6570A COLORSTEREO5245 / NORDMENDE [TV]

• Does not receive any channel. Everything OK via SCART.
• No OSD. No TXT.
• Immediate S/C. Brief HT, then standby. (extract of circuit diagram attached)
• Contrast problems. (NORDMENDE - 6570A information)
• Snow in picture. intermittently. (picture attached)
• Does not switch to standby.
• Black and white picture on channels C46 to C51.
• After some time, switches off and then sometimes switches on again by itself. Dragging sound. Slight frame cramping. (+ extract of circuit diagram)
• Dark picture. on upper half screen. (with circuit diagram extract)
• No picture and no sound. The mains relay does not pull in. (6570A NORDMENDE repair tip)
• No E/W correction.
• Image position adjusts itself vertically wrong.
• One colour missing.
• No luminance but colour is present. No signal on TR47, but 12V is present. (picture attached)
• Bright picture. Stripes in picture.
• No or intermittent start-up. Switches off by itself. after a few seconds.
• Battery dead. (6570A tip from NORDMENDE)
• Picture is overmodulated when picture content is bright. Picture flickers intermittently black.
• The picture is intermittent and jitters.
• Drop out in picture.
• Versucht 3 times to start up, then remains off.
• Picture interference plus noise on sound.
• Picture too dark. Blooming with full contrast.
• Faulty TXT.
• Horizontal picture amplitude cannot be adjusted. E/W is defective.
• Blue picture. Flyback lines. No display. (+ extract of circuit diagram)
• 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)
• Random clicks with Nicam sound.
• Popping noise at switch on.
• Blank screen (no field scan) and smell of overheating. (+ extract of circuit diagram) (6570A NORDMENDE repair tip)
• Flashing "PS" in display in standby. Switches off after a short while. (+ extract of circuit diagram)
• Switch on condition of the primary power supply.
• Intermittent white, horizontal line in the middle of the picture, otherwise dark.
• No picture. No audio. (with circuit diagram extract)
• Incorrect picture size.
• With low brightness and contrast, the UHF range is affected by distortion up to channel 28. At maximum brightness, the picture is ok. (+ extract of circuit diagram)
• Switches off or cannot be started up. (6570A tips)
• No picture, no sound. No stations are found during station search. (with circuit diagram extract)
• No vertical deflection. when cold. (picture attached) (6570A tips)
• Colour flickers, Picture I ok, picture III cannot be adjusted. (extract of circuit diagram attached)
• Poor audio. Noise in audio. (+ extract of circuit diagram) (NORDMENDE - 6570A information)
• Bright line in the lower part of the picture.
• Picture is shifted. Linearity fault.
• 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.
• 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. (+ extract of circuit diagram)
• Dark picture without colour. AV picture visible, without colour, dark and only intermittently visible picture noise.
• Dead. (with circuit diagram extract)
• Line tearing.
• After switching over station has disappeared. After switching off and on again station returns. (6570A tip from NORDMENDE)
• Y is missing. (picture attached) (6570A NORDMENDE repair tip)
• Horizontal collapse. (picture attached)
• Horizontal bright stripe in the picture. (part of circuit diagram displayed)
• Occasionally IF fault. (with circuit diagram extract)
• Pincushion distortion. (service info for NORDMENDE -6570A)
• Switches off by itself. constantly.
• How to store picture adjustment values.
• No start-up. Standby LED flashes .
• The PSU collapses when the load is changed. (6570A tip from NORDMENDE)
• Unsteady frame scan, lines may be present.
• Appliance switches briefly on three times and switches to protection mode. (NORDMENDE - 6570A information)
• Switches off after about 30 mins. If restarted immediately will function for a short time then switches off again.
• No vertical deflection.
• Intermittent serrated vertical edges in picture.
• Horizontal output stage transistor fails repeatedly after few days/weeks without any apparent reason.
• No function. Faint whistle. (6570A tips)
• All settings (colour/sound etc.) set to 0.
• No start-up. (part of circuit diagram displayed)
• Dead, low whistling.
• Focus problems.
• Noise in audio. at low volume.
• Horizontal stripes at 3-4cm distance. Dark picture. Loud chirping in line transformer.
• No start-up (intermittently). (6570A NORDMENDE repair tip)
• Switches on 3x for a short time, then goes to protective circuit.
• Tuning drifts, patterning.
• Picture visible in 1" strip at left hand side of screen, rest blanked.
• No start-up from standby. PSU ticking. at start-up. (extract of circuit diagram attached)
• Pulsates 2-3 times and switches off. (6570A NORDMENDE repair tip)
• No audio. intermittently. Noise in audio. Knock sensitive.
• No picture. (picture attached)
• No channels visible. Dark picture, without colour. AV picture visible, without colour, dark and intermittently only picture noise.
• Noise bars.
• No horizontal synchronisation.
• Blurred picture with lines and hardly visible. Very dark.
• Pulsates 2 up to 3 times, otherwise no function.
• 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)
• Very short, faint crackle at switch on from standby
• Vertical roll.
• No picture. No audio (intermittently). (part of circuit diagram displayed)
• Switches to protection mode. at start-up.
• Enter service mode.
• Horizontal linearity fault.
• Picture appears only after several restarts or after operating picture search.
• Occasionally the East/West scanning fails.
• No new channels can be adjusted, no reception but old channels however are stored.
• Distorted field linearity. (with circuit diagram extract)
• Switches off by itself. Knock sensitive.
• Jagged picture vertically.
• No picture. Audio OK .
• Channels cannot be switched over. Channel display stops on channel 5.
• After few mins of starting up, only half picture at bottom of screen. PSU chirps.
• Poor picture contrast, picture can hardly be seen. Becomes a little bit better with more brightness. (extract of circuit diagram attached)
• Single straight line 2 inches from top of screen.
• 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.
• Sound fails. (NORDMENDE - 6570A information)
• Picture and sound are missing, raster ok.
• Appliance does not start up intermittently, or attempts to start up 3 times.
• E/W fault.
• Horizontal stripe.
• No HV.
• S/C in PSU. (+ extract of circuit diagram)
• White stripes on the top of picture, which spin. After approx. 5 seconds picture becomes dark. (6570A tip from NORDMENDE)
• The top half of the picture is rainbow coloured and cannot be adjusted.
• Appliance has drop out. (+ extract of circuit diagram)
• Moire pattern.
• No synchronisation.
• Trapezoid picture.
• No TXT.
• Powers up with burning smell, then dead. Mains ON/OFF switch inoperative. (part of circuit diagram displayed)
• Picture is disturbed. Vertical lines are wavy. Picture improves when appliance is warm.
• No RC functions.
• No tuning. in UHF. VHF OK . (part of circuit diagram displayed)
• Loud noise or crackling in the speaker during stereo transmissions.
• Failure to start up. Standby LED flashes at about 1Hz when appliance switched on at mains. (picture attached)
• Power supply end stage transistor TP24 (S2000AF) fails after approx 15 mins. (with circuit diagram extract)
• The stations cannot be memorized.
• Line output transistor fails repeatedly.
• Occasionally picture becomes very narrow (East-West). (+ extract of circuit diagram)
• Picture is dim and faint.
• Switches to standby. (picture attached)
• No function. Appliance fails very quickly twice. (+ extract of circuit diagram)
• No reception. in VHF.
• Dark and colourless AV picture. Occasionally only interference visible. No channel display. (with circuit diagram extract)
• Only 7 to 10 raster lines in centre of picture. Lines are moving and are not close together (picture attached) (6570A tip from NORDMENDE)
• No function. Trips three times. (part of circuit diagram displayed)
• Wide dark stripes on left side of picture.
• Erratic convergence values in the top third of the picture.
• Dark picture. after a while.
• Height drifts. (service info for NORDMENDE -6570A)
• Image compressed horizontally. Insufficient width approx 1cm on left and right of screen.
• No light during max. contrast and brightness. Faint picture. Picture present via scart. (+ extract of circuit diagram)
• Black screen. after a few minutes. (6570A NORDMENDE repair tip)
• Lines flash on picture, may not affect all channels.
• Picture dark and line visible in the top part. (with circuit diagram extract)
• No channel search and no band switching possible.
• Vertical collapse. (with circuit diagram extract)
• No indication. Blue picture with flyback lines. (+ extract of circuit diagram)
• Snow in picture. Noise in audio. after a few minutes.
• No functions. (part of circuit diagram displayed)
• Visible television picture in TXT (display shows lines).
• No picture on lower half of screen. Top half picture OK.
• Brightness fault.
• Slow start-up.
• Roaring audio.
• Functions only after several attempts.
• Intermittently appliance switches off, one or two times per day. (picture attached)
• Power supply pulsates 3 times, then no further function.
• Irregular sound mute. (part of circuit diagram displayed)
• Intermittently dead. (part of circuit diagram displayed)
• Dead or trips.
• Ballooning effect.
• Zig Zag verticals.
• Vertical fault. (service info for NORDMENDE -6570A)
• Flickering, flaring, brightness and contrast changes in picture or white with flyback lines.
• Starts up three times then switches off. Protection mode activated. (+ extract of circuit diagram)
• After light spot when turning off.
• Poor, noisy stereo sound. Sounds distorted. Mono OK.
• Occasionally loud cracking and noise in the sound, also when the volume is turned down.
• Poor vertical linearity.
• White screen. Flyback lines.
• Dancing white horizontal lines on a stripe which is approx 10cm wide. Dark picture. (extract of circuit diagram attached)
• Picture collapsed to a 5 cm horizontal line in picture centre.