FELDBERGP7421SC 000P7421SC / SABA [TV]

• The appliance blows up on a very light background.
• Red is too pale. Pot PV50 does not react.
• Reduced horizontal size. (with circuit diagram extract)
• At start up 90V makes 12V. After 2 mins picture and sound present but 90V reaches a maximum at 85V.
• Service info: operations at power supply.
• The linearity coil whistles.
• No search possible. TV switches off without the 10th, 20th and 30th channel.
• Very poor sound via HF but very good when going through scart. (service info for SABA -FELDBERGP7421SC)
• No start-up from standby with RC.
• No RC functions.
• TP32 and TP38 have a short circuit.
• Switches to standby (intermittently).
• Adjusting the vertical and horizontal centering.
• No secondary voltage.
• Spare part no. info: Power supply repair kit.
• 90V problem. RP51 heats up and cuts out. DP51 and CP51 ok. Brand new line transformer.
• Horizontal deflection and line oscillator failed. (part of circuit diagram displayed)
• Service info: operation at power supply.
• No storage on all channels. The same channel on all program sites. (service info for SABA -FELDBERGP7421SC)
• Negative picture. Distorted picture. OK via SCART .
• No brightness on picture. Chroma present with vertical instability and no sound.
• The appliance crackles during low Gamme UHF.
• Flyback lines. No brightness. No contrast.
• No storing on all channels. Same stations on all channel sites. (+ extract of circuit diagram)
• RP23 and transistor (BU508A) have blown.
• Snow in picture. in UHF.
• No picture or sound. At switch on display indicates a channel but no control is possible.
• Power supply fuse blows. When it has been replaced, TV functions again for several days.
• Main voltage adjustment.
• Dark screen, 5 or 6 coloured lines at the top of the screen. Picture returns if appliance is hit. (FELDBERGP7421SC SABA repair tip)
• No vertical synchronisation.
• Fuse blows constantly.
• Part no. info: PSU repair kit.
• Excessive green.
• TP01 (BUT12A) fails after longer operating time
• Blank screen.
• Adjusting the band filter (with UHF IF filter).
• BU807 (TL54) cuts out.
• Volume varies.
• Vertical size adjustment.
• Adjusting the screen grid voltage (grey setting).
• Vertical picture position shifts intermittently upwards approx 2 cm after switch on. It is OK after approx 10 mins.
• Slight hum of vertical bars.
• Reluctant to start then produces a picture with reduced width.
• 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.
• Can not be switched on from standby via RC.
• Adjusting the grey value: picture tube board.
• Part no. info: PSU repair kit.
• Slow start-up.
• Poor picture alignment.
• There are 1300V present instead of 900V peak to peak on the collector of the TL37 (BU508ATB). This breaks after some time.
• No function display. CTV functions via the front panel and the RCU. (FELDBERGP7421SC SABA repair tip)
• Setting the vertical amplitude. (FELDBERGP7421SC tips)
• Poor vertical and horizontal amplitude with slight waving at sides, when cold. Everything returns to normal within 5 mins.
• PSU does not start up with a mains voltage more than 200V, ok with a voltage less than or equal to 200V.
• Unstable lines and there is an interference line at the base of TP32.
• Crackling in sound and picture in UHF and VHF. No sound in scart.
• Channel search does not stop. Appliance goes to sleep timer and switches off.
• No picture. No sound. Programs can also be switched over.
• Part no. info: PSU repair kit. (service info for SABA -FELDBERGP7421SC)
• Secondary protective circuits TV01 and TV02 disconnect intermittently.
• Station search does not stop. Appliance goes to sleep mode and turns off. (part of circuit diagram displayed)
• Snow, no voltage on Varicap.
• FBT ok at start up but dark screen except for 3 coloured lines in top third of screen. Sound and display of channels ok.
• The power supply does not function with load. (service info for SABA -FELDBERGP7421SC)
• R82 (10R) on the tube base board fails.
• No brightness (only outlines can be recognised). Colour is ok. (FELDBERGP7421SC tip from SABA)
• Sound fizzles.
• Does not start up when cold. Audio , display OK.
• No start-up. Display OK . (FELDBERGP7421SC SABA repair tip)
• No storage on all channels. Same channel on all program sites.
• PSU fails after start-up. (service info for SABA -FELDBERGP7421SC)
• Mains switch no start up. (extract of circuit diagram attached)
• Programmes memory is lost once a month.
• Spots of colour on the screen.
• Picture appears slowly.
• No horizontal or vertical deflection. (FELDBERGP7421SC tip from SABA)
• Reduced vertical size.
• Channel search does not stop. Appliance switches to standby and switches off.
• Starts to pulsates. Sound, picture and display present.
• Searches for channels continuously.
• Picture shifted vertically.
• Part no. info: PSU repair kit.
• When appliance is switched on mains BU fails immediately.
• Display appears after 15 secs, then pulsates on and off (no breaker circuit). (extract of circuit diagram attached)
• White, bright picture, picture poorly distinguishable. (service info for SABA -FELDBERGP7421SC)
• 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.
• Horizontal stripe (intermittently).
• No speacial channels. Appliance works only up to channel 69. Display for brightness shows L (= English mode) instead of B.
• Cannot be switched on or switched to standby. Standby indicator does not light up.
• Picture has jagged edges on every channel. (part of circuit diagram displayed)
• PSU does not always start after switch on via front control or RC.
• Bright picture. at top and bottom.
• Interference lines in the top part of the screen. (FELDBERGP7421SC SABA repair tip)
• No colour.Flag-effect.
• Service info: operations at power supply.
• The fuse blows because RP02 heats up.
• No switch on. Standby indicator lights up.
• No storage on all channels. The same channel on all program sites.
• Fuse blows at random, even at switch off.
• Reference oscillator beat adjustment: PAL decoder.
• E/W fault.
• No colour (intermittently). Line tearing.
• No erasing possible.
• No light and the appliance cuts out.
• Service info: operations at power supply.
• Starts up after 3 mins.
• Standard CCETT adaptation.
• Low hum of vertical lines. (part of circuit diagram displayed)
• Loud echo on all channels. (with circuit diagram extract)
• No brightness. Three RGB colour bands on left and right of the screen.
• U1 is instead of 84-90V only approx. 60V. Current consumption is over 100W.
• Contrast average value is too high.
• Loud noise, if appliance is switched to standby.
• Part no. info: PSU repair kit.
• No picture. Vertical coloured lines. Raster problem.
• Does not start up. Only displays the channel number. Power supply kit has been replaced.
• Wide dark stripes on left side of picture.
• Switches to protection mode. after start-up. (extract of circuit diagram attached)
• Picture flickers and stripes in the picture.
• No picture. after a few minutes. Audio OK .
• Sound purrs when tuning, picture is correct. Sound is possibly correct but picture disappears.
• When warm picture lifts from the bottom and narrows at the top, black lines at the bottom of the screen.
• No vertical deflection. intermittently. No audio. intermittently.
• Line oscillating or tearing.
• Insufficient picture width, poor lines visible on screen
• Vertical centre adjustment.
• The power supply is destroyed.
• No functions. Standby LED is not visible.
• IL03 (TEA2026) blows up when the appliance goes into AV on TV 42cm.
• Intermittent loss of sync. Blank raster. No audio. No LEDs.
• No vertical deflection. (FELDBERGP7421SC tip from SABA)
• Part no. info: PSU repair kit.
• Volume uncontrollable.
• No command signal on the IL03.
• TL19 fails in line output stage.
• High channels cannot be stored. Search functions only from 2 up to 68.
• Crackling in sound and picture in UHF and VHF. No sound via scart.
• No start-up. No display.
• Switches to protection mode. intermittently. (service info for SABA -FELDBERGP7421SC)
• The luminance signal disappears occasionally.
• No picture. Sound and display are OK.
• Sound is always at max even if appliance displays volume with 00.
• Vertical foldover at bottom.
• Power supply fails at less than 100V.
• TP29 fails after switch on.
• Vertical lines on edge in EE-mode and via AV.
• When switching on BU508A and RP11 fail after 2 secs. (FELDBERGP7421SC tip from SABA)
• Strong jagged edges on all channels.
• Only switches on after 70 secs. After start up everything is ok.
• Channel search does not stop. Appliance goes to slumber switching and switches off.
• Picture width fault.
• No start function via RC. With mains switch appliance switches into standby. (extract of circuit diagram attached)
• Sometimes switches over by itself.
• TP32 heats up.
• Deprogrammes approx every 4 to 5 months.
• Ghosting effect.
• Line stage does not start up.
• No picture in UHF, voltage for band change and tuning is OK.
• No R-Y/B-Y signal from PAL decoder. Positive line pulse at pin 5 of decoder too low. (+ extract of circuit diagram)
• No colour. (FELDBERGP7421SC SABA repair tip)
• No 300V at collector of TP32. If collector is disconnected 300V appear.
• Does not switch on. No standby. (FELDBERGP7421SC tip from SABA)
• Poor vertical synchronisation.
• Poor contacts.
• Vertical IC blows repeatedly after a few days.
• After switch on, vertical centering is shifted intermittently upwards approx. 2 cm; it goes to normal position after approx. 10 minutes.
• Picture flickers slightly from bottom to top. After removing display indication (control unit) picture is ok (less current). (picture attached)
• Approx one third of the top of the picture is crushed. (SABA - FELDBERGP7421SC information)
• No R-Y/B-Y signal from Pal-decoder. Positive line pulse at pin 5 of decoder is too low.
• TL19 fails in line ouptut stage. (FELDBERGP7421SC tip from SABA)
• S/C in PSU. (with circuit diagram extract)
• The display is incorrect and PE appears. (SABA - FELDBERGP7421SC information)
• Standby flickers. (FELDBERGP7421SC tips)
• Switches off intermittently or does not switch on at all.
• PSU fails immediately after switch on.
• Adjusting Us= 108V.
• The power supply does not start up. All transistors have been changed. (FELDBERGP7421SC tips)
• Poor display.
• RP02 and power supply BU blow.
• RP02 burns at switch on and destroys TP32 S2000A1.
• No 90V, RP51 burns. BU807, BU508.
• Screen blank. Dark picture.
• Coloured tinge in picture.
• Intermittent loss of synchronization.
• No R-Y/B-Y signal from PAL decoder. Positive line pulse at pin 5 of decoder too low. (with circuit diagram extract)
• Appliance goes into PAL. Occasionally no display.
• Both vertical and horizontal synchronization instability.
• Picture too small. at start-up.
• PAL run time decoder adjustment - PAL decoder.
• Line output stage doesn't start up.
• The appliance crackles and the picture framing is incorrect.
• Service info: work at power supply.
• Loss of sync/raster/sound. Display goes off.
• IR receiver does not function. (SABA - FELDBERGP7421SC information)
• Black screen. Display is lit. Intermittent sound. Fault occurs both via aerial and SCART. (SABA - FELDBERGP7421SC information)
• Value of the resistor of the chopper power supply transistor emitter.
• Contrast and colour are excessive at preset condition.
• Power supply, fuses, BUs, etc, blow each time appliance is switched off by ON/OFF switch.
• Picture appears slowly. Display OK .
• No image, red raster and flyback lines visible. (picture attached)
• Top part of the picture is too wide and bottom part is too narrow
• Unstable luminance when the appliance is warm.
• Unlinear V. Bright stripe 3cm from top of the screen.
• The line framing is incorrect.
• Poor line synchronisation. Picture is shifted up. (picture attached) (SABA - FELDBERGP7421SC information)
• Black band at bottom of screen over approx 8cm. Picture has shifted to the top.
• The sound and picture hum.
• Dark screen. on the left.
• No reception on band I, or only picture flickering.
• No sensitivity in the tuning.
• Shade appears behind the picture. (service info for SABA -FELDBERGP7421SC)
• No display. TV functions well. Channel change over ok.
• Phase comparator fault on TV. Ok on secondary. (service info for SABA -FELDBERGP7421SC)
• DP51 s/c after operating for half an hour.
• No horizontal deflection. intermittently.
• No picture. Flyback lines. at top. Audio OK .
• Image compressed horizontally. Insufficient width approx 1cm on left and right of screen.
• Picture spraying on band I (heat dependent at DP51). (+ extract of circuit diagram)
• On channels from 21 to 27 picture is ok, from 32 to 35 lines on picture and from 41 to 47 no picture.
• In normal charge, TP32 and TP38 switch off. The appliance functions without a charge.
• No video or scanning. Channels are displayed.
• 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.
• Stations appear and disappear. Horizontal lines in picture.
• Secondary protective circuit TV01 and TV02 disconnects intermittently.
• Vertical amplitude is too low.
• Vertical lines at edge during EE operation and via AV. (extract of circuit diagram attached)
• No picture, no sound - PSU is switched off.
• Picture is pulled at the top. Poor line sync. (+ extract of circuit diagram)
• Strong jagged edge on all channels.
• Focus adjustment.
• Vertical blue bar on centre of screen. No picture.
• The PSU fails instantly. When this is replaced by the repair kit the same problem arises.
• The picture is blurred (spot at the bottom of the screen).
• No adjustment. (FELDBERGP7421SC SABA repair tip)
• No reception. via tuner.
• Faint blue picture with no picture content and flyback lines. (+ extract of circuit diagram)
• Distorted picture. Strong streaking.
• Transistor BU508 fails repeatedly.
• RC part number. (service info for SABA -FELDBERGP7421SC)
• Loud audio.
• Only switches on occasionally, but without picture and sound. Occasionally very high switch on current consumption.
• No videotext mode.
• Lacks horizontal amplitude. Regulation does not function.
• No R-Y/B-Y signal from Pal-decoder. Positive line pulse at pin 5 of decoder is too low.
• TP32 (BU508) becomes defective after appliance turned ON/OFF several times. (extract of circuit diagram attached)
• Picture predominantly red in SECAM. Ok in PAL via scart.
• Dark screen.
• Power supply defective.
• The 108V voltage varies (U-system).
• Normal in black and white. In chroma, red of picture is green, blue is red and green is blue.
• Dark picture. (service info for SABA -FELDBERGP7421SC)
• Voltages from FBT gradually decrease then line BU S2000 blows after operating for 15 mins.
• At start up no line scanning or raster, TV displays PR. After approx 30 mins TV starts up.
• Picture drop out and development of smoke. A "rainbow" is visible in the picture. (SABA - FELDBERGP7421SC information)
• No storage on all channels. The same program on all program sites.
• No colour. No shutdown with RC.
• RC part number.
• Channel storage is erased.
• Fails frequently when operating.
• Is it possible to fit a TEA 2026C in place of a TEA 2026T ?
• RP51 (0R22) blows intermittently. (service info for SABA -FELDBERGP7421SC)
• Poor reception. in VHF.
• Dark picture. after a few minutes. (FELDBERGP7421SC tips)
• Channel search does not stop. Appliance switches to standby, then turns off.
• No colour.
• 300V on the collector of TP32. Oscillates at its base but no voltage on the secondary.
• Storing channels.
• Dead.
• The channels unkey after a while.
• The picture blows up and the bottom of the screen is bright.
• Picture is dark or partially ther.
• Switched-mode power supply (SMPS) does not start up. (+ extract of circuit diagram)
• Vertical deflection has collapsed to a bright line in the middle of the screen.
• The appliance switches off for a short time and back on again. (picture attached)
• S2000 is s/c. Replaced with the original repair set, it still fails. (picture attached)
• No start up. PSU whistles even when secondary side disconnected.
• Power supply fault. TP37 and TP32 have a short circuit and occasionally TP38.
• Switches to protection mode.
• No memory on any channel. Same station on every program place. (+ extract of circuit diagram)
• 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.
• Replacement kit of thyristor ESM740/G1/G2.
• Poor vertical synchronisation. Picture shifted vertically. at top. (extract of circuit diagram attached)
• The varicap voltage does not move.
• After changing the battery, how do you adjust the channels without remote control IR?
• Rainbow effect in the centre.
• Switches over by itself to "Secam L".
• Sound and picture cut out, display for 30 secs.
• RC part number.
• No colour in PAL and SECAM.
• DP51 heats up.
• Vertical line. in the centre.
• Goes into standby every quarter of an hour or half an hour.
• The power supply is correct without a load (U1 is up). There is a complete stop in the load.
• Channels below 30 cannot be received (chassis ICC4).
• High contrast.
• Purity spot and scanning are incorrect.
• The power supply does not start up. No standby
• Noise on channel 09 (band I) - colour picture. (picture attached)
• Vertical bar.
• Sound fizzles.
• Vertical collapse (intermittently).
• 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.
• No picture. No audio. No channel display.
• Loud noise, if appliance is switched to standby. (SABA - FELDBERGP7421SC information)
• Picture hum and picture is slightly brighter at the top and bottom. (+ extract of circuit diagram)
• Sound fizzles.
• Standby indicator flashes.
• Displays PR and does not start
• No reception at band I, or image flickering only. (+ extract of circuit diagram)
• 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).
• General information. (FELDBERGP7421SC tip from SABA)
• Station search does not stop. Appliance switches to standby and turns itself off. (extract of circuit diagram attached)
• TEA 2026C is defective.
• Systematic failure of TL54. At switch on TEA2026 has been changed.
• Poor startup.
• 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 image content, only HF noise. (extract of circuit diagram attached)
• RC part number.
• Adjusting the band filter (with VHF IF filter).
• BU807 blows regularly. FBT and TEA2026 have been changed.
• Start up ok. Picture and sound ok. After 15 minutes or more than one hour no picture but son ok. Horizontal white line.
• Switches to standby. after a few minutes.
• The appliance takes 2-3 minutes to start up.
• No luminance.
• RC part number.
• After switching on the mains progamme indication in the display but no picture and no sound. (picture attached)
• Setting the PAL amplitude and the PAL phase: PAL decoder.
• Excessive brightness.
• No TXT.
• Excessive vertical size.
• Focus pot is defective.
• Does not come on from standby, red standby light comes on. TV01 and TV02 in the protective circuit respond.
• The blue circuit is pale.
• No tuning.
• Picture is dark. When Ug2 is completely there, a bit of the picture is present.
• The colour appears after a few minutes.
• Sound has shifted, nasal. Correct tuning and picture. Sound ok in scart.
• Channels from 21 to 32 come through well but with lines and nothing comes through from 41 to 53.
• No R-Y/B-Y signal from Pal-decoder. Positive line pulse at pin 5 of decoder is too low.
• The appliance pulsates 3 times then goes to safety mode.
• Black picture with 10cm of RGB horizontal lines over the whole screen.
• No horizontal deflection.
• No start up or reset.
• Power supply breakdown due to a volt-rise of the power supply kit.
• Switches to standby after 6 or 7 minutes with or without aerial signal. (FELDBERGP7421SC tip from SABA)
• RP11 blows.
• Adjusting the screen grid voltage: picture tube board.
• U7 = 15V and there is no 12V voltage. A black band appears on the screen. (SABA - FELDBERGP7421SC information)
• Coloured flyback lines and poor picture.
• No system adjustment. (FELDBERGP7421SC SABA repair tip)
• No transmission in UHF (12V on pin 10 of the tuner connector).
• RC part number.
• Horizontal collapse.
• Adjusting the white setting.
• Noisy sound or no sound at all.
• U Varicap = 20V and will not change.
• Intermittent loss of sync, a blank raster, no sound, switching to standby and the LED channel display going off.
• 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 start up. PSU blocked.
• The appliance hums and the picture is unstable.
• No colour, picture streaking.
• No function, standby point is not visible.
• Muted audio.
• No scanning. Display ok.
• No memory on any channel. Same station on every program place. (extract of circuit diagram attached)
• Strong jagged edge on all channels.
• Service info: works at power supply. (service info for SABA -FELDBERGP7421SC)
• 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.
• Appliance does not function with the mains switch then starts up again with another button.
• TL54/TP32 are destroyed.
• Faint hum from loudspeaker in standby.
• Sound to zero level. When volume is increased, sound goes back to zero level. Random channel switch-over.
• No start up. can be switched on after some time in standby. Sound OK.
• No picture. Fusible resistor RP47 (0R22) in U2 13V-rail blows repeatedly.
• Vertical line.
• Saving the analog values.
• No start-up. (part of circuit diagram displayed) (service info for SABA -FELDBERGP7421SC)
• Tripping.
• Reference oscillator (4.43MHz) adjustment - PAL decoder. (FELDBERGP7421SC tip from SABA)
• No functions. (part of circuit diagram displayed)
• Cannot be switched on or switched to standby. Standby indicator does not light up.
• Line stage does not start up.
• No picture, no sound and programme display does not light up.
• On start up, black interference lines appear then the screen is white.
• Does not start up. Standby LED switches off. (FELDBERGP7421SC tips)
• Service info: works at power supply.
• No start-up (intermittently). (extract of circuit diagram attached) (service info for SABA -FELDBERGP7421SC)
• Noisy sound in SECAM. OK in PAL.
• Part no. info: PSU repair kit.
• Line BU (BU508) becomes hot and blows. At base of BU there are double pulses. (FELDBERGP7421SC tips)
• RC part number.
• RL41 O/C due to dry joints below connector BD01. (FELDBERGP7421SC tips)
• Contrast and brightness cannot be adjusted properly. (part of circuit diagram displayed)
• TL54 (BU807) becomes very hot after a few mins and blows. Normal picture.
• No picture. Check the signal on pin 10 of IT20.
• Very snowy picture in UHF. Apparently the fault is at the level of the tuner UHF 4200.
• TP29 fails after start-up.
• RC part number. (FELDBERGP7421SC SABA repair tip)
• Switches to standby. after a while.
• Station search does not stop. Appliance switches to standby and then turns itself off. (picture attached) (FELDBERGP7421SC tips)
• Image noise in upper channels (e.g. channel 60, 99) only. (part of circuit diagram displayed)
• PSU inoperative.
• When cold, no sound and no line amplitude then finally starts up.
• No U system.
• Strong jagged edges on all channels.
• Station tuning disappears.
• The picture is delayed by a few minutes.
• Power supply fault.
• Content of PSU repair kit. (service info for SABA -FELDBERGP7421SC)
• No channel search.
• No audio.
• Too much contrast, cannot be adjusted to less. (picture attached)
• Setting 5.5MHz min.
• TP32 (BU508) and TL37 (BU508) fail immediately after switch on. (extract of circuit diagram attached) (service info for SABA -FELDBERGP7421SC)
• Standby light flashes, fuse blows. RP11 and TP32, BU508 fails.
• The appliance goes to safety mode and mute.
• U1 = 60V instead of 90V.
• Standby LED flashes.
• Part no. info: PSU repair kit.
• Adjustment of 5.5MHz min. or 4.43MHz min.
• TP32 in the PSU is s/c.
• 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.
• Tuning voltage drifts.
• Low audio.
• When warm flickers between picture and TXT. Characters keep popping up on screen
• No display. Appliance starts.
• Power supply stops occasionally, approx after 1/2 hour (very irregular).
• Part no. info: PSU repair kit.
• Fuse blows as soon as degaussing is connected.
• Horizontal deflection is missing. Protective circuit disconnects. Standby point flashes.
• Hesitant start up. Mains button must be pressed several times. If appliance runs, fails again most of the time after a few mins.
• Vertical lines are distorted horizontally. E/W equalizer can not be adjusted correctly.
• No special channels adjustable (channels only until 69). (picture attached)
• No UHF channels.
• Line instability.
• No R-Y/B-Y signal from Pal-decoder. Positive line pulse at pin 5 of decoder is too low.
• RP61 burns out.
• PSU repair tip.
• Power supply BU S2000 (BU508AT, BU508AF) S/C.
• Picture is bright and white with flyback lines. (with circuit diagram extract)
• Black band on one part of the screen and interference.
• The picture shifts towards the bottom of the screen.
• No high channels can be requested.
• No picture on channel 99.
• TP32 fails at switch on. (part of circuit diagram displayed)
• Strong ghosting on every channel. (+ extract of circuit diagram)
• Horizontal centre adjustment.
• Loud noise, if appliance is switched to standby. (FELDBERGP7421SC tip from SABA)
• No R-Y/B-Y signal from the Pal decoder. The positive line pulse at pin 5 of the decoder is too low. (picture attached)