54336550 / SCHAUBLORENZ [TV (Standard)]

• Picture tearing. (SCHAUBLORENZ - 54336550 information)
• No raster sync in HF. Ok in scart. (with circuit diagram extract)
• Vertical and horizontal synchronisation available only after 2 mins.
• Resistor R775 is defective. (SCHAUBLORENZ - 54336550 information)
• Black screen. Display flashes once at switch on.
• Tripping.
• Transistor T701 fails when appliance is switched off and on.
• E/W fault. (with circuit diagram extract)
• No picture. on lower half screen. (with circuit diagram extract)
• No horizontal synchronisation. (+ extract of circuit diagram)
• Dark screen, only diffuse glow.
• Vertical collapse. (with circuit diagram extract)
• If switched to standby, appliance pulsates and can be heard in loudspeakers. (part of circuit diagram displayed)
• Dark picture. intermittently.
• Poor audio.
• Only standby LED lit. LED switches off at switch on then no function.
• No colour.
• Line BU is abnormally hot.
• Grey picture at switch on and sound which disappears after 15 mins. Grey screen with frizzy line on the sides when pressing G2.
• Vertical IC fails. (picture attached)
• Vertical, bright stripe faintly visible in the right third of the picture.
• Excessive brightness. in the centre. (with circuit diagram extract)
• Line BU voltage = 140V. Value of capacitor C701 (in PSU) illegible. Still no display if line BU disconnected. (picture attached)
• Picture is distorted and changes. Loss of colours. (extract of circuit diagram attached)
• Does not start from Standby.
• Picture shifted to the left. Sometimes picture fails completely, then still only picture blanking stripes visible. (extract of circuit diagram attached)
• 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.
• 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 output stage fails at switch on. With load (lamp) appliance can be switched on with squeaking noise. (+ extract of circuit diagram)
• Switches off when selecting a function via RC.
• Too wide picture and East/West pincushion curving outward. (+ extract of circuit diagram)
• High voltage build up for short time then PSU switches off. (with circuit diagram extract)
• Faint and too dark picture. Low brightness, contrast cannot be adjusted. Colour is adjustable.
• Does not go into TXT mode. Mixed mode possible.
• Cuts out after switch on, soft hum from the speakers in standby mode.
• Does not fully go to TXT or only blue mix TXT. (part of circuit diagram displayed)
• Horizontal white line.
• Black vertical bars on picture, mostly visible in AV with no video source. (extract of circuit diagram attached)
• Text selection is not possible, takes only Mix or full text but not both. Also various other functions are defective.
• When TV started up, transistor (S2000AF) instantly burn out. (part of circuit diagram displayed)
• No horizontal or vertical deflection. (54336550 tips)
• T501 fails repeatedly.
• Picture is too wide. E/W distorted.
• 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.
• Blank raster.
• Excessive vertical size. Vertical foldover at bottom.
• Picture goes off after 1 minute; very low contrast, ok through scart. (extract of circuit diagram attached)
• Programmes change by themselves. RC is OK.
• Wavy picture. at top. (picture attached)
• Excessive horizontal size. (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. (part of circuit diagram displayed)
• White screen. Flyback lines.
• Ok with signal. Without signal: unstable line frequency, line stage transformer makes a loud whistling noise and T511 (scanning transistor) shorts. (+ extract of circuit diagram) (SCHAUBLORENZ - 54336550 information)
• Stops after 5 seconds. No standby LED. (extract of circuit diagram attached) (54336550 tips)
• PSU is defective. 300V is present. (54336550 SCHAUBLORENZ repair tip)
• Brightness differs between left and right hand side of the screen.
• Picture collapse on half of the picture.
• Distorted vertical linearity. Barrel distortion. (+ extract of circuit diagram)
• Vertical jitter. when cold.
• Shuts down. after start-up. (with circuit diagram extract)
• Secondary voltages appear for 1 to 2 secs. then nothing else. Standby LED switches off.
• Motorboating noise at switch on then goes into standby. When frame IC is unsoldered TV starts up. (picture attached)
• No audio (when cold).
• LED lights up briefly then nothing more.
• Top third of screen has ragged vertical lines.
• Picture shifted to the left. Alignment works normally. (+ extract of circuit diagram)
• Does not switch to standby. (+ extract of circuit diagram) (SCHAUBLORENZ - 54336550 information)
• At start up the power supply starts up for 2 secs then the appliance apparently goes into safety mode. No fault on the secondary.
• Picture and sound missing. Via scart socket with video recorder OK (+ extract of circuit diagram)
• After approx 20 mins colour TV switches off.
• Only snow in the picture, after changing the tuner the fault is still there.
• Left picture side is brighter, even via AV. (picture attached)
• At the top edge of the picture an unusual stain effect appears and line tearing.
• No start-up. (picture attached)
• Will not select text, or will only select mix or full text but not both, various other functions faulty.
• Automatic B/G-L detection does not work correctly with the Nicam sound carrier (TF1, FRANCE 2).
• Line tearing. (part of circuit diagram displayed)
• Reduced vertical size.
• Picture shifted to the left, too small and not adjustable. (part of circuit diagram displayed)
• Power supply seems to remain in safety mode. (part of circuit diagram displayed)
• Dark picture on 2/3 of screen on the left but brighter on 1/3 of screen on the right. (+ extract of circuit diagram)
• 10cm black bar on the right of the screen. Voltages ok, corrections work. (+ extract of circuit diagram)
• Double picture.
• Dark picture. on the right. (extract of circuit diagram attached)
• Buzzing at start-up.
• Picture is out of alignment horizontally. 10cm black bar on the right. (+ extract of circuit diagram)
• HV builds up briefly and then shuts down
• No HT output from power supply. OK in standby. (picture attached)
• Vertical lines. No colour. after a while.
• Output transistor (S2000) fails when started from cold.
• Blue, vertical stripe in the right third of the picture.
• No vertical deflection. Horizontal line. Audio OK . (with circuit diagram extract)
• AV correction.
• Horizontal stripe. in the centre.
• Slow start-up. when cold. (picture attached)
• Approx. 1cm bright, vertical line on the right hand side of the picture approx. 10cm from the edge.
• No horizontal synchronisation. at start-up. (+ extract of circuit diagram)
• No functions. after a while.
• Pulsating picture. (part of circuit diagram displayed)
• Impossible to adjust synchronisation. Picture shifted towards left. Right side of picture reduced by 8cm. (+ extract of circuit diagram)
• Excessive HV. (extract of circuit diagram attached)
• 88 shown on LED display.
• 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.
• Programming menu can not be accessed. (part of circuit diagram displayed)
• Builds up high voltage for a short time and then switches off. (+ extract of circuit diagram)
• Does not switch on. Fluttering noise from the loudspeakers. (part of circuit diagram displayed)
• The teletext contrast is considerably too high after installing the teletext decoder.
• PSU chirps, at the same time bubbling and hum in loudspeakers. No functions. (extract of circuit diagram attached)
• Blank screen with purple haze at left hand side. (part of circuit diagram displayed)
• Starts with noise (approx. 2-3 seconds), then it operates normally. (with circuit diagram extract)
• Distorted picture. on the right. (+ 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.
• Brightness varies. E/W fault. intermittently. (54336550 tips)
• No start-up (when cold). (54336550 SCHAUBLORENZ repair tip)
• No picture. Hum in audio.
• Stuck in standby; RC ineffective. Stanby LED flickers. (with circuit diagram extract)
• 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.
• Goes into PAL reception when in NICAM reception on channel 64, programme N1. (SCHAUBLORENZ - 54336550 information)
• Picture shaking in a random direction. (extract of circuit diagram attached)
• Picture appears slowly. (picture attached)
• Bright raster. Flyback lines.
• Illegible display. (part of circuit diagram displayed) (service info for SCHAUBLORENZ -54336550)
• No picture content. Picture is greyish. (picture attached)
• Noise in picture. Poor horizontal synchronisation. (service info for SCHAUBLORENZ -54336550)
• Line transistor S2000AF defective at switch on from cold. (extract of circuit diagram attached)
• Unusual TXT.
• Line transformer starts up with an amplitude of 400V blemished by many interference lines.
• No start up after changing IC601. Nothing lights up on the front.
• Few segments of the display too bright. Doesn't respond to commands.
• 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.
• Centre of snowy picture is darker than edges. (with circuit diagram extract) (54336550 tips)
• 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.
• Blocked control processor.
• Picture with vertical and horizontal lines (when cold).
• No tuning. Higher channels in band I/III/V are not received.
• Remains in standby after changing power IC. (+ extract of circuit diagram)
• At switch on picture is condensed tnen enlarged. Pops loudly at approx 2 pulses per sec. Intermittent blast from speakers. (+ extract of circuit diagram)
• Reduced contrast, especially on one side of the screen.
• Line transformer starts up but no display, nothing on the screen and no sound. (with circuit diagram extract)
• Bright vertical stripes. No picture content. Sound OK. (with circuit diagram extract)
• Excessive brightness. Flyback lines. (part of circuit diagram displayed)
• Slightly wavy picture in the middle of the screen. (with circuit diagram extract)
• Horizontal collapse. after a while. (+ extract of circuit diagram)
• Approx 20cm wide dark area in centre of picture and line tearing.
• Intermittent flyback lines. Grey scale varies intermittently. Possibly no picture. (54336550 tips)
• Stuck in standby. (SCHAUBLORENZ - 54336550 information)
• Line synchronisation available only after 2 mins.
• PSU switches from standby to safety mode at switch on.
• PSU starts briefly, then no more HV. (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. (part of circuit diagram displayed)
• Poor PSU start-up or BU defective. (part of circuit diagram displayed)
• Dead. after start-up.
• No HV. (54336550 tips)
• No picture (intermittently).
• Control unit processor is defective. (with circuit diagram extract)
• Operation commands are not carried out.
• Attempts to start with no result. (+ extract of circuit diagram)
• Dark picture.
• Vertical IC (TDA3654) becomes hot, then fails after several hours. Picture OK. (part of circuit diagram displayed)
• Picture is brighter on the right. Poor synchronisation after program switch-over. Picture becomes brighter and darker in AV. (part of circuit diagram displayed)
• Dead.
• Strong blue dominance at top of picture. Rest of picture (approx half) ok. (extract of circuit diagram attached)
• Very slight flickering with a light picture. (picture attached)
• Hum bars, especially on yellow or orange background.
• Switches off completely after switch on. No standby function. (picture attached)
• Poor synchronisation. No picture. after a while.
• No start up after changing FBT and constant whistling noise. (with circuit diagram extract)
• Picture with a 10cm vertical band on the right side. Negative picture behind this black band.
• Whistling HT. No start up due to incorrect HT frequency. May blow S2000 immediately. (part of circuit diagram displayed)
• Sound cracks. Switches off. Display stays. Can be restarted with RC. (part of circuit diagram displayed)
• Switches to standby (intermittently).
• Horizontal synchronisation fault, picture shifted towards left side. (picture attached)
• Shadowing effect, left side of picture is brighter than the right one. (picture attached)
• Power supply hiccups.
• Defective linearity.
• Loud noise. at start-up.
• Picture distorted, shifted upwards and a little bit too wide. (SCHAUBLORENZ - 54336550 information)
• Collapses at start up, then switches off.
• Faulty colour (green tinge, on upper picture edge, intermittently present). B/W picture OK. TXT and menu are OK too.
• Switches off immediately after plugging in mains. (picture attached)
• Loses sync at start-up for a few minutes.
• Coloured lines (RGB test lines) in top of picture.
• Appliance whistles. Sound and picture present. Picture interference (lines approx one centimeter apart over the whole of the picture).
• Low brightness. Picture too big. (service info for SCHAUBLORENZ -54336550)
• Black bars on the bottom of picture. If V-amplitude is altered, picture disappears on the bottom. (extract of circuit diagram attached) (54336550 SCHAUBLORENZ repair tip)
• Vertical hum bars on picture, sometimes very visible and sometimes hardly at all.
• No picture. No audio. (with circuit diagram extract) (54336550 SCHAUBLORENZ repair tip)
• PSU pulsates. Sound crackles. After few secs. appliance works fine.
• 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.
• Channel TF1 (channel 22) does not hold in SECAM: remains in PAL. The other channels are normal. (54336550 tip from SCHAUBLORENZ)
• Picture has moved approx 10cm to the left. Vertical black bar with a few coloured streaks. Colour OK. (part of circuit diagram displayed)
• 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. (with circuit diagram extract)
• Horizontal shaking. when cold.
• FBT blows after a few mins. (picture attached) (service info for SCHAUBLORENZ -54336550)
• No tuning. only on certain channels. Dark screen. on the right. (54336550 tip from SCHAUBLORENZ)
• Line foldover by start-up. No sound. After warm-up, picture and sound are OK. Sync is still unstable.
• White horizontal stripe about 5 cm from the bottom. Picture content bellow stripe is altered and noisy.
• No control and cannot be switched off when started up from standby.
• Display flashing and rattles at switch on. (part of circuit diagram displayed)
• Intermittently line tearing in the middle (approx. 20cm wide). (with circuit diagram extract)
• Noise in audio. (extract of circuit diagram attached)
• No vertical deflection. Only a horizontal bright line appears on CRT. Audio OK. (+ extract of circuit diagram)
• One side of picture is black.
• Eliminate safety mode of PSU. (54336550 SCHAUBLORENZ repair tip)
• EHT is heard starting up then everything stops 4 secs later.
• No vertical deflection. intermittently.
• HV arcing. (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. (with circuit diagram extract)
• HV appears briefly and then disappears. (picture attached)
• Intermittently dead. (with circuit diagram extract) (54336550 SCHAUBLORENZ repair tip)
• No picture. Audio OK . (with circuit diagram extract)
• Blanking interval on left side of picture, colour flickers and screen dark after a while.
• Reduced raster size. (part of circuit diagram displayed)
• Line tearing. at top. (picture attached)
• Horizontal picture position is incorrect, 5cm to the left. No picture intermittently. (picture attached)
• Focus problem. Blurred vertically, ok horizontally after replacing microprocessor and line transformer.
• Can be switched to standby only if power plug is pulled out.
• Picture takes 15 secs. to appear. Sound ok and EHT present.
• 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 jitter. when cold.
• Erratic functions. (+ extract of circuit diagram)
• Picture too big. (with circuit diagram extract) (54336550 tips)
• Dark screen. on the right. (with circuit diagram extract)
• Comes on for a short time. (picture attached) (service info for SCHAUBLORENZ -54336550)
• Does not start up each time. When it functions, whistling and modulation of picture. This gets less in time.
• No functions. Red LED does not flash.
• Only blue light at right in picture.
• When appliance receives in Nicam stereo, the TV goes into PAL.
• 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)
• NICAM is missing.
• Black picture. Sound OK. Picture is OK after restart. (picture attached)
• Control unit does not function. Does not switch on. (picture attached)
• Dark picture. Stripes after a while. OK after warm-up. (part of circuit diagram displayed)
• At switch ON, set screams. Pressing on the on/off switch gives same condition. Standby LED's off.
• No start-up from standby.
• Very pale picture which is shifted to the left. Voltage is correct. (extract of circuit diagram attached)
• Noise in the speakers and no start up or display on the front panel when switching on. (with circuit diagram extract)
• 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) (54336550 SCHAUBLORENZ repair tip)
• PSU doesn't start up when cold. (part of circuit diagram displayed) (SCHAUBLORENZ - 54336550 information)
• Hums at switch on, dies out slowly.
• Whenever a function is requested display lights up then switches off.
• Unclear picture with Hum content.
• Poor line and picture synchronisation when cold.
• Shuts down. (extract of circuit diagram attached)
• Line frequency changes downward (squeaking, whistling).
• Intermittent no image or yellow colouring. Knock sensitive. (picture attached)
• No E/W correction. (with circuit diagram extract)
• Random operation commands.
• Halts at switch on when cold. No start up. OK after a few attempts. (+ extract of circuit diagram)
• From a cold start line output stage transistor fails. (54336550 tips)
• Flashing picture. (extract of circuit diagram attached)
• At switch on appliance pulsated then reverts to standby again. (54336550 tip from SCHAUBLORENZ)
• Intermittent loss of brightness, picture is black. Can be adjusted with RC. Or vice versa, picture is too light and can be adjusted.
• 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)
• Blue screen. Flyback lines. Audio OK .
• Picture only appears about 3 mins after switch on, when appliance is cold.
• Poor PSU start up. Severe crackle in the loudspeaker.
• Time constant switching over only occurs on memory sites 37 to 39 and AV.
• Vertical line tearing. intermittently.
• Pincushion distortion.
• Intermittent block.
• Picture rolls. when cold. (picture attached)
• Picture shifted to the right.
• White, horizontal lines at the top of the picture. Lines decrease after a while but never disappear completely.
• Long picture at start up, black screen with rainbow spots.
• Afterglow on deflection tube after switch off.
• Standby display lights up briefly, then no function.
• Unstable horizontal picture.
• No functions.
• Vertical curtain-like stripes which may be distributed over the entire screen. (extract of circuit diagram attached)
• E/W-fault.
• Hums at switch on. (part of circuit diagram displayed)
• High voltage runs high. Flashover all over.
• Black bar on the right side of the screen. Similar to displacement. (part of circuit diagram displayed)
• Bright picture. on the right. Dark picture. on the left. (part of circuit diagram displayed)
• 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.
• Vertical dark bands running from left to centre of picture and separated by approx. 5cm.
• E/W trapezium does not function.
• Motorboating noise at switch on. Pin 13 of the TDA8372A is unsoldered. TV no longer pulsates. Power supply voltages ok. (picture attached)
• 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. (picture attached)
• No start up, no standby light, variable voltage on pin 16 of IC701. (extract of circuit diagram attached)
• Power supply defective after a few days. (picture attached)
• At Power On standby LED switches off immediately after switching on.
• Switches to protection mode. at start-up. (extract of circuit diagram attached)
• Does not switch ON. No power light showing.
• Occasionally blue screen. Picture ok when G2 adjusted then disappears again. When pressed too much picture remains incorrect then disappears. (54336550 tip from SCHAUBLORENZ)
• Resistor R515 becomes defective. (+ extract of circuit diagram)
• Does not go into text mode, mix mode is not possible.
• Cycles on/off.
• Convex picture. Defective lower linearity. (with circuit diagram extract) (54336550 SCHAUBLORENZ repair tip)
• Unstable picture. (part of circuit diagram displayed)
• Picture shifted to the left. (with circuit diagram extract)
• Standby display lights up for a short time. Line output stage attempts to function, but switches off immediately.
• The picture is too large and wavers.
• Vertical or horizontal picture shaking both when hot and cold. (part of circuit diagram displayed)
• 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. (+ extract of circuit diagram)
• Instructions on how to put appliance into Service-Mode.
• Horizontal line.
• PSU doesn't start-up or only after a while. Cracking sound.
• No synchronisation during the first few mins. (with circuit diagram extract)
• No TXT.
• PSU fails intermittently. (picture attached)
• High voltage transistor (S2000) defective. (with circuit diagram extract)
• Switches to standby when mains switch is plugged in. Switches off when using RCU. (+ extract of circuit diagram)
• White point when switching off with ON/OFF switch. No point in standby.
• No PSU start-up.
• Lines in picture.
• No colour (intermittently). (54336550 tips)
• Wavy vertical lines in the entire picture when cold. Picture jitters. (part of circuit diagram displayed)
• No synchronisation (after start-up). (+ extract of circuit diagram)
• DF-AF adjustment.
• 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)
• No TXT (intermittently).
• 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. (with circuit diagram extract)
• Poor vertical linearity at the bottom, also E/W error.
• Poor shading of picture, dark on one side and light on the other. (+ extract of circuit diagram)
• Picture amplitude is too weak.
• Insufficient picture heigth (10cm) and severe linear distortion.
• Rattling noise or bubbling at start-up (when cold). (extract of circuit diagram attached)
• Poor adjustment of horizontal picture centering. (picture attached)
• Enter service mode.
• No tuning.
• Sound channel 1 and 2 voltage level adjustment.
• PSU can not be loaded with 60W incandescent lamp.
• NICAM check.
• Horizontal jitter. Vertical jitter. (with circuit diagram extract)
• Picture shifted horizontally. (+ extract of circuit diagram)