android iptv box

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here's a long shot but has anybody tried to repair an android iptv box? Mine fails to power up. There is no fuse, power seems to be straight into an smd cap. I measure a short through the first few caps after the dc input socket and would like to change them but being surface mount they have no markings to indicate their value. The box is branded MII box model A9. What I would like is a circuit diagram but I doubt they exist or info if someone else has been down the same path. Any help appreciated.

[denimdragon]

Can you take a pic of the PCB area and post it? It might helpful if we can see what you see 

[Shock]

Are you sure they are caps and the short is across the caps?

What kind of short is it and how did you find it? Did you notice device sinking too much current or do a diode test in both directions across the supply rails, or do a resistance test in both directions? You should take (and show) measurements if you are unsure.

If they are caps and causing a dead short across the supply rails that shouldn't prevent you from confirming the device is working after the offender is removed. If they are just used for a bit of supply filtering the device will operate without them especially when testing with your own bench supply (current limited).

As for working out what capacitors, you can deduce it by the surrounding components such as two capacitors in parallel can be the same values. A capacitor next to a regulator could be a nominal value shown in the regulators datasheet or found in comparable circuits.

[Shonky]

Bot/AI post reported

For OP there's pretty much no chance you'll get a schematic. Post a pic and tell us you can measure. I'd more likely expect corrupted/bad firmware

[Halcyon]

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Deleted/banned. Thanks for the report.