703240 / OTTOVERSAND [TV]

• Chirping. Display OK . (OTTOVERSAND - 703240 information)
• Intermittent colour and saturation is low. (part of circuit diagram displayed) (703240 tip from OTTOVERSAND)
• If left on teletext, white beating bars appear over text.
• Video seems off tune. (part of circuit diagram displayed)
• Dent in right side of picture after a prolonged operating time (after 1.5hrs). After cooling down picture OK again. (+ extract of circuit diagram)
• Tuning is slightly off. Dark screen with zigzag lines. Intermittent flashes of chroma and sound mutes.
• No synchronisation. (picture attached)
• Line output stage transistor fails after a while.
• Picture full with stripes, when adjusting the horizontal size the fault disappears.
• Intermittently whistles. (picture attached)
• Picture pulls to right hand side. (+ extract of circuit diagram)
• Power supply running, but no HT on line output transistor. (OTTOVERSAND - 703240 information)
• Colour not right. (picture attached)
• Flyback lines. at top (intermittently). (+ extract of circuit diagram)
• Dead. Whining. Channel numbers OK. (+ extract of circuit diagram)
• Line tearing. Pincushion distortion. on the right. (with circuit diagram extract)
• Intermittent line output stage operation. (with circuit diagram extract)
• No TXT. (extract of circuit diagram attached)
• Intermittent colour. (+ extract of circuit diagram)
• Power supply does not start up. Standby LED does not light up.
• No start-up. LED blinks .
• Flyback lines. at top.
• Fuzzy picture. (part of circuit diagram displayed)
• No synchronisation. in TXT. (part of circuit diagram displayed)
• After working for a couple of minutes, picture sync is lost then the screen goes black. Power supply shuts down and squeals. (with circuit diagram extract)
• Intermittently flickers and powers down. (part of circuit diagram displayed)
• No brightness. Audio OK .
• Low audio from right hand side loud speaker. Crackling scart socket.
• Channels 1 and 4 intermittently not tuneable - frequency not lockable.
• Horizontal dark bars across the picture. (picture attached)
• Intermittently picture disappears leaving dark grey raster. (+ extract of circuit diagram) (OTTOVERSAND - 703240 information)
• No Nicam sound, neither Nicam nor mono symbol seen on display. (with circuit diagram extract)
• Switches off by itself. after warm-up. (picture attached)
• Poor picture and colour halo at sides of screen.
• Poor sync and colour. Picture becomes better after a while but with horizontal coloured bars. Hum in audio.
• No bar graphs. No TXT. TXT OK in mix. (picture attached)
• Fizzle noise after turning on.
• Poor vertical line across right side of picture.
• No sound. No picture. Whistle when pressing mains switch.
• Blue screen only. No sound but channel indicator is working & will change channels when selected.
• TV goes into safety mode at switch-on.
• Intermittently no or low audio and crackling from right speaker. Sound OK on SCART socket. (OTTOVERSAND - 703240 information)
• No picture. No sound. Raster OK. CRT-filament lights, blocked on channel 0.
• Intermittently no line hold. (picture attached)
• Frame distortion, line doubling. (part of circuit diagram displayed)
• No or poor contrast. (with circuit diagram extract)
• White flashes in picture and/or intermittent operation and/or horizontal sync dropout intermittently.
• Line doubling/distortion/striations. (with circuit diagram extract)
• Severe noises form PSU for approx. 5 sec, then switches off . Program display remains
• Dead. Channel display on . (with circuit diagram extract)
• Elusive Parts.
• Poor picture, contrast being very low irrespective of the customer control setting. (with circuit diagram extract)
• Whistle from speakers. Changes when adjusting contrast and/or brightness. Also fine horizontal lines in picture. (extract of circuit diagram attached)
• Tuning drifts (intermittently).
• No HV.
• Red, green or blue picture. (extract of circuit diagram attached) (service info for OTTOVERSAND -703240)
• Power supply starts up, pulsates 3-4 times and then goes into standby
• Distorted audio. (picture attached)
• East to West bowing. (with circuit diagram extract)
• Picture width quivers. Intermittently picture drops out.
• Unstable picture. Hum in audio. Colour flickers.
• Distorted audio. on the left. (with circuit diagram extract)
• Switches to standby (after start-up). (with circuit diagram extract)
• Poor picture. Low contrast. (extract of circuit diagram attached)
• No picture (intermittently). (picture attached)
• Exits standby and stops. Channel no. remains lit.
• No synchronisation. No picture. Shuts down. (part of circuit diagram displayed) (703240 OTTOVERSAND repair tip)
• Cuts out when warm. Works well without the cabinet.
• Reduced vertical deflection.
• Colour flickers.
• Erratic colour. (extract of circuit diagram attached) (703240 OTTOVERSAND repair tip)
• Memory IC defective. (703240 tip from OTTOVERSAND)
• Poor colour. intermittently. (extract of circuit diagram attached) (703240 tips)
• No horizontal oscillation signal. Whistle from PSU often.
• Approx. 5 horizontal bars from top of picture spaced about 8mm apart gradually fading out. note; If height reduced fault worsens and picture jitters with even more bars. (picture attached) (service info for OTTOVERSAND -703240)
• No voltages from PSU.
• PSU whistling. Channel indicator OK.
• Coloured bars across screen. (+ extract of circuit diagram)
• No picture. Squealing from PSU. Audio OK . (part of circuit diagram displayed)
• Intermittently picture impairment with noise.
• White lines on top of screen.
• Intermittent colour, sometimes flashes orange, green then blue then disappears altogether. (with circuit diagram extract) (OTTOVERSAND - 703240 information)
• Failure of line output transistor Q551 (2SD1441RL). (extract of circuit diagram attached)
• Picture and sound are missing, channel change ok.
• No channel tuning after channel 36. A horizontal bar runs through on the picture then search continues. Tunes the channels below channel 36.
• Blank raster. No RC functions. (picture attached) (703240 tips)
• Dark picture via S-VHS input.
• Mainly dark screen with zigzag lines. Some signs of chroma flash up intermittently and the sound is muted. (with circuit diagram extract)
• No blue. after a while. (extract of circuit diagram attached)
• No picture (intermittently). Audio OK . (+ extract of circuit diagram)
• Whistling from PSU. intermittently. (extract of circuit diagram attached)
• Dead. (part of circuit diagram displayed)
• Switches off by itself. after a few minutes.
• No text although the channels flags are normal. (with circuit diagram extract)
• Hum, crackling, and other secondary noises via headphones and loudspeaker with high volume and volume "0".
• No audio. No picture. Channel indicator OK.
• Reduced horizontal size. (with circuit diagram extract)
• Snow on picture and low gain. (part of circuit diagram displayed)
• EHT fails within 2 secs after switch on.
• Black screen. Display OK .
• Loss of text sync after 1 hour. (picture attached)
• E/W fault. (with circuit diagram extract)
• Distorted audio from left hand channel.
• White bar (approx. 10cm) on top of the picture.
• Stripes, double lines and distorted picture. (+ extract of circuit diagram)
• Picture is shifted inwards at the right side. Fault occurs after approx 15 mins.
• Sound is distorted from either left or right hand channel. (+ extract of circuit diagram)
• No line drive. (+ extract of circuit diagram)
• Powers up momentarily. (+ extract of circuit diagram) (703240 tips)
• Noisy NICAM.
• Vertical stripes like strings of pearls in picture.
• Faulty teletext. Channel flag and bar graphics drift aimlessly across the screen while the text is erratic with flashing white lines on the background. (part of circuit diagram displayed)
• No vertical deflection. (picture attached)
• Poor synchronisation. (part of circuit diagram displayed)
• Q551 fails again after a short time.
• No control possible after 10 secs.
• No audio for 10 mins. (part of circuit diagram displayed)
• No picture. No sound. Squeals. Channel numbers lit. (picture attached)
• Power supply squeaks, speaker hums and twitters. (extract of circuit diagram attached)
• Starts up, line transformer starts up then cuts out. Channel display remains.
• Loss of text sync/no channel identification lock. (+ extract of circuit diagram)
• Dead, channel number lit; may come on for short time then turns off but neon display remains. (picture attached)
• Whistling at start-up. Programme number display functions.
• RC problems. (part of circuit diagram displayed)
• Smearing in picture.
• Chirping. (picture attached)
• Distorted speaker on right hand side.
• Q552 (2SD1441) S/C. (with circuit diagram extract)
• No NICAM sound. (OTTOVERSAND - 703240 information)
• Picture turns red after a short while in operation.
• Line BU fails at irregular intervals.
• Stations cannot be tuned in properly. (with circuit diagram extract)
• Sound muting and no function of the controls after an hour approx. (part of circuit diagram displayed)
• How to check main PSU.
• Red picture with flyback lines.
• Squealing from PSU. (extract of circuit diagram attached)
• Tuning goes off with ticking. (+ extract of circuit diagram)
• No picture. Audio OK . (part of circuit diagram displayed)
• The sound is normal but only a poor washed out picture, i.e. no contrast. The picture can sometimes hardly be seen, consisting of just a slight movement of shaded greys on the raster. Or the screen might be completely blanked out. (with circuit diagram extract)
• Line output stage is defective. Line BU is defective. After replacement the same fault reoccurs. (picture attached)
• Reduced horizontal size. intermittently. (picture attached)
• Appliance hisses. No high voltage. Standby voltage is present. (+ extract of circuit diagram)
• Blank raster. OSD OK .
• PSU whistles.
• Picture vibrates. Black lines in picture, especially in top half. (picture attached)
• At switch on the sound mutes. The effect lasts for only about ten minutes and will not return until the next day. (part of circuit diagram displayed)
• TV starts up, EHT starts up then cuts out. Channel display remains.
• Chirping. Line tearing. after a while.
• Comes on for a short time. (+ extract of circuit diagram)
• Intermittent audio. (extract of circuit diagram attached)
• No sound, blank raster and unlocked channel numbers.
• Red picture. Flyback lines.
• No tuning.
• Switches to standby.
• No vertical synchronisation. (service info for OTTOVERSAND -703240)
• No audio.
• Bad distortion, line doubling and horizontal striations were all present at once. (extract of circuit diagram attached)
• Shuts down (intermittently). (+ extract of circuit diagram)
• Intermittent audio. (picture attached)
• Reduced vertical size.
• At switch on picture is snowy, flashes, then OK. (with circuit diagram extract)
• Dead after a burst of EHT.
• Foldover at top and picture vibrates.
• No channel storing. (part of circuit diagram displayed)
• No picture. (+ extract of circuit diagram) (service info for OTTOVERSAND -703240)
• No convergence.
• Distorted picture and poor synchronization via SCART. No colour via tuner.
• Intermittently dead. (part of circuit diagram displayed)
• Intermittent whistle. (part of circuit diagram displayed)
• No synchronisation via SCART and TV.
• When appliance is warm tuning problems occur. (extract of circuit diagram attached) (service info for OTTOVERSAND -703240)
• Horizontal tearing.
• Defective or erratically oscilating colours.
• Text fault. Channel flag is present and stable, but there are no bar graphs for colour, sound etc. When the set is switched to the teletext mix mode, a perfect text display is produced. (picture attached)
• Sound is slightly distorted. (picture attached)
• Line output transistor fails repeatedly. after start-up.
• Muted audio. (+ extract of circuit diagram)
• Picture twists horizontally causing E/W distortion when warm.
• Loss of sound. (703240 tip from OTTOVERSAND)
• Low colour amplitude. (with circuit diagram extract)
• No E/W correction.
• Shuts down. after a few minutes. (picture attached)
• No sync on OSD or text. Usually no text at all, just moving blank screen. (+ extract of circuit diagram)
• No luminance signal. Chroma is present.
• Lines in picture. at top. (+ extract of circuit diagram) (703240 tips)
• Stuck in standby. (+ extract of circuit diagram)
• Intermittent or no colour. (with circuit diagram extract)
• Intermittent colour after a few hours, flickers off then on again. On maximum colour setting line paired more so on reds. (with circuit diagram extract)
• Starts up, then no function from remote or main controls.
• Power supply hissing for approx 3 secs at start up and goes to safety mode. Programme display visible all the time.
• After approx 1 hour the picture becomes approx 3cm too small at the right edge.
• Line transistor BU508D fails again straight away immediately after switch on. (with circuit diagram extract)
• Faint line down right hand side of screen. (+ extract of circuit diagram)
• Doesn't switch completely off from standby. Program display disappears. Standby LED lights.
• Excessive brightness. No colour. (picture attached)
• Dark screen.
• Set operated perfectly for an hour, then the sound would mute and controls wouldn't work. (part of circuit diagram displayed)
• No or intermittent loss of video signal. (part of circuit diagram displayed)
• Elusive Parts.
• No functions. Display OK . (with circuit diagram extract)
• Picture folds over at sides. Then a vertical bar remains in the picture.
• After 3-4 hours a faint line appears at the top of the screen. (part of circuit diagram displayed)
• No text, channel flag drifting. (part of circuit diagram displayed)
• No picture. Flyback lines. No audio. Raster OK .
• Looks like text line at top 3" of picture.
• Picture sync goes then picture disappears. (extract of circuit diagram attached)
• Controls go faulty after a while. (extract of circuit diagram attached)
• Line output transistor S/C, R567 O/C and D854 S/C. (with circuit diagram extract)
• Unstable OSG.
• Intermittent whistling noise when set first switched on.
• Saturated picture in red, green or blue. (+ extract of circuit diagram)
• Lines in picture.
• Tries to switch on for 1 sec and then stops. LED and channel no. remain lit. (extract of circuit diagram attached)
• Extreme field distortion. (with circuit diagram extract)
• Picture not locked and/or no text, will lock if the text button is pressed or set is put into AV then back to TV.
• Noisy NICAM.
• No sound for the first half hour after switch on. (part of circuit diagram displayed)
• Pincushion distortion.
• Appliance squeaks very loud. No picture. No sound.
• Tuning problems, would drift off tune after some time. (picture attached)
• No raster. (extract of circuit diagram attached)
• Shuts down (after a few seconds). Squealing from PSU.
• Set only works after several attempts to switch on. Switch is ok. (part of circuit diagram displayed)
• Horizontal lines at the top part of the picture. OSD insertions slowly run vertically through the picture.
• Bright red raster.
• No display. No functions. No audio, only a dark blank raster. (picture attached)
• Vertical distortion. Horizontal deflection with vertical stripes and pairing effect.
• Dark picture.
• Erratic colours. (+ extract of circuit diagram)
• Q551 running very hot and blowing R567 after approx. 4hrs. (part of circuit diagram displayed)
• No sound for the first half an hour. (part of circuit diagram displayed)
• Vibrating picture and horizontal lines. (picture attached) (703240 tip from OTTOVERSAND)
• Occasionally picture and sound disappear. (+ extract of circuit diagram)
• Vertical collapse. (extract of circuit diagram attached)
• Repeated failure of field output chip IC451 (AN5521).
• Switches off. No control possible. Program display OK.
• No function. Loud cracking from the main PSU.
• Resistor R802 always blows. (part of circuit diagram displayed)
• Switches to protection mode (after start-up). (+ extract of circuit diagram)
• Squeals at switch on then dies except for channel number indicator. (part of circuit diagram displayed)
• No colour, or colour flashes on and off. (picture attached) (703240 tips)
• No luminance but chrominance in the display.
• After a few hours edges bow. (picture attached)
• No audio from right hand side loud speaker. Crackling scart socket.
• Bright lines on screen. (extract of circuit diagram attached)
• No TXT, unstable channel number. (extract of circuit diagram attached)
• Poor colour. (part of circuit diagram displayed)
• Strong chirping after switch on. No channel appears.
• Extremely weak contrast, controls have no effect. (with circuit diagram extract)
• No blue after 30 mins. (extract of circuit diagram attached)
• No picture. No sound. Standby LED lights up. If switched on with the RC, channel display appears and can be switched over.
• Bright red screen.
• No colour sync.
• No STEREO sound.
• Intermittent loss of tuning memory.
• Faulty TXT. (+ extract of circuit diagram)
• No functions.
• Blank raster. Audio OK .
• Intermittently goes dead with loud whistling. (picture attached)
• After about half an hour's use and when a different channel is selected, the channel information derived from the text flashes unlocked across the screen. There is also loss of teletext synchronisation. (part of circuit diagram displayed)
• Line BU is S/C.
• Buzzing from PSU.
• No blue.
• Power supply overloaded and squealing.
• Colour varies. (part of circuit diagram displayed)
• Poor frame scan. (extract of circuit diagram attached)
• When warm picture shift to the right then line oscillation is defective.
• Appliance fizzes then width comes in. (part of circuit diagram displayed)
• Squealing from PSU (intermittently).
• Flashover voltage in PSU.
• Picture goes red. (703240 tips)
• PSU pulsates.
• Picture bows in from the sides intermittently or permanent. (+ extract of circuit diagram)
• No light (Y signal) in reception via tuner nor via SCART input. TXT and OSD OK.
• Picture width quivers.
• Intermittent black lines on right hand side of picture. (picture attached)
• Hissing noises after switch on
• After turning on the set goes to standby but the LED will not light. (picture attached)
• Raster is blank, video, sound and display are missing and no remote control response. (part of circuit diagram displayed)
• Excessive horizontal size. E/W fault. (with circuit diagram extract) (703240 tip from OTTOVERSAND)
• Horizontal lines in top half of picture when cold. Entire picture trembles.
• Nicam Crackle.
• Appliance blocks occasionally, all basic values are set to minimum, all additional displays (stereo, three-dimensional sound etc.) light up. If the main switch is switched off then on again then everything is ok.
• Cannot be switched properly to standby, sound muted after pressing standby key on RC, programme display disappears and standby LED lit, picture still present.
• No start-up. Squealing from PSU. (picture attached)
• From standby will not switch on, LED display comes on. Standby LED stays on. (picture attached)
• No picture or sound intermittently. Program display is present. (OTTOVERSAND - 703240 information)
• Set dead apart from a whine from the power supply. (+ extract of circuit diagram)
• No sound and picture. Channel switch over OK.
• Picture right area is darker (shadowed) than rest of screen.
• Intermittent colour and insufficient colour at max setting of colour control. (+ extract of circuit diagram)
• Comes on then switches to standby leaving three blobs of colour in the centre of screen. (+ extract of circuit diagram)
• Defective or erratic oscillating colours.
• One colour high. (703240 tip from OTTOVERSAND)
• Ragged raster. Picture lines run through each other.
• Squeal from PSU. Channel LED OK.
• After about four hours operation the safety resistor R567 in the HT feed to the line output stage blows. This is accompanied by various shrieks and whistles. (picture attached)
• One colour missing.
• Screen doesn't light up. Sound OK.
• No picture. No sound. Standby LED lights up. If switched on with RC, program display appears and it cannot be switched over. Runs ok for 4 hours acc to customer.
• Switches to protection mode (after a few seconds). (part of circuit diagram displayed)
• No audio. No picture. (part of circuit diagram displayed)
• Dark picture with test lines when cold.
• No colour (intermittently).
• Fine lines on top of picture.
• Sound and picture are missing, channel change ok. (picture attached)
• TXT flashes on screen after 1 hour. Loss of sync on TXT. (extract of circuit diagram attached)
• No start-up (intermittently). (picture attached)
• Blue background on teletext and OSG but picture OK. (with circuit diagram extract)
• Whistling in the power supply, depending on the load.
• Line output transistor fails repeatedly. (with circuit diagram extract)
• Horizontal lines. Unstable picture.
• IC801 intermittently blown. (with circuit diagram extract)
• LED briefly lit after switch on, then progr. 1 or 2 starts. No other entries possible. No picture and no sound.
• Only program display. No standby display
• Unlocked colour. (part of circuit diagram displayed)
• No picture, no high voltage, power supply squeaks, sound present. (picture attached) (OTTOVERSAND - 703240 information)
• No TXT; picture unlocked until TXT button pressed or set to AV position. (part of circuit diagram displayed)
• Black screen. (service info for OTTOVERSAND -703240)
• E/W fault (intermittently). (part of circuit diagram displayed) (OTTOVERSAND - 703240 information)
• Lines in picture. at bottom. (with circuit diagram extract)
• Horizontal green and magenta bars running through picture. (+ extract of circuit diagram)