Acer Aspire 7560 Screen LCD flicker

rhuephus1234

Have an Acer Aspire 7560-SB416 (with AMD A6-3400 APU) that was "stepped on" and busted the LCD/LED screen.   Replaced the LCD/LED screen and it works, but the screen / display flickers. Tried a different LCD screen and same flickering (both screens are new and tested ok on another laptop).  

 

Replaced the LCD cable - same flickering.  Pulled the motherboard and pulled the heatsink from the CPU - both the CPU and HS had water on them.  Cleaned and repasted the CPU/HSF.  With only the motherboard, LCD cable, DC jack and power cable attached, powered on -- still flickering.  

 

Note: This flickering occurs at the POST screen (in BIOS/setup), when booted into Windows 7, or booting from utility disk using XP -- so it has nothing to do with any OS.  

 

Downloaded and updated the most current BIOS from Acer support site -- still flickering.  

Any suggestions on anything else to check ??   The only other obvious problem is the motherboard itself.

 

Thanks to anyone with any additional suggestions.

 

Rhuephus1234

silizium

One suggestion is to put all your hardware components disassembled in a furnace and "bake" it at very low heat (30-40°C) for 10 minutes. To make sure every moistness is evaporated.

rhuephus1234

Thanks for the suggestion, but we do not have a "furnace".  And our room environment temps already range from 30-40°c. with airflow from a highspeed fan.  However, I have read/heard (on YouTube) about using this method for re-flowing the solder points on chipsets, but do not have the setup to try it.

 

 

silizium

The problem with water is, it does not evaporating if it's under or between very small components. You will have to change the position or maybe use compressed air to clean/dry it. The best way to do this is to use a furnace/oven. Most people have an electro oven in the k*tchen, this would suffice.

 

Edit: @Acer: I could not use the word k i t c h e n in this post, it's not allowed by the forum software. This makes no sense.