702275 / OTTOVERSAND [TV]

• After tuning a channel, when pressing M button to store, tuning is lost and screen turns grainy.
• No reception of the CCIR high channels.
• Poor synchronisation. OK when timing is on and via scart.
• Adaptation of band-1 CCIR channel (+6.5MHz sound) of a reception in band 1 of a channel with L standards (-6.5MHz sound carrier).
• Changing over to the differing French cable channel raster.
• No HV.
• No red. Faded picture when pot G2 or focus pressed. Convergence fault. Signals between input and output on picture tube socket are ok.
• Volume will not decrease. (with circuit diagram extract)
• No function - no memory. If you input channel directly and then store the function with "M" then all settings disappear. Sound is very loud. (+ extract of circuit diagram)
• Slight grey flyback line, picture fading and slightly green.
• No blue. The collector voltage on T781 is 47V. It increases to the same potential as the other two transistors when the tube support chroma board connector is disconnected. (with circuit diagram extract)
• TDA4605 and BUZ90A blow after a few days for no apparent reason. (with circuit diagram extract)
• No EHT. Display lights up. (picture attached)
• Clicking in the speaker when switching off with the on/off switch. (with circuit diagram extract)
• Snow in picture. Patterns in picture. (702275 tip from OTTOVERSAND)
• No red. If 3 resistors (1K5) unplugged from tube input and blue one connected on green one then picture is green; if blue one connected on red one then picture is black.
• No reception.
• Flyback lines. at top. (702275 OTTOVERSAND repair tip)
• Dead. Display OK .
• Changing channel raster for multistandard TVs or TVs modified to L-standard which have to be connected to a French cable network system (CCE II channels).
• No picture. Grey screen. Brightness and contrast values are reset when ever any storing is attempted. Signal OK through SCART.
• Picture is completely blurred and striations. (picture attached)
• After some time crackling in sound for a few secs then sound ok and begins to crackle again. (+ extract of circuit diagram)
• In a cable system appliance should receive a French band I channel (audio carrier -6.5MHz), which is converted into a CCIR Band I channel (audio carrier +6.5MHz).
• Setting of automatic standby time is lost after 10 mins without a signal. Function has to be reset after every start up.
• No HV. Display OK . (+ extract of circuit diagram)
• Reduced vertical size (when cold). (+ extract of circuit diagram)
• Green picture.
• Switches automatically to program site AV instead of program site 1 after switch on.
• Snowy screen as if there is no aerial. Channel display normal.
• When switching channels the "momentary" channel display remains on.
• Twangs then rattles. Appliance goes off then comes back on with normal picture but no audio. (extract of circuit diagram attached)
• Picture just rustles.
• Blurry picture. Colour bleeding.
• Picture is saturated in red with blue colour bleeding when eliminating colour using RC. If screen is red, picture contents are blurred.
• Does not switch to AV. Display present. (service info for OTTOVERSAND -702275)
• The colour output stage ICs fail repeatedly.
• OSD of wake up alarm (yellow box with time of day), although this has not been programmed.
• Single digit channel display from 1-9.
• Starts up with "AV".
• Sound fails sporadically or switches to "optimum" function, particularly in bright rooms.
• Sound mutes intermittently or channels switch over spontaneously. (702275 OTTOVERSAND repair tip)
• Vertical collapse. White line. in the centre.
• Front screen.
• No audio. Picture OK .
• Automatic programming (HP) for dealers with the IR autoprogrammer FZ900G1.
• No audio (intermittently). (part of circuit diagram displayed)
• After 10 minutes, does not accept commands from operating panel of RC. (extract of circuit diagram attached) (service info for OTTOVERSAND -702275)
• White screen.
• Intermittent RC or RC ok after switching off for a rather long period of time. (extract of circuit diagram attached)
• Remains in standby when using mains switch. (with circuit diagram extract)
• Vertical size varies. (extract of circuit diagram attached)
• Green colour bleeding and white lines.
• Reduced vertical size. Coloured lines. at top.
• Line oscillates.
• Green colour is missing.
• No audio. (+ extract of circuit diagram)
• Switches to standby, in spite of correct display.
• Incorrect channel raster or standard. Channels shift.
• Mixed colours when increasing the contrast.
• Screen is lit and fuzzy, no sound, no keyboard. Display indicates U with a point on the right.
• No P/C key function. (service info for OTTOVERSAND -702275)
• Procedure to obtain optimum tube heating voltage.
• Excessive green. Flyback lines.
• Flashover with horizontal indentation and picture shrinks vertically. (picture attached)
• TV blocked in standard 0 (low range).
• Bad noise and altered HT signal. (with circuit diagram extract)
• R531 blown at switch on.
• Flickering picture. after a while.
• Picture becomes white after a while and then drops out (flyback lines). Intermittently no picture at start-up.
• No front panel function. RC OK.
• Programming a set using the programmer HTP89.
• No functions. No display. (picture attached)
• No display. PSU chirps.
• IC790 (TEA5101A) is inoperative.
• White line in top 3\4 of screen. No frame deflection.
• Sound and brightness adjustments with RC units RP6LCD and RP65LCD.
• Blank grey raster in tuner and external positions.
• No picture. (part of circuit diagram displayed) (702275 OTTOVERSAND repair tip)
• Intermittent audio. (part of circuit diagram displayed)
• Does not go to standby position despite correct indication in display. (picture attached)
• Volume and brightness control with RC units RP6LCD and RP65LCD. (702275 OTTOVERSAND repair tip)
• Sound cuts out intermittently or appliance changes channel by itself.
• When cold frizzy picture on vertical lines and insufficient width. (part of circuit diagram displayed)
• No horizontal synchronisation. No vertical synchronisation. Fault occurs intermittently. .
• Reduced vertical and horizontal size.
• No Teletext or only wrong characters on the screen with certain stations.
• No brightness or brightness flickering after warming up. (service info for OTTOVERSAND -702275)
• Blue screen. Flyback lines.
• In VHF, moire on some channels (channel 27). Picture becomes ok with programme/channel switching.
• Dead in RF. OK via scart.
• When switching channels the "momentary" channel display remains on. (service info for OTTOVERSAND -702275)
• Severe picture distortion in IF stage.
• Station name - (station contraction -) OSD: without/a short time after each programme change/permanent.
• Channel names appear continuously or not at all.
• Crackling audio.
• Garbled picture with ringing.
• Does not switch to standby. intermittently.
• Sound adjustment varies at low volume. (extract of circuit diagram attached)
• Horizontal noise on vertical lines on whole raster. B/W picture. Intermittent colour.
• Dark screen. Audio OK . (+ extract of circuit diagram)
• No tuning. Only one channel appears, otherwise only snow.
• Front screen. (702275 tips)
• To make flashing disappear while switching over channel when programming from 1 to 9.
• Canal Plus pumps with Syster.
• No synchronisation.
• Changing channels or volume goes up by itself. (+ extract of circuit diagram) (702275 OTTOVERSAND repair tip)
• Jagged verticals when cold.
• No audio (intermittently). (picture attached)
• RCU does not function with Teletext.
• Blocked in AV, functions in scart. No picture, no sound, uniform grey screen. (extract of circuit diagram attached)
• Volume control is erratic in lower control range.
• Dim picture and fading colours.
• Sound is missing or picture is black/white on individual program sites.
• IC811 does not function correctly. (part of circuit diagram displayed)
• No sound or picture. The screen is grey and white. Slight noise in the sound.
• Horizontal and vertical instability.
• No or poor reception of high channels when connecting to a cable TV system. (OTTOVERSAND - 702275 information)
• Vertical lines at the left edge of the picture in position "AV".
• In PIP to change small picture position in the corners and frame.
• Channels 1 to 9 are ok. Impossible to have the other channels since after 9 you go right back to channel 1.
• General information.
• Start up in "AV", (1AV).
• Changes channel by itself. Volume varies. (part of circuit diagram displayed)
• Switches off by itself. Knock sensitive.
• No picture or picture amplitude is too reduced and can not be adjusted.
• Goes to standby occasionally (sometimes twice in one hour or once in one month).
• Logo displayed for a short time when changing channels, display is constant, display fault.
• Dead.
• RC IR DATA PROGRAMMER IDP1 or IDP2: automatic programming mode "HP".
• No picture. Audio OK . (with circuit diagram extract)
• Sound is intermittent. Sound is available for a short while on pushing volume +.
• Switches to standby (after start-up).
• White flyback lines appear in the top part of the screen. (picture attached)
• No reception of CCIR high channels. Then receives a cable channel with French standard (display indicates "n1").
• Blows fuse. at start-up. (+ extract of circuit diagram)
• Digital adjustment of the line frequency and the line phase in multistandard and on appliances converted to multistandard.
• Colour output stage ICs fail repeatedly.
• functions only from program 1-9. Switches on with AV. Special channels shfited.
• No picture. No audio. after a while.
• Stuck on a channel.
• No 25V with deflector disconnected. Secondary voltages ok. (with circuit diagram extract)
• Line tearing. Vertical size varies.
• Hum in audio. at low volume. (with circuit diagram extract)
• Appliance switches off in intervals which are constantly decreasing. After complete discharge the appliance runs for approx 90 mins then switches into standby, after repeated switching on approx 2-3 mins operating time. (702275 OTTOVERSAND repair tip)
• No reaction from adjustment coil L511.
• No picture. Audio OK . Arcing.
• Black screen without picture. No picture in AV mode either. Sound OK.
• No audio. OK via SCART .
• No picture. No tuning. (+ extract of circuit diagram)
• Numerical adjustment of phase and line frequency on multistandard and modified models.
• Channel indication does not match channel. Channels appear as if they have been shuffled. (service info for OTTOVERSAND -702275)
• No picture. via tuner.
• No RC functions. (+ extract of circuit diagram)
• Switches to protection mode (intermittently). Display OK . (part of circuit diagram displayed)
• Very fine black lines over the picture. Very slight motor boating noise in the sound.
• Channels drift off tune (for ex. K60 = K66, K32 = 28 etc.)
• Fastening of line output transformer and focus cables.
• TXT VT5305TF on mono chassis: change of TP621 for TP661 with its TXT control panel.
• Entry of mean values (brightness, contrast etc.).
• Intermittent interruption of picture and sound. Functions ok in scart. (with circuit diagram extract)
• For repair works, the set must not switch off 10 minutes after closedown or in case of a station breakdown. This state cannot be stored.
• Vertical picture, vibrating (lines).
• Bright portions are blurred on scenes with strong contrast. Loud crackling at switch off. (service info for OTTOVERSAND -702275)
• Sound turns up and down at times.
• Each time the TV is switched on, it goes into AV. You are forced to increase the channels and the sound is too low, it increases very slowly.
• Black screen. (702275 tip from OTTOVERSAND)
• Volume varies. intermittently.
• Sound cuts out occasionally or the appliance changes channel by itself.
• Remains in PAL. (OTTOVERSAND - 702275 information)
• No or poor synchronisation.
• No picture (thermal tube noise) and no sound after a storm but channel nos are displayed. (picture attached)
• Transistor T572 is destroyed over and over. Either at switch over to another program, or after longer run length.
• Unable to store colour settings.
• After replacing the microprocessor SDA2023, A002 short circuits it. The TV operates well in scart but not in HF (dark screen). No sound. Only 2 buttons on the control panel function
• Line transistor BU508D heats up and blows in standby. (extract of circuit diagram attached)
• Brightness varies.
• Horizontal white line. in the centre. (702275 tip from OTTOVERSAND)
• 80% snow on screen.
• Switches over by itself. Volume varies. (extract of circuit diagram attached) (service info for OTTOVERSAND -702275)
• Loud crackling at switch off.
• Very dark picture. Only 2 colours, pale blue and green dominance. Picture content horizontally torn and fade.
• Dark picture. intermittently. (702275 tips)
• PSU pulsates.
• Intermittently blue raster, flashing black line then blank raster.
• Does not respond to standby key on RC. All other commands are OK.
• Screen becomes dark for approx 1-4 hours after going into SERVICE mode.
• Picture approx 5cm too small on all four sides. Grinding noise from horizontal output stage. Picture disappears completely for a short time and reappears. Intermittently green picture content. (702275 OTTOVERSAND repair tip)
• Intermittently line locking, occasionally with no vertical sync.
• Afterglow at switch off. (part of circuit diagram displayed)
• Intermittently no sound (once every 2 weeks). OK after pressing Volume Up or Reset. (with circuit diagram extract)
• Red colour is missing.
• PSU pumps at switch on for a few mins. Display flashes. TV functions when warm.
• Dark screen.
• Change over from FB30 to FB101.
• Switching off the two-digit programme sites (10-29, 10-49, 10-99 depending on the individual set). Switchover using the numeric buttons will therefore become quicker. Two-digit programme sites can still be chosen with rocker switch.
• No reception on any channel. Memory not operating.
• Jagged picture.
• Transistor T644/BUZ90A fails immediately at switch on. (with circuit diagram extract)
• Procedure to reduce tube afterglow point.
• No AV operation via scart. Tuner operation ok.
• Input of averages at memory loss of analogue values.
• Loud sound. Bright picture. Adjustment values of the picture and sound cannot be memorized.
• Streak on video (almost inverted), faded picture even in fast switching.
• White bars and dots on picture when Canal Plus is encrypted. Picture OK in clear. (702275 tip from OTTOVERSAND)
• Line in top third of picture. (+ extract of circuit diagram)
• Buzz in audio.
• Switches to standby (intermittently). (extract of circuit diagram attached)