Repairing a switch lite

[wiitendo84]

Alright so I am repairing this switch lite but it powers on, sound comes on, I can feel the feedback when touching the screen but no display. What I noticed is on the left joystick, there are two small zip connectors for ribbon cables. The top one from what I can see goes to the power and volume up respectively. But nothing is plugged into the lower one. I grabbed an older model I had and there is a ribbon cable that goes to it. So I thought that when the kids dropped it, it came loose. I took the left board off but there's no ribbon cable. I looked it up, and I think it does something for the screen but I'm not for sure. Anyone fixed one that can give me an idea as to where it should be or if a newer switch lite doesn't use it anymore.

 

[digipimp75]

There should definitely be a ribbon cable there as that's what sends the video signal and button inputs from the left joycon board (daughterboard) to the mainboard. If it's missing, I don't know it could've previously worked. Did anybody take it apart before you?

FYI those cables are easy to replace though. They sell them on AliExpress and Amazon

 

[wiitendo84]

What was told to me by their grandmother, they dropped it and it stopped working.

Edit:
It's not the daughter to motherboard cable at the bottom. Let me add a pic.

So the bottom one of these is the one that is missing. I know the top goes to the power and volume buttons but that specific one below it is the one I can't find even after undoing the daughter board thinking it fell below it. The clip is fine and opens and closes like it should. I'm guessing that is connected to the display and covers the backlight to the screen.

 

[digipimp75]

There should definitely be a ribbon cable there as that's what sends the video signal to the lcd. If it's completely missing, then there's no

What was told to me by their grandmother, they dropped it and it stopped working.

Edit:
It's not the daughter to motherboard cable at the bottom. Let me add a pic.

So the bottom one of these is the one that is missing. I know the top goes to the power and volume buttons but that specific one below it is the one I can't find even after undoing the daughter board thinking it fell below it. The clip is fine and opens and closes like it should. I'm guessing that is connected to the display and covers the backlight to the screen.

Ahh ok I misunderstood. Yeah that bottom cable is the backlight. When you turn the system on, shine a flashlight onto the screen and you can probably see a faint image of the Switch home screen.

Hmm, so if you took out the daughterboard and don't see the end of that cable, there's a chance it could've gotten torn off but that's unlikely to happen simply by fall damage. The only way to be sure is to take the mainboard and midframe out so you can get to the lcd assembly where the backlight cable is attached. If that cable has broken off then it would require replacing the whole lcd and digitizer which is kind of a pain.

EDIT: If the cable got ripped, the end of it should've still been attached to the connector or the broken piece would've been loose in the system when you opened it up. This is very strange.

 

[wiitendo84]

There should definitely be a ribbon cable there as that's what sends the video signal to the lcd. If it's completely missing, then there's no


Ahh ok I misunderstood. Yeah that bottom cable is the backlight. When you turn the system on, shine a flashlight onto the screen and you can probably see a faint image of the Switch home screen.

Hmm, so if you took out the daughterboard and don't see the end of that cable, there's a chance it could've gotten torn off but that's unlikely to happen simply by fall damage. The only way to be sure is to take the mainboard and midframe out so you can get to the lcd assembly where the backlight cable is attached. If that cable has broken off then it would require replacing the whole lcd and digitizer which is kind of a pain.

EDIT: If the cable got ripped, the end of it should've still been attached to the connector or the broken piece would've been loose in the system when you opened it up. This is very strange.

Yeah that's why I'm concerned. It was the first thing I noticed and was like that's not right. But it didn't look like it was opened. But heck, I don't know. I've got an extra old lite that stopped charging. Since it's the same color, I may just switch out the internals and just do it that way. The ribbons on that look the same and honestly, she just wants it back to working condition for them. Think I'll just do that.