Picture is clear but sound goes off inbetween for a long time and will get it again goes off why

Start simple by using different cables, whether they be HDMI, VGA or standard COAX cables. They could be losing the connection. Also, it's possible the power supply is wearing out and it gets too hot. You might want to simply try some spray air duster type thing to clear out any dust that can make it hot.

Clear the codes. See if it was just a one-time thing, or if it will do it again.
Next step, you will have to get another Cam Sensor, and then replace it.
It is located on the passenger side of the engine, close to the head. you will need to remobe the engine cover, then remove the hose going from Intake manifold to airbox as well as the airbox to free up some space. Then, take off the timing belt cover. this part is diffficult due to the many botls and limited space, but it can be done in about 20 minutes. your sensor is located just inbetween and below the two CAM gears.

Sounds like it was not flushed properly and bleed of air pockets. Many engines have bleed screws to bleed all the air out when refilling.

THE PAUSE TIME YOU ARE TELLING IS THE TIME TAKEN BY CAMERA TO READY AGAIN. YOU CAN NOTICE THAT WHEN YOU SHOOT PHOTO WITHOUT FLAST/OUTDOOR IN DAY TIME THAN IT DO NOT TAKES TIME PAUSE. WHEN CAMERA USES FLASH IT WILL TAKE TIME TO BE READY FOR NEXT SHOOT. IT IS NORMAL

Hi,
It is clear symptoms that tv needs new lamp as old lamp has reached at end of its life.
Lamp replacement procedure is easy and would be written in user manual, please buy Sony original lamp for good picture in tv.
Let me know if you have additional question.
Thanks.

well this could be a power supply issue try this web site they could have the part www.discount-merchant.com
Ness

I have the same issue, we've had to change our bulb three times in less than two years. now we have 61" expensive paper weight. Our current bulb is less than 6 months old. The TV is only 2 years old and like i said this is our third bulb.

the blue light blinks 4 times. you get sound. then a few minutes the the picture returns... then it goes out, and the cycle goes on.

A solution to this would be greatly appreciated.

How old is this TV and have you replaced its Lamp during that time?
Symptoms shows your Sony KDF-E55A20 TV's lamp is weak and need to be replaced.
Lamp replacement procedure is written in its user manual and if you want online copy, let me know.

I have Mitsubishi TV CS-31303. It has transient issues. At turn on, it shows horizontal fringes for some time along with picture, then single horizontal line only and then after some time finges at the 1/3rd bottom and then clear full picture. After some more time the clear picture turns into horizontal fringes at the bottom 3rd of the picture and picture rolls and then again the picture is very clear. Some one said that there is an issue in the signal PCB. Where is it and what componets are at fault. I do have service manual which shows circuit diagrams.