Picture is okay but sound is not coming

Maybe the cable signal is defective not your tv.the other channel is ok.if you tv has a defect all channel has affected.

we cannot get a picture or sound on several channels. Otherwise the TV works fine. Any solutions? as you get p&s on several channels so your ser is ok the problem 1 loose contact near tuner or it is defective. 2 tuner signal line .

Hello, it sounds like your inverter board is goin out on the set, when you change channels if you notice on almost any TV the screen goes dark and the new channel appears, it sounds like you are not getting enough power out of the inverter board to power up the backlight enough to come on. This is why the sound remains because everything else works fine and the sound is connected to the main board.

switched HDMI plug from HDMI1 to HDMI2 port and that solved the problem

I hv philips 21RF vardaan TV ,there is sound on AV channel. and the picture is blinking. even some menu setting have changed.. i tried using the service menu but cudnt understand anything. 2 new av channels have come.. av2 and front which were not present before. sound is not coming even on the other channels but picture is fine on them. only on the av1 channel it is blinking., the philips technision had solved this prob once by pressing some code by remote and i don't know the system code

it is problem your TV high voltage unite(EHT)
change it by authorised service centre

the light source is out. the new lamp will cost around 250 easy fix.

change sound setup to dk/bg

i am a technician and i too have this issue. if any of you can get a schematic and service notes, send them to trae3@live .com and i WILL find the problem and report to each of you. i cant get any help from sears all i need is to speak with a technician who actually works on these things, get the paperwork and then i am sure it is a matter of a module swap. any info will help us!

Sounds like a tuner or Video output problem. What make and model set do you have.