Replacing of defective MAin Logic Card for my BenQ LCD TV 2050
My BenQ LCD TV DV 2050 is not working.
When i showed it to service centre, i am told that Main logic card has developed fault and they can not detect in absance of a circuit diagram for main logic card.
I am trying to get access to the circuit diagram or replacement of main Logic card
When i showed it to service centre, i am told that Main logic card has developed fault and they can not detect in absance of a circuit diagram for main logic card.
I am trying to get access to the circuit diagram or replacement of main Logic card
Televison & Video - BenQ - DV2050 20 in. HD-Ready LCD Television
Answers & Comments
Replacement of a main board might be tricky and not worth the money, I am not sure if you would troubleshoot or replace yourself.
- Have you opened the TV and seen the board?
- Once you open, can you actually remove it?
- If this is fairly new, (3-5 years) lead free solder would have been used, and prone to cracks
- Inspect every solder joint under high power microscope.
- BGA parts need X-ray, tough to get this done if you are not a solder/circuit board house
- If you apply pressure to BGA, when powered up, it may connect and work, this is a troubleshoot technique.
Hope this helps