Question wii trimming no video

[eddycalaca]

Hello everyone, I hope you can advise me on what to do next.
This is my first project with a Wii but I haven't been able to get it to turn on yet.

These are the steps I have followed.

Wii 4 layers rvl 40.
Installation of rvloader, ok.
Checking operation without wifi card, ok.
Operation of games and controls, ok.
The cpu and gpu were protected with silicone to prevent metal fragments from entering the lower part of them (I did not have tape available).

The edges were sanded to 2000 grit.
Review of layers in good condition.
Checking resistance between voltage and GND inputs gives good results.

Installation and wiring of u10, ok.
3.3v are generated at the output.

Power source, 8.4v 3a battery pack
Installation of custom mini560 regulators, stable 1v 1.15v and 3.3v voltages with 220µf 25v capacitors.

GPU and cpu heat up gradually.

Video output with and without condenser, without image on TV or screen driver.
Test of wiitohdmi adapters with composite video output enabled, without results.

Again, Review of layers in good condition.
Wiring with a thicker gauge or with more cables to gnd, without results.
Installation of bluetooth module, without results.

Exchange u10 for u9, no changes.

Cleaning with IPA generated a change in the values of the previously measured resistances, here is the graph.
Tested with original Wii 12v 3.7A power supply, no results.

In the images you can see an area with exposed copper, but I have already verified that it is not making contact with the lower layers.
Cleaning with thinner, no results

There is a small part of the circuit near the video capacitors that disappeared due to excess sanding, but from what I see it was just gnd.

The regulator that can be seen in the images that has a coil in poor condition has already been changed for a new one and its voltage has been verified.

I have not found an image on the internet with all the layers to be able to definitively determine it.

Apologies in advance if there is something that is not understood, I am using Google Translate.
Thank you so much.

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[Stitches]

Your U10 wire might be shorting on the via next to it, and you have soldered your composite wire to the wrong place. With the big capacitor removed, that side of the trace is disconnected. You'll need to solder the composite wire to the AVE line on the other side of the board

 

[eddycalaca]

Thanks for your prompt response.

the u10 cable was relocated at both ends to avoid shorts with other nearby points.

The video cable was soldered directly to the AVE output, without results.

I don't know if it's normal for the GPU to heat up faster than the CPU, I think it's already dead.

 

[eddycalaca]

hello everyone.

After getting another 4 layer wii, trimming it and checking the resistors I am about to test the regulators, I would like to know if these values are appropriate or do they need to be adjusted more.
3.3v = 3.35v
1v = 1.08v
1.15v = 1.2v

the regulators are mini560

thank you

 

[CIP060]

1V 75K
1.15 V 30K
3.3 V 2K
5V 360 OHM

 

[CIP060]

Sorry, I didn't understand the question You wanted to know if the voltages were okay You have already changed the regulators and the resistors as I can see from the photos I'm also making the modification to the mini 560 regulators I think the voltages are fine, I think they're within 5% of the gap One question, are the capacitors you put mandatory for the quality of the voltage or can I do without them? Since I've had capacitors like this I'll put them in too Thank you
My 5V regulators plugging them in put out 6.25V
I would say not very well As soon as the 0603 resistors arrive I'll try to see if I can resolve the voltage correctly

 

[eddycalaca]

Perdón no entendí la pregunta querías saber si los voltajes estaban bien ya cambiaste los reguladores y las resistencias como puedo ver en las fotos también estoy haciendo la modificación a los reguladores mini 560 creo que los voltajes están bien creo que están dentro del 5% del gap una pregunta los capacitores que pones son obligatorios por la calidad del voltaje o puedo prescindir de ellos como he tenido capacitores así los pondré también gracias
Mis reguladores de 5 V al conectarlos generan 6,25 V.
Yo diría que no muy bien En cuanto me lleguen las resistencias 0603 intentaré ver si logro resolver correctamente el voltaje
[/CITA]

Hola soy de Colombia y ese fue el video que use para buscar los reguladores. Si te fijas en los comentarios ya había puesto las resistencias necesarias para los voltajes del Wii, aunque después tuve que modificarlas un poco. En el video solo se ven. 1 capacitor muy grande en tu Wii pero no se que capacidad sea, estoy usando uno de 220µf 24v porque era el que tenia a la mano y te recomiendo que le pongas al menos uno de 100µf 16v que es lo que recomiendan en los foros. Mientras mayor sea la capacitancia menos ruido hay a la salida. Yo antes no los usaba y creo que esa fue la razón por la que mi anterior Wii murió.

 

[eddycalaca]

Rsisten

 

[eddycalaca]

It's working
load voltages
3.3v = 3.337v
1.15v =1.159v
1.0v = 1.046v

Vga and Av working