7522U SPECTRASTEREO5205 / NORDMENDE [TV]

• Switches to standby. (picture attached)
• No start-up (intermittently). (service info for NORDMENDE -7522U)
• Loud noise or crackling in the speaker during stereo transmissions.
• No start-up from standby. PSU ticking. at start-up. (extract of circuit diagram attached)
• How to store picture adjustment values.
• No picture on lower half of screen. Top half picture OK.
• The picture is intermittent and jitters.
• Picture appears only after several restarts or after operating picture search.
• One colour missing.
• Ballooning effect.
• Dead, low whistling.
• Power supply end stage transistor TP24 (S2000AF) fails after approx 15 mins. (part of circuit diagram displayed)
• Height drifts.
• No luminance but colour is present. No signal on TR47, but 12V is present. (picture attached)
• Picture too dark. Blooming with full contrast. (NORDMENDE - 7522U information)
• 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 attached)
• Bright picture. Stripes in picture.
• Picture is disturbed. Vertical lines are wavy. Picture improves when appliance is warm.
• Horizontal picture amplitude cannot be adjusted. E/W is defective.
• Does not receive any channel. Everything OK via SCART.
• Horizontal output stage transistor fails repeatedly after few days/weeks without any apparent reason.
• No function. Faint whistle.
• No picture, no sound. No stations are found during station search. (+ extract of circuit diagram)
• Dead or trips.
• No new channels can be adjusted, no reception but old channels however are stored.
• Noise bars.
• No function. Appliance fails very quickly twice. (+ extract of circuit diagram)
• Contrast problems.
• Incorrect picture size.
• Horizontal bright stripe in the picture. (part of circuit diagram displayed) (7522U NORDMENDE repair tip)
• No channel search and no band switching possible.
• Switches on 3x for a short time, then goes to protective circuit. (7522U NORDMENDE repair tip)
• Picture is shifted. Linearity fault.
• Appliance switches briefly on three times and switches to protection mode.
• White screen. Flyback lines.
• Picture dark and line visible in the top part. (part of circuit diagram displayed)
• Y is missing. (+ extract of circuit diagram)
• Horizontal stripe.
• Picture collapsed to a 5 cm horizontal line in picture centre.
• Occasionally loud cracking and noise in the sound, also when the volume is turned down.
• Flickering, flaring, brightness and contrast changes in picture or white with flyback lines.
• All settings (colour/sound etc.) set to 0.
• Dark picture without colour. AV picture visible, without colour, dark and only intermittently visible picture noise.
• Switches off after about 30 mins. If restarted immediately will function for a short time then switches off again.
• Occasionally the East/West scanning fails.
• Flashing "PS" in display in standby. Switches off after a short while. (picture attached)
• Intermittent white, horizontal line in the middle of the picture, otherwise dark.
• The top half of the picture is rainbow coloured and cannot be adjusted.
• No tuning. in UHF. VHF OK . (+ extract of circuit diagram) (7522U tip from NORDMENDE)
• 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.
• No synchronisation.
• Blank screen (no field scan) and smell of overheating. (+ extract of circuit diagram)
• Horizontal linearity fault.
• Vertical fault.
• Focus problems.
• Switches off by itself. Knock sensitive.
• 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.
• After some time, switches off and then sometimes switches on again by itself. Dragging sound. Slight frame cramping. (picture attached) (service info for NORDMENDE -7522U)
• Black and white picture on channels C46 to C51.
• No vertical deflection. when cold. (with circuit diagram extract)
• Dark picture. after a while. (NORDMENDE - 7522U information)
• Horizontal collapse. (with circuit diagram extract)
• After switching over station has disappeared. After switching off and on again station returns.
• Versucht 3 times to start up, then remains off. (service info for NORDMENDE -7522U)
• No picture and no sound. The mains relay does not pull in.
• Switches off or cannot be started up.
• Switch on condition of the primary power supply.
• Immediate S/C. Brief HT, then standby. (extract of circuit diagram attached)
• Wide dark stripes on left side of picture.
• Channels cannot be switched over. Channel display stops on channel 5.
• Appliance does not start up intermittently, or attempts to start up 3 times. (NORDMENDE - 7522U information)
• Drop out in picture.
• Appliance has drop out. (part of circuit diagram displayed) (7522U tip from NORDMENDE)
• No indication. Blue picture with flyback lines. (part of circuit diagram displayed)
• Erratic convergence values in the top third of the picture.
• Random clicks with Nicam sound.
• Moire pattern.
• S/C in PSU. (picture attached)
• Zig Zag verticals.
• Distorted field linearity. (part of circuit diagram displayed)
• Pulsates 2 up to 3 times, otherwise no function.
• No or intermittent start-up. Switches off by itself. after a few seconds. (service info for NORDMENDE -7522U)
• No picture. (with circuit diagram extract) (7522U tips)
• Snow in picture. intermittently. (picture attached)
• Dark and colourless AV picture. Occasionally only interference visible. No channel display. (extract of circuit diagram attached)
• Battery dead. (7522U tip from NORDMENDE)
• No RC functions.
• With low brightness and contrast, the UHF range is affected by distortion up to channel 28. At maximum brightness, the picture is ok. (part of circuit diagram displayed)
• No function. Trips three times. (picture attached)
• Poor audio. Noise in audio. (picture attached)
• Pulsates 2-3 times and switches off.
• Pincushion distortion.
• After few mins of starting up, only half picture at bottom of screen. PSU chirps.
• Tuning drifts, patterning. (NORDMENDE - 7522U information)
• Jagged picture vertically.
• Vertical collapse. (part of circuit diagram displayed)
• Faulty TXT.
• Picture is overmodulated when picture content is bright. Picture flickers intermittently black.
• No functions. (+ extract of circuit diagram)
• Powers up with burning smell, then dead. Mains ON/OFF switch inoperative. (picture attached)
• Failure to start up. Standby LED flashes at about 1Hz when appliance switched on at mains. (extract of circuit diagram attached)
• No E/W correction.
• No TXT.
• Picture is dim and faint.
• No picture. No audio (intermittently). (extract of circuit diagram attached)
• No vertical deflection.
• The PSU collapses when the load is changed.
• No start-up. Standby LED flashes .
• Single straight line 2 inches from top of screen.
• No reception. in VHF.
• Poor vertical linearity.
• 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 attached)
• After light spot when turning off.
• Occasionally IF fault. (+ extract of circuit diagram)
• Switches to protection mode. at start-up.
• Noise in audio. at low volume. (7522U tip from NORDMENDE)
• Image position adjusts itself vertically wrong.
• Popping noise at switch on.
• Image compressed horizontally. Insufficient width approx 1cm on left and right of screen.
• Poor, noisy stereo sound. Sounds distorted. Mono OK.
• Colour flickers, Picture I ok, picture III cannot be adjusted. (+ extract of circuit diagram)
• Lines flash on picture, may not affect all channels.
• Black screen. after a few minutes.
• No horizontal synchronisation.
• No audio. intermittently. Noise in audio. Knock sensitive.
• No start-up. (+ extract of circuit diagram)
• Brightness fault.
• Visible television picture in TXT (display shows lines).
• No HV.
• No channels visible. Dark picture, without colour. AV picture visible, without colour, dark and intermittently only picture noise.
• Intermittently dead. (picture attached)
• No picture. No audio. (with circuit diagram extract)
• Vertical roll.
• Picture interference plus noise on sound.
• Blurred picture with lines and hardly visible. Very dark.
• Sound fails.
• Switches off by itself. constantly. (NORDMENDE - 7522U information)
• 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)
• Unsteady frame scan, lines may be present.
• Trapezoid picture. (7522U tip from NORDMENDE)
• Blue picture. Flyback lines. No display. (extract of circuit diagram attached)
• The stations cannot be memorized.
• Horizontal stripes at 3-4cm distance. Dark picture. Loud chirping in line transformer.
• Irregular sound mute. (part of circuit diagram displayed)
• Picture visible in 1" strip at left hand side of screen, rest blanked.
• Intermittent serrated vertical edges in picture.
• No picture. Audio OK .
• Dead. (picture attached)
• Line output transistor fails repeatedly.
• Bright line in the lower part of the picture.
• Poor picture contrast, picture can hardly be seen. Becomes a little bit better with more brightness. (extract of circuit diagram attached)
• Snow in picture. Noise in audio. after a few minutes.
• Intermittently appliance switches off, one or two times per day. (with circuit diagram extract)
• Picture and sound are missing, raster ok.
• Functions only after several attempts.
• Only 7 to 10 raster lines in centre of picture. Lines are moving and are not close together (extract of circuit diagram attached)
• Dancing white horizontal lines on a stripe which is approx 10cm wide. Dark picture. (extract of circuit diagram attached)
• No OSD. No TXT.
• Enter service mode.
• E/W fault.
• Slow start-up.
• Starts up three times then switches off. Protection mode activated. (picture attached)
• No light during max. contrast and brightness. Faint picture. Picture present via scart. (part of circuit diagram displayed)
• Line tearing.
• Very short, faint crackle at switch on from standby
• Roaring audio.
• Power supply pulsates 3 times, then no further function.
• Does not switch to standby.
• Dark picture. on upper half screen. (extract of circuit diagram attached)
• Occasionally picture becomes very narrow (East-West). (+ extract of circuit diagram)
• White stripes on the top of picture, which spin. After approx. 5 seconds picture becomes dark.