Issues With Screen

[Valadone]

And here the disaster ...

P_20170212_203538.jpg (784.54 KiB) Viewed 10634 times

EDIT : today i received more tools to solder and wire.

So now i made this but the screen does not working anymore

P_20170213_200555.jpg (816.01 KiB) Viewed 10623 times

[Valadone]

Noone can help me ? :/

[tomsupergreen]

I do not understand what is your problem.

As I understand, you removed the chip and destroy the pin number 2, so now you can't solder it.

You followed the wire on the PCB to find where to solder it (last picture) but it doesn't work ?

On your picture, are the black wire pin is connected to the pin on the left ? This pins (2 from the right) are the AV1 ans AV2. They shouldnt be connected to the ground.

[Valadone]

I do not understand what is your problem.

As I understand, you removed the chip and destroy the pin number 2, so now you can't solder it.

You followed the wire on the PCB to find where to solder it (last picture) but it doesn't work ?

On your picture, are the black wire pin is connected to the pin on the left ? This pins (2 from the right) are the AV1 ans AV2. They shouldnt be connected to the ground.

The screen does not turn on by plugging in like that. The problem is that I'm not sure where I have to solder the red wire and for the black wire I'm well on the GND of the chip.

And if my black wire is not well welded, where do I put it on the Rpi?

[tomsupergreen]

You know where to put the red wire but you broke it.

Are you sure the screen is well connected ? For this one (I have the same) the connector is larger than the band. Look the previous post of n.marek. Everything is shown.




- Remove all the wires.

- Clean the 4 pins (look the yellow circles, the GND and AV1 look like connected: they should not)

- check the solder guide here http://www.sudomod.com/forum/viewtopic.php?p=21465

- solder the black wire and red wire directly where the small red and white were connected

- make sure you connected everything correctly on you raspberry PI zero (check here http://www.sudomod.com/forum/viewtopic.php?f=22&t=958)

- make sure you are using the "POWER" micro usb on the raspberry PI.


If nothing works....that's because you broke it. You have to find another screen.

[Valadone]

I don't know why but the screen seems to be broken...

I bought a new one, a BW this time and i will ask you if i have some issues with the new screen.

Thanks for your help !

(I keep the screen and i will ask to people this saturday in a Fablab in Paris if someone know how i can repare this one)

[tomsupergreen]

Asking for help, and then when someone answer, you changed your mind ... (c'est un tout petit peu vexant).

Anyway, I have the same screen and it work fine, but you need to cut the button part.

[Valadone]

Asking for help, and then when someone answer, you changed your mind ... (c'est un tout petit peu vexant).

Anyway, I have the same screen and it work fine, but you need to cut the button part.

I know, I know ...

This evening i will post the photo of my welds and if you know why the screen don't want to be power on, i'll can use it on my other Rasp for an other project (indoor garden).

Thanks, i don't give up with this screen

EDIT:

I find another guy with the same screen but my chip is completely broken. I can't resolder it --'

The 2 photos.

P_20170217_192731.jpg (815.4 KiB) Viewed 10571 times

P_20170217_192651_Ink_LI.jpg (2.24 MiB) Viewed 10571 times

[Valadone]

Asking for help, and then when someone answer, you changed your mind ... (c'est un tout petit peu vexant).

Anyway, I have the same screen and it work fine, but you need to cut the button part.

The screen works pretty well when we add the right code ....

( PS : Ne jamais oublié de démarrer par ça une fois les soudures faite quand on aide quelqu'un, c'est bon à savoir )

Thanks for your help ! Now i have 2 screens, 1 with a glassy screen and the other one mat screen

[magthidon]

I'm still really confused as to what the right way to wire this is. I've rewatched wermy's videos and he connects the white and yellow wires on the same AV input spots (square and round holes for AV1). Did he do that wrong or am I missing something here?

Wiring both the white and yellow to the tv and ground pins is fine (if you solder white to ground it will do nothing). But there really is no reason to solder the white wire to anything. Just solder the yellow wire to the tv pin, black to the ground pin beside or your power strip, and red to your power strip. (Only solder the red wire to the pi to test the screen, it's better in the end to solder it to the power strip). Also, in your pics it looks like the solder on the red wire is quite close to the ground pin on the pi. Make sure they aren't bridged. (PP1 and PP6).

Also did you ever get the screen to stop smoking or did you need to replace it?

I got it to stop smoking, but I haven't worked on it in a while. I ended up getting a new screen, just in case. I'm in the process of working on this again.

Currently trying to connect the new screen to the pi, because I definitely want to get this to work, but I have to clean up my pi zero a little from excess solder.

I've been wondering if it is worth it to test the screen before connecting it to the power strip, as I really don't want to solder, resolder, then resolder the wire, due to my lack of experience. I still have nightmares.

So the black wire can either go to the ground beside the yellow wire or to the ground on the power?