370625 / SBR [TV 36/37 (34-36) cm picture]

• No E/W correction.
• At switch on black screen followed by green bars in the middle of screen. A few seconds later screen is blue and snowy but no tuner reception. Tuner ok. (extract of circuit diagram attached)
• Linearity fault and picture foldover at bottom of screen. (+ extract of circuit diagram)
• Line transformer BUT11 blows after 5 mins.
• The picture is unstable and moves horizontally.
• Functions at start up then 5 to 10 mins after there is a flash on the screen and appliance stops completely. General switch is on off.
• Significant undulation of verticals when changing channels.
• When changing channels horizontal instability at top of picture during 1 or 2 secs. (part of circuit diagram displayed)
• Excessive picture flickering which varies according to picture content. (picture attached)
• Power supply goes into safety mode via secondary 32V.
• Does not always start up and occasionally begins to flash during operation.
• 3320 blows instantly. (extract of circuit diagram attached)
• CTV functions for 1 hour or 2 days.
• Becomes dead after 10 minutes in standby. When switched off, it starts up after 20 minutes. OK during reception.
• Electric arcs at the level of the tube socket and band on each side of the picture. Adjusting the line amplitude has no effect.
• Sound is normal but the picture type is not decoded.
• Motorboating noise from speakers. intermittently.
• No power supply on tuner.
• Picture drift.
• After operating for a few mins, channel goes to AUX or 1. Impossible to change channel from control panel or RC.
• N/S fault. 10cm black band at top and bottom of screen. No loading but voltages are ok.
• No start-up (intermittently).
• But 11 blows at start up. (370625 SBR repair tip)
• Poor vertical synchronisation. Weak contrast. (part of circuit diagram displayed)
• Too much THT when starting up. Flash of light on the screen.
• Switches off after a certain time. Control panel display is lit. Fault disappears when unplugging.
• Line BUT11 fails after a few days.
• Loss of channels as soon as TV stops.
• No picture, no sound and loud noise at switch on.
• Picture is narrowed half way up and pincushion on the picture.
• Memory loss on channels TVC14/110.
• No switch on when hot, LED remains off.
• No synchronisation.
• BUT 11 and fuse blow on switch on. (+ extract of circuit diagram)
• No sawtooth frame at output of TDA2579. (with circuit diagram extract)
• Blue screen at switch on, display not lit. No sound. (extract of circuit diagram attached)
• On the line circuit, the BUT11A is defective. (picture attached)
• Contrast changes. Vertical jitter in picture.
• BUT11A destroy.
• Dark screen (intermittently).
• Switches into safety after 5 minutes. E/W problem.
• Line amplitude too high, electrolytic capacitors ok. (370625 tips)
• No colour.
• Black bar in middle of screen.
• Front panel does not work. Sound increases to max at switch on or when changing channels. RC ok.
• BUT 11A destroyed after operating for one month.
• Does not display last channel at switch on. Blue screen half of the time at switch off.
• Frizzy lines on screen when cold.
• East/west problem. No east/west or line amplitude adjustment.
• Line BUT11 blows when changing channels. (+ extract of circuit diagram)
• Unstable horizontal amplitude.
• Wavy vertical picture and poor instability during first 5 mins when cold. (picture attached) (SBR - 370625 information)
• End stage BU blows at switch on.
• Value of voltages on CNX.
• BUT 11 and fuse blow at switch on. Value of resistors 3638 and 3639? (SBR - 370625 information)
• Horizontal stripe.
• Vertical green bar on left side of screen after a line fault. (370625 tips)
• The very high tension reaches the tube. The current reaches the plastic case.
• TV cuts out after 15 minutes. (picture attached)
• Sometimes at switch on power supply pulsates very quickly and noisily.
• Too much EHT. (extract of circuit diagram attached)
• Dead. after a few minutes.
• Curling on the picture outlines. (picture attached) (service info for SBR -370625)
• No start-up. No display.
• Appliance does not work with the remote control. Remote control is correct in the TV position. (370625 tip from SBR)
• Connection of a loop system to the TV.
• Blue dominance in LF.
• No colour. Replace the TDA 3590 appliance. Correct power supply. The sandcastle does 12MS instead of 10MS. Correct width.
• With a bar pattern, white flash with flyback line at start up then fluttering at the white level, then ok. G2 voltage increases during these flashes. Same on the picture.
• The line BUT11A blows. The appliance can function from one hour to eight days. (+ extract of circuit diagram)
• No tuner reception, snow in picture and no sound. Occasionally some reception.
• Flyback lines (intermittently). (extract of circuit diagram attached)
• The power supply stops for good when appliance is operating. (370625 tips)
• Problem in Canal Plus. Becomes B/W with decoder. OK with bright scenes
• Intense noise with beating. (370625 SBR repair tip)
• BU508A blows after working continuously for approx one hour.
• White picture after 15 mins. (with circuit diagram extract)
• At start up TEA 1039 blows after a week. (+ extract of circuit diagram)
• Unstable vertical picture, jumps and lines, then picture becomes ok but goes defective again. (picture attached)
• No picture, white screen with flyback line. Sound ok.
• Slight hum in loudspeakers in standby.
• No scanning. Horizontal white line. Very random problem. Solder joints ok.
• Switches off by itself (after a few minutes).
• OK for 2 to 3 hours then switches off.
• No start-up. No front display. (370625 tips)
• Distorted picture. (part of circuit diagram displayed)
• Slow start-up. (+ extract of circuit diagram)
• When put into standby a slight hum remains in the speaker. When restarted with the RC, standby light switches off and channel no. does not light up. Continuous hum.
• Line BU blows at start up. (once out of 3). C2320, 2324, 2325, R3321 have been changed. If start up is ok, appliance functions correctly. (picture attached)
• Tuning drifts (intermittently).
• No EHT. Sound ok.
• General switch on ON: the TV functions then after 3 to 5 mins there is a flash on the screen and everything stops. If the switch on OFF then is goes immediately to ON: dead.
• Does not start up in AV. Erratic display.
• Power transformer blows after TV is off for a long time.
• Motor boating noise in standby. Everything else ok.
• Vertical lines scrolling up and down the screen. Jagged verticals.
• Incorrect vertical linearity. (extract of circuit diagram attached)
• Jumps in the brightness or contrast. Occasionally stops then starts again.
• CTV remains in U setting on the display, the channels do not go through when opening or closing memory, 1st digit U 2nd digit G is lit up.
• No video. The screen is white for 30 minutes and the sound is correct.
• Line transistor (BUT11AF) blows at switch on or after a few mins.
• Occasionally and at switch on line BUT11A shorts.
• Rapid pulsation of the brightness, at the same time a horizontal line appears then disappears at the top of the screen.
• Supply voltage pulsates at channel switchover. Otherwise TV works normally.
• Picture is too wide, you do not see the M6 signal. (extract of circuit diagram attached)
• Curling on the verticals. (extract of circuit diagram attached)
• The TV functions for 10 days then cuts out. When left to warm up for 10 hours, no fault.
• At start up the picture is distorted through scanning. (service info for SBR -370625)
• Power supply fuse and BUT12 blow after 10 secs. Solder joints ok on the heating parts.
• Very strong moire effect and venetian blind effect. (extract of circuit diagram attached)
• PSU pulsates when TV cold producing a broken up sound. Front panel LEDs flash. No EHT. Fault disappears when 13J and 12G are unplugged towards deflector and CRT board. Fault disappears after heating up for 2 mins.
• TV ok but sound and brightness commands erratic when you go into standby via the RC and when appliance is started up by the RC. Everything returns to normal if you stop with the mains switch.
• Problem in transistor line 6320 BC337 at bottom of driver.
• Flyback line on a central band and on the entire height. (370625 tip from SBR)
• Slightly insufficient horizontal amplitude on right side. Picture lacks 1cm. (part of circuit diagram displayed)
• Power supply hum on picture and chroma nuance. (with circuit diagram extract)
• Intermittent flashes. (part of circuit diagram displayed)
• Memory loss on channels TVC14/110.
• Sometimes micro power cut or pulsating. (service info for SBR -370625)
• Dark picture. No brightness control. (part of circuit diagram displayed)
• Severe vertical linearity fault. (part of circuit diagram displayed) (service info for SBR -370625)
• Line time base BU11A blows after a certain time. (with circuit diagram extract)
• Picture is green in colour but normal in black and white.
• It is impossible to change the regulation. The MP locks.
• Picture outlines are distorted by streaks. Occurs mainly when cold.
• Vertical line.
• Green spot in centre of screen at switch off.
• No colour (intermittently). (+ extract of circuit diagram)
• Power supply is destroyed if the brightness or the contrast is activated.
• Vertical unstability when cold.
• BUT11AF blows after 5 secs. (extract of circuit diagram attached)
• Reduced horizontal size. (+ extract of circuit diagram)
• No picture. OK via SCART .
• Excess of white in picture, adjustment impossible. Colour and contrast ok.
• BUT11A heats up. Line start up is too weak. (with circuit diagram extract)
• Noisy power supply.
• Horizontal ripples on the picture. (+ extract of circuit diagram)
• When put into standby the sound cuts out but picture is still apparent in black and white but is fairly dark.
• Stripes on the picture or intermittent black and white picture.
• Blurred screen with picture shaped like a trapezium. Flashes.
• Only the TEA 1039 blows after working for a week.
• Defective R3462 (East/West). (with circuit diagram extract) (370625 tips)
• Very strong moire. (with circuit diagram extract)
• No display. Deflection is OK.
• Picture jitters very fast on some channels. Fault reduces for several minutes after switch on.
• In scart, Secam or Pal picture coming from a VCR is ok but with a satellite demodulator, it is black and white in Secam but colour in Pal. (part of circuit diagram displayed)
• PSU does not start up when cold.
• Corrective maintenance of the PSU.
• Intermittent flashes of light.
• Loud noise on sound at switch on. Picture rainbow colours flicker.
• Horizontal deflection is faulty. Jagged, unstable vertical lines (scrolling up and down the screen).
• The BUT 11 on the power supply is defective. (+ extract of circuit diagram) (370625 SBR repair tip)
• Insufficient EHT.
• Sometimes picture vibrates and FBT whistles excessively. (picture attached)
• Shuts down (after warm-up).
• Lines in picture. (part of circuit diagram displayed)
• Power supply modification (valid for a module with 90 degrees only).
• No picture. Black screen, frame disappears. Sound ok. (extract of circuit diagram attached)
• Some colours are dominant and power supply hum on picture. (+ extract of circuit diagram)
• Grey picture and no video with colour lines at top of screen. OK in scart but no signal; at pin 22 of IC6104. 12V OK on pin 13, -21.5V OK pin 6-7 on the contrary on pin 10 with or without aerial signal 0.118V instead of 8V.
• Remains on channels 0 and AV with control panel. (370625 tip from SBR)
• No EHT. Incorrect signal on pin 11 of TDA 2579. PSU ok. (part of circuit diagram displayed)
• White line in middle of screen. (with circuit diagram extract)
• Switches to standby.
• 5cm of picture missing at bottom of screen. (with circuit diagram extract)
• No picture (via SCART). (part of circuit diagram displayed) (service info for SBR -370625)
• Line BUT blows frequently. (service info for SBR -370625)
• On switch on, the picture is completely white with flyback lines then the screen is completely black. (picture attached)
• Occasionally white flash. Picture ok. (service info for SBR -370625)
• Line BU blows after approx 3 months.
• Power supply transformer blows after 5 mins.
• Vertical and horizontal picture instability.
• Line BUT11 blows after 15 mins. (picture attached)
• BU508 heats up abnormally.
• Blows fuse. at start-up. (SBR - 370625 information)
• Does not switch to standby.
• No G2.
• CTV does not function in manual. Impossible to open the memory and to change channels. Ok via RC.
• Occasionally line BU trips. (extract of circuit diagram attached)
• When appliance is switched on vertical instability. Picture trembles and 3cm wide coloured lines run down the screen. This disappears when appliance is warm.
• When changing picture the light reduces then returns to normal with another change of setup.
• Smoke from R3500, 6502 and 6501. (part of circuit diagram displayed)
• Display flashes. Noise in the sound and darker bars over the entire screen.
• Severe whistling on sound and picture.
• Switches to protection mode (after a few minutes).
• No display. Noise from loudspeaker at switch on.
• No tuner or scart reception. No channel display and no search. FBT ok, brightness present.
• BU blows or heats up too much.
• Screen becomes blue. Ok when G2 adjusted but then traces of flyback lines. Screen becomes blue again when signal is cut out. (370625 tip from SBR)
• No chroma in SECAM, ok in PAL. (+ extract of circuit diagram)
• Slight hum on vertical lines. (part of circuit diagram displayed)
• Black screen.
• Occasionally the picture disappears and the power supply pulsates. On the screen, flyback lines pulsate with the power supply.
• No picture. Audio OK . (part of circuit diagram displayed)
• Picture flashes quickly according to picture content. Line output transformer hisses rhythmically to the picture.
• E/W fault and purple spot at top of screen. (picture attached)
• When the TV is in standby only the sound is absent. Everything else still functions.
• Coloured circle in middle of screen and no start up when previously switched off by ON/OFF switch from standby. When switched off by ON/OFF switch colour circle remains for a long time.
• Line and raster distortion according to picture content. (with circuit diagram extract)
• At start up EHT noise which increases then decreases to remain steady at a normal value. No display and no sound but significant hum. Dark screen with EHT. (370625 SBR repair tip)
• No start up and motor boating sound.
• 5322 and R3320 blow. BU508 is always intact.
• When cold, small vertical jump and small horizontal stripes on the picture. (with circuit diagram extract)
• Picture and sound interrupted briefly with strong noise mostly in AV and at random.
• Switches off by itself (after warm-up).
• Pumps at switch on. After a few attempts CTV starts up and functions very well then after a few days power supply TDA and BUT 11 blow.
• The television set switches off after working for a moment. (picture attached)
• At switch on, no display and noise in the loudspeaker.
• Power supply BU blows at second or third switch on.
• General information.
• Black and white picture with 3cm green vertical bar on left hand side. (+ extract of circuit diagram)
• Wavy vertical lines. (part of circuit diagram displayed)
• TEA1039 only blows occasionally when TV starts up.
• BUT11 blows every 8 days. (with circuit diagram extract)
• Switches off by itself.
• Pulsates at switch on then is ok. Sometimes micro power cut when hot. (part of circuit diagram displayed)
• Red picture for 20 secs then normal when cold.
• Goes into safety via interface board.
• Pulsates.
• PSU trips or does not start up. Fault sensitive to shocks.
• No start up of the power supply. Remains in standby with line BU disconnected.
• Line BUT blows after a few mins. (picture attached)
• No RC functions.
• Deflection BUT11AF blows after 3 secs at switch on. (extract of circuit diagram attached)
• BUT 11 power supply blows after functioning for 4 days. (picture attached)
• R3462 on the East/West circuit blows.
• No reception.
• The IC 6300 is destroyed when the appliance starts up and the BUT11A may follow. (370625 tips)
• Vertical deflection IC or line transistor often blows.
• Tripping (when cold). (part of circuit diagram displayed)
• Occasionally picture flickering. Grey screen and flyback line. (extract of circuit diagram attached)
• Line BU blows when started up.
• No raster. Distorted audio (intermittently).
• Procedure to carry out the white balance.
• Unstable picture which fails and twists occasionally via scart. Everything ok via UHF aerial.
• Unstable top lines at switch on and when switching over channels. (picture attached)
• Audio module transistor blows after a month. (370625 tip from SBR)
• Power supply fault. (+ extract of circuit diagram)
• No start up. Very significant vibration.
• Stretched picture.
• Incorrect horizontal amplitude, bands on each side of screen.
• Hum in audio. Noise in picture. (picture attached)
• Slight dark waves running through the screen. Waves are not obvious but annoying. (part of circuit diagram displayed)
• Goes into safety mode when put into standby mode.
• Intermittent flash. (SBR - 370625 information)
• No colour after replacing line BU. (with circuit diagram extract)
• BUT11 and D6654 blow after 15 days.
• Picture trembling according to its content.
• Foldover at bottom of screen with a black part.
• Low contrast. (with circuit diagram extract)
• Blurry picture. Buzz in audio. (370625 SBR repair tip)
• Power supply BU and fuse blow at start up.
• Chatters during 30 secs at start up when cold. (picture attached)
• Slight vertical jitter for several minutes. No start up at cold.
• No start-up. (extract of circuit diagram attached)
• Impossible to memorise a new channel, search functions.
• No start-up from standby.
• Tube does not switch on. No sound. Appliance switches on and front panel display indicates the channels correctly.
• Venetian blind effect in picture. Moire effect.
• Power supply BUT 11 is destroyed at switch on. (picture attached) (service info for SBR -370625)
• Flyback lines or pulsating brightness when G2 is adjusted.
• E/W fault. (with circuit diagram extract)
• R3303 heats up slightly.
• R3462 burns out straight away. Voltages are correct. (picture attached)
• No picture. Sound OK. Tube heater lights up.
• Curling in picture.
• Cycles on/off.
• PSU fuse 1600 blows at switch on.
• Black bars. (+ extract of circuit diagram)
• PSU pulsates (intermittently). (extract of circuit diagram attached)
• Vertical, white line (0.5cm) in the middle of the screen. (with circuit diagram extract)
• Occasionally unstable horizontal amplitude. Shock sensitive.
• No 16V on pin 9 when line transformer disconnected. (extract of circuit diagram attached)
• Scanning BUT 11A is destroyed either when appliance is switched on or during function at any time. (picture attached)
• Lights up on key 29. Does not always respond to the codes of the RCU.
• Poor colour. (part of circuit diagram displayed)
• Safety test after repair.
• Power supply starts up then clicks 2 times.
• Severe whistling in sound and picture.
• No or poor synchronisation.
• BUT 11A 6322 EHT part is s/c. (with circuit diagram extract)
• No deflection. No line. No raster. Only display functions with or without RC.
• White screen with flyback raster. (part of circuit diagram displayed)
• Power supply pulsates in safety mode and no sound or picture. (+ extract of circuit diagram)
• Blue screen. No audio. Display OK . (extract of circuit diagram attached)
• Line BU blows. C2324 and C2325 have been changed.
• Changes channel on its own. Switches to B/W occasionally. Switches on by itself when in standby. (service info for SBR -370625)
• No colour in the picture which is ok. Vertical screen effect on the 3 base colours.
• The appliance does not start up. When switched on the transformer crackles for a moment then the noise stops.
• At switch on the verticals break up. Ragged verticals after 10 mins, vertical stability remains delicate according to the picture content. (part of circuit diagram displayed)
• E/W picture distortion: Picture is bent inwards as if pincushion problem but with no black appearance.
• Volume varies.
• No line scanning. Display ok.
• The LF amplifier blows periodically (T6502, T6501).
• Vertical collapse (intermittently). (with circuit diagram extract)
• Goes into PAL. Ok in test pattern, negative in video mode. Other functions ok.
• No audio.
• PSU pulsates. Switches to protection mode. (370625 SBR repair tip)
• R3320 smokes.
• No sound, picture or scanning. The display is ok.
• Poor sandcastle signal on output of pin 17 of the TDA 2579N5. The signal given by the oscilloscope is the line signal. (370625 tips)
• No picture. No tuner reception, tuner ok. (picture attached)
• No picture. (part of circuit diagram displayed) (370625 SBR repair tip)
• Picture appears slowly. Audio OK .
• 34V fails when connector 17G is connected onto the AST board.
• Horizontal linearity fault, picture compression at right hand side of CRT. (picture attached)
• No focus.
• Brightness varies.
• Remains blocked in standard I but functions in SECAM when passing via the scart.
• No picture stability, picture runs through. (picture attached)
• TEA1039 and fuse blow at switch on. (370625 tips)
• Space between the lines is too large and strong moire effect.
• Blocks in Pal. On connector 13 AST board. 5V in 13-2 L standard. 0V in 13-1. (with circuit diagram extract)
• PSU does not start up. Display ok. (370625 tip from SBR)
• Raster and line unstable. (+ extract of circuit diagram)
• Wavy picture. (+ extract of circuit diagram)
• Power supply goes into safety mode when 34V supplied to pin 2 on AST interface board.
• Black screen. With brightness, contrast and colour at max levels picture is slightly visible but extremely dim. Cloudy picture, no green. Focus control does not react.
• Corrective maintenance of the line scanning.
• Appliance blows from time to time and under shock conditions, but good solder joints.
• Smoke from R3500 in LF.
• Start up ok, dead after a few secs.
• At switch on fuse 1600 (1.6A) blows. (picture attached)
• Trips when cold. It is not possible to reproduce the fault by cooling the appliance. Functions normally after 10 minutes. (370625 SBR repair tip)
• Loss of channel memory.
• The picture is extremely distorted and unstable. Incorrect video.
• No red at output of TDA3562. After replacement the same. Ok in PSU. Blue and green normal.
• Excessive horizontal size.
• Stuck in standby. (with circuit diagram extract)
• BU 508 goes S/C in time base after a few hours. (with circuit diagram extract)
• No more video. Scanning and sound are correct but there is a black screen. (with circuit diagram extract)
• Flickering picture. (370625 tips)
• Strong moire with colour saturation.
• It takes 15-30 secs or even more for the picture to appear. Display lights up.
• Line transistor BUT11 6322 blows, almost immediate S/C. (+ extract of circuit diagram)
• Severe picture instability at switch on and humming sound. Everything returns to normal after a few mins. (extract of circuit diagram attached)
• Black and white picture. Picture shift, black bar and no colour. (part of circuit diagram displayed)
• Resistor 3320 burnt, no visible S/C.
• Vibrates in standby after 5 mins. (extract of circuit diagram attached)
• Tube cuts out with sparks on the pins of the RGB amplifier board. Visible arcs going into the ground.
• Colour flashes. (picture attached)
• Curling or small fine horizontal lines on the screen (BU508 in line). (part of circuit diagram displayed)
• On PSU BUT 11 fails regularly after operating for 2-3hrs. (part of circuit diagram displayed)
• Vertical line tearing.
• Flyback raster at switch on on the whole of the screen then occasionally disappears and comes back again before disappearing again after approx 20 secs.
• Vertical scanning is reduced to an amplitude of 3 or 4cm. (extract of circuit diagram attached) (370625 tips)