704025 / OTTOVERSAND [TV]

• Slight E/W distortion. (+ extract of circuit diagram)
• 148=68V. (picture attached)
• Dark screen. No OSD. (extract of circuit diagram attached)
• Difficult horizontal and vertical adjustment and sawtooth at the side. (with circuit diagram extract)
• Starts up again then clicks after a few mins. PSU faled again. (picture attached)
• No LED lit. (part of circuit diagram displayed) (704025 tip from OTTOVERSAND)
• Interference in picture. when cold. (with circuit diagram extract)
• PSU repair. (extract of circuit diagram attached)
• No picture. when cold. Audio OK . (picture attached)
• Quick diagnosis (part of circuit diagram displayed)
• Noise in audio.
• Memory loss. (part of circuit diagram displayed)
• Incorrect reception. 33V ok. Picture ok in scart.
• Picture jitters and vertical bars distorted on cross-hatched pattern. Blue horizontal bars. (picture attached)
• Discharging noise. via speakers.
• No operation. (+ extract of circuit diagram)
• Service mode
• PSU fuse blown. (picture attached)
• Switch on during standby only functions when RC is very close to the appliance.
• Vertical foldover at top.
• Power supply breaks down. (+ extract of circuit diagram)
• BUT18 is defective. (+ extract of circuit diagram)
• Intermittent fault all over the screen or over an irregular width band leading to line foldover, similar to coded Canal Plus picture. (extract of circuit diagram attached)
• Vertical foldover. (+ extract of circuit diagram)
• Blank screen. Audio OK .
• White area visible on right side of screen in EXT1 mode of BL sets. (extract of circuit diagram attached)
• Contrast adjustment inoperative, colour streaks. (part of circuit diagram displayed)
• Vertical foldover at top and bottom. (picture attached)
• Switches to protection mode. (+ extract of circuit diagram)
• No vertical deflection. intermittently. (extract of circuit diagram attached)
• No control signal to IC7470 (TDA) and no line scanning. (extract of circuit diagram attached)
• Poor audio. only on certain channels. Crackling audio.
• Poor OSD. Unusual colour of some characters. (with circuit diagram extract)
• Picture collapses. Pincushion distortion. (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. (704025 OTTOVERSAND repair tip)
• One colour missing.
• Dark picture. Picture rolls. Picture shifted to the left. Flickering picture. (with circuit diagram extract)
• Jagged picture. (part of circuit diagram displayed)
• Horizontal end stage BU508AF short circuits after different playing times. (with circuit diagram extract)
• Searches for channels continuously. (extract of circuit diagram attached)
• Low sound on channel A. (extract of circuit diagram attached)
• No picture, only audio via SCART. "Off air" picture displayed.. (with circuit diagram extract)
• Sound only at program switch-over. (+ extract of circuit diagram)
• Does not switch to standby. Horizontal line. LED blinks . (picture attached)
• No audio. F2 error.
• No luminance. (+ extract of circuit diagram)
• Vertical deflection is defective. Picture present, after a short time a line appears then picture disappears. (+ extract of circuit diagram)
• Does not switch to standby. No functions. at switch-off. (+ extract of circuit diagram)
• Power supply is low when warm. (part of circuit diagram displayed)
• Dark picture.
• Picture is affected by frizzy lines occasionally with crackling noise in the speakers and perhaps with a burnt smell. (with circuit diagram extract) (service info for OTTOVERSAND -704025)
• Poor frame linearity when cold. Picture is distorted vertically. (picture attached)
• Picture shifted to the right. Poor synchronisation. (picture attached)
• Vertical stripes at left picture edge via channel 2 and 4. (picture attached)
• When warm, there is a raster fault on the left. (picture attached)
• Low contrast. in TXT. (with circuit diagram extract)
• S/C from point 18 at line transformer to the ground. (picture attached)
• Arcing. Picture tearing. Does not synchronise. (part of circuit diagram displayed)
• No 9V. (+ extract of circuit diagram)
• S/C in 148V line. (with circuit diagram extract)
• No picture. Audio OK . (extract of circuit diagram attached)
• No quick start pulse. (picture attached)
• Red flashing when changing channels with VCR playback in the still, search modes or edit points in own recordings. (extract of circuit diagram attached)
• Reduced raster size. (part of circuit diagram displayed)
• Mono/stereo display error. (part of circuit diagram displayed)
• No picture, no sound. TV starts up and tube lights up. (+ extract of circuit diagram)
• Reduced format, flyback line slightly visible. (extract of circuit diagram attached)
• No start-up with mains switch after switched off from standby.
• No picture. Bright raster. Flyback lines. Audio OK . (+ extract of circuit diagram)
• BUT18AF fails repeatedly. (extract of circuit diagram attached)
• PCD8582 and X2402 memory. (extract of circuit diagram attached)
• 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. (part of circuit diagram displayed)
• Single dark lines in picture centre.
• Appliance starts intermittently with no standby. (+ extract of circuit diagram)
• Horizontal white line. (picture attached)
• Poor picture. via tuner. (picture attached)
• Distorted vertical lines at top and bottom of monoscope. E/W correction is faulty. (+ extract of circuit diagram)
• Modification: Colour decoder chip IC7260.
• Power supply failure. (+ extract of circuit diagram)
• Smoke from +12V resistor. (picture attached)
• BU508AF fails repeatedly. (with circuit diagram extract)
• TV locked by and keys.
• Chopper and line output transistors S/C. (picture attached)
• Appliance does not start up. Crackling. (+ extract of circuit diagram)
• Strange noise in loudspeakers. (picture attached)
• No sound or vision with F1 showing in the display.
• Value of 3525 in the vertical amplifier situated in front of the line transformer towards tube 4 beside cushion 3521.
• The power supply BUT18AF shorts after operating for 5 hours. (+ extract of circuit diagram)
• Horizontal deflection BU fails after a few hours.
• No button operation. intermittently. (with circuit diagram extract)
• Fuse and PSU BU (BUT18AF) defective.
• Line tearing and picture quiver at the edges.
• Picture is too big or too small during horizontal amplitude adjustment.
• Channel change impossible after a moment. Channel remains displayed and front LED becomes orange. (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. (+ extract of circuit diagram)
• Distorted TXT. at top.
• Protection mode activated.
• Ragged picture.
• Control micro processors.
• Local dooming - spots in the picture. (OTTOVERSAND - 704025 information)
• Snow on screen and no tuner reception. F3 displayed on screen. Green LED on.
• Lines in picture. on the left. (704025 OTTOVERSAND repair tip)
• Starts, but only raster. Display shows "F3". (picture attached) (service info for OTTOVERSAND -704025)
• One single line in the middle of the screen. (picture attached)
• The standby thyristor blows. (part of circuit diagram displayed) (704025 OTTOVERSAND repair tip)
• Excessive blue.
• When switched to standby U1 becomes 60V. PSU goes to limiting. (extract of circuit diagram attached)
• Works correctly but power supply BUT11 blows after 3 weeks. (+ extract of circuit diagram)
• +120V instead of +148V. (+ extract of circuit diagram)
• Picture flickers the first 5 minutes. Gradually becomes less but very visible in the dark portions of the screen.
• Horizontal output stage fails again after some time. (with circuit diagram extract)
• Only pulsates once. Resistor R3661 in the 5V rail is burnt.
• Thyristor goes S/C when switched to standby. (part of circuit diagram displayed)
• Takes approx 1 minute to come on, will not switch to standby, sound mutes but pulsating picture remains. (part of circuit diagram displayed)
• Horizontal line. Audio OK . (part of circuit diagram displayed) (OTTOVERSAND - 704025 information)
• No teletext and OSD is hardly visible. The regular picture vibrates if appliance is switched to teletext. (extract of circuit diagram attached)
• Undefined Stereo-Mono switch over.
• Line transistor S/C. (OTTOVERSAND - 704025 information)
• Red LED blinking for 3 secs. (704025 tips)
• No reset. (704025 OTTOVERSAND repair tip)
• When switched off with RC, does not switch on again and LED remains off. (picture attached)
• Horizontal size varies. (picture 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. (+ extract of circuit diagram)
• Tripping. intermittently.
• 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. (part of circuit diagram displayed)
• No signal on the BUT11AF collector. (with circuit diagram extract)
• Secondary voltages fall when loaded. (extract of circuit diagram attached)
• Chroma fault in SECAM. (part of circuit diagram displayed)
• Displays error code F4. When you switch to standby again, F4 appears again. LED flashes. Only noise. (with circuit diagram extract)
• Reduced horizontal size. intermittently.
• BUT transistor becomes S/C either at switch on or after a certain period of time. (part of circuit diagram displayed)
• Horizontal-BU 508AF has a s/c. After replacing this fails again after a few seconds. (with circuit diagram extract)
• Picture takes a long time to appear (several mins). (extract of circuit diagram attached) (OTTOVERSAND - 704025 information)
• No picture. on lower half screen. (picture attached)
• On channels 2 and 4 vertical lines on the left hand side of the picture.
• F4 displayed. LED flashes green then orange for slightly less than a sec. (+ extract of circuit diagram)
• Intermittently green "F5" on screen, thereby very dark picture or TXT appears. (part of circuit diagram displayed)
• Fails in standby. (+ extract of circuit diagram) (704025 OTTOVERSAND repair tip)
• Red standby light then dead at switch on. TV starts up on the variac. (extract of circuit diagram attached)
• No switch on. Noise from loud-speakers and smell of burning. (+ extract of circuit diagram)
• Poor chroma identification in Pal/Secam. On channels 5, 6 or with VCR, blue or red bands. (part of circuit diagram displayed)
• Dark picture with thin vertical stripe in upper picture. (with circuit diagram extract)
• Poor vertical linearity. Horizontal size varies. (part of circuit diagram displayed)
• Slow start-up. Switches to standby. (extract of circuit diagram attached)
• Sound is noisy. (704025 OTTOVERSAND repair tip)
• Dark screen and bright bar at the top. Clock is strange. Sound present. (picture attached)
• Poor regulation of the power supply. (picture attached)
• Line end stage U/syst collapses to approx. 48V. (extract of circuit diagram attached)
• No start-up. Standby LED does not light. (part of circuit diagram displayed) (OTTOVERSAND - 704025 information)
• Intermittently dead. (extract of circuit diagram attached)
• When warm, picture foldover and the line BU blows. (part of circuit diagram displayed)
• Loss of red, green or blue or excessive red, green or blue pictures.
• No audio. intermittently. (part of circuit diagram displayed)
• Dark screen. in TXT.
• Distorted audio.
• Sound and picture pulsating (2 times a sec) only via tuner.
• Unadjustable horizontal centering. (extract of circuit diagram attached)
• BUT18AF is defective and is destroyed when appliance is switched on. (with circuit diagram extract)
• Unstable AFC. Noisy picture. (+ extract of circuit diagram)
• TXT problem. Some characters do not display.
• Very loud sound at switch but normal at previous switch off. Adjustment OK.
• TXT has no function. TXT is activated but only dark screen. (704025 tips)
• Loss of colour or no colour.
• No switching into CCIR standard. Display ok in SECAM and PAL/SECAM. (part of circuit diagram displayed)
• Cannot be switched to standby. After the first attempt appliance is blocked. (picture attached)
• Connection of a loop system to the TV.
• No start-up. intermittently. (with circuit diagram extract)
• BUT18AF blows in standby on the collector. (part of circuit diagram displayed) (OTTOVERSAND - 704025 information)
• BU508 blows one min after HT transistor (BU508AF) has been replaced. Picture OK during this one min.
• Intermittent colour.
• No functions. Power LED lit . (picture attached)
• Green LED does not light up. Power supply oscillates. (with circuit diagram extract)
• Poor NICAM sound from left hand speaker.
• Line output transformer does not start up. (+ extract of circuit diagram)
• BUT18 fails repeatedly. (with circuit diagram extract) (704025 tip from OTTOVERSAND)
• Poor picture synchronisation during station switch-over. Vertical picture jitter, runs through, poor picture via RF or EXT. (picture attached)
• No horizontal synchronisation. (part of circuit diagram displayed)
• 100V power supply is approx 35V. (extract of circuit diagram attached)
• Line BU blows after a moment. (extract of circuit diagram attached)
• Excessive horizontal size. Picture size varies with picture content. (picture attached)
• Switching transistor of the SOPS power supply is defective. (+ extract of circuit diagram)
• Power supply falls to approx 40V AC on the variac. (picture attached)
• Shuts down. LED is green. (picture attached)
• Defective line transistor. (picture attached)
• Green spot after viewing a white object on the screen. (service info for OTTOVERSAND -704025)
• Volume uncontrollable. No brightness control.
• Picture pulsates on white background.
• Connection of the loop system to the TV.
• Green picture. after a while. (with circuit diagram extract)
• No switch on. Red LED flickers for 3 seconds.
• Picture is not linear. Black bar at bottom of picture. (extract of circuit diagram attached)
• 5.1V incorrect. (part of circuit diagram displayed)
• PSU voltage low at 20V. (with circuit diagram extract)
• The sound fails: after changing over to a different channel, the sound is back. (extract of circuit diagram attached)
• PSU chirps. (with circuit diagram extract)
• Buzzing from PSU. Motorboating noise from speakers. in standby. (+ extract of circuit diagram) (704025 tip from OTTOVERSAND)
• Only grey picture after being struck by lightning. TXT also runs. (+ extract of circuit diagram)
• Goes to blank screen with unlocked TXT lines when TXT selected.
• Dark picture. intermittently. (with circuit diagram extract)
• Poor E/W adjustment. Picture is narrow in the middle. (with circuit diagram extract)
• No HT output voltage of 148V. Voltage is present (approx. 158V) when disconnecting HT coils connector. (+ extract of circuit diagram)
• Power supply too low (70V). (extract of circuit diagram attached)
• Line tearing and picture twitching at the sides of the picture.
• Line output transistor fails repeatedly. (picture attached) (704025 OTTOVERSAND repair tip)
• No picture. in E-E. Audio OK .
• Dead. Humming noise from transformer. (part of circuit diagram displayed) (704025 tips)
• Tuning does not function, drifts, raster doubles up. Vertical sychronisation fault. (part of circuit diagram displayed) (service info for OTTOVERSAND -704025)
• PSU fails after a short time (S/C of BUT18AF). (+ extract of circuit diagram)
• Faulty TXT. (extract of circuit diagram attached)
• BU508 blows after 1 or 2 days. (extract of circuit diagram attached)
• Reduced vertical size. (picture attached)
• White screen.
• Beam current dependent picture width fault. (+ extract of circuit diagram)
• Dead set caused by lightning damage. (picture attached)
• Dark screen. via tuner. Audio and OSD OK . (picture attached)
• Lower picture third is dark. Upper picture is dispersed. (picture attached)
• Darker bar on left of screen. (part of circuit diagram displayed)
• R3653 burns. (picture attached)
• BUT11 becomes defective after 3 days of use. (+ extract of circuit diagram)
• Does not decode Canal Plus no the sound. Green LED flashes. (picture attached)
• Switches to protection mode. intermittently. (part of circuit diagram displayed)
• Picture flickers intermittently, sound disappears. Picture reappears of itself, sound doesn't but can be activated with the RC.
• Insufficient picture height which can be adjusted. Poor E/W.
• Grey screen. (part of circuit diagram displayed)
• High voltage unit is smouldered. (extract of circuit diagram attached)
• Microprocessor/eprom screening plate. (part of circuit diagram displayed)
• Picture flickers for approx 5 mins after switch on when cold, then everything normal as soon as appliance reaches room temperature.
• White screen. Flyback lines. Shuts down. after a few seconds. (+ extract of circuit diagram)
• No red. (picture attached)
• Dark screen. No picture. No RC functions. (with circuit diagram extract)
• Appliance works for 4 hours and then cuts out completely.
• No E/W correction. Pincushion distortion. (extract of circuit diagram attached)
• Humming noise from transformer. in standby. (+ extract of circuit diagram)
• Type of transistor 7594 and value of resistor R3596.
• Occasionally BUT18 blows in standby. (+ extract of circuit diagram)
• No E/W correction. (+ extract of circuit diagram)
• Black screen. intermittently. (+ extract of circuit diagram) (704025 tips)
• No horizontal synchronisation. when cold. (extract of circuit diagram attached) (704025 tips)
• Trips. (part of circuit diagram displayed)
• Poor regulation. (+ extract of circuit diagram)
• Local dooming, especially with high contrast. (with circuit diagram extract)
• Low picture amplitude. Barrell-shaped picture. (picture attached)
• Colour flickering during video editing.
• BUT18 blows at 100V on the variac.
• Pincushion distortion at each side. Adjustment potentiometer does not correct fault. (with circuit diagram extract)
• Cramped at bottom with slight foldover.
• Start with interfering voltage. (extract of circuit diagram attached)
• Weak contrast. No contrast control.
• Black screen. Audio OK . (part of circuit diagram displayed)
• Squealing from PSU. after start-up. (with circuit diagram extract)
• BUT18AF (T7625) becomes defective in standby. (extract of circuit diagram attached)
• No TXT, just lines on screen.
• Picture shakes.
• Protection for BUT18AF in PSU.
• Switches off intermittently. Standby LED (red-green) flashes. Picture drops out. (extract of circuit diagram attached)
• No picture. No brightness. No sound. Picture tube filament on.
• Poor field linearity.
• Power supply goes into safety mode and crackles. (with circuit diagram extract)
• Switches to safety mode at approx. 110 V mains voltage. (with circuit diagram extract)
• PSU varies according to picture content when warm. (part of circuit diagram displayed)
• 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. (with circuit diagram extract)
• Switches immediately to protection mode. Functions OK when protection mode is switched off. (part of circuit diagram displayed)
• Defective BUT and fuse in the PSU. After replacing the appliance runs for several days until the fault occurs again. (with circuit diagram extract)
• Channels run through. (with circuit diagram extract)
• With high volume the appliance switches spontaneously to standby. (+ extract of circuit diagram)
• In Standby BUT18AF (T7625) becomes defective.
• Frame shrinks horizontally when changing brightness. (picture attached)
• Picture varies with beam current. (extract of circuit diagram attached) (704025 tips)
• Doesn't function with dummy load. (extract of circuit diagram attached)
• No sound. No response to commands from both RC and front panel. Error message F2 on screen. Picture ok. (with circuit diagram extract)
• No colour. (+ extract of circuit diagram) (OTTOVERSAND - 704025 information)
• Dark picture. No picture. via SCART. No audio. via SCART. No RC functions. (with circuit diagram extract)
• Loud noise. (part of circuit diagram displayed)
• After start up, PSU fails. (+ extract of circuit diagram)
• Fuse, bridge rectifier and BUT11 in PSU blow when in standby for 10 mins. (part of circuit diagram displayed)
• Hum bar.
• Transistor T7545 (BU508AF) becomes intermittently defective at program switch-over via "+" and "-" on user control.
• As the set warms up the picture flashes cyan every few seconds. (extract of circuit diagram attached)
• No sound or picture. Snowy screen (picture with test signal). Vertical interference bars. (with circuit diagram extract)
• Set can be turned off with RC, but not turned on. S.B. LED blinks. (+ extract of circuit diagram)
• Picture rolls. (+ extract of circuit diagram)
• Operating voltage stabilises at 50V. (picture attached)
• Colour bar at right of screen. (with circuit diagram extract)
• No or poor synchronisation. (OTTOVERSAND - 704025 information)
• Colour blobs in the picture.
• Regulation does not function without a load. (part of circuit diagram displayed)
• U system only 5V instead 148V. (picture attached)
• Faulty TXT. No TXT. intermittently.
• Horizontal, bright line.
• Transistor 7545 (BU508AF) is blown. (part of circuit diagram displayed)
• Lacks contrast. No reaction on the plus or minus key of the contrast button. Other commands are ok.
• Intermittently screen blanks out. Random characters on screen.
• Picture takes some time to appear. Dark screen then TV stops. Round colour spot which slowly disappears. (part of circuit diagram displayed)
• Transformation in K' (only for stereo versions). (part of circuit diagram displayed)
• To give improved protection to the BUT11AF chopper transistor TR7665.
• Top of TXT waves from side to side. (picture attached)
• Lines on picture and sections blanked out. No TXT. (with circuit diagram extract)
• LED lights up for a moment. TV is dead. Light on the power supply sometimes functions. (with circuit diagram extract)
• SOPS power supply repeatedly becomes defective. (extract of circuit diagram attached)
• Defective standby thyristor (SFOR5D43). (with circuit diagram extract)
• Hum in audio. in standby. (with circuit diagram extract)
• Reduced vertical deflection. intermittently. (extract of circuit diagram attached)
• Does not switch to standby. LED turns pink. Picture remains. Sound mutes. (with circuit diagram extract)
• No functions. Red LED blinks. (part of circuit diagram displayed)
• Shuts down. after a while. (extract of circuit diagram attached)
• White picture and no amplitude when cold. Picture pumping. (+ extract of circuit diagram)
• No power supply, protection circuit triggered. (extract of circuit diagram attached) (704025 tips)
• Sound drops out.
• Extra protection for chopper transistor TR7625 (BUT18AF). (picture attached)
• 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.
• +16V flashover. (with circuit diagram extract) (704025 OTTOVERSAND repair tip)
• White picture with flyback lines. (+ extract of circuit diagram)
• BU508, Q7593 and Q7594 are defective. (with circuit diagram extract)
• Shuts down. after a while. LED blinks .
• Dead. Error code F1 displayed.
• Adjustment black line matrix.
• Too high power supply. (+ extract of circuit diagram)
• No tuning. when cold. (picture attached) (service info for OTTOVERSAND -704025)
• Black screen. No brightness. Audio OK . (part of circuit diagram displayed)
• When cold, picture takes approx 2.5 mins to appear instead of 15 secs. When warm it takes 20 secs. (part of circuit diagram displayed)
• Local dooming / PP-settings. (with circuit diagram extract) (704025 OTTOVERSAND repair tip)
• Line BU508blows after 3 days. (+ extract of circuit diagram)
• Wavy picture. at top.
• Picture green and purple in the E/W direction.
• Intermittent picture size.
• Vertical shaking. (picture attached) (704025 tip from OTTOVERSAND)
• BUT11 in power supply defective after few days, or when in standby. (+ extract of circuit diagram)
• Vertical deflection is defective. A piece is missing at the bottom and at the top the lines are pulled apart. (+ extract of circuit diagram)
• No picture, no sound, no display, 148V is reduced to approx 50V.
• No start up. No front panel LED. Quiet noise from loud-speakers.
• No audio. (part of circuit diagram displayed)
• HT varies intermittently.
• The front control panel changes channels upwards but not downwards. All other functions OK. (service info for OTTOVERSAND -704025)
• No red, green and blue go through correctly. TEA5101A and TDA8390 have been changed. (picture attached)
• Horizontal shift no function. (OTTOVERSAND - 704025 information)
• Distorted picture. (picture attached)
• Vertical linearity is upwards a little sharp. Picture has shifted upwards. (with circuit diagram extract)
• Page 811 appears spontaneously. (+ extract of circuit diagram)
• Ballooning and incorrect picture linearity.
• EXT1 switchover is defective, terrestrial program remains.
• When switching on the appliance when it's cold, it takes about 35 seconds before the picture appears. (part of circuit diagram displayed)
• Tuning search does not stop when appliance has found a station. (extract of circuit diagram attached)
• After approx 10 minutes startup picture randomly disappears then reappears. No TEXT, only a mass of lines.
• Picture is too wide or too small when adjusting horizontal size.
• Error codes. (with circuit diagram extract)
• In VCR there are only chroma lines. (extract of circuit diagram attached)
• U148V measures 20V. (704025 tip from OTTOVERSAND)
• Hum in audio. (extract of circuit diagram attached)
• Switches on for a few secs with extreme brightness. No picture. Sound OK. Goes into safety mode immediately after.
• Defective BUT.
• Buzz in audio. (+ extract of circuit diagram)
• Snow in picture. (picture attached)
• Line output transformer overheats. (picture attached)
• No audio. when cold. No OSD. when cold. (part of circuit diagram displayed)
• No vertical synchronisation. (with circuit diagram extract)
• No adjustment from PSU possible. (picture attached)
• After a few secs in standby, 7625 and fuse destroyed. (+ extract of circuit diagram)
• No picture. Audio and OSD OK .
• Vertical roll. (+ extract of circuit diagram)
• No picture. intermittently. (picture attached)
• Undefined STEREO mono switch over. OSD mono STEREO display present. (with circuit diagram extract)
• Crackle a few seconds after Power On. (extract of circuit diagram attached)
• BU508 defective after switching channel (when appliance is warm). (extract of circuit diagram attached)
• No picture. after a while. White screen. (part of circuit diagram displayed)
• Tuning drifts. after a while.
• Diode D6653 installation sops kit.
• Spare part info: values of C2546, C2547 and C2545, located on collector of T7545. (picture attached)
• Negative picture when cold and sometimes intermittently. (+ extract of circuit diagram)
• Flyback lines. intermittently.
• No output voltage.
• Blank raster. No tuning.
• 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. (extract of circuit diagram attached)
• Picture size varies with picture content. (picture attached)
• If mains switched off when in standby, it does not start up again. Light off. (picture attached)
• At start up goes immediately into standby. 12C BUS blocks at 5V. (with circuit diagram extract)
• Vertical shift incorrect, after replacing a 28" BL-CRT. (with circuit diagram extract)
• PSU transistor (BUT18A) becomes defective right after start-up.
• Width of picture pumps according to picture content and narrows with a strong white. (picture attached)
• No functions. intermittently. LED blinks . Shuts down. (with circuit diagram extract)
• 6cm black bar at bottom of picture.
• Chopper transistor (BUT18AF) fails if appliance is switched on from standby. (picture attached)
• Tuning search does not stop.
• No PAL chroma.
• In standby tries to operate spontaneously. (picture attached) (704025 OTTOVERSAND repair tip)
• 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)
• PSU defective. (with circuit diagram extract)
• Undefined Stereo Mono switchover.
• Difficult to set up east/west and width controls. (extract of circuit diagram attached)
• Replacing the EEPROM. (+ extract of circuit diagram)
• Very low secondary voltages. (extract of circuit diagram attached)
• No sound in scart. Sound and picture via the tuner. The appliance does not pick up anything. (+ extract of circuit diagram)
• Sound was OK but there was no vision for the first 10 mins after switch on. (picture attached) (OTTOVERSAND - 704025 information)
• HV capacitor burns. (+ extract of circuit diagram)
• Loud noises from speaker. Picture OK .
• Stuck on channel 1.
• Secondary voltage cannot be adjusted lower than 160V. PSU however can be regulated with this voltage.
• Vertical sync does not stop. (part of circuit diagram displayed)
• Does not stop at stations. Station search OK. (part of circuit diagram displayed)
• TV starts, has raster but no image and no sound. Display shows "FO". (+ extract of circuit diagram)
• Functions but heat sink gets very hot after 10 mins. When put into standby, noise in the PSU. (picture attached)
• No light lit. (picture attached)
• Doesn't switch into standby. Green LED goes orange and flashes after pressing standby key .
• No sound at some stations or audio failure. Via scart OK.
• No linearity. (with circuit diagram extract)
• E/W fault. No E/W correction. (extract of circuit diagram attached)
• Vertical size varies. Vertical jitter.
• With Blackline picture tubes occasional or random OSD insertion.
• Trapezoid picture. No E/W correction.
• Mains fuse O/C and BUT S/C. (part of circuit diagram displayed)
• Defective T7545. (part of circuit diagram displayed)
• Interference in picture. No picture. No audio. (picture attached)
• No chopper power supply. (+ extract of circuit diagram)
• Reduced horizontal size. Vertical foldover. in the centre. (with circuit diagram extract)
• No deflection. Horizontal line. (OTTOVERSAND - 704025 information)
• Red picture. after a while. (+ extract of circuit diagram)
• Over oscillations below collector BUT18. (extract of circuit diagram attached)
• No colour. when cold. Poor colour. after warm-up. (part of circuit diagram displayed)
• Blows components. at start-up. (with circuit diagram extract)
• Excessive red.
• Blue picture. after a while. (extract of circuit diagram attached)
• No functions. No button operation. (extract of circuit diagram attached)
• Distorted picture. at top. (extract of circuit diagram attached)
• Appliance starts up with the variac until it reaches 100V and then the appliance fails. (+ extract of circuit diagram)
• Dead. Soft ticking sound.
• Intermittent line and raster synchro. (extract of circuit diagram attached)
• Line output transistor fails repeatedly. after start-up.
• Starts without picture and audio then switches off after a few seconds.
• Switching transistor T7625 has failed. (extract of circuit diagram attached)
• No function. Buzzing noise. (picture attached)
• Low contrast. (picture attached)
• Picture and sound drop out. Appliance jumps to channel 1.
• Local dooming. (picture attached)
• TS7625 (BUT 18AF) fails again. (with circuit diagram extract) (service info for OTTOVERSAND -704025)
• No horizontal synchronisation. intermittently. (with circuit diagram extract)
• Horizontal stripe. (with circuit diagram extract)
• No picture, teletext and sound are fine. (extract of circuit diagram attached)
• Replacing TDA2579. (picture attached)
• Poor horizontal centering. (picture attached)
• PSU no function.
• BUT11AF S/C. (picture attached)
• No picture and no sound. (+ extract of circuit diagram)
• Power supply fuse (18A) defective after 1 hr or less. (extract of circuit diagram attached)
• Frayed vertical lines. (+ extract of circuit diagram)
• 185V instead of 148V. When taking a measurement on collector of TZ 7652, bulb goes off. (picture attached)
• Mono/Stereo-indication switches. (+ extract of circuit diagram)
• Horizontal line in the middle of screen.
• Does not go into standby. LED becomes orange but picture remains. (extract of circuit diagram attached)
• +148V drops to 100V occasionally according to the tube output. (+ extract of circuit diagram)
• Flash over on picture tube print.
• End stage transistor BU508 fails repeatedly at switch on. (+ extract of circuit diagram)
• After about 3 to 4 weeks of regular play, the BUT18 and the main fuse automatically blow. (with circuit diagram extract)
• Luminance takes a long time to appear. Distorted picture, focus pot does not react sufficiently. (with circuit diagram extract) (704025 tip from OTTOVERSAND)
• Line output stage periodically fails. (+ extract of circuit diagram)
• Light green picture despite adjusting. Impossible to get red. (with circuit diagram extract)
• Phase fault. (part of circuit diagram displayed)
• CTV functions one day. (+ extract of circuit diagram)
• BUT11A fails after operating for long time. (extract of circuit diagram attached)
• EHT problems. (picture attached)
• Line transformer noise. (+ extract of circuit diagram)
• Replacement of TDA8451 (IC7305). (picture attached)
• Severe crossover distortion in left channel.
• Over-voltage circuit active. (picture attached)
• Picture width changes according to its content. Linear distortion on right and left sides over 5cm (no ondulation).
• PSU has no function.
• Poor RC sensitivity.
• Intermittently line tearing in picture at the edges. (OTTOVERSAND - 704025 information)
• No colour in French standard. (part of circuit diagram displayed)
• Intermittently blown Wickman fuse 1534.
• Vertical collapse. intermittently. (+ extract of circuit diagram)
• No picture. No display. Erratic functions. (with circuit diagram extract) (704025 tip from OTTOVERSAND)
• Vertical lines. on the left. Excessive brightness. (picture attached)
• Picture stretched at top, compressed at bottom with black bar. Picture improves when warm. (picture attached)
• Picture shifted vertically.
• F5 displayed on a screen corner. Occasionally channels switch over to channel 1 or TV switches off.
• Set not regulating after SOPS re-build of secondary side of PSU. (+ extract of circuit diagram)
• 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)
• Black horizontal lines. (+ extract of circuit diagram)
• Voltage too low. (part of circuit diagram displayed)
• PSU repeatedly blows up. (+ extract of circuit diagram)
• Erratic functions. (with circuit diagram extract)
• Coloured flash on channel change and VCR features. (extract of circuit diagram attached)
• When switching on, HV part hums. No control function is possible. (extract of circuit diagram attached)
• Does not store settings. (part of circuit diagram displayed)
• When put into standby tube remains lit. Picture cuts out normally. (with circuit diagram extract) (OTTOVERSAND - 704025 information)
• T7637 blown. (with circuit diagram extract)
• Intermittent black picture with TXT. Intermittent TXT in picture.
• BUT18 and rectifier bridge blow every two days even after modifications.
• S/C in EHT stage. (extract of circuit diagram attached)
• Capacitor 2545 in PSU burns. (+ extract of circuit diagram)
• Line output transistor fails repeatedly. after a while. (extract of circuit diagram attached)
• The screen is white and there is no sound. The line transistor blows after 5 minutes. (+ extract of circuit diagram)
• No picture or narrow streak after warm-up. (+ extract of circuit diagram) (704025 tips)
• No audio. after a while. (+ extract of circuit diagram)
• Intermittent memory problem.
• Snow on screen and no reception. F4 displayed on screen. Green LED lit. (with circuit diagram extract) (704025 tip from OTTOVERSAND)
• 148V measures 60V. (extract of circuit diagram attached)
• Destruction of the power supply BU. (extract of circuit diagram attached)
• 17V instead of 140V. (picture attached)
• No colours at start up 50% of the time on satellite channels. OK in HF and VCR. (extract of circuit diagram attached)
• The horizontal centering cannot be adjusted correctly. It may have shifted after the appliance has warmed up.
• Sometimes the BUT18AF goes defective. (picture attached)
• Fails occasionally.
• The resistors 3661 and 3662 burn in standby, TS7625 is also defective sometimes. (extract of circuit diagram attached)
• Pulsating, no start up. (with circuit diagram extract) (OTTOVERSAND - 704025 information)
• No TXT. (+ extract of circuit diagram)
• No start-up from standby with RC.
• Intermittent power supply shut down, the picture goes off for a split second, the display flickering in sympathy.
• Excessive vertical size. (with circuit diagram extract)
• No tuner reception. Search display functions well but appliance does not pick up any channel. (+ extract of circuit diagram)
• The line transistor blows after 5 minutes. (part of circuit diagram displayed)
• Noise in picture. (with circuit diagram extract)
• Occasionally standby thyristor 6670 S/C. (extract of circuit diagram attached)
• The appliance functions correctly in standard B,G but the sound hums in F standard. (extract of circuit diagram attached)
• Error message F7 appears in the first 2 mins. No operation possible. (part of circuit diagram displayed)
• Top of text is ringing. Intermittent text.
• Power supply BU blows after a few days.
• No channels.
• Narrowing of line and frame then flashing of the picture. Screen turns dark after 10 mins. Picture ok when cold. (part of circuit diagram displayed)
• With Blackline picture tubes in the EXT1-Mode a white field is visible on the right side.
• No picture. when cold. (with circuit diagram extract) (704025 tips)
• Thyristor pos. 6670 fails. (part of circuit diagram displayed)
• Power supply blows when put into standby. (picture attached)
• Colour flickering during video editing.
• Ragged verticals.
• Protective circuit starts up. (picture attached) (704025 tips)
• Picture fault in tuner and scart.
• Can not be switched off in Standby position. When starting, LED becomes orange and blows. (part of circuit diagram displayed)
• Stretched picture. at top. Reduced raster size. at bottom. (part of circuit diagram displayed)
• Blows chopper transistor when switching on with remote. (+ extract of circuit diagram)
• How to check the power supply without blowing BUT18AF.
• Switches off during operation. When it is switched on again crackling is heard from HT. (+ extract of circuit diagram)
• Low brightness (even after turning up the preset in the U200 module).
• Orange spots on the right of the screen.
• Flickering text and apparent tuning drift.
• Line pairing at top half of the picture (with circuit diagram extract)
• Repeated failure of CRT.
• Egg-shaped picture, picture is pushed upwards. Underneath 5cm black bar. (extract of circuit diagram attached)
• Oval picture.
• No functions. LED lit. . (part of circuit diagram displayed)
• Blows components. after a few minutes. (+ extract of circuit diagram)
• Occasionally picture seems to be coded on all the channels especially when cold. (extract of circuit diagram attached)
• S/C on deflection circuit. (extract of circuit diagram attached)
• No tuning. intermittently. (part of circuit diagram displayed)
• Picture looks as if it were encoded (like on C+ channel). Sound is OK.
• PSU blown. (OTTOVERSAND - 704025 information)
• Picture jitters. when cold. (extract of circuit diagram attached)
• Vertical roll. when cold. (extract of circuit diagram attached)
• 148V does not go pass 20V. (extract of circuit diagram attached)
• Protection of T7625 (BUT18AF). (extract of circuit diagram attached)
• No TXT. Intermittent green dots or lines through picture. Black screen.
• Picture leans too much to one side, Black line visible in the picture. (extract of circuit diagram attached)
• Intermittent failure thyristor 6670 in STANDBY mode. (+ extract of circuit diagram)
• Power supply crackles when power supply is low. (extract of circuit diagram attached)
• Poor linearity. (picture attached)
• No colours. After approx an hour colours appear with fluctuations. (with circuit diagram extract)
• Power supply is often destroyed when left in standby. (picture attached)
• Vertical collapse. after a few minutes. Audio OK .
• On the test picture, distorted, vertical lines at top and bottom of the screen. (extract of circuit diagram attached)
• Faded picture. No contrast. (part of circuit diagram displayed) (704025 OTTOVERSAND repair tip)
• Set dead, power supply refuses to start. Also intermittent start and no standby (with circuit diagram extract)
• No picture. TXT OK . (extract of circuit diagram attached)
• Impossible to adjust horizontal shift of picture using R3595. (with circuit diagram extract)
• Vertical defective, too large line space in upper picture third. Linearity fault. (+ extract of circuit diagram)
• Buzzing from PSU. in standby. (picture attached)
• Reduced vertical size at bottom.
• Slow start-up. Audio OK . (picture attached)
• Reduced horizontal size. after a while. (with circuit diagram extract)
• Chopper transistor (BUT18AF), rectifier diodes and mains fuse become defective instantly. (+ extract of circuit diagram)
• Dead. Red LED blinks. (with circuit diagram extract) (704025 tip from OTTOVERSAND)
• No horizontal deflection. (with circuit diagram extract)
• Thyristor TR7670 breaks down after two days (loose contacts). (extract of circuit diagram attached)
• Black stripe on left edge of screen. Horizontal linearity is not correct. (part of circuit diagram displayed)
• Blows chopper transistor at switch on.
• No OSD. intermittently. (part of circuit diagram displayed) (704025 OTTOVERSAND repair tip)
• Functions with an automatic transformer up to 110, 120V. (extract of circuit diagram attached)
• Defective SOPS. (+ extract of circuit diagram)
• No function, only hums. (with circuit diagram extract)
• Dark background and a band of colour on the right. (extract of circuit diagram attached)
• Horizontal stripe. intermittently. (part of circuit diagram displayed)
• Flashing picture. (+ extract of circuit diagram)
• Problems with flof TXT. Cannot find p.811 in spite of it being sent out. TXT header remains with subtitling. (with circuit diagram extract)
• The picture is indented (horizontally).
• No brightness. No audio. Raster OK . (picture attached)
• Contrast variations with subtitling in sets with BL-CRT. (part of circuit diagram displayed)
• TV blocks on 600MHZ. If you do a frequency search, it goes through all frequencies but does not find any channels. (+ extract of circuit diagram)
• Blocked. (extract of circuit diagram attached)
• Raster signal problem.
• Appliance only functions until the 120V is reached with the variac. When the mains voltage is increased the appliance fails. (with circuit diagram extract)
• Vertical bar. on the left. (part of circuit diagram displayed)
• No raster. (part of circuit diagram displayed)
• S/C in line output stage (7645). (with circuit diagram extract) (704025 tips)
• Dark picture. at bottom. Stretched picture. at top. (with circuit diagram extract)
• POR signal too low. (part of circuit diagram displayed)
• Excessive brightness. (with circuit diagram extract)
• Picture flickers intermittently, sound disappears. Picture reappears by itself, sound doesn't but can be activated with the RC.
• PSU becomes defective after switch on via mains switch.
• No picture. Grey screen. Brightness control works normally. (with circuit diagram extract)
• No vertical deflection. Horizontal line. (extract of circuit diagram attached)
• East/west raster distortion: width and shaping control do not function. (704025 OTTOVERSAND repair tip)
• Usys voltage of line output stage collapses to approx 48V. (extract of circuit diagram attached)
• Does not switch on from standby. LED blinks and goes off or changes to red and then no more functions.
• Appliance fails and later comes back unprompted. (picture attached)
• Crackling from FBT and black vertical bars on screen for a few secs after start up. (extract of circuit diagram attached)
• No synchronisation.
• No sound or picture. Appliance appears to be in AV. (picture attached)
• Red light flashes for approximately 3 seconds then zero. (OTTOVERSAND - 704025 information)
• No colour. intermittently. (part of circuit diagram displayed) (704025 tip from OTTOVERSAND)
• Vertical synchronisation fault when hot and presence of white line, then picture disappears (extract of circuit diagram attached)
• PSU blocking. (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)
• Ticking sound. (+ extract of circuit diagram)
• Switches off after operation time. LED goes off. Dead. Can be turned on via mains switch, then switches off again after operation time.
• Line output transformer failure.
• No start-up. (+ extract of circuit diagram)
• No synchronisation. intermittently. (part of circuit diagram displayed)
• Ghosts and poor colours. (+ extract of circuit diagram)
• Line output transistor fails repeatedly. intermittently. (extract of circuit diagram attached)
• No MONO audio. STEREO OK . (picture attached)
• Chopper transistor failure. (picture attached)
• 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. (part of circuit diagram displayed)
• No function. On start-up easy chirp is audible. (part of circuit diagram displayed)
• Power supply problem. (extract of circuit diagram attached)
• No picture. F4 lights up in the display. (with circuit diagram extract)
• Spare part info: Value of C2546 and C2545 near line output transformer.
• No tuning. (704025 OTTOVERSAND repair tip)
• The bottom half of the raster is missing, with the top cramped.
• Humming noise from transformer. Line output transistor fails repeatedly. (part of circuit diagram displayed)
• E-W output stage fails as soon as the appliance is switched on. Fuse 1534 (315mA) also fails. (with circuit diagram extract)
• Vertical collapse. (extract of circuit diagram attached)
• Thyristor fails in PSU in standby. Otherwise appliance OK. (part of circuit diagram displayed)
• Frizzy lines on the picture. (704025 OTTOVERSAND repair tip)
• No blue. (with circuit diagram extract)
• Vertical bars on channels 2 and 4 (picture attached)
• Picture is stretched - begins 5cms from bottom of the screen and is missing approx 1cm East/West. Appliance functions. (+ extract of circuit diagram)
• Line transistor 7545 fails after approx. 3 secs. (picture attached)
• Goes dead when switched to standby by RC. No standby LED. Switching on and off at mains, restores normal functions (part of circuit diagram displayed)
• 148V at approx 30V. (part of circuit diagram displayed)
• Does not switch to standby. Picture remains on screen. (+ extract of circuit diagram)
• No picture. No audio. OK via SCART . (+ extract of circuit diagram)
• Dark picture. Audio OK . (extract of circuit diagram attached)
• Appliance runs ok, but if remote used to switch to standby, appliance goes dead. (with circuit diagram extract)
• Line output transistor defective. (part of circuit diagram displayed)
• Connection of a loop system to the TV.
• Shuts down. after a few minutes. (+ extract of circuit diagram)
• Dead. intermittently. (OTTOVERSAND - 704025 information)
• White picture on the right side in EXT1 mode.
• Character error.
• Line BU blows after operating for 3-5 mins. (picture attached) (704025 OTTOVERSAND repair tip)
• Line BU keeps failing. (picture attached)
• No regulation. (part of circuit diagram displayed) (service info for OTTOVERSAND -704025)
• Picture linearity error. Picture has shifted towards top. Picture folds over at the bottom.
• Coloured spots in picture (local dooming). (picture attached)
• Audio drop out or mute.
• No sound or vision, display going to F1.
• Power supply BU and fuse are defective when TV started up from standby. Occurs every week or fortnight and is very variable. (extract of circuit diagram attached)
• No E/W.
• No colour. Coloured bars in picture. OK after a few minutes. (extract of circuit diagram attached)
• Slow start-up. (+ extract of circuit diagram)
• No audio. Picture OK . (with circuit diagram extract)
• Videotext has turbulent text content in upper section.
• Wavy picture. via AV.
• Dark screen. LED is green. (with circuit diagram extract)
• Tuning unstable. (extract of circuit diagram attached)
• Poor width regulation with brightness. (picture attached) (704025 tip from OTTOVERSAND)
• Horizontal line. in the centre. (extract of circuit diagram attached)
• Retrace lines. intermittently.
• Blurry picture.
• Causes for appliance going into safety mode.
• Vertical foldover at bottom. (with circuit diagram extract)
• Search stops with good tuning.
• OSD partly disappeared from the screen in BL sets. (part of circuit diagram displayed) (704025 OTTOVERSAND repair tip)
• Primary PSU switches off. No standby LED.
• Blows chopper transistor. (with circuit diagram extract)
• 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.
• Dark streak on screen.
• No functions. intermittently.
• Supply transistor BUT18A becomes defective immediately after switching on the appliance. (part of circuit diagram displayed)
• No sound, even with in or out scart. (704025 tip from OTTOVERSAND)
• No HV. (picture attached)
• Set functions with the variac but BUT11AF blows when appliance is plugged in. (picture attached)
• References for transistors 7615 and 7612.
• Set does not start-up after implementing SOPS kit. (+ extract of circuit diagram) (704025 OTTOVERSAND repair tip)
• Intermittently BUT18 defective after switching on. (with circuit diagram extract)
• The output transistor of the power supply is defective. BUT11AF or 2SC3973B.
• No colour in SECAM and PAL. Colour may appear slightly in SECAM when warm. (with circuit diagram extract)
• Brightness differences in picture. (picture attached)
• R3368 and R3369 burn up at switch on. (part of circuit diagram displayed)
• Poor vertical linearity. Reduced vertical deflection. (with circuit diagram extract)
• Blows fuse. after a few hours. (part of circuit diagram displayed)
• No contrast control. (part of circuit diagram displayed)
• Appliance hums in Standby. (service info for OTTOVERSAND -704025)
• 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)
• TV blocked in F3.
• BUT18, R3570 and F1534 blow. (part of circuit diagram displayed)
• Nasal sound on channels 5 and 6. (part of circuit diagram displayed)
• No synchronisation. when cold. (part of circuit diagram displayed)
• No sound when input connection made via 2 S-VHS phono sockets.
• No picture and sound. Buzz from power supply transformer.
• Change in picture width depending on beam current. (picture attached)
• White square in a corner of the screen. (with circuit diagram extract)
• Switching transistor in power supply goes short circuit (BUT18).
• Finds emitters during channel search but does not stop. (with circuit diagram extract)
• Purity fault. (part of circuit diagram displayed)
• Line end-stage has no function.