Laptop is not switching on..no leds turning on ..dead!

Acer EXTENSA 4420-5910 Laptop
2008? +Vista home loaded. new.
you meant that?
dead PC, no full evidence told. is screen dead,fans dead an all LED dead, or beep codes or LED blink codes or text errors to the screen and all that is dead, that is a 100% dead PC or just dead screen
just bought it dead as most this old are dead, from $1 garage sale>?
this screen has CCFL back lamp;s and 99% are dead now world wide, at 20,000 hours on them or 5 years 10hr/per day. dead.
if seem to be on and LCD is dead use flashlight dark room
pointed LCD, if see data now that tells you CCFL tubes are dead
in 30seconds work, amazing no?

here are are the tests, for 12years lold
the CMOS battery in side is bad, dead, and can not be ignored.
remove old battery huge leave it out until PC runs again right.
run on correct AC power pack do not mix it with others wrong.
power on , hold this button for 10 seconds and release (intel reset)
does he power button LED work, LED power glows
fell or hear fan spin , yes too.
then do this

http://pcdied.com/monitors_and_screens/flash-light-trick.html

the flashlight test trick, do this if fan blows.
and or hammer he BIOS hot key F2 as you release power button
this puts up BIOS screen .
the laptop can be connected to a monitor if your CCFL dead
and run like that for ever. (zero portability)
VGA monitory
power on and hit, Press Fn+F5, LCD/CRT/both display switching
seen on page 89 of your manual.
set it to both blind. if CCFL is dead, or to CRT
CRT means external VGA (legacy named ectreme )

probably ur battery is dead or your loading circuit is malfunctioning, due to internal circuitry overload most like to overheating.

Solution posted in your latest post,

http://www.fixya.com/support/t11566511-acer_aspire_5735z_doen_39_t_turn_just

there is a socket in your laptop in a D shape with 15 pin. Connect a PC monitor in that terminal and turn on your laptop if you can see you desktop on that monitor then your video card isn't working or your lcd screen isn´t working anymore.

Yes,the LED power lite on the front panel stable?Yes,mean the DM power supply board is good.LED power like blinking,mean the DM power supply board is dead.DM power supply is good,still making that clicking sound,when turn on.Mean ur Blast board is dead,that the board that help to light up the projection lamp.

When you say the machine is dead do you mean you are getting no LED lights at all or do you mean it is not booting up? No power and no post are two different things. With no power you get absolutely nothing at all. With no post you may have some LED lights but nothing comes up on the screen. You said power and power supply tested ok. How are you testing it? I need more info please.

It is problem with your laptop's SMPS ie. Switched Mode Power Supply.

Due to which your laptop can't get regulated power supply neither from Power Cord nor from Battery.

Yes, your LED will show charging but its useless because your laptop's Mother Board Chip is not getting power.

So please ask some hardware engineer to replace it.

Rate this solution if it was helpful to you.

With Regards,
Shyny

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>4

when you say dead do you mean nothing no light indicators no blinking curser with a black monitor? because if its completely dead then its the motherboard

Compaq MV 540 (old dog monitors) DEAD 100% DEAD.
OSD dead too. it seems.
built in year 2000, its 17 years old, and you fix things that old
why> why do that, used LCD can be had for 20 bucks.
why slave over any relic CRT like this,,, for a musiem??
using the VGA cable
the monitor will go to sleep, lacking any PC sync lines Vert/horz
by design per VESA rules on that !
step one , use a PC.
set the PC up to do the max resolution on the CRT
some PC cant do that, (new PC)
im reading your users guide now, 1sec, google , hit.
first force the PC to 1024x768 resolution and 60 vert. refresh max.
now the CRT can work an not any of above number higher .
see? use working monitor to do that FIRST.

now plug in the vga,cable last. on the monitor under test.


power led means
green = power ok
amber or yellow are sleep or standby.
so that means, there is no sync.
or if the OSD works (does it>) turn the silly sleep timer off in the monitor. via OSD .

the operators guide, tells you to go to PC safe mode.
this mode sets reso real low. 800x600 and all monitors work there.
no sleep timer inside monitor i can find.,

lots of ways for any CRT to fail even the CRT itself
(loss of sweep)
loss of cathode video drive
the VGA card inside, can fail. killing dead all cathod drive.
the power supplies or regs inside can fail.
the HV can fail. 10,000 volts (dont touch it if long life is good)
some survive, or fly back hit head on wall and crush skull,
seen it and done it so,,, there you go.(ripped gash in arm once)
the 2nd anode is very high voltage, avoid it, and win,.
respect it.