72PRESTIGE / NORDMENDE [TV]

• PSU fails at switch off. (part of circuit diagram displayed)
• Only horizontal line in picture on top. (picture attached)
• No start-up. Standby LED lit . (extract of circuit diagram attached)
• No sound after a bang. (picture attached)
• Tripping on scene change. (picture attached)
• Shuts down. after a few minutes. Standby LED lit . (with circuit diagram extract)
• Switches off depending on the beam current then goes on again automatically. (picture attached)
• No RC functions.
• Vertical lines jitter. Stronger in the top third of the picture. (+ extract of circuit diagram)
• Picture shifted vertically. at bottom. (picture attached)
• Intermittent E/W failure. Instead of pincushion effect , angular edges. (extract of circuit diagram attached)
• Sound appears only 5 secs after programme change. RC function is delayed. (+ extract of circuit diagram)
• Intermittently appliance does not switch on or switches off automatically. (+ extract of circuit diagram)
• OSD appears automatically after 5 mins.
• Power supply does not oscillate. Channel display remains. (part of circuit diagram displayed)
• Programs switch over delayed and sound comes delayed at switch over.
• Moire effect runs through vertically via IR function. (part of circuit diagram displayed)
• No or poor start up from cold. Pulsates 3 times. (part of circuit diagram displayed)
• Bottom edge of picture curls up. (picture attached)
• North/South-geometry can not be adjusted correctly. (72PRESTIGE NORDMENDE repair tip)
• Stuck in standby. (+ extract of circuit diagram)
• Fuses in power supply blow every 3 to 4 weeks.
• Excessive vertical size. (extract of circuit diagram attached)
• Switches to protection mode. after start-up. (extract of circuit diagram attached)
• No operation by front control on appliance or RC at videotext or after warming n. If power switch is switched off and on again, appliance is OK.
• White screen. Flyback lines. (with circuit diagram extract)
• Before fault finding, if set in standby or half dead ALWAYS check all h.t and l.t rails. They must not be lower than the manual states. (72PRESTIGE NORDMENDE repair tip)
• Occasionally protective circuit does not react. (extract of circuit diagram attached)
• Noise, no picture at switch on. Picture of preset channel OK when other channel location is selected and then switched back to previous location. (picture attached)
• No vertical deflection. (with circuit diagram extract)
• LED flashes in every sec.
• Station memory is lost. All program sites are on channel 02. (with circuit diagram extract)
• Black screen. Flyback lines. (with circuit diagram extract)
• Crooked picture in upper part of screen. Sometimes on specific channels only
• Horizontal sinusoidal stripes. Sound available. (extract of circuit diagram attached)
• Shuts down. after a while. (part of circuit diagram displayed)
• Sinusoidal horizontal stripes in the centre. Sound available. (picture attached)
• RP42 burns again immediately after replacing it.
• No start-up. Standby LED flashes . (with circuit diagram extract)
• No sound. The picture has moved to the left and cannot be adjusted. Text runs through or is distorted. The clock cannot be superimposed. (extract of circuit diagram attached)
• Sound cracks on all programs depending on picture content. (Intercarrier hum). (+ extract of circuit diagram)
• Starts up, line output stage tries to start. Noise from the chassis. Picture appears after approx. 5 mins.
• No TXT.
• Dark picture. (+ extract of circuit diagram)
• Shuts down (after start-up). (part of circuit diagram displayed)
• Interference lines or only snow on all channels.
• No functions. LED blinks . (with circuit diagram extract)
• Nasal sound that becomes normal after 5 minutes approx.
• Picture size varies with picture content. (extract of circuit diagram attached)
• Crackling audio. via speakers (intermittently).
• TP24 has drop outs intermittently. (extract of circuit diagram attached) (NORDMENDE - 72PRESTIGE information)
• High voltage is too much. Picture width and height are dependent on beam current. (with circuit diagram extract)
• PSU pumps 3 times in 3 secs after switch on. (+ extract of circuit diagram)
• No start-up. LED blinks . (with circuit diagram extract) (service info for NORDMENDE -72PRESTIGE)
• Programme memory is lost.
• When switched on, HV OK for short time then appliance fails three times. (extract of circuit diagram attached)
• No SMPS. Programme indication lit. (picture attached)
• Vertical line. in the centre.
• Picture distorted on top, lines have shifted, crackle in sound. (part of circuit diagram displayed)
• Control unit processor does not work correctly. (+ extract of circuit diagram)
• Switches to standby. (part of circuit diagram displayed)
• After switching off the appliance with the remote control it can only be switched on again from the control panel. Remote control, IR reception and processor are new. (with circuit diagram extract)
• S2000 fails immediately after switch on. (picture attached)
• Power supply BU is defective. After fitting the repair set the lines collapse if the channels are switched over. Channel display remains, transformer chirps a bit louder than usual. (with circuit diagram extract) (72PRESTIGE tip from NORDMENDE)
• No STEREO. Poor audio. (extract of circuit diagram attached)
• No blue. Knock sensitive.
• No picture. (+ extract of circuit diagram)
• Intermittent faint vertical line in picture.
• Pulsates 3 times. (+ extract of circuit diagram)
• Interference lines on some VHF channels after some minutes. Intermittently picture disappears completely. (with circuit diagram extract)
• No red.
• Five horizontal lines in top of picture. Loss of picture after a while. (with circuit diagram extract)
• STEREO-MONO are displayed intermittently.
• Left loudspeaker intermittently extremely loud, intermittently no sound. If very loud, sound is not adjustable. Indicator (LED) indicates control. At knocking maybe it goes to normal volume, but error can not be caused through knocking.
• Intermittently static discharge.
• Unnatural colours in picture (for ex. insufficient red). (72PRESTIGE tip from NORDMENDE)
• The first digit of display rolls. (picture attached) (service info for NORDMENDE -72PRESTIGE)
• One colour missing. (with circuit diagram extract)
• No picture (intermittently). Audio OK . (with circuit diagram extract)
• Bright picture. at top.
• Strong carrier frequency hum. (+ extract of circuit diagram) (72PRESTIGE NORDMENDE repair tip)
• No sound, the picture is displaced to the left and cannot be adjusted. Text runs through or is distorted. The clock cannot be superimposed. (part of circuit diagram displayed)
• PSU repair tip. (with circuit diagram extract)
• Sound with noise and scratch, distorted on all channels. (+ extract of circuit diagram)
• Picture is a little compressed at the bottom of the test pattern circle. When increasing the vertical amplitude, the picture increses at the top edge and is compressed at the bottom. Circle is relatively round when cold. Picure becomes worse when warming (picture attached)
• TV cross-talk in AV operation.
• No NICAM sound after retrofit panel and modifications have been carried out.
• Cut off lines appear in the picture after some time. (picture attached)
• Comes on for a short time. (extract of circuit diagram attached)
• Switches to standby after 5 ticks in speaker. (picture attached)
• Field collapsing to a few lines from full picture then poor linearity. (picture attached)
• No synchronisation. in TXT. (picture attached) (72PRESTIGE tip from NORDMENDE)
• OSD is unstable, if no aerial is connected.
• Trips 2-4 times, then dead. (with circuit diagram extract)
• No picture after replacement of line transformer. Blurry spot at bottom of picture. (extract of circuit diagram attached)
• Lines in picture. at top (when cold). (+ extract of circuit diagram)
• No start-up (intermittently). (with circuit diagram extract)
• White discontinuous lines on left in picture at VHF-reception band I. (extract of circuit diagram attached)
• FP05 fails.
• Switches to standby after a few hours then switches on again. Picture then has colour which slowly fades. (extract of circuit diagram attached)
• Picture appears a long time after switch on. It appears with little brightness and incorrect colour. (+ extract of circuit diagram)
• Reduced vertical size. after a few minutes. (picture attached)
• Doesn't tune correctly and band 4 can't be selected. The channel numbers only reach 23. (picture attached)
• Excessive brightness. Flyback lines. (picture attached)
• No E/W correction. Vertical jitter. after warm-up.
• Black picture. Picture is present via aerial. (extract of circuit diagram attached)
• TP24 (S2000A) in the PSU is defective. (+ extract of circuit diagram)
• Incorrect tuning voltage. (with circuit diagram extract)
• High voltage flashover between line transformer and CL52. (extract of circuit diagram attached)
• Intermittent faint vertical line in picture.
• Poor RC sensitivity.
• Enter service mode.
• Power supply and mains fuse are regularly defective. (part of circuit diagram displayed)
• E/W fault. Pincushion effect. Can be adjusted with the potentiometer PG02. (with circuit diagram extract)
• No picture. intermittently. Dark picture. intermittently. (picture attached)
• Starts only at the third attempt. (with circuit diagram extract)
• Coloured lines in the top part of the screen whose position can be changed with alignment "Vertical Position" (extract of circuit diagram attached)
• Intermittently dead. Channel display on .
• Only horizontal line in picture at the bottom. (+ extract of circuit diagram)
• E/W fault (intermittently). (+ extract of circuit diagram)
• No E/W correction. (with circuit diagram extract)
• Line does not start up. No pulse on pin 10/IL14. (with circuit diagram extract)
• Green picture. Flyback lines.
• Sound bounces from normal to extremely loud. (+ extract of circuit diagram)
• White screen. after a while. Flyback lines. (part of circuit diagram displayed)
• Picture disappears from bottom towards top and jitters after 30 mins.
• Noise in audio (via AV). (part of circuit diagram displayed) (72PRESTIGE tips)
• Red fails, comes back during TXT mode.
• Switches off intermittently and then pulsates 3 times.
• No picture. Mostly dark screen, but intermittently picture flashes up brightly. (part of circuit diagram displayed)
• Switches to standby (intermittently). (part of circuit diagram displayed)
• Noise in picture. No picture. (extract of circuit diagram attached)
• Horizontal lines in upper area after switch on. 3-4 dark lines run after warm-up from top to bottom.
• Does not store settings. Erratic display. (extract of circuit diagram attached) (72PRESTIGE tip from NORDMENDE)
• Carries out various functions by itself.
• Doesn't cycle through TXT subpages.
• Shuts down (intermittently). (extract of circuit diagram attached)
• E/W fault. Stretched picture.
• No HV. (extract of circuit diagram attached)
• No picture, so-called rainbow effect on picture tube, sound ok. (extract of circuit diagram attached)
• No picture. on lower half screen. (+ extract of circuit diagram)
• After switch off line output stage switches through three times for a short time. Then no picture and no sound. (extract of circuit diagram attached)
• PSU fails at switch on. (with circuit diagram extract)
• PSU starts poorly. (extract of circuit diagram attached)
• Stripes in lower picture area, which disappear after 30 mins.
• How to store channel.
• Dark picture. Audio OK . (picture attached)
• The picture is dark and is rainbow coloured. (+ extract of circuit diagram)
• All program sites suddenly on channel 02. (part of circuit diagram displayed)
• No or poor synchronisation. Lines in picture. (part of circuit diagram displayed)
• Erratic change over between STEREO and MONO. Poor sound on STEREO (noise- intercarrier hum). (with circuit diagram extract)
• Insufficient height. Scans on top half of screen only.
• Distorted audio. Hiss in audio (when cold).
• Line output transistor fails repeatedly. (+ extract of circuit diagram) (service info for NORDMENDE -72PRESTIGE)
• HV cracks or noises in HV section. (with circuit diagram extract)
• U2 (145V) in the power supply unit is too high. (picture attached) (service info for NORDMENDE -72PRESTIGE)
• Overdriven picture. (+ extract of circuit diagram)
• Wide dark stripes on left side of picture. (+ extract of circuit diagram)
• Appliance switches off 2 or 3 times per evening. Seems as if the high voltage switches to earth. Appliance starts up again, but cannot be operated. After using the on/off switch, appliance functions ok again.
• Turns itself after a short warming off. Can only be turned on after short cooling off time. (extract of circuit diagram attached)
• Picture becomes dark after an extended operating time. Further indications on the display. (picture attached)
• Not tuning properly. Not selecting UHF. (+ extract of circuit diagram)
• No focus. (part of circuit diagram displayed)
• Primary PSU can not be loaded with 60W. (with circuit diagram extract)
• Switches on 3 times, high voltage is built up for a short time. (picture attached)
• Two white 3 cm wide wavy lines in lower picture side. Switches off. (with circuit diagram extract)
• Buzz in audio. (extract of circuit diagram attached)
• Picture trembles and pulls. Gets better after a few minutes.
• E/W IC defective again immediately after switch on. (+ extract of circuit diagram)
• Deflection processor TEA2029 fails repeatedly. Rainbow effect in upper picture area. (extract of circuit diagram attached)
• Sound hisses. Undulating verticals.
• No start up if a satellite receiver is connected. Standby does not function. Processor does not start. (with circuit diagram extract)
• Depending upon picture content appliance shutsdown then starts up immediately. (part of circuit diagram displayed)
• Horizontal noise bars intermittently. Bars shift from top to bottom of screen. (service info for NORDMENDE -72PRESTIGE)
• Vertical white line. on the left. (extract of circuit diagram attached)
• No audio (intermittently).
• After approx 1 min picture with colourful lines in the top third of the screen. Then dark picture and "Cut-Off" lines in the bottom third of the picture. (extract of circuit diagram attached)
• No OSD. No TXT. (picture attached)
• No start-up. when cold. (picture attached)
• Reduced horizontal size. Line tearing. (part of circuit diagram displayed)
• Loss of picture approx 3 mins after switch on from cold. Seems coded or out of sync. Functions well after about 30 secs. (part of circuit diagram displayed)
• Faulty TXT.
• Sound hisses in stereo. Mono ok. (extract of circuit diagram attached)
• No audio. No picture. Switches to protection mode (after a while). (part of circuit diagram displayed)
• Vertical shadow bars, especially on the left hand side. (picture attached) (72PRESTIGE tip from NORDMENDE)
• Snow in picture.
• Hum in audio. depending on picture content. (picture attached)
• After changing the LOPT, occasionally the appliance does not switch on and pulsates slowly. (NORDMENDE - 72PRESTIGE information)
• No picture. Audio OK . (with circuit diagram extract)
• No picture. Horizontal lines. on upper half screen. Audio OK . (+ extract of circuit diagram)
• Tripping.
• Carrier hum. (part of circuit diagram displayed)
• Coloured lines. (with circuit diagram extract)
• Rotating vertical lines on the whole picture. (extract of circuit diagram attached)
• After 3 mins, no sound. RC does not react. Volume display appears on screen.
• Horizontal line. (extract of circuit diagram attached)
• Dead. Burning smell. (part of circuit diagram displayed) (NORDMENDE - 72PRESTIGE information)
• No station memory. Loses all stored values (stations, norm values ...).
• Poor audio. when cold. (part of circuit diagram displayed)
• Two wide interference lines (like defective RF-cable). Via scart OK. (part of circuit diagram displayed)
• Dead. (part of circuit diagram displayed)
• Black picture. Small, bottom part of a circle at top edge of the picture (white lines). (service info for NORDMENDE -72PRESTIGE)
• Tuning drift, blank screen with no teletext. Also dead set plus other odd effects may occur.
• No horizontal deflection. when cold. (+ extract of circuit diagram)
• Venetian blind effect. on the left.
• Starts only if U1 is raised to maximum. (with circuit diagram extract)
• Noise in FIF and UIF modes.
• Chopper transistor TP24 fails at switch on or after a short while. (+ extract of circuit diagram)
• Picture lines in top of picture have moved in relation to each other. (picture attached) (NORDMENDE - 72PRESTIGE information)
• No line oscillation. (extract of circuit diagram attached)
• Trips. (extract of circuit diagram attached)
• Switches off if contrast and brightness are high, and then on again. Display stays. (with circuit diagram extract)
• No start-up. (+ extract of circuit diagram)
• Pulsates three times in 3 secs. No picture. (extract of circuit diagram attached) (72PRESTIGE tip from NORDMENDE)
• Horizontal collapse. (extract of circuit diagram attached)
• OSD is not superimposed. No tuning possible. (+ extract of circuit diagram)
• No synchronisation. (picture attached)
• Vertical line. on upper half screen. (part of circuit diagram displayed)
• Pulsates 3x, goes to protective switching. (72PRESTIGE tips)
• No functions. Standby LED lit . (with circuit diagram extract)
• Occasionally during operation appliance switches to standby. It cannot be switched on again with the remote control. However you can switch on with the mains switch. (extract of circuit diagram attached)
• Crackling audio. (with circuit diagram extract)
• Line output missing when cold. (part of circuit diagram displayed)
• The mains main fuse (2A/tr) on the power supply unit is defective. After fitting the fuse the appliance switches off (after trying to start up 3 times). (with circuit diagram extract)
• Blank raster. No reception. AV OK .
• PSU start up but no HV. (with circuit diagram extract) (NORDMENDE - 72PRESTIGE information)
• No function after replacing the battery and the display. (picture attached)
• No picture. after a few minutes. Coloured lines. (part of circuit diagram displayed)
• Noise in audio. OK via SCART .
• When turning on with the main switch, the TV will not start up or the store is lost.
• No horizontal deflection. (picture attached) (72PRESTIGE tip from NORDMENDE)
• No OSG just black boxes, also weak teletext.
• Linearity at the bottom: 10cm black bar. Picture height- and position can be positioned. (with circuit diagram extract) (NORDMENDE - 72PRESTIGE information)
• Red LED blinks constantly once a sec. (with circuit diagram extract)
• Reduced vertical size. Picture shifted vertically (at top). (picture attached)
• Pumps 3 times then no more functions. No display. (service info for NORDMENDE -72PRESTIGE)
• No colour.
• Intermittently cogging and slight E/W inflection. (part of circuit diagram displayed)
• Ballooning effect. at bottom. (part of circuit diagram displayed)
• Line output transformer is S/C. (with circuit diagram extract)
• Switches off by itself (at start-up). (part of circuit diagram displayed)
• Colour noise.
• Drifts off tune on UHF and on the upper VHF ranges. Also creates noisy stripes in the picture. (+ extract of circuit diagram)
• Menu appears on screen. (picture attached) (72PRESTIGE tip from NORDMENDE)
• Start up with picture and sound but after 10-20 mins picture becomes snowy and sound noisy. (with circuit diagram extract)
• Vertical white line. (picture attached)
• Dancing white horizontal lines on a stripe which is approx 10cm wide. Dark picture. (picture attached) (72PRESTIGE NORDMENDE repair tip)
• Severe noise in the sound.
• Protective circuit starts up intermittently at beam current changes. Switches to standby. (extract of circuit diagram attached)
• Vertical collapse. Flickering picture. (extract of circuit diagram attached)
• TXT clock stops. Each time a 5cm part of the picture is missing. (with circuit diagram extract) (NORDMENDE - 72PRESTIGE information)
• Picture fails, then no sound, no display. Switches to standby after 10 mins. (with circuit diagram extract)
• Lines in picture. at top. Hiss in audio.
• No or incorrect reaction to channel adjustments.
• Starts up three times then switches off. (+ extract of circuit diagram)
• No picture. No sound. Appliance fails three times. (picture attached)
• Flashing picture. (picture attached)
• The east/west IC TDA4950 blows immediately after being fitted.
• Start up with a blue screen. Picture is hardly visible, though contrast and brightness are on maximum (72PRESTIGE tip from NORDMENDE)
• Strong beam current and dependent chirping from the mains transformer. (+ extract of circuit diagram)
• At switch on PSU pumps three times. (+ extract of circuit diagram)
• Pulsates (3 times in 3 secs) and creaks rhythmically.
• Forced reset for control processor.
• Line output transistor fails repeatedly. at start-up. (with circuit diagram extract)
• Reduced vertical size. after a while. Flyback lines. Knock sensitive. (picture attached)
• Vertical lines (intermittently) pulling to the left at the top of the screen. No tuning.
• Protection mode activated. (+ extract of circuit diagram)
• Line tearing. E/W fault. (part of circuit diagram displayed)
• Sound creaks. (+ extract of circuit diagram)
• Switches to protection mode. (part of circuit diagram displayed) (72PRESTIGE tip from NORDMENDE)
• Poor picture. via tuner. No audio. intermittently. OK via SCART . (picture attached)
• No videotext at SCART connection. (part of circuit diagram displayed)
• No functions. (extract of circuit diagram attached)
• Interference in picture. No picture. after a few minutes. No audio. OSD OK . (picture attached)
• Noise bars on some VHF channels after few minutes. Picture disappears intermittently. (with circuit diagram extract)
• OSD is not superimposed, no tuning possible. (+ extract of circuit diagram)
• Hum in audio. (+ extract of circuit diagram)