54318730 / SCHAUBLORENZ [TV (Standard)]

• Line BU voltage = 140V. Value of capacitor C701 (in PSU) illegible. Still no display if line BU disconnected. (picture attached)
• Horizontal synchronisation fault even after replacing TDA8372. Weak adjustment with pot R634. Line synchronisation OK. Comparator OK. Horizontal linearity is OK. (+ extract of circuit diagram)
• Picture too big. (extract of circuit diagram attached)
• Picture and sound missing. Via scart socket with video recorder OK (picture attached)
• Noise in picture. Poor horizontal synchronisation.
• Reduced raster size. (extract of circuit diagram attached)
• Brightness differs between left and right hand side of the screen.
• Stops after 5 seconds. No standby LED. (picture attached)
• PSU doesn't start up when cold. (picture attached)
• Impossible to adjust synchronisation. Picture shifted towards left. Right side of picture reduced by 8cm. (picture attached)
• No picture (intermittently).
• Time constant switching over only occurs on memory sites 37 to 39 and AV.
• Eliminate safety mode of PSU.
• At switch on, functions but with no picture. By pressing the CRT module it unblocks and the picture appears. Predominant colour depends on the pressure used.
• Horizontal stripe. in the centre.
• Intermittently dead. (with circuit diagram extract)
• Output transistor (S2000) fails when started from cold.
• Cuts out after switch on, soft hum from the speakers in standby mode.
• Line transformer starts up but no display, nothing on the screen and no sound. (picture attached)
• No TXT.
• High voltage build up for short time then PSU switches off. (extract of circuit diagram attached)
• Power supply seems to remain in safety mode. (+ extract of circuit diagram)
• No raster sync in HF. Ok in scart. (with circuit diagram extract)
• Display flashing and rattles at switch on. (+ extract of circuit diagram)
• As described in the manual it is possible to operate the video recorder on all program places through the aerial. But some appliances only change over on channels 37-39.
• Dark picture. on the right. (with circuit diagram extract)
• Centre of snowy picture is darker than edges. (+ extract of circuit diagram)
• From a cold start line output stage transistor fails.
• Horizontal collapse. after a while. (extract of circuit diagram attached)
• Will not select text, or will only select mix or full text but not both, various other functions faulty.
• Picture tearing.
• Illegible display. (extract of circuit diagram attached) (54318730 SCHAUBLORENZ repair tip)
• Line transistor S2000AF defective at switch on from cold. (picture attached)
• Instructions on how to put appliance into Service-Mode.
• Random operation commands.
• White screen, horizontal lines without video signal. OK on scart output T971 OK IC950 OK. No beam limiter on 15 of IC950. Flash on the screen when changing channels.
• Does not go into TXT mode. Mixed mode possible.
• Vertical, bright stripe faintly visible in the right third of the picture.
• Automatic B/G-L detection does not work correctly with the Nicam sound carrier (TF1, FRANCE 2).
• Blue, vertical stripe in the right third of the picture.
• No synchronisation during the first few mins. (+ extract of circuit diagram)
• Poor shading of picture, dark on one side and light on the other. (part of circuit diagram displayed) (SCHAUBLORENZ - 54318730 information)
• Can be switched to standby only if power plug is pulled out. (54318730 SCHAUBLORENZ repair tip)
• Line frequency changes downward (squeaking, whistling).
• Starts with noise (approx. 2-3 seconds), then it operates normally. (+ extract of circuit diagram)
• At Power On standby LED switches off immediately after switching on.
• White, horizontal lines at the top of the picture. Lines decrease after a while but never disappear completely.
• No functions. Red LED does not flash.
• White screen. Flyback lines.
• Power supply defective after a few days. (part of circuit diagram displayed)
• Unstable picture. (picture attached)
• Only standby LED lit. LED switches off at switch on then no function.
• After transporting an appliance, the first time it starts up there may be distorted playback of colour (flickering, drop out or stripes) and/or defective teletext playback.
• Picture is too wide. E/W distorted.
• PSU is defective. 300V is present.
• HV arcing. (part of circuit diagram displayed)
• Picture with vertical and horizontal lines (when cold).
• In a grey area - independent of colour saturation - you can see 2 vertical zones approx 15cm wide, greeny blue in colour with coloured edges. (54318730 tips)
• Does not go into text mode, mix mode is not possible.
• Defective linearity.
• Especially when cold some channels are not in the French standard. They remain in FM sound and inverted video. When warm and when changing programme suddenly picture and sound appear correctly. (part of circuit diagram displayed)
• Shuts down. (part of circuit diagram displayed)
• No picture content. Picture is greyish. (part of circuit diagram displayed)
• Low brightness. Picture too big.
• Poor audio.
• Occasionally blue screen. Picture ok when G2 adjusted then disappears again. When pressed too much picture remains incorrect then disappears.
• No start-up (when cold).
• Ok with signal. Without signal: unstable line frequency, line stage transformer makes a loud whistling noise and T511 (scanning transistor) shorts. (with circuit diagram extract)
• Black picture. Sound OK. Picture is OK after restart. (extract of circuit diagram attached)
• After approx 20 mins colour TV switches off. (54318730 tips)
• Programmes change by themselves. RC is OK.
• Does not switch to standby. (extract of circuit diagram attached)
• Pulsating picture. (part of circuit diagram displayed)
• After the appliance is switched off a large spot of light appears for several seconds in the middle of the screen. (with circuit diagram extract)
• Vertical IC fails. (with circuit diagram extract)
• No functions. after a while.
• Hums at switch on. (picture attached) (54318730 tip from SCHAUBLORENZ)
• Picture with a 10cm vertical band on the right side. Negative picture behind this black band.
• Intermittently line transistor defective at start up. Fault also occurs intermittently in channel search or when switching to another channel. Once appliance runs, it runs well.
• Stuck in standby; RC ineffective. Stanby LED flickers. (with circuit diagram extract)
• AV correction.
• Blocked control processor.
• Excessive brightness. Flyback lines. (+ extract of circuit diagram)
• Bright raster. Flyback lines.
• If switched to standby, appliance pulsates and can be heard in loudspeakers. (+ extract of circuit diagram)
• No start-up. (+ extract of circuit diagram) (54318730 SCHAUBLORENZ repair tip)
• Grey picture at switch on and sound which disappears after 15 mins. Grey screen with frizzy line on the sides when pressing G2.
• Goes into safety mode at switch on. If FBT is unsoldered then HT is re-established. No apparent S/C in secondary of FBT. (part of circuit diagram displayed)
• Poor PSU start-up or BU defective. (picture attached)
• Transistor T701 fails when appliance is switched off and on.
• Switches off completely after switch on. No standby function. (extract of circuit diagram attached)
• Channel TF1 (channel 22) does not hold in SECAM: remains in PAL. The other channels are normal. (54318730 tip from SCHAUBLORENZ)
• Does not start up each time. When it functions, whistling and modulation of picture. This gets less in time.
• Picture shifted horizontally. (extract of circuit diagram attached) (service info for SCHAUBLORENZ -54318730)
• Buzzing at start-up.
• High voltage runs high. Flashover all over.
• Black bars on the bottom of picture. If V-amplitude is altered, picture disappears on the bottom. (part of circuit diagram displayed) (54318730 tips)
• E/W-fault.
• Approx 20cm wide dark area in centre of picture and line tearing.
• Line BU is abnormally hot.
• No picture. on lower half screen. (+ extract of circuit diagram)
• Stuck in standby.
• One side of picture is black.
• When the appliance is switched on it goes into undefined operating conditions ie. in spite of correct operating voltages the appliance has eg. no picture, no sound, no display etc.
• Hum bars, especially on yellow or orange background.
• At switch on, lights light up for an instant, voltage which ought to reach 145V increases to 60V but then goes back to 0V. (part of circuit diagram displayed)
• No audio (when cold).
• Poor PSU start up. Severe crackle in the loudspeaker.
• Intermittent no image or yellow colouring. Knock sensitive. (extract of circuit diagram attached)
• EHT is heard starting up then everything stops 4 secs later.
• Vertical or horizontal picture shaking both when hot and cold. (with circuit diagram extract)
• Intermittently line tearing in the middle (approx. 20cm wide). (with circuit diagram extract)
• Vertical lines. No colour. after a while. (service info for SCHAUBLORENZ -54318730)
• Picture rolls. when cold. (extract of circuit diagram attached)
• Remains in standby. Starts up when wiper forced. 88 on display. No picture and no sound. Goes into standby as soon as switch is released. (part of circuit diagram displayed)
• Only snow in the picture, after changing the tuner the fault is still there.
• Reduced vertical size. (54318730 tips)
• Excessive horizontal size. (+ extract of circuit diagram)
• Very slight flickering with a light picture. (+ extract of circuit diagram)
• E/W fault. (picture attached)
• Pincushion distortion.
• Impossible to adjust the horizontal synchronization. Picture has shifted 10cm to the left. TDA 8372A on pin 20 has already been replaced, sandcastle incorrect. Power supply is good. (with circuit diagram extract)
• Horizontal jitter. Vertical jitter. (+ extract of circuit diagram)
• Blue screen. Flyback lines. Audio OK .
• Enter service mode.
• Resistor R775 is defective.
• Faulty colour (green tinge, on upper picture edge, intermittently present). B/W picture OK. TXT and menu are OK too.
• Long picture at start up, black screen with rainbow spots.
• No E/W correction. (part of circuit diagram displayed)
• Does not fully go to TXT or only blue mix TXT. (extract of circuit diagram attached)
• PSU can not be loaded with 60W incandescent lamp.
• Loses sync at start-up for a few minutes.
• Intermittent loss of brightness, picture is black. Can be adjusted with RC. Or vice versa, picture is too light and can be adjusted.
• Switches on for a short time with RC, then switches off. "I" and "II" flicker on display. LED doesn't light. Starts up again with RC, if previously disconnected from mains.
• Focus problem. Blurred vertically, ok horizontally after replacing microprocessor and line transformer.
• Distorted vertical linearity. Barrel distortion. (picture attached)
• Motorboating noise at switch on. Pin 13 of the TDA8372A is unsoldered. TV no longer pulsates. Power supply voltages ok. (with circuit diagram extract)
• No vertical deflection. Horizontal line. Audio OK . (with circuit diagram extract)
• Insufficient picture heigth (10cm) and severe linear distortion.
• Switches to standby when mains switch is plugged in. Switches off when using RCU. (+ extract of circuit diagram)
• Remains in standby after changing power IC. (extract of circuit diagram attached)
• At the top edge of the picture an unusual stain effect appears and line tearing.
• Vertical IC (TDA3654) becomes hot, then fails after several hours. Picture OK. (with circuit diagram extract)
• Power supply hiccups.
• Noise in audio. (extract of circuit diagram attached)
• Black screen. Display flashes once at switch on.
• Lines in picture.
• White point when switching off with ON/OFF switch. No point in standby.
• Cycles on/off.
• Whenever a function is requested display lights up then switches off.
• Operation commands are not carried out.
• Slow start-up. when cold. (with circuit diagram extract)
• Does not start from Standby.
• Picture amplitude is too weak.
• Poor adjustment of horizontal picture centering. (picture attached)
• Erratic functions. (picture attached)
• PSU fails intermittently. (+ extract of circuit diagram) (54318730 SCHAUBLORENZ repair tip)
• Horizontal picture position is incorrect, 5cm to the left. No picture intermittently. (part of circuit diagram displayed)
• No picture. Hum in audio.
• PSU doesn't start-up or only after a while. Cracking sound.
• Distorted picture. on the right. (picture attached)
• Standby display lights up briefly, then no function.
• Picture shifted to the left. Alignment works normally. (+ extract of circuit diagram)
• The plug receptacle of the teletext decoder, which is contained in the additional component, does not fit mechanically into the socket receptacle of the appliance chassis.
• Line foldover by start-up. No sound. After warm-up, picture and sound are OK. Sync is still unstable.
• Reduced contrast, especially on one side of the screen.
• PSU pulsates. Sound crackles. After few secs. appliance works fine. (54318730 SCHAUBLORENZ repair tip)
• Few segments of the display too bright. Doesn't respond to commands.
• Slightly wavy picture in the middle of the screen. (+ extract of circuit diagram)
• Control unit does not function. Does not switch on. (+ extract of circuit diagram)
• No horizontal or vertical deflection.
• HT starts up, appliance switches off immediately. Power supply with lamp OK but documentation states voltage must be 60-100V when pin 4 of line transformer disconnected and lamp connected to D765 60-100V. Voltage in this case is 145V.
• High voltage transistor (S2000) defective. (picture attached)
• The picture is too large and wavers.
• No start-up from standby.
• Vertical dark bands running from left to centre of picture and separated by approx. 5cm.
• At start up the power supply starts up for 2 secs then the appliance apparently goes into safety mode. No fault on the secondary.
• Vertical collapse. (+ extract of circuit diagram)
• Standby display lights up for a short time. Line output stage attempts to function, but switches off immediately.
• No start up, no standby light, variable voltage on pin 16 of IC701. (part of circuit diagram displayed)
• T501 fails repeatedly.
• Picture has moved approx 10cm to the left. Vertical black bar with a few coloured streaks. Colour OK. (picture attached)
• Excessive vertical size. Vertical foldover at bottom.
• Blank screen with purple haze at left hand side. (+ extract of circuit diagram) (service info for SCHAUBLORENZ -54318730)
• Poor line and picture synchronisation when cold.
• HV appears briefly and then disappears. (extract of circuit diagram attached)
• Appliance whistles. Sound and picture present. Picture interference (lines approx one centimeter apart over the whole of the picture).
• DF-AF adjustment.
• HV builds up briefly and then shuts down (54318730 tip from SCHAUBLORENZ)
• Picture is brighter on the right. Poor synchronisation after program switch-over. Picture becomes brighter and darker in AV. (extract of circuit diagram attached)
• No PSU start-up.
• Intermittent block.
• Rattling noise or bubbling at start-up (when cold). (+ extract of circuit diagram)
• No functions.
• Black vertical bars on picture, mostly visible in AV with no video source. (extract of circuit diagram attached)
• Line transformer starts up with an amplitude of 400V blemished by many interference lines.
• Dark picture. Stripes after a while. OK after warm-up. (picture attached)
• No HT output from power supply. OK in standby. (part of circuit diagram displayed)
• No start up after changing IC601. Nothing lights up on the front.
• Picture appears slowly. (+ extract of circuit diagram)
• NICAM check.
• No colour (intermittently).
• When TV started up, transistor (S2000AF) instantly burn out. (extract of circuit diagram attached)
• Picture shifted to the left, too small and not adjustable. (+ extract of circuit diagram)
• Unclear picture with Hum content.
• Afterglow on deflection tube after switch off.
• Horizontal line.
• No vertical deflection. Only a horizontal bright line appears on CRT. Audio OK. (part of circuit diagram displayed)
• Unusual TXT.
• Dark screen at start up. Line transformer ok with flyback lines. Top 2 or 3 lines ok. In PB apparently functions around the IC TDA8372A. (part of circuit diagram displayed)
• PSU starts briefly, then no more HV. (with circuit diagram extract)
• Black bar on the right side of the screen. Similar to displacement. (extract of circuit diagram attached) (service info for SCHAUBLORENZ -54318730)
• Coloured lines (RGB test lines) in top of picture.
• Very pale picture which is shifted to the left. Voltage is correct. (part of circuit diagram displayed)
• Strong blue dominance at top of picture. Rest of picture (approx half) ok. (+ extract of circuit diagram)
• 88 shown on LED display.
• No tuning. only on certain channels. Dark screen. on the right.
• No TXT (intermittently).
• Picture only appears about 3 mins after switch on, when appliance is cold.
• When appliance receives in Nicam stereo, the TV goes into PAL. (54318730 tips)
• Picture collapse on half of the picture.
• Convex picture. Defective lower linearity. (part of circuit diagram displayed)
• Hums at switch on, dies out slowly. (SCHAUBLORENZ - 54318730 information)
• Noise in the speakers and no start up or display on the front panel when switching on. (+ extract of circuit diagram)
• No vertical deflection. intermittently.
• Motorboating noise at switch on then goes into standby. When frame IC is unsoldered TV starts up. (with circuit diagram extract)
• Horizontal jitter. when cold.
• No tuning. Higher channels in band I/III/V are not received.
• Left picture side is brighter, even via AV. (picture attached)
• Does not switch ON. No power light showing.
• White horizontal stripe about 5 cm from the bottom. Picture content bellow stripe is altered and noisy.
• Collapses at start up, then switches off.
• Approx. 1cm bright, vertical line on the right hand side of the picture approx. 10cm from the edge.
• Sound channel 1 and 2 voltage level adjustment.
• Goes into PAL reception when in NICAM reception on channel 64, programme N1.
• Builds up high voltage for a short time and then switches off. (part of circuit diagram displayed)
• Brightness varies. E/W fault. intermittently.
• Picture shifted to the left. (extract of circuit diagram attached)
• Vertical curtain-like stripes which may be distributed over the entire screen. (extract of circuit diagram attached) (54318730 tips)
• At switch ON, set screams. Pressing on the on/off switch gives same condition. Standby LED's off. (service info for SCHAUBLORENZ -54318730)
• Text selection is not possible, takes only Mix or full text but not both. Also various other functions are defective.
• Line tearing. at top. (extract of circuit diagram attached)
• Switches to protection mode. at start-up. (part of circuit diagram displayed)
• No horizontal synchronisation. at start-up. (with circuit diagram extract) (SCHAUBLORENZ - 54318730 information)
• Switches to standby (intermittently).
• Dark screen. on the right. (extract of circuit diagram attached)
• Dead. after start-up.
• Dead.
• Intermittent flyback lines. Grey scale varies intermittently. Possibly no picture.
• Picture shifted to the left. Sometimes picture fails completely, then still only picture blanking stripes visible. (+ extract of circuit diagram) (54318730 tip from SCHAUBLORENZ)
• Does not switch on. Fluttering noise from the loudspeakers. (extract of circuit diagram attached)
• Wavy vertical lines in the entire picture when cold. Picture jitters. (extract of circuit diagram attached)
• E/W trapezium does not function.
• No colour.
• PSU switches from standby to safety mode at switch on.
• Double picture.
• Picture is distorted and changes. Loss of colours. (extract of circuit diagram attached)
• No tuning.
• PSU cannot be started from Stand By. 145V voltage in an unloaded condition is at approx 105V, the connected lamp does not light up, the voltage then collapses to approx 20V. (with circuit diagram extract)
• No synchronisation (after start-up). (with circuit diagram extract)
• Only blue light at right in picture.
• Attempts to start with no result. (picture attached)
• Picture takes 15 secs. to appear. Sound ok and EHT present.
• Bright picture. on the right. Dark picture. on the left. (with circuit diagram extract)
• Secondary voltages appear for 1 to 2 secs. then nothing else. Standby LED switches off.
• Shuts down. after start-up. (+ extract of circuit diagram)
• Dark picture. intermittently.
• At switch on picture is condensed tnen enlarged. Pops loudly at approx 2 pulses per sec. Intermittent blast from speakers. (extract of circuit diagram attached)
• Vertical and horizontal synchronisation available only after 2 mins.
• Control unit processor is defective. (picture attached)
• Excessive brightness. in the centre. (picture attached)
• Too wide picture and East/West pincushion curving outward. (+ extract of circuit diagram)
• Unstable horizontal picture.
• Switches off when selecting a function via RC.
• Halts at switch on when cold. No start up. OK after a few attempts. (extract of circuit diagram attached)
• Picture shaking in a random direction. (+ extract of circuit diagram)
• No control and cannot be switched off when started up from standby.
• Dark picture on 2/3 of screen on the left but brighter on 1/3 of screen on the right. (part of circuit diagram displayed)
• No horizontal synchronisation. (with circuit diagram extract)
• LED lights up briefly then nothing more.
• Vertical hum bars on picture, sometimes very visible and sometimes hardly at all.
• Blank raster.
• No picture. Audio OK . (with circuit diagram extract)
• Poor synchronisation. No picture. after a while.
• Bright vertical stripes. No picture content. Sound OK. (extract of circuit diagram attached)
• Faint and too dark picture. Low brightness, contrast cannot be adjusted. Colour is adjustable.
• Blanking interval on left side of picture, colour flickers and screen dark after a while.
• At switch on appliance pulsated then reverts to standby again.
• Vertical line tearing. intermittently. (54318730 SCHAUBLORENZ repair tip)
• 10cm black bar on the right of the screen. Voltages ok, corrections work. (part of circuit diagram displayed)
• Dark picture.
• Motorboating noise at switch on. When you change IC701 the TV starts up again, it is possible to switch it off and to start it up by using standby. Otherwise, the fault starts again. (part of circuit diagram displayed)
• Tripping.
• Wavy picture. at top. (extract of circuit diagram attached) (54318730 SCHAUBLORENZ repair tip)
• No picture. No audio. (+ extract of circuit diagram)
• Switches off immediately after plugging in mains. (+ extract of circuit diagram) (54318730 SCHAUBLORENZ repair tip)
• Comes on for a short time. (part of circuit diagram displayed)
• Shadowing effect, left side of picture is brighter than the right one. (with circuit diagram extract)
• FBT blows after a few mins. (extract of circuit diagram attached)
• Horizontal synchronisation fault, picture shifted towards left side. (with circuit diagram extract)
• Picture goes off after 1 minute; very low contrast, ok through scart. (+ extract of circuit diagram)
• Picture is out of alignment horizontally. 10cm black bar on the right. (+ extract of circuit diagram)
• No start up after changing FBT and constant whistling noise. (extract of circuit diagram attached)
• Picture shifted to the right.
• Line synchronisation available only after 2 mins.
• Sound cracks. Switches off. Display stays. Can be restarted with RC. (part of circuit diagram displayed)
• Horizontal white line.
• Picture distorted, shifted upwards and a little bit too wide.
• Line tearing. (picture attached)
• PSU chirps, at the same time bubbling and hum in loudspeakers. No functions. (part of circuit diagram displayed)
• Dark screen, only diffuse glow.
• Flashing picture. (picture attached)
• NICAM is missing.
• Vertical jitter. when cold.
• The teletext contrast is considerably too high after installing the teletext decoder.
• Loud noise. at start-up.
• Resistor R515 becomes defective. (part of circuit diagram displayed)
• Programming menu can not be accessed. (with circuit diagram extract)
• When ON/OFF switch is pressed LED lights up and then switches off. If line BU is replaced by lamp, it lights up and collector goes down to 124V instead of 155V. (picture attached)
• Front LED briefly lights up at switch on then it switches off. LED remains lit when mains plug is connected and disconnected but it definitely switches off at start up.
• Whistling HT. No start up due to incorrect HT frequency. May blow S2000 immediately. (+ extract of circuit diagram)
• Line output stage fails at switch on. With load (lamp) appliance can be switched on with squeaking noise. (+ extract of circuit diagram) (SCHAUBLORENZ - 54318730 information)
• No HV.
• Poor vertical linearity at the bottom, also E/W error.
• Excessive HV. (part of circuit diagram displayed)
• Top third of screen has ragged vertical lines.
• Horizontal shaking. when cold.