Wanted to see what recommendations can be made to troubleshoot on this forum and if there are any other users who experienced this issue. Thank you! Quote Link to comment Share on other sites More sharing options...
McWill Posted January 4, 2022 Share Posted January 4, 2022 It seems the color palette is not correct. Perhaps there's a short circuit at the old LCD ribbon pads D0-D3 or some of them are mixed up. Please check these wires again. Quote Link to comment Share on other sites More sharing options...
rsix08 Posted January 5, 2022 Author Share Posted January 5, 2022 (edited) I double checked my connections as your suggestion and D3 (PIN57) was incorrect (Installed on PIN 58). I corrected this and the screen is displaying correctly. Thank you for reply! P.S. Best screen for GG! Edited January 5, 2022 by rsix08 Quote Link to comment Share on other sites More sharing options...
rsix08 Posted January 8, 2022 Author Share Posted January 8, 2022 On 1/4/2022 at 5:42 PM, McWill said: It seems the color palette is not correct. Perhaps there's a short circuit at the old LCD ribbon pads D0-D3 or some of them are mixed up. Please check these wires again. Hi, is there another connection point for PIN 9? When I put together the GG the screen worked but got glitchy and eventually scrambled. I took it apart and re-soldered PIN 9 but I believe there is an issue here since the PIN 9 connector broke off and I had to solder it to the tiny hole to get it to work, so I think it would help me if I could solder pin9 to somewhere else. Thanks again. Quote Link to comment Share on other sites More sharing options...
+-^CrossBow^- Posted January 8, 2022 Share Posted January 8, 2022 55 minutes ago, rsix08 said: Hi, is there another connection point for PIN 9? When I put together the GG the screen worked but got glitchy and eventually scrambled. I took it apart and re-soldered PIN 9 but I believe there is an issue here since the PIN 9 connector broke off and I had to solder it to the tiny hole to get it to work, so I think it would help me if I could solder pin9 to somewhere else. Thanks again. Yes there is... I believe pin 9 is the CL2 connection point and there is an alternate connection for the single ASIC boards that can be found where indicated in the picture below. But you should use a DMM in continuity mode to verify this. 1 Quote Link to comment Share on other sites More sharing options...
rsix08 Posted January 8, 2022 Author Share Posted January 8, 2022 13 hours ago, -^CrossBow^- said: Yes there is... I believe pin 9 is the CL2 connection point and there is an alternate connection for the single ASIC boards that can be found where indicated in the picture below. But you should use a DMM in continuity mode to verify this. Thank you this is helpful. I re-assembled the GG but will reference this if I need to re-open it and correct it again. Quote Link to comment Share on other sites More sharing options...
Like us on Facebook
Follow us on Twitter
AtariAge on Instagram
Watch us on YouTube
Chat on Discord
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.