The closest match I can find for A75 is A7s, which is a BAV99 (dual serial diode BAW92).
Somehow I don't think this is it. Then again, I don't know the circuit configuration for the power input side of a laptop!
Hi all, I have a small problem with a laptop its getting no power to the mother board, now i think i have found the problem, just behind the power plug connector on the motherboard i found a burnt out transistor (i think its a transistor) now it looks just like the transistor that has caused the no power to lnb on the DM500, The only markings on the chip is A7S, and i would like to try and find one so i can try and replace it.
I have added a photo but its pretty bad as i only could use my phone.
Last edited by tagg; 05-03-08 at 10:29 PM. Reason: bad eye sight
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The closest match I can find for A75 is A7s, which is a BAV99 (dual serial diode BAW92).
Somehow I don't think this is it. Then again, I don't know the circuit configuration for the power input side of a laptop!
Could it maybe be A7S? If so its a BAW92 - "Matched Configuration Diode - Two Diodes,no common pins,IR max 5uA at VR 75V."
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What model laptop is it mate?
When you do things right, people won't be sure that you have done anything at all
Studio1
Bro i think you are on the money, i just recheck it with a mini mircoscope and it is a S not a 5 as i first thought, so now i need to get one from some where to test it
Man the thing is small lol
Thanks Cwispy you guys are right , So its a Diode not a transistor ??
Tagg
best4less
Dell Latitude D500, got it for free so i don't mind playing with it
Tagg
Here is a link for the service manual
You never know if your lucky enough to get
a schematic in there?????????
When you do things right, people won't be sure that you have done anything at all
Nope no circuit diagram
Pfft they call it a service manual LOL
sorry mate
When you do things right, people won't be sure that you have done anything at all
lol yea i have been hunting the net for one but no luck, Do know of any online stores that i could get one of these from ?, as adelaide is pretty much stuff for parts like this
Tagg
Jeez, it's hard enough finding wiring diagrams for Jap import vehicles - but for a laptop?
I've NEVER seen one.. ever.
Best of fortune in finding a replacement component.
So just solder in two diodes? as per diagram- can only be cleaning the ac input no?
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