7532 VC7732 / NORDMENDE [TV]

• Switches to protection mode. at start-up.
• Poor picture contrast, picture can hardly be seen. Becomes a little bit better with more brightness. (picture attached)
• Occasionally the East/West scanning fails.
• Occasionally IF fault. (with circuit diagram extract) (7532 tips)
• Flickering, flaring, brightness and contrast changes in picture or white with flyback lines.
• Appliance switches briefly on three times and switches to protection mode.
• Flashing "PS" in display in standby. Switches off after a short while. (extract of circuit diagram attached)
• Intermittent white, horizontal line in the middle of the picture, otherwise dark.
• Power supply pulsates 3 times, then no further function. (NORDMENDE - 7532 information)
• Trapezoid picture.
• Horizontal picture amplitude cannot be adjusted. E/W is defective.
• After few mins of starting up, only half picture at bottom of screen. PSU chirps.
• White stripes on the top of picture, which spin. After approx. 5 seconds picture becomes dark.
• Faulty TXT.
• Incorrect picture size.
• Contrast problems.
• Jagged picture vertically.
• Dead. (extract of circuit diagram attached)
• Does not receive any channel. Everything OK via SCART.
• Picture dark and line visible in the top part. (+ extract of circuit diagram)
• Focus problems.
• Horizontal linearity fault.
• No channel search and no band switching possible.
• No synchronisation. (7532 tips)
• No new channels can be adjusted, no reception but old channels however are stored.
• Distorted field linearity. (extract of circuit diagram attached)
• No vertical deflection.
• Snow in picture. intermittently. (picture attached)
• No start-up. (part of circuit diagram displayed)
• 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.
• Pincushion distortion.
• No start-up. Standby LED flashes .
• 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.
• Switches on 3x for a short time, then goes to protective circuit.
• Switches to standby. (+ extract of circuit diagram)
• Height drifts.
• How to store picture adjustment values.
• Drop out in picture. (7532 tip from NORDMENDE)
• No luminance but colour is present. No signal on TR47, but 12V is present. (picture attached)
• Appliance does not start up intermittently, or attempts to start up 3 times.
• Pulsates 2-3 times and switches off.
• The top half of the picture is rainbow coloured and cannot be adjusted.
• Occasionally picture becomes very narrow (East-West). (part of circuit diagram displayed)
• Moire pattern.
• Horizontal stripes at 3-4cm distance. Dark picture. Loud chirping in line transformer.
• Irregular sound mute. (with circuit diagram extract) (7532 tip from NORDMENDE)
• Vertical collapse. (+ extract of circuit diagram)
• Starts up three times then switches off. Protection mode activated. (with circuit diagram extract)
• Immediate S/C. Brief HT, then standby. (part of circuit diagram displayed)
• E/W fault.
• Picture and sound are missing, raster ok.
• No indication. Blue picture with flyback lines. (+ extract of circuit diagram)
• Erratic convergence values in the top third of the picture.
• No TXT.
• Noise bars.
• No reception. in VHF.
• After switching over station has disappeared. After switching off and on again station returns.
• Very short, faint crackle at switch on from standby (7532 tip from NORDMENDE)
• Switches off by itself. Knock sensitive.
• Ballooning effect. (service info for NORDMENDE -7532)
• No or intermittent start-up. Switches off by itself. after a few seconds.
• Horizontal stripe.
• Intermittent serrated vertical edges in picture.
• Picture too dark. Blooming with full contrast.
• Tuning drifts, patterning.
• No picture and no sound. The mains relay does not pull in. (NORDMENDE - 7532 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. (picture attached) (7532 tips)
• Blank screen (no field scan) and smell of overheating. (extract of circuit diagram attached)
• No tuning. in UHF. VHF OK . (picture attached)
• Picture is dim and faint.
• Visible television picture in TXT (display shows lines). (service info for NORDMENDE -7532)
• Intermittently dead. (extract of circuit diagram attached) (NORDMENDE - 7532 information)
• No OSD. No TXT.
• Wide dark stripes on left side of picture.
• Switches off or cannot be started up.
• Black and white picture on channels C46 to C51.
• Functions only after several attempts. (7532 tip from NORDMENDE)
• Noise in audio. at low volume.
• The stations cannot be memorized. (7532 NORDMENDE repair tip)
• Poor, noisy stereo sound. Sounds distorted. Mono OK.
• Unsteady frame scan, lines may be present.
• Dark picture. after a while.
• Intermittently appliance switches off, one or two times per day. (picture attached)
• Power supply end stage transistor TP24 (S2000AF) fails after approx 15 mins. (with circuit diagram extract)
• Dancing white horizontal lines on a stripe which is approx 10cm wide. Dark picture. (extract of circuit diagram attached)
• Enter service mode.
• The PSU collapses when the load is changed. (7532 tip from NORDMENDE)
• White screen. Flyback lines.
• Battery dead.
• Bright picture. Stripes in picture.
• Picture collapsed to a 5 cm horizontal line in picture centre.
• Dead or trips.
• After some time, switches off and then sometimes switches on again by itself. Dragging sound. Slight frame cramping. (with circuit diagram extract)
• Line tearing.
• Picture is disturbed. Vertical lines are wavy. Picture improves when appliance is warm. (service info for NORDMENDE -7532)
• No RC functions. (service info for NORDMENDE -7532)
• Picture is shifted. Linearity fault.
• Switches off by itself. constantly.
• No blue in the scale of colours. Grey wedge OK. A picture recorded via scart on an external appliance is in order. (with circuit diagram extract)
• After light spot when turning off.
• Sound fails.
• Y is missing. (+ extract of circuit diagram)
• 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 attached)
• Zig Zag verticals. (7532 NORDMENDE repair tip)
• Brightness fault.
• No channels visible. Dark picture, without colour. AV picture visible, without colour, dark and intermittently only picture noise.
• Image position adjusts itself vertically wrong.
• Random clicks with Nicam sound. (7532 tips)
• Does not switch to standby.
• Popping noise at switch on.
• Colour flickers, Picture I ok, picture III cannot be adjusted. (+ extract of circuit diagram)
• Appliance has drop out. (part of circuit diagram displayed) (7532 tip from NORDMENDE)
• No picture. Audio OK .
• Picture is overmodulated when picture content is bright. Picture flickers intermittently black.
• Single straight line 2 inches from top of screen.
• Vertical fault.
• Only 7 to 10 raster lines in centre of picture. Lines are moving and are not close together (extract of circuit diagram attached)
• Poor vertical linearity.
• Line output transistor fails repeatedly.
• No function. Appliance fails very quickly twice. (part of circuit diagram displayed)
• Dark and colourless AV picture. Occasionally only interference visible. No channel display. (+ extract of circuit diagram)
• Roaring audio.
• Bright line in the lower part of the picture.
• No audio. intermittently. Noise in audio. Knock sensitive.
• No functions. (part of circuit diagram displayed)
• No E/W correction.
• No picture on lower half of screen. Top half picture OK. (NORDMENDE - 7532 information)
• Loud noise or crackling in the speaker during stereo transmissions.
• No picture, no sound. No stations are found during station search. (extract of circuit diagram attached)
• S/C in PSU. (part of circuit diagram displayed) (7532 tip from NORDMENDE)
• No light during max. contrast and brightness. Faint picture. Picture present via scart. (picture attached)
• No function. Trips three times. (extract of circuit diagram attached)
• No horizontal synchronisation. (NORDMENDE - 7532 information)
• Versucht 3 times to start up, then remains off.
• Horizontal bright stripe in the picture. (+ extract of circuit diagram)
• Blue picture. Flyback lines. No display. (with circuit diagram extract)
• Channels cannot be switched over. Channel display stops on channel 5.
• Horizontal collapse. (+ extract of circuit diagram)
• Black screen. after a few minutes.
• Snow in picture. Noise in audio. after a few minutes.
• No start-up (intermittently).
• No start-up from standby. PSU ticking. at start-up. (picture attached)
• The picture is intermittent and jitters.
• Failure to start up. Standby LED flashes at about 1Hz when appliance switched on at mains. (+ extract of circuit diagram)
• Vertical roll.
• 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. (part of circuit diagram displayed)
• Blurred picture with lines and hardly visible. Very dark.
• Poor audio. Noise in audio. (extract of circuit diagram attached) (NORDMENDE - 7532 information)
• No vertical deflection. when cold. (part of circuit diagram displayed)
• Image compressed horizontally. Insufficient width approx 1cm on left and right of screen.
• Powers up with burning smell, then dead. Mains ON/OFF switch inoperative. (with circuit diagram extract)
• Horizontal output stage transistor fails repeatedly after few days/weeks without any apparent reason.
• No HV.
• Lines flash on picture, may not affect all channels.
• One colour missing.
• Picture visible in 1" strip at left hand side of screen, rest blanked.
• Slow start-up.
• Picture appears only after several restarts or after operating picture search. (7532 tips)
• All settings (colour/sound etc.) set to 0.
• Picture interference plus noise on sound.
• Dead, low whistling.
• Dark picture without colour. AV picture visible, without colour, dark and only intermittently visible picture noise.
• Dark picture. on upper half screen. (with circuit diagram extract)
• Switches off after about 30 mins. If restarted immediately will function for a short time then switches off again.
• Occasionally loud cracking and noise in the sound, also when the volume is turned down.
• No function. Faint whistle.
• No picture. No audio (intermittently). (picture attached)
• Switch on condition of the primary power supply.
• Pulsates 2 up to 3 times, otherwise no function.
• No picture. (extract of circuit diagram attached)
• No picture. No audio. (picture attached) (7532 NORDMENDE repair tip)