703766 / OTTOVERSAND [TV]

• Poor OSD. Unusual colour of some characters. (picture attached)
• PSU no function.
• Sometimes the BUT18AF goes defective. (+ extract of circuit diagram)
• Egg-shaped picture, picture is pushed upwards. Underneath 5cm black bar. (+ 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)
• No start-up from standby with RC.
• Appliance runs ok, but if remote used to switch to standby, appliance goes dead. (extract of circuit diagram attached)
• F4 displayed. LED flashes green then orange for slightly less than a sec. (+ extract of circuit diagram)
• No control signal to IC7470 (TDA) and no line scanning. (extract of circuit diagram attached)
• No raster. (part of circuit diagram displayed)
• Poor audio. only on certain channels. Crackling audio. (OTTOVERSAND - 703766 information)
• No colour. intermittently. (with circuit diagram extract)
• No light lit. (with circuit diagram extract)
• Vertical foldover at top.
• Trips. (picture attached)
• With high volume the appliance switches spontaneously to standby. (extract of circuit diagram attached)
• No audio. when cold. No OSD. when cold. (part of circuit diagram displayed)
• Orange spots on the right of the screen.
• Dark screen. in TXT.
• PSU blown.
• Tuning drifts. after a while.
• No vertical deflection. intermittently. (extract of circuit diagram attached)
• Poor regulation of the power supply. (part of circuit diagram displayed) (service info for OTTOVERSAND -703766)
• Channels run through. (extract of circuit diagram attached) (703766 tip from OTTOVERSAND)
• Does not store settings. (with circuit diagram extract)
• 17V instead of 140V. (extract of circuit diagram attached)
• Chopper transistor (BUT18AF) fails if appliance is switched on from standby. (+ extract of circuit diagram) (703766 tips)
• Picture flickers the first 5 minutes. Gradually becomes less but very visible in the dark portions of the screen.
• When switched to standby U1 becomes 60V. PSU goes to limiting. (picture attached)
• No picture. Bright raster. Flyback lines. Audio OK . (part of circuit diagram displayed)
• Vertical collapse. intermittently. (picture attached)
• The standby thyristor blows. (+ extract of circuit diagram)
• Picture and sound drop out. Appliance jumps to channel 1.
• Humming noise from transformer. in standby. (picture attached)
• Incorrect reception. 33V ok. Picture ok in scart. (service info for OTTOVERSAND -703766)
• Retrace lines. intermittently.
• On the test picture, distorted, vertical lines at top and bottom of the screen. (picture attached)
• Negative picture when cold and sometimes intermittently. (extract of circuit diagram attached)
• The horizontal centering cannot be adjusted correctly. It may have shifted after the appliance has warmed up.
• Dark screen. via tuner. Audio and OSD OK . (+ extract of circuit diagram)
• When cold, picture takes approx 2.5 mins to appear instead of 15 secs. When warm it takes 20 secs. (extract of circuit diagram attached)
• Colour bar at right of screen. (extract of circuit diagram attached)
• Vertical size varies. Vertical jitter.
• No teletext and OSD is hardly visible. The regular picture vibrates if appliance is switched to teletext. (+ extract of circuit diagram)
• Line output transistor fails repeatedly. after a while. (picture attached)
• Ragged picture.
• Blows components. after a few minutes. (extract of circuit diagram attached)
• Poor linearity. (part of circuit diagram displayed)
• Vertical roll. when cold. (with circuit diagram extract)
• R3653 burns. (with circuit diagram extract) (703766 tip from OTTOVERSAND)
• Memory loss. (+ extract of circuit diagram)
• Smoke from +12V resistor. (extract of circuit diagram attached)
• No 9V. (picture attached)
• Snow on screen and no tuner reception. F3 displayed on screen. Green LED on.
• In standby tries to operate spontaneously. (extract of circuit diagram attached)
• TS7625 (BUT 18AF) fails again. (+ extract of circuit diagram)
• After a power supply fault caused by a storm video is defective. CTV in AV retains the picture of the TV programme which is being watched. Sound cuts out but OSD EX1 appears and the channel no. remains. (extract of circuit diagram attached)
• No start-up. (part of circuit diagram displayed)
• Appliance starts intermittently with no standby. (part of circuit diagram displayed)
• No tuner reception. Search display functions well but appliance does not pick up any channel. (part of circuit diagram displayed)
• Jagged picture. (part of circuit diagram displayed)
• Operating voltage stabilises at 50V. (extract of circuit diagram attached)
• 148=68V. (with circuit diagram extract)
• Discharging noise. via speakers.
• Dark picture. at bottom. Stretched picture. at top. (with circuit diagram extract) (703766 OTTOVERSAND repair tip)
• Picture shifted to the right. Poor synchronisation. (+ extract of circuit diagram)
• Set does not start-up after implementing SOPS kit. (picture attached)
• Faulty TXT. No TXT. intermittently.
• T7637 blown. (+ extract of circuit diagram) (703766 tips)
• +16V flashover. (extract of circuit diagram attached)
• Mains fuse O/C and BUT S/C. (extract of circuit diagram attached)
• Reduced vertical size. (+ extract of circuit diagram)
• Vertical foldover at top and bottom. (picture attached)
• Appliance only functions until the 120V is reached with the variac. When the mains voltage is increased the appliance fails. (with circuit diagram extract)
• When warm, there is a raster fault on the left. (picture attached)
• Character error.
• Faulty TXT. (+ extract of circuit diagram)
• Lacks contrast. No reaction on the plus or minus key of the contrast button. Other commands are ok. (703766 tips)
• No adjustment from PSU possible. (picture attached)
• Chopper transistor failure. (part of circuit diagram displayed)
• Horizontal output stage fails again after some time. (extract of circuit diagram attached)
• No audio. after a while. (+ extract of circuit diagram)
• Coloured flash on channel change and VCR features. (extract of circuit diagram attached) (703766 OTTOVERSAND repair tip)
• TV locked by and keys.
• Horizontal size varies. (with circuit diagram extract)
• BU508 blows one min after HT transistor (BU508AF) has been replaced. Picture OK during this one min.
• Colour flickering during video editing.
• Dark screen. No picture. No RC functions. (picture attached)
• Black screen. No brightness. Audio OK . (part of circuit diagram displayed)
• No E/W correction. Pincushion distortion. (extract of circuit diagram attached)
• Picture flickers for approx 5 mins after switch on when cold, then everything normal as soon as appliance reaches room temperature.
• Too high power supply. (picture attached)
• No button operation. intermittently. (picture attached)
• At start up goes immediately into standby. 12C BUS blocks at 5V. (picture attached)
• Line pairing at top half of the picture (extract of circuit diagram attached)
• Black horizontal lines. (picture attached)
• Excessive horizontal size. Picture size varies with picture content. (picture attached) (703766 OTTOVERSAND repair tip)
• Snow on screen and no reception. F4 displayed on screen. Green LED lit. (extract of circuit diagram attached)
• BUT18, R3570 and F1534 blow. (with circuit diagram extract)
• Line output transformer failure.
• Undefined Stereo-Mono switch over.
• Vertical synchronisation fault when hot and presence of white line, then picture disappears (with circuit diagram extract)
• EXT1 switchover is defective, terrestrial program remains.
• Snow in picture. (+ extract of circuit diagram)
• No picture. No display. Erratic functions. (part of circuit diagram displayed)
• No picture. Audio and OSD OK .
• Functions with an automatic transformer up to 110, 120V. (extract of circuit diagram attached)
• Power supply crackles when power supply is low. (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)
• Squealing from PSU. after start-up. (picture attached)
• BUT11 in power supply defective after few days, or when in standby. (part of circuit diagram displayed) (service info for OTTOVERSAND -703766)
• Flyback lines. intermittently.
• Reduced vertical size at bottom.
• Occasionally picture seems to be coded on all the channels especially when cold. (with circuit diagram extract)
• Repeated failure of CRT.
• Interference in picture. when cold. (picture attached)
• PSU voltage low at 20V. (+ extract of circuit diagram) (OTTOVERSAND - 703766 information)
• Lines in picture. on the left.
• EHT problems. (part of circuit diagram displayed)
• Red light flashes for approximately 3 seconds then zero.
• Connection of the loop system to the TV.
• Nasal sound on channels 5 and 6. (extract of circuit diagram attached)
• +148V drops to 100V occasionally according to the tube output. (part of circuit diagram displayed)
• Dark screen. No OSD. (picture attached)
• Regulation does not function without a load. (picture attached)
• BUT18 fails repeatedly. (picture attached)
• Intermittent fault all over the screen or over an irregular width band leading to line foldover, similar to coded Canal Plus picture. (picture attached)
• No start-up with mains switch after switched off from standby.
• BUT transistor becomes S/C either at switch on or after a certain period of time. (extract of circuit diagram attached)
• Reduced format, flyback line slightly visible. (+ extract of circuit diagram)
• Audio drop out or mute.
• When warm, picture foldover and the line BU blows. (part of circuit diagram displayed)
• Power supply too low (70V). (extract of circuit diagram attached)
• Black screen. intermittently. (with circuit diagram extract)
• No luminance. (part of circuit diagram displayed)
• Blank raster. No tuning.
• Switch on during standby only functions when RC is very close to the appliance.
• No function, only hums. (+ extract of circuit diagram)
• BUT18 is defective. (extract of circuit diagram attached) (service info for OTTOVERSAND -703766)
• Difficult to set up east/west and width controls. (with circuit diagram extract) (service info for OTTOVERSAND -703766)
• HV capacitor burns. (picture attached)
• BUT18 and rectifier bridge blow every two days even after modifications.
• Reduced horizontal size. after a while. (part of circuit diagram displayed)
• Impossible to adjust horizontal shift of picture using R3595. (with circuit diagram extract)
• Thyristor fails in PSU in standby. Otherwise appliance OK. (with circuit diagram extract)
• Causes for appliance going into safety mode.
• Horizontal stripe. (+ extract of circuit diagram)
• Switches to protection mode. intermittently. (extract of circuit diagram attached)
• Horizontal stripe. intermittently. (extract of circuit diagram attached)
• Slow start-up. Switches to standby. (with circuit diagram extract)
• Width of picture pumps according to picture content and narrows with a strong white. (part of circuit diagram displayed)
• Mono/stereo display error. (extract of circuit diagram attached)
• No sound or vision, display going to F1.
• No picture. TXT OK . (extract of circuit diagram attached)
• Blows chopper transistor at switch on.
• S/C in EHT stage. (+ extract of circuit diagram)
• Line output stage periodically fails. (part of circuit diagram displayed)
• The line transistor blows after 5 minutes. (part of circuit diagram displayed)
• Line BU blows after operating for 3-5 mins. (with circuit diagram extract)
• White area visible on right side of screen in EXT1 mode of BL sets. (part of circuit diagram displayed)
• Slow start-up. Audio OK . (+ extract of circuit diagram)
• White picture on the right side in EXT1 mode.
• Reduced raster size. (extract of circuit diagram attached) (703766 tips)
• The sound fails: after changing over to a different channel, the sound is back. (+ extract of circuit diagram)
• Occasionally standby thyristor 6670 S/C. (part of circuit diagram displayed)
• Red LED blinking for 3 secs.
• Green LED does not light up. Power supply oscillates. (+ extract of circuit diagram)
• 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)
• Poor picture synchronisation during station switch-over. Vertical picture jitter, runs through, poor picture via RF or EXT. (with circuit diagram extract)
• BU508AF fails repeatedly. (extract of circuit diagram attached) (OTTOVERSAND - 703766 information)
• PCD8582 and X2402 memory. (picture attached)
• Reduced horizontal size. Vertical foldover. in the centre. (extract of circuit diagram attached)
• Functions but heat sink gets very hot after 10 mins. When put into standby, noise in the PSU. (part of circuit diagram displayed)
• No audio. Picture OK . (+ extract of circuit diagram)
• The bottom half of the raster is missing, with the top cramped.
• When switching on the appliance when it's cold, it takes about 35 seconds before the picture appears. (part of circuit diagram displayed)
• Picture fault in tuner and scart.
• Poor vertical linearity. Reduced vertical deflection. (part of circuit diagram displayed) (703766 OTTOVERSAND repair tip)
• No start-up. Standby LED does not light. (picture attached)
• No sound. No response to commands from both RC and front panel. Error message F2 on screen. Picture ok. (picture attached)
• No picture. in E-E. Audio OK .
• When switching on, HV part hums. No control function is possible. (part of circuit diagram displayed)
• One colour missing.
• Starts without picture and audio then switches off after a few seconds.
• Vertical bar. on the left. (with circuit diagram extract)
• Secondary voltages fall when loaded. (part of circuit diagram displayed)
• Lines on picture and sections blanked out. No TXT. (part of circuit diagram displayed)
• Does not switch to standby. LED turns pink. Picture remains. Sound mutes. (extract of circuit diagram attached)
• Local dooming, especially with high contrast. (part of circuit diagram displayed)
• U system only 5V instead 148V. (extract of circuit diagram attached)
• Blank screen. Audio OK . (service info for OTTOVERSAND -703766)
• Tuning does not function, drifts, raster doubles up. Vertical sychronisation fault. (picture attached) (703766 OTTOVERSAND repair tip)
• No red, green and blue go through correctly. TEA5101A and TDA8390 have been changed. (part of circuit diagram displayed)
• Ballooning and incorrect picture linearity.
• 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) (OTTOVERSAND - 703766 information)
• Power supply falls to approx 40V AC on the variac. (picture attached)
• Light green picture despite adjusting. Impossible to get red. (+ extract of circuit diagram)
• Blurry picture.
• Red picture. after a while. (+ extract of circuit diagram)
• Channel change impossible after a moment. Channel remains displayed and front LED becomes orange. (+ extract of circuit diagram)
• Intermittently BUT18 defective after switching on. (with circuit diagram extract)
• No TXT, just lines on screen.
• TV blocked in F3.
• No function. On start-up easy chirp is audible. (picture attached)
• Videotext has turbulent text content in upper section.
• Extra protection for chopper transistor TR7625 (BUT18AF). (part of circuit diagram displayed)
• Power supply fuse (18A) defective after 1 hr or less. (part of circuit diagram displayed)
• No functions. Power LED lit . (extract of circuit diagram attached)
• Finds emitters during channel search but does not stop. (with circuit diagram extract)
• Line output transistor fails repeatedly. (extract of circuit diagram attached)
• Buzzing from PSU. in standby. (extract of circuit diagram attached)
• U148V measures 20V.
• No picture. F4 lights up in the display. (picture attached)
• Replacing TDA2579. (extract of circuit diagram attached)
• Contrast adjustment inoperative, colour streaks. (part of circuit diagram displayed)
• PSU repair. (part of circuit diagram displayed)
• Hum in audio. in standby. (with circuit diagram extract)
• No horizontal synchronisation. when cold. (picture attached)
• Does not switch on from standby. LED blinks and goes off or changes to red and then no more functions.
• End stage transistor BU508 fails repeatedly at switch on. (picture attached)
• Unadjustable horizontal centering. (picture attached)
• No picture. No brightness. No sound. Picture tube filament on.
• Buzz in audio. (extract of circuit diagram attached)
• After switch on the picture is sometimes shifted and a black horizontal bar appears in the centre of the picture. (with circuit diagram extract)
• No LED lit. (part of circuit diagram displayed)
• Picture jitters. when cold. (part of circuit diagram displayed)
• No quick start pulse. (with circuit diagram extract)
• Line output transformer does not start up. (+ extract of circuit diagram) (703766 tip from OTTOVERSAND)
• No picture, only horizontal stripe on top. Picture appears only after a long while. Then picture collapses to a horizontal stripe in the centre.
• Picture collapses. Pincushion distortion. (+ extract of circuit diagram)
• Primary PSU switches off. No standby LED.
• 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.
• Switches off intermittently. Standby LED (red-green) flashes. Picture drops out. (extract of circuit diagram attached) (703766 tip from OTTOVERSAND)
• Intermittently dead. (with circuit diagram extract)
• Undefined Stereo Mono switchover.
• No vertical synchronisation. (with circuit diagram extract)
• No picture. No audio. OK via SCART . (part of circuit diagram displayed)
• When put into standby tube remains lit. Picture cuts out normally. (with circuit diagram extract)
• With Blackline picture tubes occasional or random OSD insertion.
• S/C in line output stage (7645). (picture attached)
• BUT18AF is defective and is destroyed when appliance is switched on. (+ extract of circuit diagram)
• Supply transistor BUT18A becomes defective immediately after switching on the appliance. (with circuit diagram extract)
• Switches immediately to protection mode. Functions OK when protection mode is switched off. (+ extract of circuit diagram) (703766 OTTOVERSAND repair tip)
• Faded picture. No contrast. (+ extract of circuit diagram)
• Line output transistor defective. (part of circuit diagram displayed)
• No TXT. (with circuit diagram extract)
• Vertical collapse. after a few minutes. Audio OK .
• Volume uncontrollable. No brightness control.
• No picture, teletext and sound are fine. (extract of circuit diagram attached)
• No HT output voltage of 148V. Voltage is present (approx. 158V) when disconnecting HT coils connector. (with circuit diagram extract)
• Green picture. after a while. (extract of circuit diagram attached)
• No audio. intermittently. (with circuit diagram extract)
• Intermittent failure thyristor 6670 in STANDBY mode. (extract of circuit diagram attached)
• Tuning search does not stop when appliance has found a station. (part of circuit diagram displayed) (service info for OTTOVERSAND -703766)
• 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. (extract of circuit diagram attached)
• Power supply problem. (with circuit diagram extract)
• Vertical shift incorrect, after replacing a 28" BL-CRT. (with circuit diagram extract)
• Tripping. intermittently.
• Transistor T7545 (BU508AF) becomes intermittently defective at program switch-over via "+" and "-" on user control.
• Distorted TXT. at top.
• Erratic functions. (+ extract of circuit diagram)
• Intermittently green "F5" on screen, thereby very dark picture or TXT appears. (part of circuit diagram displayed)
• Type of transistor 7594 and value of resistor R3596.
• Picture takes some time to appear. Dark screen then TV stops. Round colour spot which slowly disappears. (picture attached)
• Poor vertical linearity. Horizontal size varies. (picture attached)
• Picture size varies with picture content. (picture attached)
• Stretched picture. at top. Reduced raster size. at bottom. (with circuit diagram extract)
• Protection of T7625 (BUT18AF). (part of circuit diagram displayed)
• Vertical collapse. (with circuit diagram extract)
• No picture. when cold. Audio OK . (picture attached)
• Ticking sound. (picture attached)
• Picture shifted vertically.
• After about 3 to 4 weeks of regular play, the BUT18 and the main fuse automatically blow. (part of circuit diagram displayed)
• Picture shakes.
• Mono/Stereo-indication switches. (picture attached)
• Line output transistor fails repeatedly. after start-up.
• Red flashing when changing channels with VCR playback in the still, search modes or edit points in own recordings. (extract of circuit diagram attached)
• Horizontal line. in the centre. (+ extract of circuit diagram)
• PSU fuse blown. (part of circuit diagram displayed)
• 100V power supply is approx 35V. (extract of circuit diagram attached) (703766 tip from OTTOVERSAND)
• No sound or picture. Snowy screen (picture with test signal). Vertical interference bars. (+ extract of circuit diagram)
• Picture rolls. (extract of circuit diagram attached)
• Poor horizontal centering. (with circuit diagram extract)
• Horizontal line in the middle of screen.
• Dark picture. No picture. via SCART. No audio. via SCART. No RC functions. (+ extract of circuit diagram)
• Dark picture with thin vertical stripe in upper picture. (picture attached)
• Service mode
• Hum bar.
• No functions. intermittently. (703766 OTTOVERSAND repair tip)
• Line transformer noise. (+ extract of circuit diagram)
• Ghosts and poor colours. (+ extract of circuit diagram) (703766 OTTOVERSAND repair tip)
• Intermittent picture size.
• Blocked. (extract of circuit diagram attached)
• Shuts down. after a few minutes. (part of circuit diagram displayed) (OTTOVERSAND - 703766 information)
• Oval picture.
• Reduced horizontal size. intermittently.
• Appliance starts up with the variac until it reaches 100V and then the appliance fails. (+ extract of circuit diagram)
• PSU fails after a short time (S/C of BUT18AF). (with circuit diagram extract)
• Vertical bars on channels 2 and 4 (picture attached)
• No switching into CCIR standard. Display ok in SECAM and PAL/SECAM. (picture attached)
• BU508 blows after 1 or 2 days. (with circuit diagram extract) (703766 tip from OTTOVERSAND)
• Dark background and a band of colour on the right. (picture attached)
• Sound is noisy.
• Picture is stretched - begins 5cms from bottom of the screen and is missing approx 1cm East/West. Appliance functions. (picture attached)
• 148V measures 60V. (picture attached)
• No sound at some stations or audio failure. Via scart OK. (703766 tip from OTTOVERSAND)
• Excessive blue.
• PSU defective. (+ extract of circuit diagram)
• Intermittently blown Wickman fuse 1534.
• White picture and no amplitude when cold. Picture pumping. (extract of circuit diagram attached)
• Over-voltage circuit active. (part of circuit diagram displayed)
• Vertical defective, too large line space in upper picture third. Linearity fault. (extract of circuit diagram attached)
• No synchronisation.
• Crackle a few seconds after Power On. (+ extract of circuit diagram)
• After a few secs in standby, 7625 and fuse destroyed. (picture attached) (703766 OTTOVERSAND repair tip)
• S/C from point 18 at line transformer to the ground. (with circuit diagram extract)
• Line output transformer overheats. (with circuit diagram extract)
• Defective BUT.
• Coloured spots in picture (local dooming). (+ extract of circuit diagram)
• Fails in standby. (with circuit diagram extract)
• Vertical deflection is defective. A piece is missing at the bottom and at the top the lines are pulled apart. (part of circuit diagram displayed)
• Contrast variations with subtitling in sets with BL-CRT. (extract of circuit diagram attached)
• PSU blocking. (extract of circuit diagram attached) (703766 tip from OTTOVERSAND)
• Intermittent black picture with TXT. Intermittent TXT in picture.
• Difficult horizontal and vertical adjustment and sawtooth at the side. (extract of circuit diagram attached)
• Hum in audio. (extract of circuit diagram attached)
• Change in picture width depending on beam current. (picture attached)
• Grey screen. (extract of circuit diagram attached)
• TXT problem. Some characters do not display.
• Fuse 2A and BUT18 immediately defective at switch on with RC. Fault does not occur when switching on with on/off switch or by connecting mains plug. (extract of circuit diagram attached)
• Dark screen and bright bar at the top. Clock is strange. Sound present. (part of circuit diagram displayed)
• Does not stop at stations. Station search OK. (extract of circuit diagram attached)
• Control micro processors.
• Brightness differences in picture. (+ extract of circuit diagram) (703766 tip from OTTOVERSAND)
• The front control panel changes channels upwards but not downwards. All other functions OK.
• Chroma fault in SECAM. (with circuit diagram extract)
• No sound when input connection made via 2 S-VHS phono sockets.
• Goes into safety mode if it is left in standby then switched on via the switch. Starts normally if speaker or HT O/C. (picture attached)
• Excessive brightness. (part of circuit diagram displayed)
• Poor RC sensitivity.
• Does not go into standby. LED becomes orange but picture remains. (extract of circuit diagram attached)
• Shuts down. after a while. LED blinks .
• Noise in audio.
• Power supply goes into safety mode and crackles. (picture attached) (service info for OTTOVERSAND -703766)
• Dark picture. intermittently. (with circuit diagram extract)
• On channels 2 and 4 vertical lines on the left hand side of the picture.
• Intermittently screen blanks out. Random characters on screen.
• PSU becomes defective after switch on via mains switch.
• No horizontal deflection. (part of circuit diagram displayed)
• One single line in the middle of the screen. (+ extract of circuit diagram)
• BUT11AF S/C. (+ extract of circuit diagram)
• The appliance functions correctly in standard B,G but the sound hums in F standard. (picture attached)
• Defective standby thyristor (SFOR5D43). (extract of circuit diagram attached)
• BUT18AF blows in standby on the collector. (picture attached)
• No picture. when cold. (part of circuit diagram displayed)
• No sound, even with in or out scart.
• Microprocessor/eprom screening plate. (with circuit diagram extract)
• Doesn't switch into standby. Green LED goes orange and flashes after pressing standby key .
• Capacitor 2545 in PSU burns. (with circuit diagram extract)
• Line tearing and picture quiver at the edges.
• To give improved protection to the BUT11AF chopper transistor TR7665.
• Purity fault. (+ extract of circuit diagram)
• Dead set caused by lightning damage. (with circuit diagram extract)
• Low contrast. (extract of circuit diagram attached)
• Low contrast. in TXT. (extract of circuit diagram attached)
• Poor field linearity.
• Intermittent power supply shut down, the picture goes off for a split second, the display flickering in sympathy.
• Connection of a loop system to the TV.
• No picture and sound. Buzz from power supply transformer.
• No functions. LED lit. . (picture attached)
• Interference in picture. No picture. No audio. (+ extract of circuit diagram)
• Protection for BUT18AF in PSU.
• No picture and no sound. (+ extract of circuit diagram)
• Protective circuit starts up. (with circuit diagram extract)
• Power supply is low when warm. (extract of circuit diagram attached)
• In Standby BUT18AF (T7625) becomes defective.
• No horizontal synchronisation. (picture attached)
• After start up, PSU fails. (extract of circuit diagram attached)
• Cannot be switched to standby. After the first attempt appliance is blocked. (+ extract of circuit diagram)
• Can not be switched off in Standby position. When starting, LED becomes orange and blows. (part of circuit diagram displayed)
• POR signal too low. (extract of circuit diagram attached)
• Problems with flof TXT. Cannot find p.811 in spite of it being sent out. TXT header remains with subtitling. (part of circuit diagram displayed)
• Poor frame linearity when cold. Picture is distorted vertically. (extract of circuit diagram attached)
• Dead. Soft ticking sound.
• Displays error code F4. When you switch to standby again, F4 appears again. LED flashes. Only noise. (extract of circuit diagram attached) (OTTOVERSAND - 703766 information)
• Horizontal shift no function.
• HT varies intermittently.
• Searches for channels continuously. (picture attached)
• Appliance does not start up. Crackling. (with circuit diagram extract)
• Raster signal problem.
• No channels.
• Dead. intermittently.
• Lower picture third is dark. Upper picture is dispersed. (+ extract of circuit diagram)
• No brightness. No audio. Raster OK . (+ extract of circuit diagram)
• Set can be turned off with RC, but not turned on. S.B. LED blinks. (picture attached)
• Occasionally BUT18 blows in standby. (extract of circuit diagram attached)
• PSU chirps. (with circuit diagram extract)
• No start-up. intermittently. (part of circuit diagram displayed)
• White square in a corner of the screen. (extract of circuit diagram attached)
• Stuck on channel 1.
• Humming noise from transformer. Line output transistor fails repeatedly. (+ extract of circuit diagram)
• Does not switch to standby. Horizontal line. LED blinks . (picture attached)
• No sound in scart. Sound and picture via the tuner. The appliance does not pick up anything. (+ extract of circuit diagram)
• Very loud sound at switch but normal at previous switch off. Adjustment OK.
• Vertical stripes at left picture edge via channel 2 and 4. (part of circuit diagram displayed) (703766 tips)
• Picture flickers intermittently, sound disappears. Picture reappears of itself, sound doesn't but can be activated with the RC. (service info for OTTOVERSAND -703766)
• BU508 defective after switching channel (when appliance is warm). (part of circuit diagram displayed)
• Sound and picture pulsating (2 times a sec) only via tuner.
• Vertical shaking. (with circuit diagram extract)
• The resistors 3661 and 3662 burn in standby, TS7625 is also defective sometimes. (picture attached)
• Search stops with good tuning.
• Line BU508blows after 3 days. (+ extract of circuit diagram)
• In VCR there are only chroma lines. (+ extract of circuit diagram)
• Frizzy lines on the picture.
• Local dooming / PP-settings. (picture attached)
• Darker bar on left of screen. (part of circuit diagram displayed)
• Power supply breaks down. (part of circuit diagram displayed) (703766 tips)
• Blue picture. after a while. (with circuit diagram extract)
• No E/W correction. (picture attached)
• PSU transistor (BUT18A) becomes defective right after start-up.
• Switches on for a few secs with extreme brightness. No picture. Sound OK. Goes into safety mode immediately after.
• F5 displayed on a screen corner. Occasionally channels switch over to channel 1 or TV switches off.
• No colour. when cold. Poor colour. after warm-up. (with circuit diagram extract)
• Dead. Humming noise from transformer. (part of circuit diagram displayed) (703766 OTTOVERSAND repair tip)
• Poor chroma identification in Pal/Secam. On channels 5, 6 or with VCR, blue or red bands. (+ extract of circuit diagram) (703766 tip from OTTOVERSAND)
• Fuse and PSU BU (BUT18AF) defective.
• Start with interfering voltage. (extract of circuit diagram attached)
• Transistor 7545 (BU508AF) is blown. (extract of circuit diagram attached)
• No PAL chroma.
• Switches to protection mode. (extract of circuit diagram attached)
• Picture leans too much to one side, Black line visible in the picture. (+ extract of circuit diagram)
• Dark picture.
• No function. Buzzing noise. (+ extract of circuit diagram) (OTTOVERSAND - 703766 information)
• Picture linearity error. Picture has shifted towards top. Picture folds over at the bottom.
• Goes to blank screen with unlocked TXT lines when TXT selected.
• Usys voltage of line output stage collapses to approx 48V. (part of circuit diagram displayed)
• No red. (extract of circuit diagram attached) (OTTOVERSAND - 703766 information)
• Low brightness (even after turning up the preset in the U200 module).
• Red standby light then dead at switch on. TV starts up on the variac. (extract of circuit diagram attached)
• Picture is too wide or too small when adjusting horizontal size.
• Local dooming - spots in the picture. (service info for OTTOVERSAND -703766)
• Takes approx 1 minute to come on, will not switch to standby, sound mutes but pulsating picture remains. (with circuit diagram extract)
• Sound only at program switch-over. (part of circuit diagram displayed)
• BUT18 blows at 100V on the variac.
• No power supply, protection circuit triggered. (with circuit diagram extract)
• 6cm black bar at bottom of picture.
• Defective T7545. (+ extract of circuit diagram) (703766 tip from OTTOVERSAND)
• Colour flickering during video editing.
• Poor regulation. (+ extract of circuit diagram)
• Loss of colour or no colour. (OTTOVERSAND - 703766 information)
• Diode D6653 installation sops kit.
• Black screen. Audio OK . (part of circuit diagram displayed)
• Low picture amplitude. Barrell-shaped picture. (extract of circuit diagram attached)
• No contrast control. (with circuit diagram extract)
• Top of TXT waves from side to side. (picture attached)
• Power supply blows when put into standby. (+ extract of circuit diagram)
• Unstable AFC. Noisy picture. (extract of circuit diagram attached) (service info for OTTOVERSAND -703766)
• Cramped at bottom with slight foldover.
• Excessive vertical size. (picture attached)
• +120V instead of +148V. (+ extract of circuit diagram)
• Set dead, power supply refuses to start. Also intermittent start and no standby (picture attached)
• Slow start-up. (picture attached)
• SOPS power supply repeatedly becomes defective. (picture attached)
• No picture. after a while. White screen. (+ extract of circuit diagram)
• Sound was OK but there was no vision for the first 10 mins after switch on. (with circuit diagram extract)
• Line end-stage has no function. (service info for OTTOVERSAND -703766)
• Switches off after operation time. LED goes off. Dead. Can be turned on via mains switch, then switches off again after operation time.
• Picture flickers intermittently, sound disappears. Picture reappears by itself, sound doesn't but can be activated with the RC.
• Thyristor TR7670 breaks down after two days (loose contacts). (part of circuit diagram displayed) (703766 tip from OTTOVERSAND)
• Vertical foldover. (part of circuit diagram displayed)
• No HV. (with circuit diagram extract)
• Wavy picture. at top.
• No colour. (with circuit diagram extract)
• Only pulsates once. Resistor R3661 in the 5V rail is burnt.
• S/C in 148V line. (with circuit diagram extract)
• Transformation in K' (only for stereo versions). (with circuit diagram extract)
• No functions. intermittently. LED blinks . Shuts down. (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. (part of circuit diagram displayed)
• Horizontal, bright line.
• Loud noise. (picture attached)
• White screen.
• PSU has no function.
• Horizontal line. Audio OK . (part of circuit diagram displayed)
• LED lights up for a moment. TV is dead. Light on the power supply sometimes functions. (picture attached) (703766 tips)
• No colours. After approx an hour colours appear with fluctuations. (extract of circuit diagram attached)
• No MONO audio. STEREO OK . (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. (picture attached) (service info for OTTOVERSAND -703766)
• Thyristor goes S/C when switched to standby. (part of circuit diagram displayed)
• No picture, no sound, no display, 148V is reduced to approx 50V.
• Picture is affected by frizzy lines occasionally with crackling noise in the speakers and perhaps with a burnt smell. (with circuit diagram extract)
• No start up. No front panel LED. Quiet noise from loud-speakers. (703766 tip from OTTOVERSAND)
• Picture jitters and vertical bars distorted on cross-hatched pattern. Blue horizontal bars. (+ extract of circuit diagram)
• No OSD. intermittently. (+ extract of circuit diagram)
• Doesn't function with dummy load. (picture attached)
• Beam current dependent picture width fault. (+ extract of circuit diagram)
• Horizontal deflection BU fails after a few hours.
• Dark picture. Audio OK . (+ extract of circuit diagram)
• E-W output stage fails as soon as the appliance is switched on. Fuse 1534 (315mA) also fails. (extract of circuit diagram attached)
• Switching transistor in power supply goes short circuit (BUT18).
• References for transistors 7615 and 7612.
• Works correctly but power supply BUT11 blows after 3 weeks. (with circuit diagram extract)
• Noise in picture. (+ extract of circuit diagram)
• Intermittent colour.
• TXT has no function. TXT is activated but only dark screen.
• Vertical sync does not stop. (with circuit diagram extract)
• Tuning search does not stop.
• No colour in SECAM and PAL. Colour may appear slightly in SECAM when warm. (part of circuit diagram displayed)
• Vertical roll. (+ extract of circuit diagram) (703766 OTTOVERSAND repair tip)
• Picture takes a long time to appear (several mins). (picture attached)
• The power supply BUT18AF shorts after operating for 5 hours. (with circuit diagram extract)
• Dead. Error code F1 displayed.
• No picture. on lower half screen. (picture attached)
• Protection mode activated.
• Vertical lines. on the left. Excessive brightness. (+ extract of circuit diagram)
• BU508, Q7593 and Q7594 are defective. (+ extract of circuit diagram)
• The picture is indented (horizontally).
• Standby LED flashes at switch on, then switches off after a few secs, if no action is taken. If RC is pressed LED remains on, but no picture and audio. (part of circuit diagram displayed)
• Starts, but only raster. Display shows "F3". (extract of circuit diagram attached)
• No horizontal synchronisation. intermittently. (picture attached) (703766 tips)
• Black stripe on left edge of screen. Horizontal linearity is not correct. (picture attached)
• CTV functions one day. (picture attached)
• Power supply BU blows after a few days.
• No operation. (with circuit diagram extract)
• Horizontal-BU 508AF has a s/c. After replacing this fails again after a few seconds. (extract of circuit diagram attached)
• Reduced vertical deflection. intermittently. (+ extract of circuit diagram)
• Quick diagnosis (+ extract of circuit diagram) (OTTOVERSAND - 703766 information)
• No vertical deflection. Horizontal line. (with circuit diagram extract)
• TV starts, has raster but no image and no sound. Display shows "FO". (extract of circuit diagram attached)
• Defective line transistor. (picture attached)
• BUT18AF (T7625) becomes defective in standby. (picture attached) (703766 OTTOVERSAND repair tip)
• Spare part info: Value of C2546 and C2545 near line output transformer.
• Appliance works for 4 hours and then cuts out completely.
• Picture pulsates on white background.
• Set not regulating after SOPS re-build of secondary side of PSU. (with circuit diagram extract)
• Shuts down. LED is green. (part of circuit diagram displayed)
• Luminance takes a long time to appear. Distorted picture, focus pot does not react sufficiently. (with circuit diagram extract)
• Switching transistor of the SOPS power supply is defective. (picture attached) (OTTOVERSAND - 703766 information)
• No audio. F2 error.
• Distorted audio.
• No picture. intermittently. (+ extract of circuit diagram) (703766 tip from OTTOVERSAND)
• Defective BUT and fuse in the PSU. After replacing the appliance runs for several days until the fault occurs again. (extract of circuit diagram attached)
• Switches to safety mode at approx. 110 V mains voltage. (+ extract of circuit diagram)
• Power supply failure. (extract of circuit diagram attached) (OTTOVERSAND - 703766 information)
• After approx 10 minutes startup picture randomly disappears then reappears. No TEXT, only a mass of lines. (703766 OTTOVERSAND repair tip)
• Value of 3525 in the vertical amplifier situated in front of the line transformer towards tube 4 beside cushion 3521.
• Thyristor pos. 6670 fails. (with circuit diagram extract)
• Replacing the EEPROM. (part of circuit diagram displayed)
• Frame shrinks horizontally when changing brightness. (extract of circuit diagram attached)
• Only grey picture after being struck by lightning. TXT also runs. (extract of circuit diagram attached)
• Does not decode Canal Plus no the sound. Green LED flashes. (part of circuit diagram displayed)
• Loud noises from speaker. Picture OK .
• No deflection. Horizontal line.
• PSU repeatedly blows up. (extract of circuit diagram attached)
• Blows fuse. after a few hours. (extract of circuit diagram attached) (703766 OTTOVERSAND repair tip)
• Page 811 appears spontaneously. (+ extract of circuit diagram)
• Distorted picture. at top. (with circuit diagram extract)
• Flashing picture. (part of circuit diagram displayed)
• Secondary voltage cannot be adjusted lower than 160V. PSU however can be regulated with this voltage.
• No picture. Audio OK . (extract of circuit diagram attached)
• No chopper power supply. (with circuit diagram extract)
• Shuts down. after a while. (extract of circuit diagram attached)
• Blows components. at start-up. (with circuit diagram extract)
• Picture width changes according to its content. Linear distortion on right and left sides over 5cm (no ondulation).
• OSD partly disappeared from the screen in BL sets. (+ extract of circuit diagram)
• Line tearing and picture twitching at the sides of the picture.
• No synchronisation. when cold. (picture attached)
• White picture with flyback lines. (part of circuit diagram displayed)
• Very low secondary voltages. (extract of circuit diagram attached)
• Horizontal end stage BU508AF short circuits after different playing times. (+ extract of circuit diagram)
• Undefined STEREO mono switch over. OSD mono STEREO display present. (extract of circuit diagram attached)
• Appliance hums in Standby.
• No linearity. (extract of circuit diagram attached)
• No switch on. Red LED flickers for 3 seconds.
• No signal on the BUT11AF collector. (picture attached)
• Fails occasionally.
• No functions. Red LED blinks. (picture attached)
• No sound or picture. Appliance appears to be in AV. (with circuit diagram extract)
• No picture, no sound. TV starts up and tube lights up. (extract of circuit diagram attached)
• Local dooming. (picture attached)
• Error codes. (part of circuit diagram displayed)
• No colour. Coloured bars in picture. OK after a few minutes. (extract of circuit diagram attached)
• No regulation. (part of circuit diagram displayed)
• Dark streak on screen.
• Does not switch to standby. Picture remains on screen. (+ extract of circuit diagram)
• Spare part info: values of C2546, C2547 and C2545, located on collector of T7545. (with circuit diagram extract)
• Strange noise in loudspeakers. (extract of circuit diagram attached)
• Line output transistor fails repeatedly. intermittently. (+ extract of circuit diagram)
• BUT18AF fails repeatedly. (picture attached)
• Sound drops out.
• Fuse, bridge rectifier and BUT11 in PSU blow when in standby for 10 mins. (with circuit diagram extract)
• East/west raster distortion: width and shaping control do not function.
• As the set warms up the picture flashes cyan every few seconds. (picture attached)
• Chopper transistor (BUT18AF), rectifier diodes and mains fuse become defective instantly. (picture attached)
• Does not switch to standby. No functions. at switch-off. (+ extract of circuit diagram)
• Line transistor S/C.
• Picture is not linear. Black bar at bottom of picture. (part of circuit diagram displayed)
• Connection of a loop system to the TV.
• Set functions with the variac but BUT11AF blows when appliance is plugged in. (picture attached)
• No functions. No button operation. (picture attached)
• E/W fault. No E/W correction. (+ extract of circuit diagram) (703766 OTTOVERSAND repair tip)
• Poor NICAM sound from left hand speaker.
• Pulsating, no start up. (picture attached)
• Switches off during operation. When it is switched on again crackling is heard from HT. (with circuit diagram extract)
• 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)
• Line transistor 7545 fails after approx. 3 secs. (part of circuit diagram displayed) (703766 tips)
• Starts up again then clicks after a few mins. PSU faled again. (picture attached)
• Power supply BU and fuse are defective when TV started up from standby. Occurs every week or fortnight and is very variable. (extract of circuit diagram attached)
• Chopper and line output transistors S/C. (picture attached)
• White screen. Flyback lines. Shuts down. after a few seconds. (+ extract of circuit diagram)
• No audio. (part of circuit diagram displayed)
• No or poor synchronisation.
• Weak contrast. No contrast control.
• With Blackline picture tubes in the EXT1-Mode a white field is visible on the right side.
• No colour in French standard. (part of circuit diagram displayed)
• Phase fault. (picture attached) (service info for OTTOVERSAND -703766)
• No tuning. intermittently. (+ extract of circuit diagram) (703766 OTTOVERSAND repair tip)
• 5.1V incorrect. (part of circuit diagram displayed)
• Vertical deflection is defective. Picture present, after a short time a line appears then picture disappears. (picture attached)
• If mains switched off when in standby, it does not start up again. Light off. (picture attached) (703766 OTTOVERSAND repair tip)
• Severe crossover distortion in left channel.
• Excessive red.
• BUT11 becomes defective after 3 days of use. (picture attached)
• Intermittent memory problem.
• S/C on deflection circuit. (with circuit diagram extract)
• The output transistor of the power supply is defective. BUT11AF or 2SC3973B.
• Narrowing of line and frame then flashing of the picture. Screen turns dark after 10 mins. Picture ok when cold. (with circuit diagram extract)
• Arcing. Picture tearing. Does not synchronise. (with circuit diagram extract)
• Picture looks as if it were encoded (like on C+ channel). Sound is OK.
• The screen is white and there is no sound. The line transistor blows after 5 minutes. (+ extract of circuit diagram)
• Vertical linearity is upwards a little sharp. Picture has shifted upwards. (+ extract of circuit diagram)
• Picture green and purple in the E/W direction.
• Tuning unstable. (extract of circuit diagram attached)
• Wavy picture. via AV.
• Line BU blows after a moment. (+ extract of circuit diagram)
• Line end stage U/syst collapses to approx. 48V. (picture attached)
• Trapezoid picture. No E/W correction.
• 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.
• Flickering text and apparent tuning drift.
• Picture varies with beam current. (+ extract of circuit diagram)
• No sound or vision with F1 showing in the display.
• Single dark lines in picture centre.
• Insufficient picture height which can be adjusted. Poor E/W.
• Line BU keeps failing. (picture attached)
• Destruction of the power supply BU. (part of circuit diagram displayed)
• Switching transistor T7625 has failed. (picture attached)
• High voltage unit is smouldered. (extract of circuit diagram attached)
• Horizontal white line. (+ extract of circuit diagram) (703766 tips)
• 148V at approx 30V. (extract of circuit diagram attached)
• Error message F7 appears in the first 2 mins. No operation possible. (+ extract of circuit diagram)
• Replacement of TDA8451 (IC7305). (part of circuit diagram displayed) (703766 tips)
• How to check the power supply without blowing BUT18AF.
• Flash over on picture tube print.
• No tuning. when cold. (part of circuit diagram displayed) (703766 tip from OTTOVERSAND)
• No E/W.
• Goes dead when switched to standby by RC. No standby LED. Switching on and off at mains, restores normal functions (extract of circuit diagram attached)
• Low sound on channel A. (part of circuit diagram displayed)
• Intermittently line tearing in picture at the edges.
• No picture or narrow streak after warm-up. (part of circuit diagram displayed)
• Picture is too big or too small during horizontal amplitude adjustment.
• R3368 and R3369 burn up at switch on. (extract of circuit diagram attached)
• Poor width regulation with brightness. (+ extract of circuit diagram) (service info for OTTOVERSAND -703766)
• No output voltage.
• No picture, only audio via SCART. "Off air" picture displayed.. (with circuit diagram extract)
• 148V does not go pass 20V. (part of circuit diagram displayed)
• Intermittent line and raster synchro. (+ extract of circuit diagram)
• Appliance fails and later comes back unprompted. (extract of circuit diagram attached)
• Power supply is often destroyed when left in standby. (extract of circuit diagram attached)
• Green spot after viewing a white object on the screen.
• Dark picture. Picture rolls. Picture shifted to the left. Flickering picture. (picture attached)
• Poor E/W adjustment. Picture is narrow in the middle. (part of circuit diagram displayed)
• No tuning.
• No picture. Grey screen. Brightness control works normally. (part of circuit diagram displayed)
• No TXT. Intermittent green dots or lines through picture. Black screen.
• Dark screen. LED is green. (part of circuit diagram displayed) (service info for OTTOVERSAND -703766)
• BUT11A fails after operating for long time. (extract of circuit diagram attached)
• Colour blobs in the picture.
• Blows chopper transistor when switching on with remote. (with circuit diagram extract)
• Top of text is ringing. Intermittent text.
• Distorted picture. (part of circuit diagram displayed) (OTTOVERSAND - 703766 information)
• PSU varies according to picture content when warm. (picture attached)
• Adjustment black line matrix.
• Pincushion distortion at each side. Adjustment potentiometer does not correct fault. (extract of circuit diagram attached)
• Ragged verticals.
• Over oscillations below collector BUT18. (extract of circuit diagram attached) (703766 OTTOVERSAND repair tip)
• Voltage too low. (with circuit diagram extract)
• No reset.
• No switch on. Noise from loud-speakers and smell of burning. (extract of circuit diagram attached)
• Crackling from FBT and black vertical bars on screen for a few secs after start up. (picture attached)
• Slight E/W distortion. (with circuit diagram extract)
• Frayed vertical lines. (+ extract of circuit diagram) (OTTOVERSAND - 703766 information)
• Poor picture. via tuner. (with circuit diagram extract)
• Loss of red, green or blue or excessive red, green or blue pictures.
• No colours at start up 50% of the time on satellite channels. OK in HF and VCR. (part of circuit diagram displayed)
• No synchronisation. intermittently. (+ extract of circuit diagram)
• Buzzing from PSU. Motorboating noise from speakers. in standby. (part of circuit diagram displayed) (703766 OTTOVERSAND repair tip)
• Distorted vertical lines at top and bottom of monoscope. E/W correction is faulty. (with circuit diagram extract)
• Defective SOPS. (extract of circuit diagram attached) (703766 tips)
• Blows chopper transistor. (picture attached)
• Modification: Colour decoder chip IC7260.
• Picture stretched at top, compressed at bottom with black bar. Picture improves when warm. (extract of circuit diagram attached)
• Vertical foldover at bottom. (extract of circuit diagram attached)
• Dead. Red LED blinks. (with circuit diagram extract)
• When switched off with RC, does not switch on again and LED remains off. (extract of circuit diagram attached)
• No blue. (with circuit diagram extract)