Laptop Screen problems

[dean_whu]

Hello, I wondered if you could help. I was given a couple of old laptops that were no longer wanted because people had upgraded and the power jacks had failed. They were Acer Aspire 5630 and Compaq Evo n610c.

 

I dont know if this is coincidence, but both screens at the last time of using were known to work. After removing the broken jacks and soldering in the new ones (successfully) the display would not come on, and in both cases initially would be very dim. I am quite a beginner when it comes to soldering, and as in both cases the inverter is close to the power jack, I wondered if it would make sense that I could have somehow shorted the inverters in both cases? Even though the creen and inverter would not have been attached while soldering. Or maybe it is just coincidence? Any help you could give me for now and for future power jack fixes would be really great.

 

Also re. the inverter, I suppose the only way of knowing if it is an inverter or lcd problem is through, replacing and trial and error?

 

Thanks a lot, Dean.

[dean_whu]

So I have discovered that obviously the inverter is not near the power jack, the inverter is inside the screen. I am not sure what I was thinking.

 

I have however replaced the inverter in the Acer with a known working inverter and still no change.

 

In both instances having changed the power jack and got the machine working, the screens are incredibly dim.

 

Does nobody have any help for me, please?

[DSTM]

Hi Dean.How are you trying to adjust the Brightness?

[DSTM]

On the Acer brightness adjustment should be the FN and L and R arrow Keys.

These LCD Screens get dimmer with age.

May need replacing.

Hook up an external Monitor if you have one around,and that should tell you,

if the problem is the LCD Screen.

[mikeybumps]

On the Acer brightness adjustment should be the FN and L and R arrow Keys.

These LCD Screens get dimmer with age.

May need replacing.

Hook up an external Monitor if you have one around,and that should tell you,

if the problem is the LCD Screen.

 

and the hp should be fn+ one of your f-keys

:D