Technika 46-270 Backlight control

[dick_barton]

Hello All,

I recently completed a repair on this set thanks to the help given on this Forum but now I'm seeking some advice.

The On Screen Menu allows you to adjust brightness, contrast, colour and select some preset picture setting Dynamic, Cool etc. including your personal settings.

What I cannot find is a direct link to increasing/decreasing the backlight level.

Is this only available in the Service Menu and does anyone know what the sequence is to gain access to it.

Thanks

[ReeceyBurger123]

Re: Technika 46-270 Backlight control

Hi Paul, these Umc Tv's do not offer the option to dim the backlight its at one set level permanently. Even in the service menu which can be accesses via usb you cant change the Bl level. If you set the Tv to eco home it does dim it slightly though.

[dick_barton]

Re: Technika 46-270 Backlight control

Thanks Reeceyburger123.
I'm a fussy viewer and did not really find a setting that I liked without considering it would look better if I could lower the backlights slightly.
Appreciated.

[ReeceyBurger123]

Re: Technika 46-270 Backlight control

No worries saves them having to design a dimmer circuit, I guess you could build on which you have to manually adjust on the Tv could be a project lol

[budm]

Re: Technika 46-270 Backlight control

You can increase the value of the I sensing resistor to drop the constant current flowing through the LED string.

[ReeceyBurger123]

Re: Technika 46-270 Backlight control

You can increase the value of the I sensing resistor to drop the constant current flowing through the LED string.

That is the other option.

[Alastair E]

Re: Technika 46-270 Backlight control

Thanks Reeceyburger123.
I'm a fussy viewer and did not really find a setting that I liked without considering it would look better if I could lower the backlights slightly.
Appreciated.

Hmm--

For a fussy viewer--You sure pick a turd of a set! Those things have THE WORST pictures I think Ive Ever seen on an LCD.....
--Doubt the manufacturer even properly matched the chassis to the panel, guess thats why its just so awful.....

Total Junk.

[ReeceyBurger123]

Re: Technika 46-270 Backlight control

Hmm--

For a fussy viewer--You sure pick a turd of a set! Those things have THE WORST pictures I think Ive Ever seen on an LCD.....
--Doubt the manufacturer even properly matched the chassis to the panel, guess thats why its just so awful.....

Total Junk.

I tell you one thing, they drive the Lcds wrongly when it comes to the panel level correction which is why they look so bad, bit like these newer Vestels do. It's because they are universal boards just adapted to drive the Lcd rate not that specific screen.

UMC-Universal Media Crap (Oem of this set)

[dick_barton]

Re: Technika 46-270 Backlight control

Hmm--

For a fussy viewer--You sure pick a turd of a set! Those things have THE WORST pictures I think Ive Ever seen on an LCD.....
--Doubt the manufacturer even properly matched the chassis to the panel, guess thats why its just so awful.....

Total Junk.

I lke your comment Alastair,
I'm a fussy viewer attempting to get a decent picture on the set before putting it up for sale.
Thanks

[dick_barton]

Re: Technika 46-270 Backlight control

Thanks budm. I did think of that but was looking for an easier solution ie via the menu like most other sets.