66762 / SBR [TV 70-74 (66-70) cm picture]

• Blanking of the raster, starting at bottom of the picture. (part of circuit diagram displayed)
• No drive at BU826. (with circuit diagram extract) (66762 tips)
• BU508 fails continuously. (with circuit diagram extract)
• Herringone pattern and upper channels are not accepted when tuning.
• E/W-error, trapezium distortion. (part of circuit diagram displayed)
• Non-linearity on vertical sync. (with circuit diagram extract)
• On cable reception, stations cannot be tuned or the stations wander off. (SBR - 66762 information)
• On/off LED flickering. All front panel symbols light up but no control. (picture attached)
• Power supply in safety mode, 140V=80V. Power supply fails. No result when unsoldering line transformer and loading power supply with a 75W lamp. (+ extract of circuit diagram)
• Difficulties in tuning on channel. (extract of circuit diagram attached)
• Voltage slightly high. (+ extract of circuit diagram)
• Horizontal sychronisation is distorted. (picture attached)
• After installing the vertical ICs there are stripes in the top part of the picture. Electrolytic 3300uF is ok. (extract of circuit diagram attached)
• Picture takes 10 mins to appear. (part of circuit diagram displayed)
• Switches to standby (after start-up). (SBR - 66762 information)
• Predominance of one of the three colours (red, green or blue).
• Top of picture is non linear with teletext lines. (extract of circuit diagram attached)
• Vertical collapse. (extract of circuit diagram attached)
• When switching on, main supply reduces to about 24V and then no function.
• Processor for TRD4 control panel.
• No function, 142V is present but R3292 (680R) blows continuously. (service info for SBR -66762)
• Searches for channels continuously. (part of circuit diagram displayed)
• Raster IC defective after some time. (+ extract of circuit diagram)
• Distorted picture. (picture attached)
• Peak white bright band approx. 4" across screen. Then set dead. (+ extract of circuit diagram)
• Fine horizontal lines on picture, particularly during channel switch-over. Occasionally vertical sync. does not fit in with screen.
• Sparks on the yoke plug. High voltage is 1500Vpp instead of 1200Vpp. Working voltage 130V is ok. (part of circuit diagram displayed)
• Only noise the display does not light up.
• Dark screen. R3186 blows up. What is the value of R3186? (part of circuit diagram displayed)
• Picture becomes warped. Reacts to brightness and contrast. When there is white in the picture this runs in a line from the left to the right of the picture.
• Goes into standby each time channel is changed manually or by the RCU.
• Poor audio. only on one channel. (extract of circuit diagram attached)
• Poor vertical synchronisation. Intermittently flyback lines in lower quarter. (picture attached)
• Conversion from TRD to TRD-ECO.
• Horizontal output transistor defective. (part of circuit diagram displayed)
• Top of picture has non linear scan, ok when appliance has warmed up. (part of circuit diagram displayed)
• Picture bounces in upper picture third if a poor signal is present at aerial input. Vertical lines twist. (part of circuit diagram displayed)
• No synchronisation.
• No picture. Audio OK . (picture attached)
• Vertical waves when switching from TXT to normal picture.
• No start up, displays E3. No 13V. (+ extract of circuit diagram)
• No picture. after a few seconds. (with circuit diagram extract)
• No TXT with the CCT decoder system. (with circuit diagram extract)
• Bottom linearity faulty. (extract of circuit diagram attached)
• No RC functions. (+ extract of circuit diagram)
• BU504 blows after 30 mins. (picture attached)
• No brightness. No colour. intermittently.
• No start-up. Audible noise.
• Repeated failure of BU508A line output transistor. (part of circuit diagram displayed)
• Shakey picture. No sound on some channels. Appliance starts. (part of circuit diagram displayed)
• No picture just very bright raster at centre of screen. (extract of circuit diagram attached)
• No picture. Loud fizzling noise from line deflection. (extract of circuit diagram attached)
• 300V from power supply.
• PSU switches frequently to protection mode (also when lamp is connected). (with circuit diagram extract)
• Herringbone pattern on raster. High channels are not accepted when tuned.
• Switches to standby (intermittently). (with circuit diagram extract)
• No start-up. intermittently. Squealing noise. (extract of circuit diagram attached)
• Picture too large, E/W indented.
• Picture darkens (after disappearance of green bar) after tuning and storing channel in memory. No adjustment possible.
• No channel storing.
• Intermittently parallel stripes on one part of the screen. Shock sensitive.
• Poor picture. (+ extract of circuit diagram)
• Intermittently loses vertical sync. Black line slowly moving up and down picture. Picture and sound OK. (part of circuit diagram displayed)
• Dark picture, also by TXT/Scart. Colour OK. (picture attached)
• Hum in picture. Contrast dependent effect. (picture attached)
• TXT-replacement.(4822 212 21008T). (with circuit diagram extract)
• Very loud sound, cannot be adjusted. No display. (with circuit diagram extract)
• Teletext only shows a green notice "P100" running on the screen, or Teletext is displayed but out of sync.
• Intermittently dead. (+ extract of circuit diagram)
• No picture or teletext, RGB/status line at 2V. (with circuit diagram extract)
• No picture, no sound. Appliance squeaks when switching on then stops. BU508 of the line end stage is ok. Yellow capacitor has also already been changed. (part of circuit diagram displayed)
• Too little brightness after DIM command (CDI use). (with circuit diagram extract)
• No picture. Sound available. Intermittently picture appears for 1 sec.
• Vertical lock 1/3 of the way up the screen. (extract of circuit diagram attached)
• Horizontal collapse. after warm-up. No E/W correction. intermittently.
• No picture, only sound present. When appliance is switched off a white line appears.
• Pincushion distortion. (+ extract of circuit diagram)
• Distorted picture. Snow in picture. (with circuit diagram extract)
• Signal/sync/timebase drive problems.
• No sound or vision and E3 on the display. (with circuit diagram extract)
• Visible black, unsynchronised TXT klok.
• Hums and crackles. Sound comes from loudspeaker and chassis. Flashing LED.
• Snowy raster. (part of circuit diagram displayed)
• Picture overbright on left hand side with vertical lines.
• Occasionally picture runs through (line).
• The appliance gurgles occasionally. (part of circuit diagram displayed)
• TXT-lines in picture for three seconds at switch over. Then perfect picture. (extract of circuit diagram attached)
• Channel drifts briefly into UHF between approx channel 30 and 37.
• No sound or picture. Screen in the black level.
• High-voltage flash-over. (picture attached)
• The sound goes erratically to max. volume. (+ extract of circuit diagram)
• Picture bends at top and vibrates. (part of circuit diagram displayed) (66762 tips)
• Display shows functions which were not chosen. (+ extract of circuit diagram)
• Picture output IC defective after 2-3 weeks. (+ extract of circuit diagram)
• PSU is defective. (+ extract of circuit diagram)
• After it has been replaced line BU blows every 2 to 3 days. (with circuit diagram extract)
• No line drive. (extract of circuit diagram attached)
• Memory values for picture, sound and channels are lost. (part of circuit diagram displayed)
• Linearity fault in upper part of screen.
• Occasionally the channel memory or the preselector do not work.
• There is an occasional banging noise, the picture shakes. (picture attached)
• No audio. OK via SCART . (extract of circuit diagram attached)
• No adjustment of sound. (picture attached)
• The line end stage transistor 7162 heats up. The base and collector pulses are ok, the transistor blows. (picture attached)
• No vertical deflection. (picture attached) (66762 tip from SBR)
• No remote control operation on teletext version. (part of circuit diagram displayed) (66762 SBR repair tip)
• Safety test after repair.
• No display. No channel search. Picture OK . (part of circuit diagram displayed) (SBR - 66762 information)
• Insufficient horizontal and vertical picture aamplitude. Smoke from R3177. (+ extract of circuit diagram)
• No colour. IC-TDA3562 has been changed with no result. There must be 2-4V on pin 6 but there is only 0.4V. (part of circuit diagram displayed)
• Very faint raster. (with circuit diagram extract)
• Visible flyback lines and colour tints problems. (part of circuit diagram displayed)
• After switch on program display P1, then E1. No functions. (picture attached)
• Deflection BU fails after approx. 1-2 weeks.
• Test picture visible in the background in TXT mode. (extract of circuit diagram attached)
• Flashing picture when using RC. OK when operated manually. Reacts ok to vol, brightness and colour. Switches off when no. entered. Display lights briefly then switches to E3. Manual operation OK after switch off. No operation of RC. (part of circuit diagram displayed)
• Dark picture. at bottom (after a while). (picture attached)
• In the middle of the picture a stripe which is approx 15cm high appears over the entire picture width.
• Low audio. Distorted audio. (+ extract of circuit diagram)
• Channel loss at switch on after memorising channels. (+ extract of circuit diagram) (service info for SBR -66762)
• Switches to protection mode (after a few minutes). (part of circuit diagram displayed)
• Raster shifted upward. Picture OK.
• Stereo problems; switching from mono/stereo. Crackling sounds. (part of circuit diagram displayed)
• Switches to standby (after a few minutes). (extract of circuit diagram attached)
• The picture appears then disappears. T26 after D6106, varies from 25 to 10Vcc. (picture attached)
• TXT lines at top of picture. (extract of circuit diagram attached)
• No picture. intermittently. (with circuit diagram extract)
• E/W adjustment.
• No picture. (part of circuit diagram displayed)
• Power supply trips at switch on, producing a fading whistle. (extract of circuit diagram attached)
• Poor colour (when cold). (extract of circuit diagram attached)
• No E/W correction. (extract of circuit diagram attached)
• Brightness and or contrast don't work or don't work properly.
• PSU hiccups.
• Output signal is occasionally O/C when shown on oscilloscope.
• After operating for 12-14 days, the line-BU blows. (part of circuit diagram displayed)
• Reduced horizontal size. (part of circuit diagram displayed)
• One colour missing (intermittently). (+ extract of circuit diagram)
• Channels "up and down" only work on the RC.
• HT transistor blows continuously (short circuit).
• Black streaky lines after a few mins. Completely dark picture after approx 5 mins. (extract of circuit diagram attached)
• East/west correction is defective or the power supply gurgles. (picture attached)
• Lines in picture. on the left. (part of circuit diagram displayed)
• 2R2 resistor always blows. (with circuit diagram extract)
• Switches off by itself. (66762 tip from SBR)
• Normal values for brightness, volume and colour saturation cannot be stored. (SBR - 66762 information)
• No line osc. (extract of circuit diagram attached)
• Video and bottom half of scan are missing with extremely bright raster. (extract of circuit diagram attached) (66762 tips)
• No function or display when first switched on. Starts up OK at second attempt. (part of circuit diagram displayed)
• After about 7 days the vertical endstage IC TDA3650 blows again. All the voltages are ok. (picture attached)
• Blanking fails, lines run through and sound is . (part of circuit diagram displayed)
• Distorted picture at high white proportion. (picture attached)
• No raster. (picture attached)
• Mains switch and speech-music switch. (66762 tips)
• Occasionally poor frame sync (line).
• No start-up. (picture attached)
• Front display corrupt, all segments lit to a varying degree. (with circuit diagram extract)
• Goes into standby with E3 and a few seconds later goes to function. (extract of circuit diagram attached)
• Power supply cuts out suddenly and whistles. Ok if line BU removed. (part of circuit diagram displayed)
• Poor focus. (extract of circuit diagram attached)
• Pincushion effect on vertical straight lines. (+ extract of circuit diagram)
• When switching channels, TV stops for 1 sec.
• When calling up TXT page, 2nd digit is incorrectly reproduced, yet correct page appears.
• The vertical lines are ribbed, especially in the test picture. (with circuit diagram extract)
• Hum in power supply audible. (with circuit diagram extract)
• No picture, no sound, power supply squeaks because thyristor 6171 conducts. By temporarily removing the thyrister, measure the 141V for 5 seconds until 150V. Afterwards the appliance plays fine.
• No picture just loud trumpeting noise. (picture attached)
• Vertical foldover at top. (picture attached)
• Excessive brightness. (extract of circuit diagram attached)
• Only half of picture visible. (extract of circuit diagram attached)
• Rolling picture for 5 secs after switching from VHF to UHF. Poor raster synchronisation.
• Sound becomes lower after switch on. (extract of circuit diagram attached)
• Power supply whistling and the BU508 is S/C. (picture attached)
• Hums and crackling. LED flashes. (part of circuit diagram displayed)
• Line transformer installation.
• Switches on, but no EHT available. Channel number disappears and then "E1" is displayed.
• Lightning flash; K40 and KT4 are very sensitive to induction voltage. (+ extract of circuit diagram)
• Predominance of blue, faint blue flyback lines visible. (extract of circuit diagram attached)
• Noise line on one side of screen. (+ extract of circuit diagram)
• No startup. Banging noise audible.
• Muted audio. intermittently.
• Vertical foldover at bottom. (+ extract of circuit diagram)
• No E/W correction. at bottom. (extract of circuit diagram attached)
• All presettings disappear after turning on the appliance.
• No image or sound after start up. Does not lock channels. After 1-2 minutes it comes back to normal. (+ extract of circuit diagram)
• Only half of picture and there is a lot of light. (extract of circuit diagram attached)
• Screen compressed at the bottom and very quick vertical drift of picture. (+ extract of circuit diagram)
• Poor vertical synchronisation. (part of circuit diagram displayed)
• Destroys line output transistors. (picture attached)
• Erratic functions. (part of circuit diagram displayed)
• Sometimes when switched on set gives a squealing noise and no sound or vision. (picture attached)
• Very bright raster in the centre of the screen. No video signal content. Top and bottom third of screen are dark. (with circuit diagram extract)
• Lines at the top of the picture depending on the picture content. (+ extract of circuit diagram) (66762 tips)
• Line oscillator chip failure after an EHT flashover. (with circuit diagram extract)
• TV switches to standby after approx 30 mins. E3 in display. (extract of circuit diagram attached)
• No line drive to line output transistor (with circuit diagram extract)
• Upper vertical linearity defective. Flyback lines on TXT broadcasts. (picture attached)
• Focus control replacement. (picture attached)
• UPD8049PC SAA063 has been changed. The display shows 80. (SBR - 66762 information)
• Hum in picture. Error disappears after approx10 mins operation.
• Line tearing. at top. (+ extract of circuit diagram)
• Poor horizontal fringy picture. (extract of circuit diagram attached)
• East-west raster correction fault. (part of circuit diagram displayed) (service info for SBR -66762)
• Hiccups when changing channels. (extract of circuit diagram attached) (service info for SBR -66762)
• Power supply BU blows. (picture attached)
• Type of line transistor 7162. (+ extract of circuit diagram)
• Sometimes no vertical deflection; random cramping at top of picture. (picture attached)
• Intermittent no signals, then will rest to CH1 with volume high.
• Flyback lines in TXT broadcasts. Upper vertical linearity is defective. (+ extract of circuit diagram)
• Small picture. Picture height and audio volume vary according to picture content. (extract of circuit diagram attached)
• Teletext only shows "P100" flying all over the screen out of sync, or shows a teletext page out of sync. (SBR - 66762 information)
• Dark picture. Audio OK . (part of circuit diagram displayed)
• No picture. in UHF. (picture attached)
• Doesn't switch to standby. Standby LED OK, no display, but picture and sound remains.
• Starts with E1 and intense fizzling sound. No picture or sound. (extract of circuit diagram attached)
• Slow start-up. (picture attached)
• Red picture. (part of circuit diagram displayed)
• Blank raster. Audio OK . (extract of circuit diagram attached)
• Coloured spots in flat square picture tubes.
• No vertical synchronisation. (with circuit diagram extract)
• No colour. Audio and picture OK . (picture attached)
• Focus problems. Shuts down (after a few minutes). (extract of circuit diagram attached)
• No colour. (+ extract of circuit diagram)
• Noise in picture. (part of circuit diagram displayed)
• Changing channel. (part of circuit diagram displayed)
• No MONO audio. STEREO OK .
• Arcing. (part of circuit diagram displayed)
• Flyback lines. at top. (+ extract of circuit diagram)
• Defective after lightning. (extract of circuit diagram attached)
• Low contrast. in TXT. (+ extract of circuit diagram)
• Rolling picture and warps vertically. (with circuit diagram extract)
• Line BU goes S/C every fortnight. (part of circuit diagram displayed)
• Line tearing in upper third of picture after longer operation. (+ extract of circuit diagram)
• No function, no sound, no display and no HT. Only a faint switch-on thud in speakers.
• No function, the 141V power supply voltage is only approx 80V. (with circuit diagram extract)
• Intermittent loss of colour and picture sways. (+ extract of circuit diagram)
• Appliance fails. BU508A will become defective and displays E-3. Power supply squeaks. (+ extract of circuit diagram)
• Poor RC sensitivity. (part of circuit diagram displayed)
• Set does not go to standby although the LED is lit up. (with circuit diagram extract)
• Picture shifts and jitters depending on picture content.
• Set intermittent dead, when faulty E1 displayed. (extract of circuit diagram attached)
• Trapezium ininformation. (picture attached)
• Picture unstable on certain stations when cold. Also TXT horizontally unstable.
• The display reacts but the tuning does not. (service info for SBR -66762)
• Lines in picture. at top . (part of circuit diagram displayed)
• Vertical waves on both sides of picture. Unstable picture. (part of circuit diagram displayed)
• Picture shifts downwards and then comes up again after a few minutes, picture is then o.k., but is round. (+ extract of circuit diagram)
• No function, stand-by connection has voltage.
• Doesn't lock in on channels or stops but tuned off. (picture attached)
• Sound whistles, no bass.
• Inverted E-E display, no picture, no sound. (part of circuit diagram displayed)
• Appliance functions only when warm. It fails intermittently when cold.
• Vertical IC defective after mounting. (part of circuit diagram displayed)
• PSU whistles. Line output transistor BU508 fails (S/C).
• The appliance may cut out occasionally and then there is no more picture or sound.
• Whistling. No error display.
• Flyback lines. at top (in TXT). (+ extract of circuit diagram)
• Switches to program 1, but no function. Whistles.
• No tuning, channel no etc. with the standby LED permanently on (sets with 1021 VST module).
• Occasionally noise in TV (like short attempts to start up), picture width variation and display which disappears. (extract of circuit diagram attached)
• No tuning. (part of circuit diagram displayed)
• Instable picture. Picture height and picture width change depending on the volume. Picture folds over at the top.
• Horizontal lines (TXT data) on the top part of the picture. (extract of circuit diagram attached)
• Frequency divider 4822 212 21226.
• Picture shakes. at top (intermittently). (extract of circuit diagram attached)
• After switch-on no picture and sound, 88 in display. When mains switch pressed, snow. TXT and stereo LED lights. (SBR - 66762 information)
• After switching on occasional crackling from the speakers. Picture content therefore fails for a short time. Somehow there is still something to recognise on the screen. Line deflection must be present. (+ extract of circuit diagram) (66762 tip from SBR)
• No audio. Picture OK . (with circuit diagram extract)
• Incorrect TXT, ie. instead of a 6, an 8 will appear, or the appliance goes back to regular picture position. (with circuit diagram extract)
• EHT arcing.
• Line output transistor (BU508) defective. (+ extract of circuit diagram)
• Whistling noise from FBT. (picture attached)
• No horizontal deflection. (picture attached)
• Vertical line. (picture attached)
• Channel indicators permanently display 88. Hissing from EHT capacitor. (part of circuit diagram displayed)
• Memory loss. (66762 tip from SBR)
• Cycles on/off. after a few minutes.
• The sound contains noise, no low pitched sound. (picture attached)
• No REC and PB. PSU hiccups. (with circuit diagram extract)
• Flyback lines. in PB. (+ extract of circuit diagram)
• Misty picture. (+ extract of circuit diagram)
• Intermittent or no vertical linearity. (extract of circuit diagram attached)
• East/west code. The sound disappears, the picture is vague and the appliance constantly arches stations.
• E/W convex.
• Vertical problems. (picture attached)
• Repeated power supply failure. (+ extract of circuit diagram)
• Flashover then weak contrast. (picture attached)
• No function. No start up. (SOPS, IV-F-3). (extract of circuit diagram attached) (66762 SBR repair tip)
• No TXT the indication light lights up. (+ extract of circuit diagram) (66762 tip from SBR)
• Poor E/W. Centre of picture is pulled inwards. (picture attached)
• Switches to protection mode (after a while). (picture attached)
• Picture runs from left to right, especially on bright pictures.
• Occasionally picture darkens and at the same time raster disappears. (part of circuit diagram displayed)
• Tuning drifts. Snowy raster. (part of circuit diagram displayed)
• No LCD on front panel. (picture attached)
• Blanking valency in picture (black bar in 3/4 of picture). (picture attached)
• No picture. intermittently. HV OK. . (with circuit diagram extract)
• V resistor 3186 (2R2/raster unit) burns at switch on. (with circuit diagram extract)
• Picture has shifted inwards in lower picture section. (+ extract of circuit diagram)
• Picture jitters on the upper picture edge. Ok after 5 mins. (picture attached)
• The TXT quivers when a V6100 tuner is connected. (with circuit diagram extract)
• Reduced vertical size. (part of circuit diagram displayed)
• No picture. Display OK .
• The station memory loses the station programming after about 3 weeks.
• C/P button on the front control does not function.
• Poor IF gain. (+ extract of circuit diagram)
• Black screen. Audio OK . (with circuit diagram extract)
• Bright white line in picture, no sound. (part of circuit diagram displayed)
• Low audio. (extract of circuit diagram attached)
• The focusing pot. blows. (+ extract of circuit diagram)
• E/W fault. (+ extract of circuit diagram)
• Line output stage transistor BU508 fails approx every 6 days. (picture attached)
• Intermittent loss of sound and vision, with just snow and no channel display. (picture attached)
• Poor VCR line synchronisation . (picture attached)
• Horizontal jitter. (+ extract of circuit diagram)
• Switches to standby. (part of circuit diagram displayed)
• Red picture (intermittently). (part of circuit diagram displayed)
• Fuse 1101 fails continuously. (part of circuit diagram displayed)
• All LCD segments are lit. LED flashes abnormally. (+ extract of circuit diagram)
• Picture synchronization in the top third of the screen. (extract of circuit diagram attached)
• Muted audio. after a while. (extract of circuit diagram attached)
• Cycles on/off. (66762 SBR repair tip)
• Brightness and colour saturation influence each other. (with circuit diagram extract)
• No TXT (intermittently). (+ extract of circuit diagram) (SBR - 66762 information)
• Picture is off tune in PB.
• Temporary crackling from both speakers, then picture fails for a short time. Unfortunately fault no longer occurs at the moment. (picture attached)
• No picture. Green and pink raster at the top. (picture attached)
• "88" on the display. No picture. No sound. (+ extract of circuit diagram)
• Blank raster. (with circuit diagram extract)
• Line output transistor fails repeatedly. (service info for SBR -66762)
• Transistors TR7131, TR7122 and TR7123 blown. (part of circuit diagram displayed)
• No raster. Audio OK . (with circuit diagram extract) (SBR - 66762 information)
• No power supply regulation. (picture attached)
• Vertical fault. Picture is approx 20cm high. Bright background with flyback lines.
• Faint raster. (with circuit diagram extract)
• No start-up (when cold). (extract of circuit diagram attached)
• TV starts up but EHT is missing. Programme number disappears, then "E1" appears.
• No picture on teletext. (picture attached)
• Spontaneous flash over in focus spark gap.
• No functions. at start-up. Whistling. at switch-off.
• East/West fault. (service info for SBR -66762)
• Blank screen (intermittently). (with circuit diagram extract)
• No STEREO.
• E/W failure,temperature sensitive. (+ extract of circuit diagram)
• Horizontal deflection is poor. (part of circuit diagram displayed)
• No TXT. (part of circuit diagram displayed)
• No colour when the appliance is switched on (cannot be programmed through memory), picture is dark.
• The line oscillator is unstable, the picture shakes. (part of circuit diagram displayed)
• PSU and HV unit switch on, but no display and standby LED lights. No linearity.
• Unstable picture. (picture attached)
• The picture is too small. The power supply is too weak. (part of circuit diagram displayed)
• No picture or sound after spark flashover in the HS cable. (part of circuit diagram displayed)
• Intermittently picture blanks for approx 1 sec. (with circuit diagram extract)
• Only starts up after pressing ON/OFF switch a few times. (extract of circuit diagram attached)
• Start up from standby after 2 secs. (extract of circuit diagram attached)
• Black stripes over the whole screen.
• Picture intermittently goes to negative or is shifted laterally.
• Bright picture. Flyback lines.
• Dead. No line drive. (+ extract of circuit diagram)
• Vertical blanking interval still visible in picture after program switch over. (with circuit diagram extract) (service info for SBR -66762)
• Whistling from PSU. (extract of circuit diagram attached) (66762 tips)
• Squealing noise. (picture attached)
• Too much brilliance of one cathode of picture tube.
• Unknown indication in the display, no function.
• Picture lacks width after 5mins from start-up. Displays E3. (extract of circuit diagram attached)
• Picture is erased at 8-10 sec intervals. (+ extract of circuit diagram)
• Picture vibrates horizontally. Broken or intermittently double bar. (+ extract of circuit diagram)
• Replacing line output transistor BU508. (SBR - 66762 information)
• Tripping. (with circuit diagram extract)
• Error codes. (with circuit diagram extract)
• Approx 5cm distortion on top of picture with any station, in cold conditions. (extract of circuit diagram attached)
• Burn up in E/W correction circuit (R3170, R3175). (picture attached)
• No synchronisation. intermittently. Picture shakes. (picture attached) (66762 tip from SBR)
• The power supply goes to protection circuit. (extract of circuit diagram attached)
• Picture is distorted on top. Flyback lines. Picture changes according to picture content. (with circuit diagram extract)
• Dead (intermittently). Squealing from PSU. (+ extract of circuit diagram)
• Flyback lines. when changing channels. (picture attached)
• Poor closure of function door.
• Picture-sound-display is intermittent. (extract of circuit diagram attached)
• LED display goes off after a few minutes. If the channel is changed however, either using the remote control or the buttons on the set, display return for a few minutes. (service info for SBR -66762)
• Voltages measured on pins IC TDA3650.
• Rectification of IM 84VK049. (picture attached)
• Picture OK but display only shows signs.
• Line deflection BU508V blows.
• Picture width twitches. Beam current dependent. (extract of circuit diagram attached)
• Switches to standby. Motorboating. Switches on and off. (Non-SOPS, IV-B-3) (part of circuit diagram displayed)
• Pictures bows at edges. Width can be adjusted. (+ extract of circuit diagram) (66762 tip from SBR)
• Horizontal lines across the picture, sometimes picture content in the middle of the screen disappears (then black bars across the picture). (extract of circuit diagram attached)
• At switch on there is a loud trumpeting and no picture. (picture attached)
• There is an occasional beating noise.
• Switches to protection mode (intermittently). (with circuit diagram extract)
• Whines loudly at switch on and will not start up. (part of circuit diagram displayed)
• The TXT info appears at top of picture when cold. OK after 5 mins. (extract of circuit diagram attached)
• Loses frame correction slowly. (+ extract of circuit diagram)
• Squealing from PSU. (picture attached)
• Power supply BU S/C. (extract of circuit diagram attached)
• Picture horizontally unstable. (extract of circuit diagram attached)
• Muted audio. (part of circuit diagram displayed)
• Picture collapses in RF every 2 seconds. Picture OK via scart. (66762 tips)
• Poor E/W adjustment with changes in contrast.
• No sound if transmission is "mono". There is also no sound during stereo-transmission if the mono button is pressed. Otherwise stereo transmission is fine. (part of circuit diagram displayed)
• Interference on channel 2 with TRD 4 system. (extract of circuit diagram attached)
• Very loud sound, not adjustable. No display.
• No audio. (picture attached)
• Does not stop at S channels during station search. Appliance should be suited to do so.
• Jitter with VCR on freeze frame. (extract of circuit diagram attached)
• No picture (intermittently). (+ extract of circuit diagram)
• Rope effect on the right hand side of the picture. (extract of circuit diagram attached)
• Normal off air picture is fine but teletext is very dim with hardly any contrast. (picture attached)
• Switches off and on spontaneously, particularly when putting on a video film and when switching over.
• No picture at start up. Channel storage ok. Sound, colour, contrast and brightness balance are not stored.
• TV picture slightly visible when in TXT mode. (extract of circuit diagram attached)
• Vertical linearity defective. (part of circuit diagram displayed)
• The power supply unit shuts off after some time and squeaks. (picture attached)
• The appliance often becomes intermittent when switched on. (with circuit diagram extract)
• Every 2-3 days TR7162 (BU508V) is destroyed.
• Frame foldover & text interference at top of screen. (part of circuit diagram displayed)
• BU826 and main fuse are defective. When starting after replacement, the power supply hiccups once and is defective again. (+ extract of circuit diagram)
• Faint white streaks above the picture. (picture attached)
• How to store personal preferences (PP).
• No start up. PSU goes to protection circuit. (extract of circuit diagram attached)
• Blank raster, turning up A1 control shows frame collapse. (extract of circuit diagram attached)
• Muted audio. Picture OK .
• No picture. When switched on, display shows 5 (no bottom segment) and EXT4. E3 after a few secs. (part of circuit diagram displayed)
• In display all segments lit.
• Coloured lines and sloping picture. (part of circuit diagram displayed)
• Beam limiter problem. (+ extract of circuit diagram)
• Code numbers for picture tube prints.
• Critical adjustment with user controls. Sometimes it works properly when tapping on cabinet.
• No start up and humming.
• The colour shimmers or fades. (+ extract of circuit diagram)
• Repeat failure of TDA3650 & 26V supply. (part of circuit diagram displayed)
• Starts up gradually. (+ extract of circuit diagram)
• Adjustment.
• Switches to standby after a few hours. Can be switched on again but fault reoccurs. Interim period becomes shorter. (66762 tip from SBR)
• Wide white bar in the picture, no reception. (with circuit diagram extract) (66762 tip from SBR)
• No functions. (extract of circuit diagram attached)
• E/W fault. Trips. (with circuit diagram extract)
• The picture is much too wide, east/west does not control. (picture attached)
• The picture is nearly or completely invisible if a CDI player is connected on K40 full SCART (RGB) and the screen dimmer is activated. (part of circuit diagram displayed) (66762 SBR repair tip)
• Picture rolls. (picture attached)
• Non linear picture. (part of circuit diagram displayed)
• The appliance cuts out and E3 in the display then everything becomes normal again and after 30 secs the appliance cuts out again. (with circuit diagram extract)
• Vertical sync remains occasionally halfway down the frame although it locks correctly. (with circuit diagram extract)
• Volume too high. Excessive colour and incorrect brightness at switch on. (66762 SBR repair tip)
• Dark picture (intermittently).
• Failure of field output chip TDA3650. (part of circuit diagram displayed) (SBR - 66762 information)
• PSU and line transformer chirp. (extract of circuit diagram attached)
• No horizontal synchronisation. (+ extract of circuit diagram)
• Dim picture. in TXT. No contrast. in TXT. (with circuit diagram extract)
• Dark picture. (with circuit diagram extract)
• Occasionally thin white lines, picture bounce at the side and top edge.
• TDA3650 fails after one week. (+ extract of circuit diagram)
• Blurred screen. Shifted tuning. Unable to adjust with fine tuning. Sometimes tuning doesn't lock in on stations.
• Field flyback lines visible for a second or so when channel changed. They then disappeared. (part of circuit diagram displayed)
• Horizontal power stage squeaks.
• Tuning voltage blocked on 33V or 0V (TRD sets).
• All memory-cells on 56. (66762 tip from SBR)
• K9/K11 band switch.
• Problems with the vertical deflection, picture folds at the top edge. (picture attached)
• Blows components (intermittently). (with circuit diagram extract)
• Stuck in standby. (picture attached)
• Total loss of memory immediately after CTV is switched off (brightness, colour, contrast, sound and channels). (picture attached)
• Line pulling/frame jitter. (extract of circuit diagram attached)
• The sound cuts out occasionally. Only FM noise is heard through the loud speakers. (extract of circuit diagram attached)
• No tuning. only on certain channels.
• Green lines. (picture attached)
• No red. (extract of circuit diagram attached)
• White lines, no focus, too much brightness. 15cm in the middle of the picture. (extract of circuit diagram attached)
• Excessive horizontal size. at top. (part of circuit diagram displayed)