668110Z / SBR [TV]

• Burn up in E/W correction circuit (R3170, R3175). (part of circuit diagram displayed) (668110Z tip from SBR)
• Safety test after repair.
• East-west raster correction fault. (picture attached)
• Volume too high. Excessive colour and incorrect brightness at switch on.
• No picture. Green and pink raster at the top. (picture attached)
• Picture lacks width after 5mins from start-up. Displays E3. (+ extract of circuit diagram)
• BU504 blows after 30 mins. (part of circuit diagram displayed)
• Intermittent no signals, then will rest to CH1 with volume high.
• The sound cuts out occasionally. Only FM noise is heard through the loud speakers. (with circuit diagram extract)
• E/W fault. Trips. (part of circuit diagram displayed)
• Switches off and on spontaneously, particularly when putting on a video film and when switching over.
• Bottom linearity faulty. (with circuit diagram extract)
• Flyback lines. when changing channels. (extract of circuit diagram attached)
• Dead (intermittently). Squealing from PSU. (+ extract of circuit diagram)
• White lines, no focus, too much brightness. 15cm in the middle of the picture. (extract of circuit diagram attached)
• Line oscillator chip failure after an EHT flashover. (+ extract of circuit diagram) (668110Z tip from SBR)
• Horizontal power stage squeaks.
• Loses frame correction slowly. (part of circuit diagram displayed)
• TDA3650 fails after one week. (+ extract of circuit diagram) (service info for SBR -668110Z)
• Deflection BU fails after approx. 1-2 weeks.
• Processor for TRD4 control panel.
• 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)
• No start-up. Audible noise.
• Blows components (intermittently). (picture attached)
• The picture appears then disappears. T26 after D6106, varies from 25 to 10Vcc. (+ extract of circuit diagram)
• Vertical collapse. (part of circuit diagram displayed)
• Picture output IC defective after 2-3 weeks. (picture attached)
• Switches to standby. (+ extract of circuit diagram)
• Intermittent loss of sound and vision, with just snow and no channel display. (+ extract of circuit diagram)
• Defective after lightning. (extract of circuit diagram attached)
• No picture. intermittently. HV OK. . (+ extract of circuit diagram)
• Whistling. No error display. (668110Z tip from SBR)
• Output signal is occasionally O/C when shown on oscilloscope.
• K9/K11 band switch.
• E/W failure,temperature sensitive. (part of circuit diagram displayed)
• Replacing line output transistor BU508.
• Hiccups when changing channels. (extract of circuit diagram attached)
• Lines in picture. on the left. (picture attached) (668110Z tips)
• Every 2-3 days TR7162 (BU508V) is destroyed.
• Picture darkens (after disappearance of green bar) after tuning and storing channel in memory. No adjustment possible.
• The appliance may cut out occasionally and then there is no more picture or sound.
• No picture just very bright raster at centre of screen. (picture attached)
• Repeated power supply failure. (+ extract of circuit diagram)
• Picture jitters on the upper picture edge. Ok after 5 mins. (picture attached)
• All presettings disappear after turning on the appliance.
• Error codes. (with circuit diagram extract)
• Muted audio. (with circuit diagram extract) (service info for SBR -668110Z)
• Dark picture. (picture attached)
• No function, the 141V power supply voltage is only approx 80V. (with circuit diagram extract)
• No picture on teletext. (+ extract of circuit diagram)
• No RC functions. (with circuit diagram extract)
• BU508 fails continuously. (part of circuit diagram displayed)
• No red. (part of circuit diagram displayed)
• Predominance of one of the three colours (red, green or blue).
• No remote control operation on teletext version. (picture attached)
• Set intermittent dead, when faulty E1 displayed. (picture attached)
• When switching on, main supply reduces to about 24V and then no function.
• After it has been replaced line BU blows every 2 to 3 days. (+ extract of circuit diagram) (668110Z tip from SBR)
• The sound goes erratically to max. volume. (picture attached)
• Front display corrupt, all segments lit to a varying degree. (extract of circuit diagram attached)
• Line transformer installation.
• No function, stand-by connection has voltage.
• Switches off by itself.
• Stereo problems; switching from mono/stereo. Crackling sounds. (part of circuit diagram displayed)
• Black streaky lines after a few mins. Completely dark picture after approx 5 mins. (with circuit diagram extract) (668110Z tips)
• Herringone pattern and upper channels are not accepted when tuning.
• Whistling noise from FBT. (extract of circuit diagram attached)
• Poor colour (when cold). (with circuit diagram extract)
• Poor focus. (+ extract of circuit diagram) (668110Z tip from SBR)
• Stuck in standby. (picture attached)
• No function, 142V is present but R3292 (680R) blows continuously.
• Wide white bar in the picture, no reception. (picture attached) (SBR - 668110Z information)
• Intermittently picture blanks for approx 1 sec. (with circuit diagram extract)
• Focus problems. Shuts down (after a few minutes). (with circuit diagram extract)
• Picture shakes. at top (intermittently). (part of circuit diagram displayed) (SBR - 668110Z information)
• Sometimes no vertical deflection; random cramping at top of picture. (with circuit diagram extract)
• "88" on the display. No picture. No sound. (part of circuit diagram displayed)
• Muted audio. intermittently.
• Top of picture has non linear scan, ok when appliance has warmed up. (part of circuit diagram displayed)
• PSU hiccups.
• Brightness and colour saturation influence each other. (part of circuit diagram displayed)
• When switching channels, TV stops for 1 sec.
• E/W fault. (extract of circuit diagram attached)
• Picture unstable on certain stations when cold. Also TXT horizontally unstable.
• Poor E/W adjustment with changes in contrast. (668110Z SBR repair tip)
• Power supply BU blows. (picture attached)
• Picture runs from left to right, especially on bright pictures.
• Upper vertical linearity defective. Flyback lines on TXT broadcasts. (extract of circuit diagram attached)
• Rectification of IM 84VK049. (picture attached)
• Raster shifted upward. Picture OK.
• The focusing pot. blows. (extract of circuit diagram attached)
• East/west code. The sound disappears, the picture is vague and the appliance constantly arches stations.
• Cycles on/off. after a few minutes.
• Visible flyback lines and colour tints problems. (+ extract of circuit diagram)
• Vertical blanking interval still visible in picture after program switch over. (picture attached)
• TXT-replacement.(4822 212 21008T). (+ extract of circuit diagram)
• No tuning, channel no etc. with the standby LED permanently on (sets with 1021 VST module).
• Slow start-up. (+ extract of circuit diagram)
• The picture is too small. The power supply is too weak. (picture attached)
• Hum in picture. Error disappears after approx10 mins operation.
• Switches to protection mode (after a while). (part of circuit diagram displayed)
• Blank raster. (part of circuit diagram displayed)
• Line output transistor fails repeatedly.
• No TXT the indication light lights up. (picture attached)
• No picture. Sound available. Intermittently picture appears for 1 sec.
• PSU is defective. (with circuit diagram extract)
• Unstable picture. (part of circuit diagram displayed)
• Very loud sound, not adjustable. No display.
• Rolling picture and warps vertically. (part of circuit diagram displayed)
• After switch-on no picture and sound, 88 in display. When mains switch pressed, snow. TXT and stereo LED lights.
• The colour shimmers or fades. (with circuit diagram extract)
• Blurred screen. Shifted tuning. Unable to adjust with fine tuning. Sometimes tuning doesn't lock in on stations.
• V resistor 3186 (2R2/raster unit) burns at switch on. (part of circuit diagram displayed)
• Appliance fails. BU508A will become defective and displays E-3. Power supply squeaks. (extract of circuit diagram attached) (668110Z tips)
• Insufficient horizontal and vertical picture aamplitude. Smoke from R3177. (extract of circuit diagram attached)
• Coloured lines and sloping picture. (picture attached)
• Distorted picture at high white proportion. (part of circuit diagram displayed)
• Poor audio. only on one channel. (+ extract of circuit diagram)
• Shakey picture. No sound on some channels. Appliance starts. (extract of circuit diagram attached)
• Bright white line in picture, no sound. (with circuit diagram extract)
• Doesn't lock in on channels or stops but tuned off. (+ extract of circuit diagram)
• Normal off air picture is fine but teletext is very dim with hardly any contrast. (extract of circuit diagram attached)
• No STEREO. (668110Z SBR repair tip)
• Blank screen (intermittently). (+ extract of circuit diagram)
• Picture-sound-display is intermittent. (part of circuit diagram displayed)
• Blanking valency in picture (black bar in 3/4 of picture). (+ extract of circuit diagram)
• No function. No start up. (SOPS, IV-F-3). (+ extract of circuit diagram)
• Poor closure of function door.
• Picture collapses in RF every 2 seconds. Picture OK via scart. (SBR - 668110Z information)
• No function, no sound, no display and no HT. Only a faint switch-on thud in speakers.
• Picture shifts and jitters depending on picture content.
• Tripping. (extract of circuit diagram attached)
• No start up, displays E3. No 13V. (+ extract of circuit diagram)
• TV picture slightly visible when in TXT mode. (picture attached)
• Pictures bows at edges. Width can be adjusted. (extract of circuit diagram attached)
• Poor vertical synchronisation. Intermittently flyback lines in lower quarter. (part of circuit diagram displayed)
• Occasionally picture runs through (line).
• Occasionally thin white lines, picture bounce at the side and top edge. (668110Z SBR repair tip)
• Approx 5cm distortion on top of picture with any station, in cold conditions. (extract of circuit diagram attached)
• Set does not go to standby although the LED is lit up. (part of circuit diagram displayed)
• Whines loudly at switch on and will not start up. (extract of circuit diagram attached)
• No brightness. No colour. intermittently.
• Very bright raster in the centre of the screen. No video signal content. Top and bottom third of screen are dark. (picture attached)
• PSU and line transformer chirp. (picture attached)
• Interference on channel 2 with TRD 4 system. (with circuit diagram extract)
• All LCD segments are lit. LED flashes abnormally. (part of circuit diagram displayed)
• Video and bottom half of scan are missing with extremely bright raster. (part of circuit diagram displayed) (service info for SBR -668110Z)
• Occasionally noise in TV (like short attempts to start up), picture width variation and display which disappears. (part of circuit diagram displayed)
• The station memory loses the station programming after about 3 weeks.
• Line tearing in upper third of picture after longer operation. (picture attached)
• Distorted picture. Snow in picture. (with circuit diagram extract)
• Picture width twitches. Beam current dependent. (extract of circuit diagram attached)
• Dark picture. Audio OK . (with circuit diagram extract) (service info for SBR -668110Z)
• No TXT (intermittently). (+ extract of circuit diagram)
• Cycles on/off.
• The power supply goes to protection circuit. (+ extract of circuit diagram)
• Destroys line output transistors. (extract of circuit diagram attached)
• Visible black, unsynchronised TXT klok.
• Picture OK but display only shows signs.
• Erratic functions. (+ extract of circuit diagram)
• Top of picture is non linear with teletext lines. (picture attached)
• Horizontal deflection is poor. (with circuit diagram extract)
• Snowy raster. (extract of circuit diagram attached)
• No line drive. (+ extract of circuit diagram)
• Sometimes when switched on set gives a squealing noise and no sound or vision. (part of circuit diagram displayed)
• Excessive horizontal size. at top. (picture attached)
• Unknown indication in the display, no function.
• No start up. PSU goes to protection circuit. (+ extract of circuit diagram)
• Starts with E1 and intense fizzling sound. No picture or sound. (extract of circuit diagram attached)
• Vertical problems. (picture attached) (668110Z tip from SBR)
• Picture shifts downwards and then comes up again after a few minutes, picture is then o.k., but is round. (picture attached) (service info for SBR -668110Z)
• No vertical deflection. (extract of circuit diagram attached)
• Lines in picture. at top . (picture attached)
• Picture rolls. (+ extract of circuit diagram)
• Very loud sound, cannot be adjusted. No display. (+ extract of circuit diagram)
• Dark picture, also by TXT/Scart. Colour OK. (with circuit diagram extract)
• Hum in picture. Contrast dependent effect. (with circuit diagram extract)
• Does not stop at S channels during station search. Appliance should be suited to do so.
• The line end stage transistor 7162 heats up. The base and collector pulses are ok, the transistor blows. (+ extract of circuit diagram)
• Vertical lock 1/3 of the way up the screen. (part of circuit diagram displayed)
• No drive at BU826. (extract of circuit diagram attached)
• No horizontal deflection. (picture attached)
• Hum in power supply audible. (extract of circuit diagram attached)
• No LCD on front panel. (extract of circuit diagram attached)
• No picture. Loud fizzling noise from line deflection. (extract of circuit diagram attached)
• Intermittently dead. (with circuit diagram extract)
• Squealing from PSU. (with circuit diagram extract)
• No colour. Audio and picture OK . (+ extract of circuit diagram)
• Field flyback lines visible for a second or so when channel changed. They then disappeared. (extract of circuit diagram attached)
• No startup. Banging noise audible.
• E/W convex.
• Intermittent or no vertical linearity. (+ extract of circuit diagram)
• Red picture. (+ extract of circuit diagram)
• BU826 and main fuse are defective. When starting after replacement, the power supply hiccups once and is defective again. (picture attached)
• Flyback lines in TXT broadcasts. Upper vertical linearity is defective. (extract of circuit diagram attached)
• Switches to standby (after a few minutes). (part of circuit diagram displayed)
• No start-up. (extract of circuit diagram attached)
• Goes into standby each time channel is changed manually or by the RCU.
• No sound or vision and E3 on the display. (+ extract of circuit diagram)
• No horizontal synchronisation. (picture attached)
• Too much brilliance of one cathode of picture tube.
• No TXT. (picture attached)
• Vertical IC defective after mounting. (part of circuit diagram displayed)
• Peak white bright band approx. 4" across screen. Then set dead. (picture attached)
• Code numbers for picture tube prints.
• Critical adjustment with user controls. Sometimes it works properly when tapping on cabinet.
• Non-linearity on vertical sync. (+ extract of circuit diagram)
• Muted audio. Picture OK .
• No picture. Audio OK . (part of circuit diagram displayed) (668110Z tip from SBR)
• Pincushion effect on vertical straight lines. (+ extract of circuit diagram)
• Noise in picture. (+ extract of circuit diagram)
• Dead. No line drive. (extract of circuit diagram attached) (SBR - 668110Z information)
• No sound or picture. Screen in the black level. (SBR - 668110Z information)
• Blanking of the raster, starting at bottom of the picture. (part of circuit diagram displayed)
• The power supply unit shuts off after some time and squeaks. (extract of circuit diagram attached)
• Black stripes over the whole screen.
• Red picture (intermittently). (with circuit diagram extract)
• The appliance often becomes intermittent when switched on. (extract of circuit diagram attached)
• Coloured spots in flat square picture tubes.
• Adjustment.
• No functions. (extract of circuit diagram attached)
• No E/W correction. (extract of circuit diagram attached)
• East/West fault.
• Channel loss at switch on after memorising channels. (picture attached) (SBR - 668110Z information)
• No image or sound after start up. Does not lock channels. After 1-2 minutes it comes back to normal. (with circuit diagram extract)
• No picture (intermittently). (+ extract of circuit diagram)
• Doesn't switch to standby. Standby LED OK, no display, but picture and sound remains.
• No raster. Audio OK . (+ extract of circuit diagram)
• Intermittently parallel stripes on one part of the screen. Shock sensitive.
• Test picture visible in the background in TXT mode. (extract of circuit diagram attached)
• Faint white streaks above the picture. (picture attached)
• Whistling from PSU. (+ extract of circuit diagram)
• No synchronisation. intermittently. Picture shakes. (picture attached)
• Switches to standby (intermittently). (with circuit diagram extract)
• Noise line on one side of screen. (extract of circuit diagram attached)
• Channel indicators permanently display 88. Hissing from EHT capacitor. (extract of circuit diagram attached)
• No audio. OK via SCART . (with circuit diagram extract)
• Picture too large, E/W indented.
• HT transistor blows continuously (short circuit).
• Line pulling/frame jitter. (part of circuit diagram displayed)
• Channels "up and down" only work on the RC.
• Switches to program 1, but no function. Whistles.
• Sound becomes lower after switch on. (with circuit diagram extract)
• Poor E/W. Centre of picture is pulled inwards. (with circuit diagram extract)
• Reduced vertical size. (with circuit diagram extract)
• Small picture. Picture height and audio volume vary according to picture content. (extract of circuit diagram attached)
• No start-up. intermittently. Squealing noise. (+ extract of circuit diagram)
• Pincushion distortion. (+ extract of circuit diagram)
• Start up from standby after 2 secs. (extract of circuit diagram attached)
• Herringbone pattern on raster. High channels are not accepted when tuned.
• The vertical lines are ribbed, especially in the test picture. (part of circuit diagram displayed)
• Distorted picture. (+ extract of circuit diagram)
• Switches to standby. Motorboating. Switches on and off. (Non-SOPS, IV-B-3) (+ extract of circuit diagram)
• There is an occasional beating noise.
• Voltages measured on pins IC TDA3650.
• At switch on there is a loud trumpeting and no picture. (with circuit diagram extract)
• Picture horizontally unstable. (+ extract of circuit diagram)
• Dim picture. in TXT. No contrast. in TXT. (part of circuit diagram displayed)
• PSU switches frequently to protection mode (also when lamp is connected). (picture attached)
• Occasionally picture darkens and at the same time raster disappears. (+ extract of circuit diagram)
• Intermittently loses vertical sync. Black line slowly moving up and down picture. Picture and sound OK. (extract of circuit diagram attached)
• TXT-lines in picture for three seconds at switch over. Then perfect picture. (+ extract of circuit diagram) (SBR - 668110Z information)
• No channel storing.
• Signal/sync/timebase drive problems. (service info for SBR -668110Z)
• Fuse 1101 fails continuously. (part of circuit diagram displayed)
• Misty picture. (with circuit diagram extract)
• No display. No channel search. Picture OK . (+ extract of circuit diagram)
• In the middle of the picture a stripe which is approx 15cm high appears over the entire picture width.
• PSU and HV unit switch on, but no display and standby LED lights. No linearity.
• Poor RC sensitivity. (extract of circuit diagram attached) (SBR - 668110Z information)
• Picture synchronization in the top third of the screen. (+ extract of circuit diagram) (668110Z tips)
• No picture. in UHF. (with circuit diagram extract)
• Vertical sync remains occasionally halfway down the frame although it locks correctly. (extract of circuit diagram attached)
• Picture vibrates horizontally. Broken or intermittently double bar. (part of circuit diagram displayed) (service info for SBR -668110Z)
• EHT arcing.
• The appliance gurgles occasionally. (with circuit diagram extract) (668110Z tips)
• 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)
• Blank raster. Audio OK . (extract of circuit diagram attached)
• E/W-error, trapezium distortion. (extract of circuit diagram attached)
• Picture takes 10 mins to appear. (extract of circuit diagram attached) (668110Z tip from SBR)
• No power supply regulation. (picture attached)
• Tuning drifts. Snowy raster. (extract of circuit diagram attached)
• Spontaneous flash over in focus spark gap.
• Muted audio. after a while. (part of circuit diagram displayed)
• Intermittent loss of colour and picture sways. (extract of circuit diagram attached)
• How to store personal preferences (PP). (668110Z SBR repair tip)
• Problems with the vertical deflection, picture folds at the top edge. (with circuit diagram extract) (668110Z tips)
• No raster. (+ extract of circuit diagram) (668110Z tips)
• Horizontal output transistor defective. (+ extract of circuit diagram)
• Arcing. (+ extract of circuit diagram)
• 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.
• Screen compressed at the bottom and very quick vertical drift of picture. (extract of circuit diagram attached)
• No start-up (when cold). (extract of circuit diagram attached)
• Very faint raster. (with circuit diagram extract)
• TV starts up but EHT is missing. Programme number disappears, then "E1" appears.
• 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. (668110Z tip from SBR)
• Poor vertical synchronisation. (extract of circuit diagram attached)
• Goes into standby with E3 and a few seconds later goes to function. (part of circuit diagram displayed)
• No audio. Picture OK . (+ extract of circuit diagram)
• Fine horizontal lines on picture, particularly during channel switch-over. Occasionally vertical sync. does not fit in with screen.
• Switches to standby (after start-up).
• Horizontal jitter. (picture attached)
• Poor picture. (extract of circuit diagram attached)
• Line output transistor (BU508) defective. (part of circuit diagram displayed)
• Jitter with VCR on freeze frame. (extract of circuit diagram attached)
• Non linear picture. (extract of circuit diagram attached)
• Horizontal sychronisation is distorted. (+ extract of circuit diagram)
• Vertical waves on both sides of picture. Unstable picture. (extract of circuit diagram attached)
• Blank raster, turning up A1 control shows frame collapse. (+ extract of circuit diagram)
• No picture at start up. Channel storage ok. Sound, colour, contrast and brightness balance are not stored.
• Vertical waves when switching from TXT to normal picture.
• Vertical foldover at bottom. (+ extract of circuit diagram)
• Picture intermittently goes to negative or is shifted laterally.
• Picture is off tune in PB.
• When calling up TXT page, 2nd digit is incorrectly reproduced, yet correct page appears.
• There is an occasional banging noise, the picture shakes. (part of circuit diagram displayed)
• Only starts up after pressing ON/OFF switch a few times. (picture attached)
• After about 7 days the vertical endstage IC TDA3650 blows again. All the voltages are ok. (+ extract of circuit diagram)
• Power supply whistling and the BU508 is S/C. (part of circuit diagram displayed)
• No functions. at start-up. Whistling. at switch-off.
• Flyback lines. at top. (part of circuit diagram displayed)
• Green lines. (+ extract of circuit diagram)
• Predominance of blue, faint blue flyback lines visible. (with circuit diagram extract)
• No picture. intermittently. (part of circuit diagram displayed)
• Type of line transistor 7162. (+ extract of circuit diagram)
• Appliance functions only when warm. It fails intermittently when cold.
• Rope effect on the right hand side of the picture. (picture attached)
• TV switches to standby after approx 30 mins. E3 in display. (with circuit diagram extract)
• Picture bends at top and vibrates. (picture attached)
• Dark picture. at bottom (after a while). (part of circuit diagram displayed)
• 300V from power supply.
• Switches to standby after a few hours. Can be switched on again but fault reoccurs. Interim period becomes shorter.
• Lines at the top of the picture depending on the picture content. (part of circuit diagram displayed)
• Occasionally poor frame sync (line).
• Switches to protection mode (intermittently). (with circuit diagram extract)
• The display reacts but the tuning does not.
• The TXT quivers when a V6100 tuner is connected. (part of circuit diagram displayed)
• 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)
• Reduced horizontal size. (part of circuit diagram displayed)
• The sound contains noise, no low pitched sound. (extract of circuit diagram attached)
• No function or display when first switched on. Starts up OK at second attempt. (part of circuit diagram displayed)
• No line osc. (with circuit diagram extract)
• Line BU goes S/C every fortnight. (part of circuit diagram displayed)
• After installing the vertical ICs there are stripes in the top part of the picture. Electrolytic 3300uF is ok. (picture attached)
• No adjustment of sound. (with circuit diagram extract)
• Flashover then weak contrast. (extract of circuit diagram attached)
• The TXT info appears at top of picture when cold. OK after 5 mins. (+ extract of circuit diagram)
• No picture. (picture attached)
• Vertical fault. Picture is approx 20cm high. Bright background with flyback lines.
• Picture is distorted on top. Flyback lines. Picture changes according to picture content. (picture attached)
• Power supply trips at switch on, producing a fading whistle. (part of circuit diagram displayed)
• On cable reception, stations cannot be tuned or the stations wander off.
• Mains switch and speech-music switch.
• Memory values for picture, sound and channels are lost. (part of circuit diagram displayed)
• Tuning voltage blocked on 33V or 0V (TRD sets).
• TXT lines at top of picture. (part of circuit diagram displayed)
• 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. (part of circuit diagram displayed) (service info for SBR -668110Z)
• Raster IC defective after some time. (with circuit diagram extract) (SBR - 668110Z information)
• Too little brightness after DIM command (CDI use). (picture attached)
• Brightness and or contrast don't work or don't work properly.
• Switches on, but no EHT available. Channel number disappears and then "E1" is displayed.
• Dark screen. R3186 blows up. What is the value of R3186? (picture attached)
• Frequency divider 4822 212 21226.
• Linearity fault in upper part of screen.
• Channel drifts briefly into UHF between approx channel 30 and 37.
• UPD8049PC SAA063 has been changed. The display shows 80.
• 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)
• Squealing noise. (part of circuit diagram displayed)
• Vertical linearity defective. (with circuit diagram extract) (SBR - 668110Z information)
• Incorrect TXT, ie. instead of a 6, an 8 will appear, or the appliance goes back to regular picture position. (+ extract of circuit diagram)
• Failure of field output chip TDA3650. (+ extract of circuit diagram)
• Rolling picture for 5 secs after switching from VHF to UHF. Poor raster synchronisation.
• Poor horizontal fringy picture. (part of circuit diagram displayed)
• Memory loss.
• Flyback lines. at top (in TXT). (picture attached)
• Transistors TR7131, TR7122 and TR7123 blown. (+ extract of circuit diagram)
• Lightning flash; K40 and KT4 are very sensitive to induction voltage. (extract of circuit diagram attached)
• No picture just loud trumpeting noise. (+ extract of circuit diagram)
• In display all segments lit.
• Hums and crackling. LED flashes. (extract of circuit diagram attached)
• No picture. When switched on, display shows 5 (no bottom segment) and EXT4. E3 after a few secs. (with circuit diagram extract)
• Excessive brightness. (with circuit diagram extract)
• Low audio. Distorted audio. (+ extract of circuit diagram)
• 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. (with circuit diagram extract)
• Starts up gradually. (part of circuit diagram displayed)
• Display shows functions which were not chosen. (extract of circuit diagram attached)
• Flyback lines. in PB. (part of circuit diagram displayed)
• All memory-cells on 56.
• High-voltage flash-over. (extract of circuit diagram attached)
• Line output stage transistor BU508 fails approx every 6 days. (with circuit diagram extract) (SBR - 668110Z information)
• Line deflection BU508V blows.
• Only half of picture and there is a lot of light. (picture attached)
• Poor IF gain. (with circuit diagram extract) (service info for SBR -668110Z)
• Picture has shifted inwards in lower picture section. (with circuit diagram extract)
• No vertical synchronisation. (part of circuit diagram displayed)
• No MONO audio. STEREO OK .
• 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.
• Low contrast. in TXT. (+ extract of circuit diagram)
• No start up and humming.
• No tuning. (+ extract of circuit diagram)
• Horizontal lines (TXT data) on the top part of the picture. (extract of circuit diagram attached)
• Blanking fails, lines run through and sound is . (picture attached)
• Instable picture. Picture height and picture width change depending on the volume. Picture folds over at the top.
• Power supply in safety mode, 140V=80V. Power supply fails. No result when unsoldering line transformer and loading power supply with a 75W lamp. (part of circuit diagram displayed)
• Beam limiter problem. (part of circuit diagram displayed)
• Occasionally the channel memory or the preselector do not work. (service info for SBR -668110Z)
• No audio. (+ extract of circuit diagram)
• Bright picture. Flyback lines.
• 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. (with circuit diagram extract)
• Vertical line. (extract of circuit diagram attached)
• No E/W correction. at bottom. (+ extract of circuit diagram)
• No line drive to line output transistor (picture attached)
• After switch on program display P1, then E1. No functions. (+ extract of circuit diagram)
• Power supply BU S/C. (extract of circuit diagram attached) (668110Z tip from SBR)
• Horizontal collapse. after warm-up. No E/W correction. intermittently.
• Poor VCR line synchronisation . (picture attached)
• No colour. (with circuit diagram extract)
• C/P button on the front control does not function.
• No REC and PB. PSU hiccups. (with circuit diagram extract)
• Focus control replacement. (+ extract of circuit diagram)
• No picture. Display OK .
• Voltage slightly high. (+ extract of circuit diagram)
• East/west correction is defective or the power supply gurgles. (extract of circuit diagram attached)
• No synchronisation.
• The line oscillator is unstable, the picture shakes. (part of circuit diagram displayed)
• Picture overbright on left hand side with vertical lines.
• No colour when the appliance is switched on (cannot be programmed through memory), picture is dark.
• Difficulties in tuning on channel. (+ extract of circuit diagram)
• 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. (+ extract of circuit diagram)
• No picture, only sound present. When appliance is switched off a white line appears.
• Only half of picture visible. (+ extract of circuit diagram)
• Picture is erased at 8-10 sec intervals. (with circuit diagram extract)
• No picture or teletext, RGB/status line at 2V. (extract of circuit diagram attached)
• No tuning. only on certain channels.
• Hums and crackles. Sound comes from loudspeaker and chassis. Flashing LED. (service info for SBR -668110Z)
• Only noise the display does not light up. (668110Z tip from SBR)
• PSU whistles. Line output transistor BU508 fails (S/C).
• Black screen. Audio OK . (+ extract of circuit diagram)
• Frame foldover & text interference at top of screen. (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. (+ extract of circuit diagram)
• Line tearing. at top. (part of circuit diagram displayed) (service info for SBR -668110Z)
• On/off LED flickering. All front panel symbols light up but no control. (with circuit diagram extract)
• Normal values for brightness, volume and colour saturation cannot be stored.
• Repeat failure of TDA3650 & 26V supply. (part of circuit diagram displayed) (SBR - 668110Z information)
• One colour missing (intermittently). (extract of circuit diagram attached) (SBR - 668110Z information)
• Inverted E-E display, no picture, no sound. (with circuit diagram extract)
• No picture. after a few seconds. (+ extract of circuit diagram)
• No picture or sound after spark flashover in the HS cable. (picture attached)
• Changing channel. (part of circuit diagram displayed)
• Teletext only shows "P100" flying all over the screen out of sync, or shows a teletext page out of sync.
• Sparks on the yoke plug. High voltage is 1500Vpp instead of 1200Vpp. Working voltage 130V is ok. (+ extract of circuit diagram)
• E/W adjustment.
• Vertical foldover at top. (picture attached)
• Trapezium ininformation. (with circuit diagram extract)
• After operating for 12-14 days, the line-BU blows. (+ extract of circuit diagram)
• Dark picture (intermittently).
• Searches for channels continuously. (extract of circuit diagram attached)
• The picture is much too wide, east/west does not control. (picture attached)
• Conversion from TRD to TRD-ECO.
• No TXT with the CCT decoder system. (picture attached)
• Repeated failure of BU508A line output transistor. (picture attached)
• Faint raster. (extract of circuit diagram attached)
• The appliance cuts out and E3 in the display then everything becomes normal again and after 30 secs the appliance cuts out again. (+ extract of circuit diagram)
• Low audio. (with circuit diagram extract)
• 2R2 resistor always blows. (with circuit diagram extract)
• Picture bounces in upper picture third if a poor signal is present at aerial input. Vertical lines twist. (+ extract of circuit diagram)
• Switches to protection mode (after a few minutes). (with circuit diagram extract)