3576 / ITT [TV]

• Distorted TXT.
• Line fault when appliance is switched on. Patterning after a few mins as if AFC pulling tuning upwards to the point where line sync begins to break up.
• Picture is very bright and only the outlines of the picture content can be seen. Colours are not ok.
• Poor picture.
• Appliance trips at switch on, EHT level rises then falls.
• Intermittent black bars, blanking.
• No picture. No audio. Standby LED flashes .
• No picture. Audio crackles. All voltages are ok.
• No picture. No sound. Start up OK.
• Unstable colour temperature.
• No picture. No sound. When loading the horizontal voltage is approx 108V and the PSU squeaks. All transistors in the primary PSU, D714, C714, C715 have already been replaced.
• "Moire" in the UHF area. Low aerial voltage (noises).
• Sound fault
• Blank screen with line 2" from top, buzzing on sound. On changing channel picture would appear for a few seconds floating sideways.
• Occasionally with stereo transmissions the stereo lamp flickers and audio playback occurs in mono.
• R518 (100 ohm) burns up.
• Picture or sound dropout caused by knocking.
• When receiving teletext there may be representation problems (eg missing teletext rows).
• From the bottom, the picture comes slowly up the screen then the appliance turns off.
• No picture. No sound. Display OK. Seems like all channels are on AV. Stereo indication OK.
• No teletext or is defective.
• Top 1/2 picture reduced, bottom 1/2 normal. (3576 ITT repair tip)
• The TXT shows white lines.
• Line jitter ER/sync.
• Failure of T738 (type on 4046).
• Picture and sound show intermittent faults caused by knocking. (3576 ITT repair tip)
• Volume difference between TV and AV.
• Low H.T. or dead.
• No horizontal synchronisation. after a while.
• After being switched on a too bright white picture can be seen and afterwards the protective circuit turns the appliance off.
• The PSU functions, however output voltage is only approx 80% of the rated voltage. (3576 tip from ITT)
• Light in the picture. Almost no picture perceived and no colour present. Brightness should be adjusted but not the colour.
• How to store values in SERVICE mode.
• Distorted picture. when cold. OK after a while .
• No raster.
• Lines flashing on the picture.
• Picture shifted vertically.
• Moire lines. No PIP.
• No RC functions.
• Picture twitches. After some time interference lines appear.
• Some picture parts drop out. TXT is distorted.
• After voltage flashover in the picture tube the operation unit switches to AV`mode.
• No tuning.
• Snow in picture.
• Unstable picture.
• The TV is intermittently saturated with light.
• Cannot store with M key
• Green picture (intermittently).
• Strange problems on horizontal stage. (3576 tip from ITT)
• Horizontal line. at top.
• RC only functions when approx 10cm away
• Usys is too high (approx. 160V) (ITT - 3576 information)
• Vertical stripes on left picture side.
• Colour flickers.
• No colour.
• Most sound faults.
• Intermittent brightness. Vertical stripes. TXT jitters. (3576 tip from ITT)
• Colour fault.
• Occasionally the appliance switches off If the chassis has been knocked the fault also occurs.
• Picture rolls.
• Tint distortions during the first minutes of operation after switching on appliance. Picture tube still has max emission.
• Intermittent standby. (3576 tips)
• Commands of IR transmitter and of control panel are accepted (diode flashes) but not carried out. Blockage is removed by switching off then switching on again.
• Clock does not run through.
• Snowy raster.
• Greyscale flickering. (3576 ITT repair tip)
• The appliance does not function. +145V is missing. The electr. protection does not respond. (3576 ITT repair tip)
• Reduced vertical size at bottom.
• The colour changes, flickers and the brightness changes to an empty white field. (3576 tip from ITT)
• The power supply for both the digi-version appliances do not function very well when they are not loaded.
• Lines can be seen horizontally in the picture, it jumps and occasionally the picture lowers approx 10cm.
• Reduced vertical deflection. after a few hours.
• Shuts down. intermittently.
• Flyback lines. at top.
• Failure of the e-w diodes.
• BU208 is defective.
• Picture and sound are missing, incorrect channel tuning.
• Colour and/ or luminance noise when warm.
• No audio. (service info for ITT -3576)
• Weak, vertical lines can be seen on a grey background.
• Dark picture. Horizontal line in upper picture part. Colours alter.
• Reduced vertical size. Picture rolls.
• Shuts down. at start-up. (service info for ITT -3576)
• Unlinear field scan.
• Line fault and patterning.
• Distorted audio (after a while). No picture.
• Dead. after a few seconds.
• No display.
• All received stations are only weak, flickering and with a white horizontal rolling bar. Stations can be stored. Everything OK through SCART socket.
• No start-up.
• Erratic start-up.
• No brightness. Audio OK .
• Raster error. Picture centering cannot be adjusted enough to top.
• Replacement transistors fail without an obvious reason (T742).
• Running colours.
• Unstable picture. OK after approx 10 mins. (service info for ITT -3576)
• Crackling audio. depending on picture content.
• S and sibilants are distorted.
• No RC functions. intermittently.
• Moire effect in case of appliances with PIP.
• Cannot be switched over from still picture to moving picture when warm.
• 50V in PSU instead of 145V.
• No switch on from RC. Switches on from standby. Picture is dark and no display.
• Intermittent audio and picture. Intermittent audio and picture.
• Defective vertical linearity.
• Distorted geometry.
• Crackling audio.
• Picture central on normal television but 2" to the left on teletext.
• E/W diodes are defective.
• Raster is blank, sound is missing and appliance remains in AV mode.
• Dark green pict. After adjusting G2 no more switching over or adjustment poss. Switch appliance off and on again. When attempting a CUT OFF RGB adjustment with +u- no reaction. Adjustment of vertical and horizontal deflection ok.
• No colour. intermittently.
• Dead. PSU overloaded.
• If IC650 (VCK2100A) on the Digi-board is defective numerous faults can occur.
• No picture synchronisation after start-up. Picture appears after 10 mins.
• No tuning. Channel display on .
• Volume adjustments jump. No continuous adjustment possible.
• Colout drops out. Picture becomes white. (3576 ITT repair tip)
• Lines in picture.
• At switch on line fault. After 2 mins. patterning occurs.
• Horizontal stripes by poor signals.
• Blows fuse. after start-up.
• Noise from EHT. No display .
• Corrupt text.
• Blank raster.
• Brightness varies. No TXT. (ITT - 3576 information)
• Poor colour. (3576 tip from ITT)
• Sound cracks when on hypersound.
• Bright picture. Flyback lines.
• Intermittent channel changes / intermittent no remote operation.
• No start-up. intermittently (when cold).
• There is sound but no picture. A visible raster is obtained only with the first anode voltage at maximum. This raster is covered with flyback lines and seems to have no vertical hold.
• Tripping (intermittently).
• Intermittently dead.
• Snow in picture with line jamming.
• In top section of picture, horizontal coloured lines such as flyback lines.
• On switch on, EHT rises, then falls.
• The digital board is not ok.
• Control unit does not react properly.
• Does not switch to standby. after a few hours.
• No functions. Whistling. (service info for ITT -3576)
• Picture shifted to the left. in TXT.
• No sound or very low sound.
• Sound bangs and brightness varies
• Peak brightness and flyback lines.
• BU fails.
• Sporadic drop-out of the medium range UHF channels.
• No sound or sound on one channel is missing.
• Picture is missing, sound and EHT are ok.
• Red picture, grey scale does not work.
• The black line appears at the top of the picture.
• Poor resolution. (3576 tip from ITT)
• Chirping.
• Distorted picture when cold. Line folds over occasionally. Sound disappears.
• Insufficient picture clarity. (ITT - 3576 information)
• Occasionally the appliance does not respond to the remote control. If the appliance has been switched off and back on it functions correctly.
• Due to defective identification in Secam reception only black and white picture or colour flecks.
• TXT info shifted.
• Picture has poor definition.
• Picture shifted vertically. at bottom.
• RCU signal occasionally locks out.
• Teletext is not in the middle of the picture.
• Intermittent colour.
• Lines in picture. at bottom (when cold).
• Dead.
• Occasionally some symbols are missing during TXT reception.
• Unstable picture. after warm-up.
• Line phase faults.
• There are vertical lines on band I. The lines appear stronger on the left hand side.
• Picture looks cloudy.
• Dark display. Dark screen. (3576 tips)
• Bright raster. No picture. Audio OK .
• Sound disturbances during HF playback. The sound breaking does not function. During AV playback there are no disturbances.
• Distorted sound, when volume at minimum. Ok when volume at maximum.
• Whistle, channels indicator lights momentarily, then electronic fuse operates.
• Fuses blown.
• Fuse FU701 (1A) in PSU fails intermittently
• White screen. Flyback lines.
• Green raster and flyback lines.
• Dead. Trips once at switch on.
• Crackling audio. at low volume.
• Enter service mode.
• No or intermittent start-up. Slow start-up.
• No start-up. Standby LED flashes .
• EHT comes up and then set goes dead, with no channel display.
• Coarse spots appear on red and blue then disappear after about 10 mins. (3576 tip from ITT)
• Tripping.
• Transistor BU5080A fails continuously.
• Repeated failure of diodes D540/D541 (horizontal end stage).
• In reception of mono TV channels, STEREO indication flashes or is lit up continuously. At switch on both indications light up for a moment and cracking and noise through both speakers.
• Noise in picture. Weak signal.
• Text flashing on 9's etc.
• Reduced horizontal size.
• Loud crackling in the speaker. Sound can scarcely be understood. Audio processor has already been replaced. Volume can be adjusted. If you activate the service switch sound is perfect.
• Vertical fault.
• No S-correction.
• The stored values of some or all the functions have altered.
• Shuts down.
• Oscillator unlocks when cold.
• Intermittent passage in black and white.
• Picture is folded down by approx 10cm at the top edge. (3576 tips)
• Weak contrast.
• Some letters or symbols in the TXT are flashing.
• No or poor colour.
• Goes to standby intermittently and spontaneously.
• Intermittent operation of electronic fuse.