54318721 / SCHAUBLORENZ [TV (Standard)]

• Picture amplitude is too weak.
• Left picture side is brighter, even via AV. (extract of circuit diagram attached)
• Does not switch to standby. (extract of circuit diagram attached)
• Instructions on how to put appliance into Service-Mode.
• Pincushion distortion.
• Picture with a 10cm vertical band on the right side. Negative picture behind this black band.
• Hums at switch on. (+ extract of circuit diagram)
• Bright raster. Flyback lines.
• Whenever a function is requested display lights up then switches off.
• Switches off completely after switch on. No standby function. (+ extract of circuit diagram)
• After the appliance is switched off a large spot of light appears for several seconds in the middle of the screen. (picture attached)
• Picture with vertical and horizontal lines (when cold).
• Focus problem. Blurred vertically, ok horizontally after replacing microprocessor and line transformer.
• Too wide picture and East/West pincushion curving outward. (with circuit diagram extract)
• Horizontal stripe. in the centre. (54318721 tip from SCHAUBLORENZ)
• Dead. after start-up.
• No colour (intermittently).
• Reduced vertical size.
• Operation commands are not carried out.
• Does not switch ON. No power light showing.
• Vertical IC fails. (+ extract of circuit diagram)
• 10cm black bar on the right of the screen. Voltages ok, corrections work. (with circuit diagram extract)
• Excessive brightness. in the centre. (+ extract of circuit diagram)
• Picture takes 15 secs. to appear. Sound ok and EHT present.
• Motorboating noise at switch on. Pin 13 of the TDA8372A is unsoldered. TV no longer pulsates. Power supply voltages ok. (+ extract of circuit diagram)
• Switches off when selecting a function via RC. (service info for SCHAUBLORENZ -54318721)
• No vertical deflection. Horizontal line. Audio OK . (extract of circuit diagram attached) (service info for SCHAUBLORENZ -54318721)
• No horizontal or vertical deflection. (54318721 tip from SCHAUBLORENZ)
• Picture is too wide. E/W distorted. (54318721 tip from SCHAUBLORENZ)
• Does not go into TXT mode. Mixed mode possible. (54318721 SCHAUBLORENZ repair tip)
• Dark picture. on the right. (+ extract of circuit diagram)
• 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)
• In a grey area - independent of colour saturation - you can see 2 vertical zones approx 15cm wide, greeny blue in colour with coloured edges.
• Horizontal white line.
• Black screen. Display flashes once at switch on.
• PSU can not be loaded with 60W incandescent lamp.
• Blue, vertical stripe in the right third of the picture. (service info for SCHAUBLORENZ -54318721)
• Black vertical bars on picture, mostly visible in AV with no video source. (+ extract of circuit diagram)
• Very pale picture which is shifted to the left. Voltage is correct. (with circuit diagram extract)
• Blue screen. Flyback lines. Audio OK .
• 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. (+ extract of circuit diagram)
• Appliance whistles. Sound and picture present. Picture interference (lines approx one centimeter apart over the whole of the picture).
• Picture appears slowly. (+ 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.
• The picture is too large and wavers.
• No functions. after a while.
• 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.
• Builds up high voltage for a short time and then switches off. (with circuit diagram extract)
• When TV started up, transistor (S2000AF) instantly burn out. (part of circuit diagram displayed) (54318721 SCHAUBLORENZ repair tip)
• Distorted vertical linearity. Barrel distortion. (part of circuit diagram displayed)
• Approx 20cm wide dark area in centre of picture and line tearing.
• Stuck in standby; RC ineffective. Stanby LED flickers. (with circuit diagram extract)
• 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)
• Long picture at start up, black screen with rainbow spots. (service info for SCHAUBLORENZ -54318721)
• No start up after changing IC601. Nothing lights up on the front.
• Poor shading of picture, dark on one side and light on the other. (+ extract of circuit diagram)
• Switches to protection mode. at start-up. (picture attached) (54318721 tips)
• Line foldover by start-up. No sound. After warm-up, picture and sound are OK. Sync is still unstable.
• Vertical, bright stripe faintly visible in the right third of the picture.
• Does not switch on. Fluttering noise from the loudspeakers. (part of circuit diagram displayed)
• FBT blows after a few mins. (part of circuit diagram displayed)
• E/W trapezium does not function.
• Approx. 1cm bright, vertical line on the right hand side of the picture approx. 10cm from the edge.
• No tuning. Higher channels in band I/III/V are not received.
• Low brightness. Picture too big.
• Horizontal jitter. Vertical jitter. (with circuit diagram extract)
• Afterglow on deflection tube after switch off.
• Picture shifted horizontally. (picture attached)
• Picture rolls. when cold. (with circuit diagram extract)
• Display flashing and rattles at switch on. (part of circuit diagram displayed) (SCHAUBLORENZ - 54318721 information)
• PSU chirps, at the same time bubbling and hum in loudspeakers. No functions. (+ extract of circuit diagram)
• 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.
• E/W fault. (with circuit diagram extract)
• Cycles on/off.
• 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.
• Wavy picture. at top. (picture attached)
• Horizontal synchronisation fault even after replacing TDA8372. Weak adjustment with pot R634. Line synchronisation OK. Comparator OK. Horizontal linearity is OK. (part of circuit diagram displayed)
• Vertical hum bars on picture, sometimes very visible and sometimes hardly at all.
• 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)
• PSU starts briefly, then no more HV. (extract of circuit diagram attached)
• Control unit does not function. Does not switch on. (part of circuit diagram displayed)
• 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.
• No synchronisation (after start-up). (with circuit diagram extract)
• Programming menu can not be accessed. (extract of circuit diagram attached)
• White point when switching off with ON/OFF switch. No point in standby.
• At the top edge of the picture an unusual stain effect appears and line tearing.
• No E/W correction. (picture attached)
• Coloured lines (RGB test lines) in top of picture.
• 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.
• Picture only appears about 3 mins after switch on, when appliance is cold.
• Channel TF1 (channel 22) does not hold in SECAM: remains in PAL. The other channels are normal.
• Bright vertical stripes. No picture content. Sound OK. (picture attached)
• 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.
• At switch on, lights light up for an instant, voltage which ought to reach 145V increases to 60V but then goes back to 0V. (+ extract of circuit diagram)
• Switches off immediately after plugging in mains. (part of circuit diagram displayed)
• Noise in audio. (+ extract of circuit diagram)
• No picture. Hum in audio.
• No start-up. (extract of circuit diagram attached)
• Goes into PAL reception when in NICAM reception on channel 64, programme N1.
• Few segments of the display too bright. Doesn't respond to commands.
• Can be switched to standby only if power plug is pulled out.
• Blank raster.
• Vertical or horizontal picture shaking both when hot and cold. (picture attached)
• Buzzing at start-up.
• High voltage transistor (S2000) defective. (extract of circuit diagram attached)
• Grey picture at switch on and sound which disappears after 15 mins. Grey screen with frizzy line on the sides when pressing G2.
• HV appears briefly and then disappears. (+ extract of circuit diagram)
• Remains in standby after changing power IC. (+ extract of circuit diagram)
• No horizontal synchronisation. (+ extract of circuit diagram)
• Halts at switch on when cold. No start up. OK after a few attempts. (with circuit diagram extract)
• Loses sync at start-up for a few minutes.
• Does not start from Standby.
• PSU is defective. 300V is present.
• PSU doesn't start-up or only after a while. Cracking sound.
• PSU pulsates. Sound crackles. After few secs. appliance works fine.
• At switch on picture is condensed tnen enlarged. Pops loudly at approx 2 pulses per sec. Intermittent blast from speakers. (picture attached)
• Intermittent block.
• Rattling noise or bubbling at start-up (when cold). (picture attached)
• Blank screen with purple haze at left hand side. (picture attached)
• Poor adjustment of horizontal picture centering. (picture attached)
• No picture content. Picture is greyish. (with circuit diagram extract)
• Random operation commands.
• No TXT.
• 88 shown on LED display.
• HV builds up briefly and then shuts down
• Whistling HT. No start up due to incorrect HT frequency. May blow S2000 immediately. (extract of circuit diagram attached)
• Stuck in standby.
• Reduced raster size. (extract of circuit diagram attached)
• White horizontal stripe about 5 cm from the bottom. Picture content bellow stripe is altered and noisy.
• Centre of snowy picture is darker than edges. (+ extract of circuit diagram)
• Switches to standby (intermittently).
• Vertical lines. No colour. after a while.
• Picture shifted to the left. (picture attached)
• Vertical and horizontal synchronisation available only after 2 mins.
• Power supply hiccups.
• Poor PSU start-up or BU defective. (with circuit diagram extract)
• Stops after 5 seconds. No standby LED. (with circuit diagram extract)
• Illegible display. (part of circuit diagram displayed)
• Intermittent loss of brightness, picture is black. Can be adjusted with RC. Or vice versa, picture is too light and can be adjusted.
• Slightly wavy picture in the middle of the screen. (extract of circuit diagram attached)
• Picture has moved approx 10cm to the left. Vertical black bar with a few coloured streaks. Colour OK. (part of circuit diagram displayed)
• 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. (extract of circuit diagram attached) (54318721 tips)
• 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. (picture attached)
• Erratic functions. (+ extract of circuit diagram)
• Poor audio.
• Motorboating noise at switch on then goes into standby. When frame IC is unsoldered TV starts up. (extract of circuit diagram attached) (54318721 tip from SCHAUBLORENZ)
• Programmes change by themselves. RC is OK.
• 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. (picture attached)
• After approx 20 mins colour TV switches off.
• No start up after changing FBT and constant whistling noise. (extract of circuit diagram attached)
• Dark screen. on the right. (with circuit diagram extract)
• Does not fully go to TXT or only blue mix TXT. (part of circuit diagram displayed)
• Transistor T701 fails when appliance is switched off and on.
• Will not select text, or will only select mix or full text but not both, various other functions faulty.
• NICAM check.
• Excessive brightness. Flyback lines. (extract of circuit diagram attached)
• Top third of screen has ragged vertical lines.
• PSU doesn't start up when cold. (with circuit diagram extract) (54318721 tips)
• E/W-fault.
• Only snow in the picture, after changing the tuner the fault is still there.
• Vertical collapse. (+ 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.
• Line transformer starts up with an amplitude of 400V blemished by many interference lines.
• Impossible to adjust synchronisation. Picture shifted towards left. Right side of picture reduced by 8cm. (with circuit diagram extract)
• Line transistor S2000AF defective at switch on from cold. (extract of circuit diagram attached)
• Intermittent flyback lines. Grey scale varies intermittently. Possibly no picture.
• No picture (intermittently).
• Text selection is not possible, takes only Mix or full text but not both. Also various other functions are defective. (SCHAUBLORENZ - 54318721 information)
• Only standby LED lit. LED switches off at switch on then no function. (54318721 SCHAUBLORENZ repair tip)
• Occasionally blue screen. Picture ok when G2 adjusted then disappears again. When pressed too much picture remains incorrect then disappears.
• Picture goes off after 1 minute; very low contrast, ok through scart. (with circuit diagram extract) (SCHAUBLORENZ - 54318721 information)
• Horizontal collapse. after a while. (+ extract of circuit diagram)
• Power supply defective after a few days. (extract of circuit diagram attached)
• PSU fails intermittently. (picture attached)
• Tripping.
• Strong blue dominance at top of picture. Rest of picture (approx half) ok. (extract of circuit diagram attached) (54318721 tip from SCHAUBLORENZ)
• No picture. Audio OK . (extract of circuit diagram attached)
• Intermittently dead. (extract of circuit diagram attached)
• No HT output from power supply. OK in standby. (part of circuit diagram displayed)
• Picture and sound missing. Via scart socket with video recorder OK (extract of circuit diagram attached)
• Noise in picture. Poor horizontal synchronisation.
• Vertical jitter. when cold.
• 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. (picture attached)
• If switched to standby, appliance pulsates and can be heard in loudspeakers. (+ extract of circuit diagram)
• Poor line and picture synchronisation when cold.
• Collapses at start up, then switches off. (54318721 tip from SCHAUBLORENZ)
• Shuts down. (part of circuit diagram displayed)
• DF-AF adjustment.
• No TXT (intermittently).
• Picture is brighter on the right. Poor synchronisation after program switch-over. Picture becomes brighter and darker in AV. (with circuit diagram extract)
• PSU switches from standby to safety mode at switch on.
• Horizontal synchronisation fault, picture shifted towards left side. (+ extract of circuit diagram)
• No colour.
• Does not go into text mode, mix mode is not possible.
• No HV.
• Picture is distorted and changes. Loss of colours. (extract of circuit diagram attached)
• Line frequency changes downward (squeaking, whistling). (54318721 SCHAUBLORENZ repair tip)
• Sound cracks. Switches off. Display stays. Can be restarted with RC. (with circuit diagram extract) (54318721 tips)
• Noise in the speakers and no start up or display on the front panel when switching on. (with circuit diagram extract)
• Dark picture.
• Flashing picture. (with circuit diagram extract)
• Unusual TXT.
• At start up the power supply starts up for 2 secs then the appliance apparently goes into safety mode. No fault on the secondary. (54318721 tip from SCHAUBLORENZ)
• No audio (when cold).
• Unclear picture with Hum content.
• One side of picture is black. (service info for SCHAUBLORENZ -54318721)
• Unstable horizontal picture.
• Convex picture. Defective lower linearity. (with circuit diagram extract)
• Line tearing. at top. (picture attached)
• Dark screen, only diffuse glow.
• Unstable picture. (with circuit diagram extract)
• No tuning. only on certain channels. Dark screen. on the right. (SCHAUBLORENZ - 54318721 information)
• Automatic B/G-L detection does not work correctly with the Nicam sound carrier (TF1, FRANCE 2).
• No raster sync in HF. Ok in scart. (picture attached) (54318721 SCHAUBLORENZ repair tip)
• No start-up (when cold).
• Line output stage fails at switch on. With load (lamp) appliance can be switched on with squeaking noise. (extract of circuit diagram attached)
• No synchronisation during the first few mins. (picture attached) (54318721 tip from SCHAUBLORENZ)
• Shadowing effect, left side of picture is brighter than the right one. (part of circuit diagram displayed)
• Only blue light at right in picture.
• No tuning.
• Horizontal line.
• Picture shifted to the left. Alignment works normally. (+ extract of circuit diagram)
• Picture shaking in a random direction. (extract of circuit diagram attached)
• NICAM is missing.
• Loud noise. at start-up.
• No functions. Red LED does not flash.
• Blocked control processor.
• Switches to standby when mains switch is plugged in. Switches off when using RCU. (+ extract of circuit diagram)
• Slow start-up. when cold. (part of circuit diagram displayed)
• Dark picture. intermittently.
• Picture distorted, shifted upwards and a little bit too wide.
• Bright picture. on the right. Dark picture. on the left. (+ extract of circuit diagram)
• Secondary voltages appear for 1 to 2 secs. then nothing else. Standby LED switches off.
• Line BU voltage = 140V. Value of capacitor C701 (in PSU) illegible. Still no display if line BU disconnected. (picture attached)
• Blanking interval on left side of picture, colour flickers and screen dark after a while.
• AV correction.
• Control unit processor is defective. (picture attached)
• Poor PSU start up. Severe crackle in the loudspeaker.
• T501 fails repeatedly.
• 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.
• No functions. (service info for SCHAUBLORENZ -54318721)
• Line synchronisation available only after 2 mins.
• Intermittent no image or yellow colouring. Knock sensitive. (with circuit diagram extract)
• Comes on for a short time. (extract of circuit diagram attached)
• Picture shifted to the left. Sometimes picture fails completely, then still only picture blanking stripes visible. (with circuit diagram extract)
• Lines in picture.
• At Power On standby LED switches off immediately after switching on.
• Reduced contrast, especially on one side of the screen.
• At switch on appliance pulsated then reverts to standby again.
• Wavy vertical lines in the entire picture when cold. Picture jitters. (part of circuit diagram displayed)
• Shuts down. after start-up. (extract of circuit diagram attached)
• Output transistor (S2000) fails when started from cold.
• Picture collapse on half of the picture.
• No PSU start-up.
• Hum bars, especially on yellow or orange background.
• The teletext contrast is considerably too high after installing the teletext decoder.
• High voltage build up for short time then PSU switches off. (with circuit diagram extract)
• Excessive vertical size. Vertical foldover at bottom.
• Vertical line tearing. intermittently.
• Dead.
• EHT is heard starting up then everything stops 4 secs later.
• Picture shifted to the right.
• Insufficient picture heigth (10cm) and severe linear distortion.
• Vertical dark bands running from left to centre of picture and separated by approx. 5cm. (SCHAUBLORENZ - 54318721 information)
• Picture tearing.
• Excessive HV. (+ extract of circuit diagram)
• Intermittently line tearing in the middle (approx. 20cm wide). (+ extract of circuit diagram)
• Brightness varies. E/W fault. intermittently.
• No control and cannot be switched off when started up from standby.
• Standby display lights up for a short time. Line output stage attempts to function, but switches off immediately.
• Picture is out of alignment horizontally. 10cm black bar on the right. (with circuit diagram extract)
• Distorted picture. on the right. (part of circuit diagram displayed)
• Line transformer starts up but no display, nothing on the screen and no sound. (picture attached)
• No vertical deflection. Only a horizontal bright line appears on CRT. Audio OK. (extract of circuit diagram attached)
• High voltage runs high. Flashover all over. (SCHAUBLORENZ - 54318721 information)
• HV arcing. (+ extract of circuit diagram)
• Sound channel 1 and 2 voltage level adjustment.
• Very slight flickering with a light picture. (extract of circuit diagram attached)
• Standby display lights up briefly, then no function.
• Vertical curtain-like stripes which may be distributed over the entire screen. (+ extract of circuit diagram)
• Black picture. Sound OK. Picture is OK after restart. (+ extract of circuit diagram) (SCHAUBLORENZ - 54318721 information)
• From a cold start line output stage transistor fails.
• Picture shifted to the left, too small and not adjustable. (extract of circuit diagram attached)
• Horizontal picture position is incorrect, 5cm to the left. No picture intermittently. (part of circuit diagram displayed)
• Dark picture. Stripes after a while. OK after warm-up. (part of circuit diagram displayed)
• 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. (+ extract of circuit diagram)
• No start-up from standby.
• No horizontal synchronisation. at start-up. (extract of circuit diagram attached)
• Dark picture on 2/3 of screen on the left but brighter on 1/3 of screen on the right. (picture attached)
• At switch ON, set screams. Pressing on the on/off switch gives same condition. Standby LED's off.
• Eliminate safety mode of PSU.
• White, horizontal lines at the top of the picture. Lines decrease after a while but never disappear completely.
• Horizontal shaking. when cold.
• Faint and too dark picture. Low brightness, contrast cannot be adjusted. Colour is adjustable.
• Power supply seems to remain in safety mode. (part of circuit diagram displayed)
• Resistor R775 is defective.
• White screen. Flyback lines.
• Picture too big. (part of circuit diagram displayed) (54318721 SCHAUBLORENZ repair tip)
• Vertical IC (TDA3654) becomes hot, then fails after several hours. Picture OK. (picture attached)
• When appliance receives in Nicam stereo, the TV goes into PAL.
• Starts with noise (approx. 2-3 seconds), then it operates normally. (+ extract of circuit diagram)
• Poor vertical linearity at the bottom, also E/W error.
• Brightness differs between left and right hand side of the screen.
• Attempts to start with no result. (picture attached)
• LED lights up briefly then nothing more.
• Black bars on the bottom of picture. If V-amplitude is altered, picture disappears on the bottom. (with circuit diagram extract)
• Hums at switch on, dies out slowly.
• Does not start up each time. When it functions, whistling and modulation of picture. This gets less in time.
• Black bar on the right side of the screen. Similar to displacement. (part of circuit diagram displayed)
• Resistor R515 becomes defective. (extract of circuit diagram attached)
• No picture. on lower half screen. (part of circuit diagram displayed)
• Line tearing. (+ extract of circuit diagram)
• Time constant switching over only occurs on memory sites 37 to 39 and AV. (54318721 tip from SCHAUBLORENZ)
• No picture. No audio. (picture attached)
• No vertical deflection. intermittently.
• Defective linearity.
• Faulty colour (green tinge, on upper picture edge, intermittently present). B/W picture OK. TXT and menu are OK too.
• Enter service mode.
• Line BU is abnormally hot.
• No start up, no standby light, variable voltage on pin 16 of IC701. (part of circuit diagram displayed)
• Double picture.
• Cuts out after switch on, soft hum from the speakers in standby mode.
• Excessive horizontal size. (part of circuit diagram displayed)
• Pulsating picture. (extract of circuit diagram attached)
• 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.
• Horizontal jitter. when cold.
• Poor synchronisation. No picture. after a while.