Re: Replaced Inverter and CCFL still no backlight
maybe the pulse guy is right. something to do with further down the line. keyboard control.
I am gonna take laptop apart and see what's going on.
wang890
Member
Last Activity: 03-09-2014, 07:54 PM
Joined: 03-06-2014
Location: Burnaby, BC
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Re: Replaced Inverter and CCFL still no backlight
yes. just measured. white part. both side, 19v no problem....Leave a comment:
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Re: Replaced Inverter and CCFL still no backlight
here I see the white part there:
doesn't look damaged.
I have 2 inverters one is original another is ebay. they have different arrangements but both works on powering up the LED.
clear enough? I am just using my phone to take pic. don't have a micro lens but have big lenses and big camera. lol
[URL=http://s998.photobucket.com/user/MuscleKing/media/20140307_130513.jpg.html][/URL]Re: Replaced Inverter and CCFL still no backlight
here I see the white part there:Leave a comment:
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Re: Replaced Inverter and CCFL still no backlight
no voltage in half of the thing there:
what to do next? check connector on motherboard is loose or input some voltage directly to the solenoid and see if get 600v on the other side?
[URL=http://s998.photobucket.com/user/MuscleKing/media/Drawing2-Model.jpg.html][/URL]Re: Replaced Inverter and CCFL still no backlight
no voltage in half of the thing there:
what to do next? check connector on motherboard is loose or input some voltage directly to the solenoid and see if getLast edited by wang890; 03-07-2014, 03:02 PM.Leave a comment:
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Re: Replaced Inverter and CCFL still no backlight
yeah, not gonna touch lol. still alive.
ok I took some pics this morning and tried many things.
1. research shows using 9v battery can supply power to the inverter, didn't do anything.
2. using my high school built power supply, supplied voltage. didn't do anything, the inverter got warm.
3. found the yellow wire on the harness which supposed to be the 12v and that is the first wire. measured voltage there is 19v. measured both with my multimeter and the high school power supply which...Last edited by wang890; 03-07-2014, 11:55 AM.Leave a comment:
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Re: Replaced Inverter and CCFL still no backlight
I'll take pictures and put on my photobucket and link them here too. gonna spend all day on it tomorrow. not working.Leave a comment:
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Re: Replaced Inverter and CCFL still no backlight
ok. i will take a look to see any burnt mark on the motherboard where the harness connect between motherboard and inverter and report back.
i got the laptop without keyboard, memory, hard drive, dvd, wireless, smartcard, modem, 3g card, hard drive tray. i collected all these.
worst case is use it as a downloading "desktop" and media station.
but again i am not giving up yet if if i blow the whole thing up.
so is it ok if i touch the pink wire and white wire...Leave a comment:
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Re: Replaced Inverter and CCFL still no backlight
you are getting too technical now. hehe
where is this keyboard controller?
i do have a power supply i built in high school. goes from 1.2v to 30v. still working and i can use that to "inject" power but where?
i think we are getting somethere. i haven't heard the inverter can be disabled. quick google search did not yield any result on how to re-enable inverter.Leave a comment:
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Replaced Inverter and CCFL still no backlight
i got a hp 8530p that i found in the trash from another company. missing many components however i got them all on ebay and craigslist.
the only thing left to repair is the CCFL. same usual symptom. shine flashlight on screen can see the lcd is working.
i replaced the inverter and same thing. couple days ago received ccfl from ebay and yesterday spent 1 hour taking the lcd apart, once got to the old ccfl and i noticed one corner is shattered. that explains why there is a dent on that corner on the laptop aluminum case. i soldered it carefully to the new ccfl, keeping...Last edited by wang890; 03-06-2014, 12:56 PM. -
Re: New Members - please post your introductions here
been reading this site for a while. now finally decide to ask a question.Leave a comment:
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