Question about HP Pavilion A210N (DF210A#ABA) PC Desktop

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Pc not turning on led light blinking

My pc was working 2 days ago, now it doesnt turn on and the fans are not working, and the led light next to the power cord is blinking. waht can it be?

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Check if there is a switch on the back of your power supply if there is try turning off then on again .still no power replace you power supply

Posted on Jun 26, 2009


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I was downloading a program and left the room, when I returned my laptop was turned off. When I try to turn it on the only light that blinks is the second light which I believe is for the battery and it...

v5000V (now obsolete and retired at HP,no support) (tiny)
11 years old now.! (doing site searches i did find the 1 book)
well good, you ran it with no main battery , very good.
they do go bad often and short out inside, so leave it out until the PC runs perfect again,. ok? 11 year old batteries are well, BAD NEWS.
but what does the screen do?, tell about the screen , the LEDs tell very little and get confused easy, see last paragraph below.
the screen must show text that is first of all fact with fan, the fan must blow and not be packed up with lint like all are this old and never SERVICED.
next is what, the RTC coin cell. will be dead.
ill make a list , for you, for laptops only.
  1. big battery out, leave it out, run an AC only pack.
  2. new coin cell,? RTC ? Page 102, ,,
  3. fan must blow, does it>??? and free if lint all vents and fan.?
  4. screen must show text turned on now, does it>?
  5. yes, good , no bad, no means CCFL dead. CCFL are backlamps and all PC this old used daily the lamps are now bad, on all of them or dim, or yellow'd or blinking or intermittent. ALL DO THAT NOW. until 2010 LED born.
  6. yes good ,you got text then we test BIOS next. page 210, "hit f10 to enter setup" < see that , that is the text you saw for 11 years but not today. that is text, and the F10 key works, and takes you to BIOS screens, does it?, if not do line 2 above.

I will stop here, no OS stated is this XP? or VISTA?
after step 6 works we can do windows tests.,hdd test, etc.

the first step on all HP LT
is the HP long reset. (posted millions of times at real HP forum)
1: main battery out.
2: line pack AC removed.
3: hold the hp power-button for 10 to 30 seconds
now run on ac only. run now?

one other clue is beeps and blinks of Caplock Led keys, codes
never ignore blink codes.
page 13 in the above manual covers the battery lamp but the battery needs to be kept out, its 11 years old do no use it.
the lamp
lamp led 1 is power, (does this glow?) if not power pack issues.
if led 1 blinks that means it needs the long reset above.
lamp led 2, is battery , no matter, battery is out. for sure.

here is dead laptop page.
seem you are stuck at step 5 to me.
step 11 below page,see that, it's the flash light test !@

getting the PC to boot is last, its the last in the serial chain of events. (and a whole other bag of snakes)

Dec 21, 2017 | HP Compaq Presario V5000Z Notebook

1 Answer

Dell D600 when powering, leds blinking

Its a motherboard problem. check all the flashing codes here.


it will give you all the information about the codes.

Sep 26, 2009 | Dell Latitude D600 Notebook

1 Answer

Timer light blinks constantly

Is it Mitsubishi WD-52628 TV? please confirm model number.
Unplug TV from AC outlet for couple of minutes, replug back in, turn power ON and check, still same problem?
Lets read error code in TV, press Device and Menu buttons on front of TV at same time for 6 seconds that will activate error code read process. Led will flash in 2 sequence with half second pause. count it and let me know the error code to proceed.

Jun 29, 2009 | Mitsubishi WD-52628 52" Projection HDTV

1 Answer

Panasonic PT43LC14 wont turn on

hi sir im tech in electronics ,if you go to change the lamp for another check the fan that is running cool sounds like the fan does not refresh the lamp and it burn again .

Jan 11, 2009 | Panasonic PT-50LC13 50" Rear Projection...

1 Answer

Blinking green timer light and fan turning on randomly, now no power at all

SYMPTOM: Power LED does not stop blinking after plug in.
CURE: Check C81A2, C81A3, C81B3 and C81B4 (1000 uFD, 16V, 105C) on the DM PCB.
Check C8F19, C8F21, C8F22 and C8F27 (1000 uFD, 16V, 105C) on the FMT PCB.
If any are bad, replace all of them with part # 181P734030 (680 uFD, 16V, 105C).


Sep 30, 2008 | Mitsubishi WD-62525 62" Rear Projection...

1 Answer

Laptop won't start.

connect yr system to an external Monitor(CRT) if it comes up then yr problem might be from the inverter,backlight,screen etc.
but if it doesnt come up then yr VGA card may be damaged.
NB:u must be sure ur system is up n working by pressing the caps lock key to check if the caps lock led will light up. if it doesnt lite up then yr system isnt up n running . what yu do at this atage is to replace the ram n or processor then it should display normal.
hope this helps
thank u

May 31, 2008 | Acer Ferrari 3400 Notebook

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