CT2191 / DANSAI [TV 51 (47/48) cm picture]

• Crackling in sound and picture in UHF and VHF. No sound via scart.
• Power supply fuse blows. When it has been replaced, TV functions again for several days.
• Picture appears slowly. Display OK .
• The fuse blows because RP02 heats up. (CT2191 tips)
• Switches to standby. after a few minutes.
• Volume uncontrollable.
• Standby LED flashes.
• Goes into standby every quarter of an hour or half an hour.
• Black band at bottom of screen over approx 8cm. Picture has shifted to the top.
• Channels below 30 cannot be received (chassis ICC4).
• No start up. can be switched on after some time in standby. Sound OK.
• PSU does not always start after switch on via front control or RC.
• Standard CCETT adaptation.
• Appliance does not function with the mains switch then starts up again with another button.
• No luminance.
• S/C in PSU. (part of circuit diagram displayed)
• Does not come on from standby, red standby light comes on. TV01 and TV02 in the protective circuit respond.
• RP51 (0R22) blows intermittently.
• No start function via RC. With mains switch appliance switches into standby. (extract of circuit diagram attached)
• No picture, no sound and programme display does not light up.
• No transmission in UHF (12V on pin 10 of the tuner connector). (service info for DANSAI -CT2191)
• PSU fails after start-up.
• No light and the appliance cuts out.
• Picture shifted vertically.
• Vertical line. in the centre.
• No search possible. TV switches off without the 10th, 20th and 30th channel.
• The appliance goes to safety mode and mute.
• Power supply stops occasionally, approx after 1/2 hour (very irregular).
• Sound purrs when tuning, picture is correct. Sound is possibly correct but picture disappears.
• TP29 fails after switch on.
• Fuse blows as soon as degaussing is connected.
• TEA 2026C is defective.
• No brightness. Three RGB colour bands on left and right of the screen.
• TP32 fails at switch on. (with circuit diagram extract)
• The power supply is correct without a load (U1 is up). There is a complete stop in the load.
• The power supply does not function with load.
• FBT ok at start up but dark screen except for 3 coloured lines in top third of screen. Sound and display of channels ok.
• Line stage does not start up. (CT2191 DANSAI repair tip)
• Transistor BU508 fails repeatedly.
• PSU is defective, after replacing the protection resistor RP11 and transistor TP32 (BU508) there is still a s/c ie. after switching on appliance there is another complete s/c of the BU 508A straight away.
• Switches to standby. after a while.
• No functions. Standby LED is not visible.
• Snow in picture. in UHF. (CT2191 DANSAI repair tip)
• No secondary voltage.
• Bright picture. at top and bottom.
• When warm picture lifts from the bottom and narrows at the top, black lines at the bottom of the screen. (DANSAI - CT2191 information)
• Vertical lines on edge in EE-mode and via AV.
• The sound and picture hum.
• The display is incorrect and PE appears.
• Start up ok. Picture and sound ok. After 15 minutes or more than one hour no picture but son ok. Horizontal white line.
• No picture. Flyback lines. at top. Audio OK .
• Vertical picture position shifts intermittently upwards approx 2 cm after switch on. It is OK after approx 10 mins.
• TP32 in the PSU is s/c. (DANSAI - CT2191 information)
• Poor startup.
• Does not start up when cold. Audio , display OK.
• No reception on band I, or only picture flickering.
• Crackling in sound and picture in UHF and VHF. No sound in scart.
• The power supply does not start up. No standby
• U1 is instead of 84-90V only approx. 60V. Current consumption is over 100W. (CT2191 tip from DANSAI)
• Adjustment of 5.5MHz min. or 4.43MHz min.
• The appliance switches off for a short time and back on again. (part of circuit diagram displayed)
• Wide dark stripes on left side of picture.
• The power supply does not start up. All transistors have been changed.
• There are 1300V present instead of 900V peak to peak on the collector of the TL37 (BU508ATB). This breaks after some time.
• High contrast. (DANSAI - CT2191 information)
• Secondary protective circuits TV01 and TV02 disconnect intermittently.
• Standby flickers.
• Switches off intermittently or does not switch on at all.
• No image, red raster and flyback lines visible. (extract of circuit diagram attached)
• Poor reception. in VHF.
• BU807 blows regularly. FBT and TEA2026 have been changed.
• Intermittent loss of synchronization.
• TP32 heats up.
• Only switches on after 70 secs. After start up everything is ok.
• Dark screen. on the left.
• Appliance goes into PAL. Occasionally no display.
• No colour (intermittently). Line tearing.
• No functions. (picture attached)
• Normal in black and white. In chroma, red of picture is green, blue is red and green is blue.
• Searches for channels continuously.
• 300V on the collector of TP32. Oscillates at its base but no voltage on the secondary.
• No reception. via tuner.
• Dark screen, 5 or 6 coloured lines at the top of the screen. Picture returns if appliance is hit.
• Setting the vertical amplitude. (CT2191 tips)
• No function display. CTV functions via the front panel and the RCU.
• No brightness (only outlines can be recognised). Colour is ok.
• No picture. Vertical coloured lines. Raster problem. (CT2191 tip from DANSAI)
• No vertical deflection.
• Interference lines in the top part of the screen.
• Top part of the picture is too wide and bottom part is too narrow
• The picture is delayed by a few minutes.
• When appliance is switched on mains BU fails immediately.
• No display. TV functions well. Channel change over ok. (service info for DANSAI -CT2191)
• Switches to protection mode. after start-up. (+ extract of circuit diagram)
• Cannot be switched on or switched to standby. Standby indicator does not light up. (service info for DANSAI -CT2191)
• Volume varies.
• Ghosting effect.
• Faint blue picture with no picture content and flyback lines. (with circuit diagram extract)
• IL03 (TEA2026) blows up when the appliance goes into AV on TV 42cm.
• TL19 fails in line output stage.
• RP02 and power supply BU blow.
• No vertical deflection. intermittently. No audio. intermittently.
• Channels from 21 to 32 come through well but with lines and nothing comes through from 41 to 53.
• PSU inoperative.
• No start up. PSU blocked.
• Dead.
• Fails frequently when operating.
• No picture. Check the signal on pin 10 of IT20. (CT2191 tip from DANSAI)
• The picture blows up and the bottom of the screen is bright.
• No colour. No shutdown with RC.
• Line stage does not start up.
• Picture hum and picture is slightly brighter at the top and bottom. (part of circuit diagram displayed)
• Negative picture. Distorted picture. OK via SCART .
• E/W fault.
• Vertical blue bar on centre of screen. No picture. (service info for DANSAI -CT2191)
• No channel search.
• BU807 (TL54) cuts out. (CT2191 DANSAI repair tip)
• The appliance crackles and the picture framing is incorrect.
• Picture is bright and white with flyback lines. (extract of circuit diagram attached)
• Excessive brightness. (CT2191 DANSAI repair tip)
• No switch on. Standby power supply ok. Standby indicator lights up.
• Lacks horizontal amplitude. Regulation does not function.
• Noise on channel 09 (band I) - colour picture. (extract of circuit diagram attached)
• No function, standby point is not visible.
• Hesitant start up. Mains button must be pressed several times. If appliance runs, fails again most of the time after a few mins.
• Horizontal deflection and line oscillator failed. (part of circuit diagram displayed)
• The picture is blurred (spot at the bottom of the screen).
• The appliance takes 2-3 minutes to start up.
• No picture in UHF, voltage for band change and tuning is OK.
• Line instability.
• Power supply defective.
• TL54/TP32 are destroyed.
• Vertical IC blows repeatedly after a few days.
• Switches to protection mode. intermittently. (CT2191 tips)
• On start up, black interference lines appear then the screen is white.
• White, bright picture, picture poorly distinguishable.
• Reduced horizontal size. (picture attached)
• Horizontal deflection is missing. Protective circuit disconnects. Standby point flashes. (CT2191 tip from DANSAI)
• Dark picture. after a few minutes.
• Deprogrammes approx every 4 to 5 months.
• No reception at band I, or image flickering only. (part of circuit diagram displayed)
• No start up. PSU whistles even when secondary side disconnected.
• DP51 s/c after operating for half an hour.
• RP11 blows.
• No colour, picture streaking.
• Vertical deflection has collapsed to a bright line in the middle of the screen.
• No erasing possible.
• TP32 and TP38 have a short circuit.
• After switch on, vertical centering is shifted intermittently upwards approx. 2 cm; it goes to normal position after approx. 10 minutes.
• Cannot be switched on or switched to standby. Standby indicator does not light up.
• RL41 O/C due to dry joints below connector BD01.
• Shade appears behind the picture.
• Horizontal collapse.
• The picture shifts towards the bottom of the screen.
• Picture is dark or partially ther.
• Loss of sync/raster/sound. Display goes off.
• No start-up (intermittently). (+ extract of circuit diagram)
• Coloured tinge in picture.
• Horizontal centre adjustment.
• Poor contacts.
• No display. Appliance starts.
• TP32 (BU508) and TL37 (BU508) fail immediately after switch on. (with circuit diagram extract)
• Line oscillating or tearing.
• Tripping.
• Power supply, fuses, BUs, etc, blow each time appliance is switched off by ON/OFF switch.
• Switches to standby (intermittently).
• Excessive vertical size.
• The colour appears after a few minutes. (CT2191 DANSAI repair tip)
• The blue circuit is pale.
• Image noise in upper channels (e.g. channel 60, 99) only. (+ extract of circuit diagram) (service info for DANSAI -CT2191)
• TP01 (BUT12A) fails after longer operating time
• Replacement kit of thyristor ESM740/G1/G2.
• Does not start up. Only displays the channel number. Power supply kit has been replaced.
• Poor line synchronisation. Picture is shifted up. (extract of circuit diagram attached)
• Voltages from FBT gradually decrease then line BU S2000 blows after operating for 15 mins.
• PAL run time decoder adjustment - PAL decoder.
• No videotext mode.
• Picture is dark. When Ug2 is completely there, a bit of the picture is present.
• Starts to pulsates. Sound, picture and display present.
• Coloured flyback lines and poor picture.
• Standby light flashes, fuse blows. RP11 and TP32, BU508 fails.
• Dark picture. (DANSAI - CT2191 information)
• When switching on BU508A and RP11 fail after 2 secs.
• U1 = 60V instead of 90V.
• Reduced vertical size.
• Picture predominantly red in SECAM. Ok in PAL via scart.
• The appliance hums and the picture is unstable.
• Contrast average value is too high.
• Switches to protection mode.
• Displays PR and does not start
• No colour.Flag-effect.
• No video or scanning. Channels are displayed.
• Intermittent loss of sync, a blank raster, no sound, switching to standby and the LED channel display going off.
• Does not switch on. No standby.
• Low hum of vertical lines. (picture attached)
• Screen blank. Dark picture.
• The line framing is incorrect.
• No image content, only HF noise. (with circuit diagram extract) (DANSAI - CT2191 information)
• In normal charge, TP32 and TP38 switch off. The appliance functions without a charge.
• No UHF channels.
• Contrast and brightness cannot be adjusted properly. (extract of circuit diagram attached)
• Mains switch no start up. (+ extract of circuit diagram)
• Power supply fault.
• Tube lights up as if G2 is at max (as if blocked in video). The same if an oscilloscope is put into scart. Sound and scanning ok. (DANSAI - CT2191 information)
• Muted audio.
• PSU fails immediately after switch on.
• Slight hum of vertical bars.
• On channels from 21 to 27 picture is ok, from 32 to 35 lines on picture and from 41 to 47 no picture.
• Intermittent loss of sync. Blank raster. No audio. No LEDs.
• Poor display.
• Unstable luminance when the appliance is warm.
• Poor vertical synchronisation. Picture shifted vertically. at top. (+ extract of circuit diagram)
• R82 (10R) on the tube base board fails.
• Excessive green.
• Picture spraying on band I (heat dependent at DP51). (part of circuit diagram displayed) (DANSAI - CT2191 information)
• No U system.
• Switches to standby after 6 or 7 minutes with or without aerial signal.
• Is it possible to fit a TEA 2026C in place of a TEA 2026T ?
• Sound is always at max even if appliance displays volume with 00.
• Stations appear and disappear. Horizontal lines in picture.
• Vertical centre adjustment.
• Vertical collapse (intermittently).
• No picture. No audio. No channel display.
• No horizontal deflection. intermittently.
• The 108V voltage varies (U-system).
• Vertical amplitude is too low.
• Black band on one part of the screen and interference.
• Picture flickers slightly from bottom to top. After removing display indication (control unit) picture is ok (less current). (part of circuit diagram displayed)
• Adjusting the screen grid voltage (grey setting). (CT2191 DANSAI repair tip)
• Poor vertical and horizontal amplitude with slight waving at sides, when cold. Everything returns to normal within 5 mins.
• Does not memorise channel tuning. Display shows channel when TV tunes onto a programme. 'Ch' appears on display when pressing 'S' and channel number reappears.
• No sensitivity in the tuning.
• Black picture with 10cm of RGB horizontal lines over the whole screen.
• No command signal on the IL03.
• Only switches on occasionally, but without picture and sound. Occasionally very high switch on current consumption.
• No picture content, rainbow colours at upper edge. U4 (17,5V) is too high, voltage at thyristor anode too high (approx 30V). At pin 4 of IC03 (TEA2026C) voltage is too high, instead of (2,8V approx. 7V).
• Picture is pulled at the top. Poor line sync. (part of circuit diagram displayed)
• TL19 fails in line ouptut stage. (CT2191 DANSAI repair tip)
• Display ok, 90V, 13V and 22V are ok. Output 10 of TEA2026 to the line driver and the wave peaks are not in the correct frequency. IC and quartz have been changed.
• No speacial channels. Appliance works only up to channel 69. Display for brightness shows L (= English mode) instead of B.
• When switching into standby mode from the remote control the appliance switches off the sound and colour. This effect also occurs with a Condor appliance.
• Line output stage doesn't start up.
• Screen blank, only RF-noise. No 0,5-30V tuning voltage at RT11. The three band switch transistors are conductive. Error may also occur only sometimes.
• No TXT.
• No adjustment.
• No brightness on picture. Chroma present with vertical instability and no sound.
• RP23 and transistor (BU508A) have blown. (DANSAI - CT2191 information)
• Sound and picture cut out, display for 30 secs.
• Reference oscillator beat adjustment: PAL decoder.
• General information.
• TP32 (BU508) becomes defective after appliance turned ON/OFF several times. (part of circuit diagram displayed) (CT2191 tip from DANSAI)
• Distorted picture. Strong streaking.
• Insufficient picture width, poor lines visible on screen
• The appliance blows up on a very light background.
• No vertical synchronisation.
• Focus pot is defective.
• Vertical bar.
• At start up 90V makes 12V. After 2 mins picture and sound present but 90V reaches a maximum at 85V.
• Vertical lines are distorted horizontally. E/W equalizer can not be adjusted correctly.
• Blank screen.
• Vertical foldover at bottom. (service info for DANSAI -CT2191)
• Snow, no voltage on Varicap.
• No picture. Fusible resistor RP47 (0R22) in U2 13V-rail blows repeatedly.
• Rainbow effect in the centre. (CT2191 tip from DANSAI)
• Poor picture alignment.
• Picture width fault.
• No picture. after a few minutes. Audio OK .
• After switching on the mains progamme indication in the display but no picture and no sound. (extract of circuit diagram attached)
• Vertical line.
• Systematic failure of TL54. At switch on TEA2026 has been changed.
• The luminance signal disappears occasionally.
• When cold, no sound and no line amplitude then finally starts up.
• Picture too small. at start-up.
• The PSU fails instantly. When this is replaced by the repair kit the same problem arises.
• No picture. No sound. Programs can also be switched over. (DANSAI - CT2191 information)
• Display appears after 15 secs, then pulsates on and off (no breaker circuit). (extract of circuit diagram attached)
• No tuning.
• No 300V at collector of TP32. If collector is disconnected 300V appear.
• No start-up from standby with RC.
• TL54 (BU807) becomes very hot after a few mins and blows. Normal picture.
• Fuse blows at random, even at switch off.
• Channel storage is erased. (CT2191 tip from DANSAI)
• U7 = 15V and there is no 12V voltage. A black band appears on the screen.
• Noisy sound or no sound at all.
• Picture flickers and stripes in the picture.
• Programmes memory is lost once a month. (CT2191 DANSAI repair tip)
• Flyback lines. No brightness. No contrast.
• Starts up after 3 mins. (CT2191 tip from DANSAI)
• The appliance pulsates 3 times then goes to safety mode.
• No 90V, RP51 burns. BU807, BU508.
• Adjusting the white setting. (CT2191 DANSAI repair tip)
• Low audio.
• No picture, no sound - PSU is switched off.
• Too much contrast, cannot be adjusted to less. (extract of circuit diagram attached)
• At start up no line scanning or raster, TV displays PR. After approx 30 mins TV starts up.
• Slow start-up. (CT2191 DANSAI repair tip)
• No picture on channel 99.
• Sound to zero level. When volume is increased, sound goes back to zero level. Random channel switch-over.
• After changing the battery, how do you adjust the channels without remote control IR?
• The linearity coil whistles. (DANSAI - CT2191 information)
• Both vertical and horizontal synchronization instability.
• Vertical lines at edge during EE operation and via AV. (extract of circuit diagram attached)
• Very snowy picture in UHF. Apparently the fault is at the level of the tuner UHF 4200.
• Power supply fails at less than 100V.
• Tuning voltage drifts.
• Horizontal stripe (intermittently).
• The power supply is destroyed.
• At switch on when cold picture is reduced in height and width of the screen. After heating up for some time scanning becomes normal. Fault is no longer visible. You must wait until TV has cooled down sufficiently.
• No scanning. Display ok. (CT2191 tip from DANSAI)
• Power supply kit has been changed, has been working for 2 days and TP32 s/c, RP11 o/c, TL54 s/c, DL66 s/c, etc. Everything has been replaced, then no U1, U2, U3, U7, power supply transformer OK.
• RP02 burns at switch on and destroys TP32 S2000A1.
• No start-up. No display.
• Fuse blows constantly.
• Loud audio.
• Poor vertical synchronisation.
• No start up or reset.
• After a few days the TV fails. RP11, TP32 and TP38 are defective. The 925TX1283 unit has been replaced: TP32, TP38, CV16, DP33, DP41, DL62, DL64, QL11, CP31, DP32, DP38.
• Contrast and colour are excessive at preset condition.
• No picture or sound. At switch on display indicates a channel but no control is possible.
• Switched-mode power supply (SMPS) does not start up. (picture attached)
• Power supply BU S2000 (BU508AT, BU508AF) S/C.
• Can not be switched on from standby via RC.
• Line BU (BU508) becomes hot and blows. At base of BU there are double pulses.
• Purity spot and scanning are incorrect. (CT2191 tip from DANSAI)
• Spots of colour on the screen.
• The varicap voltage does not move.
• The channels unkey after a while.
• Secondary protective circuit TV01 and TV02 disconnects intermittently.
• Standby indicator flashes.
• Station tuning disappears.
• PSU does not start up with a mains voltage more than 200V, ok with a voltage less than or equal to 200V.
• Power supply fault. TP37 and TP32 have a short circuit and occasionally TP38.
• No high channels can be requested.
• No horizontal or vertical deflection.
• Adjusting Us= 108V.
• U Varicap = 20V and will not change.
• No start-up. Display OK .
• 90V problem. RP51 heats up and cuts out. DP51 and CP51 ok. Brand new line transformer.
• Image compressed horizontally. Insufficient width approx 1cm on left and right of screen.
• DP51 heats up.
• No start-up. (with circuit diagram extract)
• No horizontal deflection.
• The appliance crackles during low Gamme UHF.
• Focus adjustment. (CT2191 tip from DANSAI)
• When warm flickers between picture and TXT. Characters keep popping up on screen (CT2191 DANSAI repair tip)
• No picture. Sound and display are OK.
• No RC functions.
• Phase comparator fault on TV. Ok on secondary.
• No system adjustment.
• PSU repair tip.
• Unstable lines and there is an interference line at the base of TP32. (DANSAI - CT2191 information)
• Picture appears slowly.
• Does not start up. Standby LED switches off.
• Approx one third of the top of the picture is crushed.
• Reluctant to start then produces a picture with reduced width.
• S2000 is s/c. Replaced with the original repair set, it still fails. (extract of circuit diagram attached)
• Black screen. Display is lit. Intermittent sound. Fault occurs both via aerial and SCART.
• TP29 fails after start-up.
• IR receiver does not function.
• Dark screen.
• RP61 burns out.
• Power supply breakdown due to a volt-rise of the power supply kit.