54337500 / SCHAUBLORENZ [TV (Standard)]

• No start up after changing IC601. Nothing lights up on the front.
• AV correction. (54337500 tips)
• PSU switches from standby to safety mode at switch on.
• The picture is too large and wavers. (54337500 tip from SCHAUBLORENZ)
• Transistor T701 fails when appliance is switched off and on.
• One side of picture is black.
• Horizontal white line.
• Vertical lines. No colour. after a while.
• Shuts down. after start-up. (extract of circuit diagram attached) (54337500 tips)
• Loses sync at start-up for a few minutes.
• Does not switch on. Fluttering noise from the loudspeakers. (+ extract of circuit diagram)
• Dark picture.
• Poor line and picture synchronisation when cold.
• Resistor R775 is defective.
• No HT output from power supply. OK in standby. (extract of circuit diagram attached)
• Vertical dark bands running from left to centre of picture and separated by approx. 5cm. (54337500 tip from SCHAUBLORENZ)
• Bright raster. Flyback lines.
• Poor synchronisation. No picture. after a while.
• Grey picture at switch on and sound which disappears after 15 mins. Grey screen with frizzy line on the sides when pressing G2.
• Line transformer starts up but no display, nothing on the screen and no sound. (with circuit diagram extract)
• Picture has moved approx 10cm to the left. Vertical black bar with a few coloured streaks. Colour OK. (with circuit diagram extract)
• Control unit does not function. Does not switch on. (picture attached)
• No colour.
• Picture shifted to the left. (with circuit diagram extract)
• Blocked control processor.
• Switches to standby (intermittently).
• White point when switching off with ON/OFF switch. No point in standby.
• Vertical collapse. (part of circuit diagram displayed)
• Stuck in standby; RC ineffective. Stanby LED flickers. (part of circuit diagram displayed)
• Operation commands are not carried out.
• Horizontal jitter. Vertical jitter. (+ extract of circuit diagram)
• Line BU is abnormally hot.
• EHT is heard starting up then everything stops 4 secs later.
• DF-AF adjustment.
• Comes on for a short time. (part of circuit diagram displayed)
• When appliance receives in Nicam stereo, the TV goes into PAL.
• If switched to standby, appliance pulsates and can be heard in loudspeakers. (+ extract of circuit diagram)
• 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 amplitude is too weak.
• E/W fault. (+ extract of circuit diagram)
• Blank raster.
• Convex picture. Defective lower linearity. (part of circuit diagram displayed) (SCHAUBLORENZ - 54337500 information)
• Line BU voltage = 140V. Value of capacitor C701 (in PSU) illegible. Still no display if line BU disconnected. (picture attached) (54337500 tip from SCHAUBLORENZ)
• White horizontal stripe about 5 cm from the bottom. Picture content bellow stripe is altered and noisy.
• Ok with signal. Without signal: unstable line frequency, line stage transformer makes a loud whistling noise and T511 (scanning transistor) shorts. (picture attached)
• Distorted picture. on the right. (with circuit diagram extract)
• Does not fully go to TXT or only blue mix TXT. (picture attached)
• Does not switch ON. No power light showing.
• Brightness varies. E/W fault. intermittently.
• Goes into PAL reception when in NICAM reception on channel 64, programme N1.
• Picture with vertical and horizontal lines (when cold).
• Bright vertical stripes. No picture content. Sound OK. (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 picture. Audio OK . (extract of circuit diagram attached)
• Hums at switch on. (part of circuit diagram displayed)
• No tuning. only on certain channels. Dark screen. on the right.
• Horizontal picture position is incorrect, 5cm to the left. No picture intermittently. (picture attached)
• No vertical deflection. Horizontal line. Audio OK . (+ extract of circuit diagram)
• Switches off immediately after plugging in mains. (extract of circuit diagram attached)
• Intermittent flyback lines. Grey scale varies intermittently. Possibly no picture.
• White, horizontal lines at the top of the picture. Lines decrease after a while but never disappear completely.
• Picture shifted horizontally. (extract of circuit diagram attached)
• Starts with noise (approx. 2-3 seconds), then it operates normally. (with circuit diagram extract)
• Time constant switching over only occurs on memory sites 37 to 39 and AV.
• Wavy picture. at top. (with circuit diagram extract)
• 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.
• 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 text mode, mix mode is not possible.
• PSU chirps, at the same time bubbling and hum in loudspeakers. No functions. (with circuit diagram extract)
• At start up the power supply starts up for 2 secs then the appliance apparently goes into safety mode. No fault on the secondary.
• Blue screen. Flyback lines. Audio OK .
• Noise in the speakers and no start up or display on the front panel when switching on. (picture attached)
• No TXT (intermittently). (service info for SCHAUBLORENZ -54337500)
• Brightness differs between left and right hand side of the screen.
• Unclear picture with Hum content.
• 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.
• Automatic B/G-L detection does not work correctly with the Nicam sound carrier (TF1, FRANCE 2).
• Dark screen. on the right. (picture attached)
• Blanking interval on left side of picture, colour flickers and screen dark after a while.
• Rattling noise or bubbling at start-up (when cold). (with circuit diagram extract)
• Picture collapse on half of the picture.
• Poor PSU start-up or BU defective. (picture attached)
• Excessive brightness. in the centre. (extract of circuit diagram attached)
• No vertical deflection. intermittently.
• Noise in picture. Poor horizontal synchronisation.
• HV appears briefly and then disappears. (extract of circuit diagram attached)
• Line synchronisation available only after 2 mins.
• HV arcing. (part of circuit diagram displayed)
• No synchronisation (after start-up). (part of circuit diagram displayed)
• 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 picture. on lower half screen. (picture attached) (54337500 tip from SCHAUBLORENZ)
• Picture shaking in a random direction. (+ extract of circuit diagram)
• Dark screen, only diffuse glow.
• Top third of screen has ragged vertical lines.
• High voltage transistor (S2000) defective. (extract of circuit diagram 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.
• Display flashing and rattles at switch on. (picture attached)
• Collapses at start up, then switches off.
• 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. (+ extract of circuit diagram)
• Distorted vertical linearity. Barrel distortion. (picture attached)
• Power supply seems to remain in safety mode. (+ extract of circuit diagram) (SCHAUBLORENZ - 54337500 information)
• Does not go into TXT mode. Mixed mode possible.
• PSU fails intermittently. (+ extract of circuit diagram)
• Motorboating noise at switch on then goes into standby. When frame IC is unsoldered TV starts up. (extract of circuit diagram attached)
• No HV.
• Motorboating noise at switch on. Pin 13 of the TDA8372A is unsoldered. TV no longer pulsates. Power supply voltages ok. (+ extract of circuit diagram)
• Picture rolls. when cold. (+ extract of circuit diagram)
• No start up after changing FBT and constant whistling noise. (part of circuit diagram displayed)
• Excessive vertical size. Vertical foldover at bottom.
• No functions.
• Picture tearing.
• PSU can not be loaded with 60W incandescent lamp.
• Will not select text, or will only select mix or full text but not both, various other functions faulty. (54337500 SCHAUBLORENZ repair tip)
• Shuts down. (picture attached)
• Afterglow on deflection tube after switch off.
• Picture is out of alignment horizontally. 10cm black bar on the right. (picture attached)
• Blue, vertical stripe in the right third of the picture.
• Picture and sound missing. Via scart socket with video recorder OK (part of circuit diagram displayed)
• Pulsating picture. (+ extract of circuit diagram) (54337500 SCHAUBLORENZ repair tip)
• Power supply defective after a few days. (extract of circuit diagram attached)
• No E/W correction. (picture attached)
• Dark picture. intermittently.
• 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)
• Cycles on/off.
• Vertical or horizontal picture shaking both when hot and cold. (picture attached)
• Centre of snowy picture is darker than edges. (part of circuit diagram displayed)
• Horizontal synchronisation fault, picture shifted towards left side. (+ extract of circuit diagram)
• Approx. 1cm bright, vertical line on the right hand side of the picture approx. 10cm from the edge.
• Control unit processor is defective. (part of circuit diagram displayed)
• Only blue light at right in picture.
• After approx 20 mins colour TV switches off. (54337500 tips)
• High voltage runs high. Flashover all over.
• Picture takes 15 secs. to appear. Sound ok and EHT present.
• Reduced vertical size.
• Hums at switch on, dies out slowly.
• Coloured lines (RGB test lines) in top of picture.
• Can be switched to standby only if power plug is pulled out.
• Reduced contrast, especially on one side of the screen.
• Lines in picture.
• Whistling HT. No start up due to incorrect HT frequency. May blow S2000 immediately. (with circuit diagram extract)
• Wavy vertical lines in the entire picture when cold. Picture jitters. (picture attached)
• Vertical IC fails. (part of circuit diagram displayed)
• Does not start from Standby.
• Insufficient picture heigth (10cm) and severe linear distortion.
• Line foldover by start-up. No sound. After warm-up, picture and sound are OK. Sync is still unstable.
• Only standby LED lit. LED switches off at switch on then no function.
• 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.
• At Power On standby LED switches off immediately after switching on.
• HV builds up briefly and then shuts down
• Picture too big. (with circuit diagram extract)
• Stops after 5 seconds. No standby LED. (extract of circuit diagram attached)
• Programming menu can not be accessed. (picture attached)
• No start up, no standby light, variable voltage on pin 16 of IC701. (with circuit diagram extract)
• No raster sync in HF. Ok in scart. (part of circuit diagram displayed)
• Intermittently dead. (extract of circuit diagram attached)
• Picture with a 10cm vertical band on the right side. Negative picture behind this black band.
• Occasionally blue screen. Picture ok when G2 adjusted then disappears again. When pressed too much picture remains incorrect then disappears.
• 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. (SCHAUBLORENZ - 54337500 information)
• Remains in standby after changing power IC. (with circuit diagram extract)
• Left picture side is brighter, even via AV. (part of circuit diagram displayed)
• PSU doesn't start-up or only after a while. Cracking sound.
• Slow start-up. when cold. (picture attached)
• 10cm black bar on the right of the screen. Voltages ok, corrections work. (part of circuit diagram displayed)
• At the top edge of the picture an unusual stain effect appears and line tearing. (54337500 tip from SCHAUBLORENZ)
• Shadowing effect, left side of picture is brighter than the right one. (picture attached)
• No start-up from standby.
• Poor adjustment of horizontal picture centering. (picture attached)
• High voltage build up for short time then PSU switches off. (part of circuit diagram displayed)
• Picture appears slowly. (part of circuit diagram displayed)
• Slightly wavy picture in the middle of the screen. (extract of circuit diagram attached)
• Switches off when selecting a function via RC.
• Sound cracks. Switches off. Display stays. Can be restarted with RC. (+ extract of circuit diagram)
• 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)
• Output transistor (S2000) fails when started from cold.
• Black screen. Display flashes once at switch on.
• Dead. after start-up.
• Picture shifted to the left, too small and not adjustable. (extract of circuit diagram attached)
• Very pale picture which is shifted to the left. Voltage is correct. (part of circuit diagram displayed) (54337500 tips)
• Builds up high voltage for a short time and then switches off. (+ extract of circuit diagram)
• NICAM check.
• Unstable horizontal picture.
• Tripping. (54337500 SCHAUBLORENZ repair tip)
• Horizontal collapse. after a while. (+ extract of circuit diagram)
• Reduced raster size. (part of circuit diagram displayed)
• No picture. No audio. (part of circuit diagram displayed)
• No picture. Hum in audio.
• Poor vertical linearity at the bottom, also E/W error.
• Excessive horizontal size. (with circuit diagram extract)
• Does not switch to standby. (extract of circuit diagram attached)
• Poor PSU start up. Severe crackle in the loudspeaker.
• Double picture.
• No TXT.
• No tuning.
• No synchronisation during the first few mins. (extract of circuit diagram attached)
• 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.
• Intermittently line tearing in the middle (approx. 20cm wide). (picture attached)
• Standby display lights up for a short time. Line output stage attempts to function, but switches off immediately.
• Does not start up each time. When it functions, whistling and modulation of picture. This gets less in time.
• 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. (+ extract of circuit diagram)
• Noise in audio. (with circuit diagram extract)
• Bright picture. on the right. Dark picture. on the left. (extract of circuit diagram attached)
• Strong blue dominance at top of picture. Rest of picture (approx half) ok. (extract of circuit diagram attached)
• Picture shifted to the right.
• 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.
• Picture shifted to the left. Alignment works normally. (extract of circuit diagram attached)
• No colour (intermittently).
• At switch on picture is condensed tnen enlarged. Pops loudly at approx 2 pulses per sec. Intermittent blast from speakers. (with circuit diagram extract)
• No functions. Red LED does not flash.
• Vertical hum bars on picture, sometimes very visible and sometimes hardly at all.
• Horizontal stripe. in the centre.
• White screen. Flyback lines.
• 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.
• Random operation commands.
• Vertical IC (TDA3654) becomes hot, then fails after several hours. Picture OK. (part of circuit diagram displayed)
• Buzzing at start-up.
• Attempts to start with no result. (with circuit diagram extract)
• E/W trapezium does not function.
• 88 shown on LED display.
• No tuning. Higher channels in band I/III/V are not received.
• Line tearing. at top. (+ extract of circuit diagram)
• 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 attached)
• Flashing picture. (with circuit diagram extract)
• Resistor R515 becomes defective. (extract of circuit diagram attached)
• Power supply hiccups.
• PSU starts briefly, then no more HV. (with circuit diagram extract)
• No start-up (when cold).
• No horizontal synchronisation. at start-up. (with circuit diagram extract)
• Approx 20cm wide dark area in centre of picture and line tearing.
• Halts at switch on when cold. No start up. OK after a few attempts. (with circuit diagram extract)
• Vertical line tearing. intermittently.
• Pincushion distortion.
• Intermittent loss of brightness, picture is black. Can be adjusted with RC. Or vice versa, picture is too light and can be adjusted.
• At switch on, lights light up for an instant, voltage which ought to reach 145V increases to 60V but then goes back to 0V. (picture attached)
• LED lights up briefly then nothing more.
• Picture only appears about 3 mins after switch on, when appliance is cold.
• Line transistor S2000AF defective at switch on from cold. (extract of circuit diagram attached)
• Vertical curtain-like stripes which may be distributed over the entire screen. (with circuit diagram extract)
• Black bars on the bottom of picture. If V-amplitude is altered, picture disappears on the bottom. (extract of circuit diagram attached)
• Faint and too dark picture. Low brightness, contrast cannot be adjusted. Colour is adjustable.
• No picture (intermittently). (54337500 tip from SCHAUBLORENZ)
• Black vertical bars on picture, mostly visible in AV with no video source. (part of circuit diagram displayed)
• Vertical, bright stripe faintly visible in the right third of the picture.
• Enter service mode.
• Very slight flickering with a light picture. (+ extract of circuit diagram)
• Sound channel 1 and 2 voltage level adjustment. (service info for SCHAUBLORENZ -54337500)
• Illegible display. (picture attached)
• Black picture. Sound OK. Picture is OK after restart. (with circuit diagram extract)
• Intermittent block.
• Switches to standby when mains switch is plugged in. Switches off when using RCU. (picture attached)
• Text selection is not possible, takes only Mix or full text but not both. Also various other functions are defective.
• Standby display lights up briefly, then no function. (54337500 tips)
• Picture distorted, shifted upwards and a little bit too wide.
• Loud noise. at start-up. (54337500 tip from SCHAUBLORENZ)
• T501 fails repeatedly.
• Hum bars, especially on yellow or orange background. (54337500 SCHAUBLORENZ repair tip)
• Long picture at start up, black screen with rainbow spots.
• Impossible to adjust synchronisation. Picture shifted towards left. Right side of picture reduced by 8cm. (+ extract of circuit diagram)
• Dark picture. on the right. (+ extract of circuit diagram)
• No vertical deflection. Only a horizontal bright line appears on CRT. Audio OK. (extract of circuit diagram attached)
• Secondary voltages appear for 1 to 2 secs. then nothing else. Standby LED switches off.
• Dark picture. Stripes after a while. OK after warm-up. (part of circuit diagram displayed)
• Line output stage fails at switch on. With load (lamp) appliance can be switched on with squeaking noise. (+ extract of circuit diagram)
• PSU pulsates. Sound crackles. After few secs. appliance works fine.
• Channel TF1 (channel 22) does not hold in SECAM: remains in PAL. The other channels are normal. (54337500 SCHAUBLORENZ repair tip)
• Blank screen with purple haze at left hand side. (extract of circuit diagram attached)
• NICAM is missing.
• E/W-fault.
• Picture is distorted and changes. Loss of colours. (with circuit diagram extract)
• Focus problem. Blurred vertically, ok horizontally after replacing microprocessor and line transformer.
• Eliminate safety mode of PSU.
• 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)
• Horizontal shaking. when cold.
• Picture is too wide. E/W distorted.
• Picture shifted to the left. Sometimes picture fails completely, then still only picture blanking stripes visible. (with circuit diagram extract)
• No horizontal synchronisation. (with circuit diagram extract)
• Vertical and horizontal synchronisation available only after 2 mins.
• Excessive brightness. Flyback lines. (picture attached)
• Only snow in the picture, after changing the tuner the fault is still there.
• At switch on appliance pulsated then reverts to standby again.
• No start-up. (part of circuit diagram displayed)
• Instructions on how to put appliance into Service-Mode.
• Few segments of the display too bright. Doesn't respond to commands.
• Excessive HV. (+ extract of circuit diagram)
• Cuts out after switch on, soft hum from the speakers in standby mode.
• Defective linearity.
• Line tearing. (extract of circuit diagram attached)
• No horizontal or vertical deflection.
• The teletext contrast is considerably too high after installing the teletext decoder.
• 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) (54337500 SCHAUBLORENZ repair tip)
• Vertical jitter. when cold.
• When TV started up, transistor (S2000AF) instantly burn out. (with circuit diagram extract)
• Too wide picture and East/West pincushion curving outward. (with circuit diagram extract)
• From a cold start line output stage transistor fails.
• Stuck in standby.
• Dead.
• Switches off completely after switch on. No standby function. (+ extract of circuit diagram)
• Intermittent no image or yellow colouring. Knock sensitive. (picture attached)
• No picture content. Picture is greyish. (extract of circuit diagram attached)
• Unusual TXT. (54337500 tips)
• Line transformer starts up with an amplitude of 400V blemished by many interference lines.
• In a grey area - independent of colour saturation - you can see 2 vertical zones approx 15cm wide, greeny blue in colour with coloured edges.
• Programmes change by themselves. RC is OK.
• PSU is defective. 300V is present.
• At switch ON, set screams. Pressing on the on/off switch gives same condition. Standby LED's off.
• Unstable picture. (picture attached)
• Switches to protection mode. at start-up. (part of circuit diagram displayed)
• Appliance whistles. Sound and picture present. Picture interference (lines approx one centimeter apart over the whole of the picture).
• 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)
• FBT blows after a few mins. (extract of circuit diagram attached)
• Goes into safety mode at switch on. If FBT is unsoldered then HT is re-established. No apparent S/C in secondary of FBT. (picture attached)
• Whenever a function is requested display lights up then switches off.
• Picture goes off after 1 minute; very low contrast, ok through scart. (part of circuit diagram displayed)
• No PSU start-up.
• Horizontal line.
• No functions. after a while.
• Line frequency changes downward (squeaking, whistling).
• Black bar on the right side of the screen. Similar to displacement. (part of circuit diagram displayed)
• Horizontal jitter. when cold.
• Erratic functions. (extract of circuit diagram attached)
• Poor shading of picture, dark on one side and light on the other. (picture attached)
• Faulty colour (green tinge, on upper picture edge, intermittently present). B/W picture OK. TXT and menu are OK too.
• No audio (when cold). (service info for SCHAUBLORENZ -54337500)
• Low brightness. Picture too big.
• Poor audio.
• After the appliance is switched off a large spot of light appears for several seconds in the middle of the screen. (extract of circuit diagram attached)
• PSU doesn't start up when cold. (picture attached)