309112 KVX2521 / HANSEATIC [TV]

• No picture, only snow. (part of circuit diagram displayed) (309112 HANSEATIC repair tip)
• Cramped raster. (+ extract of circuit diagram)
• Pulse on the collector of the line power transistor but stops immediately. 135V is correct. Supplies in 15V. (part of circuit diagram displayed)
• Only snow on channel 2 and 3 (band VHF1). (309112 tip from HANSEATIC)
• Memory loss. after a few minutes.
• Linearity fault. Upper section of picture is too wide and lower section compressed.
• Drifting. (with circuit diagram extract)
• No sound or vision, tuning searches but no signal present. (with circuit diagram extract)
• Tuner drift in frequency. Channel search is impossible. CTV still indicates auto, channels run through but no memory.
• Sound and picture disappear when hot. Only display remains at channel switch over. OK when cold.
• Voltage switches on for a short time and switches off again. (extract of circuit diagram attached)
• Approx. 2cm of picture are missing on the top edge. Stripes with bright background (linearity fault). (HANSEATIC - 309112 information)
• No audio. intermittently.
• Stretched field.
• Vertical collapse. intermittently.
• Flickering horizontal lines.
• Fizzling at start-up. Switches to standby.
• No picture channel. OSD OK.
• PSU pulsates.
• No picture. No channel storing. (extract of circuit diagram attached)
• No function. Pulsates and standby LED lights up approx. 3 times, then no function.
• No E/W correction. (with circuit diagram extract)
• Switches off by itself. after a while.
• Horizontal roll.
• Green OSD, streaking.
• Shuts down after approx 20 mins with standby light flickering. No RC operation.
• No horizontal synchronisation.
• White streaks on picture and no visual lock on channel.
• Noisy transformer. Standby noise from srt. (picture attached)
• Teletext is missing, page number only. (picture attached)
• A humbar appears in the picture when there is low brightness. Intermittent picture roll.
• The whole picture was covered by fine,shimmering horizontal black lines. (+ extract of circuit diagram)
• Appliance not functioning, burnt R807. (with circuit diagram extract) (HANSEATIC - 309112 information)
• PSU does not start up. No standby. Degausssing is audible.
• Intermittent colour.
• Switches off by itself. after start-up.
• Noise bar. (picture attached)
• Picture and sound cut out after a few mins when the channel no is displayed, returns to normal a little later. Appear not to be any defective solder joints. (with circuit diagram extract)
• TV picture remains in TXT mode and does not change channels.
• Streaks on picture, becomes dark and sometimes even switches off.
• Only snow at band I operation.
• Automatic tuning problem. Not stopping in search, may also drift on the stations that are in the memory, although OK at channel change. (part of circuit diagram displayed) (309112 tip from HANSEATIC)
• Trips.
• Distorted audio. (309112 tip from HANSEATIC)
• No synchronisation. when cold.
• Switches to standby. at start-up.
• Negative picture. when cold.
• Intermittent Nicam sound dropout or crackling, set going off tune, picture going dark or negative.
• Appliance is dead, rise in EHT then the appliance breaks down. (part of circuit diagram displayed)
• No TXT. (extract of circuit diagram attached) (HANSEATIC - 309112 information)
• Snowy effect on all programmes.
• Picture severely cramped at the bottom of the screen and stretched at the top. (+ extract of circuit diagram) (service info for HANSEATIC -309112)
• Distorted picture. Top is stretched, foldover at bottom.
• After operating for a few minutes the TV switches to black and white then makes a rumbling noise. (picture attached)
• Dark screen. (+ extract of circuit diagram)
• No vertical deflection.
• Slow start-up. when cold.
• Low brightness and orange coloured picture.
• Appears dead but blank raster if brilliance increased.
• Dark screen and no sound in UHF and negative picture in VHF after working for a few hours or days.
• Dead. after a few seconds.
• No raster. No OSD. (part of circuit diagram displayed)
• LED flashes for a few seconds then appliance goes dead. (part of circuit diagram displayed)
• No picture. after warm-up.
• Poor convergence. (309112 tips)
• Switches to protection mode.
• Field striations across the top of screen.
• No brightness. intermittently.
• Switches off straight away again after switching on. (+ extract of circuit diagram)
• No reception.
• Defective field linearity.
• Excessive vertical size. (service info for HANSEATIC -309112)
• No start-up. Protection mode activated. (part of circuit diagram displayed)
• No picture. Sound ok. Screen is red or sometimes red before picture failure.
• Searches for channels continuously. intermittently. (HANSEATIC - 309112 information)
• Shuts down. after start-up.
• R807 o/c. D803 s/c. Value of R807 and D803.
• Mains fuse blows instantly. (+ extract of circuit diagram)
• White lines in the centre of the screen on unsynchronized channels.
• R807 (1K) burns as soon as appliance starts up. (309112 tip from HANSEATIC)
• Hum in audio. in standby.
• Good power supply 135V, 14V and 7V. No sound, no picture, IC001 has been changed. Pin 16 3V instead of 0V Q606 and Q605 0.6 on the base.
• To confirm that the power supply is working.
• Jagged picture. (part of circuit diagram displayed)
• Appliance goes dead after approx 1 second. (extract of circuit diagram attached)
• R807 burnt.
• Switches to standby. after a while.
• Dead, only standby LED flashes 2 times repeatedly. (309112 tips)
• Picture goes dark then disappear but OK when warm.
• No picture. Audio OK . (with circuit diagram extract)
• Stretched field scan from centre to top of screen with no field scan from centre to bottom.
• Channel search ok in UHF and VHF but impossible to store channels. (+ extract of circuit diagram)
• Blank raster. Flyback lines. (+ extract of circuit diagram)
• Excessive brightness. Flyback lines. (extract of circuit diagram attached)
• Reduced horizontal size. Pincushion distortion.
• Screen is dark after switch on, after approx 10 mins it is blue with flyback lines and becomes brighter. After other 10 mins appliance functions faultlessly for 30 mins, then picture is completely bright with flyback lines.
• No vertical and horizontal sync. Lines only and picture running.
• When tuning after finding the desired channel, if you press the memory button everything disappears instead of fixing the picture.
• No picture. Audio and OSD OK . (+ extract of circuit diagram)
• Brief HT after switch on then switches off.
• Channels change at random.
• Linearity error.
• Interference in TXT. Searches picture but random characters. Some lines OK.
• Drifts after a few mins. No search possible when fault present. (extract of circuit diagram attached)
• No or intermittent start-up.
• Drop out. (with circuit diagram extract)
• Sound becomes louder, sound crackles, OSD also changes.
• Negative picture.
• Intermittently set will not come on either from switch on or from standby. May work correctly for several days then not come on. (with circuit diagram extract)
• Switches off after 15 mins and can be switched on again only after 15 mins.
• Picture disappears after approx 2 mins. First colours start to roll and sound disappears. (with circuit diagram extract)
• High voltage is built up, then goes off immediately.
• Intermittent TXT contrast variations.
• Reduced vertical size. (picture attached)
• LED lights up and then switches off when switching to standby. Appliance does not start up again unless it is completely switches off for 3 minutes. Functions OK if standby switching is not used.
• Rolls on some channels and certain picture content.
• Slow start-up. Negative picture. intermittently. (with circuit diagram extract)
• UHF search is correct but no channel memory. (with circuit diagram extract)
• Poor vertical linearity. (HANSEATIC - 309112 information)
• No audio. OK via SCART .
• Motorboating noise from speakers. in standby.
• Intermittent no picture. Blank raster not even channel display. (extract of circuit diagram attached)
• No response to RC: incorrect functions in VOL+ and PROGRAMME-. Picture appears slowly and vertical lines are warped. (part of circuit diagram displayed)
• Switches off by itself. after a few seconds.
• Blue picture. Flyback lines.
• No picture and sound sync. Picture goes black and white. No channel tuning in search.
• Switches off. No standby display. (309112 HANSEATIC repair tip)
• D803 heats up and is leaky. (part of circuit diagram displayed)
• Poor picture in band I and III (channels 2 and 4)
• No volume control by RC and front panel but OSD works. (+ extract of circuit diagram)
• There is a problem with mono/stereo identification when receiving a stereo transmission (PAL B/G).
• Picture is missing or video level reduction. (picture attached)
• No functions. (extract of circuit diagram attached)
• Distorted picture. Low contrast. Fault occurs intermittently. . (service info for HANSEATIC -309112)
• Black, horizontal lines in the picture.
• Poor linearity. at bottom.
• No HV.
• Intermittent picture roll. Then picture is negative and occasionally no picture.
• Noise in stand-by mode. (picture attached)
• Shuts down. intermittently.
• Intermittent loss of picture on changing channels, when the channel is changed the screen is blanked in the usual way and the new channel selection number is displayed, but the screen stays blank. (with circuit diagram extract)
• Frame output chip blown repeatedly. (309112 tip from HANSEATIC)
• OSD is green. Streaking in picture.
• Occasional popping noise from loudspeakers.
• Picture drifting after a certain time.
• At start up functions for a few mins then no reception. Functions normally via scart, all the functions are ok. No snow, no thermal tube noise, no reception. (with circuit diagram extract)
• No + B on the tuner.
• Standby LED on for 2 secs then switches off. No start up.
• No picture. on the right. No E/W correction.
• Picture runs through and is intermittently negative.
• Venetian blinds via AV1. Stripes when switching from one programme site to another.
• When warm no sound or video. VC still 31V on the tuner, RCU does not work. When cold ok again. IC001, 002, 003, 501 have been changed.
• No TXT. intermittently.
• Negative picture. intermittently.
• Reduced vertical size. at top. Flyback lines. (309112 tip from HANSEATIC)
• Intermittently not switching on from standby. When channel is selected standby light goes out and the set becomes apparently dead, although ht is still present. (+ extract of circuit diagram)
• Loss of picture after some time when switching channels. (+ extract of circuit diagram)
• Dark picture. after warm-up (intermittently).
• Red standby LED flashes constantly after switch on. If it is switched on with RC, LED goes out, but appliance does not start.
• Arcing.
• No vertical sync if picture has strong contrast.
• When TV switched off by ON/OFF switch, starts up again properly. If switched off by standby power supply cuts out. It takes 5 mins before it starts up again.
• Picture covered by a fine shimmering, black lines.
• PSU does not oscillate.
• Stuck in standby. LED blinks .
• Horizontal lines. (+ extract of circuit diagram)
• Dark picture. (extract of circuit diagram attached)
• The appliance intermittently drifts out of frequency. (309112 tip from HANSEATIC)
• No picture, no sound or fails when warm.
• Errors on vertical and horizontal picture.
• No brightness.
• Lines in picture. on the left half screen. (part of circuit diagram displayed) (309112 HANSEATIC repair tip)
• Vertical fault. Reduced vertical size. after a while.
• Raster bowed at the sides, with only the left hand quarter picture showing. (+ extract of circuit diagram) (309112 tips)
• Destroy of R807.
• Intermittent voltage at secondary PSU.
• No subtitles with the "Subtitles for the hard of hearing" decoder.
• Black picture, OSD OK, works fine after a while. No fault when cold.
• Bright red raster. (with circuit diagram extract)
• Station adjustment de-tunes intermittently, especially on program site 1.
• Poor focus.
• Black screen. Sound OK. Loud crackle in speakers at switch off with RC.
• Picture takes longer and longer to come on. Come on instantly if A1 control is turned up or down.
• Bright picture. Flyback lines. (part of circuit diagram displayed)
• Black screen. Displays "N" for programme. Via scart also.
• Picture rolls. Dark picture. intermittently.
• No channel available after changing channel. Ok when appliance cold. (picture attached)
• Flickering, horizontal black lines over the picture.
• Tripping.
• Several dry joints in HF section, on the main chassis in PSU, on line output stage and on power smoothing IC.
• Trips a few times, then no function.
• R624 is unsoldered. No obvious s/c. Primary HT is ok. (extract of circuit diagram attached)
• Circuit protectors PS601 and PS602 are open circuit.
• TV OK after a few days at rest then after 2 minutes power supply crackles and stops.
• No picture. LED flashes twice .
• Channels change suddenly or random OSD.
• Top of picture elongated. Bottom OK. (309112 tip from HANSEATIC)
• The PSU hiccups constantly. (extract of circuit diagram attached)
• Vertical lines have shifted zigzag to the left and right after warming up.
• Starts up. LED does not flash.
• Picture reduction at the bottom. (309112 tip from HANSEATIC)
• Appliance buzzes in standby. It is OK in operation.
• Picture hardly visible or too dark. Videotext and OSD OK.
• Jagged picture effect, the picture is broken into sawteeth or wriggles in a random way. Fault can be intermittent. (extract of circuit diagram attached)
• Poor frame linearity at start up and screen compressed in the middle for 5 minutes.
• Screen very white, scart is OK. Picture and sound ok in station search. After PB again completely white and no sound.
• No aerial, ok in scart. Search ok but does not stop. When cold only some sound for 3 or 4 secs.
• No power on AC. The majority of flyback transformers changed are not faulty.
• Power supply starts up but immediately switches off. (picture attached)
• No raster.
• Vertical roll. (309112 HANSEATIC repair tip)
• No horizontal synchronisation. No vertical synchronisation.
• White line. at bottom. (309112 tip from HANSEATIC)
• Picture reduced vertically and horizontally. The remaining 2/3 is black. Sound OK.
• Shuts down.
• Automatic channel search does not stop. Picture is black/white in operation.
• Line transformer starts up for 2 secs then stops. Power supply voltages ok. (with circuit diagram extract)
• Trips then attempts to start three times. (with circuit diagram extract) (HANSEATIC - 309112 information)
• Faint/intermittent picture. (+ extract of circuit diagram)
• Reduced vertical size. when cold.
• Dark/blurred/no picture. Smell of burning
• No picture. Sound ok. CRT heaters lit. (extract of circuit diagram attached)
• Small screen, only 10cm. (HANSEATIC - 309112 information)
• Black screen.
• No start-up from standby.
• No signal. via RF output.
• Impossible to memorize the channels, the other functions are normal. (extract of circuit diagram attached) (309112 HANSEATIC repair tip)
• Starts up at Power On then switches off immediately after. It takes 2 or 3 minutes to start up again.
• Lines in picture. (309112 tip from HANSEATIC)
• Hiccups after a few mins (picture folds over). Power supply voltage seems to collapse. Continues to do so, nothing seems to become hot. (309112 tip from HANSEATIC)
• Flickering colours. Flickering picture.
• R807 blows intermittently every couple of months on the G2 circuit.
• Standby LED lights up after a while. No switch on. (with circuit diagram extract)
• Drifs off tune, search tunes up but not down.
• The tuner drifts out of tune after working for 5 minutes.
• Poor linearity or geometry. Frame linearity fault. Usually only occurs in sets which are more than two years old. (picture attached)
• No or poor sync.
• Power supply does not start up, nor with lamp on 135V. (part of circuit diagram displayed) (309112 tip from HANSEATIC)
• Appliance failed with a violent flash on screen and ominous fizzing noise.
• Takes too long to start up. After approx. 10 min. starts up suddenly. (309112 tips)
• Picture drifts on all channels. (part of circuit diagram displayed)
• Intermittent drift.
• No picture. OSD OK .
• Dead. Standby LED flashes .
• At programming the stations brightness varies in the same time with blinking program display.
• Intermittently no picture, no sound at switch over. Picture and sound OK via AV.
• Buzz in audio. intermittently.
• 4A fuse blows on PSU.
• Volume and muting controls not responding but OSG show operation correctly.
• Power problem. D board burnt around R614 and R653. B+ line and vent holes must be intact, and at least 5mm of print on hv line to srt. (part of circuit diagram displayed)
• Noisy and distorted sound.
• Sometimes channels run though and remain in PAL B-G. Controls ok when tuning. (extract of circuit diagram attached)
• Spontaneously goes to AV-2.
• Switches on, EHT present momentarily then set switches off. (with circuit diagram extract)
• Black picture with programme indication after approx 15 mins. Snow briefly when switched from TXT to TV.
• All (-) keys inoperative. (service info for HANSEATIC -309112)
• Picture ok on switch on but no text after a few minutes. Picture goes to black raster. (part of circuit diagram displayed) (HANSEATIC - 309112 information)
• EHT rises then falls, appliance goes dead.
• No picture and sound or picture is negative.
• Loss of power supply.
• No power supply on jungle-IC, no drive pulses on the line transistor.
• No NICAM.
• The appliance makes a noise during standby. (+ extract of circuit diagram)
• Incorrect tuning or goes to muting.
• No reception after approx. 5 mins after switch over. Search is on UHF end. Program ok at switch on. (309112 tips)
• Line output transistor fails intermittently. (with circuit diagram extract)
• Reduced vertical and horizontal size.
• Intermittent loss of video preceded by a broken up negative picture.
• Functions correctly for 10-15 mins, then at channel change screen becomes black and sound is absent. OK via scart.
• No synchronisation.
• Shuts down (after a few seconds).
• No power supply (+290V is present).
• Blank screen. (HANSEATIC - 309112 information)
• Vertical fault.
• Vertical collapse. (extract of circuit diagram attached)
• Picture and sound fail. (part of circuit diagram displayed)
• Poor linearity. at top.
• Picture fades out but comes back slowly with auto grey scale correction visible if hit.
• Set stuck on channel 11 and no response to either the front controls or the remote control unit.
• Low contrast. when cold. Focus problems.
• Green picture. Retrace lines. (309112 tip from HANSEATIC)
• Various dry joints in the HF unit, on the base chassis in the PSU, of the line output stage, on the voltage stabilising ICs.
• O/W is defective.
• Channels slightly drift off tune after short time, then noise in sound and no colour.
• Picture size incorrect. Change in size of raster. (extract of circuit diagram attached)
• Intermittent loss of picture/sound. Fault could be produced when main panel flexed. (part of circuit diagram displayed)
• After a while, picture becomes dark and dragged (like when it is out of adjustment). (with circuit diagram extract)
• Horizontal jitter. Picture rolls. intermittently (after warm-up).
• No RC functions. (with circuit diagram extract)
• Dark picture. OSD and TXT OK .
• Tuner drifts after 10 mins and then fails after a short time.
• Dead. Trips. (part of circuit diagram displayed)
• Loss of picture and/or sync. (with circuit diagram extract)
• Does not decode Canal Plus on scart 1.
• Shuts down. after a few seconds. No LED lit.
• Poor tuning at switch on. Tuning OK after approx 30 secs. (309112 tip from HANSEATIC)
• Tuner IF AGC fault. Distorted picture unable to lock. (part of circuit diagram displayed)
• Reduced vertical deflection. Poor vertical linearity.
• Distorted picture.
• Trips once then dies.
• Red picture. Dark screen. after a while. (309112 HANSEATIC repair tip)
• Switches to PAL after a long time or no sound and no RC.
• New type of stand-off resistor.
• Flyback lines. at top. (picture attached)
• Switches off by itself. in standby (after a while).
• Screen flashes with smearing then eventually goes blank. (picture attached)
• E/W fault. (+ extract of circuit diagram) (309112 tips)
• No picture. R807 (1K/1W) heats up.
• No MONO audio.
• No oscillation at start up.
• Synchronisation is poor, field roll and drifting AFC. (picture attached)
• Trips. at start-up.
• Programming the basic values after exchanging the memory IC SDA 2546 (309112 HANSEATIC repair tip)
• No picture. (with circuit diagram extract) (309112 HANSEATIC repair tip)
• Dark picture. Program display available. No reaction either to RC and to control panel.
• Horizontal line or black band at upper picture part. Distorted vertical deflection.
• Drifting after a certain time.
• No picture. intermittently. (picture attached)
• Picture too small. at top.
• Picture is distorted when brightness is adjusted. (Zoom effect).
• When changing channels the picture goes blank. (extract of circuit diagram attached)
• Horizontal line or black stripe in upper part of picture. Distorted vertical deflection.
• When high brightness signal is received through the front Y/C socket, field synchronisation becomes unstable.
• No colour (intermittently).
• Resistor, diode, line transformer have been changed. TV functions for 5 mins, picture gradually turns red then nothing. When picture present, no sound. Resistor has burnt.
• Picture fails or is distorted intermittently. Via scart OK. Knock sensitive.
• No start-up (intermittently).
• Smearing in picture. Low brightness. (+ extract of circuit diagram)
• White screen. Scart OK. At channel search, picture and sound are OK. After storing, picture white again and no sound.
• No horizontal deflection. (picture attached)
• Service information. Details of nicam adaptable sets.
• Picture disappears leaving only channel number. (with circuit diagram extract) (309112 tip from HANSEATIC)
• No operating voltage in the vertical stage.
• No G2 power supply.
• Flyback lines and preset brightness level is wrong. (with circuit diagram extract)
• Green component of picture varies or none at all. (part of circuit diagram displayed)
• Line in picture, at 1/3 from top of screen.
• Burning smell. (picture attached) (309112 tip from HANSEATIC)
• Line output transistor fails repeatedly. (extract of circuit diagram attached)
• Horizontal jitter in picture (twitched picture) and sometimes vertical sync dropout after warming up.
• Chopper transistor S/C. (part of circuit diagram displayed)
• Brightness varies. Flyback lines. (extract of circuit diagram attached)
• No picture and no sound. Red LED lights up when changing channel. Noise from appliance when switching TV off.
• No picture. intermittently. Intermittent audio.
• TXT switch-over is defective. Only TXT characters, or intermittently only TV picture available.
• G2 voltage missing.
• Scart plug 1 does not work. Neutral screen with symbol 1 displayed on screen during Canal Plus or when VCR is in PB. (309112 tips)
• M58655P blows at switch on. 5V ok, -33V slight pollution on pin 2, ok on other side of R062. CLOCK and DATA ok.
• Intercarrier hum by bright picture. (309112 tips)
• One colour cuts out or picture gets darker.
• Transistor (2SD1548) in power supply S/C.
• No functions. Standby LED lit .
• No functions. after lightning strike. (part of circuit diagram displayed)
• When the appliance has operated for a certain time a slight hum can be heard from the speaker. The volume varies on both mono and stereo. (309112 HANSEATIC repair tip)
• Picture rolls. Poor picture. (picture attached)
• Defective On/Off LED. Loss of LED from standby. Cannot be started up again.
• Picture appears slowly. Audio OK .
• Impossible to receive L standard without thermal tube noise. B/G standard is received but search does not stop.
• Fails completely or switches to stand-by and tries to start intermittently.
• Ocassionally no signal on screen. No thermal tube noise, no sound. Channel indication ok. In UHF search correct channel obtained but it disappears again after it has been stored.
• No picture and no sound. Channel LED lights up. Brightness present when pressing control key. Pattern OK via scart. It sometimes re-starts. No sensitive to shock.
• No audio. No picture. (with circuit diagram extract) (309112 tips)
• Flyback lines through a weak picture with too much brightness.
• Switches off by itself.
• Line tearing. (picture attached)
• Goes to black and white, sound shifts and groans, similar to tuner drift.
• Stuck in standby. (part of circuit diagram displayed)
• Occasionally picture is distorted and there is no contrast. (extract of circuit diagram attached)
• No synchronisation. intermittently. (picture attached)
• No picture (intermittently). (+ extract of circuit diagram)
• Negative picture when cold and/or lines on all channels.
• Dead. after lightning strike.
• No video signal on CRT for 3-4 mins at start up from warm or cold. Picture appears with flyback lines. (with circuit diagram extract) (309112 tip from HANSEATIC)
• After pressing main switch, PSU makes 4 attempts to start and then stops.
• PSU chirps. LEDs flash.
• Power supply trips approx 3 times, then goes dead.
• New program no. is displayed after program switch-over, but no reception, not even at scart socket output.
• Intermittently dead. (with circuit diagram extract)
• Excessive horizontal size. Pincushion distortion.
• Right side of picture is dark. Pincushion fault on the left.
• Dead. Comes on in standby when switched on from socket.