CTV7050 / PROFEX [TV]

• Distorted picture. at top.
• Standby LED flashes shortly after start-up, then slight chirping noise from PSU and dead.
• Centering shifted.
• Reduced vertical deflection. (service info for PROFEX -CTV7050)
• Shuts down (after start-up).
• Comes on for a short time.
• No RC functions.
• Line output transistor fails repeatedly.
• H end stage transistor fails at irregular distances without recognisable cause.
• No picture. Audio OK .
• Picture is narrow and horizontally folded over.
• Torn picture (horizontally). (CTV7050 PROFEX repair tip)
• No HV.
• Mains fuse blown.
• Line tearing. after warm-up.
• Reduced horizontal size. on the right.
• Videotext jitters.
• No start-up. LED blinks .
• Smoke from CRT board.
• E/W fault.
• No picture. No audio.
• Goes deat with a bang.
• Pincushion distortion.
• Appliance does not switch over. Only AV2 is operating. Picture and sound are OK.
• Line output transistor S2055 S/C.
• One colour missing.
• Three coloured lines in the half of the picture.
• TXT appears instead of TV picture after switch on.
• Weak vertical stripe in picture.
• OSD jitters. Picture is OK. Vertical shifted.
• Bright picture.
• Dead.
• T309 (BC618) defective.
• Flyback transformer and line output stage is defective.
• Vertical foldover at bottom.
• Excessive horizontal size. E/W fault.
• Black bar. at top and bottom.
• Dead. LED blinks .
• Picture flashed red, then no picture. Sound OK.
• Line tearing after approx. 5-10 min. Multiple pictures.
• White screen. Flyback lines. Shuts down. after a few seconds. (PROFEX - CTV7050 information)
• No picture. Picture fragments are visible for a short time, then bright screen.
• Green flyback lines. (PROFEX - CTV7050 information)
• Switches to protection mode. after a few seconds.
• R325 reeks.
• At 4:3 PB picture collapses to 16:9 format. (CTV7050 PROFEX repair tip)
• Humming noise from transformer. when cold. (CTV7050 tip from PROFEX)
• Stretched picture. Picture size varies with picture content.
• Vertical collapse.
• Switches off. Standby LED flashes and starts automatically with program site 1.
• After locating a page, the upper line appears, the rest remains dark but after approx 3 mins. text is complete.
• Vertical bright stripe in picture, visible especially on dark pictures.
• Distorted picture. No TXT.
• Line output transistor arching.
• The appliance is dead, BU426 nad BU500 are short circuit, TDA4600 U/S-22nF is leaky.
• No HV. after a while.
• Reduced vertical size at bottom. when cold.
• Tripping.
• Start-up with green picture, red and blue colours are weak, audio OK.
• No line drive.
• No start-up. PSU pulsates.
• Deflection transformer fails.
• Flyback lines. at top.
• Disable child lock.
• No vertical deflection.
• PSU pulsates.
• Picture size is horizontally reduced with 6-8cm. Picture geometry OK.
• No functions. LED blinks briefly after switch on, then goes off.
• Green LED blinks at switch on Prog. +/-. Power supply pulsates.
• Picture without content with rainbow colours.
• No picture content, menu too pale , maybe E/W distortion.
• Dead. PSU beeps.
• No E/W correction.
• No picture.
• Three coloured stripes on upper picture edge.
• Very loud buzzing from scan coils. Picture OK. Buzzing noise disappears after a while.
• No picture. Retrace lines.
• Reduced horizontal size.
• No functions. (CTV7050 tips)
• Switches to standby. after a few seconds.
• Switches to standby.
• Horizontal stripe.
• Vertical deflection only approx. 10cm, apart on the top.
• Enter service mode.
• Field collapse. Intermittently horizontal line appears with three colours flickering.
• No red.
• Appliance snaps.
• Vertical lines.
• No OSD. No TXT.
• No function, LED does not light.
• Dark screen. Audio OK .
• No HV. Audio OK .
• No HV. after start-up. Audio OK .
• Picture shakes. at bottom (after warm-up). (service info for PROFEX -CTV7050)
• Horizontal stripe. via SCART.
• Shuts down. (CTV7050 tip from PROFEX)
• No vertical deflection, only diffuse brightness and flyback lines.
• PSU switches on, HV builds up, then switches off.
• SMD diode D302 defective.
• Line driver transistor Q302 is destroyed after seconds
• Line output transformer arcing.
• Vertical collapse. after a while.
• Vertical IC fails.
• Stuck in BG standard.
• No start-up from standby.
• Picture splutters when changing channels after some operating time.
• Text lines at top of scan.
• No picture. on upper half screen.
• No sound via scart or noise or sound of a terrestrial channel.