704026 / OTTOVERSAND [TV]

• Horizontal stripe. (+ extract of circuit diagram)
• Picture shifted vertically.
• Repeated failure of CRT.
• Destruction of the power supply BU. (part of circuit diagram displayed)
• Pulsating, no start up. (with circuit diagram extract)
• Poor RC sensitivity.
• Appliance works for 4 hours and then cuts out completely.
• Starts, but only raster. Display shows "F3". (part of circuit diagram displayed)
• Horizontal stripe. intermittently. (+ extract of circuit diagram)
• Wavy picture. via AV.
• Flash over on picture tube print.
• Noise in picture. (part of circuit diagram displayed)
• No horizontal synchronisation. intermittently. (picture attached)
• When warm, picture foldover and the line BU blows. (extract of circuit diagram attached)
• Starts up again then clicks after a few mins. PSU faled again. (with circuit diagram extract)
• Spare part info: Value of C2546 and C2545 near line output transformer.
• Picture pulsates on white background.
• Works correctly but power supply BUT11 blows after 3 weeks. (with circuit diagram extract) (704026 OTTOVERSAND repair tip)
• No signal on the BUT11AF collector. (extract of circuit diagram attached)
• Line output transistor fails repeatedly. intermittently. (picture attached)
• TV starts, has raster but no image and no sound. Display shows "FO". (picture attached)
• Does not switch on from standby. LED blinks and goes off or changes to red and then no more functions.
• Appliance only functions until the 120V is reached with the variac. When the mains voltage is increased the appliance fails. (+ extract of circuit diagram)
• Green picture. after a while. (extract of circuit diagram attached)
• Excessive horizontal size. Picture size varies with picture content. (part of circuit diagram displayed)
• Intermittent colour.
• No picture. No brightness. No sound. Picture tube filament on.
• 5.1V incorrect. (extract of circuit diagram attached)
• Poor linearity. (part of circuit diagram displayed)
• Tuning does not function, drifts, raster doubles up. Vertical sychronisation fault. (+ extract of circuit diagram)
• Colour blobs in the picture.
• When cold, picture takes approx 2.5 mins to appear instead of 15 secs. When warm it takes 20 secs. (with circuit diagram extract)
• Distorted picture. (extract of circuit diagram attached)
• Power supply failure. (extract of circuit diagram attached)
• No TXT, just lines on screen. (704026 tips)
• BU508, Q7593 and Q7594 are defective. (extract of circuit diagram attached)
• Spare part info: values of C2546, C2547 and C2545, located on collector of T7545. (+ extract of circuit diagram)
• Ragged verticals.
• Start with interfering voltage. (extract of circuit diagram attached)
• E-W output stage fails as soon as the appliance is switched on. Fuse 1534 (315mA) also fails. (extract of circuit diagram attached)
• No picture, only horizontal stripe on top. Picture appears only after a long while. Then picture collapses to a horizontal stripe in the centre.
• No functions. LED lit. . (extract of circuit diagram attached) (OTTOVERSAND - 704026 information)
• Excessive red.
• Goes to blank screen with unlocked TXT lines when TXT selected.
• Switches on for a few secs with extreme brightness. No picture. Sound OK. Goes into safety mode immediately after. (704026 tips)
• Occasionally picture seems to be coded on all the channels especially when cold. (part of circuit diagram displayed)
• Vertical foldover at bottom. (picture attached)
• Line pairing at top half of the picture (with circuit diagram extract)
• Local dooming. (picture attached)
• Blurry picture.
• No TXT. Intermittent green dots or lines through picture. Black screen.
• Connection of the loop system to the TV.
• 148V does not go pass 20V. (picture attached)
• No OSD. intermittently. (part of circuit diagram displayed)
• Over-voltage circuit active. (picture attached)
• Goes dead when switched to standby by RC. No standby LED. Switching on and off at mains, restores normal functions (picture attached) (704026 tip from OTTOVERSAND)
• Picture collapses. Pincushion distortion. (picture attached)
• Intermittently line tearing in picture at the edges.
• Tripping. intermittently.
• Picture is too wide or too small when adjusting horizontal size.
• Light green picture despite adjusting. Impossible to get red. (part of circuit diagram displayed)
• Power supply goes into safety mode and crackles. (picture attached)
• Poor regulation of the power supply. (with circuit diagram extract)
• Reduced vertical size. (with circuit diagram extract)
• Snow on screen and no reception. F4 displayed on screen. Green LED lit. (with circuit diagram extract)
• Low contrast. in TXT. (extract of circuit diagram attached)
• Poor width regulation with brightness. (part of circuit diagram displayed)
• With Blackline picture tubes occasional or random OSD insertion.
• S/C on deflection circuit. (part of circuit diagram displayed)
• Vertical lines. on the left. Excessive brightness. (extract of circuit diagram attached) (OTTOVERSAND - 704026 information)
• No picture. Audio and OSD OK .
• Blows chopper transistor at switch on.
• When switching on, HV part hums. No control function is possible. (with circuit diagram extract)
• No functions. intermittently.
• Excessive blue. (704026 tip from OTTOVERSAND)
• Switches to protection mode. (part of circuit diagram displayed)
• No red, green and blue go through correctly. TEA5101A and TDA8390 have been changed. (extract of circuit diagram attached)
• No picture. intermittently. (+ extract of circuit diagram)
• No functions. Power LED lit . (extract of circuit diagram attached)
• No vertical deflection. intermittently. (with circuit diagram extract)
• PSU chirps. (extract of circuit diagram attached)
• Voltage too low. (with circuit diagram extract)
• No picture. No audio. OK via SCART . (picture attached)
• Ballooning and incorrect picture linearity.
• Retrace lines. intermittently. (704026 OTTOVERSAND repair tip)
• Picture green and purple in the E/W direction.
• S/C from point 18 at line transformer to the ground. (part of circuit diagram displayed)
• Lines on picture and sections blanked out. No TXT. (part of circuit diagram displayed)
• PSU blocking. (extract of circuit diagram attached)
• No deflection. Horizontal line.
• Negative picture when cold and sometimes intermittently. (picture attached)
• Modification: Colour decoder chip IC7260.
• No luminance. (+ extract of circuit diagram)
• +148V drops to 100V occasionally according to the tube output. (picture attached)
• Reduced horizontal size. after a while. (extract of circuit diagram attached)
• Set can be turned off with RC, but not turned on. S.B. LED blinks. (picture attached)
• No colour in French standard. (picture attached) (704026 tip from OTTOVERSAND)
• Picture flickers for approx 5 mins after switch on when cold, then everything normal as soon as appliance reaches room temperature.
• BU508 blows one min after HT transistor (BU508AF) has been replaced. Picture OK during this one min.
• The sound fails: after changing over to a different channel, the sound is back. (part of circuit diagram displayed)
• No sound or vision with F1 showing in the display.
• Dark background and a band of colour on the right. (extract of circuit diagram attached)
• After switch on the picture is sometimes shifted and a black horizontal bar appears in the centre of the picture. (with circuit diagram extract)
• Power supply BU and fuse are defective when TV started up from standby. Occurs every week or fortnight and is very variable. (part of circuit diagram displayed)
• 148V measures 60V. (picture attached) (704026 tip from OTTOVERSAND)
• Line tearing and picture twitching at the sides of the picture.
• Switches off after operation time. LED goes off. Dead. Can be turned on via mains switch, then switches off again after operation time.
• The standby thyristor blows. (picture attached) (704026 OTTOVERSAND repair tip)
• The screen is white and there is no sound. The line transistor blows after 5 minutes. (picture attached)
• Horizontal line. in the centre. (+ extract of circuit diagram)
• BUT11 becomes defective after 3 days of use. (extract of circuit diagram attached)
• Flickering text and apparent tuning drift.
• Green spot after viewing a white object on the screen. (704026 tip from OTTOVERSAND)
• Does not switch to standby. Horizontal line. LED blinks . (picture attached)
• The output transistor of the power supply is defective. BUT11AF or 2SC3973B.
• No picture, only audio via SCART. "Off air" picture displayed.. (with circuit diagram extract)
• Chopper transistor (BUT18AF), rectifier diodes and mains fuse become defective instantly. (with circuit diagram extract)
• Type of transistor 7594 and value of resistor R3596. (704026 OTTOVERSAND repair tip)
• Defective BUT.
• LED lights up for a moment. TV is dead. Light on the power supply sometimes functions. (with circuit diagram extract)
• Line output transistor fails repeatedly. after start-up.
• Channel change impossible after a moment. Channel remains displayed and front LED becomes orange. (picture attached)
• Sound is noisy.
• Picture fault in tuner and scart.
• Crackle a few seconds after Power On. (extract of circuit diagram attached) (OTTOVERSAND - 704026 information)
• Functions but heat sink gets very hot after 10 mins. When put into standby, noise in the PSU. (extract of circuit diagram attached)
• Hum in audio. (with circuit diagram extract)
• Slow start-up. (+ extract of circuit diagram)
• No function. On start-up easy chirp is audible. (with circuit diagram extract)
• Darker bar on left of screen. (picture attached)
• Switches immediately to protection mode. Functions OK when protection mode is switched off. (extract of circuit diagram attached)
• Severe crossover distortion in left channel.
• Dead. Error code F1 displayed.
• SOPS power supply repeatedly becomes defective. (part of circuit diagram displayed)
• TV locked by and keys.
• Transistor 7545 (BU508AF) is blown. (+ extract of circuit diagram)
• Picture jitters. when cold. (+ extract of circuit diagram)
• Loss of red, green or blue or excessive red, green or blue pictures.
• After start up, PSU fails. (extract of circuit diagram attached) (704026 tip from OTTOVERSAND)
• Dark picture. Picture rolls. Picture shifted to the left. Flickering picture. (with circuit diagram extract)
• PSU repeatedly blows up. (+ extract of circuit diagram)
• In VCR there are only chroma lines. (extract of circuit diagram attached)
• PSU no function. (704026 OTTOVERSAND repair tip)
• Horizontal line. Audio OK . (picture attached)
• Low contrast. (part of circuit diagram displayed)
• Set does not start-up after implementing SOPS kit. (picture attached)
• Intermittent black picture with TXT. Intermittent TXT in picture.
• Egg-shaped picture, picture is pushed upwards. Underneath 5cm black bar. (part of circuit diagram displayed)
• No audio. (with circuit diagram extract)
• BUT18, R3570 and F1534 blow. (picture attached) (704026 tips)
• Frizzy lines on the picture.
• Dark picture with thin vertical stripe in upper picture. (with circuit diagram extract)
• No synchronisation. intermittently. (picture attached)
• No colours at start up 50% of the time on satellite channels. OK in HF and VCR. (part of circuit diagram displayed)
• BUT transistor becomes S/C either at switch on or after a certain period of time. (extract of circuit diagram attached) (704026 tips)
• CTV switches on but nothing happens. No sound or picture on the traditional aerial. On the contrary in scart with a dish the CTV has a picture but no sound. No automatic search possible. (picture attached)
• No teletext and OSD is hardly visible. The regular picture vibrates if appliance is switched to teletext. (picture attached)
• No functions. Red LED blinks. (+ extract of circuit diagram)
• White picture and no amplitude when cold. Picture pumping. (picture attached)
• Red flashing when changing channels with VCR playback in the still, search modes or edit points in own recordings. (picture attached)
• Intermittent fault all over the screen or over an irregular width band leading to line foldover, similar to coded Canal Plus picture. (part of circuit diagram displayed)
• The front control panel changes channels upwards but not downwards. All other functions OK.
• 6cm black bar at bottom of picture.
• R3653 burns. (with circuit diagram extract)
• Change in picture width depending on beam current. (part of circuit diagram displayed)
• Protection of T7625 (BUT18AF). (extract of circuit diagram attached)
• No start-up with mains switch after switched off from standby.
• No sound or picture. Appliance appears to be in AV. (picture attached)
• BUT18 fails repeatedly. (extract of circuit diagram attached)
• Doesn't switch into standby. Green LED goes orange and flashes after pressing standby key .
• Doesn't function with dummy load. (+ extract of circuit diagram) (704026 OTTOVERSAND repair tip)
• Transistor T7545 (BU508AF) becomes intermittently defective at program switch-over via "+" and "-" on user control.
• Volume uncontrollable. No brightness control. (704026 OTTOVERSAND repair tip)
• Black stripe on left edge of screen. Horizontal linearity is not correct. (picture attached)
• Vertical stripes at left picture edge via channel 2 and 4. (part of circuit diagram displayed)
• Beam current dependent picture width fault. (part of circuit diagram displayed)
• Buzzing from PSU. in standby. (+ extract of circuit diagram)
• No colour in SECAM and PAL. Colour may appear slightly in SECAM when warm. (part of circuit diagram displayed) (704026 OTTOVERSAND repair tip)
• Set functions with the variac but BUT11AF blows when appliance is plugged in. (+ extract of circuit diagram)
• Arcing. Picture tearing. Does not synchronise. (extract of circuit diagram attached)
• Power supply fuse (18A) defective after 1 hr or less. (+ extract of circuit diagram)
• The resistors 3661 and 3662 burn in standby, TS7625 is also defective sometimes. (+ extract of circuit diagram)
• Shuts down. after a few minutes. (+ extract of circuit diagram)
• No audio. F2 error.
• Vertical shaking. (+ extract of circuit diagram)
• Local dooming / PP-settings. (picture attached) (704026 OTTOVERSAND repair tip)
• Discharging noise. via speakers.
• Service mode
• Picture is affected by frizzy lines occasionally with crackling noise in the speakers and perhaps with a burnt smell. (picture attached)
• Excessive vertical size. (extract of circuit diagram attached) (704026 OTTOVERSAND repair tip)
• Line output transistor fails repeatedly. after a while. (with circuit diagram extract)
• POR signal too low. (with circuit diagram extract)
• Cramped at bottom with slight foldover.
• Hum bar.
• Power supply is low when warm. (picture attached)
• Thyristor goes S/C when switched to standby. (with circuit diagram extract)
• No channels.
• Power supply too low (70V). (extract of circuit diagram attached)
• Purity fault. (extract of circuit diagram attached)
• The bottom half of the raster is missing, with the top cramped.
• Chopper transistor failure. (extract of circuit diagram attached)
• At start up picture appears normally then darkens gradually in PAL. Normal in SECAM. Sound ok. Picture reappears by reducing the contrast, OSD normal. All other functions normal. (picture attached)
• Extra protection for chopper transistor TR7625 (BUT18AF). (extract of circuit diagram attached)
• Poor vertical linearity. Reduced vertical deflection. (extract of circuit diagram attached) (OTTOVERSAND - 704026 information)
• Cannot be switched to standby. After the first attempt appliance is blocked. (with circuit diagram extract)
• TV blocks on 600MHZ. If you do a frequency search, it goes through all frequencies but does not find any channels. (with circuit diagram extract)
• Problems with flof TXT. Cannot find p.811 in spite of it being sent out. TXT header remains with subtitling. (picture attached)
• No function. Buzzing noise. (part of circuit diagram displayed)
• Excessive brightness. (with circuit diagram extract)
• Switching transistor in power supply goes short circuit (BUT18).
• No picture. No display. Erratic functions. (+ extract of circuit diagram)
• Switching transistor of the SOPS power supply is defective. (extract of circuit diagram attached)
• Buzzing from PSU. Motorboating noise from speakers. in standby. (picture attached) (704026 OTTOVERSAND repair tip)
• Coloured spots in picture (local dooming). (with circuit diagram extract)
• Line end stage U/syst collapses to approx. 48V. (extract of circuit diagram attached)
• Page 811 appears spontaneously. (+ extract of circuit diagram)
• No or poor synchronisation.
• Dark picture. at bottom. Stretched picture. at top. (picture attached) (704026 tip from OTTOVERSAND)
• Local dooming - spots in the picture.
• Operating voltage stabilises at 50V. (with circuit diagram extract)
• Shuts down. LED is green. (part of circuit diagram displayed)
• Connection of a loop system to the TV.
• No picture. after a while. White screen. (picture attached)
• Vertical roll. when cold. (picture attached)
• White square in a corner of the screen. (+ extract of circuit diagram)
• Line output transformer overheats. (extract of circuit diagram attached)
• Error message F7 appears in the first 2 mins. No operation possible. (extract of circuit diagram attached)
• Does not go into standby. LED becomes orange but picture remains. (with circuit diagram extract)
• Line output transistor fails repeatedly. (picture attached)
• Mains fuse O/C and BUT S/C. (extract of circuit diagram attached)
• Line BU keeps failing. (+ extract of circuit diagram) (704026 tips)
• Picture size varies with picture content. (with circuit diagram extract)
• No audio. after a while. (picture attached)
• Crackling from FBT and black vertical bars on screen for a few secs after start up. (extract of circuit diagram attached)
• Secondary voltages fall when loaded. (extract of circuit diagram attached)
• Quick diagnosis (+ extract of circuit diagram)
• Protection for BUT18AF in PSU.
• Colour flickering during video editing.
• Faulty TXT. (extract of circuit diagram attached)
• Reduced raster size. (picture attached)
• Picture shakes.
• After about 3 to 4 weeks of regular play, the BUT18 and the main fuse automatically blow. (+ extract of circuit diagram)
• No PAL chroma.
• Protection mode activated.
• Weak contrast. No contrast control.
• Loud noises from speaker. Picture OK .
• Horizontal size varies. (part of circuit diagram displayed) (service info for OTTOVERSAND -704026)
• Pincushion distortion at each side. Adjustment potentiometer does not correct fault. (with circuit diagram extract)
• Appliance runs ok, but if remote used to switch to standby, appliance goes dead. (extract of circuit diagram attached)
• Shuts down. after a while. (part of circuit diagram displayed)
• BUT18AF fails repeatedly. (extract of circuit diagram attached)
• No switch on. Noise from loud-speakers and smell of burning. (extract of circuit diagram attached)
• Noise in audio. (704026 OTTOVERSAND repair tip)
• F4 displayed. LED flashes green then orange for slightly less than a sec. (part of circuit diagram displayed)
• Narrowing of line and frame then flashing of the picture. Screen turns dark after 10 mins. Picture ok when cold. (with circuit diagram extract)
• Starts without picture and audio then switches off after a few seconds.
• 148=68V. (with circuit diagram extract)
• Low picture amplitude. Barrell-shaped picture. (extract of circuit diagram attached)
• Vertical linearity is upwards a little sharp. Picture has shifted upwards. (part of circuit diagram displayed)
• Appliance does not start up. Crackling. (extract of circuit diagram attached) (704026 tip from OTTOVERSAND)
• Memory loss. (extract of circuit diagram attached) (OTTOVERSAND - 704026 information)
• No picture. Bright raster. Flyback lines. Audio OK . (+ extract of circuit diagram) (704026 tip from OTTOVERSAND)
• White screen. Flyback lines. Shuts down. after a few seconds. (+ extract of circuit diagram) (704026 tips)
• No MONO audio. STEREO OK . (extract of circuit diagram attached) (service info for OTTOVERSAND -704026)
• No picture. when cold. (with circuit diagram extract)
• White picture on the right side in EXT1 mode.
• Undefined STEREO mono switch over. OSD mono STEREO display present. (with circuit diagram extract)
• Does not store settings. (picture attached)
• Vertical deflection is defective. A piece is missing at the bottom and at the top the lines are pulled apart. (+ extract of circuit diagram)
• Reduced vertical deflection. intermittently. (+ extract of circuit diagram)
• Line end-stage has no function.
• On channels 2 and 4 vertical lines on the left hand side of the picture. (704026 tip from OTTOVERSAND)
• Vertical collapse. (+ extract of circuit diagram)
• No adjustment from PSU possible. (extract of circuit diagram attached)
• When switching on the appliance when it's cold, it takes about 35 seconds before the picture appears. (extract of circuit diagram attached) (704026 tips)
• Vertical size varies. Vertical jitter.
• Fuse 2A and BUT18 immediately defective at switch on with RC. Fault does not occur when switching on with on/off switch or by connecting mains plug. (extract of circuit diagram attached)
• Vertical roll. (picture attached)
• No picture or narrow streak after warm-up. (extract of circuit diagram attached)
• In standby tries to operate spontaneously. (with circuit diagram extract)
• Horizontal output stage fails again after some time. (picture attached) (service info for OTTOVERSAND -704026)
• On the test picture, distorted, vertical lines at top and bottom of the screen. (part of circuit diagram displayed)
• Blows components. at start-up. (picture attached)
• No quick start pulse. (+ extract of circuit diagram)
• Interference in picture. when cold. (picture attached)
• Poor OSD. Unusual colour of some characters. (extract of circuit diagram attached) (service info for OTTOVERSAND -704026)
• PSU blown.
• Intermittent memory problem.
• BUT18AF blows in standby on the collector. (picture attached)
• Search stops with good tuning.
• Dark picture.
• No tuning.
• Strange noise in loudspeakers. (with circuit diagram extract)
• No LED lit. (with circuit diagram extract)
• Sound and picture pulsating (2 times a sec) only via tuner.
• 100V power supply is approx 35V. (picture attached)
• Undefined Stereo Mono switchover. (704026 tips)
• Character error.
• Difficult to set up east/west and width controls. (+ extract of circuit diagram)
• Blank screen. Audio OK .
• No picture. F4 lights up in the display. (+ extract of circuit diagram)
• Dark picture. No picture. via SCART. No audio. via SCART. No RC functions. (with circuit diagram extract)
• BUT11AF S/C. (part of circuit diagram displayed)
• No audio. intermittently. (+ extract of circuit diagram)
• No colour. Coloured bars in picture. OK after a few minutes. (with circuit diagram extract)
• HT varies intermittently.
• Power supply BU blows after a few days.
• Too high power supply. (with circuit diagram extract)
• Slow start-up. Audio OK . (with circuit diagram extract)
• Colour bar at right of screen. (with circuit diagram extract)
• Intermittently screen blanks out. Random characters on screen.
• Coloured flash on channel change and VCR features. (picture attached)
• Mono/stereo display error. (extract of circuit diagram attached)
• Colour flickering during video editing.
• Grey screen. (+ extract of circuit diagram)
• Does not switch to standby. Picture remains on screen. (+ extract of circuit diagram)
• No TXT. (extract of circuit diagram attached)
• Appliance starts intermittently with no standby. (with circuit diagram extract)
• Intermittently green "F5" on screen, thereby very dark picture or TXT appears. (with circuit diagram extract)
• Horizontal shift no function.
• Red LED blinking for 3 secs.
• No vertical synchronisation. (with circuit diagram extract)
• Brightness differences in picture. (with circuit diagram extract)
• Defective BUT and fuse in the PSU. After replacing the appliance runs for several days until the fault occurs again. (+ extract of circuit diagram)
• Slight E/W distortion. (+ extract of circuit diagram)
• Fuse, bridge rectifier and BUT11 in PSU blow when in standby for 10 mins. (+ extract of circuit diagram)
• No picture. when cold. Audio OK . (+ extract of circuit diagram)
• PSU defective. (picture attached)
• Set dead, power supply refuses to start. Also intermittent start and no standby (+ extract of circuit diagram)
• East/west raster distortion: width and shaping control do not function.
• To give improved protection to the BUT11AF chopper transistor TR7665.
• Vertical collapse. intermittently. (part of circuit diagram displayed)
• Transformation in K' (only for stereo versions). (picture attached)
• Line output stage periodically fails. (part of circuit diagram displayed)
• References for transistors 7615 and 7612.
• PCD8582 and X2402 memory. (+ extract of circuit diagram)
• No button operation. intermittently. (extract of circuit diagram attached) (704026 tips)
• Horizontal line in the middle of screen.
• Picture width changes according to its content. Linear distortion on right and left sides over 5cm (no ondulation). (704026 tip from OTTOVERSAND)
• High voltage unit is smouldered. (extract of circuit diagram attached)
• Sound drops out. (704026 OTTOVERSAND repair tip)
• Smoke from +12V resistor. (part of circuit diagram displayed)
• Power supply falls to approx 40V AC on the variac. (with circuit diagram extract)
• Horizontal white line. (extract of circuit diagram attached)
• Distorted picture. at top. (+ extract of circuit diagram)
• Jagged picture. (with circuit diagram extract)
• No horizontal deflection. (extract of circuit diagram attached)
• Replacing the EEPROM. (with circuit diagram extract)
• Red light flashes for approximately 3 seconds then zero.
• Picture takes some time to appear. Dark screen then TV stops. Round colour spot which slowly disappears. (extract of circuit diagram attached) (704026 OTTOVERSAND repair tip)
• Picture jitters and vertical bars distorted on cross-hatched pattern. Blue horizontal bars. (+ extract of circuit diagram)
• Flashing picture. (picture attached)
• No HV. (part of circuit diagram displayed)
• End stage transistor BU508 fails repeatedly at switch on. (part of circuit diagram displayed)
• BUT18 is defective. (extract of circuit diagram attached)
• The line transistor blows after 5 minutes. (with circuit diagram extract)
• Tuning search does not stop. (704026 OTTOVERSAND repair tip)
• No sound. No response to commands from both RC and front panel. Error message F2 on screen. Picture ok. (+ extract of circuit diagram)
• Picture rolls. (picture attached) (704026 OTTOVERSAND repair tip)
• Wavy picture. at top.
• Flyback lines. intermittently.
• TS7625 (BUT 18AF) fails again. (with circuit diagram extract)
• Black screen. intermittently. (picture attached)
• U system only 5V instead 148V. (part of circuit diagram displayed)
• BUT11 in power supply defective after few days, or when in standby. (part of circuit diagram displayed)
• Poor frame linearity when cold. Picture is distorted vertically. (+ extract of circuit diagram)
• Intermittently blown Wickman fuse 1534.
• Sometimes the BUT18AF goes defective. (+ extract of circuit diagram)
• Fails occasionally.
• Sound only at program switch-over. (picture attached)
• As the set warms up the picture flashes cyan every few seconds. (extract of circuit diagram attached)
• No picture. Audio OK . (+ extract of circuit diagram)
• Line BU blows after a moment. (+ extract of circuit diagram)
• HV capacitor burns. (picture attached)
• Hum in audio. in standby. (with circuit diagram extract)
• Channels run through. (picture attached) (704026 OTTOVERSAND repair tip)
• Stop via RC, no red dot. No start up by pressing simultaneously on the switch and programme of the RC. On the contrary, stop and switch on via the switch functions. (picture attached) (704026 tips)
• No switch on. Red LED flickers for 3 seconds.
• No audio. when cold. No OSD. when cold. (extract of circuit diagram attached) (704026 tip from OTTOVERSAND)
• Horizontal-BU 508AF has a s/c. After replacing this fails again after a few seconds. (extract of circuit diagram attached)
• Fails in standby. (part of circuit diagram displayed)
• No functions. intermittently. LED blinks . Shuts down. (picture attached)
• If mains switched off when in standby, it does not start up again. Light off. (+ extract of circuit diagram)
• Poor chroma identification in Pal/Secam. On channels 5, 6 or with VCR, blue or red bands. (+ extract of circuit diagram)
• Raster signal problem.
• With high volume the appliance switches spontaneously to standby. (with circuit diagram extract) (service info for OTTOVERSAND -704026)
• Phase fault. (picture attached)
• Replacing TDA2579. (picture attached)
• Width of picture pumps according to picture content and narrows with a strong white. (part of circuit diagram displayed) (service info for OTTOVERSAND -704026)
• No picture. in E-E. Audio OK .
• F5 displayed on a screen corner. Occasionally channels switch over to channel 1 or TV switches off.
• Vertical deflection is defective. Picture present, after a short time a line appears then picture disappears. (extract of circuit diagram attached)
• Regulation does not function without a load. (+ extract of circuit diagram)
• Green LED does not light up. Power supply oscillates. (+ extract of circuit diagram)
• No tuning. intermittently. (with circuit diagram extract)
• BU508 defective after switching channel (when appliance is warm). (part of circuit diagram displayed)
• Difficult horizontal and vertical adjustment and sawtooth at the side. (picture attached)
• S/C in 148V line. (with circuit diagram extract)
• Picture is too big or too small during horizontal amplitude adjustment.
• Line transformer noise. (+ extract of circuit diagram)
• Reduced horizontal size. Vertical foldover. in the centre. (picture attached)
• No synchronisation. when cold. (part of circuit diagram displayed)
• Top of text is ringing. Intermittent text.
• Buzz in audio. (with circuit diagram extract)
• Picture varies with beam current. (picture attached)
• Ghosts and poor colours. (extract of circuit diagram attached)
• Tuning unstable. (picture attached)
• No E/W correction. (with circuit diagram extract) (704026 OTTOVERSAND repair tip)
• Thyristor fails in PSU in standby. Otherwise appliance OK. (picture attached)
• Occasionally standby thyristor 6670 S/C. (+ extract of circuit diagram)
• Luminance takes a long time to appear. Distorted picture, focus pot does not react sufficiently. (part of circuit diagram displayed) (service info for OTTOVERSAND -704026)
• Thyristor pos. 6670 fails. (extract of circuit diagram attached)
• No blue. (picture attached)
• No sound or picture. Snowy screen (picture with test signal). Vertical interference bars. (picture attached)
• Appliance works fine for hours, but after switching off with the remote control the BUT18 and mains fuse go defective. (part of circuit diagram displayed)
• Red standby light then dead at switch on. TV starts up on the variac. (+ extract of circuit diagram)
• Loud noise. (+ extract of circuit diagram)
• Mono/Stereo-indication switches. (extract of circuit diagram attached)
• Poor E/W adjustment. Picture is narrow in the middle. (picture attached)
• Chopper transistor (BUT18AF) fails if appliance is switched on from standby. (with circuit diagram extract)
• Appliance hums in Standby.
• Diode D6653 installation sops kit.
• Dark picture. Audio OK . (part of circuit diagram displayed)
• Lines in picture. on the left.
• Line output transformer failure.
• Unstable AFC. Noisy picture. (with circuit diagram extract)
• No brightness. No audio. Raster OK . (part of circuit diagram displayed)
• No raster. (extract of circuit diagram attached)
• Tuning search does not stop when appliance has found a station. (with circuit diagram extract)
• No picture, no sound, no display, 148V is reduced to approx 50V.
• When warm, there is a raster fault on the left. (extract of circuit diagram attached) (704026 OTTOVERSAND repair tip)
• EXT1 switchover is defective, terrestrial program remains.
• PSU repair. (extract of circuit diagram attached)
• Set not regulating after SOPS re-build of secondary side of PSU. (extract of circuit diagram attached)
• Fuse and PSU BU (BUT18AF) defective.
• Picture shifted to the right. Poor synchronisation. (extract of circuit diagram attached)
• The power supply BUT18AF shorts after operating for 5 hours. (with circuit diagram extract)
• No function, only hums. (with circuit diagram extract)
• PSU fails after a short time (S/C of BUT18AF). (with circuit diagram extract)
• The appliance functions correctly in standard B,G but the sound hums in F standard. (with circuit diagram extract)
• Poor vertical linearity. Horizontal size varies. (with circuit diagram extract)
• Red picture. after a while. (+ extract of circuit diagram)
• Slow start-up. Switches to standby. (+ extract of circuit diagram)
• BUT18 and rectifier bridge blow every two days even after modifications.
• At switch on with the mains switch, pulsates and after a while begins to function regularly (not always). Does not switch off completely if switched off with RC. (part of circuit diagram displayed) (704026 OTTOVERSAND repair tip)
• Horizontal end stage BU508AF short circuits after different playing times. (extract of circuit diagram attached)
• After a few secs in standby, 7625 and fuse destroyed. (part of circuit diagram displayed)
• Interference in picture. No picture. No audio. (+ extract of circuit diagram) (704026 tip from OTTOVERSAND)
• No sound, even with in or out scart.
• Black screen. No brightness. Audio OK . (part of circuit diagram displayed)
• Only grey picture after being struck by lightning. TXT also runs. (extract of circuit diagram attached)
• After a power supply fault caused by a storm video is defective. CTV in AV retains the picture of the TV programme which is being watched. Sound cuts out but OSD EX1 appears and the channel no. remains. (+ extract of circuit diagram)
• No regulation. (part of circuit diagram displayed)
• Secondary voltage cannot be adjusted lower than 160V. PSU however can be regulated with this voltage.
• Searches for channels continuously. (+ extract of circuit diagram)
• No picture, no sound. TV starts up and tube lights up. (picture attached)
• No start-up. (+ extract of circuit diagram)
• Intermittent failure thyristor 6670 in STANDBY mode. (extract of circuit diagram attached)
• No tuning. when cold. (extract of circuit diagram attached)
• Displays error code F4. When you switch to standby again, F4 appears again. LED flashes. Only noise. (part of circuit diagram displayed)
• E/W fault. No E/W correction. (extract of circuit diagram attached)
• Does not decode Canal Plus no the sound. Green LED flashes. (+ extract of circuit diagram)
• Dark screen. No OSD. (+ extract of circuit diagram)
• Takes approx 1 minute to come on, will not switch to standby, sound mutes but pulsating picture remains. (+ extract of circuit diagram) (OTTOVERSAND - 704026 information)
• Reduced horizontal size. intermittently.
• Occasionally BUT18 blows in standby. (extract of circuit diagram attached)
• Appliance starts up with the variac until it reaches 100V and then the appliance fails. (with circuit diagram extract)
• U148V measures 20V. (704026 tip from OTTOVERSAND)
• No sound at some stations or audio failure. Via scart OK.
• No start-up. intermittently. (picture attached)
• Dark streak on screen. (704026 tip from OTTOVERSAND)
• Dark picture. intermittently. (part of circuit diagram displayed)
• Contrast variations with subtitling in sets with BL-CRT. (extract of circuit diagram attached)
• TXT problem. Some characters do not display.
• Trapezoid picture. No E/W correction.
• Does not stop at stations. Station search OK. (+ extract of circuit diagram)
• Stretched picture. at top. Reduced raster size. at bottom. (picture attached) (service info for OTTOVERSAND -704026)
• Poor audio. only on certain channels. Crackling audio.
• Poor field linearity. (service info for OTTOVERSAND -704026)
• After approx 20 mins operating time appliance switches off. Then no Led. When you switch off completely with the mains switch and wait a time appliance starts again when you switch on.
• Picture flickers intermittently, sound disappears. Picture reappears by itself, sound doesn't but can be activated with the RC.
• Dark screen and bright bar at the top. Clock is strange. Sound present. (picture attached)
• No switching into CCIR standard. Display ok in SECAM and PAL/SECAM. (extract of circuit diagram attached)
• No reset.
• Connection of a loop system to the TV.
• 17V instead of 140V. (with circuit diagram extract)
• No linearity. (extract of circuit diagram attached)
• No tuner reception. Search display functions well but appliance does not pick up any channel. (part of circuit diagram displayed)
• No E/W correction. Pincushion distortion. (+ extract of circuit diagram)
• No colour. (+ extract of circuit diagram)
• Line transistor 7545 fails after approx. 3 secs. (extract of circuit diagram attached) (service info for OTTOVERSAND -704026)
• No control signal to IC7470 (TDA) and no line scanning. (part of circuit diagram displayed)
• Error codes. (+ extract of circuit diagram)
• Erratic functions. (with circuit diagram extract)
• Usys voltage of line output stage collapses to approx 48V. (with circuit diagram extract)
• PSU voltage low at 20V. (part of circuit diagram displayed)
• Blows fuse. after a few hours. (with circuit diagram extract)
• Distorted vertical lines at top and bottom of monoscope. E/W correction is faulty. (extract of circuit diagram attached)
• No horizontal synchronisation. (with circuit diagram extract)
• No 9V. (picture attached)
• BUT18AF is defective and is destroyed when appliance is switched on. (part of circuit diagram displayed)
• No operation. (with circuit diagram extract)
• After approx 10 minutes startup picture randomly disappears then reappears. No TEXT, only a mass of lines.
• Vertical defective, too large line space in upper picture third. Linearity fault. (part of circuit diagram displayed)
• Dark screen. LED is green. (with circuit diagram extract)
• No start up. No front panel LED. Quiet noise from loud-speakers.
• In Standby BUT18AF (T7625) becomes defective.
• Dead. Red LED blinks. (picture attached)
• When switched to standby U1 becomes 60V. PSU goes to limiting. (extract of circuit diagram attached)
• PSU transistor (BUT18A) becomes defective right after start-up.
• No HT output voltage of 148V. Voltage is present (approx. 158V) when disconnecting HT coils connector. (with circuit diagram extract)
• Black horizontal lines. (+ extract of circuit diagram)
• Poor picture. via tuner. (extract of circuit diagram attached)
• +120V instead of +148V. (part of circuit diagram displayed)
• TV blocked in F3.
• Ticking sound. (with circuit diagram extract)
• R3368 and R3369 burn up at switch on. (picture attached)
• Switches off during operation. When it is switched on again crackling is heard from HT. (picture attached)
• Chopper and line output transistors S/C. (picture attached)
• No red. (picture attached)
• No start-up from standby with RC.
• Dead set caused by lightning damage. (+ extract of circuit diagram)
• Line output transformer does not start up. (part of circuit diagram displayed)
• No output voltage.
• Finds emitters during channel search but does not stop. (part of circuit diagram displayed)
• Lacks contrast. No reaction on the plus or minus key of the contrast button. Other commands are ok.
• Dark screen. in TXT.
• Defective T7545. (with circuit diagram extract)
• Intermittent picture size.
• Nasal sound on channels 5 and 6. (picture attached)
• Snow on screen and no tuner reception. F3 displayed on screen. Green LED on.
• Functions with an automatic transformer up to 110, 120V. (with circuit diagram extract)
• Very loud sound at switch but normal at previous switch off. Adjustment OK.
• No picture. TXT OK . (part of circuit diagram displayed)
• PSU fuse blown. (picture attached)
• Picture leans too much to one side, Black line visible in the picture. (part of circuit diagram displayed)
• The horizontal centering cannot be adjusted correctly. It may have shifted after the appliance has warmed up.
• Replacement of TDA8451 (IC7305). (+ extract of circuit diagram)
• No picture and no sound. (extract of circuit diagram attached)
• Poor NICAM sound from left hand speaker.
• Thyristor TR7670 breaks down after two days (loose contacts). (extract of circuit diagram attached)
• Power supply blows when put into standby. (extract of circuit diagram attached)
• Frayed vertical lines. (extract of circuit diagram attached)
• No picture and sound. Buzz from power supply transformer.
• Vertical bar. on the left. (with circuit diagram extract)
• With Blackline picture tubes in the EXT1-Mode a white field is visible on the right side. (704026 tips)
• Protective circuit starts up. (with circuit diagram extract)
• Poor horizontal centering. (extract of circuit diagram attached)
• Stuck on channel 1.
• Switches to protection mode. intermittently. (with circuit diagram extract)
• 148V at approx 30V. (with circuit diagram extract)
• Black screen. Audio OK . (with circuit diagram extract)
• Defective line transistor. (picture attached)
• When switched off with RC, does not switch on again and LED remains off. (with circuit diagram extract) (service info for OTTOVERSAND -704026)
• Intermittently dead. (extract of circuit diagram attached)
• PSU has no function.
• One single line in the middle of the screen. (+ extract of circuit diagram)
• No colours. After approx an hour colours appear with fluctuations. (picture attached)
• Videotext has turbulent text content in upper section.
• Line BU blows after operating for 3-5 mins. (+ extract of circuit diagram)
• When put into standby tube remains lit. Picture cuts out normally. (picture attached)
• Only pulsates once. Resistor R3661 in the 5V rail is burnt.
• No sound in scart. Sound and picture via the tuner. The appliance does not pick up anything. (part of circuit diagram displayed)
• Faded picture. No contrast. (+ extract of circuit diagram)
• No colour. intermittently. (+ extract of circuit diagram)
• White screen.
• 185V instead of 148V. When taking a measurement on collector of TZ 7652, bulb goes off. (extract of circuit diagram attached)
• Goes into safety mode if it is left in standby then switched on via the switch. Starts normally if speaker or HT O/C. (+ extract of circuit diagram)
• Power supply breaks down. (picture attached) (service info for OTTOVERSAND -704026)
• Picture looks as if it were encoded (like on C+ channel). Sound is OK.
• Primary PSU switches off. No standby LED.
• Blank raster. No tuning. (service info for OTTOVERSAND -704026)
• Snow in picture. (with circuit diagram extract)
• No picture. Grey screen. Brightness control works normally. (extract of circuit diagram attached)
• Distorted audio.
• Very low secondary voltages. (picture attached)
• Vertical foldover. (with circuit diagram extract)
• White area visible on right side of screen in EXT1 mode of BL sets. (part of circuit diagram displayed)
• No contrast control. (with circuit diagram extract) (704026 tip from OTTOVERSAND)
• BU508AF fails repeatedly. (with circuit diagram extract)
• Power supply problem. (extract of circuit diagram attached)
• Vertical foldover at top.
• Top of TXT waves from side to side. (part of circuit diagram displayed)
• PSU varies according to picture content when warm. (with circuit diagram extract)
• Intermittent power supply shut down, the picture goes off for a split second, the display flickering in sympathy. (704026 tip from OTTOVERSAND)
• Squealing from PSU. after start-up. (+ extract of circuit diagram) (OTTOVERSAND - 704026 information)
• Blows chopper transistor. (extract of circuit diagram attached)
• Switches off intermittently. Standby LED (red-green) flashes. Picture drops out. (extract of circuit diagram attached)
• At start up goes immediately into standby. 12C BUS blocks at 5V. (extract of circuit diagram attached)
• Chroma fault in SECAM. (+ extract of circuit diagram)
• Picture flickers intermittently, sound disappears. Picture reappears of itself, sound doesn't but can be activated with the RC.
• Audio drop out or mute.
• No functions. No button operation. (extract of circuit diagram attached)
• Power supply crackles when power supply is low. (+ extract of circuit diagram)
• No chopper power supply. (part of circuit diagram displayed)
• BU508 blows after 1 or 2 days. (+ extract of circuit diagram)
• No start-up. Standby LED does not light. (picture attached)
• Dead. Soft ticking sound.
• Control micro processors.
• S/C in line output stage (7645). (part of circuit diagram displayed)
• Microprocessor/eprom screening plate. (picture attached)
• Over oscillations below collector BUT18. (part of circuit diagram displayed)
• Blue picture. after a while. (+ extract of circuit diagram)
• T7637 blown. (+ extract of circuit diagram)
• Horizontal deflection BU fails after a few hours.
• No colour. when cold. Poor colour. after warm-up. (extract of circuit diagram attached)
• No audio. Picture OK . (with circuit diagram extract)
• Intermittent line and raster synchro. (+ extract of circuit diagram)
• Intermittently BUT18 defective after switching on. (+ extract of circuit diagram)
• BUT18 blows at 100V on the variac.
• Vertical synchronisation fault when hot and presence of white line, then picture disappears (+ extract of circuit diagram)
• Switches to safety mode at approx. 110 V mains voltage. (picture attached)
• Vertical sync does not stop. (picture attached)
• Low brightness (even after turning up the preset in the U200 module).
• Orange spots on the right of the screen. (OTTOVERSAND - 704026 information)
• Dead. Humming noise from transformer. (+ extract of circuit diagram)
• Appliance fails and later comes back unprompted. (extract of circuit diagram attached)
• Loss of colour or no colour.
• Lower picture third is dark. Upper picture is dispersed. (+ extract of circuit diagram)
• No sound when input connection made via 2 S-VHS phono sockets.
• Set will go off after a period that varied from ten minutes to five hours. It will then stay off,coming back on again after a similarly indeterminate period.
• White picture with flyback lines. (part of circuit diagram displayed)
• No power supply, protection circuit triggered. (part of circuit diagram displayed)
• Dead. intermittently.
• Picture linearity error. Picture has shifted towards top. Picture folds over at the bottom.
• No light lit. (extract of circuit diagram attached) (704026 tip from OTTOVERSAND)
• Standby LED flashes at switch on, then switches off after a few secs, if no action is taken. If RC is pressed LED remains on, but no picture and audio. (with circuit diagram extract)
• No picture at switch on but after a few minutes picture appears with weak contrast. Picture improves gradually and after approx 30 mins is normal. (picture attached)
• No horizontal synchronisation. when cold. (part of circuit diagram displayed) (704026 tips)
• Faulty TXT. No TXT. intermittently.
• Picture is stretched - begins 5cms from bottom of the screen and is missing approx 1cm East/West. Appliance functions. (+ extract of circuit diagram)
• Shuts down. after a while. LED blinks .
• Vertical bars on channels 2 and 4 (picture attached)
• Blows chopper transistor when switching on with remote. (extract of circuit diagram attached)
• Supply transistor BUT18A becomes defective immediately after switching on the appliance. (extract of circuit diagram attached)
• One colour missing.
• No sound or vision, display going to F1.
• Reduced vertical size at bottom.
• Poor picture synchronisation during station switch-over. Vertical picture jitter, runs through, poor picture via RF or EXT. (+ extract of circuit diagram)
• PSU becomes defective after switch on via mains switch.
• Humming noise from transformer. Line output transistor fails repeatedly. (with circuit diagram extract) (OTTOVERSAND - 704026 information)
• Humming noise from transformer. in standby. (extract of circuit diagram attached)
• CTV functions one day. (extract of circuit diagram attached)
• Blows components. after a few minutes. (with circuit diagram extract)
• Frame shrinks horizontally when changing brightness. (extract of circuit diagram attached)
• Oval picture.
• Blocked. (+ extract of circuit diagram)
• Picture is not linear. Black bar at bottom of picture. (+ extract of circuit diagram)
• Does not switch to standby. LED turns pink. Picture remains. Sound mutes. (extract of circuit diagram attached) (service info for OTTOVERSAND -704026)
• Insufficient picture height which can be adjusted. Poor E/W.
• Tuning drifts. after a while.
• Picture flickers the first 5 minutes. Gradually becomes less but very visible in the dark portions of the screen.
• Horizontal, bright line.
• Local dooming, especially with high contrast. (+ extract of circuit diagram)
• Vertical shift incorrect, after replacing a 28" BL-CRT. (part of circuit diagram displayed)
• How to check the power supply without blowing BUT18AF. (704026 OTTOVERSAND repair tip)
• Ragged picture.
• No vertical deflection. Horizontal line. (with circuit diagram extract)
• Picture takes a long time to appear (several mins). (extract of circuit diagram attached)
• Incorrect reception. 33V ok. Picture ok in scart.
• S/C in EHT stage. (picture attached) (OTTOVERSAND - 704026 information)
• Line tearing and picture quiver at the edges.
• Sound was OK but there was no vision for the first 10 mins after switch on. (picture attached)
• Vertical foldover at top and bottom. (part of circuit diagram displayed)
• Trips. (+ extract of circuit diagram)
• No E/W. (704026 tip from OTTOVERSAND)
• +16V flashover. (extract of circuit diagram attached)
• Vertical collapse. after a few minutes. Audio OK .
• Distorted TXT. at top.
• Poor regulation. (+ extract of circuit diagram)
• The picture is indented (horizontally).
• Switching transistor T7625 has failed. (extract of circuit diagram attached)
• Unadjustable horizontal centering. (extract of circuit diagram attached)
• Defective standby thyristor (SFOR5D43). (extract of circuit diagram attached)
• No picture, teletext and sound are fine. (picture attached)
• Contrast adjustment inoperative, colour streaks. (extract of circuit diagram attached)
• Low sound on channel A. (+ extract of circuit diagram)
• TXT has no function. TXT is activated but only dark screen.
• Capacitor 2545 in PSU burns. (picture attached)
• Defective SOPS. (picture attached)
• Can not be switched off in Standby position. When starting, LED becomes orange and blows. (with circuit diagram extract)
• BUT18AF (T7625) becomes defective in standby. (with circuit diagram extract)
• Switch on during standby only functions when RC is very close to the appliance.
• Reduced format, flyback line slightly visible. (extract of circuit diagram attached)
• No synchronisation.
• Dark screen. No picture. No RC functions. (with circuit diagram extract)
• EHT problems. (with circuit diagram extract)
• Line BU508blows after 3 days. (picture attached)
• Picture stretched at top, compressed at bottom with black bar. Picture improves when warm. (part of circuit diagram displayed) (704026 OTTOVERSAND repair tip)
• Dark screen. via tuner. Audio and OSD OK . (picture attached)
• Single dark lines in picture centre.
• BUT11A fails after operating for long time. (with circuit diagram extract)
• OSD partly disappeared from the screen in BL sets. (with circuit diagram extract)
• Adjustment black line matrix.
• Line output transistor defective. (part of circuit diagram displayed) (704026 tip from OTTOVERSAND)
• Line transistor S/C.
• Undefined Stereo-Mono switch over.
• Power supply is often destroyed when left in standby. (+ extract of circuit diagram) (704026 tip from OTTOVERSAND)
• Value of 3525 in the vertical amplifier situated in front of the line transformer towards tube 4 beside cushion 3521.
• Causes for appliance going into safety mode.
• Impossible to adjust horizontal shift of picture using R3595. (+ extract of circuit diagram)
• No picture. on lower half screen. (picture attached)
• Does not switch to standby. No functions. at switch-off. (+ extract of circuit diagram)
• Picture and sound drop out. Appliance jumps to channel 1.