7669830710 IS7049VT / BLAUPUNKT [TV 70-74 (66-70) cm picture]

• Logo cannot be removed from screen.
• No sound via RF. Noise wenn volume is increased via RC. sound ok via AV.
• Very loud cracking sound at switch on. OK after a few secs, and sometimes for days. (7669830710 tip from BLAUPUNKT)
• Flyback lines. at top. (picture attached)
• Dark picture, no audio. No AV mode in either direction.
• Bright horizontal line, sound OK. (picture attached)
• Colour flickers (intermittently).
• Intermittently phase variation. (with circuit diagram extract)
• No reception.
• Automatic programming (HP) for dealers with the IR autoprogrammer FZ900G1.
• No RC functions. (+ extract of circuit diagram)
• No picture. No audio. intermittently (via SCART).
• No raster on band 3 and band 1, only UHF .
• Squealing noise. (part of circuit diagram displayed)
• E/W fault. Line tearing. No E/W correction. (part of circuit diagram displayed)
• Excessive vertical size (intermittently). (extract of circuit diagram attached)
• Green picture. at top. Flyback lines.
• White horizontal interference stripes in picture. Pulsates regularly at approx 3-4 Hz. Ok in AV.
• No start-up. Loud noise. (with circuit diagram extract)
• No picture. (+ extract of circuit diagram)
• No picture. intermittently.
• Horizontal linearity fault.
• Horizontal lines appear in picture in the rhythm of sound (hum in picture) at high volume. (+ extract of circuit diagram)
• No raster.
• Bright raster. Flyback lines. Shuts down.
• Insufficient PSU secondary voltages.
• No picture (via AV).
• PSU pulsates. Slow start-up. intermittently. Squealing from PSU. (extract of circuit diagram attached)
• Sound in picture. (picture attached)
• No picture. No audio. Display OK . (7669830710 tips)
• Reduced vertical size. after warm-up. (picture attached)
• No start up when switched on with mains switch. (extract of circuit diagram attached)
• Input of averages at memory loss of analogue values.
• Intermittent colour when zapping.
• Poor linearity.
• BU508AG blows after 1 min. (picture attached)
• Dead. Standby light is on. 9V on pin 9 of TDA4601 is low. (picture attached)
• No E/W correction. (part of circuit diagram displayed)
• Hum in audio. in standby. (part of circuit diagram displayed)
• Faulty TXT. only on certain channels.
• IC2240 (MC144130P) is defective.
• Clicking noise. in standby. (extract of circuit diagram attached)
• Programs can only be switched on up to 9, after AV1... appears May occur after changing memory IC.
• Change from one AV position to 2 AV positions. (service info for BLAUPUNKT -7669830710)
• Picture is vertically too small, jitters vertically, slight tearing, in particular when cold. Knock sensitive.
• BUT76 fails after a short time.
• Line phase adjustment.
• Changing over to the differing French cable channel raster.
• Intermittent audio.
• Appliance should go into "AV" ("1 AV") position at switch on.
• Dark picture. when cold.
• 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.
• Crackling audio.
• Start up in "AV", (1AV).
• White flyback lines on upper part of picture. (part of circuit diagram displayed)
• Program name rolls diagonally on screen.
• Horizontal foldover. at top. Flyback lines. at top. (+ extract of circuit diagram)
• To make flashing disappear while switching over channel when programming from 1 to 9.
• Solid grey picture. Random indications on display. Only standby line visible after 1 min. No operation, no activity on clock and data line.
• Dead. Very weak hiccups.
• Switches to protection mode. (part of circuit diagram displayed)
• 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. (picture attached)
• Fails to start up. Signs in display make no sense. (part of circuit diagram displayed)
• 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. (+ extract of circuit diagram)
• Picture appears and milky screen.
• No picture, only green stripes which run through from top to bottom. No sound.
• Excessive horizontal size. (part of circuit diagram displayed) (BLAUPUNKT - 7669830710 information)
• Lines in picture. on the left (via AV). (picture attached)
• 10cm raster picture.
• Entry of mean values (brightness, contrast etc.).
• Intermittently TXT lines and /or coloured test lines at upper picture edge when cold.
• No sound. Low ticking when volume is increased.
• No analog values on RC. Program switching OK.
• S-channels and UHF do not function. (with circuit diagram extract)
• Station name - (station contraction -) OSD: without/a short time after each programme change/permanent.
• Interference in picture. (picture attached)
• Reduced picture height. If it is adjusted, bright flyback lines appear on top of picture and picture is distorted.
• Volume increases and decreases intermittently. Switches to TXT mode.
• No picture. Audio OK . (part of circuit diagram displayed)
• Vertical edges of picture run in zigzag lines or are frayed (picture attached)
• Beam spot suppressor is defective. (with circuit diagram extract)
• Mains fuse (2.5A) blows every 2 or 3 days.
• Line tearing. (with circuit diagram extract)
• A 1 appears after switch on.
• No picture. Noise. (+ extract of circuit diagram) (7669830710 BLAUPUNKT repair tip)
• 7 white lines on screen. (part of circuit diagram displayed)
• Trips. (part of circuit diagram displayed) (service info for BLAUPUNKT -7669830710)
• Brightness varies.
• Flyback line.
• No picture. No audio (intermittently). (7669830710 BLAUPUNKT repair tip)
• No synchronisation.
• Crackling audio. at start-up.
• 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).
• In PIP to change small picture position in the corners and frame.
• Programmes skip when tuning. Sound fluctuates or disappears.
• Comes on for a short time. (with circuit diagram extract)
• 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. (with circuit diagram extract)
• Loss of gain, significant intermittent moire giving the impression of a tuner fault.
• Dark picture. (extract of circuit diagram attached)
• Insufficient light spot suppression when switching off with mains switch.
• No display. Grey screen. Flyback lines. (picture attached)
• Collapsing picture. Flyback lines.
• No picture. Sound via AV OK.
• Jagged lines move across the picture in the middle. (part of circuit diagram displayed)
• Alignment of line frequency and line phase (lateral image shift) for multi-standard sets and sets converted for multi-standard usage.
• Vertical jitter. Stretched picture. Horizontal lines.
• Starts in AV mode.
• Shuts down. after start-up. (service info for BLAUPUNKT -7669830710)
• Colour output stage ICs fail repeatedly. (picture attached)
• End stage-IC (TEA5101A) is S/C and causes damage of R793 (value cannot be recognized).
• Reduced horizontal size. Pincushion distortion. (picture attached)
• Station identification display is constant instead of temporary.
• 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 SCART switching AV1 AV2.
• Snow in picture. when cold. (service info for BLAUPUNKT -7669830710)
• Only AV at start-up.
• Single digit channel display from 1-9. (7669830710 tips)
• How to store personal values.
• Tripping. (with circuit diagram extract)
• PSU pulsates. Lamp test OK. (with circuit diagram extract) (7669830710 tips)
• Picture too bright. Volume turns to maximum suddenly. OSD ragging. No switching possible.
• No picture. Displays channels. Sound whistles, varies and becomes very loud.
• Code A on control µP SDA2083. (part of circuit diagram displayed)
• Spot of light when switching off the appliance. (+ extract of circuit diagram)
• Horizontal white line. (extract of circuit diagram attached)
• No picture or sound. Data BUS disturbed. (with circuit diagram extract)
• Switches on. Display functions, then pulsates 3 times and switches off.
• Black screen. (BLAUPUNKT - 7669830710 information)
• Appliances with 1 or 2 Euro-AV jacks.
• No start-up. when cold. (with circuit diagram extract)
• Spot does not disappear at switch off and smears tube. (picture attached)
• No S/VIDEO function, only AV position.
• If too much contrast, then images become in bright areas unfocussed.
• 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).
• Dead. Display OK .
• RC IR DATA PROGRAMMER IDP1 or IDP2: automatic programming mode "HP".
• No reception of the CCIR high channels.
• No switch-over to AV mode. AV indicated in program display.
• Increasingly bad horizontal synchronisation after a while. Running strokes in picture.
• Crackling audio. Volume varies. (part of circuit diagram displayed)
• No audio. OK via SCART .
• Jagged edges run from the top to the bottom. Intermittently no sync when cold and loud noises (with circuit diagram extract) (service info for BLAUPUNKT -7669830710)
• Dark screen. Audio and OSD OK . (extract of circuit diagram attached)
• Dead. Seems like no current consumption.
• Crackling audio. Does not switch over between MONO and STEREO. No audio when aerial is pulled off. No audio after a few minutes. (picture attached)
• No HV. (+ extract of circuit diagram)
• Flyback lines. (+ extract of circuit diagram)
• No picture with intense chirping noise or picture appears only after 2-3 mins and chirping sound disappears. (with circuit diagram extract)
• Vertical line. (picture attached)
• Bright picture. Flyback lines. Shuts down. after a while. (part of circuit diagram displayed)
• No switch off from standby.
• Blurry picture.
• Reduced vertical deflection. (with circuit diagram extract) (7669830710 tips)
• Line frequency adjustment.
• No RC functions (after a while).
• Noise in picture.
• No tuning.
• No brightness. Audio OK . (part of circuit diagram displayed)
• PSU pulsates. (extract of circuit diagram attached)
• No audio. via tuner.
• Numerical adjustment of phase and line frequency on multistandard and modified models.
• No picture, no sound. Channel display is always on 00. (7669830710 BLAUPUNKT repair tip)
• Focus problems. Blurry picture.
• Fixing FBT cables and Focus.
• Intermittent switch over function with audio oscillation. (with circuit diagram extract)
• Only starting with RC. (picture attached)
• Slow start-up. Clicking noise. (part of circuit diagram displayed)
• 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)
• Shock from front when switched ON or OFF.
• Squealing noise. after start-up. LED blinks . Switches to standby. (extract of circuit diagram attached)
• Son adjustment varies at low volume. (picture attached)
• Switches to standby (intermittently).
• Slow start-up.
• Switch-over to 2-digit display. (service info for BLAUPUNKT -7669830710)
• Line output transistor fails repeatedly. (extract of circuit diagram attached)
• Picture too small. (extract of circuit diagram attached)
• Horizontal, white line one third of the way up the picture. Raster OK. Video on scart. Sound OK. No picture via AV. (BLAUPUNKT - 7669830710 information)
• Snow in picture. intermittently. (extract of circuit diagram attached)
• Bright portions are blurred on scenes with strong contrast. Loud crackling at switch off.
• Geometry change (e.g. linearity on top) at shock.
• Segments and figures flicker on the screen. White picture. No sound.
• Automatic switch over to protection mode. Increased beam current protection.
• Grey picture with flyback lines after switch on. Display OK. Drifting clarity. Switches to standby.
• No horizontal deflection.
• No TXT.
• Picture available in standby.
• No audio. only on certain channels. No colour.
• No RC functions. in TXT.
• No picture. Distorted audio. (picture attached)
• Picture too small. No colour. intermittently. (with circuit diagram extract)
• Stuck in standby. No button operation. (part of circuit diagram displayed)
• Programming a set using the programmer HTP89.
• White picture and flyback lines then no functions after 30 secs. Ok when G2 adjusted to 250V. (part of circuit diagram displayed)
• Horizontal collapse.
• Horizontal stripes.
• Volume varies. intermittently. (+ extract of circuit diagram)
• Black stripes at maximum volume. (+ extract of circuit diagram)
• No picture. Display OK . (extract of circuit diagram attached)
• Setting of automatic standby time is lost after 10 mins without a signal. Function has to be reset after every start up.
• Display plays up at switch on. No picture content
• If flyback lines in top part of picture, picture amplitude is reduced and lines disappear. On stations with TXT the lines are especially bad. (part of circuit diagram displayed) (7669830710 BLAUPUNKT repair tip)
• Snow in picture. (7669830710 tips)
• Power supply hiccups. No hiccups when deflection plug is disconnected. (extract of circuit diagram attached)
• Transposition of CCIR channel band 1 (sound at + 6.5MHz) to L standard (sound carrier at - 6,5 MHz).
• Reduced vertical and horizontal size. (picture attached)
• Vertical size varies. intermittently.
• One or two AV positions.
• Channel number is displayed constantly.
• R521 burns for no apparent reason.
• All vertical lines are dented or torn after switch on (when cold). (picture attached)
• No channel storing.
• After start up, display shows A1. Does not go beyond channel 9.
• Colour flickers. No colour. after a while. Dark picture.
• Squealing noise. when cold. (+ extract of circuit diagram) (service info for BLAUPUNKT -7669830710)
• Picture wobbles with PB from a video recorder via AV socket. Vertical lines seems misaligned. Normal TV operation is ok
• Moire effect on some channels. A good picture is established by programme/channel switching. (+ extract of circuit diagram)
• Switches on. No deflection. Display shows program number. Sound ok.
• Flickering picture. Colour fault. (extract of circuit diagram attached)
• Switches to protection mode (intermittently). (picture attached)
• All functions OK until TXT button is pressed. Then appliance stops responding to commands. (part of circuit diagram displayed)
• No audio. Picture OK . (part of circuit diagram displayed)
• No sound. Operates OK. Flash damage. Hieroglyphics in display. (part of circuit diagram displayed)
• Picture contracts with variation in sound. (picture attached)
• Vertical streaks. on the left (via AV). (+ extract of circuit diagram)
• Occasionally hum in standby position. (picture attached) (BLAUPUNKT - 7669830710 information)
• No start-up from standby with RC.
• PSU pulsates. at start-up. LED blinks . No functions.
• Hum in picture with a high volume, visible in form of horizontal stripes in the rhythm of the sound. (picture attached)
• Volume control is erratic in lower control range. (+ extract of circuit diagram) (7669830710 tips)
• OSD of wake up alarm (yellow box with time of day), although this has not been programmed.
• Poor RC sensitivity.
• Flyback lines (teletext lines) in top third of the picture. Fault does not occur with channels without teletext (+ extract of circuit diagram)
• Standby LED OFF. Voltage at collector of line transistor pulsates from 60V to 70V, constantly and with noise.
• No picture. When G2 pressed picture covers half of the screen. +D makes 25V. (with circuit diagram extract)
• No TXT. Black picture. P100 in picture. (BLAUPUNKT - 7669830710 information)
• Bright picture. Flyback lines. Switches to standby. after a few seconds. (+ extract of circuit diagram)
• Interference in B I/III. (extract of circuit diagram attached)
• No MONO audio.
• Picture is like with a poor aerial. Level OK but double picture, approx. 3 cm shadow. (7669830710 tips)
• No picture. White raster. "P100" message displayed at top. (extract of circuit diagram attached)
• Digital adjustment of the line frequency and the line phase in multistandard and on appliances converted to multistandard.
• Adjustment after erasing memories of average analogical values of brightness, volume, contrast, shade etc...
• Appliance disturbs other appliances operated in the same room (VHF or band I/III), also in standby position. (extract of circuit diagram attached)
• Burst mode. No display. Buzzing sound. (picture attached)
• 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). (7669830710 tip from BLAUPUNKT)
• Horizontal line. No vertical deflection. (picture attached)
• 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.
• Poor horizontal synchronisation. in TXT.
• OSD wobbles with audio oscillation. (extract of circuit diagram attached)
• Loss of colour after switching channels.
• Ripples in the middle of the picture.
• Line output stage transistor becomes hot and fails after a short time.
• IC526 (TDA8140) gets very hot. Switches off.
• No start-up. intermittently. Shuts down.
• Reduced vertical size. Flyback lines. (picture attached)
• Switches on with double pulse. (+ extract of circuit diagram)
• Front screen. (7669830710 tip from BLAUPUNKT)
• Faulty TXT.
• BUX 90 blows if 624 blows. (part of circuit diagram displayed)
• Line BU508A S/C. (with circuit diagram extract)
• Picture rolls. Lines in picture. (part of circuit diagram displayed)
• Poor audio.
• Channel names appear continuously or not at all.
• BU HE fails after a short time (overheated).
• Impedance adjustment: TXT. (BLAUPUNKT - 7669830710 information)
• Not enough picture height after removing or fitting the teletext components.
• No colour. after a while.
• No picture. Blank raster. No audio. (with circuit diagram extract)
• No switch on from standby when using front controls. (+ extract of circuit diagram)
• No colour. Brightness varies. Flyback lines. (extract of circuit diagram attached)
• Picture becomes suddenly dark or bright.
• How to obtain two AV positions.
• Faulty display operation.
• No synchronisation. Horizontal roll. Vertical roll.
• No picture (intermittently). AV OK .
• No audio, not on AV mode either.
• No start-up. Smokes.
• No colour. after start-up.
• No start-up from standby. (7669830710 tip from BLAUPUNKT)
• Does not switch to standby. (part of circuit diagram displayed)
• Picture bounces, shifts and is black and white. Mostly no sound. (+ extract of circuit diagram)
• Arc on tripler level. (7669830710 tip from BLAUPUNKT)
• FLOF modification.
• White screen. Flyback lines. No audio. after a few seconds.
• After 2 secs sound disappears, after a while it reappears. Symptom repeats itself from time to time. (part of circuit diagram displayed) (7669830710 BLAUPUNKT repair tip)
• No picture. after a few minutes. Hum in audio.
• Moire pattern. when cold.
• Dead. (part of circuit diagram displayed)
• Appliance switches unintentionally to stand-by, especially when switching on.
• BU508 defective. (+ extract of circuit diagram)
• Krack after approx. 1 sec. after starting.