My speakers recently stopped working and after looking at the board realized a part was burnt up, and quickly replaced it. They still don't work so I'm trying to identify the parts around the burnt up part and can't find any answers.
Hi, what was the part you found out to be burned and replaced, a photo of the board might help.
Usually when something burns there's a big chance other components burn as well, maybe without " looking burned" .
Usually when something burns there's a big chance other components burn as well, maybe without " looking burned" .
that will be r5. its a 7 gijawatt flux rectifier.
If that doesn't help.
then fill us in on the secret.
WHAT is the speaker - make and model.
WHAT part have you replaced.
And just for good measure, how about sharing some pictures so we can see what you can see.
dam it's like pulling hens teeth isn't it.........
If that doesn't help.
then fill us in on the secret.
WHAT is the speaker - make and model.
WHAT part have you replaced.
And just for good measure, how about sharing some pictures so we can see what you can see.
dam it's like pulling hens teeth isn't it.........
@MegamanTSK Seems like you replaced the " 78M12G " it's a 12v regulator, most likely something happend that it burned,, and swaping only it and the components that burned, might not fix it and burn again , C123 , the first circle is a filtering cap after the regulator, in the datasheet that is 0.1uF ( 100nF ) , and as for L11 in the second circle, is an inductor , most likely for filtering too, have you measured those two components, are they burned as well? , desolder end check them, also check the pin after the inductor to ground if it measures short or not. also check.
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@xXBrunoXx I haven't checked the other parts yet, and I hate to keep asking such broad questions, but how would I go about checking these parts??
@MegamanTSK A simple multimeter will do, on resistance, ohm, ( omega symbol) on the 200 scale check the inductor if it does not show anything its open circuit, you cant check the inductance with the multimeter but atleast if its open circuit or not, the capacitor check o the 200 scale if its shorted , if it shows nothing, bring up the scale to 20k, 200k, even 20M or whatever it is, it should show a number thst increases as you measure it.
Also check for short circuit as I posted the picture a while ago, one probe ( wire from the multimeter ) to one point and the second probe to the other one. I colored it cyan, red, yellow as I remember, probe red red, cyanand so.
Also check for short circuit as I posted the picture a while ago, one probe ( wire from the multimeter ) to one point and the second probe to the other one. I colored it cyan, red, yellow as I remember, probe red red, cyanand so.