809346 / BAUR [TV]

• Hums softly. (picture attached)
• Dead. At switch on the stand by LED flashes.
• Dead. Low level buzz from loudspeaker. (extract of circuit diagram attached)
• Loud chriping after switch on. It becomes lower after a short time.
• Right side of picture discoloured.
• Error codes.
• Modification at line transformer position 5530. (part of circuit diagram displayed)
• No frame or short frame. (extract of circuit diagram attached)
• The tone (sound) tunes well, but the volume cannot be raised.
• Poor synchronisation. (with circuit diagram extract)
• Dark picture. Audio OK .
• The remote control only controls the volume and sound-stop. No function with On-Off and channel change-over, although the display for the operation flickers.
• High voltage transistor defective after a while.
• Chopper inoperative. (picture attached)
• Line tearing and rope effect.
• Dead. Only hum from speakers. (picture attached)
• After operating for one hour it is no longer possible to switch over programmes not even from the front panel. Appliance must be switched on and off then it is possible to change channels.
• Blue picture. Coloured lines.
• No switch on. Low noise on sound. (part of circuit diagram displayed)
• Will not tune, drifts, colour disappears or interference on a certain channel. (e.g. channel 5 and 59)
• No colour in OSD.
• Hotel Mode activates by itself. (picture attached)
• Dead set. Tries to start.
• Sometimes when turned on, green screen only with flyback lines, at other times no tuning and channel will not change. (picture attached)
• During picture changes sometimes a volume increase (plop) is heard. (extract of circuit diagram attached)
• Drive for high voltage missing. (part of circuit diagram displayed)
• No or intermittent start-up. (+ extract of circuit diagram)
• No picture, sound ok but on turning up A1 control, frame collapse. (extract of circuit diagram attached) (809346 BAUR repair tip)
• Switches to standby. (picture attached)
• Excessive vertical size.
• No function. When switching on with RC, standby LED lights up. (+ extract of circuit diagram)
• Replacing the EAROM. (extract of circuit diagram attached)
• Line output transistor fails repeatedly. (part of circuit diagram displayed)
• Poor synchronisation. when cold. (with circuit diagram extract)
• Comes on in standby. When program button pressed standby lamp blinks then goes off.
• Does not switch on, standby LED OK.
• Vertical amplitude cannot be fully adjusted, TXT lines can be seen. (with circuit diagram extract)
• Dead. Strange noises from PSU/ line output transformer. (+ extract of circuit diagram)
• Set does not retune or program etc
• Memory loss. (with circuit diagram extract)
• Dim picture with Hanover bars.
• Line output transistor TR7528 fails at switch on.
• Store lock on the appliance. (809346 tip from BAUR)
• Set dead with just 5V on the 95V line. Standby LED is on but set won't start. (+ extract of circuit diagram)
• No line output.
• Connection of the loop system to the TV.
• Noise in audio.
• Rolling or jittering picture. (part of circuit diagram displayed)
• Whistle.
• Lines on picture after approx one hour. It consists of a band of bright white lines about two inches wide. (part of circuit diagram displayed)
• No start-up. when cold. (extract of circuit diagram attached) (809346 tips)
• Stops at start up. (part of circuit diagram displayed)
• Bright flash on screen. No picture or sound. (part of circuit diagram displayed)
• No voltage from PSU, computer does not work. (picture attached)
• Becomes defective immediately after switch on. (809346 BAUR repair tip)
• Vertical size varies. intermittently.
• Dead. (extract of circuit diagram attached)
• No start-up. intermittently (when cold). (picture attached)
• No sound or picture. Low hum from speaker. (with circuit diagram extract)
• Tuning drifts. only on certain channels (after a while).
• Slight foldover at upper part of picture if appliance is switched on when cold. Fault disappears after few minutes. (extract of circuit diagram attached)
• No start up, just a buzzing noise in speakers. (picture attached)
• Picture shifts. (with circuit diagram extract)
• Does not stop on stations.
• Stuck in standby. (part of circuit diagram displayed)
• No output from the chopper power supply which uses a junction FET, whose gate and source are at 12V while 300V is present at the drain. (picture attached)
• Vertical vibration in cold condition of set.
• Line output stage TS7528 is defective. (picture attached)
• Line out of phase. Black band in centre of screen. No colour.
• Low audio. (extract of circuit diagram attached)
• Very slight vertical foldover with interferences similar to EHT arcing, especially on very white scenes.
• Service manual correction. (picture attached)
• No function. Motorboating from PSU. TV starts up randomly. Intermittent fault.
• Defective IC7103 SV-production. (+ extract of circuit diagram)
• Random breakdown of line output transistor. (with circuit diagram extract)
• Field foldover at switch on from cold. Effect disappears when appliance warms up. (+ extract of circuit diagram)
• Turns on automatically. No RC or front panel controls.
• After working normally for a while the TV blocks in any position. The functions do not work.
• Picture is faint with hanover bars. (extract of circuit diagram attached)
• No switch on after activating mains switch. Whistling noise. (part of circuit diagram displayed)
• Tripping. (extract of circuit diagram attached)
• No picture and sound intermittently after switch-on. Buzz sound from speakers. (+ extract of circuit diagram)
• Line tearing, especially with bright scences. (part of circuit diagram displayed)
• Only half a picture. (part of circuit diagram displayed)
• No HV.
• Picture is mostly green with flyback lines after 10 secs from switch on.
• Picture displays lines and strange foldover effect at centre. (service info for BAUR -809346)
• Picture appears slowly.
• The following production changes were introduced to prevent the set coming on in the store lock mode when switched on from standby. (with circuit diagram extract)
• The picture is slightly yellow, flyback lines. Slightly noisy, no own recording possible.
• Slow start-up.
• Reduced horizontal size. (+ extract of circuit diagram)
• Defective purity.
• The removal of leaded diodes. (with circuit diagram extract)
• Picture only in two bars in upper screen section, the rest is dark. (+ extract of circuit diagram)
• Blank raster. No audio. after a while. (extract of circuit diagram attached) (BAUR - 809346 information)
• Green picture. (part of circuit diagram displayed)
• Intermittently no picture and sound at switch on. Buzz from speaker. (extract of circuit diagram attached)
• No picture (when cold).
• Colour flickers. No colour. after a while. (picture attached)
• Wavy picture. on the right.
• Stored channels drift off tune briefly after switch on. Crackle in sound.
• Doesn't tune stations correctly. When cold, crossed lines on low UHF channels. (extract of circuit diagram attached) (809346 BAUR repair tip)
• No picture and sound. Low hum intermittently, no function.
• Reluctant to start from cold (extract of circuit diagram attached)
• Green screen with flyback lines. Green oscillations. Noise as if HV leaky on picture tube base. (picture attached)
• No picture. Audio OK . (809346 BAUR repair tip)
• Spurious nonsense OSG. Goes to standby after 0.5-2hrs. Loss of tuning.
• +B very high. (picture attached) (809346 tips)
• No function. Standby-LED lights up. Appliance switches on but no picture or sound.
• Tuning menu can not be called. All other functions OK.
• Initial volume-level is higher than the maximum Hotel-Mode setting. (809346 BAUR repair tip)
• Stuck in hotel mode.
• Dead. Only standby-LED works. Responds to TURN ON command, but no image and no sound.
• No colour and vertical black bar across screen.
• Hotel mode.
• Set comes on in store lock mode. (+ extract of circuit diagram)
• Poor reproduction of copy protected tapes. (with circuit diagram extract)
• No tuning. No channel lock. (+ extract of circuit diagram)
• CRT types.
• Volume can't be tuned down. No tuning with RC. (+ extract of circuit diagram)
• Line output stage does not start up. (part of circuit diagram displayed)
• To remove store/lock.
• Green picture after few hours, intermittently fault disappears for short while when switching from a station to another. Strange characters in OSD.
• Picture fails for a short time. (picture attached)
• Whistling from PSU. (with circuit diagram extract)
• Blown chopper. (part of circuit diagram displayed)
• Buzzing sound then switches off.
• Line chirps intermittently. Appliance does not start. Only hum from loudspeakers.
• No channel search. No OSD. (extract of circuit diagram attached)
• Poor sound, cannot be adjusted louder. When adjusting, sound cuts out. (extract of circuit diagram attached) (809346 tips)
• Does not start up at once from cold. (809346 tip from BAUR)
• No tuning possible, F2 appears on bottom of picture and S1 on top.
• Set won't tune to high frequency channels and lower frequency channels appear to be higher. (part of circuit diagram displayed)
• No functions. Standby LED flashes. Relay switches to ON.
• Squealing from PSU.
• U743 tuner replacement. (picture attached)
• Green picture with retrace lines. After a few restarts picture OK.
• No switch on. Weak whistling noise from PSU. LED is OFF.
• Adjustment of +95V. (extract of circuit diagram attached)
• Dark picture.
• Humming, motor noise and other unusual noises. Normal picture.
• Picture separating line appears. Whistling.
• No start-up. Buzzing from speakers and working noise of PSU.
• No tuning. Impossible to change analog control adjustments (brightness, sound, etc.). (+ extract of circuit diagram)
• Blank raster. OSD OK .
• Line tearing. on lower half screen. (with circuit diagram extract)
• No line output stage. (part of circuit diagram displayed)
• No picture, only squeaks for a short time at switch on then no more functions.
• Trips. (extract of circuit diagram attached) (BAUR - 809346 information)
• To improve performance with prerecorded cassettes. (with circuit diagram extract)
• Horizontal white line.
• Green screen with flyback line. No picture. OSD OK. (service info for BAUR -809346)
• Does not regulate +95V. (809346 BAUR repair tip)
• Bright flash on screen and no picture or sound after a few minutes. (+ extract of circuit diagram) (BAUR - 809346 information)
• Lines across top of picture about 8" in first 100 lines. (+ extract of circuit diagram)
• Two lines going around. (part of circuit diagram displayed)
• No picture. No sound. Purring sound in loudspeaker. (part of circuit diagram displayed)
• The fuse and the bridge diodes in the power supply blow.
• Control micro processors.
• LED flashes once, then gurgles. (with circuit diagram extract)
• Streaks in picture. Picture pulls and rolls intermittently.
• Difficult startup. Rattling sound from line output trafo. (809346 tips)
• Skips channels during tuning. (with circuit diagram extract)
• Does not start. Slight buzzing in loudspeaker.
• No functions. Sound buzzes in loudspeaker. (with circuit diagram extract)
• No picture or sound but RCU works correctly. LED flashes when the handset is tried. (with circuit diagram extract)
• No transmitters to adjust and the sound is not controllable.
• 10V on 95V line. (extract of circuit diagram attached)
• PSU does not start up, if appliance was switched off for a day. Appliance functions after short switch on/off. (part of circuit diagram displayed)
• Programme channel search cannot be called up.
• PSU switches off with load at U95V. (+ extract of circuit diagram)
• No start-up. intermittently.
• Error messages indicated by front display flashing. (extract of circuit diagram attached)
• Searches for channels continuously. (picture attached)
• PSU check.
• Green screen and at other times no tuning. (part of circuit diagram displayed)
• No SOP supply. (extract of circuit diagram attached)
• No horizontal synchronisation. (picture attached)
• Appliance is dead with standby LED flashing after a few seconds. (picture attached)
• No start up. No standby. Attempts to start up, but fails. (BAUR - 809346 information)
• No start up from cold and humming.
• Print with linearity coil pos. 5800.
• White screen with flyback lines. Excessive brightness which increases until PSU switches to protection mode. (+ extract of circuit diagram)
• No colour. (part of circuit diagram displayed)
• Dead due to action of over voltage protection circuit.
• Interference in audio. Interference in picture. (+ extract of circuit diagram)
• Microprocessor screening plate. (extract of circuit diagram attached)
• After replacement of the line output transistor BUT12, picture with trapezoid effect, BUT12 overheats and goes defective again. (with circuit diagram extract)
• Display goes to F1 a few seconds after switching the set on.
• Power supply fault finding. (part of circuit diagram displayed)
• Tuning drifts. only on certain channels.
• Height excessive. Defective linearity. Field blanking. (+ extract of circuit diagram)
• Picture shifted horizontally. (picture attached)
• Failures in the power supply. (with circuit diagram extract)
• Cannot change tuning or stored settings. (+ extract of circuit diagram)
• Dead, very slight whistle from PSU.
• Picture passes out in the centre.
• Green picture. after warm-up. Lines in picture. after warm-up. Does not change channels. (service info for BAUR -809346)
• No function, starts up from standby, then goes out. (BAUR - 809346 information)
• Red picture. Flyback lines.
• Low 5V to micro chip. (extract of circuit diagram attached)
• Dead. Low frequency noise on sound.
• Modification to line transformer pos. 5530.
• 6613 type change. (part of circuit diagram displayed)
• Set goes accidentally into hotel mode.
• New IR receiver.
• Line output stage only starts up for a short time. (extract of circuit diagram attached)
• After switching on the CTV "EXT...1.2.3..." appears on the screen. (809346 tip from BAUR)
• Does not switch on. LED is lit in standby. If appliance is switched on with RC, LED switches off.
• Intermittent colour.
• No power with abnormal sound. (part of circuit diagram displayed)
• Hazy flickering picture at top. (with circuit diagram extract)
• No function at switch on from standby. Switches to LOCK (hotel) mode. (extract of circuit diagram attached) (809346 BAUR repair tip)
• No functions. when cold.
• Search jumps on UHF. (part of circuit diagram displayed)
• Line output transistor running hot. (with circuit diagram extract)
• Noise in sound. Mute does not function.
• No OSD. Picture OK .
• No standby, humming and standby LED blinks.
• Right hand side of screen has a line.
• Sound returns gradually after channel change. (picture attached)
• Line transistor 7528 blows within 1 sec. (+ extract of circuit diagram)
• Microcomputers and screening plate.
• Description of SMPS. (with circuit diagram extract)
• Stations won't change. Picture and sound OK. Other functions OK. (BAUR - 809346 information)
• White unmodulated raster. Picture missing. (part of circuit diagram displayed)
• Trips. at start-up (intermittently). (with circuit diagram extract)
• No tuning. (with circuit diagram extract)
• No start-up. Standby LED flashes .
• Line output stage does not function.
• Does not start up. Light buzz from loudspeaker. Standby LED produces one brief blink.
• Loosing colour during play-back of a video tape. (part of circuit diagram displayed)
• Line down middle of screen. (with circuit diagram extract)
• Does not shut down (when cold). (service info for BAUR -809346)
• New infra red receiver.
• Buzzing from PSU. when cold. (extract of circuit diagram attached)
• Intermittently dead. (picture attached)
• No picture. No audio. (part of circuit diagram displayed)
• Fizzling sound from speakers at start-up and intermittently picture jagged.
• Smeary, washed out picture with bent verticals. (picture attached)
• Colour disappears with VCR-scan (picture search). (picture attached)
• Correction to service manual LOT winding.
• Stops working every 2 or 3 hrs. Only starts again after switching off and on again.
• Picture is poor with rippling on verticals. (extract of circuit diagram attached)
• No tuning bar when install button pressed and set not in hotel mode. (+ extract of circuit diagram)
• Excessive HV. after a while. (service info for BAUR -809346)
• Local controls inoperative.
• Green raster. Faint picture. Flyback lines.
• Cannot be programmed and search does not function. Only limited volume adjustable.
• Vertical roll. (picture attached)
• Appliance can not be programmed. Search does not function. Only limited volume control.
• Intermittent audio and picture. (extract of circuit diagram attached)
• Blank raster. Flyback lines. (+ extract of circuit diagram)
• Tuning drift, when it is hot the tuning is lost on channel change.
• Vertical line. on the right half screen. (picture attached)
• Vertical collapse. (part of circuit diagram displayed)
• Appliance does not function with standby light flashing.
• No picture. No sound. Switching on and off from Standby OK. (809346 tips)
• No voltage from PSU. (+ extract of circuit diagram)
• "Store" key does not work. (with circuit diagram extract)
• Comes on for a short time.
• Dim picture with Hanover bars visible. (+ extract of circuit diagram)
• No tuning, no remote volume control. (picture attached)
• Excessive horizontal size.
• No sound or raster. The 95V HT supply is present at the line output stage but there is no line drive. (extract of circuit diagram attached)
• The switched-mode power supply cannot be loaded.
• Reduced vertical size. at top.
• Field collapse normally with blank picture. (+ extract of circuit diagram)
• When switching on, only a 10cm stripe on top of screen, the rest of screen is black with flyback lines. After a while, stripe becomes wider. (with circuit diagram extract)
• Programs and PP-settings cannot be changed.
• Only some programs with snowy picture can be tuned and on band 1 missing some programs. (picture attached)
• Switches off by itself. after a while. (with circuit diagram extract)
• Intermittently dead. after start-up.
• +9V supply modification. (with circuit diagram extract)
• Blank or green raster. Flyback lines. Faint picture or normal picture. (extract of circuit diagram attached)
• No picture. (extract of circuit diagram attached) (809346 BAUR repair tip)
• Enable Hotel mode. Disable hotel mode.
• Memory content dropout at positions 4 and 5.
• No picture. TXT OK . (extract of circuit diagram attached) (809346 tips)
• No functions. Slow start-up. (extract of circuit diagram attached) (809346 BAUR repair tip)
• Slow start up of power supply. (+ extract of circuit diagram)
• Volume change with great fluctuations in brightness. (with circuit diagram extract)
• Dead. Low hum.
• Power supply does not oscillate. (extract of circuit diagram attached)
• No functions, hum in loudspeakers. (part of circuit diagram displayed)
• Reluctant to start up from cold.
• Standby just pulsing.
• Frame has shifted sideways. Appliance whistles and does not oscillate correctly. (extract of circuit diagram attached)
• No functions. after start-up (intermittently).
• Sound goes to max. intermittently and HT varies. (extract of circuit diagram attached)
• No vertical deflection. (picture attached)
• Intermittently narrow picture, but corrects itself shortly after.
• Picture centering has shifted horizontally. No OSD. (809346 tips)
• Intermittent colour and intermittent dark vertical bar on picture.
• Buzz in audio (intermittently). (with circuit diagram extract)
• Intermittent channel drift in UHF. Channel search OK. VHF OK.
• No HT from chopper circuit. (picture attached)
• Programming unoperational. Limited sound adjustment possible.
• Excessive brightness.
• Skips channels during tuning. only on certain channels.
• Intermittent green picture, channels cannot be programmed. (part of circuit diagram displayed)
• No sound. Picture OK. After a short time TV stops. High frequency noise from PSU. (with circuit diagram extract)
• Connection of a loop system to the TV.
• No function. Standby LED flashes briefly. (with circuit diagram extract)
• Unregulated power supply. Pulsating picture and surging sound. (extract of circuit diagram attached) (BAUR - 809346 information)
• Dead with whistling noise coming from power supply. (with circuit diagram extract)
• Programme tuning difficulty, stations shifted on tuning bar. (part of circuit diagram displayed)
• SOPS defective. (+ extract of circuit diagram)
• No power supply start up in loaded condition (eg. with lamp).
• Bright picture. Flyback lines.
• No start-up. (extract of circuit diagram attached)
• Line output transistor becomes warm and in the course of time it becomes defective. (+ extract of circuit diagram)
• Secondary main power supply OK except +9V at 5.8V
• Dead. Power LED is OFF (ON in standby). Hissing from PSU.
• Menu rolling. (with circuit diagram extract)
• Picture shifted to the right. (picture attached)
• Enable Hotel mode.
• The TV cannot hold the picture.
• Replacement of surface mounted diode 6637. (picture attached)
• Enter service mode.
• Buzz in audio. No picture.
• Production change to line drive. (picture attached)
• No picture. OSD OK .
• No line start up; +95 available; +9V is about 4.5V. (with circuit diagram extract)
• No operation.
• Slow hiccup (picture attached)
• Intermittent destruction of line o/p transistor. (picture attached)
• Appliance will not switch on at times, but hums in the power supply section.
• No tuning. only on certain channels.
• Standby LED lights up and switches off at power on. Appliance will not start up.
• No regulation. (+ extract of circuit diagram)
• No freeze frame or intermittent freeze frame; no sound. (part of circuit diagram displayed)
• Sound increases intermittently or "pops", especially during bright scenes. (picture attached)
• Protection device (thyristor THY6641) is triggered at switch on. (with circuit diagram extract)
• No +9V, line output stage is OK. (part of circuit diagram displayed)
• Settings do not stay in position.
• How to reset microprocessor.
• LED does not flash. Slight buzz in appliance. (+ extract of circuit diagram)
• Tuning drifts. (with circuit diagram extract)
• Quick hiccup. (part of circuit diagram displayed)
• Picture shifted to the left. intermittently. Line tearing. intermittently. (picture attached)
• Volume varies. depending on picture content. (part of circuit diagram displayed)
• Occasionally appliance does not switch on from standby. No further functions are possible.