What causes horizontal black and orange lines in your pictures

The cable is either bad or the cable has not been securely full connected to the input and the output ports can have loose connections and can cause the signal and have horizontal or vertical lines to show up on the TVs screen. The cable will need replacement.

If you wish to get some details; check the site linked here. Pull up older posts. Surf the site with patience.
http://electro-medical.blogspot.com/
http://electronicshelponline.blogspot.com/
Line, faults & possible causes to LCD screen are given with illustrations. You can get an idea about the fault to an extent.

Does this occur only on the camera, or is it visible on your PC during PP operations ?

This is a problem with shutter not fast enough opening to take a picture indoor shows the horizontal lines. In sun light it is too slow and over expose the picture. Not worth the trouble to fix, buy another camera?

Horizontal may not be due to the CCD sensor. It can be due to the lens itself. I swap lens from a non-working camera to replace the one with horizontal lines. I found out that I was able to get the camera to work to take great pictures.

Was it fixed by an AUTHORIZED service center.
Sounds like the CCD/sensor has failed, which is the eye of the camera. Go to a reputable place, I know one in Florida, but I don't know where you are.

Ive got bad news for you, about 90% of the time black horizontal lines are caused by the panel failing, your going to need a new TV. You can try replacing the timing board but the chances of it fixing it are slim..

The intermittent horizontal line is cause by a loose solder connection in the vertical amplifier IC.
The IC is mounted on a heatsink nearby or around the flyback transformer.
The way to fix this failure is to add fresh solder where you see some brown spots on the circuitry that were cause by components getting hot.
Good Luck.

your tv is having horizontal problem take it to a tech in order that the hrizontak deflection circuit be checked it also might have abad yoke

they gona get worse to dead circuit, a small capacitor (problably in the neck board) is bothering you, get a tech now that he can see the problem, gonna be cheaper now....good luck ps some times the picture say to the tech was going on