My Sanyo 26" LCD TV - model DP26648 has sound but only displays a

likely a mainboard or power supply capacitor issue.
if you have the soldering skills fix it, otherwise time to replace the TV.
If you can de-solder and solder in new capacitors make sure you are using high quality capacitors be very causious of capacitors purchased from auction sites.

change your device cables or try to put at a pc to check if isworking your pc

Looks like the display has developed some problem. Try changing the input device to some other like a DVD player, VCR etc. If the problem persists, this might require attention by a qualified service technician.

Check its T'Con board. This is a common fault to all type of LCD TVs

Hi,
Your problem is the T-con board. This is gone bad/faulty. I would advice you to replace it with new T-con board and your unit will back to normal again. You may look for the replacement online. Try ebay.com or shopjimmy.com.
Hope I helped you.
Have a nice day!
Thanks for using Fixya.

Take it to a tv repair shop.

Pixal on Remote

use the coaxs that srews in

I called sanyo ,they had me try this and that and then said a tech guy would call back he did i am taking the tv to a repair shop and it will be fixd under the warranty.

Make sure of correct input
HDMI is best
cable box must be set to HDMI
otherwise input to channel 3