703769 / OTTOVERSAND [TV]

• No colour. Coloured bars in picture. OK after a few minutes. (extract of circuit diagram attached)
• Channels run through. (extract of circuit diagram attached) (703769 tip from OTTOVERSAND)
• Local dooming, especially with high contrast. (part of circuit diagram displayed)
• The front control panel changes channels upwards but not downwards. All other functions OK.
• Power supply fuse (18A) defective after 1 hr or less. (extract of circuit diagram attached)
• Buzz in audio. (picture attached)
• No sound, even with in or out scart. (service info for OTTOVERSAND -703769)
• Vertical collapse. after a few minutes. Audio OK .
• BUT transistor becomes S/C either at switch on or after a certain period of time. (picture attached)
• S/C in line output stage (7645). (extract of circuit diagram attached)
• No synchronisation. when cold. (+ extract of circuit diagram)
• Does not stop at stations. Station search OK. (with circuit diagram extract)
• Sound was OK but there was no vision for the first 10 mins after switch on. (with circuit diagram extract)
• 148V at approx 30V. (picture attached)
• No functions. intermittently. LED blinks . Shuts down. (picture attached)
• 6cm black bar at bottom of picture.
• No switching into CCIR standard. Display ok in SECAM and PAL/SECAM. (extract of circuit diagram attached)
• Appliance only functions until the 120V is reached with the variac. When the mains voltage is increased the appliance fails. (+ extract of circuit diagram)
• Picture flickers the first 5 minutes. Gradually becomes less but very visible in the dark portions of the screen.
• Picture shakes.
• PSU repeatedly blows up. (+ extract of circuit diagram)
• When put into standby tube remains lit. Picture cuts out normally. (extract of circuit diagram attached)
• PSU repair. (picture attached) (703769 tip from OTTOVERSAND)
• Set functions with the variac but BUT11AF blows when appliance is plugged in. (extract of circuit diagram attached)
• Excessive red. (703769 tip from OTTOVERSAND)
• TXT problem. Some characters do not display.
• White square in a corner of the screen. (picture attached)
• Dark screen. LED is green. (with circuit diagram extract)
• White picture with flyback lines. (picture attached) (703769 tip from OTTOVERSAND)
• Intermittently BUT18 defective after switching on. (with circuit diagram extract)
• Modification: Colour decoder chip IC7260.
• Supply transistor BUT18A becomes defective immediately after switching on the appliance. (picture attached) (703769 tip from OTTOVERSAND)
• Appliance works for 4 hours and then cuts out completely.
• Switching transistor in power supply goes short circuit (BUT18).
• Switching transistor T7625 has failed. (+ extract of circuit diagram)
• Black screen. Audio OK . (part of circuit diagram displayed)
• Retrace lines. intermittently.
• No colour. (+ extract of circuit diagram)
• Microprocessor/eprom screening plate. (part of circuit diagram displayed)
• +120V instead of +148V. (part of circuit diagram displayed)
• Protection of T7625 (BUT18AF). (picture attached)
• Goes to blank screen with unlocked TXT lines when TXT selected.
• Set does not start-up after implementing SOPS kit. (with circuit diagram extract)
• Distorted vertical lines at top and bottom of monoscope. E/W correction is faulty. (with circuit diagram extract)
• The sound fails: after changing over to a different channel, the sound is back. (part of circuit diagram displayed)
• Error message F7 appears in the first 2 mins. No operation possible. (with circuit diagram extract)
• As the set warms up the picture flashes cyan every few seconds. (with circuit diagram extract)
• Picture is stretched - begins 5cms from bottom of the screen and is missing approx 1cm East/West. Appliance functions. (picture attached)
• BUT11 becomes defective after 3 days of use. (extract of circuit diagram attached)
• No quick start pulse. (with circuit diagram extract)
• Noise in audio.
• Noise in picture. (picture attached)
• Unadjustable horizontal centering. (part of circuit diagram displayed)
• Intermittent colour.
• No TXT. (with circuit diagram extract)
• Picture leans too much to one side, Black line visible in the picture. (part of circuit diagram displayed) (OTTOVERSAND - 703769 information)
• When switched to standby U1 becomes 60V. PSU goes to limiting. (with circuit diagram extract)
• No start-up. intermittently. (+ extract of circuit diagram)
• PCD8582 and X2402 memory. (with circuit diagram extract)
• No picture. TXT OK . (part of circuit diagram displayed)
• Brightness differences in picture. (picture attached)
• Vertical collapse. intermittently. (with circuit diagram extract)
• Appliance starts intermittently with no standby. (picture attached)
• Picture collapses. Pincushion distortion. (picture attached)
• Secondary voltage cannot be adjusted lower than 160V. PSU however can be regulated with this voltage.
• When switching on, HV part hums. No control function is possible. (picture attached)
• Blocked. (picture attached)
• Distorted picture. (+ extract of circuit diagram)
• Faulty TXT. No TXT. intermittently.
• Picture and sound drop out. Appliance jumps to channel 1.
• Horizontal deflection BU fails after a few hours.
• Picture width changes according to its content. Linear distortion on right and left sides over 5cm (no ondulation).
• 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. (+ extract of circuit diagram)
• Occasionally standby thyristor 6670 S/C. (with circuit diagram extract)
• PSU fails after a short time (S/C of BUT18AF). (picture attached)
• Blank raster. No tuning.
• Buzzing from PSU. Motorboating noise from speakers. in standby. (part of circuit diagram displayed)
• Poor field linearity. (703769 tip from OTTOVERSAND)
• To give improved protection to the BUT11AF chopper transistor TR7665. (703769 OTTOVERSAND repair tip)
• PSU transistor (BUT18A) becomes defective right after start-up.
• Stretched picture. at top. Reduced raster size. at bottom. (with circuit diagram extract)
• No sound or picture. Appliance appears to be in AV. (part of circuit diagram displayed)
• Too high power supply. (picture attached) (OTTOVERSAND - 703769 information)
• Extra protection for chopper transistor TR7625 (BUT18AF). (extract of circuit diagram attached)
• Error codes. (+ extract of circuit diagram)
• Snow on screen and no tuner reception. F3 displayed on screen. Green LED on.
• TV starts, has raster but no image and no sound. Display shows "FO". (+ extract of circuit diagram)
• If mains switched off when in standby, it does not start up again. Light off. (extract of circuit diagram attached)
• Dark screen. in TXT.
• TV locked by and keys.
• Poor regulation. (extract of circuit diagram attached)
• Value of 3525 in the vertical amplifier situated in front of the line transformer towards tube 4 beside cushion 3521.
• No colour in SECAM and PAL. Colour may appear slightly in SECAM when warm. (extract of circuit diagram attached) (703769 tips)
• No start-up. Standby LED does not light. (part of circuit diagram displayed)
• Flash over on picture tube print. (703769 tip from OTTOVERSAND)
• When switched off with RC, does not switch on again and LED remains off. (picture attached)
• Contrast variations with subtitling in sets with BL-CRT. (part of circuit diagram displayed)
• No adjustment from PSU possible. (+ extract of circuit diagram)
• PSU no function.
• No start-up with mains switch after switched off from standby.
• E/W fault. No E/W correction. (with circuit diagram extract)
• Blank screen. Audio OK .
• Blows chopper transistor when switching on with remote. (+ extract of circuit diagram)
• Power supply goes into safety mode and crackles. (extract of circuit diagram attached) (OTTOVERSAND - 703769 information)
• Colour blobs in the picture.
• Over-voltage circuit active. (extract of circuit diagram attached)
• Local dooming / PP-settings. (with circuit diagram extract)
• Protection for BUT18AF in PSU.
• On channels 2 and 4 vertical lines on the left hand side of the picture.
• Reduced horizontal size. after a while. (with circuit diagram extract)
• Local dooming - spots in the picture.
• Line transistor 7545 fails after approx. 3 secs. (extract of circuit diagram attached)
• Intermittently line tearing in picture at the edges.
• Frizzy lines on the picture. (703769 OTTOVERSAND repair tip)
• When warm, picture foldover and the line BU blows. (picture attached)
• Does not store settings. (with circuit diagram extract)
• Thyristor TR7670 breaks down after two days (loose contacts). (picture attached)
• EXT1 switchover is defective, terrestrial program remains.
• Loud noises from speaker. Picture OK .
• The screen is white and there is no sound. The line transistor blows after 5 minutes. (with circuit diagram extract)
• Intermittent memory problem.
• No contrast control. (picture attached) (703769 OTTOVERSAND repair tip)
• No colour in French standard. (picture attached)
• Connection of a loop system to the TV.
• Severe crossover distortion in left channel.
• Insufficient picture height which can be adjusted. Poor E/W.
• No channels.
• Line output transistor fails repeatedly. after start-up.
• Change in picture width depending on beam current. (picture attached)
• E-W output stage fails as soon as the appliance is switched on. Fuse 1534 (315mA) also fails. (picture attached)
• Horizontal line. in the centre. (+ extract of circuit diagram)
• PSU chirps. (with circuit diagram extract)
• Line end stage U/syst collapses to approx. 48V. (with circuit diagram extract)
• Humming noise from transformer. Line output transistor fails repeatedly. (extract of circuit diagram attached)
• Poor vertical linearity. Horizontal size varies. (extract of circuit diagram attached)
• Vertical shift incorrect, after replacing a 28" BL-CRT. (picture attached)
• Dark picture. Audio OK . (+ extract of circuit diagram)
• Slow start-up. Audio OK . (+ extract of circuit diagram)
• PSU varies according to picture content when warm. (+ extract of circuit diagram)
• No red. (with circuit diagram extract)
• Line transformer noise. (part of circuit diagram displayed)
• No luminance. (with circuit diagram extract)
• No deflection. Horizontal line.
• 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 attached)
• Nasal sound on channels 5 and 6. (+ extract of circuit diagram)
• S/C on deflection circuit. (picture attached)
• Picture takes some time to appear. Dark screen then TV stops. Round colour spot which slowly disappears. (extract of circuit diagram attached)
• Faded picture. No contrast. (extract of circuit diagram attached)
• Slow start-up. Switches to standby. (with circuit diagram extract)
• 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. (+ extract of circuit diagram)
• Jagged picture. (picture attached)
• Repeated failure of CRT.
• Picture flickers intermittently, sound disappears. Picture reappears by itself, sound doesn't but can be activated with the RC.
• No picture, teletext and sound are fine. (extract of circuit diagram attached)
• Intermittently blown Wickman fuse 1534.
• BU508, Q7593 and Q7594 are defective. (extract of circuit diagram attached)
• No picture. No brightness. No sound. Picture tube filament on.
• Vertical bars on channels 2 and 4 (part of circuit diagram displayed)
• No or poor synchronisation.
• Flickering text and apparent tuning drift.
• No sound. No response to commands from both RC and front panel. Error message F2 on screen. Picture ok. (picture attached)
• TXT has no function. TXT is activated but only dark screen.
• Coloured spots in picture (local dooming). (+ extract of circuit diagram)
• No audio. F2 error.
• Blows components. after a few minutes. (extract of circuit diagram attached)
• No E/W correction. (+ extract of circuit diagram)
• When cold, picture takes approx 2.5 mins to appear instead of 15 secs. When warm it takes 20 secs. (with circuit diagram extract)
• Blows components. at start-up. (with circuit diagram extract)
• Picture pulsates on white background.
• Poor horizontal centering. (extract of circuit diagram attached)
• Dark picture. Picture rolls. Picture shifted to the left. Flickering picture. (picture attached)
• Flashing picture. (extract of circuit diagram attached)
• Horizontal, bright line.
• Dark picture with thin vertical stripe in upper picture. (part of circuit diagram displayed)
• No colour. intermittently. (with circuit diagram extract)
• No picture. Bright raster. Flyback lines. Audio OK . (picture attached)
• Horizontal shift no function.
• Power supply crackles when power supply is low. (extract of circuit diagram attached)
• Negative picture when cold and sometimes intermittently. (picture attached)
• In Standby BUT18AF (T7625) becomes defective.
• No picture. F4 lights up in the display. (extract of circuit diagram attached)
• Starts up again then clicks after a few mins. PSU faled again. (extract of circuit diagram attached)
• Dead set caused by lightning damage. (part of circuit diagram displayed)
• Occasionally picture seems to be coded on all the channels especially when cold. (extract of circuit diagram attached)
• Horizontal stripe. intermittently. (picture attached)
• Horizontal white line. (with circuit diagram extract)
• Vertical linearity is upwards a little sharp. Picture has shifted upwards. (picture attached)
• Reduced raster size. (part of circuit diagram displayed)
• After switch on the picture is sometimes shifted and a black horizontal bar appears in the centre of the picture. (extract of circuit diagram attached) (703769 OTTOVERSAND repair tip)
• Humming noise from transformer. in standby. (with circuit diagram extract)
• Blue picture. after a while. (+ extract of circuit diagram)
• Dead. Humming noise from transformer. (+ extract of circuit diagram)
• Appliance does not start up. Crackling. (with circuit diagram extract)
• Black horizontal lines. (with circuit diagram extract)
• Erratic functions. (extract of circuit diagram attached)
• Start with interfering voltage. (+ extract of circuit diagram)
• BUT11AF S/C. (part of circuit diagram displayed)
• Audio drop out or mute.
• Intermittent fault all over the screen or over an irregular width band leading to line foldover, similar to coded Canal Plus picture. (with circuit diagram extract)
• No picture, only horizontal stripe on top. Picture appears only after a long while. Then picture collapses to a horizontal stripe in the centre.
• BU508AF fails repeatedly. (extract of circuit diagram attached)
• Chopper transistor (BUT18AF) fails if appliance is switched on from standby. (+ extract of circuit diagram) (703769 OTTOVERSAND repair tip)
• Diode D6653 installation sops kit.
• OSD partly disappeared from the screen in BL sets. (picture attached) (OTTOVERSAND - 703769 information)
• F5 displayed on a screen corner. Occasionally channels switch over to channel 1 or TV switches off.
• Dead. intermittently.
• No function, only hums. (picture attached)
• Power supply is often destroyed when left in standby. (picture attached)
• EHT problems. (picture attached)
• No light lit. (+ extract of circuit diagram)
• Switches off during operation. When it is switched on again crackling is heard from HT. (+ extract of circuit diagram)
• Oval picture.
• Luminance takes a long time to appear. Distorted picture, focus pot does not react sufficiently. (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. (part of circuit diagram displayed)
• Local dooming. (picture attached)
• No picture. when cold. (picture attached)
• One single line in the middle of the screen. (part of circuit diagram displayed)
• HT varies intermittently.
• Starts without picture and audio then switches off after a few seconds.
• Does not go into standby. LED becomes orange but picture remains. (part of circuit diagram displayed)
• Spare part info: values of C2546, C2547 and C2545, located on collector of T7545. (part of circuit diagram displayed)
• Vertical deflection is defective. A piece is missing at the bottom and at the top the lines are pulled apart. (extract of circuit diagram attached)
• Contrast adjustment inoperative, colour streaks. (part of circuit diagram displayed) (703769 tips)
• Crackle a few seconds after Power On. (part of circuit diagram displayed)
• Black stripe on left edge of screen. Horizontal linearity is not correct. (+ extract of circuit diagram)
• Can not be switched off in Standby position. When starting, LED becomes orange and blows. (with circuit diagram extract)
• With Blackline picture tubes in the EXT1-Mode a white field is visible on the right side. (service info for OTTOVERSAND -703769)
• Regulation does not function without a load. (+ extract of circuit diagram)
• No MONO audio. STEREO OK . (+ extract of circuit diagram)
• Power supply problem. (+ extract of circuit diagram) (OTTOVERSAND - 703769 information)
• Frayed vertical lines. (extract of circuit diagram attached)
• Replacing TDA2579. (+ extract of circuit diagram)
• On the test picture, distorted, vertical lines at top and bottom of the screen. (picture attached) (OTTOVERSAND - 703769 information)
• Dark picture. intermittently. (+ extract of circuit diagram)
• Poor RC sensitivity.
• Picture is not linear. Black bar at bottom of picture. (with circuit diagram extract) (OTTOVERSAND - 703769 information)
• Top of text is ringing. Intermittent text. (OTTOVERSAND - 703769 information)
• Channel change impossible after a moment. Channel remains displayed and front LED becomes orange. (picture attached) (service info for OTTOVERSAND -703769)
• No brightness. No audio. Raster OK . (extract of circuit diagram attached) (703769 tips)
• BUT18 and rectifier bridge blow every two days even after modifications.
• No horizontal synchronisation. (part of circuit diagram displayed)
• High voltage unit is smouldered. (+ extract of circuit diagram)
• No functions. intermittently.
• Dead. Error code F1 displayed.
• Picture takes a long time to appear (several mins). (picture attached)
• No HT output voltage of 148V. Voltage is present (approx. 158V) when disconnecting HT coils connector. (with circuit diagram extract)
• Doesn't function with dummy load. (extract of circuit diagram attached)
• When switching on the appliance when it's cold, it takes about 35 seconds before the picture appears. (picture attached)
• No audio. Picture OK . (extract of circuit diagram attached)
• Blurry picture.
• No TXT, just lines on screen.
• Does not switch on from standby. LED blinks and goes off or changes to red and then no more functions.
• Low picture amplitude. Barrell-shaped picture. (picture attached) (OTTOVERSAND - 703769 information)
• 100V power supply is approx 35V. (with circuit diagram extract)
• Line output stage periodically fails. (with circuit diagram extract)
• White screen. Flyback lines. Shuts down. after a few seconds. (with circuit diagram extract)
• Dark picture. at bottom. Stretched picture. at top. (extract of circuit diagram attached)
• Reduced horizontal size. Vertical foldover. in the centre. (part of circuit diagram displayed)
• Poor E/W adjustment. Picture is narrow in the middle. (picture attached) (OTTOVERSAND - 703769 information)
• Displays error code F4. When you switch to standby again, F4 appears again. LED flashes. Only noise. (with circuit diagram extract)
• Horizontal stripe. (+ extract of circuit diagram)
• No picture. intermittently. (extract of circuit diagram attached)
• No TXT. Intermittent green dots or lines through picture. Black screen.
• No colour. when cold. Poor colour. after warm-up. (part of circuit diagram displayed)
• 185V instead of 148V. When taking a measurement on collector of TZ 7652, bulb goes off. (with circuit diagram extract)
• No picture or narrow streak after warm-up. (picture attached)
• No E/W.
• Stuck on channel 1.
• Defective line transistor. (picture attached) (703769 tips)
• 148=68V. (with circuit diagram extract)
• Vertical foldover at bottom. (+ extract of circuit diagram)
• No regulation. (with circuit diagram extract)
• Power supply BU blows after a few days.
• After start up, PSU fails. (extract of circuit diagram attached)
• Hum in audio. in standby. (with circuit diagram extract)
• Green picture. after a while. (picture attached)
• Occasionally BUT18 blows in standby. (picture attached)
• Poor picture synchronisation during station switch-over. Vertical picture jitter, runs through, poor picture via RF or EXT. (+ extract of circuit diagram)
• BU508 blows one min after HT transistor (BU508AF) has been replaced. Picture OK during this one min.
• +16V flashover. (+ extract of circuit diagram)
• The horizontal centering cannot be adjusted correctly. It may have shifted after the appliance has warmed up.
• Mono/Stereo-indication switches. (extract of circuit diagram attached)
• Raster signal problem.
• No functions. Power LED lit . (+ extract of circuit diagram)
• PSU has no function. (703769 tips)
• Fails in standby. (with circuit diagram extract)
• PSU fuse blown. (+ extract of circuit diagram)
• Picture rolls. (picture attached)
• Tripping. intermittently.
• Black screen. intermittently. (with circuit diagram extract)
• Line transistor S/C.
• Line BU keeps failing. (part of circuit diagram displayed)
• PSU becomes defective after switch on via mains switch.
• Appliance runs ok, but if remote used to switch to standby, appliance goes dead. (part of circuit diagram displayed)
• Primary PSU switches off. No standby LED.
• Ghosts and poor colours. (+ extract of circuit diagram)
• Width of picture pumps according to picture content and narrows with a strong white. (part of circuit diagram displayed)
• No synchronisation. (703769 OTTOVERSAND repair tip)
• Dark streak on screen.
• Horizontal size varies. (part of circuit diagram displayed) (703769 tip from OTTOVERSAND)
• PSU blocking. (picture attached)
• Thyristor goes S/C when switched to standby. (extract of circuit diagram attached) (703769 OTTOVERSAND repair tip)
• No signal on the BUT11AF collector. (picture attached)
• No chopper power supply. (extract of circuit diagram attached)
• Green spot after viewing a white object on the screen.
• BU508 blows after 1 or 2 days. (extract of circuit diagram attached)
• Line output transformer failure. (703769 OTTOVERSAND repair tip)
• Lacks contrast. No reaction on the plus or minus key of the contrast button. Other commands are ok.
• Vertical foldover at top.
• Line tearing and picture quiver at the edges.
• Hum bar.
• Service mode
• End stage transistor BU508 fails repeatedly at switch on. (picture attached)
• Voltage too low. (+ extract of circuit diagram)
• Does not switch to standby. LED turns pink. Picture remains. Sound mutes. (extract of circuit diagram attached)
• Phase fault. (with circuit diagram extract)
• Power supply breaks down. (with circuit diagram extract)
• Thyristor fails in PSU in standby. Otherwise appliance OK. (+ extract of circuit diagram)
• Chopper and line output transistors S/C. (picture attached)
• No picture, no sound, no display, 148V is reduced to approx 50V.
• No button operation. intermittently. (+ extract of circuit diagram)
• Horizontal line in the middle of screen. (703769 OTTOVERSAND repair tip)
• The line transistor blows after 5 minutes. (part of circuit diagram displayed)
• Lines in picture. on the left.
• Vertical foldover at top and bottom. (+ extract of circuit diagram)
• Cannot be switched to standby. After the first attempt appliance is blocked. (with circuit diagram extract)
• Line end-stage has no function.
• With high volume the appliance switches spontaneously to standby. (extract of circuit diagram attached) (service info for OTTOVERSAND -703769)
• Transistor 7545 (BU508AF) is blown. (part of circuit diagram displayed)
• No sound or picture. Snowy screen (picture with test signal). Vertical interference bars. (picture attached)
• Problems with flof TXT. Cannot find p.811 in spite of it being sent out. TXT header remains with subtitling. (extract of circuit diagram attached)
• Cramped at bottom with slight foldover.
• No operation. (+ extract of circuit diagram)
• POR signal too low. (part of circuit diagram displayed)
• Shuts down. after a while. LED blinks .
• Switching transistor of the SOPS power supply is defective. (extract of circuit diagram attached)
• Dark screen. via tuner. Audio and OSD OK . (part of circuit diagram displayed)
• Dark picture. No picture. via SCART. No audio. via SCART. No RC functions. (part of circuit diagram displayed)
• Switches off after operation time. LED goes off. Dead. Can be turned on via mains switch, then switches off again after operation time.
• BUT11A fails after operating for long time. (with circuit diagram extract) (703769 tips)
• Difficult to set up east/west and width controls. (with circuit diagram extract)
• Does not switch to standby. Horizontal line. LED blinks . (with circuit diagram extract)
• Picture linearity error. Picture has shifted towards top. Picture folds over at the bottom.
• Orange spots on the right of the screen.
• Vertical size varies. Vertical jitter.
• No sound or vision, display going to F1.
• In VCR there are only chroma lines. (extract of circuit diagram attached)
• Frame shrinks horizontally when changing brightness. (with circuit diagram extract)
• BUT11 in power supply defective after few days, or when in standby. (extract of circuit diagram 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)
• Undefined STEREO mono switch over. OSD mono STEREO display present. (+ extract of circuit diagram)
• BUT18 is defective. (+ extract of circuit diagram)
• Line BU508blows after 3 days. (extract of circuit diagram attached) (703769 tip from OTTOVERSAND)
• BUT18AF is defective and is destroyed when appliance is switched on. (part of circuit diagram displayed)
• Discharging noise. via speakers. (service info for OTTOVERSAND -703769)
• Buzzing from PSU. in standby. (part of circuit diagram displayed)
• Does not switch to standby. Picture remains on screen. (part of circuit diagram displayed)
• Reduced vertical deflection. intermittently. (part of circuit diagram displayed) (service info for OTTOVERSAND -703769)
• Interference in picture. No picture. No audio. (extract of circuit diagram attached) (service info for OTTOVERSAND -703769)
• Picture varies with beam current. (picture attached)
• Impossible to adjust horizontal shift of picture using R3595. (extract of circuit diagram attached)
• Low brightness (even after turning up the preset in the U200 module).
• Reduced format, flyback line slightly visible. (+ extract of circuit diagram)
• Tuning search does not stop when appliance has found a station. (part of circuit diagram displayed)
• Picture flickers intermittently, sound disappears. Picture reappears of itself, sound doesn't but can be activated with the RC.
• Blows chopper transistor at switch on.
• No picture, no sound. TV starts up and tube lights up. (+ extract of circuit diagram)
• No picture. Grey screen. Brightness control works normally. (extract of circuit diagram attached)
• Goes dead when switched to standby by RC. No standby LED. Switching on and off at mains, restores normal functions (+ extract of circuit diagram)
• Set not regulating after SOPS re-build of secondary side of PSU. (part of circuit diagram displayed)
• Intermittent failure thyristor 6670 in STANDBY mode. (with circuit diagram extract)
• Incorrect reception. 33V ok. Picture ok in scart.
• Trapezoid picture. No E/W correction.
• Ticking sound. (part of circuit diagram displayed)
• Fails occasionally.
• F4 displayed. LED flashes green then orange for slightly less than a sec. (+ extract of circuit diagram)
• No picture. in E-E. Audio OK .
• Searches for channels continuously. (picture attached)
• Weak contrast. No contrast control.
• 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.
• Fuse and PSU BU (BUT18AF) defective.
• Picture size varies with picture content. (picture attached)
• Colour flickering during video editing.
• No functions. LED lit. . (part of circuit diagram displayed)
• No picture. No audio. OK via SCART . (part of circuit diagram displayed)
• Single dark lines in picture centre.
• Vertical roll. when cold. (with circuit diagram extract)
• Switches immediately to protection mode. Functions OK when protection mode is switched off. (part of circuit diagram displayed)
• Slight E/W distortion. (part of circuit diagram displayed)
• Darker bar on left of screen. (+ extract of circuit diagram)
• Appliance works fine for hours, but after switching off with the remote control the BUT18 and mains fuse go defective. (picture attached)
• Functions but heat sink gets very hot after 10 mins. When put into standby, noise in the PSU. (picture attached)
• Vertical bar. on the left. (part of circuit diagram displayed) (703769 tips)
• BUT18AF (T7625) becomes defective in standby. (with circuit diagram extract)
• One colour missing.
• No horizontal deflection. (part of circuit diagram displayed)
• Starts, but only raster. Display shows "F3". (+ extract of circuit diagram)
• No red, green and blue go through correctly. TEA5101A and TDA8390 have been changed. (with circuit diagram extract)
• Replacement of TDA8451 (IC7305). (picture attached)
• Vertical sync does not stop. (part of circuit diagram displayed)
• Trips. (part of circuit diagram displayed)
• Smoke from +12V resistor. (picture attached)
• Picture shifted vertically.
• No switch on. Red LED flickers for 3 seconds.
• No function. On start-up easy chirp is audible. (+ extract of circuit diagram)
• Red standby light then dead at switch on. TV starts up on the variac. (extract of circuit diagram attached)
• Functions with an automatic transformer up to 110, 120V. (+ extract of circuit diagram)
• Tuning does not function, drifts, raster doubles up. Vertical sychronisation fault. (picture attached) (703769 tip from OTTOVERSAND)
• S/C from point 18 at line transformer to the ground. (+ extract of circuit diagram)
• Power supply too low (70V). (part of circuit diagram displayed)
• No horizontal synchronisation. intermittently. (extract of circuit diagram attached)
• No HV. (+ extract of circuit diagram) (OTTOVERSAND - 703769 information)
• Spare part info: Value of C2546 and C2545 near line output transformer. (703769 OTTOVERSAND repair tip)
• No teletext and OSD is hardly visible. The regular picture vibrates if appliance is switched to teletext. (picture attached)
• Tuning unstable. (+ extract of circuit diagram)
• The picture is indented (horizontally).
• Sound is noisy. (service info for OTTOVERSAND -703769)
• Intermittent line and raster synchro. (+ extract of circuit diagram)
• Dead. Soft ticking sound. (703769 OTTOVERSAND repair tip)
• Intermittent picture size.
• Excessive brightness. (part of circuit diagram displayed)
• Black screen. No brightness. Audio OK . (with circuit diagram extract)
• Shuts down. LED is green. (with circuit diagram extract)
• White screen.
• Only grey picture after being struck by lightning. TXT also runs. (+ extract of circuit diagram)
• Defective T7545. (extract of circuit diagram attached)
• BUT18 fails repeatedly. (with circuit diagram extract)
• No audio. when cold. No OSD. when cold. (extract of circuit diagram attached) (703769 tips)
• No E/W correction. Pincushion distortion. (extract of circuit diagram attached)
• Lower picture third is dark. Upper picture is dispersed. (extract of circuit diagram attached)
• Shuts down. after a while. (part of circuit diagram displayed)
• Protection mode activated.
• Slow start-up. (extract of circuit diagram attached)
• Sometimes the BUT18AF goes defective. (with circuit diagram extract)
• No raster. (+ extract of circuit diagram)
• Switches to safety mode at approx. 110 V mains voltage. (extract of circuit diagram attached)
• Excessive vertical size. (picture attached) (service info for OTTOVERSAND -703769)
• After a few secs in standby, 7625 and fuse destroyed. (extract of circuit diagram attached)
• Defective BUT and fuse in the PSU. After replacing the appliance runs for several days until the fault occurs again. (part of circuit diagram displayed)
• Intermittent power supply shut down, the picture goes off for a split second, the display flickering in sympathy. (703769 tips)
• Reduced vertical size at bottom. (703769 OTTOVERSAND repair tip)
• Line output transistor fails repeatedly. after a while. (picture attached) (703769 tips)
• Defective standby thyristor (SFOR5D43). (picture attached)
• Takes approx 1 minute to come on, will not switch to standby, sound mutes but pulsating picture remains. (with circuit diagram extract)
• Flyback lines. intermittently.
• BUT18, R3570 and F1534 blow. (part of circuit diagram displayed)
• Loss of red, green or blue or excessive red, green or blue pictures.
• Quick diagnosis (+ extract of circuit diagram)
• TS7625 (BUT 18AF) fails again. (part of circuit diagram displayed)
• No start up. No front panel LED. Quiet noise from loud-speakers.
• Strange noise in loudspeakers. (picture attached) (703769 tip from OTTOVERSAND)
• Crackling from FBT and black vertical bars on screen for a few secs after start up. (with circuit diagram extract)
• Connection of a loop system to the TV.
• Wavy picture. via AV.
• 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. (with circuit diagram extract)
• Intermittently dead. (+ extract of circuit diagram)
• Chroma fault in SECAM. (part of circuit diagram displayed)
• Picture jitters. when cold. (+ extract of circuit diagram) (service info for OTTOVERSAND -703769)
• Power supply blows when put into standby. (with circuit diagram extract)
• Set dead, power supply refuses to start. Also intermittent start and no standby (+ extract of circuit diagram)
• Protective circuit starts up. (picture attached)
• No blue. (+ extract of circuit diagram) (service info for OTTOVERSAND -703769)
• In standby tries to operate spontaneously. (extract of circuit diagram attached)
• Fuse, bridge rectifier and BUT11 in PSU blow when in standby for 10 mins. (+ extract of circuit diagram)
• Poor picture. via tuner. (extract of circuit diagram attached)
• Power supply is low when warm. (+ extract of circuit diagram)
• Vertical lines. on the left. Excessive brightness. (extract of circuit diagram attached)
• No audio. (picture attached)
• How to check the power supply without blowing BUT18AF.
• Low sound on channel A. (extract of circuit diagram attached)
• Pulsating, no start up. (part of circuit diagram displayed)
• No OSD. intermittently. (picture attached)
• Shuts down. after a few minutes. (picture attached)
• Egg-shaped picture, picture is pushed upwards. Underneath 5cm black bar. (+ extract of circuit diagram)
• Videotext has turbulent text content in upper section.
• No output voltage.
• Dark screen. No OSD. (+ extract of circuit diagram)
• The output transistor of the power supply is defective. BUT11AF or 2SC3973B.
• Page 811 appears spontaneously. (with circuit diagram extract) (703769 tip from OTTOVERSAND)
• Picture is affected by frizzy lines occasionally with crackling noise in the speakers and perhaps with a burnt smell. (extract of circuit diagram attached) (703769 tip from OTTOVERSAND)
• Chopper transistor failure. (with circuit diagram extract) (703769 tips)
• White area visible on right side of screen in EXT1 mode of BL sets. (part of circuit diagram displayed)
• No colours. After approx an hour colours appear with fluctuations. (picture attached)
• BUT18AF fails repeatedly. (extract of circuit diagram attached) (703769 tip from OTTOVERSAND)
• Low contrast. (extract of circuit diagram attached)
• No tuning. intermittently. (extract of circuit diagram attached) (703769 tips)
• Switch on during standby only functions when RC is very close to the appliance.
• Line output transformer does not start up. (extract of circuit diagram attached) (OTTOVERSAND - 703769 information)
• Does not decode Canal Plus no the sound. Green LED flashes. (extract of circuit diagram attached)
• No tuner reception. Search display functions well but appliance does not pick up any channel. (extract of circuit diagram attached) (703769 tip from OTTOVERSAND)
• No start-up from standby with RC.
• Poor NICAM sound from left hand speaker.
• Transformation in K' (only for stereo versions). (picture attached)
• No tuning.
• Unstable AFC. Noisy picture. (with circuit diagram extract)
• No audio. intermittently. (part of circuit diagram displayed)
• Vertical shaking. (with circuit diagram extract)
• Character error.
• LED lights up for a moment. TV is dead. Light on the power supply sometimes functions. (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 picture and no sound. (+ extract of circuit diagram)
• No vertical synchronisation. (+ extract of circuit diagram)
• No tuning. when cold. (with circuit diagram extract)
• Excessive horizontal size. Picture size varies with picture content. (with circuit diagram extract) (703769 tips)
• No picture. on lower half screen. (part of circuit diagram displayed)
• Vertical collapse. (extract of circuit diagram attached)
• No sound at some stations or audio failure. Via scart OK. (703769 tips)
• Lines on picture and sections blanked out. No TXT. (+ extract of circuit diagram)
• Control micro processors.
• Undefined Stereo Mono switchover.
• Type of transistor 7594 and value of resistor R3596.
• Picture stretched at top, compressed at bottom with black bar. Picture improves when warm. (extract of circuit diagram attached)
• Volume uncontrollable. No brightness control.
• Ragged picture.
• No reset.
• Intermittent black picture with TXT. Intermittent TXT in picture.
• T7637 blown. (part of circuit diagram displayed)
• PSU defective. (+ extract of circuit diagram)
• Doesn't switch into standby. Green LED goes orange and flashes after pressing standby key .
• Dark background and a band of colour on the right. (+ 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. (with circuit diagram extract)
• Set can be turned off with RC, but not turned on. S.B. LED blinks. (part of circuit diagram displayed)
• Horizontal line. Audio OK . (picture attached)
• White picture and no amplitude when cold. Picture pumping. (picture attached) (703769 tips)
• Blows chopper transistor. (picture attached)
• Interference in picture. when cold. (picture attached)
• Dark screen and bright bar at the top. Clock is strange. Sound present. (picture attached)
• The standby thyristor blows. (+ extract of circuit diagram)
• Excessive blue.
• Reduced horizontal size. intermittently.
• Vertical roll. (extract of circuit diagram attached)
• Defective BUT.
• Poor vertical linearity. Reduced vertical deflection. (+ extract of circuit diagram)
• Defective SOPS. (picture attached)
• Vertical defective, too large line space in upper picture third. Linearity fault. (+ extract of circuit diagram)
• Usys voltage of line output stage collapses to approx 48V. (part of circuit diagram displayed)
• Switches off intermittently. Standby LED (red-green) flashes. Picture drops out. (with circuit diagram extract)
• Vertical foldover. (+ extract of circuit diagram)
• Horizontal end stage BU508AF short circuits after different playing times. (with circuit diagram extract)
• Pincushion distortion at each side. Adjustment potentiometer does not correct fault. (part of circuit diagram displayed)
• 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.
• 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)
• Works correctly but power supply BUT11 blows after 3 weeks. (+ extract of circuit diagram)
• Line BU blows after a moment. (part of circuit diagram displayed)
• Snow on screen and no reception. F4 displayed on screen. Green LED lit. (picture attached)
• 17V instead of 140V. (+ extract of circuit diagram)
• No switch on. Noise from loud-speakers and smell of burning. (part of circuit diagram displayed) (703769 tips)
• Dead. Red LED blinks. (extract of circuit diagram attached)
• HV capacitor burns. (part of circuit diagram displayed)
• 148V does not go pass 20V. (+ extract of circuit diagram)
• Appliance starts up with the variac until it reaches 100V and then the appliance fails. (with circuit diagram extract) (703769 tip from OTTOVERSAND)
• No horizontal synchronisation. when cold. (extract of circuit diagram attached)
• Distorted audio.
• Appliance hums in Standby.
• Line pairing at top half of the picture (part of circuit diagram displayed)
• Connection of the loop system to the TV.
• Appliance fails and later comes back unprompted. (extract of circuit diagram attached)
• U system only 5V instead 148V. (with circuit diagram extract)
• No control signal to IC7470 (TDA) and no line scanning. (extract of circuit diagram attached)
• Colour flickering during video editing.
• Line output transistor fails repeatedly. (extract of circuit diagram attached)
• Loss of colour or no colour.
• Reduced vertical size. (with circuit diagram extract)
• PSU voltage low at 20V. (part of circuit diagram displayed)
• Blows fuse. after a few hours. (extract of circuit diagram attached)
• Beam current dependent picture width fault. (picture attached)
• Over oscillations below collector BUT18. (part of circuit diagram displayed)
• SOPS power supply repeatedly becomes defective. (+ extract of circuit diagram)
• No picture. when cold. Audio OK . (picture attached)
• Line output transistor fails repeatedly. intermittently. (with circuit diagram extract) (703769 OTTOVERSAND repair tip)
• Red picture. after a while. (+ extract of circuit diagram)
• Poor frame linearity when cold. Picture is distorted vertically. (+ extract of circuit diagram)
• Horizontal output stage fails again after some time. (part of circuit diagram displayed)
• Green LED does not light up. Power supply oscillates. (with circuit diagram extract)
• Squealing from PSU. after start-up. (picture attached)
• Operating voltage stabilises at 50V. (extract of circuit diagram attached)
• Poor linearity. (+ extract of circuit diagram)
• Sound and picture pulsating (2 times a sec) only via tuner.
• The power supply BUT18AF shorts after operating for 5 hours. (+ extract of circuit diagram)
• Wavy picture. at top.
• Top of TXT waves from side to side. (picture attached)
• White picture on the right side in EXT1 mode.
• Search stops with good tuning.
• 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. (picture attached)
• Horizontal-BU 508AF has a s/c. After replacing this fails again after a few seconds. (picture attached)
• S/C in EHT stage. (+ extract of circuit diagram)
• U148V measures 20V.
• Distorted picture. at top. (extract of circuit diagram attached) (service info for OTTOVERSAND -703769)
• No sound or vision with F1 showing in the display.
• R3368 and R3369 burn up at switch on. (extract of circuit diagram attached)
• Picture jitters and vertical bars distorted on cross-hatched pattern. Blue horizontal bars. (+ extract of circuit diagram)
• No sound in scart. Sound and picture via the tuner. The appliance does not pick up anything. (with circuit diagram extract)
• Poor chroma identification in Pal/Secam. On channels 5, 6 or with VCR, blue or red bands. (with circuit diagram extract)
• Intermittently green "F5" on screen, thereby very dark picture or TXT appears. (+ extract of circuit diagram) (OTTOVERSAND - 703769 information)
• At start up goes immediately into standby. 12C BUS blocks at 5V. (part of circuit diagram displayed)
• BU508 defective after switching channel (when appliance is warm). (extract of circuit diagram attached)
• No vertical deflection. Horizontal line. (+ extract of circuit diagram)
• No sound when input connection made via 2 S-VHS phono sockets.
• Adjustment black line matrix.
• Picture shifted to the right. Poor synchronisation. (extract of circuit diagram attached)
• No functions. No button operation. (part of circuit diagram displayed)
• The bottom half of the raster is missing, with the top cramped.
• Transistor T7545 (BU508AF) becomes intermittently defective at program switch-over via "+" and "-" on user control. (service info for OTTOVERSAND -703769)
• Replacing the EEPROM. (with circuit diagram extract)
• No picture. Audio and OSD OK .
• Very low secondary voltages. (+ extract of circuit diagram)
• Purity fault. (part of circuit diagram displayed)
• Mono/stereo display error. (+ extract of circuit diagram)
• With Blackline picture tubes occasional or random OSD insertion.
• Difficult horizontal and vertical adjustment and sawtooth at the side. (+ extract of circuit diagram)
• Picture is too wide or too small when adjusting horizontal size.
• Hum in audio. (picture attached)
• Line output transformer overheats. (+ extract of circuit diagram)
• Snow in picture. (with circuit diagram extract)
• Destruction of the power supply BU. (extract of circuit diagram attached)
• Tuning drifts. after a while.
• Line tearing and picture twitching at the sides of the picture.
• Ragged verticals.
• Picture flickers for approx 5 mins after switch on when cold, then everything normal as soon as appliance reaches room temperature.
• BUT18 blows at 100V on the variac.
• Red light flashes for approximately 3 seconds then zero.
• BUT18AF blows in standby on the collector. (+ extract of circuit diagram)
• Poor audio. only on certain channels. Crackling audio.
• Intermittently screen blanks out. Random characters on screen.
• Mains fuse O/C and BUT S/C. (+ extract of circuit diagram)
• Very loud sound at switch but normal at previous switch off. Adjustment OK.
• No PAL chroma.
• Red LED blinking for 3 secs.
• Coloured flash on channel change and VCR features. (+ extract of circuit diagram)
• No picture, only audio via SCART. "Off air" picture displayed.. (picture attached)
• No 9V. (part of circuit diagram displayed)
• When warm, there is a raster fault on the left. (picture attached)
• Dark screen. No picture. No RC functions. (+ extract of circuit diagram)
• Line output transistor defective. (picture attached)
• No picture. Audio OK . (picture attached)
• 148V measures 60V. (part of circuit diagram displayed) (OTTOVERSAND - 703769 information)
• Loud noise. (picture attached)
• Vertical synchronisation fault when hot and presence of white line, then picture disappears (extract of circuit diagram attached)
• Tuning search does not stop.
• The appliance functions correctly in standard B,G but the sound hums in F standard. (picture attached)
• No LED lit. (extract of circuit diagram attached)
• Line BU blows after operating for 3-5 mins. (+ extract of circuit diagram)
• No synchronisation. intermittently. (picture attached)
• +148V drops to 100V occasionally according to the tube output. (with circuit diagram extract)
• Switches on for a few secs with extreme brightness. No picture. Sound OK. Goes into safety mode immediately after.
• No function. Buzzing noise. (extract of circuit diagram attached)
• Switches to protection mode. intermittently. (+ extract of circuit diagram)
• After about 3 to 4 weeks of regular play, the BUT18 and the main fuse automatically blow. (part of circuit diagram displayed)
• Secondary voltages fall when loaded. (part of circuit diagram displayed)
• 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. (part of circuit diagram displayed)
• After approx 10 minutes startup picture randomly disappears then reappears. No TEXT, only a mass of lines.
• No vertical deflection. intermittently. (part of circuit diagram displayed)
• No picture and sound. Buzz from power supply transformer.
• Poor width regulation with brightness. (part of circuit diagram displayed)
• 5.1V incorrect. (with circuit diagram extract)
• No audio. after a while. (part of circuit diagram displayed)
• No functions. Red LED blinks. (picture attached)
• Undefined Stereo-Mono switch over.
• East/west raster distortion: width and shaping control do not function.
• Ballooning and incorrect picture linearity. (703769 OTTOVERSAND repair tip)
• Sound only at program switch-over. (with circuit diagram extract)
• No picture. No display. Erratic functions. (part of circuit diagram displayed)
• PSU blown.
• Distorted TXT. at top.
• Capacitor 2545 in PSU burns. (extract of circuit diagram attached)
• S/C in 148V line. (picture attached)
• Light green picture despite adjusting. Impossible to get red. (with circuit diagram extract)
• No colours at start up 50% of the time on satellite channels. OK in HF and VCR. (+ extract of circuit diagram)
• No linearity. (with circuit diagram extract)
• Picture looks as if it were encoded (like on C+ channel). Sound is OK.
• Does not switch to standby. No functions. at switch-off. (+ extract of circuit diagram) (service info for OTTOVERSAND -703769)
• Power supply falls to approx 40V AC on the variac. (picture attached) (service info for OTTOVERSAND -703769)
• Switches to protection mode. (picture attached)
• Picture is too big or too small during horizontal amplitude adjustment.
• No picture. after a while. White screen. (part of circuit diagram displayed)
• Vertical deflection is defective. Picture present, after a short time a line appears then picture disappears. (with circuit diagram extract) (service info for OTTOVERSAND -703769)
• Only pulsates once. Resistor R3661 in the 5V rail is burnt.
• The resistors 3661 and 3662 burn in standby, TS7625 is also defective sometimes. (part of circuit diagram displayed)
• CTV functions one day. (with circuit diagram extract) (service info for OTTOVERSAND -703769)
• Dark picture.
• R3653 burns. (part of circuit diagram displayed) (703769 tip from OTTOVERSAND)
• Power supply failure. (extract of circuit diagram attached) (703769 tips)
• References for transistors 7615 and 7612.
• Poor regulation of the power supply. (picture attached)
• Chopper transistor (BUT18AF), rectifier diodes and mains fuse become defective instantly. (extract of circuit diagram attached)
• Picture fault in tuner and scart. (703769 OTTOVERSAND repair tip)
• Picture green and purple in the E/W direction. (OTTOVERSAND - 703769 information)
• 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 attached) (OTTOVERSAND - 703769 information)
• Faulty TXT. (+ extract of circuit diagram)
• Finds emitters during channel search but does not stop. (picture attached)
• Arcing. Picture tearing. Does not synchronise. (part of circuit diagram displayed)
• Grey screen. (+ extract of circuit diagram)
• Vertical stripes at left picture edge via channel 2 and 4. (with circuit diagram extract)
• Memory loss. (picture attached)
• TV blocked in F3.
• Thyristor pos. 6670 fails. (part of circuit diagram displayed)
• Sound drops out.
• Low contrast. in TXT. (with circuit diagram extract)
• Causes for appliance going into safety mode.
• 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)
• No start-up. (part of circuit diagram displayed)
• No power supply, protection circuit triggered. (part of circuit diagram displayed)
• Poor OSD. Unusual colour of some characters. (+ extract of circuit diagram)
• Colour bar at right of screen. (with circuit diagram extract)