KVA2121D / OTTOVERSAND [TV]

• Audio quality problem intermittently. Intermittent no sound or crackling. (extract of circuit diagram attached)
• Purity error when switching. Purity errors on screen after initial switch on.
• The white balance varies when changing the colour intensity. (with circuit diagram extract) (KVA2121D tips)
• No audio (after a few minutes). (+ extract of circuit diagram)
• Tuner adjustment is off tune. Fine tuning does not store information. (KVA2121D OTTOVERSAND repair tip)
• Display OSD wobbles. Stripes in picture.
• Picture and sound disappear. (with circuit diagram extract)
• No HV. (+ extract of circuit diagram)
• Colour cuts out (knock sensitive).
• No picture. Audio OK . (with circuit diagram extract)
• Sound goes off. STEREO lights go out and goes into MONO.
• Lines in picture. (extract of circuit diagram attached)
• No functions. (with circuit diagram extract)
• White horizontal lines in picture. Broad lines when cold. Thin lines when warm, or no lines. (part of circuit diagram displayed)
• HV crackles shortly after switch on, then no function. (+ extract of circuit diagram)
• RC units.
• 137V voltage collapses at switch on. (picture attached) (KVA2121D tip from OTTOVERSAND)
• Tuning drifts or unstable.
• OSD bounces intermittently from left to right. If it bounces too intense, brief loud sound interference appears and program switches over or switch on problems occur. (with circuit diagram extract) (KVA2121D tips)
• RC units.
• Service information. Original tuner (SUF944PLL) is replaced by tuner U944C. Only for UK models. (picture attached)
• Erratic start-up. Standby LED flashes . (picture attached)
• No colour. after a few minutes. (with circuit diagram extract)
• Occasionally sound dropout on tuner/IF board: breaks are very rare (only once in the workshop) and impossible to localise component at fault.
• Horizontal lines across screen. Humming. (part of circuit diagram displayed)
• Hum in certain mode. Sets which have R637 fitted may hum in standby mode.
• No colour after 10 mins operation.
• Colour bleeding. Weak colours.
• Incorrect colour and spots on white background.
• After about ten minutes, the sound and picture would disappear, leaving a raster with an unlocked display and no colour. (KVA2121D tip from OTTOVERSAND)
• Volume varies. (+ extract of circuit diagram)
• White horizontal lines across top of picture.
• Distorted frame. (with circuit diagram extract)
• Service information. When stocks of 21", 25" and 29" crt's are exhausted, they will be replaced by an itc, comprising CRT + scan yoke.
• After a short operation time, screen becomes black without sound or ripples in B/W.
• Intermittently right side of the picture only has incorrect colour. (picture attached)
• Audio crackles, OSG jitters and loss of colour.
• No TXT. (extract of circuit diagram attached)
• Switches from each program to C02 after approx 5 mins. It is OK after switch over but fault recurs.
• Sound cuts out for long moments after operating for approx. 30 mins.
• No audio. (extract of circuit diagram attached)
• Adjustment of station logos.
• Audio quality problem intermittently. Intermittent no sound or crackling. (picture attached)
• Unstable volume. (with circuit diagram extract)
• Blank raster. (picture attached)
• No RC functions. intermittently.
• Black screen. intermittently. (extract of circuit diagram attached)
• Vertical streaks. at top. (picture attached) (OTTOVERSAND - KVA2121D information)
• Service information. B1 board with a new IC310.
• Loss of colours after switching appliance on again 5 mins after it has played for an hour. Colours OK when not switched off.
• Pulsates four times then switches off.
• No audio in certain mode. Audio muting may occur when returning to a channel with fine tuning from a blank channel. (with circuit diagram extract)
• Value of C817 capacitor.
• No colour. intermittently.
• Crackling audio. intermittently.
• Starts 4 times and then turns OFF. (with circuit diagram extract)
• No RC functions. (extract of circuit diagram attached)
• After a few seconds the sound becomes distorted. (part of circuit diagram displayed)
• Retrace lines. after warm-up. (+ extract of circuit diagram)
• Picture compressed in the centre. Black band at the bottom of the screen. (picture attached)
• Switches to protection mode. (+ extract of circuit diagram)
• When volume level is changed it goes to maximum level only. (part of circuit diagram displayed)
• Interference in audio. (OTTOVERSAND - KVA2121D information)
• Hiccups 4 times and then fails (in cold condition). (with circuit diagram extract)
• Intermittent colour and picture flashing. (OTTOVERSAND - KVA2121D information)
• Sub colour adjustment.
• Volume cannot be turned down, jumps back to approx 70 %.
• The screen is black or very dark. (picture attached)
• Distorted lines in lower picture third.
• Service information. New B1 board with a new IC310.
• Picture flickers and breaks down (wobbles).
• Low contrast comes up after while. Flyback lines. (part of circuit diagram displayed)
• No start-up. after warm-up.
• Volume level decreases. OSD OK.
• Volume uncontrollable. (+ extract of circuit diagram)
• Power supply voltage is too high. Cannot be adjusted with pot. (+ extract of circuit diagram)
• How to adjust beat zero.
• Intermittently programmes change.
• Screen remains black or picture is poor. (KVA2121D tips)
• Appliance jumps from stereo to mono and vice versa when using a mono VCR or satellite receiver or an aerial plug (not via scart). Normal TV channels ok.
• Picture sometimes becomes slanted with underlining. (with circuit diagram extract)
• PSU fails. (part of circuit diagram displayed)
• PSU pumps three times at switch on. Standby LED switches off.
• Channels change at random.
• Picture is poor with flyback lines and pulsing brightness. (part of circuit diagram displayed) (KVA2121D OTTOVERSAND repair tip)
• Switches to program site 00 after operating for a while.
• Hum in certain mode. Sets which have R637 fitted may hum in standby mode. (extract of circuit diagram attached) (OTTOVERSAND - KVA2121D information)
• Spare part information - Value for R822.
• Occasionally no sound in SECAM mode, no problem in PAL.
• No audio in certain mode. Audio muting may occur when returning to a channel with fine tuning from a blank channel. (extract of circuit diagram attached)
• Black screen. No display. (extract of circuit diagram attached)
• Intermittent or no colour.
• Strong colours. (part of circuit diagram displayed)
• Picture becomes intermittently B/W.
• No audio. (with circuit diagram extract)
• No reception. (+ extract of circuit diagram) (KVA2121D tip from OTTOVERSAND)
• No vertical deflection. (+ extract of circuit diagram)
• Intermittently top of screen rolls, loses colour, picture pulses or twitches.
• Adjustment after replacement of trimmer or crystal.
• Sound increases suddenly up to max. Power supply problem in reception, even without touching the RC. PB is normal. (KVA2121D OTTOVERSAND repair tip)
• Poor distorted sound. (with circuit diagram extract)
• Power problem intermittently. At switch on the red power supply lamp may light up but the power supply may sometimes trip as in overcurrent detection. (extract of circuit diagram attached)
• No picture. Standby LED does not light.
• Channel drift.
• Hum in certain mode. Sets which have R637 fitted may hum in standby mode. (extract of circuit diagram attached)
• Service information. Mcb connecting leads. (picture attached)
• Switching transistor and mains fuse fail repeatedly. (extract of circuit diagram attached)
• Picture fails. (+ extract of circuit diagram)
• Service information. When stocks of 21", 25" and 29" crt's are exhausted, they will be replaced by an itc, comprising CRT + scan yoke.
• Only channels 59 and AV present; audio is set to maximum. (part of circuit diagram displayed)
• IC8170 blows at switch on. (+ extract of circuit diagram)
• Intermittently no audio or crashing sound, in particular during mechanical bangs.
• Channels change to 1. (with circuit diagram extract)
• Volume goes automatically to max. after short run length. Volume can be turned down. But after a short while it is on max. again. (OTTOVERSAND - KVA2121D information)
• Jumps from program site 2 to 00, jumps to and fro, then stays on program 00. (+ extract of circuit diagram)
• Service information. When stocks of 21", 25" and 29" crt's are exhausted, they will be replaced by an itc, comprising CRT + scan yoke.
• No vertical synchronisation on bright picture content via scart.
• Pulsating picture.
• No RC functions. Hum in audio. (extract of circuit diagram attached)
• Picture runs through. (+ extract of circuit diagram)
• No audio in certain mode. Audio muting may occur when returning to a channel with fine tuning from a blank channel. (part of circuit diagram displayed)
• Varicap adjustment (tuning) shifts intermittently.
• Low audio (on the right). (with circuit diagram extract)
• Tuner IF fails. Picture is red then black. (with circuit diagram extract)
• No channel storing. (extract of circuit diagram attached)
• Flashing picture. Applicable to sets which have a new B1 board without a screening can. See also bulletin TV00692. (part of circuit diagram displayed)
• Reduced vertical and horizontal size. Low audio. (picture attached)
• Service information. New B1 board with a new IC310.
• Tuning drifts. (picture attached) (KVA2121D OTTOVERSAND repair tip)
• Tripping. (part of circuit diagram displayed)
• Flyback lines. at top. (with circuit diagram extract)
• No SECAM sound. Sound OK in PAL. Picture OK in SECAM and PAL.
• TXT doesn't function. Greenish background.
• Maximum audio volume, intermittently.
• Intermittently switch to PR00. (part of circuit diagram displayed)
• Horizontal line. (+ extract of circuit diagram)
• Power supply goes on and switches then on and off rhythmically. Several white streaks on screen for a short while. (extract of circuit diagram attached)
• Audio quality problem intermittently. Intermittent no sound or crackling. (extract of circuit diagram attached)
• Starts up on channel 59. It is possible to set standard and channels but appliance switches back to channel 59 as soon as memory key is pressed. LEDs A and STEREO are lit.
• PSU pulsates. (part of circuit diagram displayed)
• Picture and sound is intermittent or negative picture.
• When the channel signal disappears, the AFT searches for the next signal. This new frequency will then be stored in memory. (with circuit diagram extract)
• No degaussing.
• Starts up 4 times, then no function. (part of circuit diagram displayed)
• No audio in certain mode. Audio muting may occur when returning to a channel with fine tuning from a blank channel. (with circuit diagram extract)
• Picture and sound drop intermittently out. Only green programme display in picture. (with circuit diagram extract)
• Beeps.
• General information.
• Part number info: rear cover.
• PSU IC and PSU transistor defective. (part of circuit diagram displayed) (KVA2121D tip from OTTOVERSAND)
• OSD flickers, picture disappears after a while. (part of circuit diagram displayed)
• Purple stain on top right-hand side corner.
• Service information. When stocks of 21", 25" and 29" crt's are exhausted, they will be replaced by an itc, comprising CRT + scan yoke. (KVA2121D OTTOVERSAND repair tip)
• Error codes. (+ extract of circuit diagram)
• No audio in certain mode. Audio muting may occur when returning to a channel with fine tuning from a blank channel. (part of circuit diagram displayed)
• No picture. when changing channels (intermittently). (with circuit diagram extract)
• No or intermittent start-up. (part of circuit diagram displayed)
• Intermittent colour.
• No colour.
• Mechanical screeching, whistling, chirping from HV unit. (extract of circuit diagram attached)
• Switch has to be pressed several times to start the appliance. Sound fault. (picture attached)
• No colour. after a while. Interference in picture.
• Signal loss on all channels with red or blue lines. Bright dots on screen. Occasionally picture is OK but with no colours at all.
• Picture too big. Switches off by itself. (picture attached)
• Audio cannot be adjusted.
• No sound in aerial mode. Functions via the scart sockets. (picture attached)
• How to store medium values for brightness and volume.
• No picture.
• No satellite reception. (KVA2121D tips)
• No picture. No sound. No keyboard and RC functions. LED blinks every 5 seconds.
• Colour fails when warm.
• No sound in SECAM or intermittent sound. (OTTOVERSAND - KVA2121D information)
• Sometimes colour disappears. B/W picture.
• Procedure to initialise Eprom after replacement.
• Fine stripes in upper quarter of picture. (+ extract of circuit diagram)
• Picture jitters from top to bottom, intermittently at the sides. Jitter decreases after a while but does not stop completely. Sometimes 5cm black bars at the top and bottom after start up, then picture jitters even more.
• Only a green streak in the middle of screen. OSD appears on this streak.
• Service information. When stocks of 21", 25" and 29" crt's are exhausted, they will be replaced by an itc, comprising CRT + scan yoke.
• No picture. Text has one colour missing. (picture attached) (KVA2121D tips)
• After longer operation colours disappear.
• Hum in certain mode. Sets which have R637 fitted may hum in standby mode. (extract of circuit diagram attached)
• Warped picture after some time. (with circuit diagram extract)
• Service information. New B1 board with a new IC310.
• OSD fades away. (with circuit diagram extract)
• Intermittent colour.
• When increasing volume of appliance via RC, sound becomes lower by itself after finishing the adjustment, also when lowering volume appliance becomes louder or lower ie. sound varies. (part of circuit diagram displayed)
• Pincushion distortion. on sides. Excessive horizontal size. (+ extract of circuit diagram) (KVA2121D OTTOVERSAND repair tip)
• Tuning drifts. intermittently.
• Flickering colours. Knock sensitive.
• Slow start-up. (+ extract of circuit diagram)
• Intermittently stops. (+ extract of circuit diagram)
• No synchronisation. (part of circuit diagram displayed)
• Volume skips to high, can be decreased by RC.
• Distorted or no audio. via tuner. OK via SCART . (part of circuit diagram displayed)
• No sound. Video ok. Sound functions well via scart. (KVA2121D tips)
• Line output stage defective. (picture attached)
• Standby LED blinks intermittently after switch on. (with circuit diagram extract)
• Picture is red. If colour contrast is reduced, picture is black-white.
• Red, green and blue lines at top of screen. (extract of circuit diagram attached)
• Sound drops out then comes back after several moments.
• No colour. after warm-up.
• Switches to standby. (extract of circuit diagram attached)
• Intermittent symptoms - picture rolls, goes black and white with pulsing, or line twitching occurs at the top of the picture.
• Intermittent colour.
• All channels drift within 15 mins.
• No audio. (picture attached)
• No start-up. LED blinks . (picture attached)
• Picture rolls/goes B/W or line twitching at top of screen.
• Service information. When stocks of 21", 25" and 29" crt's are exhausted, they will be replaced by an itc, comprising CRT + scan yoke.
• When connecting TV in cold conditions, picture flickers. Knock sensitive fault. (picture attached)
• After start-up protective circuit switches on, after several start ups appliance functions. (with circuit diagram extract)
• Bright picture with low contrast and flyback lines, after about 10-15 mins.
• No audio.
• No audio in certain mode. Audio muting may occur when returning to a channel with fine tuning from a blank channel. (+ extract of circuit diagram)
• PSU ticking. LED flashes 5 times. (picture attached)
• Vertical collapse. (extract of circuit diagram attached)
• Overspread of a colour when warm.
• No sound or sound level varies. (picture attached)
• Slow start-up. when cold. (with circuit diagram extract)
• No functions on RC. Noisy sound. (+ extract of circuit diagram)
• No picture. (+ extract of circuit diagram)
• How to adjust chroma oscillator frequency.
• Red picture. Flyback lines. Trips.
• Switches to standby (intermittently). (picture attached)
• RC units.
• Intermittent loss of colour or colours getting brighter and more saturated as set warms up. (picture attached)
• Grey screen. Retrace lines. after a few seconds. (picture attached)
• After start-up audio is quiet but gradualy gets louder and gets normal after a short time.
• Buzz on sound in standby. (extract of circuit diagram attached)
• Text picture geometry distorted.
• Picture disappears after short operation. OSD oscillates. (extract of circuit diagram attached)
• Wrong colours which are displaced half inch to the right. (+ extract of circuit diagram)
• Intermittent colour.
• Colour fails.
• RC units. (KVA2121D tip from OTTOVERSAND)
• RC units.
• Hum in certain mode. Sets which have R637 fitted may hum in standby mode. (picture attached)
• Green purity smear at upper left coin and purple purity smear at upper right corner.
• Veil and picture oscillation. (extract of circuit diagram attached)
• OSD constantly visible.
• Channel OSG sway intermittently from side to side then set powers down. (+ extract of circuit diagram)
• Bright screen and retrace lines about 2 inches from top. (with circuit diagram extract)
• Incorrect colours.
• After a flash goes back to channel 0. OSD displays VIDEO 00. (+ extract of circuit diagram)
• Tuning drifts. intermittently.
• Black screen and no sound when switching TV on in cold conditions. Standby LED lights up after a short while. TV functions OK. Loud "plof" noise in loudspeakers. (part of circuit diagram displayed)
• There are 2 chassis for this model: AE1-B and AE1-C.
• Black hum bar type effect for first few secs after channel change. (part of circuit diagram displayed)
• Intermittent chroma (digital board).
• Tuner drifts off tune and programs block.
• Poor picture with red line.
• Channel number flickers between two numbers. (part of circuit diagram displayed)
• At switch on pulsates 3 times. (part of circuit diagram displayed) (KVA2121D OTTOVERSAND repair tip)
• Horizontal white line. (part of circuit diagram displayed)
• Service information. B1 board with a new IC310.
• Interference on low channels. (with circuit diagram extract)
• No functions. Starts up, then beeps 3 times and shutsdown. (part of circuit diagram displayed)
• Irregularity of the sound. (KVA2121D tip from OTTOVERSAND)
• Intermittent loss of colour in PAL, SECAM OK. (picture attached)
• Sub colour adjustment.
• At switch on picture takes longer than usual to appear (tube unblocking). (part of circuit diagram displayed)
• Resembles incorrect tuning, or the appliance goes to mute. (+ extract of circuit diagram)
• Power supply chopper transistor 2SD1548 S/C. (picture attached)
• Yellow, approx 5mm vertical line through the picture. (+ extract of circuit diagram)
• Picture is too wide, distorted, goes into safety mode if not adjusted. (part of circuit diagram displayed)
• Odd colour patches
• No OSD. No reception. Black screen. Standby LED flickers every 20 seconds. (extract of circuit diagram attached)
• No audio in certain mode. Audio muting may occur when returning to a channel with fine tuning from a blank channel. (picture attached)
• The picture flickers from colour to black-and -white very frequently.
• If a program is selected,appliance switches to and fro between selected program and 00, sometimes several times per sec. Picture temporarily OK. (extract of circuit diagram attached)
• No reception of band I cable TV. Band III and Band IV ok.
• Green picture. Black screen. intermittently. Audio and OSD OK .
• Pumps, starts after several attempts. Picture and sound OK.
• Dead. (part of circuit diagram displayed)
• Value of capacitor C815.
• PSU transistor fails again after approx 3 mins. (+ extract of circuit diagram)
• After a while starts switching between the channel where it was at that moment and channel 00. After restart remains on channel 00. (with circuit diagram extract)
• Horizontal lines. (part of circuit diagram displayed)
• Audio quality problem intermittently. Intermittent no sound or crackling. (+ extract of circuit diagram)
• Stations drift off tune. Programs block.
• OSD flickers. Intermittently buzzing sound. (extract of circuit diagram attached)
• Stuck in PAL.
• Vague horizontal bars and picture takes a long time to appear. Noise in the start up speaker. (part of circuit diagram displayed)
• Dim picture. Excessive brightness. (extract of circuit diagram attached)
• Blurry picture. (+ extract of circuit diagram)
• OSG sways from side to side. (part of circuit diagram displayed)
• Intermittent colour. (picture attached)
• Loudspeaker crackle at switch on, no picture content.
• No audio.
• No sound at switch on. Sound returns by itself sometimes after 15 mins or sometimes longer after 30 mins.
• Collapsed verticals.
• Does not store stations.
• Picture is too wide and fails when warm. (+ extract of circuit diagram)
• No tuning immediately after start up or channel dropout faults.
• When storing a station the station is placed at each programme site. The same thing repeats when storing a new station. (picture attached) (KVA2121D OTTOVERSAND repair tip)
• After a while skips to another program station at random. (picture attached) (KVA2121D tips)
• No switch on from standby. Power supply shuts down. (part of circuit diagram displayed)
• Pulsates 4 times on start up from mains and then switches off. No standby display. (part of circuit diagram displayed)
• Hum in certain mode. Sets which have R637 fitted may hum in standby mode. (extract of circuit diagram attached)
• No power supply. Rattle for a few seconds. (extract of circuit diagram attached)
• No audio.
• Teletext ok. Otherwise only a dark picture with digit OSD without sound. (extract of circuit diagram attached)
• No audio in certain mode. Audio muting may occur when returning to a channel with fine tuning from a blank channel. (part of circuit diagram displayed)
• Picture foldover at the bottom of the screen. Adjustments work but fault persists, (+ extract of circuit diagram)
• Colour lost intermittently, excessive flickering and pulls sideways at top.
• Intermittent HV flashover at the CRT neck.
• Attempts to start up once, gives three pulses and then goes into safety mode.
• No colour in PAL.
• Reduced vertical size. Poor vertical linearity. (with circuit diagram extract)
• No audio. (with circuit diagram extract)
• Dark picture with on-screen display, no sound. Videotext is OK. (+ extract of circuit diagram)
• It is constantly on program site 2. Analog values can be adjusted but bounce back immediately to the initial value (part of circuit diagram displayed) (service info for OTTOVERSAND -KVA2121D)
• Volume increases automatically.
• Vertical jitter. LED blinks . Trips. (with circuit diagram extract)
• Audio quality problem intermittently. Intermittent no sound or crackling. (with circuit diagram extract)
• Varicap voltage drift.
• Weird colour patches.
• Poor sound as if in mute. (with circuit diagram extract)
• No colour. TXT OK .
• No audio in certain mode. Audio muting may occur when returning to a channel with fine tuning from a blank channel. (extract of circuit diagram attached)
• Pulsates 4 times, then no function.
• Spot on right of picture.
• Black horizontal lines in the middle of the picture (possibly at the bottom as well). (extract of circuit diagram attached)
• Strong noises from demagnetizing coil after plug has been pulled out. (+ extract of circuit diagram) (KVA2121D OTTOVERSAND repair tip)
• RC units.
• No colour. (service info for OTTOVERSAND -KVA2121D)
• Bright bar at top of screen. (+ extract of circuit diagram)
• Drops out intermittently and switches to another channel and sound crackles. (extract of circuit diagram attached)
• No colour. via SCART. (extract of circuit diagram attached)
• Service information. New B1 board with a new IC310.
• Standby LED flashes slowly. (picture attached)
• Q602 defective. (picture attached)
• Service information. New B1 board with a new IC310.
• Poor colour. One colour missing. Low brightness. (picture attached)
• OSD and picture noisy. (part of circuit diagram displayed)
• No start-up. when cold. LED blinks . (extract of circuit diagram attached)
• No colour (after a few minutes). (part of circuit diagram displayed)
• Crackling audio. intermittently.
• Hum at switch on. Purity spots.
• Deflection fault, distortion and picture oscillation at bottom of screen. (with circuit diagram extract)
• The STEREO indicator intermittently switches on in mono channels. This is accompanied with rattle/noise from one channel.
• Intermittent normal, b/w or wrong colours (multi norm!).
• It may happen that during a Mono broadcasting, the stereo LED switches on. At this time, a strong audio noise may be heard.
• No audio. No picture. OSD OK. OK via SCART.
• OSD flickers. Speakers whistle. (with circuit diagram extract)
• Low audio.
• FET chopper transistor BUZ91A fails. (part of circuit diagram displayed)
• Poor picture. Flyback lines. (picture attached) (KVA2121D OTTOVERSAND repair tip)
• Q602 (2SD1548) blows at start up and fuse blows. (with circuit diagram extract)
• RC units.
• Sound only briefly present, then only mute.
• Tuning drifts.
• Service information. New B1 board with a new IC310.
• Occasionally picture and sound disappear (go out of tune), mainly a short time after switch on, if appliance is cold.
• Occasionally varicap tuning shifts. Black picture, no sound, hum.
• Distorted audio. The speaker cabinet vibrates.
• No colour.
• No colour. (with circuit diagram extract)
• Low audio after start-up. OK after a few minutes.
• Intermittent colour (after warm-up).
• Set up nominal values for the picture setting.
• Hum in certain mode. Sets which have R637 fitted may hum in standby mode. (+ extract of circuit diagram)
• Rustle of EHT at switch on then powers down with LED flashing four times. (extract of circuit diagram attached)
• No tuning.
• No colour (intermittently). (extract of circuit diagram attached)
• Pulsates four times at switch on and then switches to standby.
• Purity errors and E/W distortion.
• Stores the same station on all channels. Doesn't switch over correctly.
• Switches on. Signs on the screen, green bar and sound dropout. (with circuit diagram extract)
• Colour disappears after switching to a different channel. (extract of circuit diagram attached)
• Hum in certain mode. Sets which have R637 fitted may hum in standby mode. (+ extract of circuit diagram)
• Vertical foldover at top. (part of circuit diagram displayed)
• Picture green, with green lines. (with circuit diagram extract) (KVA2121D tips)
• Shuts down. (part of circuit diagram displayed)
• Power supply hiccups. (picture attached)
• No audio. intermittently. OK after a while .
• Audio quality problem intermittently. Intermittent no sound or crackling. (+ extract of circuit diagram)
• Intermittently microprocessor locks up with parental lock displayed. No signals. (picture attached)
• Sporadic interference from loudspeaker.
• No operation (intermittently). (picture attached) (KVA2121D tips)
• No audio. (service info for OTTOVERSAND -KVA2121D)
• Screen doesn't light up. HF noise from loudspeakers. (+ extract of circuit diagram)
• No raster. Audio OK . (with circuit diagram extract)
• Picture disappears intermittently with strong noise from FBT. Screen remains black and impossible to switch over channels. OSD remains stuck.
• Shaking picture. Tearing picture. Distorted picture. (with circuit diagram extract)
• No switch on and red light on. 140V present. No input signal on line transistor base. (picture attached)
• Service information. New B1 board with a new IC310.
• Dead. No standby. Switches 3x quietly. (part of circuit diagram displayed)
• Intermittently strong hissing in sound.
• No audio (intermittently).
• TV unit cannot be tuned to any station anymore.
• Intermittent colour.
• Hum in certain mode. Sets which have R637 fitted may hum in standby mode. (extract of circuit diagram attached)
• Service information. B1 board with a new IC310.
• VOL goes to full blast when when VOL +/- selected, then works OK. (+ extract of circuit diagram) (service info for OTTOVERSAND -KVA2121D)
• Programm jumps from 2 to 32 or from 4 to 36 or from 6 to 38 after some time.
• Flashing horizontal black lines. Occasionally appliance may function OK. (with circuit diagram extract)
• Width is reduced and verticals bent. (extract of circuit diagram attached)
• Faulty OSD. (with circuit diagram extract)
• Hum sound in standby mode.
• Picture on left side is concaved. (part of circuit diagram displayed)
• Audio quality problem intermittently. Intermittent no sound or crackling. (extract of circuit diagram attached)
• No picture, no RC reception, LED flashes a few secs.
• Sound is missing from right hand channel. (part of circuit diagram displayed)
• No channel storing.
• Excessive horizontal size. E/W fault. (+ extract of circuit diagram)
• No or intermittent start-up. Knock sensitive. (with circuit diagram extract) (KVA2121D tip from OTTOVERSAND)
• Noise from loud-speaker.
• Picture distorted and reduced. Picture becomes longer when hot. (with circuit diagram extract)
• Switches to next odd number when selecting preset even number (2,4,6, etc.) (without using RC). (+ extract of circuit diagram)
• Mono/stereo identification problem in stereo (pal B/G) transmission reception. (with circuit diagram extract)
• B1 board change.
• Power supply starts up and goes then to PROTECT mode. Standby light on. (extract of circuit diagram attached)
• Retrace lines. (extract of circuit diagram attached)
• Horizontally stretched picture.
• No sound in SECAM L.
• Pale or distorted picture or black and white picture. (with circuit diagram extract) (KVA2121D tips)
• No audio in certain mode. Audio muting may occur when returning to a channel with fine tuning from a blank channel. (with circuit diagram extract)
• Poor vertical linearity (stretched at the top, collapsed at the bottom). (extract of circuit diagram attached)
• Picture only appears approx 2 mins after switch on. Audio OK. (+ extract of circuit diagram)
• Service information. When stocks of 21", 25" and 29" crt's are exhausted, they will be replaced by an itc, comprising CRT + scan yoke.
• No audio in certain mode. Audio muting may occur when returning to a channel with fine tuning from a blank channel. (extract of circuit diagram attached)
• Vertical lines are ragged. (with circuit diagram extract)
• Starts up three times then switches off. (+ extract of circuit diagram)
• Flashing picture intermittently. May also have colour dropout. See also bulletin TV00593.
• General information.
• No reception (intermittently). (with circuit diagram extract)
• Insufficient height and cramping at centre of screen. (part of circuit diagram displayed) (KVA2121D OTTOVERSAND repair tip)
• A space between the tube and the cabinet may be visible.
• Colour disappears intermittently.
• Pincushion distortion. at bottom.
• Stuck in standby. (with circuit diagram extract) (KVA2121D tips)
• Ticks 3 times, then no function. (with circuit diagram extract)
• Intermittent picture size. (extract of circuit diagram attached)
• Flickering picture. No picture. intermittently. (+ extract of circuit diagram)
• Sub-brightness adjustment. (KVA2121D tip from OTTOVERSAND)
• Lines approx 5cm at the top. (part of circuit diagram displayed) (KVA2121D OTTOVERSAND repair tip)
• No picture. No OSD. (picture attached)
• Horizontal bars when switching channels. Switches off intermittently. Fault may not appear for a long time. (with circuit diagram extract)
• No reception when cold.
• Poor linearity or geometry. Frame linearity fault. Usually only occurs in sets which are more than two years old. (with circuit diagram extract)
• Doesn't start up with mains switch when cold. Standby LED flashes 4 times. (with circuit diagram extract)
• Chopper transistor S/C. (picture attached)
• Sound increases by itself.
• Colour loss.
• Poor colour. TXT is OK. (part of circuit diagram displayed) (KVA2121D tips)
• No function with the RCU. IR receiver functions. IR data reach the microprocessor. RCU functions with another CTV. (+ extract of circuit diagram) (KVA2121D tips)
• Black and white flashes on cassette ext, with Hitachi and Telefunken VCRs, OK on their recordings.
• Service information. B1 board with a new IC310.
• Frame output chip blown repeatedly. (+ extract of circuit diagram)
• No driver transistor Q805 command. (with circuit diagram extract)
• No colour. intermittently. Flickering picture.
• Dynamic convergence is out of adjustment.
• Sound disappears then returns. Picture is normal.
• Audio quality problem intermittently. Intermittent no sound or crackling. (picture attached)
• No colour (intermittently).
• Distorted picture. Interference in picture. (with circuit diagram extract) (KVA2121D OTTOVERSAND repair tip)
• No switch on from standby. The TV will not come on from standby but the standby LED is lit. 21" and 25" sets only. (+ extract of circuit diagram)
• Picture has green line going down. (part of circuit diagram displayed)
• CATV interference. (picture attached)
• Crackling audio.
• RC units.
• Dark picture is lower third, upper third folded down. (with circuit diagram extract)
• Sound level decreases. OSD shows decrease.
• Channels drift and go back to 00. (+ extract of circuit diagram)
• Switches back to "00" from every programme.
• No surround sound from speakers intermittently.
• Very intermittently volume level changes/blank raster/high pitched noise from speakers/shimmering OSG. (+ extract of circuit diagram)
• Switches immediately to program 0 at switch on. Impossible to change. (+ extract of circuit diagram)
• Switches automatically back to program 1 or 00. (service info for OTTOVERSAND -KVA2121D)
• RC units.
• Audio quality problem intermittently. Intermittent no sound or crackling. (extract of circuit diagram attached)
• Attempts to start up three times, then switches to protection mode.
• No audio in certain mode. Audio muting may occur when returning to a channel with fine tuning from a blank channel. (picture attached) (KVA2121D OTTOVERSAND repair tip)
• Poor linearity. at top. (+ extract of circuit diagram)
• Picture appears slowly. (+ extract of circuit diagram)
• Dark screen. Audio OK . (part of circuit diagram displayed)
• No start-up. when cold. (with circuit diagram extract)
• Doesn't store programs. Jumps back to 0.
• Service information. When stocks of 21", 25" and 29" crt's are exhausted, they will be replaced by an itc, comprising CRT + scan yoke.
• Volume cannot be altered, stuck near maximum. (extract of circuit diagram attached) (service info for OTTOVERSAND -KVA2121D)
• Sound only via AV. No picture. Brightness, colour, control are OK.
• Hum in certain mode. Sets which have R637 fitted may hum in standby mode. (extract of circuit diagram attached)
• Shuts down (intermittently). (picture attached) (KVA2121D tips)
• No picture. No audio. intermittently. OSD OK . (service info for OTTOVERSAND -KVA2121D)
• Hum sound in standby mode. (with circuit diagram extract)
• Appliance blows circuit protectors PS601 and PS602.
• Pincushion distortion. (with circuit diagram extract)
• Switches automatically to another channel after approx. 5 min. Preferentially to channel-S2 (112.25 MHz). Intermittently tuner switches to another frequency also. (extract of circuit diagram attached) (KVA2121D tips)
• Hum in certain mode. Sets which have R637 fitted may hum in standby mode. (+ extract of circuit diagram)
• Crackling audio.
• Switches on twice for a short time switches off. (KVA2121D tips)
• No start-up. (part of circuit diagram displayed)
• Vertical deflection fails or only vertical lines are visible. (+ extract of circuit diagram)
• Cramping at bottom of screen, width reduction and loss of audio. (picture attached)
• No colour (intermittently). (+ extract of circuit diagram) (KVA2121D tip from OTTOVERSAND)
• Excessive brightness with retrace lines even when brightness is on minimum. (+ extract of circuit diagram)
• Vertical line. in the centre. (picture attached)
• Crackling noise. Flash-over at switch on.
• Part number info: Rear Cover.
• Tries to start up. Standby LED flashes three or four times then goes out. After insisting a few times, it eventually starts up. (extract of circuit diagram attached) (KVA2121D tips)
• Intermittently PSU does not start up. (with circuit diagram extract)
• No picture at switch on. No OSD display. Sound present. Picture appears after 1 to 2 min. Time difference for when picture appears do not decrease significantly after switching off and on again. (+ extract of circuit diagram)
• Black screen. Audio OK . (+ extract of circuit diagram) (KVA2121D tips)
• No picture after 5 mins. It bounces twice, then screen becomes dark. Program display is 00. If program is selected again, picture reappears. (extract of circuit diagram attached)
• No subtitles with the "Subtitles for the hard of hearing" decoder. (part of circuit diagram displayed)
• Horizontal lines from top to bottom on screen. (part of circuit diagram displayed)
• Volume cannot be adjusted, stuck near maximum. (extract of circuit diagram attached) (service info for OTTOVERSAND -KVA2121D)
• OSG are black and should be green.
• Occasionally shift in reception. (service info for OTTOVERSAND -KVA2121D)
• Appliance must be switched on for 10 minutes before picture appears. (+ extract of circuit diagram)
• Service information. When stocks of 21", 25" and 29" crt's are exhausted, they will be replaced by an itc, comprising CRT + scan yoke.
• Switches after switch on immediately to channel site 33. If set is switched on with button 1 on RC, it switches to channel 33.
• Rhythmical ticking after start-up. (extract of circuit diagram attached)
• Wrong colours at sides. (OTTOVERSAND - KVA2121D information)
• Picture height too low and rolled-up from the top.
• HT too high at 175V. (+ extract of circuit diagram)
• On screen display is constantly mixed up. Flickering picture and plopping sounds. (extract of circuit diagram attached)
• Slight top foldover plus 6 faint flyback lines (2 red, 2 green, 2 blue). (picture attached)
• Cannot go to standby even after a few attempts to switch ON. (picture attached)
• Service information. When stocks of 21", 25" and 29" crt's are exhausted, they will be replaced by an itc, comprising CRT + scan yoke.
• Sound functions only on one side but is distorted. Comes back on both channels but is distorted.
• Audio fault in tuner mode but OK via both scarts. It begins on Canal Plus, satellite decoder or VCR: sound takes 20 mins to appear when reentering channel mode. Then, no sound in HF mode.
• Part number information. Some versions of the service manual contain a wrong part number for the rear cover.
• PSU transistor and fuse 4A are destroyed after 1-3 mins. (part of circuit diagram displayed)
• Reduced picture size. Horizontal line. (extract of circuit diagram attached)
• Sound makes a sizzling noise.
• RC units.
• Picture size incorrect. Change in size of raster. (part of circuit diagram displayed)
• RC units.
• No satellite reception. (OTTOVERSAND - KVA2121D information)
• No start-up. intermittently. (with circuit diagram extract)
• Picture wobbles after switch-on and when OSD is on.
• Loss of picture. Picture shows flashes.
• PSU switches 4 times, then no function.
• Intermittent NICAM STEREO.
• Black and white picture with strobe effect. (extract of circuit diagram attached)
• Vertical foldover at bottom. Reduced vertical size. (part of circuit diagram displayed)
• AFC does not function.
• Sound goes to maximum when adjusted. (with circuit diagram extract)
• Colour sometimes normal after start-up, sometimes white, sometimes black and white, sometimes wrong colours.
• No raster. (with circuit diagram extract)
• Dark screen. Occasionally no sound. In programming mode light screen with sync fault.
• Picture and sound are intermittent; channel number still present. (picture attached)
• RC units.
• Stations drift off tune or search does not stop. (part of circuit diagram displayed)
• Red flyback lines. (extract of circuit diagram attached)
• No audio. when cold.
• Distorted picture and vertical sync when switching on
• No start-up. after lightning strike. (with circuit diagram extract)
• Picture is vertically too small and has rounded corners. (+ extract of circuit diagram)
• Q602 (2SD1548) blown at start up. (with circuit diagram extract)
• Picture collapses. Sound is cracking. LEDs light up and go out. OSD flickers. (+ extract of circuit diagram) (KVA2121D tip from OTTOVERSAND)
• On one channel the volume is at maximum. (picture attached)
• Service information. See the bulletin for the circuit of a new B1 board with a new IC310. See also bulletins TV00692 and TV00593.
• Switches to protection mode. after start-up.
• Hum in certain mode. Sets which have R637 fitted may hum in standby mode. (extract of circuit diagram attached)
• Stored stations shift in fine tuning. At direct channel input station is stable.
• No picture. No audio. after a while. (with circuit diagram extract)
• Service information. When stocks of 21", 25" and 29" crt's are exhausted, they will be replaced by an itc, comprising CRT + scan yoke. (KVA2121D tip from OTTOVERSAND)
• White or RGB stripes on the upper part of picture. (picture attached)
• OK at switch on, then after few secs, sound becomes loud, picture flickers, field cramping, picture loss then reappears expanding away with loss of field scanning, then goes dead. (+ extract of circuit diagram) (KVA2121D tips)
• No channel storing.
• Stations disappear and reappear every 3 secs on all 30 cable programs.
• Left speaker buzzes after approx 30 mins. (with circuit diagram extract)
• Audio quality problem intermittently. Intermittent no sound or crackling. (extract of circuit diagram attached)
• OSD shifts after approx 10 mins then no picture and no sound. (extract of circuit diagram attached)
• Loss of colour when switching channels when warm. (part of circuit diagram displayed)
• No picture (intermittently).
• Switches to video input if a VCR is connected via scart and VCR is switched to standby. (extract of circuit diagram attached)
• Audio fades. intermittently.
• Channel memory loss at switch off. No volume control. Remains on original adjustment. Program OK. Channel tuning OK. (+ extract of circuit diagram)
• No start-up from standby with RC.
• Black/white picture at times or stripes in picture.
• Switches off by itself. at start-up.
• Starts up, red LED flashes twice then goes dead. (with circuit diagram extract)
• Loud noise intermittently and no picture after start-up. Error appears rarely. (+ extract of circuit diagram)
• Service information. When stocks of 21", 25" and 29" crt's are exhausted, they will be replaced by an itc, comprising CRT + scan yoke.
• Dead (intermittently). (with circuit diagram extract)
• Program display appears suddenly. Then RC doesn't function any more. (extract of circuit diagram attached)
• No audio. OK via SCART . No picture.
• Dark picture with red stripes. Picture is OK after approx 5 mins, but red is missing.
• Programming the IC-005 SDA2546
• Service information. When stocks of 21", 25" and 29" crt's are exhausted, they will be replaced by an itc, comprising CRT + scan yoke.
• Horizontally distorted picture. Rattle. (picture attached)
• Picture width twitching. Poor E/W. (+ extract of circuit diagram)
• Attempts to start up but remains unstable. Clicking noise from chopper. LED switches on at the same rythm.
• Starts up with a plopping noise from loudspeakers. Bright horizontal stripes in tuner picture in the first minutes of operation. Intermittently picture and sound OK after half an hour. (picture attached)
• Starts up at switch on, red LED flickers then appliance goes dead. (picture attached)
• Trips 3 times then enters safety mode. (picture attached)
• No sound on the French channels. In PAL the sound functions normally.
• Flyback lines. Dark picture. after a while. (extract of circuit diagram attached)
• Dead. Standby LED lights, protective circuit starts up.
• OSG jitters, audio crackles and loss of colour.
• Stuck in standby. Comes on when powered ON/OFF a few times but with no picture for approx. one min; followed with flyback lines as set warms up. (part of circuit diagram displayed)
• Pulsating picture. Distorted picture.
• Audio quality problem intermittently. Intermittent no sound or crackling. (+ extract of circuit diagram)
• Drifts in frequency. Channel change ok, locks on the correct frequency. (extract of circuit diagram attached)
• First full volume on operating volume - or + keys. Then volume can be adjusted to normal.
• Cycles on/off. (with circuit diagram extract) (service info for OTTOVERSAND -KVA2121D)
• No colour in Secam or via scart. (KVA2121D tips)
• +B voltage can not be adjusted. (extract of circuit diagram attached)
• Vertical line. (with circuit diagram extract)
• No RC functions or OSD. Intermittent colour, then intermittent video. (+ extract of circuit diagram)
• Diminishing power supply. (with circuit diagram extract)
• Contrast too low in certain mode. A dark picture is displayed in the rgb mode. (picture attached)
• Cramped at centre, stretched at top and fold over at bottom. (+ extract of circuit diagram)
• Vertical output stage bcomes defective after few weeks. (with circuit diagram extract)
• Degaussing does not work on the sides of the picture.
• Intermittently picture collapses and blanks out.
• Only starts up after several attempts or PSU switches off again.
• Switches to standby (after start-up). (part of circuit diagram displayed)
• Blocked on one programme place and when switching it always goes back. (extract of circuit diagram attached)
• Intermittently no sound during RF reception. Sound OK via scart.
• Intermittent colour. (+ extract of circuit diagram)
• No picture or sound after a while. OSD shows video output. (+ extract of circuit diagram)
• Hum in certain mode. Sets which have R637 fitted may hum in standby mode. (picture attached)
• Audio quality problem intermittently. Intermittent no sound or crackling. (picture attached)
• 12V missing on IC608. (part of circuit diagram displayed)
• Squealing noise at switch on with mains switch. Appliance goes in standby. Power LED flashes. (+ extract of circuit diagram)
• No audio. Picture OK .
• No colour via aerial or scart.
• OSD flickers constantly. Intermittently goes into standby. (+ extract of circuit diagram)
• No audio.
• Flickering picture. (extract of circuit diagram attached)
• Intermittent colour.
• Colour disappears occasionally. Picture is then black and white and curdled.
• No start-up from standby. (with circuit diagram extract)
• Service information. New B1 board with a new IC310.
• No tuning.
• Noise in picture. at high volume.
• After working ok for a while, interference on picture and sound. Channel display always shows "00". (picture attached)
• Black screen. No RC functions. (with circuit diagram extract) (OTTOVERSAND - KVA2121D information)
• OSD channel insertion remains permanently in the picture. Can be switched off with the RC. (extract of circuit diagram attached) (KVA2121D tip from OTTOVERSAND)
• Stuck in Canal Plus. (picture attached)
• Crackling audio. when cold. Knock sensitive. (part of circuit diagram displayed)
• Picture appears and disappears with horizontal sync tearing. (extract of circuit diagram attached)
• Vertical lines are bent inwards in the corners of the picture. (with circuit diagram extract)
• Program number OSD is permanently displayed. (extract of circuit diagram attached)
• +B too low, can only be adjusted from 90V to 120V (with circuit diagram extract)
• Sub-brightness adjustment.
• Poor colour reproduction. Brightness adjustment doesn't function. (part of circuit diagram displayed) (KVA2121D tip from OTTOVERSAND)
• Signal loss on all channels with red or blue characters. Bright points on screen as if aerial disconnected. Picture is OK sometimes but with no colour.
• Sound occasionally increases to maximum without the sound scale being displayed. (with circuit diagram extract)
• OSD moves and flashes. Volume level changes spontaneously. (with circuit diagram extract)
• Frizzy picture width which is not constant. (+ extract of circuit diagram)
• No sound. Picture OK.
• Sound crackles with OSD flashing. (picture attached) (service info for OTTOVERSAND -KVA2121D)
• Service information. New B1 board with a new IC310. (KVA2121D tips)
• Ragged verticals at bottom 2 inches. (with circuit diagram extract)
• E/W fault.
• Colour disappears after awhile and picture interference starts. Seems like tuning is drifting. Symptoms do not occur in the repair shops. Voltage on aerial.
• Low audio. Picture OK . (KVA2121D tips)
• Horizontal, black lines in picture depending on for how long the appliance is ON. Usually after a while RC will also no longer function. Sometimes the opposite effect, RC does not work then after a period of time black lines appear. (part of circuit diagram displayed)
• Picture appears slowly. when cold. No audio. intermittently. (with circuit diagram extract)
• Picture and sound disappear intermittently. On-screen display is disturbed. (+ extract of circuit diagram)
• Audio quality problem intermittently. Intermittent no sound or crackling. (with circuit diagram extract)
• No audio in certain mode. Audio muting may occur when returning to a channel with fine tuning from a blank channel. (extract of circuit diagram attached)
• Service information. See the bulletin for the circuit of a new B1 board with a new IC310. See also bulletins TV00692 and TV00593.
• Does not switch to standby correctly, it can be started again only by control on appliance. (part of circuit diagram displayed)
• Vertical amplitude too low . Bad vertical linearity. Dark picture at bottom. (with circuit diagram extract)
• Severe hum in standby on left channel. OK in standard mode. (part of circuit diagram displayed)
• Brief start up of power supply. Standby LED then flashes 4 times. (part of circuit diagram displayed)
• No picture. Sound only via AV. Brightness, colour, control OK. (extract of circuit diagram attached)
• No power up. Standby LED flashing with 12 secs intervals. (extract of circuit diagram attached)
• Occasionally appliance cannot be switched on from the mains switch. (+ extract of circuit diagram)
• When the Volume+ bargraph display is adjusted, it jumps up and down. (+ extract of circuit diagram)