703100 / OTTOVERSAND [TV]

• Nicam Crackle.
• No NICAM sound.
• Pincushion distortion.
• Horizontal lines. Unstable picture.
• No STEREO sound.
• Low audio from right hand side loud speaker. Crackling scart socket.
• Reduced vertical deflection.
• No text although the channels flags are normal. (with circuit diagram extract)
• Picture turns red after a short while in operation. (OTTOVERSAND - 703100 information)
• One colour high.
• Switches to standby.
• Extreme field distortion. (picture attached) (703100 tip from OTTOVERSAND)
• Set only works after several attempts to switch on. Switch is ok. (+ extract of circuit diagram)
• Line doubling/distortion/striations. (picture attached)
• Faulty teletext. Channel flag and bar graphics drift aimlessly across the screen while the text is erratic with flashing white lines on the background. (with circuit diagram extract)
• No sound for the first half hour after switch on. (picture attached)
• No picture. Flyback lines. No audio. Raster OK .
• Intermittent or no colour. (with circuit diagram extract)
• Intermittent colour and saturation is low. (+ extract of circuit diagram)
• Lines in picture. at top. (part of circuit diagram displayed)
• Tuning is slightly off. Dark screen with zigzag lines. Intermittent flashes of chroma and sound mutes. (703100 tips)
• No vertical synchronisation.
• Set operated perfectly for an hour, then the sound would mute and controls wouldn't work. (picture attached)
• Set dead apart from a whine from the power supply. (part of circuit diagram displayed)
• Loss of sound.
• TXT flashes on screen after 1 hour. Loss of sync on TXT. (extract of circuit diagram attached)
• No voltages from PSU.
• Severe noises form PSU for approx. 5 sec, then switches off . Program display remains
• Picture twists horizontally causing E/W distortion when warm. (OTTOVERSAND - 703100 information)
• Picture folds over at sides. Then a vertical bar remains in the picture.
• Power supply overloaded and squealing.
• Intermittent black lines on right hand side of picture. (extract of circuit diagram attached)
• Stuck in standby. (extract of circuit diagram attached)
• Vertical stripes like strings of pearls in picture.
• No start-up. Squealing from PSU. (extract of circuit diagram attached)
• Red picture. Flyback lines.
• No picture or sound intermittently. Program display is present.
• Poor synchronisation. (with circuit diagram extract)
• Hissing noises after switch on
• Chirping. Line tearing. after a while.
• Excessive horizontal size. E/W fault. (picture attached)
• Q551 running very hot and blowing R567 after approx. 4hrs. (extract of circuit diagram attached)
• Muted audio. (extract of circuit diagram attached)
• Poor colour. (extract of circuit diagram attached) (service info for OTTOVERSAND -703100)
• No functions.
• Dent in right side of picture after a prolonged operating time (after 1.5hrs). After cooling down picture OK again. (with circuit diagram extract)
• Hum, crackling, and other secondary noises via headphones and loudspeaker with high volume and volume "0".
• No line drive. (picture attached)
• Dead after a burst of EHT.
• No blue.
• Comes on then switches to standby leaving three blobs of colour in the centre of screen. (+ extract of circuit diagram)
• Only program display. No standby display
• Intermittent line output stage operation. (extract of circuit diagram attached)
• Stripes, double lines and distorted picture. (extract of circuit diagram attached)
• No or intermittent loss of video signal. (extract of circuit diagram attached)
• Intermittently goes dead with loud whistling. (picture attached)
• Horizontal dark bars across the picture. (picture attached)
• No raster. (part of circuit diagram displayed)
• Sound and picture are missing, channel change ok. (with circuit diagram extract) (OTTOVERSAND - 703100 information)
• Line output transistor S/C, R567 O/C and D854 S/C. (part of circuit diagram displayed)
• Video seems off tune. (+ extract of circuit diagram) (703100 OTTOVERSAND repair tip)
• No channel tuning after channel 36. A horizontal bar runs through on the picture then search continues. Tunes the channels below channel 36.
• No blue after 30 mins. (part of circuit diagram displayed)
• White lines on top of screen.
• Poor vertical line across right side of picture.
• Intermittent colour. (part of circuit diagram displayed)
• Line tearing. Pincushion distortion. on the right. (+ extract of circuit diagram)
• No picture. Audio OK . (with circuit diagram extract)
• Black screen.
• No synchronisation. No picture. Shuts down. (extract of circuit diagram attached)
• Vibrating picture and horizontal lines. (picture attached)
• Distorted audio. on the left. (with circuit diagram extract)
• Intermittent audio. (with circuit diagram extract) (703100 tip from OTTOVERSAND)
• No colour sync.
• Cuts out when warm. Works well without the cabinet.
• No tuning.
• No picture (intermittently). (+ extract of circuit diagram) (703100 tips)
• No picture. (with circuit diagram extract)
• Saturated picture in red, green or blue. (part of circuit diagram displayed)
• Appliance hisses. No high voltage. Standby voltage is present. (picture attached)
• Poor colour. intermittently. (extract of circuit diagram 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. (picture attached)
• Blank raster. OSD OK .
• Bright lines on screen. (picture attached)
• No colour (intermittently).
• Defective or erratic oscillating colours.
• Appliance fizzes then width comes in. (with circuit diagram extract)
• Appliance squeaks very loud. No picture. No sound.
• Sound is slightly distorted. (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. (part of circuit diagram displayed)
• Distorted picture and poor synchronization via SCART. No colour via tuner.
• Dark screen.
• Switches off. No control possible. Program display OK.
• Snow on picture and low gain. (+ extract of circuit diagram)
• Intermittent whistling noise when set first switched on.
• Erratic colour. (picture attached)
• No or poor contrast. (picture attached)
• Noisy NICAM.
• No synchronisation via SCART and TV.
• No sync on OSD or text. Usually no text at all, just moving blank screen. (with circuit diagram extract)
• Dark picture.
• Intermittently picture impairment with noise.
• Sound muting and no function of the controls after an hour approx. (with circuit diagram extract)
• TV starts up, EHT starts up then cuts out. Channel display remains.
• Intermittently no line hold. (extract of circuit diagram attached)
• No synchronisation. (picture attached)
• Bad distortion, line doubling and horizontal striations were all present at once. (extract of circuit diagram attached)
• Fine lines on top of picture.
• Comes on for a short time. (with circuit diagram extract)
• Power supply squeaks, speaker hums and twitters. (+ extract of circuit diagram)
• Failure of line output transistor Q551 (2SD1441RL). (with circuit diagram extract)
• After working for a couple of minutes, picture sync is lost then the screen goes black. Power supply shuts down and squeals. (+ extract of circuit diagram)
• Intermittent audio. (extract of circuit diagram attached) (703100 OTTOVERSAND repair tip)
• Buzzing from PSU.
• No convergence.
• How to check main PSU.
• E/W fault. (extract of circuit diagram attached)
• No audio. No picture. (extract of circuit diagram attached)
• 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. (part of circuit diagram displayed)
• Line output stage is defective. Line BU is defective. After replacement the same fault reoccurs. (extract of circuit diagram attached)
• Vertical distortion. Horizontal deflection with vertical stripes and pairing effect.
• Faint line down right hand side of screen. (extract of circuit diagram attached)
• 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.
• Tuning goes off with ticking. (+ extract of circuit diagram)
• Occasionally picture and sound disappear. (with circuit diagram extract)
• Dark picture with test lines when cold.
• Coloured bars across screen. (with circuit diagram extract)
• Whistling in the power supply, depending on the load.
• Extremely weak contrast, controls have no effect. (extract of circuit diagram attached) (703100 tips)
• No function. Loud cracking from the main PSU. (service info for OTTOVERSAND -703100)
• Black screen. Display OK .
• Power supply starts up, pulsates 3-4 times and then goes into standby
• No text, channel flag drifting. (with circuit diagram extract)
• Elusive Parts.
• Controls go faulty after a while. (picture attached)
• Colour varies. (part of circuit diagram displayed)
• Bright red screen.
• No horizontal oscillation signal. Whistle from PSU often.
• After a few hours edges bow. (+ extract of circuit diagram)
• White flashes in picture and/or intermittent operation and/or horizontal sync dropout intermittently.
• No sound for the first half an hour. (part of circuit diagram displayed)
• No picture. Squealing from PSU. Audio OK . (+ extract of circuit diagram)
• Switches off by itself. after warm-up. (+ extract of circuit diagram)
• Line BU is S/C.
• Unstable OSG.
• At switch on picture is snowy, flashes, then OK. (extract of circuit diagram attached) (703100 OTTOVERSAND repair tip)
• No Nicam sound, neither Nicam nor mono symbol seen on display. (with circuit diagram extract)
• No display. No functions. No audio, only a dark blank raster. (+ extract of circuit diagram)
• Poor frame scan. (+ extract of circuit diagram)
• EHT fails within 2 secs after switch on.
• Reduced horizontal size. intermittently. (with circuit diagram extract)
• No picture. No sound. Standby LED lights up. If switched on with the RC, channel display appears and can be switched over.
• Flyback lines. at top.
• Lines in picture.
• Loss of text sync after 1 hour. (picture attached)
• Blue background on teletext and OSG but picture OK. (picture attached)
• Colour not right. (picture attached)
• Distorted speaker on right hand side.
• Line transistor BU508D fails again straight away immediately after switch on. (part of circuit diagram displayed)
• Chirping. (+ extract of circuit diagram)
• Picture right area is darker (shadowed) than rest of screen.
• Lines in picture. at bottom. (extract of circuit diagram attached)
• No channel storing. (+ extract of circuit diagram)
• Excessive brightness. No colour. (+ extract of circuit diagram)
• Line output transistor fails repeatedly. after start-up.
• No sound and picture. Channel switch over OK.
• IC801 intermittently blown. (extract of circuit diagram attached)
• No bar graphs. No TXT. TXT OK in mix. (extract of circuit diagram attached)
• East to West bowing. (extract of circuit diagram attached)
• Low colour amplitude. (part of circuit diagram displayed)
• Picture pulls to right hand side. (picture attached)
• Raster is blank, video, sound and display are missing and no remote control response. (picture attached) (703100 OTTOVERSAND repair tip)
• Blank raster. No RC functions. (extract of circuit diagram attached)
• Dead. (part of circuit diagram displayed)
• Blank raster. Audio OK .
• Shuts down (after a few seconds). Squealing from PSU.
• Horizontal lines in top half of picture when cold. Entire picture trembles.
• Smearing in picture.
• Flyback lines. at top (intermittently). (part of circuit diagram displayed)
• Foldover at top and picture vibrates.
• Vertical collapse. (picture attached)
• No audio from right hand side loud speaker. Crackling scart socket.
• Resistor R802 always blows. (extract of circuit diagram attached)
• Doesn't switch completely off from standby. Program display disappears. Standby LED lights.
• No picture. No sound. Raster OK. CRT-filament lights, blocked on channel 0.
• Intermittently dead. (extract of circuit diagram attached)
• No blue. after a while. (part of circuit diagram displayed)
• No TXT; picture unlocked until TXT button pressed or set to AV position. (part of circuit diagram displayed)
• No picture, no high voltage, power supply squeaks, sound present. (picture attached)
• Cannot be switched properly to standby, sound muted after pressing standby key on RC, programme display disappears and standby LED lit, picture still present.
• Strong chirping after switch on. No channel appears.
• Q551 fails again after a short time.
• Channels 1 and 4 intermittently not tuneable - frequency not lockable.
• Shuts down (intermittently). (+ extract of circuit diagram)
• PSU pulsates.
• Line BU fails at irregular intervals. (OTTOVERSAND - 703100 information)
• No audio for 10 mins. (part of circuit diagram displayed)
• No vertical deflection. (extract of circuit diagram attached)
• If left on teletext, white beating bars appear over text.
• 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.
• Switches to standby (after start-up). (extract of circuit diagram attached)
• Poor sync and colour. Picture becomes better after a while but with horizontal coloured bars. Hum in audio.
• Power supply does not start up. Standby LED does not light up.
• Ragged raster. Picture lines run through each other.
• Screen doesn't light up. Sound OK.
• No TXT, unstable channel number. (with circuit diagram extract)
• Exits standby and stops. Channel no. remains lit.
• No HV.
• Distorted audio. (picture attached)
• Intermittently flickers and powers down. (part of circuit diagram displayed) (703100 OTTOVERSAND repair tip)
• Memory IC defective.
• Noisy NICAM.
• No luminance signal. Chroma is present.
• Dead. Channel display on . (picture attached)
• No picture (intermittently). Audio OK . (part of circuit diagram displayed)
• Picture width quivers.
• RC problems. (picture attached)
• Shuts down. after a few minutes. (extract of circuit diagram attached)
• Stations cannot be tuned in properly. (extract of circuit diagram attached)
• Fizzle noise after turning on.
• Whistling at start-up. Programme number display functions.
• Reduced vertical size.
• 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. (extract of circuit diagram attached)
• Intermittent loss of tuning memory.
• Switches to protection mode (after a few seconds). (+ extract of circuit diagram)
• After approx 1 hour the picture becomes approx 3cm too small at the right edge.
• Whistle from speakers. Changes when adjusting contrast and/or brightness. Also fine horizontal lines in picture. (picture attached)
• Poor picture. Low contrast. (part of circuit diagram displayed)
• Squeals at switch on then dies except for channel number indicator. (part of circuit diagram displayed)
• Erratic colours. (part of circuit diagram displayed)
• Picture is shifted inwards at the right side. Fault occurs after approx 15 mins.
• Intermittently picture disappears leaving dark grey raster. (extract of circuit diagram attached)
• Line output transistor fails repeatedly. (with circuit diagram extract) (703100 tips)
• Chirping. Display OK .
• Repeated failure of field output chip IC451 (AN5521).
• Fuzzy picture. (extract of circuit diagram attached)
• PSU whistling. Channel indicator OK.
• Starts up, then no function from remote or main controls.
• Intermittent colour after a few hours, flickers off then on again. On maximum colour setting line paired more so on reds. (picture attached)
• Distorted audio from left hand channel.
• Power supply hissing for approx 3 secs at start up and goes to safety mode. Programme display visible all the time.
• Elusive Parts.
• White bar (approx. 10cm) on top of the picture.
• Tuning drifts (intermittently).
• Squealing from PSU. (part of circuit diagram displayed)
• Picture and sound are missing, channel change ok.
• Flashover voltage in PSU.
• Picture sync goes then picture disappears. (extract of circuit diagram attached)
• Horizontal tearing. (703100 tip from OTTOVERSAND)
• Q552 (2SD1441) S/C. (+ extract of circuit diagram)
• No colour, or colour flashes on and off. (extract of circuit diagram attached)
• No luminance but chrominance in the display.
• Intermittently no or low audio and crackling from right speaker. Sound OK on SCART socket.
• Horizontal lines at the top part of the picture. OSD insertions slowly run vertically through the picture.
• Blue screen only. No sound but channel indicator is working & will change channels when selected.
• Squealing from PSU (intermittently).
• Picture vibrates. Black lines in picture, especially in top half. (+ extract of circuit diagram) (703100 tips)
• No sound. No picture. Whistle when pressing mains switch.
• Whistling from PSU. intermittently. (part of circuit diagram displayed)
• No brightness. Audio OK .
• Reduced horizontal size. (extract of circuit diagram attached)
• Intermittent colour and insufficient colour at max setting of colour control. (part of circuit diagram displayed)
• Intermittently whistles. (part of circuit diagram displayed)
• Dark picture via S-VHS input.
• Switches off by itself. after a few minutes.
• Looks like text line at top 3" of picture.
• Powers up momentarily. (+ extract of circuit diagram)
• From standby will not switch on, LED display comes on. Standby LED stays on. (with circuit diagram extract)
• No audio.
• Poor picture and colour halo at sides of screen.
• No picture. No sound. Squeals. Channel numbers lit. (picture attached)
• Colour flickers.
• Tuning problems, would drift off tune after some time. (picture attached)
• Tries to switch on for 1 sec and then stops. LED and channel no. remain lit. (with circuit diagram extract) (703100 tips)
• No functions. Display OK . (picture attached)
• Picture goes red.
• Sound is distorted from either left or right hand channel. (picture attached)
• Faulty TXT. (extract of circuit diagram attached)
• Squeal from PSU. Channel LED OK.
• TV goes into safety mode at switch-on.
• After turning on the set goes to standby but the LED will not light. (+ extract of circuit diagram)
• Unlocked colour. (with circuit diagram extract)
• Picture full with stripes, when adjusting the horizontal size the fault disappears.
• Power supply running, but no HT on line output transistor.
• 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)
• After 3-4 hours a faint line appears at the top of the screen. (with circuit diagram extract)
• Intermittent colour, sometimes flashes orange, green then blue then disappears altogether. (+ extract of circuit diagram)
• When appliance is warm tuning problems occur. (+ extract of circuit diagram)
• Unstable picture. Hum in audio. Colour flickers.
• Dead. Whining. Channel numbers OK. (picture attached)
• One colour missing.
• 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.
• No start-up (intermittently). (with circuit diagram extract)
• Picture width quivers. Intermittently picture drops out. (703100 OTTOVERSAND repair tip)
• Starts up, line transformer starts up then cuts out. Channel display remains.
• Intermittent whistle. (extract of circuit diagram attached)
• Frame distortion, line doubling. (part of circuit diagram displayed) (OTTOVERSAND - 703100 information)
• Horizontal green and magenta bars running through picture. (with circuit diagram extract)
• Poor picture, contrast being very low irrespective of the customer control setting. (+ extract of circuit diagram)
• Mainly dark screen with zigzag lines. Some signs of chroma flash up intermittently and the sound is muted. (extract of circuit diagram attached)
• Line output stage transistor fails after a while.
• No TXT. (part of circuit diagram displayed)
• No sound, blank raster and unlocked channel numbers.
• Dead, channel number lit; may come on for short time then turns off but neon display remains. (+ extract of circuit diagram)
• Defective or erratically oscilating colours.
• Loss of text sync/no channel identification lock. (with circuit diagram extract)
• No E/W correction.
• E/W fault (intermittently). (with circuit diagram extract) (service info for OTTOVERSAND -703100)
• No control possible after 10 secs.
• No synchronisation. in TXT. (+ extract of circuit diagram)
• PSU whistles.
• At switch on the sound mutes. The effect lasts for only about ten minutes and will not return until the next day. (extract of circuit diagram attached)
• Picture bows in from the sides intermittently or permanent. (+ extract of circuit diagram)
• When warm picture shift to the right then line oscillation is defective.
• Red, green or blue picture. (extract of circuit diagram attached)
• LED briefly lit after switch on, then progr. 1 or 2 starts. No other entries possible. No picture and no sound.
• Switches to protection mode (after start-up). (part of circuit diagram displayed) (OTTOVERSAND - 703100 information)
• Red picture with flyback lines.
• Bright red raster.
• No start-up. LED blinks .
• No audio. No picture. Channel indicator OK.
• No light (Y signal) in reception via tuner nor via SCART input. TXT and OSD OK.