hyundai hlt-3711 lcd.. dead

[taloola]

ive got this hyundai that does nothing at switch on ,no led's.when i have checked the psu (without main board connected)i get all the correct voltages.when connected to main board the only voltage present is 5v standby.one of the pins from psu to mainboard is labelled control,but i dont know what condition should be on this.has anyone faulted one of these,or has anyone got a service manual.the mainboard has got no visual model number.any info would be appreciated,thanks

found out that the main board is :tango main b/d....any info appreciated