25D61 / SCHAUBLORENZ [TV]

• The picture is too large and wavers.
• Switches off immediately after plugging in mains. (extract of circuit diagram attached)
• Excessive brightness. in the centre. (with circuit diagram extract)
• No vertical deflection. Horizontal line. Audio OK . (picture attached)
• Illegible display. (+ extract of circuit diagram)
• Dark picture. Stripes after a while. OK after warm-up. (with circuit diagram extract)
• Cuts out after switch on, soft hum from the speakers in standby mode.
• Picture shifted to the right.
• Only snow in the picture, after changing the tuner the fault is still there.
• E/W-fault.
• Picture distorted, shifted upwards and a little bit too wide.
• At switch on, lights light up for an instant, voltage which ought to reach 145V increases to 60V but then goes back to 0V. (part of circuit diagram displayed)
• Poor vertical linearity at the bottom, also E/W error.
• NICAM check.
• Picture shifted to the left. (+ extract of circuit diagram)
• Random operation commands.
• Poor line and picture synchronisation when cold.
• Blue screen. Flyback lines. Audio OK .
• Black vertical bars on picture, mostly visible in AV with no video source. (+ extract of circuit diagram)
• Blanking interval on left side of picture, colour flickers and screen dark after a while.
• 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.
• Motorboating noise at switch on. Pin 13 of the TDA8372A is unsoldered. TV no longer pulsates. Power supply voltages ok. (part of circuit diagram displayed)
• No picture. Hum in audio.
• Line tearing. (extract of circuit diagram attached)
• Picture amplitude is too weak.
• Buzzing at start-up.
• Horizontal shaking. 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)
• Black picture. Sound OK. Picture is OK after restart. (part of circuit diagram displayed)
• Enter service mode.
• Automatic B/G-L detection does not work correctly with the Nicam sound carrier (TF1, FRANCE 2).
• Bright raster. Flyback lines. (SCHAUBLORENZ - 25D61 information)
• Picture shifted horizontally. (extract of circuit diagram attached)
• Picture appears slowly. (with circuit diagram extract)
• Control unit processor is defective. (+ extract of circuit diagram)
• Too wide picture and East/West pincushion curving outward. (extract of circuit diagram attached)
• 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)
• Picture and sound missing. Via scart socket with video recorder OK (extract of circuit diagram attached)
• HV appears briefly and then disappears. (part of circuit diagram displayed)
• Intermittent flyback lines. Grey scale varies intermittently. Possibly no picture.
• Vertical lines. No colour. after a while.
• No tuning. only on certain channels. Dark screen. on the right.
• Approx. 1cm bright, vertical line on the right hand side of the picture approx. 10cm from the edge.
• Bright vertical stripes. No picture content. Sound OK. (part of circuit diagram displayed)
• Strong blue dominance at top of picture. Rest of picture (approx half) ok. (part of circuit diagram displayed)
• Dead. after start-up.
• No start up, no standby light, variable voltage on pin 16 of IC701. (part of circuit diagram displayed)
• Noise in audio. (picture 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.
• Standby display lights up briefly, then no function.
• PSU pulsates. Sound crackles. After few secs. appliance works fine.
• In a grey area - independent of colour saturation - you can see 2 vertical zones approx 15cm wide, greeny blue in colour with coloured edges.
• No vertical deflection. Only a horizontal bright line appears on CRT. Audio OK. (+ extract of circuit diagram)
• No horizontal synchronisation. at start-up. (picture attached)
• Picture shifted to the left. Sometimes picture fails completely, then still only picture blanking stripes visible. (extract of circuit diagram attached)
• Halts at switch on when cold. No start up. OK after a few attempts. (picture attached)
• Brightness varies. E/W fault. intermittently.
• White point when switching off with ON/OFF switch. No point in standby.
• Switches off completely after switch on. No standby function. (+ extract of circuit diagram)
• Vertical jitter. when cold.
• Standby display lights up for a short time. Line output stage attempts to function, but switches off immediately.
• Starts with noise (approx. 2-3 seconds), then it operates normally. (extract of circuit diagram attached)
• Slow start-up. when cold. (part of circuit diagram displayed)
• No synchronisation (after start-up). (extract of circuit diagram attached)
• Poor adjustment of horizontal picture centering. (+ extract of circuit diagram) (25D61 tip from SCHAUBLORENZ)
• Excessive horizontal size. (+ extract of circuit diagram)
• Vertical curtain-like stripes which may be distributed over the entire screen. (with circuit diagram extract)
• The teletext contrast is considerably too high after installing the teletext decoder. (25D61 SCHAUBLORENZ repair tip)
• Line synchronisation available only after 2 mins.
• Tripping.
• Top third of screen has ragged vertical lines.
• Output transistor (S2000) fails when started from cold.
• Loses sync at start-up for a few minutes.
• Flashing picture. (+ extract of circuit diagram)
• Poor PSU start up. Severe crackle in the loudspeaker.
• PSU switches from standby to safety mode at switch on.
• Pincushion distortion.
• No PSU start-up. (25D61 tips)
• Dead. (25D61 tip from SCHAUBLORENZ)
• Remains in standby after changing power IC. (+ extract of circuit diagram)
• Faulty colour (green tinge, on upper picture edge, intermittently present). B/W picture OK. TXT and menu are OK too. (25D61 tip from SCHAUBLORENZ)
• Picture shifted to the left. Alignment works normally. (+ extract of circuit diagram)
• Blocked control processor.
• No functions. after a while.
• Channel TF1 (channel 22) does not hold in SECAM: remains in PAL. The other channels are normal.
• Blue, vertical stripe in the right third of the picture.
• Shadowing effect, left side of picture is brighter than the right one. (+ extract of circuit diagram)
• Picture is brighter on the right. Poor synchronisation after program switch-over. Picture becomes brighter and darker in AV. (+ extract of circuit diagram)
• Impossible to adjust synchronisation. Picture shifted towards left. Right side of picture reduced by 8cm. (with circuit diagram extract)
• Intermittently dead. (picture attached)
• No start up after changing FBT and constant whistling noise. (with circuit diagram extract)
• Picture is distorted and changes. Loss of colours. (+ extract of circuit diagram)
• Picture with vertical and horizontal lines (when cold).
• PSU cannot be started from Stand By. 145V voltage in an unloaded condition is at approx 105V, the connected lamp does not light up, the voltage then collapses to approx 20V. (with circuit diagram extract)
• Does not switch ON. No power light showing. (25D61 SCHAUBLORENZ repair tip)
• Intermittent no image or yellow colouring. Knock sensitive. (picture attached)
• PSU doesn't start-up or only after a while. Cracking sound.
• AV correction.
• Does not switch to standby. (extract of circuit diagram attached)
• Occasionally blue screen. Picture ok when G2 adjusted then disappears again. When pressed too much picture remains incorrect then disappears.
• Picture is out of alignment horizontally. 10cm black bar on the right. (picture attached)
• Sound cracks. Switches off. Display stays. Can be restarted with RC. (with circuit diagram extract)
• Unstable picture. (part of circuit diagram displayed)
• Black bars on the bottom of picture. If V-amplitude is altered, picture disappears on the bottom. (part of circuit diagram displayed)
• Power supply defective after a few days. (+ extract of circuit diagram)
• Dark screen, only diffuse glow.
• No functions.
• 10cm black bar on the right of the screen. Voltages ok, corrections work. (picture attached)
• Few segments of the display too bright. Doesn't respond to commands.
• Vertical dark bands running from left to centre of picture and separated by approx. 5cm.
• Brightness differs between left and right hand side of the screen. (25D61 tip from SCHAUBLORENZ)
• Picture goes off after 1 minute; very low contrast, ok through scart. (part of circuit diagram displayed)
• DF-AF adjustment.
• No picture. on lower half screen. (picture attached)
• Stops after 5 seconds. No standby LED. (part of circuit diagram displayed)
• Programmes change by themselves. RC is OK.
• Does not start from Standby.
• Line tearing. at top. (part of circuit diagram displayed)
• Vertical line tearing. intermittently.
• Reduced vertical size.
• Picture takes 15 secs. to appear. Sound ok and EHT present.
• Horizontal white line. (SCHAUBLORENZ - 25D61 information)
• No picture. No audio. (extract of circuit diagram attached)
• Builds up high voltage for a short time and then switches off. (part of circuit diagram displayed)
• No start-up (when cold).
• Horizontal jitter. Vertical jitter. (with circuit diagram extract)
• No horizontal synchronisation. (picture attached)
• PSU can not be loaded with 60W incandescent lamp.
• Vertical IC fails. (part of circuit diagram displayed) (25D61 tips)
• From a cold start line output stage transistor fails.
• Focus problem. Blurred vertically, ok horizontally after replacing microprocessor and line transformer.
• Stuck in standby; RC ineffective. Stanby LED flickers. (part of circuit diagram displayed)
• Intermittent block.
• Black bar on the right side of the screen. Similar to displacement. (part of circuit diagram displayed)
• Picture has moved approx 10cm to the left. Vertical black bar with a few coloured streaks. Colour OK. (picture attached) (SCHAUBLORENZ - 25D61 information)
• Excessive brightness. Flyback lines. (part of circuit diagram displayed) (25D61 tip from SCHAUBLORENZ)
• 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)
• At switch on, functions but with no picture. By pressing the CRT module it unblocks and the picture appears. Predominant colour depends on the pressure used.
• Horizontal stripe. in the centre.
• High voltage runs high. Flashover all over.
• Very slight flickering with a light picture. (part of circuit diagram displayed)
• Dark picture. on the right. (with circuit diagram extract)
• Cycles on/off.
• Vertical collapse. (picture attached) (SCHAUBLORENZ - 25D61 information)
• Grey picture at switch on and sound which disappears after 15 mins. Grey screen with frizzy line on the sides when pressing G2.
• Picture shifted to the left, too small and not adjustable. (picture attached)
• Reduced raster size. (extract of circuit diagram attached)
• Long picture at start up, black screen with rainbow spots.
• Poor audio.
• Loud noise. at start-up.
• At Power On standby LED switches off immediately after switching on.
• High voltage build up for short time then PSU switches off. (part of circuit diagram displayed) (service info for SCHAUBLORENZ -25D61)
• Horizontal picture position is incorrect, 5cm to the left. No picture intermittently. (part of circuit diagram displayed)
• Double picture. (25D61 SCHAUBLORENZ repair tip)
• Switches to standby when mains switch is plugged in. Switches off when using RCU. (extract of circuit diagram attached)
• Picture tearing.
• Horizontal collapse. after a while. (extract of circuit diagram attached)
• PSU fails intermittently. (+ 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.
• High voltage transistor (S2000) defective. (extract of circuit diagram attached)
• Shuts down. after start-up. (+ extract of circuit diagram)
• Vertical or horizontal picture shaking both when hot and cold. (+ extract of circuit diagram)
• White horizontal stripe about 5 cm from the bottom. Picture content bellow stripe is altered and noisy.
• Does not switch on. Fluttering noise from the loudspeakers. (+ extract of circuit diagram) (25D61 tip from SCHAUBLORENZ)
• Dark picture.
• Unstable horizontal picture.
• Does not go into TXT mode. Mixed mode possible.
• 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. (25D61 SCHAUBLORENZ repair tip)
• No vertical deflection. intermittently.
• 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.
• Hums at switch on, dies out slowly.
• Switches to protection mode. at start-up. (part of circuit diagram displayed)
• Vertical, bright stripe faintly visible in the right third of the picture.
• No raster sync in HF. Ok in scart. (picture attached)
• Black screen. Display flashes once at switch on.
• Convex picture. Defective lower linearity. (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. (with circuit diagram extract)
• After approx 20 mins colour TV switches off.
• Secondary voltages appear for 1 to 2 secs. then nothing else. Standby LED switches off. (SCHAUBLORENZ - 25D61 information)
• One side of picture is black.
• Bright picture. on the right. Dark picture. on the left. (+ extract of circuit diagram)
• Text selection is not possible, takes only Mix or full text but not both. Also various other functions are defective.
• FBT blows after a few mins. (part of circuit diagram displayed)
• Whistling HT. No start up due to incorrect HT frequency. May blow S2000 immediately. (picture attached)
• Picture with a 10cm vertical band on the right side. Negative picture behind this black band.
• Only standby LED lit. LED switches off at switch on then no function.
• 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 attached)
• Vertical and horizontal synchronisation available only after 2 mins.
• Shuts down. (+ extract of circuit diagram)
• Whenever a function is requested display lights up then switches off. (25D61 tip from SCHAUBLORENZ)
• Picture rolls. when cold. (with circuit diagram extract)
• Transistor T701 fails when appliance is switched off and on.
• Programming menu can not be accessed. (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 attached)
• Switches off when selecting a function via RC.
• No TXT.
• NICAM is missing.
• At switch on appliance pulsated then reverts to standby again.
• Attempts to start with no result. (with circuit diagram extract)
• Switches to standby (intermittently).
• EHT is heard starting up then everything stops 4 secs later.
• Centre of snowy picture is darker than edges. (+ extract of circuit diagram)
• Goes into safety mode at switch on. If FBT is unsoldered then HT is re-established. No apparent S/C in secondary of FBT. (extract of circuit diagram attached)
• 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. (25D61 tips)
• Comes on for a short time. (extract of circuit diagram attached)
• Hums at switch on. (part of circuit diagram displayed)
• Line transistor S2000AF defective at switch on from cold. (with circuit diagram extract)
• Resistor R515 becomes defective. (part of circuit diagram displayed)
• PSU is defective. 300V is present.
• Resistor R775 is defective.
• No HT output from power supply. OK in standby. (part of circuit diagram displayed)
• Line transformer starts up but no display, nothing on the screen and no sound. (picture attached)
• Motorboating noise at switch on then goes into standby. When frame IC is unsoldered TV starts up. (with circuit diagram extract)
• Left picture side is brighter, even via AV. (picture attached)
• Wavy vertical lines in the entire picture when cold. Picture jitters. (+ extract of circuit diagram)
• No start-up from standby.
• Sound channel 1 and 2 voltage level adjustment.
• Excessive HV. (picture attached) (25D61 tip from SCHAUBLORENZ)
• 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.
• Picture collapse on half of the picture.
• Noise in the speakers and no start up or display on the front panel when switching on. (picture attached)
• 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)
• White screen. Flyback lines.
• When appliance receives in Nicam stereo, the TV goes into PAL.
• Goes into PAL reception when in NICAM reception on channel 64, programme N1.
• 88 shown on LED display.
• Intermittent loss of brightness, picture is black. Can be adjusted with RC. Or vice versa, picture is too light and can be adjusted.
• Will not select text, or will only select mix or full text but not both, various other functions faulty.
• PSU chirps, at the same time bubbling and hum in loudspeakers. No functions. (extract of circuit diagram attached)
• Unusual TXT.
• Collapses at start up, then switches off.
• Poor shading of picture, dark on one side and light on the other. (part of circuit diagram displayed)
• Dark screen. on the right. (+ extract of circuit diagram)
• Defective linearity.
• Dark picture on 2/3 of screen on the left but brighter on 1/3 of screen on the right. (+ extract of circuit diagram)
• No horizontal or vertical deflection.
• Does not fully go to TXT or only blue mix TXT. (with circuit diagram extract)
• Blank raster.
• Picture is too wide. E/W distorted. (service info for SCHAUBLORENZ -25D61)
• No picture (intermittently). (SCHAUBLORENZ - 25D61 information)
• PSU starts briefly, then no more HV. (+ extract of circuit diagram)
• At switch on picture is condensed tnen enlarged. Pops loudly at approx 2 pulses per sec. Intermittent blast from speakers. (picture attached)
• Pulsating picture. (part of circuit diagram displayed)
• Picture too big. (extract of circuit diagram attached)
• 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.
• No audio (when cold).
• Ok with signal. Without signal: unstable line frequency, line stage transformer makes a loud whistling noise and T511 (scanning transistor) shorts. (picture attached) (25D61 tip from SCHAUBLORENZ)
• E/W fault. (picture attached)
• No picture. Audio OK . (picture attached)
• Appliance whistles. Sound and picture present. Picture interference (lines approx one centimeter apart over the whole of the picture).
• Power supply seems to remain in safety mode. (picture attached)
• Line BU voltage = 140V. Value of capacitor C701 (in PSU) illegible. Still no display if line BU disconnected. (extract of circuit diagram attached)
• Poor PSU start-up or BU defective. (part of circuit diagram displayed)
• No colour.
• Distorted picture. on the right. (+ extract of circuit diagram)
• Power supply hiccups.
• Stuck in standby. (SCHAUBLORENZ - 25D61 information)
• No E/W correction. (part of circuit diagram displayed)
• 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. (25D61 SCHAUBLORENZ repair tip)
• Poor synchronisation. No picture. after a while.
• Blank screen with purple haze at left hand side. (+ extract of circuit diagram)
• Display flashing and rattles at switch on. (with circuit diagram extract)
• Hum bars, especially on yellow or orange background.
• No TXT (intermittently).
• E/W trapezium does not function.
• Dark picture. intermittently.
• Picture only appears about 3 mins after switch on, when appliance is cold.
• Noise in picture. Poor horizontal synchronisation.
• No start-up. (with circuit diagram extract) (25D61 tip from SCHAUBLORENZ)
• Horizontal jitter. when cold.
• Very pale picture which is shifted to the left. Voltage is correct. (with circuit diagram extract)
• Time constant switching over only occurs on memory sites 37 to 39 and AV.
• Vertical hum bars on picture, sometimes very visible and sometimes hardly at all.
• Picture shaking in a random direction. (part of circuit diagram displayed)
• Vertical IC (TDA3654) becomes hot, then fails after several hours. Picture OK. (extract of circuit diagram attached)
• Instructions on how to put appliance into Service-Mode.
• 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.
• Distorted vertical linearity. Barrel distortion. (picture attached)
• No tuning. Higher channels in band I/III/V are not received.
• Can be switched to standby only if power plug is pulled out.
• Wavy picture. at top. (+ extract of circuit diagram)
• Does not go into text mode, mix mode is not possible. (SCHAUBLORENZ - 25D61 information)
• Intermittently line tearing in the middle (approx. 20cm wide). (part of circuit diagram displayed)
• At start up the power supply starts up for 2 secs then the appliance apparently goes into safety mode. No fault on the secondary.
• Rattling noise or bubbling at start-up (when cold). (+ extract of circuit diagram)
• Does not start up each time. When it functions, whistling and modulation of picture. This gets less in time.
• Horizontal line.
• No HV.
• Eliminate safety mode of PSU.
• At the top edge of the picture an unusual stain effect appears and line tearing.
• Slightly wavy picture in the middle of the screen. (with circuit diagram extract)
• HV arcing. (picture attached)
• If switched to standby, appliance pulsates and can be heard in loudspeakers. (with circuit diagram extract)
• Operation commands are not carried out.
• Lines in picture.
• Unclear picture with Hum content.
• No picture content. Picture is greyish. (with circuit diagram extract) (service info for SCHAUBLORENZ -25D61)
• No colour (intermittently). (SCHAUBLORENZ - 25D61 information)
• No functions. Red LED does not flash.
• Faint and too dark picture. Low brightness, contrast cannot be adjusted. Colour is adjustable.
• Reduced contrast, especially on one side of the screen.
• Line frequency changes downward (squeaking, whistling).
• HV builds up briefly and then shuts down (25D61 tip from SCHAUBLORENZ)
• When TV started up, transistor (S2000AF) instantly burn out. (+ extract of circuit diagram)
• 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)
• Horizontal synchronisation fault, picture shifted towards left side. (+ 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. (+ extract of circuit diagram)
• Line BU is abnormally hot.
• No tuning.
• PSU doesn't start up when cold. (+ extract of circuit diagram)
• No synchronisation during the first few mins. (picture attached) (25D61 tips)
• Coloured lines (RGB test lines) in top of picture.
• LED lights up briefly then nothing more.
• Excessive vertical size. Vertical foldover at bottom.
• No start up after changing IC601. Nothing lights up on the front.
• Line transformer starts up with an amplitude of 400V blemished by many interference lines.
• Afterglow on deflection tube after switch off.
• No control and cannot be switched off when started up from standby.
• Approx 20cm wide dark area in centre of picture and line tearing.
• T501 fails repeatedly.
• Only blue light at right in picture.
• Erratic functions. (+ extract of circuit diagram)
• Low brightness. Picture too big.
• Control unit does not function. Does not switch on. (extract of circuit diagram attached) (SCHAUBLORENZ - 25D61 information)
• At switch ON, set screams. Pressing on the on/off switch gives same condition. Standby LED's off.
• White, horizontal lines at the top of the picture. Lines decrease after a while but never disappear completely.