54337380 / SCHAUBLORENZ [TV (Standard)]

• Dark picture.
• PSU pulsates. Sound crackles. After few secs. appliance works fine. (54337380 tip from SCHAUBLORENZ)
• Eliminate safety mode of PSU. (54337380 tip from SCHAUBLORENZ)
• Poor audio.
• Line synchronisation available only after 2 mins.
• Picture is brighter on the right. Poor synchronisation after program switch-over. Picture becomes brighter and darker in AV. (+ extract of circuit diagram)
• Dark picture. intermittently.
• Power supply seems to remain in safety mode. (extract of circuit diagram attached)
• Ok with signal. Without signal: unstable line frequency, line stage transformer makes a loud whistling noise and T511 (scanning transistor) shorts. (picture attached)
• No E/W correction. (extract of circuit diagram attached)
• Flashing picture. (+ extract of circuit diagram)
• Text selection is not possible, takes only Mix or full text but not both. Also various other functions are defective.
• No picture. Audio OK . (picture attached)
• 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)
• Line output stage fails at switch on. With load (lamp) appliance can be switched on with squeaking noise. (+ extract of circuit diagram)
• Black picture. Sound OK. Picture is OK after restart. (picture attached)
• Intermittent block. (54337380 tips)
• Dark picture. Stripes after a while. OK after warm-up. (with circuit diagram extract)
• Picture with vertical and horizontal lines (when cold).
• Reduced raster size. (part of circuit diagram displayed)
• Hums at switch on. (picture attached)
• Distorted vertical linearity. Barrel distortion. (picture attached)
• No picture content. Picture is greyish. (+ 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)
• 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.
• At switch on picture is condensed tnen enlarged. Pops loudly at approx 2 pulses per sec. Intermittent blast from speakers. (part of circuit diagram displayed)
• Picture tearing.
• Poor PSU start-up or BU defective. (picture attached)
• Reduced vertical size.
• Does not start from Standby.
• 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. (54337380 SCHAUBLORENZ repair tip)
• Horizontal jitter. Vertical jitter. (+ extract of circuit diagram)
• Tripping.
• Line foldover by start-up. No sound. After warm-up, picture and sound are OK. Sync is still unstable.
• Stuck in standby. (SCHAUBLORENZ - 54337380 information)
• Output transistor (S2000) fails when started from cold.
• Too wide picture and East/West pincushion curving outward. (extract of circuit diagram attached)
• Blue screen. Flyback lines. Audio OK .
• Black bar on the right side of the screen. Similar to displacement. (picture attached)
• No tuning. Higher channels in band I/III/V are not received.
• Vertical dark bands running from left to centre of picture and separated by approx. 5cm.
• Picture with a 10cm vertical band on the right side. Negative picture behind this black band.
• Illegible display. (picture attached)
• No raster sync in HF. Ok in scart. (part of circuit diagram displayed)
• Only standby LED lit. LED switches off at switch on then no function.
• Channel TF1 (channel 22) does not hold in SECAM: remains in PAL. The other channels are normal.
• PSU starts briefly, then no more HV. (extract of circuit diagram attached)
• Line tearing. at top. (with circuit diagram extract) (54337380 tip from SCHAUBLORENZ)
• 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 attached)
• PSU fails intermittently. (+ extract of circuit diagram)
• Comes on for a short time. (picture attached)
• Stuck in standby; RC ineffective. Stanby LED flickers. (picture attached)
• Switches off completely after switch on. No standby function. (with circuit diagram extract)
• EHT is heard starting up then everything stops 4 secs later.
• Picture appears slowly. (part of circuit diagram displayed)
• Top third of screen has ragged vertical lines.
• Lines in picture.
• Intermittent no image or yellow colouring. Knock sensitive. (picture attached)
• Shuts down. (with circuit diagram extract) (54337380 tips)
• Starts with noise (approx. 2-3 seconds), then it operates normally. (+ extract of circuit diagram)
• Occasionally blue screen. Picture ok when G2 adjusted then disappears again. When pressed too much picture remains incorrect then disappears.
• High voltage transistor (S2000) defective. (part of circuit diagram displayed)
• Bright raster. Flyback lines.
• Poor vertical linearity at the bottom, also E/W error.
• Picture rolls. when cold. (part of circuit diagram displayed)
• Poor PSU start up. Severe crackle in the loudspeaker.
• At the top edge of the picture an unusual stain effect appears and line tearing.
• Unclear picture with Hum content.
• Only snow in the picture, after changing the tuner the fault is still there.
• No control and cannot be switched off when started up from standby.
• 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)
• When TV started up, transistor (S2000AF) instantly burn out. (+ extract of circuit diagram)
• Wavy picture. at top. (with circuit diagram extract) (54337380 tips)
• Picture goes off after 1 minute; very low contrast, ok through scart. (picture attached)
• Picture shifted to the left, too small and not adjustable. (extract of circuit diagram 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) (service info for SCHAUBLORENZ -54337380)
• Vertical line tearing. intermittently.
• Faulty colour (green tinge, on upper picture edge, intermittently present). B/W picture OK. TXT and menu are OK too.
• AV correction.
• No vertical deflection. intermittently.
• PSU switches from standby to safety mode at switch on.
• Very pale picture which is shifted to the left. Voltage is correct. (with circuit diagram extract)
• Does not start up each time. When it functions, whistling and modulation of picture. This gets less in time.
• Picture shifted to the right.
• Blocked control processor.
• PSU chirps, at the same time bubbling and hum in loudspeakers. No functions. (picture attached)
• Vertical jitter. when cold.
• Poor adjustment of horizontal picture centering. (part of circuit diagram displayed)
• Left picture side is brighter, even via AV. (extract of circuit diagram attached)
• Blanking interval on left side of picture, colour flickers and screen dark after a while.
• Horizontal collapse. after a while. (extract of circuit diagram attached)
• Picture shifted to the left. (part of circuit diagram displayed)
• Black vertical bars on picture, mostly visible in AV with no video source. (extract of circuit diagram attached)
• Black bars on the bottom of picture. If V-amplitude is altered, picture disappears on the bottom. (with circuit diagram extract)
• When appliance receives in Nicam stereo, the TV goes into PAL.
• Dead. after start-up.
• Motorboating noise at switch on. Pin 13 of the TDA8372A is unsoldered. TV no longer pulsates. Power supply voltages ok. (with circuit diagram extract) (SCHAUBLORENZ - 54337380 information)
• Intermittently line tearing in the middle (approx. 20cm wide). (with circuit diagram extract)
• 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.
• White, horizontal lines at the top of the picture. Lines decrease after a while but never disappear completely.
• Vertical, bright stripe faintly visible in the right third of the picture.
• E/W trapezium does not function.
• Sound cracks. Switches off. Display stays. Can be restarted with RC. (picture attached)
• Remains in standby after changing power IC. (part of circuit diagram displayed)
• No synchronisation during the first few mins. (picture attached)
• Defective linearity. (54337380 SCHAUBLORENZ repair tip)
• HV appears briefly and then disappears. (picture attached) (SCHAUBLORENZ - 54337380 information)
• E/W fault. (part of circuit diagram displayed)
• Standby display lights up briefly, then no function.
• Grey picture at switch on and sound which disappears after 15 mins. Grey screen with frizzy line on the sides when pressing G2.
• No audio (when cold).
• Buzzing at start-up.
• Strong blue dominance at top of picture. Rest of picture (approx half) ok. (picture attached)
• Line transformer starts up but no display, nothing on the screen and no sound. (with circuit diagram extract)
• Excessive brightness. in the centre. (part of circuit diagram displayed) (54337380 tips)
• Horizontal line.
• Picture shaking in a random direction. (extract of circuit diagram attached)
• No colour (intermittently).
• Intermittent flyback lines. Grey scale varies intermittently. Possibly no picture.
• Vertical lines. No colour. after a while. (service info for SCHAUBLORENZ -54337380)
• No start-up (when cold).
• Picture takes 15 secs. to appear. Sound ok and EHT present.
• Intermittent loss of brightness, picture is black. Can be adjusted with RC. Or vice versa, picture is too light and can be adjusted.
• Brightness differs between left and right hand side of the screen.
• No HT output from power supply. OK in standby. (with circuit diagram extract)
• Time constant switching over only occurs on memory sites 37 to 39 and AV.
• 10cm black bar on the right of the screen. Voltages ok, corrections work. (+ extract of circuit diagram)
• Goes into PAL reception when in NICAM reception on channel 64, programme N1.
• Pulsating picture. (with circuit diagram extract)
• Does not switch to standby. (+ extract of circuit diagram) (54337380 SCHAUBLORENZ repair tip)
• Vertical or horizontal picture shaking both when hot and cold. (extract of circuit diagram attached)
• Line tearing. (part of circuit diagram displayed)
• Picture is out of alignment horizontally. 10cm black bar on the right. (with circuit diagram extract)
• Operation commands are not carried out. (54337380 tips)
• At switch on appliance pulsated then reverts to standby again.
• No functions. Red LED does not flash.
• Whistling HT. No start up due to incorrect HT frequency. May blow S2000 immediately. (with circuit diagram extract)
• Control unit processor is defective. (part of circuit diagram displayed)
• Attempts to start with no result. (picture attached)
• T501 fails repeatedly.
• White point when switching off with ON/OFF switch. No point in standby. (54337380 tips)
• Builds up high voltage for a short time and then switches off. (picture attached)
• No colour.
• Hum bars, especially on yellow or orange background.
• No vertical deflection. Horizontal line. Audio OK . (extract of circuit diagram attached)
• 88 shown on LED display.
• Line BU is abnormally hot.
• Erratic functions. (extract of circuit diagram attached)
• Blue, vertical stripe in the right third of the picture. (54337380 tips)
• Faint and too dark picture. Low brightness, contrast cannot be adjusted. Colour is adjustable.
• Picture amplitude is too weak.
• 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)
• Random operation commands. (54337380 SCHAUBLORENZ repair tip)
• Switches to standby (intermittently).
• White horizontal stripe about 5 cm from the bottom. Picture content bellow stripe is altered and noisy.
• Bright picture. on the right. Dark picture. on the left. (picture attached)
• Convex picture. Defective lower linearity. (+ extract of circuit diagram)
• Noise in audio. (+ extract of circuit diagram)
• Standby display lights up for a short time. Line output stage attempts to function, but switches off immediately.
• Unusual TXT.
• 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)
• Picture is too wide. E/W distorted.
• Vertical and horizontal synchronisation available only after 2 mins.
• Very slight flickering with a light picture. (with circuit diagram extract)
• Horizontal stripe. in the centre.
• White screen. Flyback lines.
• PSU doesn't start up when cold. (extract of circuit diagram attached) (54337380 tip from SCHAUBLORENZ)
• Pincushion distortion.
• At start up the power supply starts up for 2 secs then the appliance apparently goes into safety mode. No fault on the secondary.
• High voltage build up for short time then PSU switches off. (+ extract of circuit diagram)
• Excessive vertical size. Vertical foldover at bottom.
• Poor shading of picture, dark on one side and light on the other. (part of circuit diagram displayed) (54337380 SCHAUBLORENZ repair tip)
• The teletext contrast is considerably too high after installing the teletext decoder.
• Picture too big. (+ extract of circuit diagram)
• At switch ON, set screams. Pressing on the on/off switch gives same condition. Standby LED's off.
• NICAM is missing.
• No functions.
• Vertical curtain-like stripes which may be distributed over the entire screen. (picture attached)
• PSU is defective. 300V is present.
• PSU doesn't start-up or only after a while. Cracking sound.
• Switches off immediately after plugging in mains. (with circuit diagram extract)
• Picture has moved approx 10cm to the left. Vertical black bar with a few coloured streaks. Colour OK. (extract of circuit diagram attached)
• No horizontal or vertical deflection.
• Does not switch ON. No power light showing.
• Automatic B/G-L detection does not work correctly with the Nicam sound carrier (TF1, FRANCE 2).
• Excessive HV. (+ extract of circuit diagram)
• DF-AF adjustment.
• Switches off when selecting a function via RC.
• Shuts down. after start-up. (extract of circuit diagram attached)
• No start-up. (picture attached)
• Vertical IC fails. (extract of circuit diagram attached)
• 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 attached)
• No start up after changing IC601. Nothing lights up on the front.
• Excessive horizontal size. (part of circuit diagram displayed)
• Approx 20cm wide dark area in centre of picture and line tearing.
• Does not go into TXT mode. Mixed mode possible.
• After approx 20 mins colour TV switches off.
• Poor line and picture synchronisation when cold.
• Unstable picture. (with circuit diagram extract)
• Horizontal shaking. when cold.
• At Power On standby LED switches off immediately after switching on.
• No picture. on lower half screen. (extract of circuit diagram attached) (SCHAUBLORENZ - 54337380 information)
• 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.
• HV arcing. (+ extract of circuit diagram)
• Vertical hum bars on picture, sometimes very visible and sometimes hardly at all.
• No horizontal synchronisation. at start-up. (with circuit diagram extract) (service info for SCHAUBLORENZ -54337380)
• Does not fully go to TXT or only blue mix TXT. (part of circuit diagram displayed)
• Picture shifted to the left. Alignment works normally. (+ extract of circuit diagram)
• Horizontal picture position is incorrect, 5cm to the left. No picture intermittently. (with circuit diagram extract) (54337380 tips)
• Picture collapse on half of the picture.
• Picture shifted horizontally. (extract of circuit diagram attached)
• Dark screen, only diffuse glow.
• No functions. after a while.
• Only blue light at right in picture.
• 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. (part of circuit diagram displayed)
• Insufficient picture heigth (10cm) and severe linear distortion.
• Loses sync at start-up for a few minutes.
• Brightness varies. E/W fault. intermittently.
• Line BU voltage = 140V. Value of capacitor C701 (in PSU) illegible. Still no display if line BU disconnected. (part of circuit diagram displayed) (54337380 SCHAUBLORENZ repair tip)
• Instructions on how to put appliance into Service-Mode.
• Transistor T701 fails when appliance is switched off and on.
• If switched to standby, appliance pulsates and can be heard in loudspeakers. (part of circuit diagram displayed)
• Slow start-up. when cold. (+ extract of circuit diagram)
• Programmes change by themselves. RC is OK.
• Cuts out after switch on, soft hum from the speakers in standby mode.
• Horizontal jitter. when cold.
• 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)
• Excessive brightness. Flyback lines. (+ extract of circuit diagram)
• No start up after changing FBT and constant whistling noise. (part of circuit diagram displayed)
• Programming menu can not be accessed. (with circuit diagram extract)
• Power supply defective after a few days. (part of circuit diagram displayed)
• High voltage runs high. Flashover all over.
• Whenever a function is requested display lights up then switches off.
• Collapses at start up, then switches off.
• Resistor R775 is defective.
• Enter service mode.
• Distorted picture. on the right. (part of circuit diagram displayed) (service info for SCHAUBLORENZ -54337380)
• Low brightness. Picture too big.
• Afterglow on deflection tube after switch off.
• Reduced contrast, especially on one side of the screen. (54337380 SCHAUBLORENZ repair tip)
• No PSU start-up.
• Wavy vertical lines in the entire picture when cold. Picture jitters. (part of circuit diagram displayed)
• No TXT.
• Few segments of the display too bright. Doesn't respond to commands.
• LED lights up briefly then nothing more.
• Does not go into text mode, mix mode is not possible.
• Shadowing effect, left side of picture is brighter than the right one. (with circuit diagram extract)
• Dead.
• From a cold start line output stage transistor fails.
• Secondary voltages appear for 1 to 2 secs. then nothing else. Standby LED switches off.
• Vertical collapse. (+ extract of circuit diagram)
• Blank screen with purple haze at left hand side. (extract of circuit diagram attached)
• Picture is distorted and changes. Loss of colours. (part of circuit diagram displayed)
• Approx. 1cm bright, vertical line on the right hand side of the picture approx. 10cm from the edge.
• Noise in the speakers and no start up or display on the front panel when switching on. (with circuit diagram extract)
• Resistor R515 becomes defective. (part of circuit diagram displayed)
• Hums at switch on, dies out slowly.
• No TXT (intermittently).
• Appliance whistles. Sound and picture present. Picture interference (lines approx one centimeter apart over the whole of the picture).
• Line frequency changes downward (squeaking, whistling).
• Coloured lines (RGB test lines) in top of picture.
• Black screen. Display flashes once at switch on.
• Horizontal white line.
• Line transistor S2000AF defective at switch on from cold. (extract of circuit diagram attached)
• Will not select text, or will only select mix or full text but not both, various other functions faulty.
• Dark screen. on the right. (part of circuit diagram displayed)
• No vertical deflection. Only a horizontal bright line appears on CRT. Audio OK. (part of circuit diagram displayed)
• Stops after 5 seconds. No standby LED. (+ extract of circuit diagram)
• No horizontal synchronisation. (picture attached)
• 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. (extract of circuit diagram attached)
• Bright vertical stripes. No picture content. Sound OK. (extract of circuit diagram attached)
• 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.
• Vertical IC (TDA3654) becomes hot, then fails after several hours. Picture OK. (with circuit diagram extract)
• Picture and sound missing. Via scart socket with video recorder OK (picture attached)
• Dark picture on 2/3 of screen on the left but brighter on 1/3 of screen on the right. (+ extract of circuit diagram)
• 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.
• Power supply hiccups.
• Poor synchronisation. No picture. after a while.
• The picture is too large and wavers.
• Control unit does not function. Does not switch on. (part of circuit diagram displayed)
• Picture distorted, shifted upwards and a little bit too wide.
• No picture. No audio. (with circuit diagram extract)
• NICAM check.
• Loud noise. at start-up.
• Double picture.
• Long picture at start up, black screen with rainbow spots.
• Can be switched to standby only if power plug is pulled out. (service info for SCHAUBLORENZ -54337380)
• Slightly wavy picture in the middle of the screen. (with circuit diagram extract)
• Line transformer starts up with an amplitude of 400V blemished by many interference 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.
• Centre of snowy picture is darker than edges. (picture attached)
• Unstable horizontal picture.
• Does not switch on. Fluttering noise from the loudspeakers. (+ extract of circuit diagram)
• Dark picture. on the right. (+ extract of circuit diagram)
• Focus problem. Blurred vertically, ok horizontally after replacing microprocessor and line transformer. (54337380 tip from SCHAUBLORENZ)
• FBT blows after a few mins. (with circuit diagram extract)
• E/W-fault.
• Motorboating noise at switch on then goes into standby. When frame IC is unsoldered TV starts up. (+ extract of circuit diagram)
• Picture shifted to the left. Sometimes picture fails completely, then still only picture blanking stripes visible. (picture attached)
• No tuning. only on certain channels. Dark screen. on the right.
• No synchronisation (after start-up). (part of circuit diagram displayed)
• Blank raster. (54337380 tips)
• Horizontal synchronisation fault, picture shifted towards left side. (extract of circuit diagram attached)
• 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.
• Noise in picture. Poor horizontal synchronisation.
• PSU can not be loaded with 60W incandescent lamp.
• No picture. Hum in audio.
• Picture only appears about 3 mins after switch on, when appliance is cold.
• Rattling noise or bubbling at start-up (when cold). (with circuit diagram extract)
• Intermittently dead. (with circuit diagram extract)
• Impossible to adjust synchronisation. Picture shifted towards left. Right side of picture reduced by 8cm. (part of circuit diagram displayed)
• One side of picture is black.
• HV builds up briefly and then shuts down
• Display flashing and rattles at switch on. (extract of circuit diagram attached)
• Switches to standby when mains switch is plugged in. Switches off when using RCU. (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.
• No HV.
• No start-up from standby.
• No tuning.
• In a grey area - independent of colour saturation - you can see 2 vertical zones approx 15cm wide, greeny blue in colour with coloured edges. (54337380 tips)
• 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.
• Halts at switch on when cold. No start up. OK after a few attempts. (extract of circuit diagram attached)
• No picture (intermittently).
• No start up, no standby light, variable voltage on pin 16 of IC701. (extract of circuit diagram attached)
• Switches to protection mode. at start-up. (+ extract of circuit diagram)
• Cycles on/off. (service info for SCHAUBLORENZ -54337380)
• Sound channel 1 and 2 voltage level adjustment.