kdl 32S2030 no display

[Easky15]

Hi, I have here a Sony KDL-32S2030 and when i power it on i get a black screen with backlight on and green power light on, I held in the volume up button and could hear the volume go up then a slight hissing sound when it was at max so it would appear the tv is powered on ok just not displaying anything... I have the back off it here now, Anyone any advice?? I've included a pic of the back of the set and the tcon, I was looking for a white fuse labled f1 to test but couldn't see any, Can anyone help me out a bit here... Thanks.. ;-)

[R_J]

Re: kdl 32S2030 no display

on the t-con near the lvds cable, next to the board marking D101 is a chip fuse marked `P' (cp1o1p) that is the fuse.

[Easky15]

Re: kdl 32S2030 no display

Thanks R_J, I'm getting 0.341v on one side of the tcon fuse and 0.000v on the other side?? Is there anything else i can test or does this mean a bad tcon which i need to replace..?? Thanks..

[budm]

Re: kdl 32S2030 no display

It means the main board is not sending the B+ (5v or 12v depends on the LCD panel)to feed the T-CON board. There should be switched MOSFET that is turn on to send the B+ to the T-CON board. You can trace those 5 wires on the left of the LVDS connector back to the main board to see where they are connected to.

[newtothis]

Re: kdl 32S2030 no display

This with the set on?

Budm got there before me!

[Easky15]

Re: kdl 32S2030 no display

This with the set on?

Budm got there before me!

Yes mate i get these voltages when the set is powered on and backlight is on..

[Easky15]

Re: kdl 32S2030 no display

It means the main board is not sending the B+ (5v or 12v depends on the LCD panel)to feed the T-CON board. There should be switched MOSFET that is turn on to send the B+ to the T-CON board. You can trace those 5 wires on the left of the LVDS connector back to the main board to see where they are connected to.

Thanks budm, So does this fault sound repairable or does this mean a faulty main board needing replaced?

[newtothis]

Re: kdl 32S2030 no display

Thanks budm, So does this fault sound repairable or does this mean a faulty main board needing replaced?

Possibly repairable if competent at tracing circuits and soldering.

[budm]

Re: kdl 32S2030 no display

"I'm getting 0.341v on one side of the tcon fuse and 0.000v " I wonder if there was shorted circuit on the T-CON which caused the fuse on the T-CON to blow, and it took out the MOSFET on the main board with it. Please verify that the fuse is still good.