Upon turning on computer, screen remains black, power button, volume, speaker, etc. lights up, fan on, but NUMLock/Caplock LED's blink continuously (no pattern). Was able to get screen to appear after...
that error means BTW, POWER IS TOO LOW. !
one guy said what is power?, I said well, "it runs on DC power, from the power pack and bank of regulators in side, and if power is bad, all is hopeless until fixed. " We test that using magic tool called a voltmeter,guessing zero here. we do tests.
if that is not clear, have it serviced in a shop.
we first clean the PC and get out all that lint that causes overheating.
" Was able to get screen to appear"?
what screen? , keep in mind , we are blind here
in a silly text box. post photos of screens?
be like the first ever.?
We do sequenctial tests to fix PC
booting is serial process, so that is the path to proper diagnosis on all PC.
lets see , that now. 6 year old PC, best I can tell
1: main battery out! if PC runs now, the battery is bad. end story. buy one or leave it out for ever.
2: line pack , make sure 19vdc makes it to the MOBO, as for sure , no power there , NO JOY, ever. ok? use a volt meter, to test power or buy a new AC/DC PACK if guessing is the order of the day.
3: BIOS screens are first, forget windows, or what ever OS you run, (unstated by you ,sadly)
4: The BIOS screens are F10 or ESC, older is f10
the PC prompted you for 6 long years, hit F10? to enter setup, so that be it.
Power on and quickly n hammer the F10 key, see BIOS?
5: if the bios screens are dead, no text ever.
our gold is BIOS. first.
then the CCFL H3LL.
PC older than 2010 were NON LED screens and were
CCFL tubes (that sux) the fail, the all fail fast.
in fact left on in 2years the die. longer if LT unused mostly.
your PC has CCLF, they can go dim,blink,go yellow
or die or even go INTERMITTANT.
one day ok, next not this is the magic world of CCFL, all do that , now or soon ,for sure.
see the flash light trick yet.
as seen here
Lets say the LCD is truely dead not just back lamp dead. what then
I told you its serial process , and is.
next is what, well the PC told you power was bad.
in fact so bad the LCD data part is dead.
the PC can not compute at all.
due to low power.
we then stip the PC down to its basic parts.
from easy to harder in every case.
labor, hard. dig. LT sux to work on, a fact,
i pull the CD drive (testing boots each time)
I pull the HDD drive.
pull all memory but one testing each 1 by 1 for hope. deal.
my mobo in my laptop has 6 or 7 modules. (i dont pull CPU)
keep in mind any thing there seen can short. right?
you do know shorting will overload your regulators.
a fact of life
so pull them all, wifi card,modem card, express card, blu-tooth module ,well pull all that can be pulled. after all again, learn that all things inside can short out.
beyone here, is mostly main board doom.(mobo)
some 2008 PC had solder ball failure,
seems im not sure last your your was made, hoping not 2008., PC from H3ll MADE THEN.
i can not for he life of me unstand the afraid comment..
does that mean the PC runs ok after fiddling it
you never said that. only the fiddling parts.
Oct 10, 2017 |
HP Pavilion DV7-1232nr Notebook