[White fish]

I have a Sunbrite 3200HD-PRO the screen has gone yellow on all source in put but the menu colour looks fine

what could it be?

 

[budwich]

vga cable or connector has a problem

 

[White fish]

it yellow with VGA component 1 and 2


input board??

 

[budwich]

try reseating connectors on board along with cleaning. what source are you using and what others have you tried?

 

[White fish]

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 cleaner


ok thanks for trying to help


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 of input board


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

 

[budwich]

as you figure, your problem is somewhere on the main board / input board or the input itself. Since the main board is generating (internally) its menu and it looks ok, the board itself may be ok AT it "output stage"... but that doesn't rule out the input side of the board or the input board (assume seperate one) that things are connected to. You didn't answer what you are feeding things with. At the component level switch around leads and see if things change.

Basically, it would appear you lost the blue input for what ever reason. Disconnect the red from the component setup, screen should go green.

 

[White fish]

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

 

[budwich]

if you have access to rgb output device and a vga to rgb cable, you can readily "experiment" by switching around the components. Further, your problem "statement" didn't really specify what happened to cause the problem... eg. just happened, happened after long storage, happened after dropping, happened after cleaning, etc.

Still further, most boards have labelling on them to indicate things like voltages and such. Check to ensure those voltages are indeed present on / at all boards.

As for whether the tv is worth it... depends on whether you got something better to do...

 

[White fish]

happened all of a sudden

I might buy buy a Main board and see what happens??

looks like I can get one for about 60 bucks

 

[White fish]

pics of insides