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EURAS System

702548 / OTTOVERSAND [TV]

The EURAS repair tip database for professional technicians and service engineers supplies the following faults for 702548 / OTTOVERSAND.

List of fault symptoms:
  • S2 adjustment T208 5.74MHz.
  • Vertical symmetry adjustment.
  • In stand by low twittering/noise can be heard on the right channel. Occasionally appliance does not start up from stand by.
  • +B 150V adjustment R716.
  • Flyback lines. at top. (extract of circuit diagram attached)
  • Service info: Adjustment of the green gain.
  • Drive red adjustment.
  • Service info: Adjustment of trapezium 1.
  • AFT T205 adjustment.
  • Service info: G2 adjustment.
  • VCO adjustment for picture.
  • Chroma luminance distortion delay.
  • RF AGC adjustment.
  • Service info: Adjustment of AFT T205.
  • VCO T204 for picture. (702548 tips)
  • Cut-off green adjustment.
  • Switches to protection mode. (702548 OTTOVERSAND repair tip)
  • Horizontal blanking phase shift - Service mode.
  • Occasionally remains on standby. No switch on with RC. Appliance operates after mains plug has been pulled out for a short time. (extract of circuit diagram attached)
  • Drive red.
  • Venetian blind effect, picture is hardly recognisable. Sound OK. Error occurs either via aerial and via scart.
  • Service info: G2 adjustment.
  • VCO adjustment. (702548 OTTOVERSAND repair tip)
  • Hum in standby. (702548 tip from OTTOVERSAND)
  • G-2 adjustment
  • Vertical size.
  • Trapezoid 1 adjustment.
  • Audio adjustment T208 5.74MHz.
  • Picture geometry changes continuously, no picture content visible, lines visible, no synchronisation, at switch on/off fault symptoms change continuously. (part of circuit diagram displayed)
  • Vertical symmetry.
  • No picture and no sound. The PSU does not start up. (extract of circuit diagram attached) (702548 tip from OTTOVERSAND)
  • When aerial connected appliance is locked onto one channel, manual and RCU controls do not function (RCU ok if aerial partially removed).
  • Red poor when warm.
  • Does not switch to standby. intermittently. (OTTOVERSAND - 702548 information)
  • Poor or no start-up. Red LED lights, green LED lights up and then goes out. After 10-20 start-up attempts, switches on with E/W-error and functions for 10 mins. Mains transformer buzzes. (service info for OTTOVERSAND -702548)
  • Cut-off blue.
  • Trapezoid 2 adjustment.
  • No channels. only snow. (702548 tips)
  • Only bright white picture. Sound, TXT and OSD OK.
  • No picture. No sound. Operating LED switches at start up, but stays red, not green.
  • RF AGC R219 adjustment. (702548 OTTOVERSAND repair tip)
  • Service info: Adjustment of the VCO.
  • Adjusting the HF automatic gain control.
  • Sound level (R231) adjustment.
  • No functions.
  • Line on left edge of picture.
  • White screen and normal sound with aerial. Without aerial snow in the picture. (with circuit diagram extract) (service info for OTTOVERSAND -702548)
  • Service info: Adjustment of the blue section. (OTTOVERSAND - 702548 information)
  • Service info: adjustment of the vertical phase.
  • Blue gain.
  • S-level adjustment R231.
  • VCO for picture.
  • No picture. No sound. Functions only after several restarts.
  • Hum in standby.
  • No start-up from standby. (extract of circuit diagram attached)
  • Service info: Adjustment of RF AGC R219.
  • Service info: adjustment of noise suppressors T201, T200.
  • No colour coverage.
  • Cut-off green.
  • VCO T204 for the picture.
  • Service info: Adjustment of the red section.
  • G2 adjustment.
  • Excessive horizontal size.
  • AFT (T205) fine adjustment.
  • How to activate SERVICE menu.
  • Test line in top third of picture.
  • Chroma-luma delay adjustment.
  • Horizontal amplitude adjustment (except 21" model).
  • Service info: Adjustment of the blue gain.
  • Video signal fault.
  • Slow start-up.
  • Mostly black screen with intermittent vertical bars. Picture sometimes goes completely blue. Sound is ok intermittently.
  • Poor picture. Distorted picture. (extract of circuit diagram attached)
  • No sound. No picture. Standby ok.
  • Changing the horizontal blanking phase.
  • No audio.
  • +B 150V adjustment.
  • Blue locking point.
  • East/West 1 adjustment
  • East/West 1 adjustment.
  • Level adjustment of the sound.
  • AFT T205 adjustment.
  • Trap adjustment. (OTTOVERSAND - 702548 information)
  • Picture is too bright. G2 cannot be adjusted.
  • Speakers click. Worse when warm.
  • Cut-off red adjustment.
  • One channel crackles softly (fine in mute and without antenna). Very audible in minimum volume.
  • Grey picture, diagonal stripes and torn edges. (picture attached) (702548 OTTOVERSAND repair tip)
  • Vertical symmetry adjustment.
  • Service info: Adjustment of the vertical size.
  • Adjusting the VCO for the picture.
  • Service info: Adjustment of the vertical symmetry.
  • Q701 S/C.
  • No program switch over or volume change from front control. Only programmed stations can be selected from front control. (702548 OTTOVERSAND repair tip)
  • Service info: adjustment of the horizontal blanking phase.
  • AFT adjust T205.
  • Service info: Trapezium adjustment 1.
  • AFT T205 adjustment.
  • When switching to teletext the picture becomes completely black.
  • Drive green adjustment.
  • No audio.
  • Line tearing. in the centre.
  • East/west 2 adjustment (except 21" model)
  • White picture or no raster.
  • Picture has horizontally shifted and has colour error.
  • No colour.
  • Service info: Adjustment of the horizontal blanking phase.
  • S detector T206 5.5MHz for sound.
  • White splutters in the picture. (+ extract of circuit diagram) (OTTOVERSAND - 702548 information)
  • Horizontal phase shift adjustment.
  • Chroma-luma delay adjustment.
  • Switches regularly over to stereo and afterwards back to mono. (service info for OTTOVERSAND -702548)
  • Horizontal size adjustment.
  • Setting fault-clearer. (with circuit diagram extract)
  • Appliance has Teletext faults when receiving via a satellite system. (extract of circuit diagram attached)
  • No synchronisation. Audio OK .
  • Red blocking point.
  • Adjusting the horizontal amplitude
  • Detector T206 5.5 MHz for the sound.
  • Cut-off blue adjustment.
  • Picture shifted horizontally. Colour fault.
  • 150V cannot be adjusted.
  • RF AGC adjustment.
  • Service info: Adjustment of the red gain.
  • Chroma and luminance signal are mixed.
  • Appliance has no proper colour; looks like a demagnetising fault.
  • No OSD. No TXT.
  • Drive red adjustment.
  • Q701 fails again.
  • Chroma/luma delay adjustment. (OTTOVERSAND - 702548 information)
  • Sound level adjustment.
  • +B adjustment.
  • Service info: Adjustment of the chrominance/luminance delay.
  • S-correction adjustment.
  • Arcing.
  • Colour is displaced.
  • Chroma luma distortion delay.
  • Horizontal phase shift adjustment - Service mode.
  • Dark picture.
  • +B 150V (R716) adjustment.
  • Service info: Adjustment of audio T208 5.74MHz.
  • Service info: G2 adjustment.
  • Dim picture.
  • Service info: E/W- and trapezium corrections.
  • Horizontale amplitude.
  • Bright picture. Flyback lines.
  • VCO adjustment.
  • Audio adjustment T208 5.74 MHz.
  • Service info: Adjusting the VCO.
  • Switches to standby. after start-up.
  • Service info: Adjustment of the green section.
  • Sound can not be set to Low. If volume is increased sound disappears.
  • No picture, high voltage is present, vertical deflection is present. Cut off voltage is only 1.3V.
  • Instructions on how to activate SERVICE mode.
  • Trapezoid 1 adjustment.
  • Adjusting the horizontal amplitude.
  • Vertical size adjustment.
  • Cut-off red adjustment.
  • No start-up.
  • Shading in picture.
  • VCO T204 for the picture. f
  • Horizontal blanking phase shift adjustment.
  • No sound, only digital sound is audible.
  • No raster.
  • Blue drive adjustment. (702548 tip from OTTOVERSAND)
  • Service info: Adjustment of audio level R231.
  • Switches to standby. when cold. (picture attached)
  • Stuck in standby. intermittently. LED blinks orange . (702548 tips)
  • Service info: Audio adjustment T208 5.74MHz.
  • Horizontal phase shift adjustment.
  • No picture only bright even white screen. Teletext and sound ok.
  • Service info: Adjustment of the green gain.
  • G2 adjustment. (service info for OTTOVERSAND -702548)
  • Drive blue adjustment.
  • Only the standby-led burns. No start up, also no reaction with the remote.
  • Cut-off green adjustment.
  • Vertical wavy lines at the top edge when cold (station logo is severely distorted). Picture (nearly) normal after a short time.
  • Service info: Adjustment of VCO T204 for the picture.
  • Excessive horizontal size. Pincushion distortion.
  • S2 5.74MHz adjustment.
  • Luminance and colour have shifted with respect to each other. (+ extract of circuit diagram) (service info for OTTOVERSAND -702548)
  • Sound is very loud in minimum position and disappears after cursor is past middle adjustment. Between minimum and middle position, sound increase in volume. (702548 tip from OTTOVERSAND)
  • Service info: adjustment of the vertical size.
  • S-level adjustment.
  • Switches off by itself. in standby.
  • Poor picture (green and bright). (with circuit diagram extract)
  • S-correction adjustment.
  • No picture.
  • Coloured lines. at top.
  • HF AGC R219.
  • Service info: Ost/West 2 Adjustment.
  • G2 adjustment. (702548 tip from OTTOVERSAND)
  • PSU pulsates. Stuck in standby. (with circuit diagram extract)
  • East/West 1 adjustment.
  • Hum in standby.
  • Cut-off red adjustment.
  • Blank raster.
  • Service info: adjustment of noise suppressors T201, T200.
  • Brightness increases and the picture becomes hazy. (part of circuit diagram displayed)
  • No sound muting when switching over. No indication on the display eg. volume or Teletext. (part of circuit diagram displayed)
  • S-correction adjustment.
  • Red drive adjustment.
  • Trap T201 and T200 adjustment.
  • Low audio. (OTTOVERSAND - 702548 information)
  • Enter service mode.
  • Service info: adjustment of the vertical phase.
  • Service info: Adjustment of the horizontal amplitude.
  • Parts of text lines disappear when using subtitles.
  • S-correction.
  • Cut-off blue adjustment.
  • Trap T201 and T200 adjustment. (702548 OTTOVERSAND repair tip)
  • Service info: Adjustment of detector T206 5.5MHz for the sound.
  • Service info: E/W 2 adjustment.
  • No sound. Buzzing.
  • Tripping. (+ extract of circuit diagram)
  • Green LED lights up briefly at start up, then LED goes off and PSU pulsates. (702548 tip from OTTOVERSAND)
  • Service info: AFT adjustment T205.
  • Slow start-up. when cold.
  • Trapezoid picture. at top.
  • No picture and sound. Power LED green, then red again.
  • One colour missing.
  • Only digital noise. Volume cannot be controlled.
  • Switches to standby. after a few seconds.
  • Service info: Adjustment of the vertical phase.
  • Tuning menú does not appear. No TXT. No OSD.
  • Chroma-luma delay adjustment.
  • Vertical size.
  • S-Correction adjustment.
  • No red.
  • Picture colour has shifted 1 cm.
  • Fine tuning adjustment. (part of circuit diagram displayed)
  • Bright white picture, very faint and speckled in appearance. Only red and blue flecks in test picture.
  • Colour flickers and fades out.
  • S2 T208 5.74MHz adjustment.
  • Colour is not in order. No drive from the digital board.
  • Flyback lines. (extract of circuit diagram attached)
  • Service info: RF AGC adjustment R219.
  • No start-up. Standby and power LED simultaneously lit.
  • Service info: E/W- and trapezoid corrections.
  • Trapezoid 1 adjustment (except 21" model).
  • Service info: Adjustment of the S correction.
  • Green locking point. (702548 tips)
  • RF AGC R219 adjustment.
  • Trapezoid 2 adjustment.
  • Switches to standby. after a while.
  • Lines in picture. at top.
  • Cut-off blue adjustment.
  • Line end stage does not run (702548 tips)
  • Service info: Adjustment of audio level R231.
  • Shuts down. after start-up.
  • Vertical size adjustment - Service mode.
  • Speakers click.
  • Cut-off red.
  • AFT adjustment T205.
  • Vertical lines. Vertical foldover at top and bottom.
  • Sychronous fault, on the right blanking interval.
  • Service info: Adjustment of the vertical size.
  • Green gain.
  • Service info: VCO adjustment T204 for the picture.
  • Horizontal size adjustment.
  • Clicking noise.
  • Vertical symmetry adjustment.
  • Grey and white picture. No sync or TXT activity.
  • No sound. Sound OK via SCART connection. (extract of circuit diagram attached)
  • No picture. when cold. Vertical fault. after warm-up.
  • Phase shift. Does not go into chroma.
  • Red gain.
  • S detector 5.5MHz for sound.
  • S detector T206 5.5 MHz for sound adjustment.
  • Does not switch on. PSU works in Burst mode. (service info for OTTOVERSAND -702548)
  • Black and white picture is displaced towards the colour approx 5cm to the right.
  • No start-up (intermittently).
  • White screen. Audio and OSD OK .
  • Line tearing. at top.
  • No audio muting at switch over. No indication in the display eg. volume or Teletext. (with circuit diagram extract)
  • Poor and distorted picture, colour phase is not good. (picture attached) (702548 tips)
  • Adjustment +B 150 V R716.
  • Adjusting +B.
  • Trapezoid 1 adjustment.
  • Vertical symmetry. (702548 tips)
  • Dark picture at start-up from standby. Picture appears if appliance is switched off via mains.
  • Service info: Trapezium 2 adjustment.
  • Fault in the power supply: transistor Q701 is defective again immediately after switch on. (with circuit diagram extract)
  • VCO adjustment.
  • Dead. (extract of circuit diagram attached)
  • Picture hardly visible, it appears with coloured dots on white screen.
  • AFT Adjustment - Fine Adjustment.
  • Coloured flyback lines at top.
  • East/West adjustment 2.
  • Unadjustable sound and stays on max. If the level indicator line at the bottom of the picture is at the half-way point, the sound disappears right up to the end.
  • Service info: adjustment of the horizontal blanking phase.
  • Occasionally a horizontal line visible for a short time. Then switches immediately to standby.
  • SERVICE mode adjustment. (extract of circuit diagram attached)
  • Whitewash effect. No sync and TXT.
  • Intermittently spots in picture or picture too wide.
  • Drive blue adjustment.
  • Service info: Adjustment of the chrominance/luminance delay.
  • Voltage control oscillator T204 for picture adjustment.
  • Trouble shooting for T201, T200.
  • Stuck in standby. Power LED lit .
  • Horizontal stripes. at top.
  • No signal. via SCART. (extract of circuit diagram attached)
  • AFT adjustment - Coarse Adjustment. (OTTOVERSAND - 702548 information)
  • S detector 5.5MHz for sound adjustment. (702548 tips)
  • Dead. after start-up. Standby LED lit .
  • Trouble shooter T201,T200.
  • Vertical fails (line) when changing channels or with especially large jumps in brightness.
  • No picture and no sound. If appliance is switched off and on again, it functions faultlessly. (OTTOVERSAND - 702548 information)
  • Service info: Adjustment of audio T208 5.74MHz.
  • Trapezoid 2 adjustment - Except 21" model.
  • Horizontal blanking phase shift adjustment.
  • RF AGC R219.
  • Sound is too loud with min. volume.
  • Dark blank raster.
  • Certain stations cannot be reprogrammed.
  • Service info: Adjustment of the blue gain.
  • AFT fine adjustment.
  • Power supply IC 701.
  • Tripping (intermittently). (part of circuit diagram displayed)
  • Service info: Audio level adjustment R231.
  • Service info: Adjustment of the green gain.
  • Level adjustment audio R231.
  • Drive green adjustment.
  • Horizontal amplitude adjustment - Service mode.
  • Service info: Adjustment of the horizontal amplitude.
  • Service info: Adjustment of chrominance/luminance delay.
  • AFT coarse adjustment.
  • Service info: Adjustment of the blue gain.
  • Incorrect start-up. Screen flickers, cannot be controlled. (702548 tips)
  • Horizontal phase shift adjustment.
  • VCO T20 for picture adjustment.
  • Service info: East/West 1 adjustment. (702548 OTTOVERSAND repair tip)
  • Lines at top of picture. Light or blue picture or no sync or sound too quiet and control cannot be adjusted to quiet after switch on
  • Trapezoid 2 adjustment.
  • TV switches to teletext when switched on and after awhile jumps back to regular picture. TXT is fine.
  • Adjusting +B 150V R716.
  • No vertical deflection.
  • No yellow in the S-VHS function. (+ extract of circuit diagram)
  • Power switch has to be switched 6-10 times when cold until appliance starts.
  • Fault via the S-VHS socket. (with circuit diagram extract)
  • Line output transistor fails repeatedly.
  • S correction.
  • Colour is displaced. No memory.
  • Adjusting the sound (5,74MHz).
  • Squealing from PSU. (702548 OTTOVERSAND repair tip)
  • Service info: Adjustment of trapezium 1.
  • S2 adjustment T208 5.74MHz.
  • Vertical size adjustment.
  • Service info: Adjustment of detector T206 5.5MHz for the sound.
  • Disable the protective circuit.
  • Picture is bright. TXT bright on bright background. Video signal only dimly distinguishable.
  • Dead. Standby LED lit .
  • Drive green.
  • Poor start-up (needs approx 3-4 attempts).
  • Multicoloured snow horizontally in the top third and vertically in the right third. Changes depending on picture content.
  • East/west 1 adjustment (except 21" model).
  • Cut-off green adjustment.
  • Horizontal line.
  • No E/W correction.
  • Power supply hiccups. Does not leave standby.
  • Horizontal size adjustment.
  • Service info: AFT adjustment T205.
  • Service info: Adjustments of the red section.
  • Black screen. Horizontal line.
  • Service info: E/W 1 adjustment.
  • Can be programmed, but only bright picture. Sound available for a short time by synchronisation. Picture available for a short time via scart. TXT OK.
  • Poor linearity.
  • Service info: East/West 1 adjustment.
  • Service info: Adjustment of the horizontal amplitude.
  • Service info: Adjustment of the VCO.
  • Vertical collapse. (with circuit diagram extract)
  • Does not start intermittently, squeaks (hiccups) when starting from standby mode. (with circuit diagram extract)
  • Changing the horizontal blanking phase.
  • RF AGC R219 adjustment.
  • Service info: adjustment of the S correction.
  • E/W fault.
  • VCO adjustment.
  • Does not start or starts with incorrect values for vertical and horizontal deflection.
  • Horizontal phase shift adjustment.
  • No audio. No picture. (with circuit diagram extract)
  • Service info: Adjustment +B 150V R716.
  • Dead. Clicks 10 times, short pause, then clicks again without interruption.
  • Dark picture. Poor picture. Retrace lines.
  • Service info: Adjustment of the red section.
  • No sound. 1 channel makes loud noise, also in low volume. No stereo indication. Sound present on scart.
  • VCO adjustment - Service mode.
  • No channel change or volume adjustment.
  • East/West 2 adjustment.
  • Vertical symmetry adjustment - Service mode.
  • Horizontal blanking phase shift adjustment.
  • VCO adjustment.
  • Replacement of VCU2136A with VCU2133.
  • Service info: East/West- and trapezium corrections.
  • Service info: Adjustment of the S correction.
  • G2 adjustment.
  • Service info: Adjustment of the red gain.
  • Red locking point.
  • No sound. The end stage makes a noise. (part of circuit diagram displayed)
  • Horizontal size adjustment. (OTTOVERSAND - 702548 information)
  • White screen. OSD OK .
  • Service info: Adjustment of the blue section.
  • East/West 2 adjustment.
  • Green drive adjustment.
  • Picture shifted horizontally. (702548 tip from OTTOVERSAND)
  • S-level adjustment R-231.
  • Line end stage transistor.Q601 (2SD1546) fails.
  • Replacement of the Digital-Board.
  • Ticking noise.
  • AFT (T205) coarse adjustment.
  • Shuts down. intermittently.
  • No picture. No synchronisation. (+ extract of circuit diagram)
  • S detector T206 5.5MHz for sound adjustment.
  • Reduced vertical size.
  • Weak contrast.
  • Vertical symmetry adjustment.
  • Adjusting the detector for the sound.
  • Detector T206 (5.5MHz) for the sound.
  • Service info: Adjustment of the vertical symmetry.
  • No picture (after warm-up).
  • Service info: +B adjustment 150V R716.
  • Vertical size adjustment. (702548 OTTOVERSAND repair tip)
  • No picture. via tuner. Audio OK .
  • Horizontal blanking phase shift adjustment.
  • Colour is not in order. No drive from the digital board.
  • Service info: Adjustment of +B 150V R716.
  • S2 adjustment 5.74MHz.
  • Colour shifted.
  • Service info: adjustment of the red gain.
  • Service info: adjustment of the blue section.
  • Intermittently fails.
  • Volume can not be turned down to 0. Cracks at switchover. (OTTOVERSAND - 702548 information)
  • Vertical phase adjustment.
  • Horizontal amplitude.
  • Grey picture without signal.
  • Trap adjustment.
  • Service info: Trapezium 2 adjustment. (OTTOVERSAND - 702548 information)
  • Horizontal lines.
  • Voltage control oscillator adjustment.
  • +B 150V adjustment.
  • Service info: East/West 2 adjustment.
  • Does not detune stations.
  • G2 adjustment.
  • Stripes in picture. at top. (picture attached)
  • Audio level adjustment R-331.
  • Service info: RF adjustment AGC R219.
  • Drive blue. (service info for OTTOVERSAND -702548)
  • S-correction adjustment - Service mode.
  • Service info: Adjustment of the vertical symmetry.

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Last updated: 05. Nov 2009 09:29:54 MET, doccode ISO9002AS168EKA200805C [cachelite] EURASMOP

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