Mv2-01 repair, as blue as hell

Publié le par TheFixerBuro

Hello Guys,

Today I will repair a mv2 left several years in a garage far away in Italy. Looking at the blue shiny oxyde, it must have been near the sea :)

 

Battery Leak, as usual...
Battery Leak, as usual...

Battery Leak, as usual...

As usual on mv2F, the battery tends to leak after a while, releasing it's blue oxyde that eats copper made connections on the Pcb. 

The cleaning process is using white vinegar on the board (cancelling the oxydation effect) and then performing a cleanup using isoprop alcohol.

 

 

Sounds clean !

Sounds clean !

Let's test the board after this cleaning process.... 

Well...

Well...

Game graphics are actually corrupted. The leak probably did it's job already near the zmc chip, responsible for graphic corruption. Let's uncover some traces that where below the blue oxyde and look for continuity.

Sounds great but... It's not !
Sounds great but... It's not !

Sounds great but... It's not !

The red part indicates traces that are actually cut. (4 of them...). I had to fix that using 0.2 mm copper wire (yes, that is very small, like a hair).

Decreased visual acuity in the process !

Decreased visual acuity in the process !

Fixed !

Fixed !

This made it ! The board is back to life :)

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