BUSH DLED32165HDY - Won't turn on

[PopperSnapper]

Hi, I'm looking for anything that can shed some light onto what's causing this issue before it gets taken to the dump. I've replaced the main, power and t-con boards but the issue still persists.

The TV refuses to on. I plug it in, hit the power on button (remote or back of tv) and the front red led flashes 12 times then stays on. I hit the power button again and 12 more led flashes, but then there's no led.

Voltages in the images, both sets of boards are the same.


Standby light on:




Standby light off:





I haven't got a backlight tester so haven't attempted to access them, but would dodgy backlights cause this

[dick_barton]

Re: BUSH DLED32165HDY - Won't turn on

If you have replaced the main, power and tcon then it certainly looks as though all you have left is the panel leds.
The 100V capacitor close to the led connector looks very much out of shape.

[cryst10]

Re: BUSH DLED32165HDY - Won't turn on

Tested the backlights and they're fine.

Thinking back to the main board I bought, it didn't mention the screen type, only the model of the TV. Could it be incompatible?

Is there any way to install a fresh firmware via usb? 17MB140 / VES315WNDL-2D-N15

There's a Polish site, where somebody has the same flashing light on the 17mb140 board that says replace U14 (eeprom) and flash the firmware at the the link. The link is dead though.

[arizanotlari]

Re: BUSH DLED32165HDY - Won't turn on

try recovery firmware : https://yadi.sk/d/lS3nXGIZ3HVWFw

panel file : https://yadi.sk/d/9RsLZQwG9LP8Mw

spi dump : https://yadi.sk/d/Yelb0Ko2wwhwtw

[cryst10]

Re: BUSH DLED32165HDY - Won't turn on

Thanks for the links, but the recovery firmware link seems to be the same one on the Polish site. There's no file to download.

[dick_barton]

Re: BUSH DLED32165HDY - Won't turn on

You mention that you have tested the backlights but you have the voltage at the led connector. How did you check the leds?

[arizanotlari]

Re: BUSH DLED32165HDY - Won't turn on

New link : https://yadi.sk/d/TrHkKpvHACHOaw

[cryst10]

Re: BUSH DLED32165HDY - Won't turn on

You mention that you have tested the backlights but you have the voltage at the led connector. How did you check the leds?

Took the strips out of the tv and used a DIY tester using 9v batteries that I found on YouTube. All the LEDS lit up super bright, so I guess they're good?

New link : https://yadi.sk/d/TrHkKpvHACHOaw

Thanks.

[dick_barton]

Re: BUSH DLED32165HDY - Won't turn on

From your testing how much voltage was required to drive the leds.

Are there 4 strips?

Ebay shows there are 11 leds per strip so would require 11 x 3V = 33V minimum if 3V leds per strip.

Does pin 5 of the MAP3249 (U2) have a voltage >2.5V also what is the voltage on pin 1 of U2

You may have a connection problem somewhere between the led connector and where they connect to the strips.

[cryst10]

Re: BUSH DLED32165HDY - Won't turn on

There was two strips. I joined 3 9v batteries together to test each strip and all 11 leds lit up brightly.

I've binned it now anyway. Thanks for your replies though. ��