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774711 / OTTOVERSAND [TV]
The EURAS repair tip database for professional technicians and service engineers
supplies the following faults for 774711 / OTTOVERSAND.
List of fault symptoms:
- No start-up.
- No contrast. White picture.
- Scanning won't stop. No sound. (OTTOVERSAND - 774711 information)
- RC has no range of transmission.
- Bright green picture with flyback lines.
- Picture is displaced to the bottom of the screen. Fault recedes when appliance warms up.
- Picture has shifted approx 10cm downwards and folds down.
- Horizontal sync changes.
- No audio via AV.
- Picture fades. It looks like a tuning problem.
- Switches to protection mode (intermittently). (774711 OTTOVERSAND repair tip)
- No TV/AV switch over.
- Horizontal end stage transistor T2 is destroyed after operating time
- Vertical deflection defective. Different picture errors; sound OK.
- Service adjustment for East/West horizontal amplitude shows no response.
- Adjusting the horizontal centering in TXT.
- No channel storing.
- No colour.
- Dark picture. No display. No vertical scanning.
- White picture and flyback lines.
- Moire in picture via tuner and AV.
- No functions. Starts up OK.
- No sound. Picture is black and perhaps white stripe at the top edge of the picture.
- Transistor BD 683 line driver has no operating voltage at collector.
- In the top part of the picture approx 10 bright flyback lines. Otherwise picture is dark. No sound and PSU begins to tick.
- Dark picture. No vertical deflection.
- Snowy picture after switch on.
- No start-up. Standby LED lights green.
- Occasionally uP blocks.
- Only the Stand-by LED lights up, otherwise there is no function.
- Mains voltage at the antenna socket.
- Only snow in the picture. No tuning possible. (774711 tips)
- No sound via loudspeaker. Sound OK via head phone.
- Picture is blurred and has a very high contrast and contrast cannot be altered.
- No sound. Picture is black and perhaps white stripe at the top edge of the picture.
- No start-up from standby. Standby LED lit .
- Adjusting the control voltage.
- No colours after warm up. (OTTOVERSAND - 774711 information)
- Dark picture.
- One colour is missing, all colours present on the connector D on the picture tube board.
- Appliance runs for some time and then switches off. Operating display LED lights up. Moreover screen is white. Audio is present.
- Bottom half of the picture is missing and horizontal, unsynchronised lines. Improves with time but insufficient vertical amplitude.
- Black picture at the bottom, white line in the middle, distorted picture above that (OTTOVERSAND - 774711 information)
- Line output stage is defective.
- Adjusting the horizontal centering for the video input. (774711 tip from OTTOVERSAND)
- Bright picture. Flyback lines. No audio.
- No functions. LED blinks .
- Sound is distorted. Whistling sound is audible.
- Green picture. Flyback lines.
- Picture sometimes becomes brighter, sometimes darker or normal again. (OTTOVERSAND - 774711 information)
- No function of PIP module via scart. (service info for OTTOVERSAND -774711)
- Picture grey, sound OK. No RC functions.
- 2-3cm wide horizontal stripe in image.
- Picture amplitude is too low at times.
- Horizontal deflection plug burnt.
- Picture rolls at times.
- No picture. No sound. Display is OK. Videotext won't synchronize.
- T2 fails again immediately.
- Insufficient picture height or horizontal line intermittently.
- E/W correction does not work.
- No picture and videotext sync.
- No or incorrect colours.
- No blue. (774711 tips)
- Vertical stripes on top. Picture appears intermittently.
- No red.
- E/W fault.
- No vertical synchronisation.
- Intermittent rolling picture. Sometimes also a horizontal stripe or no picture at all. (774711 tip from OTTOVERSAND)
- PSU does not function.
- Rolling picture, both via tuner and scart. OSD and TXT seem OK.
- No brightness.
- Vertical foldover at top.
- Picture is overcontrolled in AV mode.
- Excessive horizontal size.
- RC does not function at combined SAT appliances. If SAT tuner is disconnected everything is OK. (774711 tips)
- Adjusting the option byte (OP).
- BUZ90 fails.
- BU508A fails at start-up.
- Only low chirping noise in the PSU.
- Picture has folded over at the top.
- No sound or sound distortion.
- Red picture. Flyback lines.
- Only a vertical line.
- Switches to protection mode (after start-up).
- No picture, not even in video. Sound ok. Predominantly green screen, menu display and adjustments.
- After Channel 44 no more programmes can be received.
- Picture is too dark. TXT is hardly recognizable.
- Picture compressed at bottom.
- Over current protection activated.
- Does not memorise.
- Immediate failure of BUV70 at switch on.
- Flyback lines. at top.
- BUV 70 in PSU fails again immediately.
- E/W fault and slight distortion.
- Appliance does not switch on. U2 and U3 are missing. If appliance is started with the IR transmitter chirping can be heard in the PSU.
- Background stripes run through from top towards bottom. (774711 OTTOVERSAND repair tip)
- Does not switch to stereo.
- Picture is completely white via AV.
- In indefinite time intervals drop-out from an individual programmes (variable). Not knock or heat sensitive.
- Standby flashes, no function.
- 2cm wide black stripes in upper picture part.
- Adjusting the Y delay.
- Stripes in picture and distorted picture after 5 mins.
- Bright on the left edge of the picture. Screen is lit up unevenly.
- Picture amplitude is defective. (OTTOVERSAND - 774711 information)
- Dark screen. Audio OK .
- Blank raster. No RC functions. No OSD.
- At switch-on from cold, intermittently no sound and no vertical/horizontal sync. When it switches on correctly, picture comes on with horizontal bars.
- With a new digital board picture is white and has no tone. After switching off picture is white again.
- No picture. Sound present. Picture is blue/lilac with flyback lines. (774711 tips)
- No response to RC. (774711 tips)
- Bright picture. Audio OK . (774711 tip from OTTOVERSAND)
- The top 10 lines have been drawn out and partly folded over. No temperature fault.
- Black-white setting adjustment.
- R19 burns.
- Vertical line.
- Contrast is too weak. Contrast cannot be adjusted.
- Display is black. At times colours are missing.
- No function. No U1 (148).
- Green streaking in videotext mode. (774711 tips)
- Vertical sync is unstable. Dark picture. (774711 tips)
- Power supply transistor fails every 3 hours.
- Picture runs through vertically in tuner operation.
- Shuts down (after a few minutes).
- No vertical scanning. R16, R17, D2 O/C. C10 has been replaced.
- No storage.
- Picture fades, as if stations would go out of tuning.
- Horizontal stripe. intermittently.
- Dark picture. Audio OK .
- No blue.
- No AV operation. Bright picture
- When volume is attempted to be increased, OSD menu displays headphone volume at first. Press red key to control loudspeaker volume. OSD menu shows both bars: headphone volume up and loudspeaker volume down, when volume key is pressed. Each time after start-up, headphone volume bar is active first. (774711 OTTOVERSAND repair tip)
- Horizontal lines in picture with buzz from line output transformer.
- Sound is low and fades away.
- Comes on for a short time.
- Black bars in picture. Flyback lines . No colours. (service info for OTTOVERSAND -774711)
- R17 becomes high resistive in vertical deflection.
- Trips.
- No green.
- No picture. No sound. PSU tries to start, vibrating sound.
- Control unit turns off at times.
- No functions.
- Picture is distorted at D box.
- Bright picture. Flyback lines.
- Bright stripe in picture centre.
- Enter service mode.
- Flicker, moire and rolling horizontal drop out bars of other stations.
- No channel storing. (OTTOVERSAND - 774711 information)
- Picture shifts approx 3-5 mm downwards, then becomes OK again.
- E/W cannot be adjusted.
- On the left two vertical stripes. Sync alters.
- Transistor T101 and IC 101 fail in power supply.
- Line tearing and brightness fluctuation.
- Picture is approx. 1cm high.
- Picture is grey, sound OK.
- Venetian blind effect on the left.
- Small vertical lines in the picture.
- No audio. via tuner (via SCART).
- No U2. (OTTOVERSAND - 774711 information)
- Only half picture. (774711 OTTOVERSAND repair tip)
- Switches on immediately and cannote be switched off with RC.
- No horizontal synchronisation.
- No picture in mono. Ok in stereo.
- Line foldover. (774711 tips)
- No picture. Audio OK .
- Picture folds down on the top. Flyback lines.
- Picture has shifted downward.
- Dead.
- Intermodulation (pattern in coloured surfaces) with large aerial level. Error signs in TXT.
- No synchronisation (after a few seconds). (774711 tips)
- Vertical collapse.
- Stops a brief period after switch on.
- Sound is very low in mono, ok in stereo.
- Picture is bright and flickers, sound is present.
- Vertical deflection is defective. Upper picture aprt is oversized and picture is contracted at the bottom.
- Picture blooming in AV mode.
- Picture height and picture width are too low. Picture is adjustable, however differs from the rated values for the picture tube.
- No picture.
- Black picture.
- Only vertical stripes are visible.
- Contrast is too strong. Cannot be adjusted.
- Reduced horizontal size. (OTTOVERSAND - 774711 information)
- Digiboard fails immediately.
- PSU does not work properly.
- Weak colours. Stripes and lila faces.
- No green.
- Stuck in standby.
- No audio.
- Flyback lines. at top. Dark picture. at bottom. (774711 tips)
- No picture at start up, sound is fine. After 1 minute there is a picture.
- R17 blown in vertical deflection.
- Flyback lines.
- No horizontal deflection (intermittently).
- Snow in picture.
- Adjusting the colour sub carrier.
- Two vertical stripes on the left. Synchronization alters.
- No colours (intermittently).
- Picture is faint, no change when adjusting contrast.
- No picture (intermittently). Audio OK .
- Venetian blind effect in picture from top to picture centre.
- Channel mistunes after memorization.
- Horizontal centre adjustment.
- No sound. Loudspeaker relays are "mute".
- Chirping. (OTTOVERSAND - 774711 information)
- In Service Mode it is not possible to adjust G2.
- White screen.
- Frame fault.
- No sound. Scanning won't stop.
- No red. Picture tube cathode has 200V instead of approx 140V.
- Oscillations at the top of the picture which disappear after a few mins. (OTTOVERSAND - 774711 information)
- Interference lines on band I (mainly channel 4).
- Black screen when Canal Plus decoder is plugged onto scart plug. Scart OK when plugged to VCR.
- Perpendicular stripes on the left of the picture.
With help of this list a solution is found often when OTTOVERSAND 774711 fails.
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Additionally to repairtips or service information 774711 is linked to 17 components (IC's and/or transformers) in the Tectra
database, through which you can identify electrical compatibilities (crossreferences) in
appliances.
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Chassis information is available (which chassis is built in into 774711 ).
EURAS system also knows 208 appliances having the same chassis as 774711 and can easily list them.
In the repair discussion pinboard for 774711 there are 8 replies to questions asked about 2 different repair problems. With access to EURAS you can all read them or enter your own questions and get help for 774711 from EURAS technicians or other users.
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Last updated: 05. Nov 2009 11:39:45 MET, doccode ISO9002AS168EKA200805C EURASMOP
Responsible for the content: EURAS International GmbH, Eime, Germany.
All brand- or productnames are copyrighted by the respective manufacturer of the appliance and are only being used for identification purposes.
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