Hello, DV6700 , dead but when i plug the adopter the light come on only, i checked mosfet pq30 pin 5.6.7.8 19v pin 1.2.3. 0v pin 4 0v, but mosfet is ok
Dv6700 dead, only adopter light in on
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Re: Dv6700 dead, only adopter light in on
Here is schematic, thanks for your helpAttached FilesComment
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Re: Dv6700 dead, only adopter light in on
u r senior member. u must know that u must start with measure charger ic pins
but is it worth it? that nvidia NB was same shit like nvidia GPUsLast edited by ktmmotocross; 02-12-2019, 01:43 PM.Comment
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Re: Dv6700 dead, only adopter light in on
Hello, sorry i thought i said i tested the pq30 which i got only 19v on pin 5.6.7.8. pin 1.2.3. no output even pin 4Comment
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Re: Dv6700 dead, only adopter light in on
yes, max8724 is the chargilng ic for this laptop, meanwhile on this board i found this components short ..[ pu8 TL331 ] and pq27 IMZ2, i dont have exact numbers , which one can i use as replacement ? IMZ2 is shoted all the legsComment
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Re: Dv6700 dead, only adopter light in on
I already removed pq27 there was no short on board, when i tested outside circuits still shortingComment
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Re: Dv6700 dead, only adopter light in on
I think it's this section that's acting as a charge pump.
Not exactly sure how it works but I think the opamp circuitry around PU8 is an astable multivibrator and PQ27 is some sort of "buffer" to charge/discharge the capacitor PC88 and not affect the characteristics of the astable multivibrator.
This just creates an oscillator for the charge pump (centered around PD12, the dual diode on top right, I cut the markings in the screenshot…) to workOpenBoardView — https://github.com/OpenBoardView/OpenBoardViewComment
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Re: Dv6700 dead, only adopter light in on
I think it's this section that's acting as a charge pump.
Not exactly sure how it works but I think the opamp circuitry around PU8 is an astable multivibrator and PQ27 is some sort of "buffer" to charge/discharge the capacitor PC88 and not affect the characteristics of the astable multivibrator.
This just creates an oscillator for the charge pump (centered around PD12, the dual diode on top right, I cut the markings in the screenshot…) to work
HISPECK the curcit you must get rid of the shortLast edited by Techtiger; 02-14-2019, 11:20 PM.Comment
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