774156 / OTTOVERSAND [TV]

• Picture size varies with picture content. (OTTOVERSAND - 774156 information)
• Switches on for a short time and then switches off after approx 0.5 secs. OSD remains.
• Poor, faded picture.
• Dead, channel indicator LED lit and momentary squeak from power supply at switch on.
• Powers up for one second then shuts down. LED and channel no. are still displayed.
• Non linear top of frame scan and/or portion of scan missing. Possibly flyback lines.
• Orange picture.
• No picture.
• No colour. Picture only black and white in digital mode.
• Nicam Crackle.
• Dead. Channel display on . (774156 tips)
• Dead. (774156 OTTOVERSAND repair tip)
• Bowed picture.
• No audio. OSD display unlocked and drifts from bottom right hand side up to top left hand side. No picture. (OTTOVERSAND - 774156 information)
• No functions.
• Dead. Display OK . (774156 tip from OTTOVERSAND)
• Line output transistor S/C. (774156 tip from OTTOVERSAND)
• Blank screen. No OSD. No TXT.
• Squealing noise.
• No audio. No picture. Display OK .
• No TXT. No bar graphs. TXT OK in mix.
• No colour.
• Shuts down.
• No picture for 30 minutes.
• No signal. Slow and erratic RC functions.
• No vertical deflection.
• Switches to standby.
• Black screen. Audio OK . (774156 tips)
• PSU whistles for a short time after switch on, program display remains. Previously E/W fault occasionally.
• Creaking or sizzling sound, otherwise no function.
• Flyback lines. on upper half screen.
• PSU chirps.
• Intermittently bright red.
• Bright raster. Flyback lines.
• Q551 runs hot and R567 blows after 4 hours.
• Unlocked OSG, picture OK.
• Smeary red content of picture, red cut-off and drive controls critical.
• device starts up for short while, HSP drops out display ok.
• No audio for 10 mins.
• SD1441 (horizontal deflection) is S/C.
• Intermittently no line hold.
• 4 horizontal lines across upper half screen.
• Stuck in standby. No functions. Display OK .
• Comes on for a short time. (service info for OTTOVERSAND -774156)
• Resistor (R567) in the HT feed to the line output stage blows after a few hours.
• Line scanning transistor fails.
• Speckled white bands.
• Top of picture has stretched but corrects itseft when warmed.
• Whistling and horizontal lines on picture.
• Leaky line output transistor and fusible feed resistor O/C.
• Excessive vertical size. Vertical foldover at top.
• Line squiggles/osc noise from scan coils.
• Ticking noise. (OTTOVERSAND - 774156 information)
• No sync on teletext.
• Brief current consumption after switch on. Display OK.
• After a few hours, right hand side of picture creeps in by couple of inches with slight E/W distortion.
• After switching on with the remote control or mains switch short chirping noise in the PSU. PSU then switches off, only the program display still functions.
• Sparkles then goes off.
• Noise in one channel.
• No E-E just blank raster. Scart input OK.
• Stays on briefly, then switches to standby leaving three blobs of colour in the middle of the screen.
• Vertical collapse. (774156 OTTOVERSAND repair tip)
• Cogging on verticals.
• No picture. No audio with OSD display unlocked and drifts from bottom right hand side up to top left hand side.
• No sound in HF. OK in AV.
• No audio.
• Red picture. Flyback lines.
• Line output transistor fails repeatedly.
• No picture. Channel display on . (service info for OTTOVERSAND -774156)
• Picture has a faint line of shading down right hand side with low brightness or in the AV mode.
• No focus.
• No picture (intermittently). Audio OK .
• Right hand side cramped.
• No sound from cold.
• Unlocked OSD and bar graphs. Irregular TXT.
• No RC functions.
• Intermittent bright blue or green picture. (774156 tips)
• Vertical bars run down the left side of the screen in one third of the picture. This is clearest on AV. We have already tried to level off 12V and 205V slightly.
• Intermittently flickers and powers off.
• Irregular horizontal lines. Vertical outlines tear.
• Low brightness.
• Faint line on raster.
• Shuts down. after start-up. Channel display on .
• Shuts down (after start-up).
• No luminance signal. Chroma is present.
• Orange picture.
• Failure of line output transistor Q551 (2SD1441RL).
• No horizontal deflection.
• Squealing from PSU.
• No start-up. Squealing from PSU.
• Goes bright red then trips off.
• Switches off by itself. intermittently.
• No TXT.
• Line switch breaks down without any apparent reason.
• Right side of screen is shaded. Low lighting.
• Switches to protection mode. Whistling from PSU.
• Intermittent teletext and occasional bar graph on screen.
• Squeals when switched on then goes dead. Channel LED lit.
• IC801 defective again after several months.
• E/W fault. (774156 tip from OTTOVERSAND)