CTV2195 / CATHAY [TV 51 (47/48) cm picture]

• Focus adjustment.
• Noise on channel 09 (band I) - colour picture. (part of circuit diagram displayed)
• Horizontal deflection is missing. Protective circuit disconnects. Standby point flashes.
• No brightness (only outlines can be recognised). Colour is ok.
• Spots of colour on the screen.
• Image noise in upper channels (e.g. channel 60, 99) only. (part of circuit diagram displayed)
• Slight hum of vertical bars.
• Noisy sound or no sound at all.
• Picture drop out and development of smoke. A "rainbow" is visible in the picture.
• TP29 fails after start-up.
• Contrast average value is too high. (CTV2195 tip from CATHAY)
• No reception on band I, or only picture flickering.
• Picture shifted vertically. (service info for CATHAY -CTV2195)
• Ghosting effect.
• After switch on, vertical centering is shifted intermittently upwards approx. 2 cm; it goes to normal position after approx. 10 minutes.
• Channels from 21 to 32 come through well but with lines and nothing comes through from 41 to 53.
• Faint blue picture with no picture content and flyback lines. (+ extract of circuit diagram)
• 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.
• Adjusting the screen grid voltage (grey setting). (CTV2195 tips)
• The appliance crackles and the picture framing is incorrect.
• No UHF channels.
• After changing the battery, how do you adjust the channels without remote control IR? (CTV2195 CATHAY repair tip)
• PAL run time decoder adjustment - PAL decoder.
• Poor vertical and horizontal amplitude with slight waving at sides, when cold. Everything returns to normal within 5 mins.
• Line BU (BU508) becomes hot and blows. At base of BU there are double pulses.
• High contrast.
• Power supply stops occasionally, approx after 1/2 hour (very irregular).
• Fuse blows at random, even at switch off.
• No function, standby point is not visible.
• IL03 (TEA2026) blows up when the appliance goes into AV on TV 42cm.
• Replacement kit of thyristor ESM740/G1/G2.
• Mains switch no start up. (picture attached)
• Black band at bottom of screen over approx 8cm. Picture has shifted to the top.
• No high channels can be requested.
• General information.
• No system adjustment.
• Snow, no voltage on Varicap.
• Voltages from FBT gradually decrease then line BU S2000 blows after operating for 15 mins.
• PSU does not start up with a mains voltage more than 200V, ok with a voltage less than or equal to 200V.
• No start up. PSU whistles even when secondary side disconnected.
• Picture flickers and stripes in the picture.
• Both vertical and horizontal synchronization instability.
• When cold, no sound and no line amplitude then finally starts up. (CTV2195 tips)
• No picture, no sound - PSU is switched off.
• Unstable lines and there is an interference line at the base of TP32.
• Vertical collapse (intermittently). (CTV2195 tips)
• When switching on BU508A and RP11 fail after 2 secs.
• Picture spraying on band I (heat dependent at DP51). (+ extract of circuit diagram)
• Intermittent loss of synchronization.
• No picture. Fusible resistor RP47 (0R22) in U2 13V-rail blows repeatedly.
• No picture or sound. At switch on display indicates a channel but no control is possible.
• Poor reception. in VHF.
• Starts up after 3 mins.
• Poor vertical synchronisation. Picture shifted vertically. at top. (picture attached)
• Sound is always at max even if appliance displays volume with 00.
• Systematic failure of TL54. At switch on TEA2026 has been changed.
• Switches to standby (intermittently).
• 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).
• No erasing possible.
• The picture is delayed by a few minutes.
• Switches off intermittently or does not switch on at all.
• No picture in UHF, voltage for band change and tuning is OK.
• Programmes memory is lost once a month.
• No start function via RC. With mains switch appliance switches into standby. (+ extract of circuit diagram)
• No picture. No audio. No channel display.
• Only switches on after 70 secs. After start up everything is ok.
• S/C in PSU. (with circuit diagram extract)
• Standby light flashes, fuse blows. RP11 and TP32, BU508 fails.
• TL19 fails in line output stage.
• Tuning voltage drifts.
• Cannot be switched on or switched to standby. Standby indicator does not light up.
• The power supply is correct without a load (U1 is up). There is a complete stop in the load.
• Vertical lines are distorted horizontally. E/W equalizer can not be adjusted correctly.
• Distorted picture. Strong streaking.
• Bright picture. at top and bottom.
• Starts to pulsates. Sound, picture and display present.
• 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.
• Dark screen, 5 or 6 coloured lines at the top of the screen. Picture returns if appliance is hit.
• Contrast and colour are excessive at preset condition. (CATHAY - CTV2195 information)
• Does not switch on. No standby.
• Standby flickers.
• Black band on one part of the screen and interference.
• No picture. Flyback lines. at top. Audio OK .
• The appliance goes to safety mode and mute. (service info for CATHAY -CTV2195)
• Contrast and brightness cannot be adjusted properly. (part of circuit diagram displayed)
• No functions. (+ extract of circuit diagram)
• Channel storage is erased. (CTV2195 tip from CATHAY)
• Horizontal centre adjustment.
• RP61 burns out.
• TL54 (BU807) becomes very hot after a few mins and blows. Normal picture.
• No picture. Check the signal on pin 10 of IT20.
• TP32 fails at switch on. (+ extract of circuit diagram)
• No function display. CTV functions via the front panel and the RCU. (CTV2195 tips)
• Loud audio.
• Picture is dark. When Ug2 is completely there, a bit of the picture is present.
• Black picture with 10cm of RGB horizontal lines over the whole screen.
• BU807 (TL54) cuts out.
• Excessive green.
• Switches to protection mode. after start-up. (+ extract of circuit diagram)
• Normal in black and white. In chroma, red of picture is green, blue is red and green is blue.
• At start up no line scanning or raster, TV displays PR. After approx 30 mins TV starts up.
• Coloured flyback lines and poor picture. (CTV2195 CATHAY repair tip)
• The picture blows up and the bottom of the screen is bright.
• No tuning.
• No start-up. Display OK .
• The power supply is destroyed.
• Displays PR and does not start
• Loss of sync/raster/sound. Display goes off.
• No brightness. Three RGB colour bands on left and right of the screen.
• Muted audio.
• TP32 (BU508) becomes defective after appliance turned ON/OFF several times. (+ extract of circuit diagram)
• No picture. No sound. Programs can also be switched over. (service info for CATHAY -CTV2195)
• Rainbow effect in the centre.
• No picture, no sound and programme display does not light up.
• Sound purrs when tuning, picture is correct. Sound is possibly correct but picture disappears.
• No picture. Vertical coloured lines. Raster problem.
• No 90V, RP51 burns. BU807, BU508.
• Volume uncontrollable.
• Too much contrast, cannot be adjusted to less. (+ extract of circuit diagram)
• U1 is instead of 84-90V only approx. 60V. Current consumption is over 100W.
• Picture predominantly red in SECAM. Ok in PAL via scart.
• Poor vertical synchronisation.
• No functions. Standby LED is not visible.
• When appliance is switched on mains BU fails immediately.
• No switch on. Standby power supply ok. Standby indicator lights up.
• When warm picture lifts from the bottom and narrows at the top, black lines at the bottom of the screen.
• Unstable luminance when the appliance is warm.
• No RC functions.
• TL54/TP32 are destroyed. (service info for CATHAY -CTV2195)
• No start-up from standby with RC.
• No speacial channels. Appliance works only up to channel 69. Display for brightness shows L (= English mode) instead of B.
• Does not start up. Standby LED switches off.
• Dead.
• Purity spot and scanning are incorrect.
• Transistor BU508 fails repeatedly.
• Switches to protection mode. intermittently.
• No videotext mode.
• Dark picture.
• Sound and picture cut out, display for 30 secs.
• Switched-mode power supply (SMPS) does not start up. (+ extract of circuit diagram)
• No picture.
• Low hum of vertical lines. (extract of circuit diagram attached)
• No picture. Sound and display are OK.
• Switches to standby. after a while.
• 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.
• Only switches on occasionally, but without picture and sound. Occasionally very high switch on current consumption. (CTV2195 tips)
• Setting the vertical amplitude.
• Insufficient picture width, poor lines visible on screen
• Standby indicator flashes.
• No display. Appliance starts.
• No start-up (intermittently). (picture attached)
• Excessive brightness.
• No video or scanning. Channels are displayed.
• The 108V voltage varies (U-system).
• Poor display.
• Channels below 30 cannot be received (chassis ICC4).
• Vertical bar.
• U Varicap = 20V and will not change.
• The power supply does not function with load.
• Power supply, fuses, BUs, etc, blow each time appliance is switched off by ON/OFF switch.
• Vertical lines on edge in EE-mode and via AV.
• No vertical synchronisation.
• TL19 fails in line ouptut stage.
• No start up or reset. (service info for CATHAY -CTV2195)
• TP32 in the PSU is s/c.
• Power supply fault. TP37 and TP32 have a short circuit and occasionally TP38.
• No reception at band I, or image flickering only. (part of circuit diagram displayed)
• 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.
• Vertical centre adjustment.
• Vertical IC blows repeatedly after a few days.
• Dark picture. after a few minutes.
• Dark screen.
• The appliance switches off for a short time and back on again. (extract of circuit diagram attached)
• 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.
• Intermittent loss of sync, a blank raster, no sound, switching to standby and the LED channel display going off.
• Picture appears slowly. Display OK .
• Power supply breakdown due to a volt-rise of the power supply kit.
• Hesitant start up. Mains button must be pressed several times. If appliance runs, fails again most of the time after a few mins.
• Line stage does not start up.
• Blank screen.
• No scanning. Display ok.
• The picture shifts towards the bottom of the screen.
• The channels unkey after a while.
• Picture is dark or partially ther.
• RP02 burns at switch on and destroys TP32 S2000A1. (CTV2195 tip from CATHAY)
• Appliance does not function with the mains switch then starts up again with another button.
• Slow start-up.
• The display is incorrect and PE appears.
• The picture is blurred (spot at the bottom of the screen).
• No display. TV functions well. Channel change over ok.
• Coloured tinge in picture.
• TP29 fails after switch on.
• The line framing is incorrect. (CTV2195 tips)
• No vertical deflection. (CTV2195 tips)
• No colour.Flag-effect.
• Tripping. (service info for CATHAY -CTV2195)
• Deprogrammes approx every 4 to 5 months.
• Picture is bright and white with flyback lines. (part of circuit diagram displayed)
• No command signal on the IL03.
• Station tuning disappears.
• Reduced horizontal size. (+ extract of circuit diagram)
• Vertical picture position shifts intermittently upwards approx 2 cm after switch on. It is OK after approx 10 mins.
• DP51 s/c after operating for half an hour.
• The fuse blows because RP02 heats up.
• Power supply fault.
• Excessive vertical size.
• Does not start up. Only displays the channel number. Power supply kit has been replaced.
• No vertical deflection. intermittently. No audio. intermittently.
• TP32 (BU508) and TL37 (BU508) fail immediately after switch on. (picture attached)
• U7 = 15V and there is no 12V voltage. A black band appears on the screen.
• Reluctant to start then produces a picture with reduced width.
• Picture hum and picture is slightly brighter at the top and bottom. (with circuit diagram extract) (CTV2195 tips)
• Crackling in sound and picture in UHF and VHF. No sound via scart.
• Standby LED flashes.
• No channel search.
• Switches to standby. after a few minutes.
• Shade appears behind the picture.
• Sound to zero level. When volume is increased, sound goes back to zero level. Random channel switch-over. (CTV2195 CATHAY repair tip)
• 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.
• No U system.
• Stations appear and disappear. Horizontal lines in picture.
• No horizontal or vertical deflection.
• Phase comparator fault on TV. Ok on secondary.
• Switches to standby after 6 or 7 minutes with or without aerial signal.
• Power supply fails at less than 100V.
• Picture is pulled at the top. Poor line sync. (extract of circuit diagram attached)
• Focus pot is defective.
• Power supply BU S2000 (BU508AT, BU508AF) S/C.
• No start up. can be switched on after some time in standby. Sound OK.
• PSU fails after start-up.
• The appliance pulsates 3 times then goes to safety mode.
• Adjustment of 5.5MHz min. or 4.43MHz min.
• Flyback lines. No brightness. No contrast.
• No colour, picture streaking.
• Poor line synchronisation. Picture is shifted up. (+ extract of circuit diagram)
• Poor contacts.
• RP11 blows.
• Goes into standby every quarter of an hour or half an hour.
• Low audio.
• Cannot be switched on or switched to standby. Standby indicator does not light up.
• At start up 90V makes 12V. After 2 mins picture and sound present but 90V reaches a maximum at 85V.
• PSU repair tip.
• After switching on the mains progamme indication in the display but no picture and no sound. (extract of circuit diagram attached)
• Poor picture alignment.
• White, bright picture, picture poorly distinguishable. (CTV2195 tips)
• Secondary protective circuits TV01 and TV02 disconnect intermittently.
• PSU fails immediately after switch on.
• TP32 heats up.
• Horizontal collapse.
• 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.
• On channels from 21 to 27 picture is ok, from 32 to 35 lines on picture and from 41 to 47 no picture.
• S2000 is s/c. Replaced with the original repair set, it still fails. (extract of circuit diagram attached)
• Image compressed horizontally. Insufficient width approx 1cm on left and right of screen.
• The appliance hums and the picture is unstable.
• The appliance crackles during low Gamme UHF.
• No TXT.
• Very snowy picture in UHF. Apparently the fault is at the level of the tuner UHF 4200.
• R82 (10R) on the tube base board fails.
• FBT ok at start up but dark screen except for 3 coloured lines in top third of screen. Sound and display of channels ok.
• No transmission in UHF (12V on pin 10 of the tuner connector).
• Picture width fault.
• Adjusting the white setting.
• Horizontal stripe (intermittently).
• Volume varies. (CATHAY - CTV2195 information)
• Appliance goes into PAL. Occasionally no display.
• No image content, only HF noise. (+ extract of circuit diagram)
• Does not come on from standby, red standby light comes on. TV01 and TV02 in the protective circuit respond.
• Vertical line.
• Secondary protective circuit TV01 and TV02 disconnects intermittently.
• Display appears after 15 secs, then pulsates on and off (no breaker circuit). (picture attached)
• Reduced vertical size.
• Switches to protection mode.
• Vertical deflection has collapsed to a bright line in the middle of the screen.
• No image, red raster and flyback lines visible. (picture attached)
• PSU does not always start after switch on via front control or RC.
• U1 = 60V instead of 90V.
• No start-up. (part of circuit diagram displayed)
• No picture. after a few minutes. Audio OK .
• No sensitivity in the tuning.
• The varicap voltage does not move.
• DP51 heats up.
• Is it possible to fit a TEA 2026C in place of a TEA 2026T ?
• Intermittent loss of sync. Blank raster. No audio. No LEDs.
• Reference oscillator beat adjustment: PAL decoder.
• There are 1300V present instead of 900V peak to peak on the collector of the TL37 (BU508ATB). This breaks after some time.
• No reception. via tuner.
• No 300V at collector of TP32. If collector is disconnected 300V appear.
• No start-up. No display.
• Line stage does not start up.
• RP23 and transistor (BU508A) have blown.
• The colour appears after a few minutes.
• The power supply does not start up. No standby
• Line output stage doesn't start up.
• Does not start up when cold. Audio , display OK.
• The PSU fails instantly. When this is replaced by the repair kit the same problem arises.
• No secondary voltage.
• Searches for channels continuously.
• No colour (intermittently). Line tearing.
• Start up ok. Picture and sound ok. After 15 minutes or more than one hour no picture but son ok. Horizontal white line.
• Power supply defective.
• Fails frequently when operating. (CTV2195 CATHAY repair tip)
• RP02 and power supply BU blow.
• On start up, black interference lines appear then the screen is white.
• No brightness on picture. Chroma present with vertical instability and no sound.
• Top part of the picture is too wide and bottom part is too narrow
• In normal charge, TP32 and TP38 switch off. The appliance functions without a charge.
• Fuse blows constantly.
• Approx one third of the top of the picture is crushed.
• Vertical amplitude is too low.
• E/W fault. (CTV2195 tip from CATHAY)
• 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.
• Lacks horizontal amplitude. Regulation does not function.
• No horizontal deflection.
• RP51 (0R22) blows intermittently.
• TEA 2026C is defective.
• RL41 O/C due to dry joints below connector BD01.
• Picture appears slowly. (CTV2195 tip from CATHAY)
• Negative picture. Distorted picture. OK via SCART .
• Adjusting Us= 108V.
• The sound and picture hum.
• No adjustment.
• Wide dark stripes on left side of picture.
• Snow in picture. in UHF.
• The appliance blows up on a very light background.
• Vertical foldover at bottom.
• No horizontal deflection. intermittently.
• No start up. PSU blocked.
• No colour. No shutdown with RC. (CATHAY - CTV2195 information)
• Line oscillating or tearing.
• TP32 and TP38 have a short circuit.
• Horizontal deflection and line oscillator failed. (with circuit diagram extract)
• No luminance.
• Interference lines in the top part of the screen.
• The appliance takes 2-3 minutes to start up.
• When warm flickers between picture and TXT. Characters keep popping up on screen
• Vertical line. in the centre.
• The luminance signal disappears occasionally.
• Vertical blue bar on centre of screen. No picture.
• 90V problem. RP51 heats up and cuts out. DP51 and CP51 ok. Brand new line transformer.
• Crackling in sound and picture in UHF and VHF. No sound in scart. (CTV2195 tip from CATHAY)
• Vertical lines at edge during EE operation and via AV. (+ extract of circuit diagram)
• Black screen. Display is lit. Intermittent sound. Fault occurs both via aerial and SCART.
• BU807 blows regularly. FBT and TEA2026 have been changed. (CATHAY - CTV2195 information)
• The power supply does not start up. All transistors have been changed.
• Dark screen. on the left.
• Picture flickers slightly from bottom to top. After removing display indication (control unit) picture is ok (less current). (extract of circuit diagram attached)
• The blue circuit is pale.
• Line instability.
• Power supply fuse blows. When it has been replaced, TV functions again for several days.
• PSU inoperative. (CTV2195 tip from CATHAY)
• 300V on the collector of TP32. Oscillates at its base but no voltage on the secondary.
• Can not be switched on from standby via RC.
• TP01 (BUT12A) fails after longer operating time
• Picture too small. at start-up.
• Standard CCETT adaptation.
• No light and the appliance cuts out.
• Fuse blows as soon as degaussing is connected.
• Poor startup.
• The linearity coil whistles.
• No search possible. TV switches off without the 10th, 20th and 30th channel.
• Screen blank. Dark picture.
• No picture on channel 99. (service info for CATHAY -CTV2195)
• IR receiver does not function.
• 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.