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    Anybody Have experience with alienware? LA-C912P rev 2. plugged in not charging.

    Cool Thank you! I couldn't find that information, But i didn't know where to look without a schematic for this board.
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    Anybody Have experience with alienware? LA-C912P rev 2. plugged in not charging.

    Don't these dell "Smart" batteries also require a signal from the board to actually turn on the actual battery power. I am not seeing any short on the battery bus. and this is the second battery i have tested on this computer.
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    Anybody Have experience with alienware? LA-C912P rev 2. plugged in not charging.

    I have been fussing with this one, for a bit. 2 replacment batteries, flashed bios. known good power adapter. On boot the bios indicates that the battery has experienced failure. in windows the battery shows very little info in battinfoview, but windows reports it at 100% charge. will not...
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    Injecting voltages into a line...can someone provide instruction pls

    I learned today what will happen injecting 12v into ppbus_g3h with some serious issues on the board. ppbus_g3h was pulled down to 4v and in trying to find the short i burned up the cpu. Luckily this was an old motherboard that belonged to me and was just trying to kill time and see if i could...
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    No backlight. Quanta Z09 REV H DA0Z09MBAH0 Aspire M5-481PT

    Thank you duke. I was pulling my hair out, thinking i was blind. i will order an lcd. Should have double checked my schematic. Your guidance helped me get to the end days faster than i would have myself.
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    No backlight. Quanta Z09 REV H DA0Z09MBAH0 Aspire M5-481PT

    okay on the lcd connector i am getting 3.23v on pin 22 BL enable 3.34v on pin 23 system pwm signal input and 18.9v on pin 27,28 and 29 backlight power. according to their schematic they are all in spec, so does this mean that the lcd is bad, or is there a possibility that the pwm not being...
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    No backlight. Quanta Z09 REV H DA0Z09MBAH0 Aspire M5-481PT

    I guess i ended up with the wrong schematic. I was looking for the actual chip. that was just a drip of flux. the original issue with this board was no power caused by liquid damage. after corrosion was cleaned up and the board was ultrasonic'd nothing looked toasted and the computer was...
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    No backlight. Quanta Z09 REV H DA0Z09MBAH0 Aspire M5-481PT

    Entire board(top and bottom) http://imgur.com/a/rsmHx
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    No backlight. Quanta Z09 REV H DA0Z09MBAH0 Aspire M5-481PT

    I strongly believe it is, I suppose i could be wrong, but it shows z09 on the board, and all of the research ive done cross referencing the laptop model and motherboard model point me to z09. the forum won't let me upload images right now on my phone, macbook, or windows computer. here is a...
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    No backlight. Quanta Z09 REV H DA0Z09MBAH0 Aspire M5-481PT

    I for the life of me cannot find a board view for this board, i have the labeling but being fairly ignorant with quanta boards cannot figure out how to associate this screen print to These two resistors.. and i truly feel like an idiot saying this but i cannot find u22. according to my schematic...
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    No backlight. Quanta Z09 REV H DA0Z09MBAH0 Aspire M5-481PT

    I have a quanta motherboard, computer powers on, and everything seems to be working except for the back-light. backlight out on the lvds connector is 18.6v with or without lcd attached. no short to ground from connector. I am assuming that the led driver is not working correctly or something...
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    820-3115-b No power with charger

    r7080 was measuring 30k instead of 100k replaced r7080 and replaced q7080 and got green light. and fan spin. i think im in the clear.
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    820-3115-b No power with charger

    r7015 100k r7012 1k r7042 0 r7010 29.8k r7011 9.18k r7086 318k r7025 0 r7085 469k r5020 100.9k r7001 4.8 r7000 0 r7016 3k
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    820-3115-b No power with charger

    r7021 10 r7022 9.9 r7051 2.4 r7052 .3 r7005 20.2 smc_bc_acok is pulsing also is there anything else i should check before replacing u7000 again?
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    820-3115-b No power with charger

    Thank you, i will check em out tomorrow!
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    820-3115-b No power with charger

    I did replaced 6259, ill try to replace it again. For sense resistors, you are referring to the the ones around isl?
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    820-3115-b No power with charger

    Computer has had previous liquid damage. does work fine on battery. green has a dim flash about once a second PPDCIN_S5_CHGR pulses from 0v to 18v ppbus_g3_h also pulses from 0 to 18v have replaced isl, q7085 and q7080 no short to ground on ppdcin_s5_chgr i don't know where to look on this guy...
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    820-00164-a Liquid damage Boots but no green light no charging

    Louis! That is a great Cheat! I will have to try it next time, I did get lucky and it was just corrosion on ppbus_g3hot and a bad i/o board. Now i need to order another one to keep one for testing purposes.
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    820-00164-a Liquid damage Boots but no green light no charging

    I was afraid of that, this is one of the io boards, i do not have, but i have one on order. will post back if i have any further issues after that gets in.
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