725979 / OTTOVERSAND [TV]

• Poor picture alignment.
• RP51 (0R22) blows intermittently.
• Vertical line. in the centre.
• Image noise in upper channels (e.g. channel 60, 99) only. (part of circuit diagram displayed)
• Does not start up. Standby LED switches off.
• Contrast and colour are excessive at preset condition.
• No function, standby point is not visible.
• U1 is instead of 84-90V only approx. 60V. Current consumption is over 100W.
• No picture. Fusible resistor RP47 (0R22) in U2 13V-rail blows repeatedly.
• Does not start up when cold. Audio , display OK. (725979 tip from OTTOVERSAND)
• Picture appears slowly.
• No picture. Sound and display are OK.
• No special channels adjustable (channels only until 69). (+ extract of circuit diagram)
• Horizontal deflection is missing. Protective circuit disconnects. Standby point flashes.
• No R-Y/B-Y signal from Pal-decoder. Positive line pulse at pin 5 of decoder is too low.
• No tuning.
• The linearity coil whistles.
• Coloured flyback lines and poor picture.
• RC part number.
• RC part number.
• Sound and picture cut out, display for 30 secs.
• RP02 and power supply BU blow.
• Unstable lines and there is an interference line at the base of TP32.
• Part no. info: PSU repair kit.
• No R-Y/B-Y signal from PAL decoder. Positive line pulse at pin 5 of decoder too low. (+ extract of circuit diagram)
• On start up, black interference lines appear then the screen is white.
• TP32 fails at switch on. (extract of circuit diagram attached)
• No start up or reset. (725979 tips)
• Insufficient picture width, poor lines visible on screen
• TP32 and TP38 have a short circuit.
• No start up. PSU blocked.
• Standard CCETT adaptation.
• Picture is bright and white with flyback lines. (picture attached)
• No picture. Flyback lines. at top. Audio OK . (OTTOVERSAND - 725979 information)
• Vertical deflection has collapsed to a bright line in the middle of the screen.
• Picture flickers slightly from bottom to top. After removing display indication (control unit) picture is ok (less current). (extract of circuit diagram attached)
• PSU does not always start after switch on via front control or RC.
• Deprogrammes approx every 4 to 5 months.
• After changing the battery, how do you adjust the channels without remote control IR?
• Sound has shifted, nasal. Correct tuning and picture. Sound ok in scart.
• No picture. Vertical coloured lines. Raster problem.
• Black band on one part of the screen and interference.
• Dark picture.
• Faint blue picture with no picture content and flyback lines. (with circuit diagram extract)
• Tuning voltage drifts.
• Service info: work at power supply.
• RC part number.
• TL54/TP32 are destroyed.
• Picture spraying on band I (heat dependent at DP51). (+ extract of circuit diagram)
• Power supply BU S2000 (BU508AT, BU508AF) S/C.
• Sound to zero level. When volume is increased, sound goes back to zero level. Random channel switch-over.
• Vertical lines on edge in EE-mode and via AV.
• Faint hum from loudspeaker in standby.
• Vertical bar.
• No secondary voltage.
• Volume varies.
• Strong jagged edge on all channels.
• No R-Y/B-Y signal from Pal-decoder. Positive line pulse at pin 5 of decoder is too low.
• Slight hum of vertical bars.
• PSU repair tip.
• Line output stage doesn't start up.
• Very snowy picture in UHF. Apparently the fault is at the level of the tuner UHF 4200.
• U Varicap = 20V and will not change.
• No memory on any channel. Same station on every program place. (+ extract of circuit diagram)
• Top part of the picture is too wide and bottom part is too narrow
• Distorted picture. Strong streaking.
• Picture has jagged edges on every channel. (+ extract of circuit diagram) (725979 tips)
• Service info: works at power supply. (725979 OTTOVERSAND repair tip)
• Negative picture. Distorted picture. OK via SCART .
• Poor vertical and horizontal amplitude with slight waving at sides, when cold. Everything returns to normal within 5 mins. (725979 OTTOVERSAND repair tip)
• Intermittent loss of sync. Blank raster. No audio. No LEDs.
• Noisy sound in SECAM. OK in PAL.
• Switches to standby. after a while.
• Reference oscillator beat adjustment: PAL decoder.
• Adjusting Us= 108V.
• White, bright picture, picture poorly distinguishable.
• No speacial channels. Appliance works only up to channel 69. Display for brightness shows L (= English mode) instead of B.
• When warm picture lifts from the bottom and narrows at the top, black lines at the bottom of the screen.
• No picture or sound. At switch on display indicates a channel but no control is possible.
• Cannot be switched on or switched to standby. Standby indicator does not light up. (service info for OTTOVERSAND -725979)
• RC part number.
• No picture content, rainbow colours at upper edge. U4 (17,5V) is too high, voltage at thyristor anode too high (approx 30V). At pin 4 of IC03 (TEA2026C) voltage is too high, instead of (2,8V approx. 7V).
• Poor display.
• No memory on any channel. Same station on every program place. (extract of circuit diagram attached)
• RC part number.
• Picture too small. at start-up.
• Goes into standby every quarter of an hour or half an hour.
• TP29 fails after start-up.
• Switches to protection mode.
• The PSU fails instantly. When this is replaced by the repair kit the same problem arises.
• Power supply stops occasionally, approx after 1/2 hour (very irregular).
• The picture is blurred (spot at the bottom of the screen).
• TP32 (BU508) and TL37 (BU508) fail immediately after switch on. (picture attached)
• Snow, no voltage on Varicap. (725979 tip from OTTOVERSAND)
• When appliance is switched on mains BU fails immediately. (725979 tips)
• No horizontal deflection.
• The sound and picture hum.
• Power supply kit has been changed, has been working for 2 days and TP32 s/c, RP11 o/c, TL54 s/c, DL66 s/c, etc. Everything has been replaced, then no U1, U2, U3, U7, power supply transformer OK.
• Volume uncontrollable.
• Setting the PAL amplitude and the PAL phase: PAL decoder.
• The channels unkey after a while.
• No start up. can be switched on after some time in standby. Sound OK.
• Strong jagged edge on all channels. (725979 OTTOVERSAND repair tip)
• Strong ghosting on every channel. (part of circuit diagram displayed)
• Excessive vertical size.
• Poor line synchronisation. Picture is shifted up. (part of circuit diagram displayed) (725979 tip from OTTOVERSAND)
• Is it possible to fit a TEA 2026C in place of a TEA 2026T ?
• After switch on, vertical centering is shifted intermittently upwards approx. 2 cm; it goes to normal position after approx. 10 minutes.
• Tube lights up as if G2 is at max (as if blocked in video). The same if an oscilloscope is put into scart. Sound and scanning ok.
• Vertical IC blows repeatedly after a few days.
• The appliance hums and the picture is unstable.
• Vertical foldover at bottom. (service info for OTTOVERSAND -725979)
• Low audio.
• Line BU (BU508) becomes hot and blows. At base of BU there are double pulses.
• The picture blows up and the bottom of the screen is bright.
• S/C in PSU. (+ extract of circuit diagram)
• Vertical lines at edge during EE operation and via AV. (part of circuit diagram displayed)
• No system adjustment.
• No U system.
• Picture appears slowly. Display OK .
• RC part number.
• No storage on all channels. The same channel on all program sites.
• Noise on channel 09 (band I) - colour picture. (picture attached)
• Phase comparator fault on TV. Ok on secondary.
• Poor contacts. (service info for OTTOVERSAND -725979)
• Channel search does not stop. Appliance goes to sleep timer and switches off.
• No picture. after a few minutes. Audio OK .
• No picture. Check the signal on pin 10 of IT20.
• No command signal on the IL03.
• No colour (intermittently). Line tearing. (725979 tips)
• PSU is defective, after replacing the protection resistor RP11 and transistor TP32 (BU508) there is still a s/c ie. after switching on appliance there is another complete s/c of the BU 508A straight away.
• PSU inoperative.
• Intermittent loss of synchronization.
• Tripping. (725979 OTTOVERSAND repair tip)
• The appliance goes to safety mode and mute.
• Vertical amplitude is too low.
• Cannot be switched on or switched to standby. Standby indicator does not light up. (725979 tips)
• When switching on BU508A and RP11 fail after 2 secs.
• No reception on band I, or only picture flickering. (service info for OTTOVERSAND -725979)
• No UHF channels.
• Reluctant to start then produces a picture with reduced width.
• The line framing is incorrect.
• No R-Y/B-Y signal from the Pal decoder. The positive line pulse at pin 5 of the decoder is too low. (with circuit diagram extract)
• Vertical lines are distorted horizontally. E/W equalizer can not be adjusted correctly.
• Bright picture. at top and bottom.
• Sound purrs when tuning, picture is correct. Sound is possibly correct but picture disappears.
• Vertical size adjustment.
• Too much contrast, cannot be adjusted to less. (picture attached)
• Power supply defective.
• The varicap voltage does not move.
• Secondary protective circuit TV01 and TV02 disconnects intermittently.
• Switches to standby (intermittently).
• Wide dark stripes on left side of picture.
• Adjusting the band filter (with UHF IF filter).
• No sensitivity in the tuning.
• Appliance goes into PAL. Occasionally no display.
• IR receiver does not function.
• After switching on the mains progamme indication in the display but no picture and no sound. (picture attached)
• TL19 fails in line ouptut stage.
• Focus adjustment.
• Noisy sound or no sound at all.
• Secondary protective circuits TV01 and TV02 disconnect intermittently.
• No image, red raster and flyback lines visible. (extract of circuit diagram attached) (OTTOVERSAND - 725979 information)
• Poor vertical synchronisation. Picture shifted vertically. at top. (part of circuit diagram displayed)
• RC part number.
• Start up ok. Picture and sound ok. After 15 minutes or more than one hour no picture but son ok. Horizontal white line.
• Channels from 21 to 32 come through well but with lines and nothing comes through from 41 to 53.
• PSU fails immediately after switch on.
• No brightness on picture. Chroma present with vertical instability and no sound.
• Sound fizzles.
• Adjusting the screen grid voltage: picture tube board.
• Power supply, fuses, BUs, etc, blow each time appliance is switched off by ON/OFF switch.
• Low hum of vertical lines. (+ extract of circuit diagram) (725979 OTTOVERSAND repair tip)
• No picture, no sound and programme display does not light up.
• The luminance signal disappears occasionally.
• Loud audio.
• Picture hum and picture is slightly brighter at the top and bottom. (picture attached)
• FBT ok at start up but dark screen except for 3 coloured lines in top third of screen. Sound and display of channels ok.
• Poor reception. in VHF.
• Picture is pulled at the top. Poor line sync. (picture attached)
• Picture is dark or partially ther.
• No vertical deflection.
• R82 (10R) on the tube base board fails.
• Part no. info: PSU repair kit.
• Picture predominantly red in SECAM. Ok in PAL via scart.
• Adjusting the grey value: picture tube board. (service info for OTTOVERSAND -725979)
• No vertical synchronisation.
• Adjustment of 5.5MHz min. or 4.43MHz min.
• Displays PR and does not start
• Crackling in sound and picture in UHF and VHF. No sound via scart.
• Does not come on from standby, red standby light comes on. TV01 and TV02 in the protective circuit respond.
• Picture width fault.
• Both vertical and horizontal synchronization instability.
• Image compressed horizontally. Insufficient width approx 1cm on left and right of screen.
• Setting the vertical amplitude.
• Strong jagged edges on all channels.
• No reception. via tuner.
• Service info: operations at power supply. (725979 OTTOVERSAND repair tip)
• PSU fails after start-up.
• No high channels can be requested.
• Only switches on occasionally, but without picture and sound. Occasionally very high switch on current consumption.
• No start-up. (picture attached)
• Standby indicator flashes.
• Voltages from FBT gradually decrease then line BU S2000 blows after operating for 15 mins.
• No adjustment.
• No vertical deflection. intermittently. No audio. intermittently.
• Switches off intermittently or does not switch on at all.
• No channel search.
• Sometimes switches over by itself.
• RP11 blows.
• Picture flickers and stripes in the picture.
• Service info: operations at power supply.
• Screen blank. Dark picture.
• PSU does not start up with a mains voltage more than 200V, ok with a voltage less than or equal to 200V.
• Loud noise, if appliance is switched to standby.
• No R-Y/B-Y signal from PAL decoder. Positive line pulse at pin 5 of decoder too low. (+ extract of circuit diagram)
• There are 1300V present instead of 900V peak to peak on the collector of the TL37 (BU508ATB). This breaks after some time.
• Does not memorise channel tuning. Display shows channel when TV tunes onto a programme. 'Ch' appears on display when pressing 'S' and channel number reappears.
• No picture. No audio. No channel display.
• RP02 burns at switch on and destroys TP32 S2000A1.
• Reduced horizontal size. (picture attached)
• Programmes memory is lost once a month.
• No functions. Standby LED is not visible. (725979 tip from OTTOVERSAND)
• No scanning. Display ok.
• No start-up from standby with RC.
• Main voltage adjustment.
• No colour. No shutdown with RC.
• Only switches on after 70 secs. After start up everything is ok. (service info for OTTOVERSAND -725979)
• No RC functions.
• Dark screen.
• Unstable luminance when the appliance is warm.
• Intermittent loss of sync, a blank raster, no sound, switching to standby and the LED channel display going off.
• Line stage does not start up.
• Picture is dark. When Ug2 is completely there, a bit of the picture is present.
• TP32 in the PSU is s/c.
• No start-up (intermittently). (with circuit diagram extract) (725979 tip from OTTOVERSAND)
• When switching into standby mode from the remote control the appliance switches off the sound and colour. This effect also occurs with a Condor appliance.
• TP29 fails after switch on.
• Searches for channels continuously.
• Focus pot is defective.
• Standby LED flashes.
• No videotext mode.
• Very poor sound via HF but very good when going through scart.
• Contrast and brightness cannot be adjusted properly. (+ extract of circuit diagram) (OTTOVERSAND - 725979 information)
• Contrast average value is too high.
• Line oscillating or tearing.
• Dark screen. on the left.
• Part no. info: PSU repair kit. (725979 tip from OTTOVERSAND)
• Sound fizzles.
• Service info: works at power supply.
• DP51 heats up.
• Approx one third of the top of the picture is crushed.
• Line stage does not start up.
• Excessive green.
• The power supply does not start up. No standby
• No picture, no sound - PSU is switched off.
• TP32 heats up.
• When cold, no sound and no line amplitude then finally starts up.
• No start up. PSU whistles even when secondary side disconnected.
• Lacks horizontal amplitude. Regulation does not function.
• Purity spot and scanning are incorrect.
• Snow in picture. in UHF.
• No colour.
• Blank screen.
• RP61 burns out.
• Mains switch no start up. (part of circuit diagram displayed)
• Part no. info: PSU repair kit.
• No horizontal deflection. intermittently.
• No functions. (picture attached)
• Interference lines in the top part of the screen.
• Horizontal stripe (intermittently).
• Loud noise, if appliance is switched to standby.
• Spare part no. info: Power supply repair kit.
• TP32 (BU508) becomes defective after appliance turned ON/OFF several times. (extract of circuit diagram attached)
• Part no. info: PSU repair kit.
• RL41 O/C due to dry joints below connector BD01.
• No picture in UHF, voltage for band change and tuning is OK.
• When warm flickers between picture and TXT. Characters keep popping up on screen
• No display. TV functions well. Channel change over ok.
• Standby light flashes, fuse blows. RP11 and TP32, BU508 fails.
• Systematic failure of TL54. At switch on TEA2026 has been changed.
• Flyback lines. No brightness. No contrast.
• No storage on all channels. The same program on all program sites. (725979 OTTOVERSAND repair tip)
• Can not be switched on from standby via RC.
• Sound is always at max even if appliance displays volume with 00.
• High channels cannot be stored. Search functions only from 2 up to 68.
• Switches over by itself to "Secam L".
• Channel storage is erased.
• No colour in PAL and SECAM.
• Switched-mode power supply (SMPS) does not start up. (with circuit diagram extract)
• No search possible. TV switches off without the 10th, 20th and 30th channel.
• Shade appears behind the picture.
• The appliance pulsates 3 times then goes to safety mode.
• The blue circuit is pale.
• Channels below 30 cannot be received (chassis ICC4).
• Picture drop out and development of smoke. A "rainbow" is visible in the picture.
• Display appears after 15 secs, then pulsates on and off (no breaker circuit). (picture attached)
• The colour appears after a few minutes.
• No brightness. Three RGB colour bands on left and right of the screen.
• RC part number.
• Replacement kit of thyristor ESM740/G1/G2.
• Appliance does not function with the mains switch then starts up again with another button.
• No storage on all channels. The same channel on all program sites.
• Adjusting the vertical and horizontal centering. (725979 tips)
• Rainbow effect in the centre.
• Screen blank, only RF-noise. No 0,5-30V tuning voltage at RT11. The three band switch transistors are conductive. Error may also occur only sometimes.
• Service info: operation at power supply.
• No TXT.
• Dark picture. after a few minutes.
• Fuse blows constantly.
• Reference oscillator (4.43MHz) adjustment - PAL decoder.
• No colour.Flag-effect.
• Transistor BU508 fails repeatedly.
• DP51 s/c after operating for half an hour. (725979 OTTOVERSAND repair tip)
• 90V problem. RP51 heats up and cuts out. DP51 and CP51 ok. Brand new line transformer.
• No light and the appliance cuts out.
• No transmission in UHF (12V on pin 10 of the tuner connector).
• No brightness (only outlines can be recognised). Colour is ok.
• Vertical line.
• Power supply fails at less than 100V.
• TL19 fails in line output stage.
• Starts up after 3 mins.
• Adjusting the screen grid voltage (grey setting).
• The power supply does not start up. All transistors have been changed. (725979 OTTOVERSAND repair tip)
• The power supply does not function with load.
• No video or scanning. Channels are displayed.
• Storing channels.
• Picture shifted vertically.
• Fails frequently when operating.
• Line instability.
• No erasing possible.
• Black picture with 10cm of RGB horizontal lines over the whole screen.
• The display is incorrect and PE appears.
• Switches to standby after 6 or 7 minutes with or without aerial signal.
• E/W fault.
• U7 = 15V and there is no 12V voltage. A black band appears on the screen. (service info for OTTOVERSAND -725979)
• Reduced vertical size.
• No start function via RC. With mains switch appliance switches into standby. (with circuit diagram extract)
• Dead.
• The picture shifts towards the bottom of the screen.
• TEA 2026C is defective.
• No 90V, RP51 burns. BU807, BU508.
• The fuse blows because RP02 heats up. (725979 OTTOVERSAND repair tip)
• Horizontal centre adjustment.
• No colour, picture streaking.
• No storing on all channels. Same stations on all channel sites. (extract of circuit diagram attached)
• BU807 blows regularly. FBT and TEA2026 have been changed.
• Power supply fuse blows. When it has been replaced, TV functions again for several days.
• Red is too pale. Pot PV50 does not react.
• Does not switch on. No standby. (725979 tips)
• Poor startup.
• On channels from 21 to 27 picture is ok, from 32 to 35 lines on picture and from 41 to 47 no picture.
• Content of PSU repair kit.
• Saving the analog values.
• Poor vertical synchronisation. (725979 tips)
• Excessive brightness.
• U1 = 60V instead of 90V. (725979 tip from OTTOVERSAND)
• BU807 (TL54) cuts out.
• Switches to standby. after a few minutes.
• Spots of colour on the screen.
• Switches to protection mode. after start-up. (part of circuit diagram displayed)
• The appliance blows up on a very light background.
• Vertical centre adjustment.
• No horizontal or vertical deflection.
• Coloured tinge in picture.
• Loud noise, if appliance is switched to standby.
• RP23 and transistor (BU508A) have blown.
• Part no. info: PSU repair kit.
• The picture is delayed by a few minutes.
• The power supply is destroyed.
• The appliance crackles during low Gamme UHF.
• Ghosting effect.
• Muted audio.
• IL03 (TEA2026) blows up when the appliance goes into AV on TV 42cm.
• Power supply fault. TP37 and TP32 have a short circuit and occasionally TP38.
• TP01 (BUT12A) fails after longer operating time
• General information.
• Sound fizzles.
• No picture. No sound. Programs can also be switched over.
• Power supply breakdown due to a volt-rise of the power supply kit.
• Dark screen, 5 or 6 coloured lines at the top of the screen. Picture returns if appliance is hit.
• No switch on. Standby indicator lights up.
• No start-up. Display OK . (725979 tips)
• Adjusting the white setting.
• Horizontal collapse.
• Crackling in sound and picture in UHF and VHF. No sound in scart.
• Value of the resistor of the chopper power supply transistor emitter.
• No luminance.
• The appliance takes 2-3 minutes to start up.
• S2000 is s/c. Replaced with the original repair set, it still fails. (part of circuit diagram displayed)
• Slow start-up.
• No reception at band I, or image flickering only. (extract of circuit diagram attached)
• Station tuning disappears.
• No audio.
• Starts to pulsates. Sound, picture and display present.
• Loud echo on all channels. (+ extract of circuit diagram)
• No colour.
• Part no. info: PSU repair kit.
• No picture on channel 99.
• No start-up. No display.
• Strong jagged edges on all channels.
• Black screen. Display is lit. Intermittent sound. Fault occurs both via aerial and SCART.
• PAL run time decoder adjustment - PAL decoder.
• Stations appear and disappear. Horizontal lines in picture.
• Channel search does not stop. Appliance switches to standby and switches off.
• Channel search does not stop. Appliance goes to slumber switching and switches off.
• Loss of sync/raster/sound. Display goes off.
• The 108V voltage varies (U-system).
• After a few days the TV fails. RP11, TP32 and TP38 are defective. The 925TX1283 unit has been replaced: TP32, TP38, CV16, DP33, DP41, DL62, DL64, QL11, CP31, DP32, DP38.
• Station search does not stop. Appliance goes to sleep mode and turns off. (extract of circuit diagram attached) (725979 tip from OTTOVERSAND)
• TL54 (BU807) becomes very hot after a few mins and blows. Normal picture.
• No R-Y/B-Y signal from Pal-decoder. Positive line pulse at pin 5 of decoder is too low.
• In normal charge, TP32 and TP38 switch off. The appliance functions without a charge.
• Standby flickers.
• Channel search does not stop. Appliance switches to standby, then turns off.
• Part no. info: PSU repair kit.
• No 300V at collector of TP32. If collector is disconnected 300V appear.
• Vertical blue bar on centre of screen. No picture. (725979 tips)
• Vertical collapse (intermittently).
• At start up 90V makes 12V. After 2 mins picture and sound present but 90V reaches a maximum at 85V.
• Fuse blows at random, even at switch off.
• Service info: operations at power supply. (725979 tips)
• Hesitant start up. Mains button must be pressed several times. If appliance runs, fails again most of the time after a few mins.
• No function display. CTV functions via the front panel and the RCU.
• Adjusting the band filter (with VHF IF filter).
• No storage on all channels. Same channel on all program sites.
• Black band at bottom of screen over approx 8cm. Picture has shifted to the top.
• At switch on when cold picture is reduced in height and width of the screen. After heating up for some time scanning becomes normal. Fault is no longer visible. You must wait until TV has cooled down sufficiently.
• Station search does not stop. Appliance switches to standby and turns itself off. (with circuit diagram extract) (service info for OTTOVERSAND -725979)
• Setting 5.5MHz min.
• Unlinear V. Bright stripe 3cm from top of the screen.
• Fuse blows as soon as degaussing is connected.
• Switches to protection mode. intermittently.
• 300V on the collector of TP32. Oscillates at its base but no voltage on the secondary.
• No display. Appliance starts.
• Part no. info: PSU repair kit.
• Normal in black and white. In chroma, red of picture is green, blue is red and green is blue.
• No image content, only HF noise. (extract of circuit diagram attached)
• Station search does not stop. Appliance switches to standby and then turns itself off. (with circuit diagram extract)
• Vertical picture position shifts intermittently upwards approx 2 cm after switch on. It is OK after approx 10 mins.
• High contrast.
• Horizontal deflection and line oscillator failed. (extract of circuit diagram attached)
• Power supply fault.
• The power supply is correct without a load (U1 is up). There is a complete stop in the load.
• At start up no line scanning or raster, TV displays PR. After approx 30 mins TV starts up.
• Display ok, 90V, 13V and 22V are ok. Output 10 of TEA2026 to the line driver and the wave peaks are not in the correct frequency. IC and quartz have been changed.
• Does not start up. Only displays the channel number. Power supply kit has been replaced.
• The appliance crackles and the picture framing is incorrect.
• The appliance switches off for a short time and back on again. (with circuit diagram extract)
• No R-Y/B-Y signal from Pal-decoder. Positive line pulse at pin 5 of decoder is too low.