703765 / OTTOVERSAND [TV]

• Thyristor goes S/C when switched to standby. (picture attached)
• Stuck on channel 1.
• R3653 burns. (picture attached)
• No picture. after a while. White screen. (picture attached)
• PSU chirps. (+ extract of circuit diagram)
• Horizontal size varies. (part of circuit diagram displayed)
• Shuts down. LED is green. (extract of circuit diagram attached)
• Functions with an automatic transformer up to 110, 120V. (with circuit diagram extract)
• Does not switch to standby. LED turns pink. Picture remains. Sound mutes. (+ extract of circuit diagram)
• Frame shrinks horizontally when changing brightness. (with circuit diagram extract)
• Picture is stretched - begins 5cms from bottom of the screen and is missing approx 1cm East/West. Appliance functions. (part of circuit diagram displayed)
• The horizontal centering cannot be adjusted correctly. It may have shifted after the appliance has warmed up.
• Picture flickers for approx 5 mins after switch on when cold, then everything normal as soon as appliance reaches room temperature.
• No light lit. (with circuit diagram extract)
• Horizontal output stage fails again after some time. (with circuit diagram extract)
• Erratic functions. (with circuit diagram extract)
• Horizontal stripe. intermittently. (extract of circuit diagram attached)
• EHT problems. (+ extract of circuit diagram) (703765 OTTOVERSAND repair tip)
• PSU becomes defective after switch on via mains switch.
• In standby tries to operate spontaneously. (+ extract of circuit diagram) (OTTOVERSAND - 703765 information)
• Causes for appliance going into safety mode.
• Flashing picture. (+ extract of circuit diagram)
• BUT18AF (T7625) becomes defective in standby. (+ extract of circuit diagram)
• Picture is too wide or too small when adjusting horizontal size.
• No HT output voltage of 148V. Voltage is present (approx. 158V) when disconnecting HT coils connector. (part of circuit diagram displayed)
• The standby thyristor blows. (part of circuit diagram displayed)
• Poor chroma identification in Pal/Secam. On channels 5, 6 or with VCR, blue or red bands. (picture attached)
• BUT18AF blows in standby on the collector. (with circuit diagram extract)
• Does not store settings. (part of circuit diagram displayed)
• No horizontal synchronisation. intermittently. (picture attached)
• No MONO audio. STEREO OK . (extract of circuit diagram attached) (703765 tip from OTTOVERSAND)
• BU508, Q7593 and Q7594 are defective. (picture attached)
• BUT18 and rectifier bridge blow every two days even after modifications.
• No switching into CCIR standard. Display ok in SECAM and PAL/SECAM. (picture attached)
• Vertical size varies. Vertical jitter.
• No functions. Power LED lit . (+ extract of circuit diagram)
• Vertical stripes at left picture edge via channel 2 and 4. (extract of circuit diagram attached)
• Horizontal line. Audio OK . (with circuit diagram extract)
• No sound, even with in or out scart.
• No PAL chroma. (service info for OTTOVERSAND -703765)
• Reduced raster size. (+ extract of circuit diagram)
• Switches to safety mode at approx. 110 V mains voltage. (with circuit diagram extract)
• Power supply fuse (18A) defective after 1 hr or less. (part of circuit diagram displayed)
• Switches immediately to protection mode. Functions OK when protection mode is switched off. (picture attached) (OTTOVERSAND - 703765 information)
• PSU has no function.
• Chopper transistor (BUT18AF) fails if appliance is switched on from standby. (part of circuit diagram displayed)
• No chopper power supply. (picture attached)
• Appliance fails and later comes back unprompted. (with circuit diagram extract) (service info for OTTOVERSAND -703765)
• No functions. Red LED blinks. (picture attached)
• Only grey picture after being struck by lightning. TXT also runs. (picture attached)
• Vertical shift incorrect, after replacing a 28" BL-CRT. (extract of circuit diagram attached)
• Switches off during operation. When it is switched on again crackling is heard from HT. (+ extract of circuit diagram)
• Intermittently BUT18 defective after switching on. (part of circuit diagram displayed)
• Vertical synchronisation fault when hot and presence of white line, then picture disappears (picture attached)
• No functions. intermittently.
• Distorted picture. (picture attached)
• 148=68V. (with circuit diagram extract)
• Single dark lines in picture centre. (703765 OTTOVERSAND repair tip)
• Chopper and line output transistors S/C. (+ extract of circuit diagram)
• No raster. (picture attached) (703765 tips)
• How to check the power supply without blowing BUT18AF.
• Picture jitters. when cold. (with circuit diagram extract) (703765 OTTOVERSAND repair tip)
• Line end-stage has no function.
• Channels run through. (picture attached)
• PSU fails after a short time (S/C of BUT18AF). (with circuit diagram extract)
• POR signal too low. (extract of circuit diagram attached)
• Secondary voltages fall when loaded. (+ extract of circuit diagram)
• End stage transistor BU508 fails repeatedly at switch on. (with circuit diagram extract)
• PSU repeatedly blows up. (extract of circuit diagram attached)
• Primary PSU switches off. No standby LED.
• High voltage unit is smouldered. (picture attached)
• No colours at start up 50% of the time on satellite channels. OK in HF and VCR. (+ 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.
• No synchronisation.
• Trips. (part of circuit diagram displayed)
• Fails occasionally.
• Dark picture. Picture rolls. Picture shifted to the left. Flickering picture. (part of circuit diagram displayed)
• HT varies intermittently.
• Intermittently green "F5" on screen, thereby very dark picture or TXT appears. (picture attached)
• Poor RC sensitivity.
• Grey screen. (extract of circuit diagram attached)
• Dark picture.
• Defective BUT.
• On channels 2 and 4 vertical lines on the left hand side of the picture.
• Over oscillations below collector BUT18. (part of circuit diagram displayed)
• The front control panel changes channels upwards but not downwards. All other functions OK. (OTTOVERSAND - 703765 information)
• Vertical collapse. (with circuit diagram extract)
• TXT has no function. TXT is activated but only dark screen.
• Vertical shaking. (+ extract of circuit diagram)
• Horizontal shift no function.
• Blocked. (picture attached)
• Vertical collapse. intermittently. (part of circuit diagram displayed)
• No reset.
• Fuse, bridge rectifier and BUT11 in PSU blow when in standby for 10 mins. (picture attached)
• Poor picture synchronisation during station switch-over. Vertical picture jitter, runs through, poor picture via RF or EXT. (with circuit diagram extract)
• TV blocked in F3.
• Very loud sound at switch but normal at previous switch off. Adjustment OK.
• TV starts, has raster but no image and no sound. Display shows "FO". (+ extract of circuit diagram)
• Purity fault. (picture attached)
• 17V instead of 140V. (part of circuit diagram displayed)
• No audio. Picture OK . (part of circuit diagram displayed)
• Power supply falls to approx 40V AC on the variac. (+ extract of circuit diagram)
• Shuts down. after a while. LED blinks .
• No picture. in E-E. Audio OK .
• No start-up with mains switch after switched off from standby.
• Snow on screen and no tuner reception. F3 displayed on screen. Green LED on.
• Reduced format, flyback line slightly visible. (part of circuit diagram displayed)
• No picture. TXT OK . (+ extract of circuit diagram)
• Defective line transistor. (picture attached)
• Appliance starts up with the variac until it reaches 100V and then the appliance fails. (part of circuit diagram displayed)
• Doesn't function with dummy load. (picture attached)
• Set not regulating after SOPS re-build of secondary side of PSU. (+ extract of circuit diagram)
• No colour. (extract of circuit diagram attached)
• Hum in audio. in standby. (part of circuit diagram displayed) (703765 tips)
• Protective circuit starts up. (extract of circuit diagram attached) (service info for OTTOVERSAND -703765)
• Light green picture despite adjusting. Impossible to get red. (+ extract of circuit diagram)
• Capacitor 2545 in PSU burns. (extract of circuit diagram attached)
• Ballooning and incorrect picture linearity.
• BUT11A fails after operating for long time. (with circuit diagram extract)
• Retrace lines. intermittently. (service info for OTTOVERSAND -703765)
• Picture shifted vertically.
• No functions. intermittently. LED blinks . Shuts down. (with circuit diagram extract) (OTTOVERSAND - 703765 information)
• Blurry picture.
• Works correctly but power supply BUT11 blows after 3 weeks. (+ extract of circuit diagram)
• Poor vertical linearity. Reduced vertical deflection. (+ extract of circuit diagram)
• Raster signal problem.
• Line output transistor fails repeatedly. after a while. (with circuit diagram extract)
• Poor picture. via tuner. (+ extract of circuit diagram)
• Crackling from FBT and black vertical bars on screen for a few secs after start up. (with circuit diagram extract)
• No vertical deflection. Horizontal line. (extract of circuit diagram attached)
• No HV. (picture attached)
• Severe crossover distortion in left channel.
• Problems with flof TXT. Cannot find p.811 in spite of it being sent out. TXT header remains with subtitling. (picture attached)
• Line BU blows after operating for 3-5 mins. (picture attached)
• Brightness differences in picture. (with circuit diagram extract)
• Horizontal, bright line.
• No TXT. Intermittent green dots or lines through picture. Black screen.
• No regulation. (picture attached)
• LED lights up for a moment. TV is dead. Light on the power supply sometimes functions. (extract of circuit diagram attached)
• Dead. Soft ticking sound.
• No red. (extract of circuit diagram attached) (703765 tips)
• Slight E/W distortion. (part of circuit diagram displayed)
• SOPS power supply repeatedly becomes defective. (extract of circuit diagram attached)
• Wavy picture. via AV.
• Incorrect reception. 33V ok. Picture ok in scart.
• Hum in audio. (with circuit diagram extract)
• Dark screen. LED is green. (+ extract of circuit diagram)
• Picture takes a long time to appear (several mins). (part of circuit diagram displayed)
• Spare part info: Value of C2546 and C2545 near line output transformer.
• Appliance works for 4 hours and then cuts out completely.
• The resistors 3661 and 3662 burn in standby, TS7625 is also defective sometimes. (extract of circuit diagram attached)
• Too high power supply. (with circuit diagram extract)
• 6cm black bar at bottom of picture.
• Line pairing at top half of the picture (part of circuit diagram displayed)
• Horizontal line in the middle of screen.
• Horizontal stripe. (with circuit diagram extract)
• No vertical synchronisation. (with circuit diagram extract)
• No picture, no sound, no display, 148V is reduced to approx 50V.
• White screen. Flyback lines. Shuts down. after a few seconds. (part of circuit diagram displayed)
• Noise in picture. (with circuit diagram extract)
• Line BU blows after a moment. (part of circuit diagram displayed)
• Red light flashes for approximately 3 seconds then zero.
• Snow in picture. (part of circuit diagram displayed)
• Shuts down. after a while. (part of circuit diagram displayed)
• The line transistor blows after 5 minutes. (part of circuit diagram displayed)
• Green LED does not light up. Power supply oscillates. (extract of circuit diagram attached)
• No button operation. intermittently. (with circuit diagram extract)
• Vertical roll. when cold. (+ extract of circuit diagram)
• Buzz in audio. (extract of circuit diagram attached)
• Fuse and PSU BU (BUT18AF) defective.
• No OSD. intermittently. (extract of circuit diagram attached)
• Memory loss. (extract of circuit diagram attached)
• Protection of T7625 (BUT18AF). (part of circuit diagram displayed)
• Over-voltage circuit active. (+ extract of circuit diagram)
• Picture size varies with picture content. (with circuit diagram extract)
• 148V at approx 30V. (part of circuit diagram displayed)
• No start-up. (with circuit diagram extract)
• Colour bar at right of screen. (extract of circuit diagram attached)
• No functions. LED lit. . (part of circuit diagram displayed)
• Line output transformer failure.
• Modification: Colour decoder chip IC7260.
• Starts, but only raster. Display shows "F3". (picture attached)
• Excessive brightness. (with circuit diagram extract)
• PSU repair. (with circuit diagram extract)
• No picture. Audio and OSD OK .
• Pulsating, no start up. (+ extract of circuit diagram)
• Difficult to set up east/west and width controls. (picture attached)
• Starts up again then clicks after a few mins. PSU faled again. (picture attached)
• Horizontal deflection BU fails after a few hours.
• Switching transistor of the SOPS power supply is defective. (picture attached)
• U system only 5V instead 148V. (picture attached)
• No picture, only audio via SCART. "Off air" picture displayed.. (with circuit diagram extract)
• No TXT, just lines on screen.
• No horizontal deflection. (part of circuit diagram displayed)
• Dead. intermittently.
• No horizontal synchronisation. when cold. (with circuit diagram extract)
• No quick start pulse. (+ extract of circuit diagram)
• Loss of colour or no colour.
• Squealing from PSU. after start-up. (extract of circuit diagram attached)
• Undefined Stereo Mono switchover.
• With high volume the appliance switches spontaneously to standby. (with circuit diagram extract)
• Usys voltage of line output stage collapses to approx 48V. (+ extract of circuit diagram)
• Does not switch to standby. Horizontal line. LED blinks . (extract of circuit diagram attached)
• Black horizontal lines. (part of circuit diagram displayed)
• Line tearing and picture quiver at the edges.
• No picture or narrow streak after warm-up. (picture attached)
• Line output transistor defective. (with circuit diagram extract)
• Colour flickering during video editing.
• No audio. (picture attached)
• Replacing TDA2579. (extract of circuit diagram attached)
• Colour flickering during video editing.
• Does not stop at stations. Station search OK. (picture attached)
• Intermittent memory problem.
• Picture green and purple in the E/W direction. (703765 tips)
• Faulty TXT. No TXT. intermittently.
• Picture pulsates on white background.
• Error message F7 appears in the first 2 mins. No operation possible. (+ extract of circuit diagram)
• To give improved protection to the BUT11AF chopper transistor TR7665.
• White picture with flyback lines. (part of circuit diagram displayed)
• Flyback lines. intermittently.
• Quick diagnosis (part of circuit diagram displayed)
• No horizontal synchronisation. (with circuit diagram extract)
• Negative picture when cold and sometimes intermittently. (+ extract of circuit diagram)
• Only pulsates once. Resistor R3661 in the 5V rail is burnt.
• Occasionally BUT18 blows in standby. (+ extract of circuit diagram)
• Poor E/W adjustment. Picture is narrow in the middle. (+ extract of circuit diagram)
• Lacks contrast. No reaction on the plus or minus key of the contrast button. Other commands are ok.
• HV capacitor burns. (picture attached)
• BU508 defective after switching channel (when appliance is warm). (picture attached)
• No linearity. (extract of circuit diagram attached) (703765 OTTOVERSAND repair tip)
• Appliance runs ok, but if remote used to switch to standby, appliance goes dead. (with circuit diagram extract)
• S/C in line output stage (7645). (picture attached)
• Line transistor 7545 fails after approx. 3 secs. (picture attached)
• When cold, picture takes approx 2.5 mins to appear instead of 15 secs. When warm it takes 20 secs. (picture attached)
• No adjustment from PSU possible. (part of circuit diagram displayed)
• Black stripe on left edge of screen. Horizontal linearity is not correct. (+ extract of circuit diagram)
• Low brightness (even after turning up the preset in the U200 module).
• Searches for channels continuously. (picture attached)
• No control signal to IC7470 (TDA) and no line scanning. (extract of circuit diagram attached)
• No E/W.
• Poor OSD. Unusual colour of some characters. (extract of circuit diagram attached) (703765 tip from OTTOVERSAND)
• No start-up. Standby LED does not light. (with circuit diagram extract)
• Vertical foldover at top.
• S/C from point 18 at line transformer to the ground. (+ extract of circuit diagram)
• Switches on for a few secs with extreme brightness. No picture. Sound OK. Goes into safety mode immediately after.
• No sound. No response to commands from both RC and front panel. Error message F2 on screen. Picture ok. (with circuit diagram extract)
• Blank screen. Audio OK .
• Replacing the EEPROM. (picture attached)
• No sound at some stations or audio failure. Via scart OK.
• Blank raster. No tuning.
• Blue picture. after a while. (extract of circuit diagram attached)
• Dark picture. No picture. via SCART. No audio. via SCART. No RC functions. (part of circuit diagram displayed)
• No colour. Coloured bars in picture. OK after a few minutes. (picture attached)
• OSD partly disappeared from the screen in BL sets. (part of circuit diagram displayed)
• Blows components. at start-up. (extract of circuit diagram attached)
• No 9V. (with circuit diagram extract)
• Intermittent failure thyristor 6670 in STANDBY mode. (picture attached)
• BUT18 blows at 100V on the variac.
• Stretched picture. at top. Reduced raster size. at bottom. (with circuit diagram extract)
• Unadjustable horizontal centering. (extract of circuit diagram attached)
• No teletext and OSD is hardly visible. The regular picture vibrates if appliance is switched to teletext. (extract of circuit diagram attached)
• Excessive blue.
• Replacement of TDA8451 (IC7305). (picture attached)
• Dark screen and bright bar at the top. Clock is strange. Sound present. (with circuit diagram extract)
• Low contrast. in TXT. (picture attached)
• Picture flickers the first 5 minutes. Gradually becomes less but very visible in the dark portions of the screen.
• Goes to blank screen with unlocked TXT lines when TXT selected. (703765 OTTOVERSAND repair tip)
• Reduced horizontal size. after a while. (picture attached)
• BUT18 is defective. (+ extract of circuit diagram)
• Videotext has turbulent text content in upper section.
• Excessive horizontal size. Picture size varies with picture content. (extract of circuit diagram attached)
• PSU blown.
• Appliance starts intermittently with no standby. (+ extract of circuit diagram)
• Picture rolls. (extract of circuit diagram attached)
• Thyristor fails in PSU in standby. Otherwise appliance OK. (with circuit diagram extract)
• Shuts down. after a few minutes. (with circuit diagram extract) (service info for OTTOVERSAND -703765)
• Slow start-up. Switches to standby. (picture attached)
• Vertical sync does not stop. (with circuit diagram extract)
• Low contrast. (with circuit diagram extract)
• Dead. Humming noise from transformer. (part of circuit diagram displayed)
• With Blackline picture tubes occasional or random OSD insertion.
• Picture flickers intermittently, sound disappears. Picture reappears of itself, sound doesn't but can be activated with the RC.
• Pincushion distortion at each side. Adjustment potentiometer does not correct fault. (part of circuit diagram displayed)
• Blows components. after a few minutes. (+ extract of circuit diagram) (service info for OTTOVERSAND -703765)
• After approx 10 minutes startup picture randomly disappears then reappears. No TEXT, only a mass of lines.
• Thyristor TR7670 breaks down after two days (loose contacts). (+ extract of circuit diagram) (703765 tip from OTTOVERSAND)
• Tuning search does not stop. (703765 tip from OTTOVERSAND)
• No picture. when cold. (part of circuit diagram displayed)
• Defective SOPS. (extract of circuit diagram attached)
• U148V measures 20V.
• Picture fault in tuner and scart.
• Intermittently screen blanks out. Random characters on screen.
• No picture, teletext and sound are fine. (part of circuit diagram displayed)
• Interference in picture. when cold. (extract of circuit diagram attached)
• Line BU keeps failing. (part of circuit diagram displayed)
• R3368 and R3369 burn up at switch on. (picture attached) (703765 OTTOVERSAND repair tip)
• No picture. F4 lights up in the display. (part of circuit diagram displayed)
• Vertical defective, too large line space in upper picture third. Linearity fault. (+ extract of circuit diagram)
• Regulation does not function without a load. (picture attached)
• On the test picture, distorted, vertical lines at top and bottom of the screen. (part of circuit diagram displayed)
• Snow on screen and no reception. F4 displayed on screen. Green LED lit. (part of circuit diagram displayed)
• Transistor T7545 (BU508AF) becomes intermittently defective at program switch-over via "+" and "-" on user control.
• Impossible to adjust horizontal shift of picture using R3595. (picture attached) (703765 OTTOVERSAND repair tip)
• 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. (with circuit diagram extract)
• 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.
• No sound when input connection made via 2 S-VHS phono sockets.
• Set can be turned off with RC, but not turned on. S.B. LED blinks. (+ extract of circuit diagram)
• The sound fails: after changing over to a different channel, the sound is back. (part of circuit diagram displayed)
• Line BU508blows after 3 days. (extract of circuit diagram attached) (OTTOVERSAND - 703765 information)
• The appliance functions correctly in standard B,G but the sound hums in F standard. (with circuit diagram extract)
• Noise in audio.
• Spare part info: values of C2546, C2547 and C2545, located on collector of T7545. (part of circuit diagram displayed)
• Line output transistor fails repeatedly. (with circuit diagram extract) (service info for OTTOVERSAND -703765)
• Local dooming. (extract of circuit diagram attached)
• No E/W correction. (with circuit diagram extract)
• E/W fault. No E/W correction. (extract of circuit diagram attached)
• Vertical collapse. after a few minutes. Audio OK .
• Intermittent line and raster synchro. (with circuit diagram extract)
• No picture, no sound. TV starts up and tube lights up. (+ extract of circuit diagram)
• Sound only at program switch-over. (extract of circuit diagram attached)
• BUT18, R3570 and F1534 blow. (part of circuit diagram displayed)
• Weak contrast. No contrast control.
• Poor vertical linearity. Horizontal size varies. (+ extract of circuit diagram)
• Distorted audio. (703765 tips)
• PSU blocking. (extract of circuit diagram attached) (service info for OTTOVERSAND -703765)
• Cramped at bottom with slight foldover.
• Egg-shaped picture, picture is pushed upwards. Underneath 5cm black bar. (part of circuit diagram displayed)
• Set dead, power supply refuses to start. Also intermittent start and no standby (+ extract of circuit diagram) (703765 OTTOVERSAND repair tip)
• Picture shakes.
• BUT transistor becomes S/C either at switch on or after a certain period of time. (picture attached)
• Interference in picture. No picture. No audio. (part of circuit diagram displayed)
• Local dooming / PP-settings. (+ extract of circuit diagram)
• Nasal sound on channels 5 and 6. (picture attached)
• Black screen. Audio OK . (part of circuit diagram displayed)
• Reduced vertical size at bottom. (703765 tip from OTTOVERSAND)
• No colour in SECAM and PAL. Colour may appear slightly in SECAM when warm. (picture attached)
• No synchronisation. intermittently. (part of circuit diagram displayed)
• Coloured spots in picture (local dooming). (extract of circuit diagram attached)
• Picture collapses. Pincushion distortion. (picture attached)
• No picture. intermittently. (with circuit diagram extract)
• At start up goes immediately into standby. 12C BUS blocks at 5V. (extract of circuit diagram attached)
• TS7625 (BUT 18AF) fails again. (extract of circuit diagram attached)
• One single line in the middle of the screen. (extract of circuit diagram attached)
• No red, green and blue go through correctly. TEA5101A and TDA8390 have been changed. (extract of circuit diagram attached)
• Sometimes the BUT18AF goes defective. (extract of circuit diagram attached)
• Power supply failure. (extract of circuit diagram attached)
• Tuning unstable. (extract of circuit diagram attached)
• S/C in 148V line. (+ extract of circuit diagram)
• Wavy picture. at top.
• No sound or vision, display going to F1.
• Excessive red. (service info for OTTOVERSAND -703765)
• Poor audio. only on certain channels. Crackling audio.
• Goes dead when switched to standby by RC. No standby LED. Switching on and off at mains, restores normal functions (with circuit diagram extract)
• Appliance hums in Standby.
• Extra protection for chopper transistor TR7625 (BUT18AF). (extract of circuit diagram attached)
• BUT11 in power supply defective after few days, or when in standby. (+ extract of circuit diagram) (OTTOVERSAND - 703765 information)
• Intermittent picture size.
• Power supply goes into safety mode and crackles. (with circuit diagram extract)
• No function, only hums. (with circuit diagram extract)
• Power supply blows when put into standby. (extract of circuit diagram attached) (703765 OTTOVERSAND repair tip)
• Power supply is often destroyed when left in standby. (part of circuit diagram displayed)
• Faulty TXT. (extract of circuit diagram attached)
• Switches to protection mode. (+ extract of circuit diagram)
• Contrast variations with subtitling in sets with BL-CRT. (part of circuit diagram displayed)
• Power supply BU and fuse are defective when TV started up from standby. Occurs every week or fortnight and is very variable. (picture attached)
• CTV functions one day. (picture attached)
• +16V flashover. (part of circuit diagram displayed)
• Black screen. No brightness. Audio OK . (extract of circuit diagram attached)
• Beam current dependent picture width fault. (+ extract of circuit diagram)
• Blows fuse. after a few hours. (part of circuit diagram displayed)
• Picture looks as if it were encoded (like on C+ channel). Sound is OK.
• No synchronisation. when cold. (part of circuit diagram displayed)
• BUT18 fails repeatedly. (picture attached)
• Mono/Stereo-indication switches. (picture attached)
• Protection for BUT18AF in PSU.
• Transformation in K' (only for stereo versions). (with circuit diagram extract)
• Type of transistor 7594 and value of resistor R3596.
• Can not be switched off in Standby position. When starting, LED becomes orange and blows. (with circuit diagram extract)
• No contrast control. (with circuit diagram extract)
• No sound or vision with F1 showing in the display.
• Tuning does not function, drifts, raster doubles up. Vertical sychronisation fault. (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)
• Line transformer noise. (with circuit diagram extract)
• Vertical foldover. (picture attached)
• Top of TXT waves from side to side. (with circuit diagram extract)
• BUT11AF S/C. (extract of circuit diagram attached)
• Dark screen. No picture. No RC functions. (with circuit diagram extract)
• Poor linearity. (part of circuit diagram displayed)
• Local dooming, especially with high contrast. (with circuit diagram extract)
• Search stops with good tuning. (OTTOVERSAND - 703765 information)
• Intermittently blown Wickman fuse 1534.
• No switch on. Noise from loud-speakers and smell of burning. (picture attached)
• 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.
• Intermittently dead. (extract of circuit diagram 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)
• Poor frame linearity when cold. Picture is distorted vertically. (part of circuit diagram displayed)
• No vertical deflection. intermittently. (extract of circuit diagram attached)
• 148V measures 60V. (extract of circuit diagram attached)
• TV blocks on 600MHZ. If you do a frequency search, it goes through all frequencies but does not find any channels. (part of circuit diagram displayed)
• The picture is indented (horizontally).
• Green picture. after a while. (extract of circuit diagram attached)
• Green spot after viewing a white object on the screen.
• Appliance only functions until the 120V is reached with the variac. When the mains voltage is increased the appliance fails. (picture attached)
• Does not go into standby. LED becomes orange but picture remains. (picture attached)
• Switches to protection mode. intermittently. (with circuit diagram extract)
• Vertical deflection is defective. A piece is missing at the bottom and at the top the lines are pulled apart. (picture attached)
• Vertical roll. (extract of circuit diagram attached)
• No picture, only horizontal stripe on top. Picture appears only after a long while. Then picture collapses to a horizontal stripe in the centre.
• No or poor synchronisation. (OTTOVERSAND - 703765 information)
• Supply transistor BUT18A becomes defective immediately after switching on the appliance. (with circuit diagram extract) (OTTOVERSAND - 703765 information)
• S/C on deflection circuit. (with circuit diagram extract)
• Intermittently line tearing in picture at the edges.
• Intermittent colour.
• No picture. on lower half screen. (picture attached)
• Occasionally standby thyristor 6670 S/C. (picture attached)
• Jagged picture. (extract of circuit diagram attached) (703765 OTTOVERSAND repair tip)
• No colour. when cold. Poor colour. after warm-up. (part of circuit diagram displayed)
• Phase fault. (extract of circuit diagram attached)
• Line transistor S/C.
• PCD8582 and X2402 memory. (with circuit diagram extract)
• Power supply too low (70V). (+ extract of circuit diagram)
• PSU no function.
• Line output transformer overheats. (extract of circuit diagram attached) (service info for OTTOVERSAND -703765)
• Humming noise from transformer. Line output transistor fails repeatedly. (+ extract of circuit diagram)
• Unstable AFC. Noisy picture. (extract of circuit diagram attached)
• Reduced horizontal size. Vertical foldover. in the centre. (extract of circuit diagram attached)
• Tuning drifts. after a while.
• Tuning search does not stop when appliance has found a station. (+ extract of circuit diagram)
• Power supply crackles when power supply is low. (part of circuit diagram displayed)
• No power supply, protection circuit triggered. (+ extract of circuit diagram)
• Horizontal line. in the centre. (+ extract of circuit diagram)
• No start up. No front panel LED. Quiet noise from loud-speakers.
• No picture. No brightness. No sound. Picture tube filament on.
• No function. Buzzing noise. (with circuit diagram extract)
• Defective BUT and fuse in the PSU. After replacing the appliance runs for several days until the fault occurs again. (with circuit diagram extract)
• PSU defective. (+ extract of circuit diagram)
• 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. (with circuit diagram extract)
• Repeated failure of CRT.
• Vertical foldover at top and bottom. (part of circuit diagram displayed)
• When warm, there is a raster fault on the left. (+ extract of circuit diagram)
• Vertical deflection is defective. Picture present, after a short time a line appears then picture disappears. (+ extract of circuit diagram)
• Reduced vertical deflection. intermittently. (with circuit diagram extract)
• In VCR there are only chroma lines. (extract of circuit diagram attached)
• Distorted vertical lines at top and bottom of monoscope. E/W correction is faulty. (picture attached)
• Vertical foldover at bottom. (extract of circuit diagram attached) (OTTOVERSAND - 703765 information)
• The power supply BUT18AF shorts after operating for 5 hours. (picture attached)
• Line output transistor fails repeatedly. after start-up.
• Frizzy lines on the picture.
• Dark picture with thin vertical stripe in upper picture. (picture attached)
• No tuning. intermittently. (with circuit diagram extract)
• Blows chopper transistor. (picture attached)
• Crackle a few seconds after Power On. (picture attached)
• Microprocessor/eprom screening plate. (+ extract of circuit diagram)
• After a few secs in standby, 7625 and fuse destroyed. (extract of circuit diagram attached)
• Distorted TXT. at top.
• Loud noise. (extract of circuit diagram attached)
• Poor regulation. (extract of circuit diagram attached) (703765 OTTOVERSAND repair tip)
• 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. (picture attached)
• Dead set caused by lightning damage. (+ extract of circuit diagram)
• The output transistor of the power supply is defective. BUT11AF or 2SC3973B.
• Ticking sound. (picture attached) (service info for OTTOVERSAND -703765)
• Loud noises from speaker. Picture OK .
• Vertical bar. on the left. (picture attached)
• E-W output stage fails as soon as the appliance is switched on. Fuse 1534 (315mA) also fails. (with circuit diagram extract)
• Line tearing and picture twitching at the sides of the picture.
• Picture is too big or too small during horizontal amplitude adjustment.
• Sound is noisy.
• 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)
• Red LED blinking for 3 secs.
• 148V does not go pass 20V. (extract of circuit diagram attached)
• Sound was OK but there was no vision for the first 10 mins after switch on. (picture attached)
• 5.1V incorrect. (with circuit diagram extract)
• No deflection. Horizontal line.
• Switch on during standby only functions when RC is very close to the appliance.
• Doesn't switch into standby. Green LED goes orange and flashes after pressing standby key .
• Switching transistor in power supply goes short circuit (BUT18).
• With Blackline picture tubes in the EXT1-Mode a white field is visible on the right side.
• Dead. Red LED blinks. (extract of circuit diagram attached)
• The bottom half of the raster is missing, with the top cramped.
• Service mode
• Low sound on channel A. (+ extract of circuit diagram)
• Thyristor pos. 6670 fails. (part of circuit diagram displayed)
• No tuning.
• After about 3 to 4 weeks of regular play, the BUT18 and the main fuse automatically blow. (+ extract of circuit diagram)
• No functions. No button operation. (part of circuit diagram displayed)
• 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)
• No E/W correction. Pincushion distortion. (+ extract of circuit diagram)
• Change in picture width depending on beam current. (picture attached)
• When switching on the appliance when it's cold, it takes about 35 seconds before the picture appears. (picture attached)
• BU508AF fails repeatedly. (part of circuit diagram displayed) (service info for OTTOVERSAND -703765)
• White picture on the right side in EXT1 mode.
• No picture. Audio OK . (part of circuit diagram displayed)
• Lines on picture and sections blanked out. No TXT. (with circuit diagram extract)
• Arcing. Picture tearing. Does not synchronise. (+ extract of circuit diagram)
• Tripping. intermittently.
• After switch on the picture is sometimes shifted and a black horizontal bar appears in the centre of the picture. (picture attached)
• Chopper transistor failure. (+ extract of circuit diagram) (703765 OTTOVERSAND repair tip)
• Defective standby thyristor (SFOR5D43). (+ extract of circuit diagram)
• Ragged picture. (service info for OTTOVERSAND -703765)
• 100V power supply is approx 35V. (+ extract of circuit diagram)
• Buzzing from PSU. Motorboating noise from speakers. in standby. (with circuit diagram extract)
• Horizontal-BU 508AF has a s/c. After replacing this fails again after a few seconds. (+ extract of circuit diagram)
• No picture. Bright raster. Flyback lines. Audio OK . (with circuit diagram extract) (703765 tips)
• Destruction of the power supply BU. (picture attached)
• Power supply BU blows after a few days.
• No blue. (picture attached)
• 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)
• Does not switch to standby. No functions. at switch-off. (extract of circuit diagram attached)
• When switching on, HV part hums. No control function is possible. (picture attached)
• Poor regulation of the power supply. (extract of circuit diagram attached)
• Very low secondary voltages. (extract of circuit diagram attached)
• No picture. No display. Erratic functions. (part of circuit diagram displayed)
• No audio. intermittently. (extract of circuit diagram attached)
• Trapezoid picture. No E/W correction.
• Picture takes some time to appear. Dark screen then TV stops. Round colour spot which slowly disappears. (+ extract of circuit diagram) (703765 OTTOVERSAND repair tip)
• EXT1 switchover is defective, terrestrial program remains. (703765 tips)
• 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)
• Discharging noise. via speakers.
• Appliance does not start up. Crackling. (+ extract of circuit diagram)
• Audio drop out or mute.
• PSU varies according to picture content when warm. (extract of circuit diagram attached) (OTTOVERSAND - 703765 information)
• Picture linearity error. Picture has shifted towards top. Picture folds over at the bottom.
• When warm, picture foldover and the line BU blows. (with circuit diagram extract)
• White square in a corner of the screen. (with circuit diagram extract)
• Sound and picture pulsating (2 times a sec) only via tuner.
• Mains fuse O/C and BUT S/C. (+ extract of circuit diagram)
• Takes approx 1 minute to come on, will not switch to standby, sound mutes but pulsating picture remains. (with circuit diagram extract)
• 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)
• No sound in scart. Sound and picture via the tuner. The appliance does not pick up anything. (extract of circuit diagram attached)
• Width of picture pumps according to picture content and narrows with a strong white. (with circuit diagram extract)
• No audio. when cold. No OSD. when cold. (part of circuit diagram displayed)
• Ragged verticals.
• Line output transformer does not start up. (with circuit diagram extract)
• Blows chopper transistor at switch on.
• Protection mode activated.
• Dark streak on screen.
• No signal on the BUT11AF collector. (with circuit diagram extract)
• Voltage too low. (+ extract of circuit diagram)
• Vertical lines. on the left. Excessive brightness. (with circuit diagram extract)
• Picture width changes according to its content. Linear distortion on right and left sides over 5cm (no ondulation).
• When switched off with RC, does not switch on again and LED remains off. (+ extract of circuit diagram)
• Picture stretched at top, compressed at bottom with black bar. Picture improves when warm. (extract of circuit diagram attached)
• Switches off intermittently. Standby LED (red-green) flashes. Picture drops out. (part of circuit diagram displayed)
• Vertical linearity is upwards a little sharp. Picture has shifted upwards. (extract of circuit diagram attached)
• Horizontal white line. (with circuit diagram extract)
• As the set warms up the picture flashes cyan every few seconds. (picture attached)
• No sound or picture. Snowy screen (picture with test signal). Vertical interference bars. (with circuit diagram extract)
• Picture and sound drop out. Appliance jumps to channel 1.
• Red flashing when changing channels with VCR playback in the still, search modes or edit points in own recordings. (extract of circuit diagram attached)
• Connection of a loop system to the TV. (703765 tip from OTTOVERSAND)
• Connection of a loop system to the TV. (703765 tip from OTTOVERSAND)
• No picture and sound. Buzz from power supply transformer.
• White screen.
• BU508 blows one min after HT transistor (BU508AF) has been replaced. Picture OK during this one min.
• Low picture amplitude. Barrell-shaped picture. (part of circuit diagram displayed)
• Does not switch on from standby. LED blinks and goes off or changes to red and then no more functions.
• Smoke from +12V resistor. (extract of circuit diagram attached)
• Top of text is ringing. Intermittent text.
• Loss of red, green or blue or excessive red, green or blue pictures.
• Dead. Error code F1 displayed.
• Lines in picture. on the left.
• Dark picture. Audio OK . (picture attached)
• Poor NICAM sound from left hand speaker.
• No tuner reception. Search display functions well but appliance does not pick up any channel. (extract of circuit diagram attached)
• Power supply breaks down. (part of circuit diagram displayed)
• White picture and no amplitude when cold. Picture pumping. (with circuit diagram extract)
• Luminance takes a long time to appear. Distorted picture, focus pot does not react sufficiently. (+ extract of circuit diagram)
• Lower picture third is dark. Upper picture is dispersed. (part of circuit diagram displayed)
• Ghosts and poor colours. (part of circuit diagram displayed)
• Picture is not linear. Black bar at bottom of picture. (+ extract of circuit diagram)
• Fails in standby. (with circuit diagram extract)
• Cannot be switched to standby. After the first attempt appliance is blocked. (picture attached)
• Picture leans too much to one side, Black line visible in the picture. (+ extract of circuit diagram)
• Mono/stereo display error. (part of circuit diagram displayed)
• No function. On start-up easy chirp is audible. (picture attached)
• Intermittent power supply shut down, the picture goes off for a split second, the display flickering in sympathy.
• Difficult horizontal and vertical adjustment and sawtooth at the side. (with circuit diagram extract)
• 185V instead of 148V. When taking a measurement on collector of TZ 7652, bulb goes off. (+ extract of circuit diagram)
• Picture flickers intermittently, sound disappears. Picture reappears by itself, sound doesn't but can be activated with the RC. (703765 tip from OTTOVERSAND)
• BU508 blows after 1 or 2 days. (picture attached)
• Dark screen. in TXT.
• Goes into safety mode if it is left in standby then switched on via the switch. Starts normally if speaker or HT O/C. (part of circuit diagram displayed)
• When switched to standby U1 becomes 60V. PSU goes to limiting. (+ extract of circuit diagram)
• +148V drops to 100V occasionally according to the tube output. (with circuit diagram extract)
• Line output transistor fails repeatedly. intermittently. (+ extract of circuit diagram) (OTTOVERSAND - 703765 information)
• No sound or picture. Appliance appears to be in AV. (with circuit diagram extract)
• Flickering text and apparent tuning drift.
• Reduced horizontal size. intermittently.
• PSU voltage low at 20V. (with circuit diagram extract)
• Picture varies with beam current. (extract of circuit diagram attached)
• Page 811 appears spontaneously. (part of circuit diagram displayed)
• No brightness. No audio. Raster OK . (+ extract of circuit diagram)
• No start-up from standby with RC.
• Red picture. after a while. (with circuit diagram extract) (703765 OTTOVERSAND repair tip)
• 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)
• Faded picture. No contrast. (extract of circuit diagram attached)
• No colour in French standard. (+ extract of circuit diagram)
• Chroma fault in SECAM. (with circuit diagram extract)
• Flash over on picture tube print.
• No picture. when cold. Audio OK . (+ extract of circuit diagram)
• Humming noise from transformer. in standby. (with circuit diagram extract)
• Blows chopper transistor when switching on with remote. (extract of circuit diagram attached)
• No picture. No audio. OK via SCART . (with circuit diagram extract)
• Start with interfering voltage. (extract of circuit diagram attached)
• Channel change impossible after a moment. Channel remains displayed and front LED becomes orange. (extract of circuit diagram attached)
• No channels.
• East/west raster distortion: width and shaping control do not function.
• No TXT. (part of circuit diagram displayed)
• Does not switch to standby. Picture remains on screen. (+ extract of circuit diagram)
• Secondary voltage cannot be adjusted lower than 160V. PSU however can be regulated with this voltage. (703765 tips)
• Vertical bars on channels 2 and 4 (picture attached)
• Oval picture.
• Intermittent black picture with TXT. Intermittent TXT in picture.
• Dark screen. No OSD. (extract of circuit diagram attached)
• F4 displayed. LED flashes green then orange for slightly less than a sec. (part of circuit diagram displayed)
• Buzzing from PSU. in standby. (part of circuit diagram displayed)
• Control micro processors.
• Frayed vertical lines. (with circuit diagram extract)
• Volume uncontrollable. No brightness control.
• Power supply problem. (+ extract of circuit diagram) (703765 OTTOVERSAND repair tip)
• +120V instead of +148V. (part of circuit diagram displayed)
• Connection of the loop system to the TV.
• No audio. F2 error.
• One colour missing.
• Colour blobs in the picture.
• References for transistors 7615 and 7612.
• When put into standby tube remains lit. Picture cuts out normally. (with circuit diagram extract) (703765 tips)
• No start-up. intermittently. (with circuit diagram extract)
• No picture. Grey screen. Brightness control works normally. (extract of circuit diagram attached)
• Undefined Stereo-Mono switch over.
• Reduced vertical size. (picture attached)
• Coloured flash on channel change and VCR features. (picture attached)
• Transistor 7545 (BU508AF) is blown. (picture attached)
• Slow start-up. Audio OK . (extract of circuit diagram attached)
• Power supply is low when warm. (picture attached)
• In Standby BUT18AF (T7625) becomes defective.
• PSU transistor (BUT18A) becomes defective right after start-up.
• T7637 blown. (with circuit diagram extract)
• Poor field linearity.
• Hum bar.
• Sound drops out.
• Poor width regulation with brightness. (extract of circuit diagram attached)
• BUT11 becomes defective after 3 days of use. (+ extract of circuit diagram)
• Switching transistor T7625 has failed. (with circuit diagram extract)
• Dark picture. intermittently. (extract of circuit diagram attached)
• Line output stage periodically fails. (part of circuit diagram displayed)
• After start up, PSU fails. (+ extract of circuit diagram)
• Starts without picture and audio then switches off after a few seconds.
• No switch on. Red LED flickers for 3 seconds.
• PSU fuse blown. (picture attached)
• Darker bar on left of screen. (part of circuit diagram displayed)
• Strange noise in loudspeakers. (extract of circuit diagram attached)
• Insufficient picture height which can be adjusted. Poor E/W.
• Orange spots on the right of the screen. (OTTOVERSAND - 703765 information)
• Distorted picture. at top. (extract of circuit diagram attached)
• Character error.
• Set does not start-up after implementing SOPS kit. (picture attached)
• F5 displayed on a screen corner. Occasionally channels switch over to channel 1 or TV switches off.
• Defective T7545. (part of circuit diagram displayed) (service info for OTTOVERSAND -703765)
• No audio. after a while. (extract of circuit diagram attached)
• Dark picture. at bottom. Stretched picture. at top. (+ extract of circuit diagram)
• Picture is affected by frizzy lines occasionally with crackling noise in the speakers and perhaps with a burnt smell. (with circuit diagram extract)
• Undefined STEREO mono switch over. OSD mono STEREO display present. (picture attached)
• No colour. intermittently. (picture attached)
• Diode D6653 installation sops kit.
• Dark screen. via tuner. Audio and OSD OK . (+ extract of circuit diagram)
• Chopper transistor (BUT18AF), rectifier diodes and mains fuse become defective instantly. (extract of circuit diagram attached)
• Finds emitters during channel search but does not stop. (+ extract of circuit diagram)
• No output voltage.
• White area visible on right side of screen in EXT1 mode of BL sets. (with circuit diagram extract)
• Black screen. intermittently. (part of circuit diagram displayed)
• Value of 3525 in the vertical amplifier situated in front of the line transformer towards tube 4 beside cushion 3521.
• If mains switched off when in standby, it does not start up again. Light off. (+ extract of circuit diagram)
• Poor horizontal centering. (with circuit diagram extract)
• Occasionally picture seems to be coded on all the channels especially when cold. (part of circuit diagram displayed)
• BUT18AF fails repeatedly. (extract of circuit diagram attached)
• No tuning. when cold. (with circuit diagram extract)
• TXT problem. Some characters do not display.
• Functions but heat sink gets very hot after 10 mins. When put into standby, noise in the PSU. (picture attached) (703765 tip from OTTOVERSAND)
• Error codes. (with circuit diagram extract)
• TV locked by and keys.
• Red standby light then dead at switch on. TV starts up on the variac. (extract of circuit diagram attached)
• Picture shifted to the right. Poor synchronisation. (picture attached)
• Excessive vertical size. (picture attached)
• Picture jitters and vertical bars distorted on cross-hatched pattern. Blue horizontal bars. (extract of circuit diagram attached)
• Line end stage U/syst collapses to approx. 48V. (with circuit diagram extract)
• No colours. After approx an hour colours appear with fluctuations. (part of circuit diagram displayed)
• Dark background and a band of colour on the right. (picture attached)
• Operating voltage stabilises at 50V. (extract of circuit diagram attached) (703765 tip from OTTOVERSAND)
• Adjustment black line matrix.
• Slow start-up. (extract of circuit diagram attached) (OTTOVERSAND - 703765 information)
• No LED lit. (with circuit diagram extract)
• S/C in EHT stage. (picture attached)
• Does not decode Canal Plus no the sound. Green LED flashes. (with circuit diagram extract)
• Set functions with the variac but BUT11AF blows when appliance is plugged in. (part of circuit diagram displayed)
• Horizontal end stage BU508AF short circuits after different playing times. (extract of circuit diagram attached)
• No picture and no sound. (+ extract of circuit diagram)
• No luminance. (+ extract of circuit diagram)
• Local dooming - spots in the picture.
• Contrast adjustment inoperative, colour streaks. (part of circuit diagram displayed)
• No operation. (+ extract of circuit diagram)
• The screen is white and there is no sound. The line transistor blows after 5 minutes. (+ extract of circuit diagram)
• BUT18AF is defective and is destroyed when appliance is switched on. (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) (703765 tip from OTTOVERSAND)