I called Humax twice, got a very arrogant fella on the phone, who quite frankly was a waste of time and didn’t care. Said he would call back but didn’t. I am in contact with the CEO as I believe they have a responsibility to help. Nevertheless…...
A closer look showed that the unit isn’t off but instead there is no HDMI output. If the audio is running through the amp (phono out not HDMI loop through) you can still hear the sound.so it is not off!
In the morning from cold it works and then not too long afterwards the same issue occurs – blank screen, no sound on TV and displays no signal. What have I tried?
• Different HDMI cable
• Different TV
• Factory reset.
• Different HDMI input on TV, and
• Deleted relationship with Freesat app in case the app was communicating with the unit and causing issues.
After all of this I started to think that maybe its overheating. So, I whipped off the top?
At first, I disconnected the HDD, just to eliminate the drive. No joy.
I noticed that the processor heatsink was very hot. The heatsink is incredibly flimsy. Probably just about doing its job, to keep production costs low. I also noticed the exhaust fan wasn’t spinning. Not sure if its working of if the driver isn’t powering. Something to look at later.
I dint have a can of freezer handy, so I took an icepack out of the freezer and help this on the heatsink (careful not to thermal shock). The unit can back on.
I run it for a while with the top off the unit, and now then put the lid back on to monitor performance.
In general, the box doesn’t really have much ventilation, and even if the fan works, it probably again will do the bare minimum. Instead, I think a separate stick on heatsink with thermal tape will be better if it looks like it’s a heat issue.
What I’ve done meanwhile is stacked steel washers on top of the heatsink. I know thermal transfer isn’t great this way but hopefully will prove a point.
I cannot see how the existing heatsink is fixed (soldered through PCB or just stuck on). Careful no to pull as you could pull the CPU off the PCB and write off the board.
if it continues to work well, I will get a 30mm x 40mm x 20mm heatsink and stick to the existing CPU heatsink.
