Im new to this forum and repairing switches.
I´ve done 2 sucessfull repairs on V1 and now I´m encoutering some readings I can´t really put in place.
General. Switch is not powering on no reaction on LCD.
It´s loading at 0,4 A but not in fast charge.
When i tell directions i will do it from the bottom up (USB facing down.)
Opening it op i found some signs of liquid damage but not all over the place just at certain spots with no trace where they came from.
- at theLCD connector. The contacts of the cable seem corrodet burned in the middle part and parts of the right site. Also some coloring on the fixation bracket of the connector. Pins seem to be fine.
- A spot was found on the heat shield of the Wlan/BT Chip
Checking the M92T36 the lower right and left caps where shortened but at around 100Ohm.
Now i was planing to replace it but checked the others on the board also.
Here is what i encountered:
1: The big Cap right left of the LCD connector is shortened.
2. All Caps below the Tegra around the MAX77 are shortened
3. 90% of the Caps on the undersite of the board are shortened or show readings of around 100Ohm. (I can make a list if this would be necessary)
I currently assume that this board is a total and it ends up as a donor .
But i just wanted to make sure if perhaps somebody has encountered a similar one and give me some advice what i can also check.
Thanks for your support and cheers to the Youtube Vids on the TronicsFix. I was able to get a good ground knowledge thx to them.
(Yhea no native english speaker i gift every spelling error to the one who finds it first)
Hoping for some good input.
PS is there a discord where some of you meet up to talk about things like this?