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Thanks! And what is their use? ...and how can you identify them when nothing is printed on them(or it's gone) and it's impossible to get the schematic?SMD ceramic capacitors.
John
and how can you identify them ?
You say AMP I guess you meant the "guitar"...it's a guitar. The company would fix it for...$60. That's the price I did pay for the guitar and not knowing what did cause the problem, I don't want to pay that price just to see it will stop working again after only 5 months. I know other peoples have had the same problem and at least in one case, it was without a doubt for the same reason...the motherboard was fried.The real question is what caused the capacitor to heat up? That is, it could have been acting as a fuse for a much bigger problem somewhere else.
I suspect there the option of taking the amp to a repair facility is not available. That leaves the options of fixing it yourself or buying a new one. That is, worse case, you buy a new one.
What I would do is clean the area and see if the component was attached to the large copper area (possibly a ground plane) or to some PCB track that is not visible.
I would then remove the component and test it. If you have a capacitance meter, use that. Otherwise, just use a DVM to see if it is shorted. Since we aren't absolutely sure what the components labeled with E's are, I would also remove another component labeled with an "E" and test it to see if it is a capacitor.
Assuming you verify that E-components are capacitors, if the bad part is shorted and was connected to the ground plane, I would briefly see what happens, if it is not in the circuit. If the bad part is open, then it is a little hard to know the next step. I would probably put a 0.1 uF (25V or greater) capacitor in its place and see what happens.
If the bad part is in a track, I would do as in the paragraph above, but would not expect the amplifier to work without something in its place; whereas, if the capacitor is to a ground plane, the amp may work without it.
John
Just looking t the top picture, it looks like a component just to the right of your yellow circle has been vapourised.
R211 looks like toast and E16.. dunno.
Can you take a closeup image of just the red circled area using diffused light (NO FLASH!). Take it outside during the day on an overcast day or under shade.
You need to have an image that lacks specular reflections.
It's a MIDI You Rock guitar. The six connectors go to the strings sensor. The other connectors...go and come from different other items like 2 smaller board and such.you mean that whole board is inside a guitar .... what sort of guitar is it ???
you should have compressed the images a bit, after 10 minutes of waiting the pics still hadnt loaded
so what are the 6 connections on the left side of the board ?
what are all the other connectors for ??
Dave
I think R211 is O.K. It just got splashed by some junk from E16.R211 looks like toast and E16.. dunno.
Can you take a closeup image of just the red circled area using diffused light (NO FLASH!). Take it outside during the day on an overcast day or under shade.
You need to have an image that lacks specular reflections.