Sony AC-V30 AC adaptor - water ingress

[qu1j0t3]

 :-\Hi,

Today in cheap but time-wasting purchases: A Sony Handycam TR5 and AC adaptor AC-V30.

Camera didn't work. Discovered that the V30 is supposed to be putting out 7.5V but was actually 40V. After opening it, found it that there was water inside (!!). There is no visible damage to components and it didn't blow the fuse, but it appears that it will permanently be 40V now. The controller IC is on a perpendicular riser board and may not be damaged, but anything could have done wrong on the high voltage side… though I'd think if the transformer had shorted, the fuse might have blown. Anyone ever repaired one of these?

The camera is another matter… I've ordered the service manual and I don't relish working on miniature electronics.

[akimpowerscr]

The first and best advice I could give you is to simply buy another charger.
We can find it very cheaply, more or less 15 bucks ....

But if you really want to fix it, the first thing to do is rinse it in distilled or deionized water, dry it very well.

Watch out for water that remains below the components.

It would then be necessary to make an insulation measurement between primary and secondary circuits with a 500V megger.

If the insulation resistance is greater than 10 Mohms, you can test it by supplying it with 230Vac.

Beware of the dangers of electrocution, if you are not qualified, never supply the charger with its case open.

Measure the no load output voltage ..... if it is not 7.5V, it is better to abandon this repair, it is not worth it.