Bush DLED48287HDCNTDFVPY Standby LED Blinking Constantly

[dick_barton]

Re: Bush DLED48287HDCNTDFVPY Standby LED Blinking Constantly

If you post pictures of your Tcon that would help. It looks something like attached

[BL4K3Y]

Re: Bush DLED48287HDCNTDFVPY Standby LED Blinking Constantly

Check the solder joints on CN11 for cracked or loose joints
What voltage do you have on the fuse on the Tcon board?

I have inspected all solder joints and everything looks fine.

Can you advise on where the fuse is located on the board please?

Is it worth me trying a USB firmware recovery method if I can find the correct firmware file(s)?

Thanks.

[dick_barton]

Re: Bush DLED48287HDCNTDFVPY Standby LED Blinking Constantly

Check the solder joints on CN11 for cracked or loose joints
What voltage do you have on the fuse on the Tcon board?

[BL4K3Y]

Re: Bush DLED48287HDCNTDFVPY Standby LED Blinking Constantly

So you do have video initially and then after approx 2 mins it goes off, backlights remain. How about sound?

I don't get any video or sound output at all.

When I plug in the power cable and press the "ON" button on the remote, the TV powers on, but only the backlight comes on (no video or sound), the standby LED blinks constantly and then after about 2 minutes, the backlight goes off and then the backlight comes on again and the process repeats itself until the power cable is removed.

I checked the LED voltage as you asked and I got a reading of 4.25V.

Thanks.

[dick_barton]

Re: Bush DLED48287HDCNTDFVPY Standby LED Blinking Constantly

So you do have video initially and then after approx 2 mins it goes off, backlights remain. How about sound?

[BL4K3Y]

Re: Bush DLED48287HDCNTDFVPY Standby LED Blinking Constantly

Pictures of your boards and power supply voltage reading would be a good place to start. What is the power supply board number. You may eg have bad leds so voltage readings will help to diagnose the problem.

I have attached photos of the system board, panel sticker and the PSU.

I don't have PSU voltage readings to hand, but I can confirm that the PSU currently fitted works 100% as it was removed from a fully working TV to test with.

Thank you.

[dick_barton]

Re: Bush DLED48287HDCNTDFVPY Standby LED Blinking Constantly

Pictures of your boards and power supply voltage reading would be a good place to start. What is the power supply board number. You may eg have bad leds so voltage readings will help to diagnose the problem.

[BL4K3Y]

Hi,

When I power the TV on, the standby LED blinks constantly and the screen goes off after about 2 minutes and then comes back on (backlight only, no video) - this process repeats itself until the power cable is unplugged.

I have changed the power supply board with a known working part and the issue remains the same.

Before I order a new system board, is there anything else I can try?

I have read that I can possibly try USB firmware recovery / service mode reset, but I can't find the correct file(s) on here.

The TV has the following components:

• System Board: Vestel 17MB211 (23454123)
• Panel Model: VES480UNDS-2D-N12

Thank you.