688596 / SBR [TV]

• Switches to protection mode (after a while). (part of circuit diagram displayed)
• Very faint raster. (picture attached)
• 2R2 resistor always blows. (part of circuit diagram displayed)
• Jitter with VCR on freeze frame. (extract of circuit diagram attached) (688596 SBR repair tip)
• Blank raster. (with circuit diagram extract)
• Snowy raster. (picture attached)
• The power supply goes to protection circuit. (with circuit diagram extract)
• Too much brilliance of one cathode of picture tube.
• No picture. Audio OK . (with circuit diagram extract)
• Line output transistor (BU508) defective. (+ extract of circuit diagram)
• E/W fault. Trips. (extract of circuit diagram attached)
• Whistling noise from FBT. (part of circuit diagram displayed)
• Difficulties in tuning on channel. (extract of circuit diagram attached)
• Vertical line. (with circuit diagram extract)
• No picture, only sound present. When appliance is switched off a white line appears. (688596 tip from SBR)
• Fuse 1101 fails continuously. (with circuit diagram extract)
• Vertical collapse. (extract of circuit diagram attached)
• Very loud sound, cannot be adjusted. No display. (extract of circuit diagram attached)
• The colour shimmers or fades. (+ extract of circuit diagram)
• Visible black, unsynchronised TXT klok.
• Poor audio. only on one channel. (+ extract of circuit diagram)
• No brightness. No colour. intermittently.
• No vertical deflection. (part of circuit diagram displayed)
• Only half of picture and there is a lot of light. (+ extract of circuit diagram)
• Poor picture. (with circuit diagram extract)
• Rolling picture for 5 secs after switching from VHF to UHF. Poor raster synchronisation.
• There is an occasional banging noise, the picture shakes. (with circuit diagram extract)
• East/west correction is defective or the power supply gurgles. (picture attached)
• Picture lacks width after 5mins from start-up. Displays E3. (picture attached)
• Pincushion effect on vertical straight lines. (part of circuit diagram displayed) (688596 SBR repair tip)
• No RC functions. (+ extract of circuit diagram)
• Flyback lines in TXT broadcasts. Upper vertical linearity is defective. (extract of circuit diagram attached)
• Picture shifts downwards and then comes up again after a few minutes, picture is then o.k., but is round. (part of circuit diagram displayed)
• Power supply in safety mode, 140V=80V. Power supply fails. No result when unsoldering line transformer and loading power supply with a 75W lamp. (with circuit diagram extract)
• Blank screen (intermittently). (with circuit diagram extract)
• Herringone pattern and upper channels are not accepted when tuning.
• Starts up gradually. (with circuit diagram extract)
• Teletext only shows "P100" flying all over the screen out of sync, or shows a teletext page out of sync.
• Flyback lines. at top (in TXT). (+ extract of circuit diagram)
• Flyback lines. in PB. (+ extract of circuit diagram)
• Sometimes no vertical deflection; random cramping at top of picture. (picture attached)
• No power supply regulation. (extract of circuit diagram attached)
• Channel indicators permanently display 88. Hissing from EHT capacitor. (with circuit diagram extract)
• No synchronisation. intermittently. Picture shakes. (picture attached)
• East/West fault.
• Poor E/W adjustment with changes in contrast.
• In display all segments lit.
• Line deflection BU508V blows. (688596 tips)
• Line tearing in upper third of picture after longer operation. (picture attached)
• Red picture. (extract of circuit diagram attached)
• Reduced vertical size. (with circuit diagram extract)
• No line osc. (+ extract of circuit diagram)
• After switch on program display P1, then E1. No functions. (+ extract of circuit diagram)
• Failure of field output chip TDA3650. (part of circuit diagram displayed)
• Linearity fault in upper part of screen.
• No colour. IC-TDA3562 has been changed with no result. There must be 2-4V on pin 6 but there is only 0.4V. (extract of circuit diagram attached)
• No sound or vision and E3 on the display. (with circuit diagram extract)
• Sparks on the yoke plug. High voltage is 1500Vpp instead of 1200Vpp. Working voltage 130V is ok. (picture attached)
• Muted audio. intermittently.
• Loses frame correction slowly. (extract of circuit diagram attached)
• Poor vertical synchronisation. Intermittently flyback lines in lower quarter. (picture attached)
• Muted audio. (picture attached)
• No picture. (part of circuit diagram displayed) (SBR - 688596 information)
• Normal values for brightness, volume and colour saturation cannot be stored.
• The station memory loses the station programming after about 3 weeks. (SBR - 688596 information)
• Picture has shifted inwards in lower picture section. (part of circuit diagram displayed)
• Mains switch and speech-music switch.
• Misty picture. (extract of circuit diagram attached)
• There is an occasional beating noise.
• All memory-cells on 56.
• Small picture. Picture height and audio volume vary according to picture content. (part of circuit diagram displayed) (service info for SBR -688596)
• Horizontal collapse. after warm-up. No E/W correction. intermittently.
• Poor closure of function door.
• Volume too high. Excessive colour and incorrect brightness at switch on.
• 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.
• The appliance often becomes intermittent when switched on. (part of circuit diagram displayed) (SBR - 688596 information)
• Horizontal power stage squeaks.
• Line output transistor fails repeatedly.
• No picture. Loud fizzling noise from line deflection. (picture attached)
• Line BU goes S/C every fortnight. (part of circuit diagram displayed)
• The power supply unit shuts off after some time and squeaks. (part of circuit diagram displayed)
• No start-up (when cold). (with circuit diagram extract)
• Picture collapses in RF every 2 seconds. Picture OK via scart.
• Set does not go to standby although the LED is lit up. (picture attached) (688596 SBR repair tip)
• No TXT the indication light lights up. (extract of circuit diagram attached)
• Bright white line in picture, no sound. (picture attached)
• Intermittent or no vertical linearity. (picture attached)
• Picture is erased at 8-10 sec intervals. (part of circuit diagram displayed)
• Occasionally picture darkens and at the same time raster disappears. (+ extract of circuit diagram)
• Switches on, but no EHT available. Channel number disappears and then "E1" is displayed.
• High-voltage flash-over. (part of circuit diagram displayed)
• Frame foldover & text interference at top of screen. (with circuit diagram extract)
• Instable picture. Picture height and picture width change depending on the volume. Picture folds over at the top.
• Whistling. No error display.
• Noise in picture. (picture attached)
• TXT lines at top of picture. (picture attached) (SBR - 688596 information)
• Occasionally noise in TV (like short attempts to start up), picture width variation and display which disappears. (+ extract of circuit diagram)
• EHT arcing.
• Peak white bright band approx. 4" across screen. Then set dead. (+ extract of circuit diagram)
• Normal off air picture is fine but teletext is very dim with hardly any contrast. (part of circuit diagram displayed)
• Searches for channels continuously. (picture attached)
• E/W convex.
• Flyback lines. at top. (picture attached)
• Repeat failure of TDA3650 & 26V supply. (picture attached)
• Top of picture is non linear with teletext lines. (with circuit diagram extract)
• Picture too large, E/W indented.
• Intermittent loss of sound and vision, with just snow and no channel display. (part of circuit diagram displayed)
• BU508 fails continuously. (extract of circuit diagram attached)
• TV switches to standby after approx 30 mins. E3 in display. (+ extract of circuit diagram)
• Every 2-3 days TR7162 (BU508V) is destroyed. (688596 SBR repair tip)
• Interference on channel 2 with TRD 4 system. (with circuit diagram extract)
• No start up and humming.
• Unknown indication in the display, no function.
• Dark screen. R3186 blows up. What is the value of R3186? (picture attached)
• Problems with the vertical deflection, picture folds at the top edge. (+ extract of circuit diagram) (SBR - 688596 information)
• Switches to standby (after start-up).
• Line oscillator chip failure after an EHT flashover. (with circuit diagram extract)
• No start-up. intermittently. Squealing noise. (part of circuit diagram displayed)
• Brightness and or contrast don't work or don't work properly.
• Faint white streaks above the picture. (with circuit diagram extract) (688596 SBR repair tip)
• Memory loss.
• E/W fault. (extract of circuit diagram attached)
• No picture. after a few seconds. (part of circuit diagram displayed)
• Test picture visible in the background in TXT mode. (part of circuit diagram displayed)
• Picture bends at top and vibrates. (+ extract of circuit diagram)
• Picture width twitches. Beam current dependent. (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. (extract of circuit diagram attached)
• Memory values for picture, sound and channels are lost. (with circuit diagram extract)
• Coloured lines and sloping picture. (with circuit diagram extract) (688596 tips)
• Cycles on/off.
• Appliance fails. BU508A will become defective and displays E-3. Power supply squeaks. (+ extract of circuit diagram)
• Hum in power supply audible. (picture attached) (SBR - 688596 information)
• BU504 blows after 30 mins. (part of circuit diagram displayed)
• No picture (intermittently). (extract of circuit diagram attached)
• Lines at the top of the picture depending on the picture content. (extract of circuit diagram attached)
• PSU and line transformer chirp. (extract of circuit diagram attached)
• Vertical sync remains occasionally halfway down the frame although it locks correctly. (picture attached)
• Occasionally poor frame sync (line).
• Hums and crackles. Sound comes from loudspeaker and chassis. Flashing LED.
• Picture takes 10 mins to appear. (part of circuit diagram displayed)
• Destroys line output transistors. (with circuit diagram extract)
• No picture on teletext. (extract of circuit diagram attached)
• Line tearing. at top. (with circuit diagram extract)
• Inverted E-E display, no picture, no sound. (picture attached)
• TV starts up but EHT is missing. Programme number disappears, then "E1" appears.
• The picture appears then disappears. T26 after D6106, varies from 25 to 10Vcc. (part of circuit diagram displayed)
• Repeated power supply failure. (picture attached)
• Muted audio. Picture OK .
• Horizontal jitter. (extract of circuit diagram attached)
• Screen compressed at the bottom and very quick vertical drift of picture. (with circuit diagram extract) (688596 SBR repair tip)
• Lightning flash; K40 and KT4 are very sensitive to induction voltage. (with circuit diagram extract)
• TV picture slightly visible when in TXT mode. (extract of circuit diagram attached)
• Red picture (intermittently). (with circuit diagram extract)
• Picture vibrates horizontally. Broken or intermittently double bar. (with circuit diagram extract) (688596 tips)
• Dark picture. Audio OK . (extract of circuit diagram attached)
• Picture OK but display only shows signs.
• No tuning, channel no etc. with the standby LED permanently on (sets with 1021 VST module). (service info for SBR -688596)
• 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. (picture attached)
• No horizontal deflection. (part of circuit diagram displayed)
• Adjustment.
• Picture-sound-display is intermittent. (part of circuit diagram displayed)
• Rope effect on the right hand side of the picture. (extract of circuit diagram attached) (SBR - 688596 information)
• No colour. Audio and picture OK . (+ extract of circuit diagram)
• Horizontal output transistor defective. (part of circuit diagram displayed)
• TXT-lines in picture for three seconds at switch over. Then perfect picture. (extract of circuit diagram attached)
• C/P button on the front control does not function.
• On cable reception, stations cannot be tuned or the stations wander off.
• No horizontal synchronisation. (part of circuit diagram displayed)
• The appliance may cut out occasionally and then there is no more picture or sound.
• The TXT quivers when a V6100 tuner is connected. (extract of circuit diagram attached)
• Tripping. (extract of circuit diagram attached)
• Doesn't lock in on channels or stops but tuned off. (picture attached)
• 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. (extract of circuit diagram attached) (688596 tips)
• Distorted picture. Snow in picture. (picture attached)
• Occasionally picture runs through (line).
• Pincushion distortion. (picture attached)
• The sound cuts out occasionally. Only FM noise is heard through the loud speakers. (with circuit diagram extract)
• Does not stop at S channels during station search. Appliance should be suited to do so.
• Low audio. (with circuit diagram extract)
• Switches to standby (intermittently). (part of circuit diagram displayed)
• The TXT info appears at top of picture when cold. OK after 5 mins. (extract of circuit diagram attached)
• Code numbers for picture tube prints.
• Intermittent no signals, then will rest to CH1 with volume high.
• 300V from power supply.
• When switching on, main supply reduces to about 24V and then no function.
• No function, 142V is present but R3292 (680R) blows continuously.
• Blanking of the raster, starting at bottom of the picture. (part of circuit diagram displayed)
• Tuning voltage blocked on 33V or 0V (TRD sets).
• No adjustment of sound. (picture attached)
• Type of line transistor 7162. (part of circuit diagram displayed)
• Picture shakes. at top (intermittently). (extract of circuit diagram attached)
• Raster shifted upward. Picture OK.
• UPD8049PC SAA063 has been changed. The display shows 80.
• Picture overbright on left hand side with vertical lines.
• East-west raster correction fault. (+ extract of circuit diagram) (688596 tip from SBR)
• Vertical blanking interval still visible in picture after program switch over. (part of circuit diagram displayed)
• Intermittently loses vertical sync. Black line slowly moving up and down picture. Picture and sound OK. (+ extract of circuit diagram)
• Only noise the display does not light up.
• Start up from standby after 2 secs. (extract of circuit diagram attached)
• Channel drifts briefly into UHF between approx channel 30 and 37.
• No picture. Display OK .
• Black streaky lines after a few mins. Completely dark picture after approx 5 mins. (extract of circuit diagram attached)
• Picture unstable on certain stations when cold. Also TXT horizontally unstable.
• All LCD segments are lit. LED flashes abnormally. (+ extract of circuit diagram)
• Vertical foldover at bottom. (extract of circuit diagram attached)
• Hum in picture. Contrast dependent effect. (+ extract of circuit diagram)
• After it has been replaced line BU blows every 2 to 3 days. (part of circuit diagram displayed)
• Switches to protection mode (after a few minutes). (with circuit diagram extract)
• Raster IC defective after some time. (+ extract of circuit diagram)
• No colour. (+ extract of circuit diagram)
• At switch on there is a loud trumpeting and no picture. (picture attached)
• Transistors TR7131, TR7122 and TR7123 blown. (with circuit diagram extract)
• The sound goes erratically to max. volume. (with circuit diagram extract)
• No function, stand-by connection has voltage.
• No line drive to line output transistor (picture attached)
• Teletext only shows a green notice "P100" running on the screen, or Teletext is displayed but out of sync.
• Switches to protection mode (intermittently). (picture attached)
• Intermittently picture blanks for approx 1 sec. (with circuit diagram extract)
• Predominance of one of the three colours (red, green or blue).
• Green lines. (part of circuit diagram displayed)
• Horizontal lines (TXT data) on the top part of the picture. (+ extract of circuit diagram) (688596 tip from SBR)
• Picture darkens (after disappearance of green bar) after tuning and storing channel in memory. No adjustment possible.
• Excessive horizontal size. at top. (picture attached)
• Poor RC sensitivity. (with circuit diagram extract) (688596 SBR repair tip)
• Insufficient horizontal and vertical picture aamplitude. Smoke from R3177. (with circuit diagram extract)
• Black screen. Audio OK . (with circuit diagram extract)
• Hum in picture. Error disappears after approx10 mins operation.
• Horizontal deflection is poor. (picture attached)
• Processor for TRD4 control panel. (service info for SBR -688596)
• 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 attached)
• Wide white bar in the picture, no reception. (extract of circuit diagram attached)
• Field flyback lines visible for a second or so when channel changed. They then disappeared. (picture attached)
• Signal/sync/timebase drive problems.
• Starts with E1 and intense fizzling sound. No picture or sound. (picture attached)
• HT transistor blows continuously (short circuit).
• No red. (picture attached)
• After switch-on no picture and sound, 88 in display. When mains switch pressed, snow. TXT and stereo LED lights.
• Bottom linearity faulty. (+ extract of circuit diagram)
• Tuning drifts. Snowy raster. (+ extract of circuit diagram)
• No picture. intermittently. HV OK. . (+ extract of circuit diagram)
• Replacing line output transistor BU508.
• Picture jitters on the upper picture edge. Ok after 5 mins. (part of circuit diagram displayed)
• No vertical synchronisation. (part of circuit diagram displayed)
• Flyback lines. when changing channels. (extract of circuit diagram attached)
• Only half of picture visible. (+ extract of circuit diagram)
• No E/W correction. (with circuit diagram extract)
• Conversion from TRD to TRD-ECO.
• Whistling from PSU. (part of circuit diagram displayed)
• No colour when the appliance is switched on (cannot be programmed through memory), picture is dark. (service info for SBR -688596)
• Squealing noise. (picture attached) (688596 tip from SBR)
• One colour missing (intermittently). (+ extract of circuit diagram)
• PSU switches frequently to protection mode (also when lamp is connected). (part of circuit diagram displayed)
• Slow start-up. (picture attached)
• Goes into standby each time channel is changed manually or by the RCU.
• Upper vertical linearity defective. Flyback lines on TXT broadcasts. (with circuit diagram extract)
• No STEREO.
• No raster. (part of circuit diagram displayed)
• No REC and PB. PSU hiccups. (with circuit diagram extract)
• No sound or picture. Screen in the black level.
• Hums and crackling. LED flashes. (+ extract of circuit diagram)
• The picture is much too wide, east/west does not control. (extract of circuit diagram attached) (688596 SBR repair tip)
• Switches off by itself. (688596 SBR repair tip)
• No function or display when first switched on. Starts up OK at second attempt. (with circuit diagram extract)
• 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. (688596 tips)
• Poor colour (when cold). (extract of circuit diagram attached)
• No channel storing.
• The vertical lines are ribbed, especially in the test picture. (part of circuit diagram displayed)
• Dead (intermittently). Squealing from PSU. (+ extract of circuit diagram)
• Lines in picture. at top . (+ extract of circuit diagram)
• No picture. Sound available. Intermittently picture appears for 1 sec.
• After installing the vertical ICs there are stripes in the top part of the picture. Electrolytic 3300uF is ok. (part of circuit diagram displayed)
• No picture just very bright raster at centre of screen. (part of circuit diagram displayed)
• Channel loss at switch on after memorising channels. (picture attached)
• Vertical problems. (picture attached)
• Arcing. (+ extract of circuit diagram)
• Blows components (intermittently). (part of circuit diagram displayed)
• Vertical waves when switching from TXT to normal picture.
• No picture just loud trumpeting noise. (with circuit diagram extract)
• PSU and HV unit switch on, but no display and standby LED lights. No linearity.
• Critical adjustment with user controls. Sometimes it works properly when tapping on cabinet.
• Changing channel. (extract of circuit diagram attached)
• The sound contains noise, no low pitched sound. (picture attached) (688596 SBR repair tip)
• 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. (688596 tips)
• The display reacts but the tuning does not.
• TXT-replacement.(4822 212 21008T). (part of circuit diagram displayed)
• Rectification of IM 84VK049. (extract of circuit diagram attached)
• Power supply whistling and the BU508 is S/C. (extract of circuit diagram attached)
• Vertical fault. Picture is approx 20cm high. Bright background with flyback lines.
• Faint raster. (part of circuit diagram displayed)
• No picture at start up. Channel storage ok. Sound, colour, contrast and brightness balance are not stored.
• Non linear picture. (+ extract of circuit diagram)
• No synchronisation.
• TDA3650 fails after one week. (+ extract of circuit diagram)
• Picture horizontally unstable. (part of circuit diagram displayed)
• Doesn't switch to standby. Standby LED OK, no display, but picture and sound remains.
• No LCD on front panel. (part of circuit diagram displayed)
• No TXT with the CCT decoder system. (picture attached)
• Line pulling/frame jitter. (+ extract of circuit diagram)
• E/W adjustment.
• Switches to standby. Motorboating. Switches on and off. (Non-SOPS, IV-B-3) (with circuit diagram extract)
• Switches off and on spontaneously, particularly when putting on a video film and when switching over. (service info for SBR -688596)
• Output signal is occasionally O/C when shown on oscilloscope.
• Blanking valency in picture (black bar in 3/4 of picture). (+ extract of circuit diagram)
• No tuning. (part of circuit diagram displayed)
• Blanking fails, lines run through and sound is . (+ extract of circuit diagram)
• When calling up TXT page, 2nd digit is incorrectly reproduced, yet correct page appears.
• Horizontal sychronisation is distorted. (with circuit diagram extract)
• No audio. (+ extract of circuit diagram)
• Lines in picture. on the left. (with circuit diagram extract)
• Flashover then weak contrast. (+ extract of circuit diagram)
• Occasionally the channel memory or the preselector do not work.
• Bright picture. Flyback lines.
• When switching channels, TV stops for 1 sec.
• Voltage slightly high. (picture attached)
• Noise line on one side of screen. (extract of circuit diagram attached)
• Picture output IC defective after 2-3 weeks. (+ extract of circuit diagram)
• The line end stage transistor 7162 heats up. The base and collector pulses are ok, the transistor blows. (with circuit diagram extract)
• Stereo problems; switching from mono/stereo. Crackling sounds. (with circuit diagram extract)
• Video and bottom half of scan are missing with extremely bright raster. (picture attached)
• Incorrect TXT, ie. instead of a 6, an 8 will appear, or the appliance goes back to regular picture position. (extract of circuit diagram attached) (688596 SBR repair tip)
• Excessive brightness. (extract of circuit diagram attached)
• Voltages measured on pins IC TDA3650.
• Dark picture, also by TXT/Scart. Colour OK. (with circuit diagram extract)
• No display. No channel search. Picture OK . (picture attached)
• Shakey picture. No sound on some channels. Appliance starts. (part of circuit diagram displayed)
• Low audio. Distorted audio. (with circuit diagram extract)
• No functions. at start-up. Whistling. at switch-off.
• Switches to standby (after a few minutes). (+ extract of circuit diagram)
• Predominance of blue, faint blue flyback lines visible. (with circuit diagram extract)
• Picture rolls. (+ extract of circuit diagram)
• The picture is too small. The power supply is too weak. (+ extract of circuit diagram)
• Defective after lightning. (extract of circuit diagram attached)
• PSU hiccups.
• Poor VCR line synchronisation . (picture attached)
• Spontaneous flash over in focus spark gap. (688596 tips)
• Power supply BU S/C. (+ extract of circuit diagram)
• 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. (part of circuit diagram displayed)
• No startup. Banging noise audible.
• Intermittently parallel stripes on one part of the screen. Shock sensitive. (service info for SBR -688596)
• Line transformer installation.
• V resistor 3186 (2R2/raster unit) burns at switch on. (extract of circuit diagram attached)
• Deflection BU fails after approx. 1-2 weeks.
• Poor horizontal fringy picture. (picture attached)
• Intermittent loss of colour and picture sways. (+ extract of circuit diagram)
• Picture runs from left to right, especially on bright pictures.
• Picture is distorted on top. Flyback lines. Picture changes according to picture content. (extract of circuit diagram attached) (SBR - 688596 information)
• Cycles on/off. after a few minutes.
• Trapezium ininformation. (+ extract of circuit diagram)
• Rolling picture and warps vertically. (+ extract of circuit diagram)
• Channels "up and down" only work on the RC.
• E/W-error, trapezium distortion. (part of circuit diagram displayed)
• Focus problems. Shuts down (after a few minutes). (extract of circuit diagram attached)
• PSU is defective. (with circuit diagram extract)
• East/west code. The sound disappears, the picture is vague and the appliance constantly arches stations.
• No start-up. Audible noise. (688596 tip from SBR)
• No picture. in UHF. (picture attached)
• Horizontal lines across the picture, sometimes picture content in the middle of the screen disappears (then black bars across the picture). (with circuit diagram extract)
• Brightness and colour saturation influence each other. (part of circuit diagram displayed) (688596 SBR repair tip)
• No E/W correction. at bottom. (+ extract of circuit diagram) (688596 SBR repair tip)
• Focus control replacement. (part of circuit diagram displayed) (SBR - 688596 information)
• Distorted picture at high white proportion. (extract of circuit diagram attached)
• No start up. PSU goes to protection circuit. (picture attached) (service info for SBR -688596)
• Visible flyback lines and colour tints problems. (+ extract of circuit diagram)
• Distorted picture. (extract of circuit diagram attached)
• Hiccups when changing channels. (part of circuit diagram displayed)
• Approx 5cm distortion on top of picture with any station, in cold conditions. (extract of circuit diagram attached)
• Goes into standby with E3 and a few seconds later goes to function. (picture attached)
• Blank raster. Audio OK . (extract of circuit diagram attached)
• Appliance functions only when warm. It fails intermittently when cold.
• In the middle of the picture a stripe which is approx 15cm high appears over the entire picture width. (688596 tip from SBR)
• Front display corrupt, all segments lit to a varying degree. (+ extract of circuit diagram)
• White lines, no focus, too much brightness. 15cm in the middle of the picture. (with circuit diagram extract)
• The appliance gurgles occasionally. (picture attached)
• Line output stage transistor BU508 fails approx every 6 days. (+ extract of circuit diagram)
• Top of picture has non linear scan, ok when appliance has warmed up. (extract of circuit diagram attached)
• Blank raster, turning up A1 control shows frame collapse. (part of circuit diagram displayed)
• E/W failure,temperature sensitive. (picture attached)
• No start up, displays E3. No 13V. (part of circuit diagram displayed)
• 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)
• No MONO audio. STEREO OK . (688596 tip from SBR)
• Switches to program 1, but no function. Whistles.
• Stuck in standby. (picture attached) (SBR - 688596 information)
• No raster. Audio OK . (part of circuit diagram displayed)
• The focusing pot. blows. (picture attached)
• On/off LED flickering. All front panel symbols light up but no control. (picture attached)
• All presettings disappear after turning on the appliance.
• No tuning. only on certain channels.
• Total loss of memory immediately after CTV is switched off (brightness, colour, contrast, sound and channels). (with circuit diagram extract)
• Power supply cuts out suddenly and whistles. Ok if line BU removed. (extract of circuit diagram attached)
• Power supply BU blows. (with circuit diagram extract)
• Dead. No line drive. (+ extract of circuit diagram)
• Non-linearity on vertical sync. (part of circuit diagram displayed)
• After operating for 12-14 days, the line-BU blows. (with circuit diagram extract)
• 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)
• Low contrast. in TXT. (picture attached) (688596 tip from SBR)
• BU826 and main fuse are defective. When starting after replacement, the power supply hiccups once and is defective again. (extract of circuit diagram attached)
• No TXT (intermittently). (with circuit diagram extract)
• Herringbone pattern on raster. High channels are not accepted when tuned.
• No picture. Green and pink raster at the top. (part of circuit diagram displayed)
• No audio. Picture OK . (+ extract of circuit diagram)
• No audio. OK via SCART . (picture attached) (688596 tips)
• No image or sound after start up. Does not lock channels. After 1-2 minutes it comes back to normal. (part of circuit diagram displayed)
• Dark picture. at bottom (after a while). (extract of circuit diagram attached)
• No picture or teletext, RGB/status line at 2V. (part of circuit diagram displayed)
• The line oscillator is unstable, the picture shakes. (+ extract of circuit diagram)
• Poor vertical synchronisation. (+ extract of circuit diagram)
• No picture or sound after spark flashover in the HS cable. (+ extract of circuit diagram)
• Switches to standby after a few hours. Can be switched on again but fault reoccurs. Interim period becomes shorter.
• K9/K11 band switch.
• Sometimes when switched on set gives a squealing noise and no sound or vision. (picture attached) (688596 SBR repair tip)
• Whines loudly at switch on and will not start up. (with circuit diagram extract)
• Too little brightness after DIM command (CDI use). (+ extract of circuit diagram)
• No function, no sound, no display and no HT. Only a faint switch-on thud in speakers.
• Picture intermittently goes to negative or is shifted laterally.
• No function. No start up. (SOPS, IV-F-3). (extract of circuit diagram attached)
• Dark picture. (extract of circuit diagram attached)
• Black stripes over the whole screen.
• Poor focus. (+ extract of circuit diagram)
• Pictures bows at edges. Width can be adjusted. (picture attached)
• Dark picture (intermittently).
• Vertical lock 1/3 of the way up the screen. (part of circuit diagram displayed)
• Poor E/W. Centre of picture is pulled inwards. (extract of circuit diagram attached)
• Vertical IC defective after mounting. (with circuit diagram extract)
• Intermittently dead. (extract of circuit diagram attached)
• Sound becomes lower after switch on. (picture attached)
• Picture shifts and jitters depending on picture content.
• Erratic functions. (extract of circuit diagram attached)
• Beam limiter problem. (part of circuit diagram displayed)
• Safety test after repair.
• Vertical linearity defective. (extract of circuit diagram attached)
• Vertical waves on both sides of picture. Unstable picture. (+ extract of circuit diagram)
• Picture bounces in upper picture third if a poor signal is present at aerial input. Vertical lines twist. (picture attached) (688596 tips)
• No start-up. (with circuit diagram extract)
• "88" on the display. No picture. No sound. (+ extract of circuit diagram)
• Very loud sound, not adjustable. No display.
• Picture synchronization in the top third of the screen. (+ extract of circuit diagram)
• No TXT. (+ extract of circuit diagram)
• How to store personal preferences (PP).
• Dim picture. in TXT. No contrast. in TXT. (extract of circuit diagram attached)
• Unstable picture. (picture attached)
• Set intermittent dead, when faulty E1 displayed. (+ extract of circuit diagram)
• Squealing from PSU. (picture attached)
• No line drive. (picture attached)
• Display shows functions which were not chosen. (+ extract of circuit diagram)
• Switches to standby. (with circuit diagram extract) (688596 SBR repair tip)
• 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 foldover at top. (part of circuit diagram displayed)
• No remote control operation on teletext version. (picture attached)
• Fine horizontal lines on picture, particularly during channel switch-over. Occasionally vertical sync. does not fit in with screen.
• Coloured spots in flat square picture tubes.
• Occasionally thin white lines, picture bounce at the side and top edge. (688596 tip from SBR)
• Poor IF gain. (+ extract of circuit diagram)
• Only starts up after pressing ON/OFF switch a few times. (picture attached) (688596 tip from SBR)
• Repeated failure of BU508A line output transistor. (part of circuit diagram displayed)
• Error codes. (+ extract of circuit diagram)
• Burn up in E/W correction circuit (R3170, R3175). (extract of circuit diagram attached)
• No function, the 141V power supply voltage is only approx 80V. (picture attached)
• Reduced horizontal size. (extract of circuit diagram attached)
• No picture. intermittently. (+ extract of circuit diagram)
• PSU whistles. Line output transistor BU508 fails (S/C).
• Blurred screen. Shifted tuning. Unable to adjust with fine tuning. Sometimes tuning doesn't lock in on stations.
• No functions. (picture attached)
• No picture. When switched on, display shows 5 (no bottom segment) and EXT4. E3 after a few secs. (+ extract of circuit diagram)
• No drive at BU826. (picture attached)
• Muted audio. after a while. (picture attached)
• Power supply trips at switch on, producing a fading whistle. (+ extract of circuit diagram)
• Frequency divider 4822 212 21226.
• After about 7 days the vertical endstage IC TDA3650 blows again. All the voltages are ok. (part of circuit diagram displayed)