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Hp Compaq CQ61 does not display after Screen flex cable is short circuited on connecting new screen

Tags:
  • Laptops
  • Hewlett Packard
  • Laptop Screen
  • Cable
Last response: in Laptop Tech Support
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September 30, 2014 2:07:32 PM

Hello guys
I happened to change the screen of my laptop after breaking, But as I was connecting the new screen i forgot to switch off the laptop power. So on connecting the screen flex cable to the jack on the screen it short circuited and sparked with a bright light, leaving the top of the flex cable bunt while the laptop switched off immediately.
After that it didn't switch on till I opened and disconnected the flex from the motherboard,
I connected an external VGA screen but nothing was displayed. I then performed a hard reset on the laptop but all in vain. ( removed cmos battery , HDD, RAM , etc)

Since then it is the laptop is booting properly, and running normally, but not displaying.
What might be the problem??
Is it a Bios problem??
is it the display adapter, that was affected ??
I changed the processor, but still nothing came up.

More about : compaq cq61 display screen flex cable short circuited connecting screen

a c 252 D Laptop
a b α HP
September 30, 2014 5:05:26 PM

Hi, maybe you just burn the inductor for 3.3VLCD.
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October 1, 2014 7:06:36 AM

jarotech said:
Hi, maybe you just burn the inductor for 3.3VLCD.


where is that one located?
But I checked the whole motherboard but nothing is physically damaged.
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a c 252 D Laptop
a b α HP
October 1, 2014 7:37:25 AM

When a part is defective, at that level, you won't see any visual deformation. If I have the correct schematic, it's L52, the 3V is passing thru the inductor to the 3VLCD. (sorry, it's not 3.3V, but 3V).
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October 1, 2014 7:55:49 AM

jarotech said:
When a part is defective, at that level, you won't see any visual deformation. If I have the correct schematic, it's L52, the 3V is passing thru the inductor to the 3VLCD. (sorry, it's not 3.3V, but 3V).


So what can I do according to what I have said ?? because the laptop boots properly, and i can hear some sounds when I press a wrong key on the keyboard during booting...,..

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a c 252 D Laptop
a b α HP
October 1, 2014 8:09:56 AM

Can you use the cable for the screen?
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!