7669830711 IS7049VT / BLAUPUNKT [TV 70-74 (66-70) cm picture]

• Horizontal linearity fault.
• Horizontal white line. (picture attached)
• Snow in picture. intermittently. (picture attached)
• Standby LED OFF. Voltage at collector of line transistor pulsates from 60V to 70V, constantly and with noise.
• Transposition of CCIR channel band 1 (sound at + 6.5MHz) to L standard (sound carrier at - 6,5 MHz).
• Faulty TXT.
• 10cm raster picture.
• How to obtain two AV positions.
• BU508AG blows after 1 min. (part of circuit diagram displayed) (BLAUPUNKT - 7669830711 information)
• No picture. No audio (intermittently).
• Bright picture. Flyback lines. Shuts down. after a while. (with circuit diagram extract) (service info for BLAUPUNKT -7669830711)
• Insufficient PSU secondary voltages.
• Green picture. at top. Flyback lines.
• Fails to start up. Signs in display make no sense. (with circuit diagram extract)
• Picture too small. (with circuit diagram extract)
• No raster on band 3 and band 1, only UHF .
• Line frequency adjustment.
• How to store personal values.
• Loss of colour after switching channels. (service info for BLAUPUNKT -7669830711)
• No audio. via tuner.
• Fixing FBT cables and Focus.
• No reception of the CCIR high channels.
• Appliance disturbs other appliances operated in the same room (VHF or band I/III), also in standby position. (extract of circuit diagram attached)
• Crackling audio. Does not switch over between MONO and STEREO. No audio when aerial is pulled off. No audio after a few minutes. (extract of circuit diagram attached)
• Son adjustment varies at low volume. (+ extract of circuit diagram)
• Slow start-up.
• No start-up. intermittently. Shuts down.
• No colour. Brightness varies. Flyback lines. (picture attached)
• No analog values on RC. Program switching OK.
• No raster. (7669830711 tip from BLAUPUNKT)
• Single digit channel display from 1-9.
• All functions OK until TXT button is pressed. Then appliance stops responding to commands. (+ extract of circuit diagram) (7669830711 BLAUPUNKT repair tip)
• Switch-over to 2-digit display.
• Colour flickers (intermittently).
• BUX 90 blows if 624 blows. (part of circuit diagram displayed)
• Horizontal foldover. at top. Flyback lines. at top. (+ extract of circuit diagram)
• Brightness varies.
• No HV. (extract of circuit diagram attached)
• Line output stage transistor becomes hot and fails after a short time.
• Dark picture, no audio. No AV mode in either direction.
• No picture, only green stripes which run through from top to bottom. No sound.
• Bright portions are blurred on scenes with strong contrast. Loud crackling at switch off.
• Only AV at start-up.
• No RC functions. in TXT.
• No picture. Audio OK . (with circuit diagram extract)
• Picture bounces, shifts and is black and white. Mostly no sound. (with circuit diagram extract)
• Spot of light when switching off the appliance. (+ extract of circuit diagram)
• Picture appears and milky screen.
• Poor horizontal synchronisation. in TXT. (BLAUPUNKT - 7669830711 information)
• No start-up from standby with RC.
• No display, appliance only has white picture, AV is ok. Tuner ok, IF ok, microprocessor ok despite this no SCL and SDA data can be measured. (picture attached)
• All vertical lines are dented or torn after switch on (when cold). (+ extract of circuit diagram)
• If flyback lines in top part of picture, picture amplitude is reduced and lines disappear. On stations with TXT the lines are especially bad. (picture attached)
• End stage-IC (TEA5101A) is S/C and causes damage of R793 (value cannot be recognized). (service info for BLAUPUNKT -7669830711)
• Changing over to the differing French cable channel raster.
• Insufficient light spot suppression when switching off with mains switch.
• Horizontal collapse.
• No sound. Operates OK. Flash damage. Hieroglyphics in display. (extract of circuit diagram attached)
• Digital adjustment of the line frequency and the line phase in multistandard and on appliances converted to multistandard.
• Numerical adjustment of phase and line frequency on multistandard and modified models.
• No start-up. Loud noise. (with circuit diagram extract) (BLAUPUNKT - 7669830711 information)
• In PIP to change small picture position in the corners and frame.
• Line tearing. (part of circuit diagram displayed)
• Squealing noise. after start-up. LED blinks . Switches to standby. (extract of circuit diagram attached)
• Geometry change (e.g. linearity on top) at shock.
• Loss of gain, significant intermittent moire giving the impression of a tuner fault.
• PSU pulsates. Lamp test OK. (with circuit diagram extract)
• Horizontal line. No vertical deflection. (part of circuit diagram displayed)
• Reduced horizontal size. Pincushion distortion. (+ extract of circuit diagram)
• R521 burns for no apparent reason. (7669830711 BLAUPUNKT repair tip)
• Beam spot suppressor is defective. (part of circuit diagram displayed)
• Flyback line.
• PSU pulsates. at start-up. LED blinks . No functions.
• Display plays up at switch on. No picture content
• When the set is connected to a cable TV-system, and certain channels cannot be received at all or only with a poor quality, probably the wrong channel grid has been set.
• Dead. Display OK . (BLAUPUNKT - 7669830711 information)
• Grey picture with flyback lines after switch on. Display OK. Drifting clarity. Switches to standby.
• Stuck in standby. No button operation. (extract of circuit diagram attached)
• No switch on from standby when using front controls. (picture attached) (7669830711 tip from BLAUPUNKT)
• Spot does not disappear at switch off and smears tube. (with circuit diagram extract)
• Change from one AV position to 2 AV positions.
• Only starting with RC. (picture attached)
• Clicking noise. in standby. (picture attached)
• No picture. after a few minutes. Hum in audio.
• Sound in picture. (with circuit diagram extract)
• PSU pulsates. Slow start-up. intermittently. Squealing from PSU. (+ extract of circuit diagram)
• Intermittently phase variation. (picture attached)
• No picture. (picture attached)
• Colour output stage ICs fail repeatedly. (with circuit diagram extract)
• Bright raster. Flyback lines. Shuts down.
• Interference in picture. (+ extract of circuit diagram)
• OSD of wake up alarm (yellow box with time of day), although this has not been programmed.
• OSD wobbles with audio oscillation. (part of circuit diagram displayed)
• Poor RC sensitivity.
• Picture available in standby. (7669830711 tip from BLAUPUNKT)
• Station identification display is constant instead of temporary.
• White screen. Flyback lines. No audio. after a few seconds.
• No sound. Low ticking when volume is increased.
• No picture with intense chirping noise or picture appears only after 2-3 mins and chirping sound disappears. (+ extract of circuit diagram)
• Dead. Very weak hiccups.
• Volume varies. intermittently. (extract of circuit diagram attached)
• No audio. Picture OK . (part of circuit diagram displayed)
• Switches to standby (intermittently).
• Horizontal lines appear in picture in the rhythm of sound (hum in picture) at high volume. (+ extract of circuit diagram)
• No brightness. Audio OK . (part of circuit diagram displayed)
• No start up when switched on with mains switch. (with circuit diagram extract)
• Dark picture. when cold.
• Vertical jitter. Stretched picture. Horizontal lines.
• No RC functions. (with circuit diagram extract)
• Lines in picture. on the left (via AV). (picture attached)
• Front screen.
• Vertical size varies. intermittently.
• Poor picture synchronization, runs through depending on picture content. OSD distorted (e.g. digial Sat and OSDs generated by the appliance appear sharply bent to the right).
• Appliance should go into "AV" ("1 AV") position at switch on.
• No SCART switching AV1 AV2.
• No picture. No audio. intermittently (via SCART).
• Jagged lines move across the picture in the middle. (+ extract of circuit diagram)
• RC IR DATA PROGRAMMER IDP1 or IDP2: automatic programming mode "HP".
• S-channels and UHF do not function. (with circuit diagram extract)
• Picture rolls. Lines in picture. (with circuit diagram extract)
• Focus problems. Blurry picture.
• No reception.
• No tuning.
• No picture. Blank raster. No audio. (picture attached)
• Automatic switch over to protection mode. Increased beam current protection.
• Channel number is displayed constantly.
• Flyback lines (teletext lines) in top third of the picture. Fault does not occur with channels without teletext (extract of circuit diagram attached)
• White picture and flyback lines then no functions after 30 secs. Ok when G2 adjusted to 250V. (with circuit diagram extract)
• No synchronisation.
• White horizontal interference stripes in picture. Pulsates regularly at approx 3-4 Hz. Ok in AV.
• Picture too small. No colour. intermittently. (with circuit diagram extract)
• No picture. When G2 pressed picture covers half of the screen. +D makes 25V. (part of circuit diagram displayed)
• Horizontal, white line one third of the way up the picture. Raster OK. Video on scart. Sound OK. No picture via AV.
• Increasingly bad horizontal synchronisation after a while. Running strokes in picture.
• After start up, display shows A1. Does not go beyond channel 9.
• Programmes skip when tuning. Sound fluctuates or disappears.
• Blurry picture.
• Programming a set using the programmer HTP89.
• PSU pulsates. (picture attached)
• No picture. White raster. "P100" message displayed at top. (part of circuit diagram displayed)
• Picture is like with a poor aerial. Level OK but double picture, approx. 3 cm shadow.
• Slow start-up. Clicking noise. (part of circuit diagram displayed)
• Input of averages at memory loss of analogue values.
• Station name - (station contraction -) OSD: without/a short time after each programme change/permanent.
• BU HE fails after a short time (overheated).
• Krack after approx. 1 sec. after starting.
• Logo cannot be removed from screen. (service info for BLAUPUNKT -7669830711)
• Colour flickers. No colour. after a while. Dark picture.
• No audio. OK via SCART .
• Black screen.
• If too much contrast, then images become in bright areas unfocussed.
• No MONO audio.
• Black stripes at maximum volume. (+ extract of circuit diagram)
• White flyback lines on upper part of picture. (with circuit diagram extract)
• Poor linearity.
• Solid grey picture. Random indications on display. Only standby line visible after 1 min. No operation, no activity on clock and data line.
• Horizontal stripes.
• Moire effect on some channels. A good picture is established by programme/channel switching. (extract of circuit diagram attached)
• Shock from front when switched ON or OFF. (7669830711 tips)
• Volume increases and decreases intermittently. Switches to TXT mode.
• Alignment of line frequency and line phase (lateral image shift) for multi-standard sets and sets converted for multi-standard usage.
• No horizontal deflection.
• Setting of automatic standby time is lost after 10 mins without a signal. Function has to be reset after every start up.
• Reduced vertical deflection. (+ extract of circuit diagram)
• Comes on for a short time. (picture attached)
• To make flashing disappear while switching over channel when programming from 1 to 9.
• Start up in "AV", (1AV).
• No TXT.
• No S/VIDEO function, only AV position.
• Vertical edges of picture run in zigzag lines or are frayed (+ extract of circuit diagram)
• Collapsing picture. Flyback lines.
• Faulty TXT. only on certain channels. (7669830711 tips)
• Flyback lines. at top. (+ extract of circuit diagram)
• Intermittent audio.
• 7 white lines on screen. (with circuit diagram extract)
• Hum in picture with a high volume, visible in form of horizontal stripes in the rhythm of the sound. (with circuit diagram extract)
• Shuts down. after start-up.
• No RC functions (after a while).
• Flyback lines. (picture attached)
• Picture too bright. Volume turns to maximum suddenly. OSD ragging. No switching possible. (BLAUPUNKT - 7669830711 information)
• Picture is vertically too small, jitters vertically, slight tearing, in particular when cold. Knock sensitive.
• Switches to protection mode (intermittently). (with circuit diagram extract)
• Automatic programming (HP) for dealers with the IR autoprogrammer FZ900G1.
• Trips. (picture attached)
• No TXT. Black picture. P100 in picture.
• 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).
• Burst mode. No display. Buzzing sound. (part of circuit diagram displayed)
• No picture. Noise. (part of circuit diagram displayed)
• Reduced vertical size. after warm-up. (with circuit diagram extract)
• IC526 (TDA8140) gets very hot. Switches off.
• Adjustment after erasing memories of average analogical values of brightness, volume, contrast, shade etc...
• No colour. after start-up.
• Power supply hiccups. No hiccups when deflection plug is disconnected. (extract of circuit diagram attached) (7669830711 BLAUPUNKT repair tip)
• 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.
• Reduced vertical and horizontal size. (extract of circuit diagram attached)
• Segments and figures flicker on the screen. White picture. No sound.
• Crackling audio.
• No picture. Distorted audio. (+ extract of circuit diagram)
• No start-up. when cold. (with circuit diagram extract)
• Entry of mean values (brightness, contrast etc.).
• No E/W correction. (part of circuit diagram displayed) (service info for BLAUPUNKT -7669830711)
• No audio. only on certain channels. No colour.
• Volume control is erratic in lower control range. (picture attached)
• Crackling audio. Volume varies. (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.
• Code A on control µP SDA2083. (part of circuit diagram displayed)
• BU508 defective. (picture attached)
• Crackling audio. at start-up.
• Dead. Seems like no current consumption.
• No picture (intermittently). AV OK . (7669830711 BLAUPUNKT repair tip)
• No picture (via AV).
• No switch off from standby.
• Very loud cracking sound at switch on. OK after a few secs, and sometimes for days.
• Does not switch to standby. (picture attached) (BLAUPUNKT - 7669830711 information)
• Starts in AV mode.
• A 1 appears after switch on.
• Intermittent switch over function with audio oscillation. (+ extract of circuit diagram)
• Intermittent colour when zapping.
• Switches to protection mode. (part of circuit diagram displayed)
• Poor audio.
• Snow in picture. when cold.
• Changing channel raster for multistandard TVs or TVs modified in L standard which have to be connected to a French cable network system (CCE II channels). (7669830711 tip from BLAUPUNKT)
• No picture. Displays channels. Sound whistles, varies and becomes very loud.
• No picture, no sound. Channel display is always on 00.
• One or two AV positions.
• Channel names appear continuously or not at all.
• Bright horizontal line, sound OK. (with circuit diagram extract) (7669830711 tip from BLAUPUNKT)
• No channel storing.
• Arc on tripler level. (service info for BLAUPUNKT -7669830711)
• No switch-over to AV mode. AV indicated in program display.
• PSU does not start up. It makes a type of clicking noise. Horizontal line on the picture which turns to zigzags towards the bottom. (part of circuit diagram displayed)
• No picture or sound. Data BUS disturbed. (+ extract of circuit diagram)
• Dark picture. (part of circuit diagram displayed) (7669830711 tips)
• No audio, not on AV mode either.
• Appliance switches unintentionally to stand-by, especially when switching on.
• Flickering picture. Colour fault. (+ extract of circuit diagram)
• No start-up from standby.
• No synchronisation. Horizontal roll. Vertical roll.
• Snow in picture. (7669830711 tips)
• No picture. intermittently. (7669830711 BLAUPUNKT repair tip)
• Switches on. Display functions, then pulsates 3 times and switches off.
• Bright picture. Flyback lines. Switches to standby. after a few seconds. (picture attached)
• Picture contracts with variation in sound. (with circuit diagram extract)
• Mains fuse (2.5A) blows every 2 or 3 days.
• Line BU508A S/C. (+ extract of circuit diagram)
• Impedance adjustment: TXT.
• Jagged edges run from the top to the bottom. Intermittently no sync when cold and loud noises (extract of circuit diagram attached)
• Switches on. No deflection. Display shows program number. Sound ok.
• Occasionally hum in standby position. (+ extract of circuit diagram)
• Functions perfectly but occasionally interference lines move from the top to the bottom, creating zigzags and jagged outlines at the level of the vertical lines. (with circuit diagram extract) (7669830711 BLAUPUNKT repair tip)
• FLOF modification. (BLAUPUNKT - 7669830711 information)
• No sound via RF. Noise wenn volume is increased via RC. sound ok via AV.
• Noise in picture.
• Picture wobbles with PB from a video recorder via AV socket. Vertical lines seems misaligned. Normal TV operation is ok
• Line output transistor fails repeatedly. (+ extract of circuit diagram) (BLAUPUNKT - 7669830711 information)
• Intermittently TXT lines and /or coloured test lines at upper picture edge when cold.
• IC2240 (MC144130P) is defective.
• After 2 secs sound disappears, after a while it reappears. Symptom repeats itself from time to time. (+ extract of circuit diagram)
• Not enough picture height after removing or fitting the teletext components.
• Vertical streaks. on the left (via AV). (part of circuit diagram displayed)
• No picture. Display OK . (extract of circuit diagram attached)
• Line phase adjustment.
• Excessive vertical size (intermittently). (extract of circuit diagram attached)
• Moire pattern. when cold.
• Faulty display operation.
• Switches on with double pulse. (part of circuit diagram displayed)
• Squealing noise. when cold. (picture attached)
• Vertical line. (extract of circuit diagram attached)
• 1cm wide stripes in the top third of the picture, become weaker towards the middle. Vertical lines are folded over in a zig zag shape. (picture attached)
• Dark screen. Audio and OSD OK . (extract of circuit diagram attached)
• Tripping. (part of circuit diagram displayed)
• Dead. (+ extract of circuit diagram)
• No start-up. Smokes.
• BUT76 fails after a short time.
• E/W fault. Line tearing. No E/W correction. (extract of circuit diagram attached)
• Ripples in the middle of the picture.
• Hum in audio. in standby. (picture attached)
• Dead. Standby light is on. 9V on pin 9 of TDA4601 is low. (picture attached)
• Reduced vertical size. Flyback lines. (+ extract of circuit diagram)
• Program name rolls diagonally on screen.
• Reduced picture height. If it is adjusted, bright flyback lines appear on top of picture and picture is distorted.
• No colour. after a while.
• No picture. Sound via AV OK.
• Appliances with 1 or 2 Euro-AV jacks.
• Picture becomes suddenly dark or bright. (7669830711 tips)
• Interference in B I/III. (part of circuit diagram displayed)
• Squealing noise. (part of circuit diagram displayed)
• Programs can only be switched on up to 9, after AV1... appears May occur after changing memory IC.
• No picture. No audio. Display OK .
• Excessive horizontal size. (part of circuit diagram displayed) (7669830711 tips)
• No display. Grey screen. Flyback lines. (with circuit diagram extract)