6578A SPRCTRASTEREO9208 / NORDMENDE [TV]

• No functions. (extract of circuit diagram attached)
• Switches off by itself. constantly.
• Dark and colourless AV picture. Occasionally only interference visible. No channel display. (part of circuit diagram displayed) (6578A tips)
• Tuning drifts, patterning.
• Poor vertical linearity.
• Switches off or cannot be started up.
• No picture. (picture attached)
• Horizontal stripes at 3-4cm distance. Dark picture. Loud chirping in line transformer.
• Picture collapsed to a 5 cm horizontal line in picture centre.
• Lines flash on picture, may not affect all channels.
• Powers up with burning smell, then dead. Mains ON/OFF switch inoperative. (picture attached)
• Switches off after about 30 mins. If restarted immediately will function for a short time then switches off again.
• The stations cannot be memorized.
• Roaring audio.
• E/W fault.
• Pulsates 2 up to 3 times, otherwise no function.
• Dead, low whistling. (6578A tips)
• Occasionally loud cracking and noise in the sound, also when the volume is turned down.
• Picture is overmodulated when picture content is bright. Picture flickers intermittently black. (NORDMENDE - 6578A information)
• Occasionally picture becomes very narrow (East-West). (part of circuit diagram displayed)
• Trapezoid picture.
• Image compressed horizontally. Insufficient width approx 1cm on left and right of screen.
• The picture is intermittent and jitters.
• Vertical fault.
• Picture dark and line visible in the top part. (extract of circuit diagram attached)
• Unsteady frame scan, lines may be present.
• Flashing "PS" in display in standby. Switches off after a short while. (part of circuit diagram displayed) (service info for NORDMENDE -6578A)
• Single straight line 2 inches from top of screen. (6578A tips)
• Picture and sound are missing, raster ok. (6578A NORDMENDE repair tip)
• Blurred picture with lines and hardly visible. Very dark.
• How to store picture adjustment values.
• Dead or trips.
• After few mins of starting up, only half picture at bottom of screen. PSU chirps.
• S/C in PSU. (+ extract of circuit diagram)
• Zig Zag verticals.
• Drop out in picture.
• Switches off by itself. Knock sensitive.
• Dead. (part of circuit diagram displayed)
• All settings (colour/sound etc.) set to 0.
• Switches to standby. (+ extract of circuit diagram)
• Y is missing. (picture attached)
• Faulty TXT.
• Dark picture. after a while. (service info for NORDMENDE -6578A)
• No vertical deflection.
• No or intermittent start-up. Switches off by itself. after a few seconds.
• Irregular sound mute. (part of circuit diagram displayed)
• No RC functions.
• Picture too dark. Blooming with full contrast.
• No indication. Blue picture with flyback lines. (with circuit diagram extract) (6578A tip from NORDMENDE)
• Bright line in the lower part of the picture.
• Image position adjusts itself vertically wrong.
• Popping noise at switch on.
• Intermittent white, horizontal line in the middle of the picture, otherwise dark.
• After light spot when turning off.
• Contrast problems.
• With low brightness and contrast, the UHF range is affected by distortion up to channel 28. At maximum brightness, the picture is ok. (picture attached)
• Flickering, flaring, brightness and contrast changes in picture or white with flyback lines.
• Noise bars.
• Enter service mode.
• No picture. No audio. (picture attached)
• No vertical deflection. when cold. (+ extract of circuit diagram)
• Power supply end stage transistor TP24 (S2000AF) fails after approx 15 mins. (extract of circuit diagram attached)
• Versucht 3 times to start up, then remains off.
• No function. Appliance fails very quickly twice. (extract of circuit diagram attached)
• Does not switch to standby.
• Noise in audio. at low volume.
• No TXT.
• The PSU collapses when the load is changed.
• Distorted field linearity. (picture attached)
• No start-up. Standby LED flashes .
• No blue in the scale of colours. Grey wedge OK. A picture recorded via scart on an external appliance is in order. (+ extract of circuit diagram)
• Black screen. after a few minutes.
• Picture is shifted. Linearity fault. (6578A tip from NORDMENDE)
• Loud noise or crackling in the speaker during stereo transmissions.
• Intermittent serrated vertical edges in picture.
• Pulsates 2-3 times and switches off.
• Immediate S/C. Brief HT, then standby. (part of circuit diagram displayed)
• Height drifts.
• Snow in picture. Noise in audio. after a few minutes.
• No start-up from standby. PSU ticking. at start-up. (extract of circuit diagram attached)
• Failure to start up. Standby LED flashes at about 1Hz when appliance switched on at mains. (extract of circuit diagram attached)
• Focus problems.
• Dancing white horizontal lines on a stripe which is approx 10cm wide. Dark picture. (extract of circuit diagram attached) (service info for NORDMENDE -6578A)
• No picture on lower half of screen. Top half picture OK.
• No start-up (intermittently).
• Appliance does not start up intermittently, or attempts to start up 3 times.
• Moire pattern.
• No channel search and no band switching possible.
• Occasionally IF fault. (picture attached) (service info for NORDMENDE -6578A)
• No function. Faint whistle.
• Wide dark stripes on left side of picture.
• White stripes on the top of picture, which spin. After approx. 5 seconds picture becomes dark.
• Picture visible in 1" strip at left hand side of screen, rest blanked.
• Intermittently appliance switches off, one or two times per day. (part of circuit diagram displayed)
• No start-up. (part of circuit diagram displayed)
• Picture is disturbed. Vertical lines are wavy. Picture improves when appliance is warm.
• Vertical collapse. (picture attached)
• Does not receive any channel. Everything OK via SCART.
• No function. Trips three times. (extract of circuit diagram attached)
• White screen. Flyback lines.
• Vertical roll.
• Goes back to standby after approx. 5 minutes and then can be switched on again via the remote control. After a while the appliance switches off again and the situation repeats. (with circuit diagram extract)
• Blue picture. Flyback lines. No display. (extract of circuit diagram attached)
• Poor picture contrast, picture can hardly be seen. Becomes a little bit better with more brightness. (extract of circuit diagram attached)
• Random clicks with Nicam sound.
• Picture is dim and faint.
• No picture. Audio OK .
• The PSU pulsates very faintly three times a second. Power processor, quartz, LOPT and BUs have already been replaced unsuccessfully. Mains transformer and flyback transformer have been completely resoldered.
• Power supply pulsates 3 times, then no further function.
• One colour missing.
• Horizontal bright stripe in the picture. (part of circuit diagram displayed)
• Switches on 3x for a short time, then goes to protective circuit.
• Poor audio. Noise in audio. (with circuit diagram extract)
• Line tearing.
• Intermittently image and sound disappear. Then only dark flickering. knocking makes screen completely dark. Image conitues appearing if brightness key is pressed. Black/ white only. Image and sound normal again, also if key COLOUR is pressed.
• No picture and no sound. The mains relay does not pull in.
• Channels cannot be switched over. Channel display stops on channel 5. (6578A NORDMENDE repair tip)
• No HV.
• Dark picture without colour. AV picture visible, without colour, dark and only intermittently visible picture noise. (NORDMENDE - 6578A information)
• Ballooning effect. (6578A NORDMENDE repair tip)
• Starts up three times then switches off. Protection mode activated. (with circuit diagram extract)
• Colour flickers, Picture I ok, picture III cannot be adjusted. (part of circuit diagram displayed)
• Snow in picture. intermittently. (picture attached)
• The top half of the picture is rainbow coloured and cannot be adjusted.
• When the appliance has been on for approx. 10 minutes it quits and then comes on again on channel 1. This reoccurs in quick succession and then stays off completely after the third time. (+ extract of circuit diagram)
• Appliance has drop out. (picture attached)
• Switches to protection mode. at start-up.
• Black and white picture on channels C46 to C51.
• No luminance but colour is present. No signal on TR47, but 12V is present. (+ extract of circuit diagram)
• Functions only after several attempts. (6578A tip from NORDMENDE)
• After switching over station has disappeared. After switching off and on again station returns.
• No reception. in VHF.
• Picture interference plus noise on sound.
• Pincushion distortion. (6578A NORDMENDE repair tip)
• No new channels can be adjusted, no reception but old channels however are stored. (service info for NORDMENDE -6578A)
• No OSD. No TXT.
• Erratic convergence values in the top third of the picture. (NORDMENDE - 6578A information)
• No light during max. contrast and brightness. Faint picture. Picture present via scart. (with circuit diagram extract)
• Jagged picture vertically.
• Incorrect picture size.
• No channels visible. Dark picture, without colour. AV picture visible, without colour, dark and intermittently only picture noise.
• Horizontal collapse. (picture attached)
• Horizontal picture amplitude cannot be adjusted. E/W is defective. (service info for NORDMENDE -6578A)
• Bright picture. Stripes in picture.
• Slow start-up.
• No picture, no sound. No stations are found during station search. (extract of circuit diagram attached)
• Sound fails.
• No picture. No audio (intermittently). (picture attached)
• Appliance switches briefly on three times and switches to protection mode.
• Blank screen (no field scan) and smell of overheating. (+ extract of circuit diagram)
• Horizontal linearity fault.
• Poor, noisy stereo sound. Sounds distorted. Mono OK.
• After some time, switches off and then sometimes switches on again by itself. Dragging sound. Slight frame cramping. (+ extract of circuit diagram) (6578A tip from NORDMENDE)
• Line output transistor fails repeatedly.
• Intermittently dead. (with circuit diagram extract)
• Only 7 to 10 raster lines in centre of picture. Lines are moving and are not close together (+ extract of circuit diagram)
• No tuning. in UHF. VHF OK . (picture attached)
• No horizontal synchronisation.
• Dark picture. on upper half screen. (with circuit diagram extract) (NORDMENDE - 6578A information)
• Visible television picture in TXT (display shows lines).
• Battery dead.
• Very short, faint crackle at switch on from standby
• No E/W correction.
• Occasionally the East/West scanning fails.
• Brightness fault.
• Horizontal output stage transistor fails repeatedly after few days/weeks without any apparent reason.
• Picture appears only after several restarts or after operating picture search. (NORDMENDE - 6578A information)
• No audio. intermittently. Noise in audio. Knock sensitive.
• Horizontal stripe.
• No synchronisation.
• Switch on condition of the primary power supply.