Sunbrite 3200hd-pro

[White fish]

Hello I was given a outdoor tv
I am not a tech so my skills a limited but not afraid
If I see something obvious (bad cap I can solder an new one in) or can change a board but testing skills are lacking

hooked up AV1, AV2 and VGA all seem to be in black and white

when switching, blue screen looks fine
the on screen menu looks fine

I pull out the input board sprayed with contact cleaner
pulled out the cable going from main board to t-con board sprayed with contact cleane

can we go through the list...

color on the menu is fine, blue screen looks fine - So I think the panel is OK

no lines or bloshes - So I think the Tcon board is fine

the screen is lite up and menu looks fine - So I think the back light board is fine (however I do hear a little hum coming from that but maybe that is there all the time when its on??)

so Im left with main board or input board


this is a very old tv but an outdoor tv should I throw money/parts at it or cut my losses

[White fish]

Re: Sunbrite 3200hd-pro

this tv shares boards from what looks like some OLEVIA or SYNTAX tv's

[dick_barton]

Re: Sunbrite 3200hd-pro

"A picture is worth a thousand words". If you can post pictures and also of the circuit boards would be a good start looking for help.

[dick_barton]

Re: Sunbrite 3200hd-pro

That was fast. Can you also supply a screen shot please.

[White fish]

Re: Sunbrite 3200hd-pro

[White fish]

Re: Sunbrite 3200hd-pro

another strange part it wont let me change
Brightness, Contrast, Saturaton, Hue or Sharpness by more then 1 or 2 points

[Diah]

Re: Sunbrite 3200hd-pro

it is the main boards issue, much like leads soldering open. or main chips processor issue, try with finger on the black heat sink push down little hard many time if the screen make color effect

[TechGeek]

Re: Sunbrite 3200hd-pro

Have you tried different video sources?

[White fish]

Re: Sunbrite 3200hd-pro

I have feed it with VGA (computer)

AV 1 (composite input yellow red white) WD media player

and AV 2 same

I dont have anything component input (RBG)


I have tried the WD media player with the same cable on different tv and works fine

[dick_barton]

Re: Sunbrite 3200hd-pro

Have you set the TV to the wrong standard. NTSC, PAL SECOM etc. That's the only time I can remember seeing a colour picture turn B/W especially since you have the menu in colour.

Is there a Reset to Factory mode buried in the menu?

Edit:
If you tried it through AV1 & 2 that bypasses the tuner so I doubt its a standards selection problem as I first thought.

[White fish]

Re: Sunbrite 3200hd-pro

Ok
I tried wiggling the black heatsink - no change

I pulled the board and tried the heatgun on the backside of the board - no change

so are we are pretty confident that its the main board?

thanks

[Diah]

Re: Sunbrite 3200hd-pro

another strange part it wont let me change
Brightness, Contrast, Saturaton, Hue or Sharpness by more then 1 or 2 points

from this i think its main boards, and only the main processor which under the heat sink responsible for this adjustment and video out put.

try to go to Sunbrite website and download the Firmware and play it again.. it may help too

[White fish]

Re: Sunbrite 3200hd-pro

I cant find anything about this tv on their website
Im looking for anything, doesn't seem to be very much no firmware no hidden menu

thanks
I will order a new board from Jim

[White fish]

Re: Sunbrite 3200hd-pro

Got my new main board today
worked like a charm
now I just have a bit of "burn in" Im tryng to get rid of

Thank you guys so much for your help