lg 32lh2000-za stuck in standby

[bluesmoke]

hi im after some help i have a lg 32lh2000 stuck in standby i have the 5v line and led on front is on  but i have no 12v or 24v is there any common issues with this ?
the part numbers are
mainboard EAX606866904(2)
power supply EX55176301/12

Please see photos attached thanks for anytime given to help