Dynex LCD TV, no backlight. Suspect transformer ohm readings

[DasBub]

Hey guys. I have a cheap-as-chips Dynex 22" TV ( DX22LD150A11 ) that powers on, passes the flashlight test (image on dark screen), but with no backlighting.

The power supply board is a DPS-65TP-2 A and - after looking through the forum - I suspect the culprit is a transformer on the secondary side, T302, part number TMS94481CT.

This page lists the resistances as 0.2ohms primary and 960ohms secondary. The values I've measured are [S1-S2] 267Kohms and [S3-S4] 980ohms.

I'm guessing this means that the transformer is toast but I just wanted to make sure I'm not insane.

Thanks!

[DasBub]

Re: Dynex LCD TV, no backlight. Suspect transformer ohm readings

Derp. Should've included model number in thread title. Sorry about that.

[budm]

Re: Dynex LCD TV, no backlight. Suspect transformer ohm readings

Yes, that is bad winding on the transformer.

[DasBub]

Re: Dynex LCD TV, no backlight. Suspect transformer ohm readings

Thanks for the sanity check! I'll order a replacement and let you know how it goes. Cheers.

[RWolfe8970]

Re: Dynex LCD TV, no backlight. Suspect transformer ohm readings

I have the same TV as you however mine is saying please wait, Im thinking backlight inverter after doing some research any thoughts

[Amraks]

Re: Dynex LCD TV, no backlight. Suspect transformer ohm readings

"please wait" sounds like its trying to load firmware.