HK AVR-247 protect mode

Fault in one or more channels.
Take your DVM and test for short circuits or take it to an HK repair shop.

disconnect speakers then try again if still shutting down you will have bad outputs.

This is clearly a manufacture defect right off the assembly line. From your description you have a serious intermittent problem with the AVR unit when it comes to selection and other choices and it will only get worse, I strongly suggest you return the item in favor of another.

The unit is going into protect mode. Lets hope it has done the job and the receiver has protected itself from failure.
Protect mode can result from speaker wires touching each other or the Amps metal case. Check that first.
It can also be caused by unstable ohm loads if too many speakers are connected to any of the outputs especially zone 2.
If you can remove all speaker wires and turn the unit back on. If it stays on, turn the volume down on the main zone and zone 2 if connected. Then reconnect speaker wires.

I have an HK AVR140 all of the displays work, even shows when a digital connection from the Blu-Ray player is connected but no audio comes from the speakers! I found some information that HK does not have DC protection so when there is a problem muting Circuit is initiated on the main Amp. I called HK and they want me to send it in to a service dept that is not close at all. Any ideas? Or is there a way to by-pass the muting circuit somehow?

I've had the exact problem. HK in the states is no help, you need to deal with a company in Montreal (Jan Industries). Regular techs are unable to fix it without schematics that only authorized dealers have and the manufacturer. This problem happened to me just after 2 years and outside warranty. I've bought a Yamaha today.

The relay on the PWR SUPPLY board clicks once when the PWR switch is turned on then 2 to 5 sec. later it clicks again and 'off' it goes.
The small transformer ( standby power) on the board appears to be leaking crud (looks like wood glue) all along one edge.
Can I bypass this relay to see if the power transformer is 'ok'?

The problem might be that the set can not handle the change in signal. Try setting the AVR-247 to 720P first then turning on the set. Or manually set the TV to receive 720P then change the AVR. TI believe that you have a connectivity issue where the two units are not speaking the same language at the same time. Update this with your results and please post the TV make and model.
Thanks,
Dan

The protection is most likely being triggered by an internal fault. Typically the power amp section. The receiver will need professional service.