LT7079VTS / LIFETEC [TV]

• Vertical collapse.
• No picture. on lower half screen.
• Line tearing. after warm-up.
• How to enter service mode for geometry.
• Vertical foldover. at top and bottom.
• No picture. Audio OK .
• Reduced horizontal size.
• Line output transistor after replacement defective again. No function.
• Line tearing. (service info for LIFETEC -LT7079VTS)
• No functions.
• Picture has shifted to the right and slightly to the bottom after inputting test picture. Picture has shifted approx. 1/5 to the right and approx. 15cm black screen on the left. E/W is slightly bent.
• No function. Standby LED lights up only briefly.
• Dead.
• Diagonal stripes at aerial as well as at scart and videotext. Picture content can be seen.
• Line output transistor Q304 fails repeatedly after approx one month.
• Line transformer flash-over.
• Vertical jitter. in TXT.
• Only rainbow colours recognisable when screen grid voltage is increased.
• Horizontal output transistor fails repeatedly. at start-up.
• No synchronisation.
• Vertical stage fails.
• Wide bars run through picture (like line foldover).
• At PB of a video via scart (regardless of which of the three sockets is used) appliance has the sound of tuner.
• FBT is defective.
• No horizontal synchronisation.
• Severe E/W fault after cold start. Picture ok again after some minutes.
• HV builds up for a short time, but LED switches off.
• Picture is not synchronised horizontally, runs through at an angle. Fault is always present, no improvement after warming. Picture of TXT ok. Picture issued via AV ok, however unsynchronised picture is slightly visible in the background.
• Red and blue line at the top edge of the picture, picture flickers.
• Picture signal via scart 1-3 has a vertical bright interference line on the left hand side, approx. 10cm to the left from the edge.
• At switch on lines appears and then goes off. Audio OK.
• No colour.
• Horizontal deflection collapses with pulsating after warming up, picture disappears and reappears then. Vertical line when picture has disappeared. Sound remains. Deflection ok again one second later. Process is constantly repeated.
• Switches off by itself. after start-up.
• No picture. No audio.
• No picture (intermittently).
• Red picture. Dark picture.
• No picture.
• Line output stage fails.
• Dark picture. Audio OK .
• Shuts down.
• HV flashover on line transformer.
• No vertical deflection.
• E/W fault.