A780 no power

[Grant76]

My friends a780 has no power to the box.
i have checked the fuse in the plug
I checked the power board with multimeter seem fine
also checked the ribbon cored was secured is there anything
else I could check am at a loss as to why it's not turning on
any help would be great

 

[suds]

what about any of the capacitors.are any domed looking

 

[Grant76]

Had a look at them they looked ok
but to be honest I don't know any thing about
capacitors are they easy to check if blown or not

 

[buzzer]

Corrupt image, not booting?
Could try flashing the stock image using kryptview loader


Sent from my iPhone using Tapatalk

 

[Grant76]

A corrupt image do this how could I flash it with no power on front panel.
do I not need power to be able to flash new image buzzer

 

[trevortron]

Had a look at them they looked ok
but to be honest I don't know any thing about
capacitors are they easy to check if blown or not

"Blown capacitors"- you can normally see the tops of sick capacitors bulging, or 'domed', it's usually obvious once you see them compared to other healthy ones. Having said that, not all sick cap's exhibit this. When you say you chacked the power board with a multimeter, did you check the various rails for voltages- i.e. 3.3V, 5V, 12V and 30-something? (The nominal voltages are usually/hopefully labelled next to the pins on the long power supply plug, though I am not familiar with this particular receiver). If none of the outpts are present, listen for a very quiet ticking, being careful not to get a shock on your ear- it hurts!!.