Question trimmed wii weird RGB pattern on video and wont boot

N3croxs

.
Joined
May 13, 2026
Messages
12
Likes
5
Could you determine if my connections are correct? When I turn it on, it only produces a static pattern; I'm not sure if the issue might be the use of 20-gauge wires.
1787008802420.webp
photo_4906699947990781487_y.webp
photo_4906699947990781485_y.webp
photo_4909181279446699167_y.webp
 
This is a tough one. You appear to have done your due diligence - trim resistances look good, u10 is relocated, wire gauge is large enough (although it wouldn't hurt to shorten the exposed part of some of these a tad bit). The NAND traces don't look like they've been trimmed through or anything, and your board looks beautifully sanded. The only thing I can think of here is maybe the solder joint for the video mode isn't good? Or maybe the video mode on your monitor is wrong? You need to have ground connected to the video connector, and you appear to have done so. Maybe try double checking that you've got GND and Composite video going to the correct points on the connector with a multimeter? Maybe try removing the aluminum caps on the front of the board? This is probably the best advice I can give honestly.

I feel like the most likely thing here is that your monitor's video mode is wrong, or perhaps there's something going wrong with how your monitor is interpreting the video signal. Do you have a secondary monitor or CRT to test this with? It doesn't look like there's anything wrong with your trim, it's honestly a beautiful example!

And no, I doubt the wire gauge being 20awg is causing this, but if you have 22 or 24 gauge, it may be worth testing I guess? Or honestly, just make sure the video cable isn't near the wiring at all so there's no interference. You might also want to try reflowing u10. It is a little difficult to see your solder joints due to how blurry and zoomed out the picture is. Maybe make sure it's also not bridging the nearby via. That's about all I've got.

You've genuinely done some really good work so far. I'm surprised this isn't working! Good luck with this!
 
cy said:
This is a tough one. You appear to have done your due diligence - trim resistances look good, u10 is relocated, wire gauge is large enough (although it wouldn't hurt to shorten the exposed part of some of these a tad bit). The NAND traces don't look like they've been trimmed through or anything, and your board looks beautifully sanded. The only thing I can think of here is maybe the solder joint for the video mode isn't good? Or maybe the video mode on your monitor is wrong? You need to have ground connected to the video connector, and you appear to have done so. Maybe try double checking that you've got GND and Composite video going to the correct points on the connector with a multimeter? Maybe try removing the aluminum caps on the front of the board? This is probably the best advice I can give honestly.

I feel like the most likely thing here is that your monitor's video mode is wrong, or perhaps there's something going wrong with how your monitor is interpreting the video signal. Do you have a secondary monitor or CRT to test this with? It doesn't look like there's anything wrong with your trim, it's honestly a beautiful example!

And no, I doubt the wire gauge being 20awg is causing this, but if you have 22 or 24 gauge, it may be worth testing I guess? Or honestly, just make sure the video cable isn't near the wiring at all so there's no interference. You might also want to try reflowing u10. It is a little difficult to see your solder joints due to how blurry and zoomed out the picture is. Maybe make sure it's also not bridging the nearby via. That's about all I've got.

You've genuinely done some really good work so far. I'm surprised this isn't working! Good luck with this!
Click to expand...
I'll try to check all these indications! Thanks a lot
 
  • Like
Reactions: cy
I managed to solve the problem; by following all the instructions and measuring the values, I realized the issue was with U10. I was only getting 1.6V on pin 4, and after reading this https://bitbuilt.net/forums/threads/rough-draft-u10-troubleshooting-guide.2317/, I saw that the reading was incorrect, so I used the U10 from the PMS, and it works.
I'm not sure if you would recommend removing U10 from the board entirely.
photo_4911433079260384467_y.webp
 
U10 strikes again! I knew it had to be U10! Nice work dude! Good to see this resolved!
 
You must log in or register to reply here.

Similar threads

Nex
Solved Trimmed Wii weird RGB pattern on video and wont boot
Replies
7
Views
425
Stitches
Stitches
Back
Top