809066 / BAUR [TV]

• Limited contrast control range. (extract of circuit diagram attached)
• Certain channels drop out in UHF range.
• Video signal and sound are missing, raster is blank. (+ extract of circuit diagram)
• No sound and "F7" on OSD, OK after 20 mins. (service info for BAUR -809066)
• Upper part of picture consists of a few lines. (part of circuit diagram displayed)
• Tripping (intermittently).
• Crackling/bubbling sound from speaker when switched to standby after a short time. (extract of circuit diagram attached)
• Sizzling/picture distortion.
• No picture. Audio OK . (part of circuit diagram displayed)
• Picture jitters.
• After switching on the appliance functions normally. If colour, brightness or volume setting is selected with the remote control then apart from switching over channels and switching the appliance on and off no function is possible.
• Popping noise from speakers, only at switch on.
• Light spot after switch off. (with circuit diagram extract)
• No picture content for the first ten minutes. White picture with flybacks lines.
• Intermittently strange signs in picture. No function of RC. (+ extract of circuit diagram)
• The appliance will not tune stations higher than 55, the tuning varies. (picture attached)
• No sound, F7 error code LED flashes. (with circuit diagram extract)
• No signal to the collector BUT11AF. (picture attached)
• The BUT11AF is destroyed after some time. (+ extract of circuit diagram)
• Intermittently sound mutes and OSG are jumbled.
• Random failure of the BUT11AF chopper transistor. (picture attached)
• Cycles on/off (intermittently).
• Picture and sound are missing, LED flashes at switch on, ok in standby.
• Does not stop when sweep tuning. Drifts if manually tuned. (extract of circuit diagram attached)
• Loss of sound. STEREO/MONO indication lit.
• Dead. LED blinks . (809066 BAUR repair tip)
• Remote V/S. Green LED goes red. Spurious nonsense on-screen graphics. Goes to standby after running for 30 mins - 2 hrs. Loss of tuning.
• No picture. AV OK . (extract of circuit diagram attached)
• Picture rolls and bounces in the first 5 mins. An approx. 5cm wide vertical line on the left picture edge. After 5 mins. of operation everything OK.
• Teletext faults. Set very intermittently shows error F7. (extract of circuit diagram attached)
• After operating for approx 1.5 hours the appliance switches to search mode by itself.
• Spot lights after switching off. (extract of circuit diagram attached)
• Switches to program 1. Fault occurs especially at greater brightness. The switch over occurs after vertical line tearing (e.g. in convergence test pattern) or after horizontal lines in normal pictures.
• No audio. No picture. (picture attached)
• Blank raster. TXT OK . (part of circuit diagram displayed)
• Power supply defective.
• No teletext. No F7 error. Can still change channels in text mode.
• Not operational. F7 in picture.
• Blank raster. No sound. No OSD. RC LED does not flash when a command is transmitted. (part of circuit diagram displayed)
• Reduced horizontal size. (809066 tip from BAUR)
• Vertical striations and shading on left hand side of picture accompanied by smearing. Intermittent loss of line lock.
• Jumps to channel 1 or switches off itself. (+ extract of circuit diagram)
• No TXT. No picture. after a while.
• No synchronisation. when cold. (picture attached)
• No tuning. only on certain channels.
• No colour. (extract of circuit diagram attached)
• No functions. after a few minutes.
• Page 811 appears by itself and is blocked.
• Line tearing at vertical lines from top to bottom in test picture.
• Switches back to program 1.
• No function. Rapid loud popping noise with synchronised standby LED flashing.
• No synchronisation (intermittently). (BAUR - 809066 information)
• Low HV. intermittently. (part of circuit diagram displayed)
• Tuning drifts. (part of circuit diagram displayed)
• PSU pulsates.
• No blue. (part of circuit diagram displayed)
• Line output transistor 7545 (BUT11AF) fails after a while.
• No audio (intermittently). (part of circuit diagram displayed)
• Over-voltage circuit active. (extract of circuit diagram attached) (BAUR - 809066 information)
• Missing 95V.
• No sound at switch on. Picture is present. "F7" displayed on screen. No RC. Everything OK when warm.
• Teletext faults. Page 811 appears spontaneously. (picture attached) (809066 tips)
• Shutsdown with motorboating noise after 10 minutes.
• No tuning. No display. No RC functions. (+ extract of circuit diagram)
• "F7" displayed on OSD, LED flashes and user controls inoperative.
• In TXT, takes about 60 secs to build up page. Page never quite fills up completely with data, thus looking confusing.
• Reduced vertical size. (+ extract of circuit diagram)
• Shape of picture is wrong. The fault is more evident in text mode. Also thin black horizontal lines.
• Dead. (part of circuit diagram displayed)
• Blue picture. (with circuit diagram extract)
• No line oscillation.
• Intermittent fuse blowing, blows BUT11AF. (with circuit diagram extract)
• For 5 minutes zigzag edges in the picture. (part of circuit diagram displayed)
• Black lines in picture, then no picture.
• Vertical shaking. No synchronisation.
• The power supply gurgles if the mains voltage is weak. (extract of circuit diagram attached)
• Vertical streaks at the left of the picture which disappear after a while. (with circuit diagram extract)
• BUT11AF is defective and is destroyed at each start up. (extract of circuit diagram attached) (809066 tip from BAUR)
• Black dots in the bright-white spots.
• No picture. No sound. No RC function. LED lights up green.
• No tuning.
• No red in the picture with an RGB input.
• Codes F4 or F7 with no signals and LED orange.
• F5 Error on sets with satellite RX. (BAUR - 809066 information)
• Poor functioning of RC receiver at switch on from standby. RC must be close to IR receiver.
• Occasional picture foldover at the top on certain programas when changing picture or channel.
• Picture only 3cms high.
• Rattle in sound. (picture attached)
• If appliance is switched to standby when cold, it starts pumping. Other functions OK. (service info for BAUR -809066)
• Pulsing, rolling with jagged white line at top of screen.
• When appliance is switched on it jumps to channel 3 then when the appliance is warm it shuts down. (part of circuit diagram displayed)
• Only part picture can be seen, sound OK. (part of circuit diagram displayed)
• Useful voltages to check on satellite RX board
• Horizontally torn picture.
• Chopper transistor (BUT11AF) S/C. (+ extract of circuit diagram)
• Flashover on picture tube print. (picture attached) (service info for BAUR -809066)
• Shuts down. after a while.
• Breakdown of T7625. (+ extract of circuit diagram)
• Only noise, otherwise no functions or display.
• Intermittently displaying error code F7.
• Tripping. at start-up.
• No channel storing.
• "F7" on OSD. No audio and stuck on channel. OK after 20 mins.
• Does not switch to standby. (809066 tips)
• Does not function well. Wrong characters on screen. (extract of circuit diagram attached)
• Stops when warm. Display shows F7. (809066 tips)
• No line timebase operation. (picture attached)
• The "LE" voltage is less than 100V. (extract of circuit diagram attached)
• Trips with power LED flashing and speaker popping in unison. (extract of circuit diagram attached) (service info for BAUR -809066)
• Faulty OSD.
• Flyback lines. at top. (BAUR - 809066 information)
• The voltage of +95V line alters. (+ extract of circuit diagram)
• Ragged picture. Dim display. (picture attached)
• Tuning drift or no signals though the green bar moves. (picture attached)
• No start-up. Green LED flashes .
• Corrugated verticals. (with circuit diagram extract) (809066 tip from BAUR)
• Faulty TXT.
• Appliance works perfectly for a few days and then all the components burn out on the primary side of the switching circuit. (+ extract of circuit diagram)
• U743 tuner replacement.
• PSU failure.
• No picture. Blank raster. (picture attached)
• Dark picture. (+ extract of circuit diagram)
• The output transistor of the power supply is defective. BUT11AF, BUT18AF or 2SC3973B. (extract of circuit diagram attached)
• Appliance stuck on programme "1". OSD shows F7.
• No horizontal deflection. Standby LED flashes .
• Blocks and wrong OSD indication. (809066 BAUR repair tip)
• Does not go to standby via RC; LED on set changes from green to orange (should be red).
• Wide oscillation in the weak field on the right hand side. (with circuit diagram extract)
• Strange signs in picture or text. EXT 1 and EXT 2.
• After approx 30 mins faulty OSD and no function. No start-up furthermore.
• No switch to AV. EXT1 or EXT2.
• Erratic clock.
• Blows fuse. (809066 tip from BAUR)
• White screen. (extract of circuit diagram attached)
• Low contrast. (+ extract of circuit diagram)
• Microprocessor/eprom screening plate.
• No reaction from front controls and RC. Also no switchover possible to HF.
• Black horizontal lines in picture.
• Only programme 6 at switch on. F7 on display. No control. No function of keys or RC. (+ extract of circuit diagram)
• Cycles on/off.
• Fine, dark horizontal lines when warm.
• No vertical deflection. (extract of circuit diagram attached)
• No focus.
• Line lock is incorrect. (BAUR - 809066 information)
• Memory loss. (part of circuit diagram displayed) (809066 BAUR repair tip)
• Destroys BUT11 and bridge rectifiers on switch on. (part of circuit diagram displayed)
• Hum (interference noise) from speaker in standby. (part of circuit diagram displayed)
• No colour (at start-up). (with circuit diagram extract)
• Incorrect characters on the screen.
• No sound. No channels switching. Error code F7 appears on screen (TXT board).
• Vertical foldover. Flyback lines.
• On PB strange symbols or text appears on the screen.
• F0, UHF and P1 indication after approx 30 mins then no function.
• Stuck in standby.
• Tuning drifts (intermittently). (part of circuit diagram displayed)
• After switching on with the on/off switch the Stand by LED comes on for a short time and then goes off again at once. The same thing happens with the remote control.
• Fault codes F4 or F7 with no signals and orange LED.
• The power supply is noisy in standby. (picture attached)
• Sometimes remains in standby when switched on with the help of mains switch.
• Defective switching transistor in the SOPS supply. (picture attached)
• PSU shutsdown with popping sound. LEDs flashing.
• No picture. OSD OK . (+ extract of circuit diagram)
• Blurry picture. Audio OK .
• Does not switch on when cold. Strange oscillating noise from PSU. Green LED flashes quickly. Picture appears after a few mins but extremely noisy.
• No adjustment to low volume. (picture attached)
• PSU blows immediately at every switch on.
• No or poor operation of RC and front controls. No picture when cold. (picture attached)
• After tuning the channels cannot be stored. The appliance memorises one channel by itself. (with circuit diagram extract)
• No E/W, oscillation wide in narrow field on right side.
• Poor line synchronisation. (part of circuit diagram displayed)
• Sound is distorted and disappears as the volume is turned up. (part of circuit diagram displayed)
• No tuning search. No channels change. No numbers on display.
• +95V is incorrect. (part of circuit diagram displayed) (809066 BAUR repair tip)
• No horizontal synchronisation. in TXT. (picture attached)
• Tripping. (+ extract of circuit diagram)
• Trips few mins after switch on, increasing in speed until popping approx twice per sec. (extract of circuit diagram attached)
• Hum in audio. Horizontal lines.
• F7 error clears after a few minutes. (with circuit diagram extract) (809066 BAUR repair tip)
• Intermittently trips. Picture pulses to low width. Reduced height. Raster flashes.
• Tuned stations change constantly in the upper tuning areas VHF (B III) and UHF.
• Insufficient contrast. When readjusting, brightness is also adjusted. teletext is O.K. (+ extract of circuit diagram)
• Addition of fuse 1670.
• Purity fault.
• Displaying error code F7 intermittently. (extract of circuit diagram attached) (809066 BAUR repair tip)
• Picture becomes dark from time to time, cannot be adjusted. (part of circuit diagram displayed)
• Picture is missing, LED displays F4. (picture attached) (809066 BAUR repair tip)
• The R3661 resistor is in open circuit. (picture attached)
• Intermittent standby; loss of signals, colour and contrast. (part of circuit diagram displayed)
• When warm there is a raster fault on the left.
• Does not tune optimally. (with circuit diagram extract)
• Does not tune properly and will not stop on stations. (with circuit diagram extract)
• No red.
• Fluttering noise.
• Vertical collapse. (picture attached) (809066 tips)
• The raster pulls. (with circuit diagram extract)
• Blocked control. Error F7. LED flashing.
• No VHF1 and VHF3 function.
• Protection IC7380 BB panel. (service info for BAUR -809066)
• Manufacturing error.
• No RC functions. (+ extract of circuit diagram)
• Display has corrugated verticals. (extract of circuit diagram attached) (BAUR - 809066 information)
• Switches spontaneously to program 1. (picture attached)
• No text, front controls perform wrong task. (+ extract of circuit diagram)
• Reset after a no. of hours, switches back to programme 1.
• No picture. in the centre.
• Disable hotel mode. (809066 tip from BAUR)
• Snowy raster. (extract of circuit diagram attached)
• Shuts down (after a few minutes). PSU pulsates.
• Sound crackles and LED flashes green in the same rhythm.
• Only one horizontal line at bottom of screen.
• Set blocks. (with circuit diagram extract)
• Fine dark horizontal lines on picture after a short time. Picture slowly goes to line tear effect with vertical jitter; intermittent mute sound, then goes to standby.
• No tuning. Snow in picture. (with circuit diagram extract)
• Problems with FLOF TXT. Cannot find page 811 whereas in spite of this page is broadcast. TXT header remains on subtitling. (part of circuit diagram displayed)
• Lines in picture. (extract of circuit diagram attached)
• Shuts down. (+ extract of circuit diagram)
• Dead. Standby LED flashes . (809066 BAUR repair tip)
• Intermittent audio. (+ extract of circuit diagram)
• No text, F7 displayed. (picture attached)
• Switches off by itself.
• A production change:
• No regulation. (picture attached)
• Appliance runs perfectly, switches to standby then pumps the PSU.
• Bright raster. Poor vertical linearity. (picture attached)
• Dead (intermittently). (service info for BAUR -809066)
• Intermittently returns to channel 1, accompanied by a sound of arcing around tube base.
• Mono/stereo display error.
• Zig-Zags edges on picture.
• Snowy picture. No sound. LED flashes alternately green and yellow. No control via user control and RC. After approx. 5 mins operation, functions ok.
• Tuning drifts. Poor picture (when cold).
• Picture darkens slightly with remote control commands having no effect after about 2 hours. Display shows F4 or F7. (picture attached)
• Supply voltage cuts out, appliance whistles.
• The voltage is too weak. (picture attached)
• "F7" displayed.
• No picture. TXT OK .
• TS 7625 breaks frequently. (+ extract of circuit diagram)
• F7 upon switch on, or intermittent F7.
• No OSD. (picture attached)
• EHT low and line output transformer makes a fizzing noise. (+ extract of circuit diagram)
• Line pairing at top half of picture. (with circuit diagram extract)
• Low picture contrast. Cannot be controlled via user control.
• Switches off automatically for a short time and restarts with program1. Picture drops out or switches off.
• To loop the video through not using circuitry on satellite RX.
• Horizontal jitter. in the centre.
• Drifts through the tuning, unprogrammable.
• Reduced vertical size. Vertical foldover at top. (with circuit diagram extract)
• Standby LED continuously flashing.
• Cogging down sides of picture. (extract of circuit diagram attached)
• "F7" on OSD. No sound. LED flashing. OK after 20 mins. (with circuit diagram extract)
• The remote control and the operation unit shut off after approx.10 min.Later strange symbols appear on the screen. (extract of circuit diagram attached)
• Searches for channels continuously. (extract of circuit diagram attached)
• LED blinks in STANDBY mode. (with circuit diagram extract)
• Does not respond to commands in first 5 mins.
• Doesn't start, at switch-on LED green, then goes back to standby, doesn't respond to RC.
• Horizontal picture pulling especially with vertical lines. Fault disappears when warm. (part of circuit diagram displayed)
• No picture.
• The mains transistor BUT11 permanently blows at switch on. (+ extract of circuit diagram)
• Intercarrier buzzing is audible. (service info for BAUR -809066)
• Distorted picture. OK via SCART .
• No functions. LED blinks . (+ extract of circuit diagram)
• Chroma fault in SECAM. (with circuit diagram extract)
• No audio. Picture OK . (+ extract of circuit diagram)
• Light and dark vertical lines on left of picture. TXT does not function. OK when warm. (part of circuit diagram displayed)
• Incorrect OSD characters.
• Distorted picture. when cold.
• Squealing from PSU.
• Picture flares. (part of circuit diagram displayed)
• Intercarrier-hum. (part of circuit diagram displayed)
• Noise from PSU.
• Short circuit in the power supply.
• No colour in French standard.
• Dead. Power LED lit . (with circuit diagram extract)
• Line transformer crackles.
• Only chroma lines in VCR. (BAUR - 809066 information)
• Light picture content with coloured background.
• CDI picture comes through on TXT with G90AE chassis.
• Picture becomes narrow, lighter and disappears.
• Horizontal collapse (intermittently).
• Hiccups and returns to channel 1. Unable to reset. (+ extract of circuit diagram)
• After a few hours there is a slight reduction of brightness. When changing channel manually the display reads F4 or F7. (extract of circuit diagram attached)
• IC7720 does not function correctly. (+ extract of circuit diagram)
• Low output from power supply.
• Character error.
• Difficult front control operation.
• Humming, ticking. (extract of circuit diagram attached)
• No start-up. Squealing from PSU.
• F4 Error with arrows on sets with satellite RX.
• Outlines are distorted in the top part of the picture and intermittently no colour.
• No or poor synchronisation.
• Excessive vertical and horizontal size. (extract of circuit diagram attached)
• No picture. at start-up.
• Teletext faults. Characters wrong. (+ extract of circuit diagram)
• Lines in light areas and letters. Improves when contrast reduced. (extract of circuit diagram attached)
• Data lead to microprocessor on main board from satellite RX.
• D5770 (ZTK33B) fails repeatedly. No tuning or tuning drifts. (+ extract of circuit diagram) (809066 BAUR repair tip)
• Squealing from PSU. Audio and picture OK . (with circuit diagram extract)
• Lines in picture. on the left.
• After working normally for approx 2 hours, the TV blocks. "EX" appears on the screen. The remote control receiver does not function.
• Pal/Secam chroma identification problem.
• How to convert from G90 + SAT RX to standard G90. (service info for BAUR -809066)
• Error codes.
• No functions. (picture attached)
• Interference lines when cold but not when warm.
• Line output transformer information.
• One colour missing. (+ extract of circuit diagram)
• Tripping with clicking via speaker. (extract of circuit diagram attached)
• Erratic functions on satellite RX.
• No synchronisation. (extract of circuit diagram attached)
• Raster lines at the top of the picture, approx. 5 cm wide.
• Intermittently F4 appears. Dark picture.
• Picture is bowing on edges for couple of minutes.
• Tripping (after start-up). (picture attached)
• Poor audio. (+ extract of circuit diagram)
• Thin horizontal black lines in upper picture area. Error is shock sensitive in the beginning, then becomes permanent.
• Poor tuning. Search sometimes does not stop. Picture shifted and trembles. (with circuit diagram extract)
• Stuck on channel 8. No front controls or R/C operations. Standby LED flashing. (+ extract of circuit diagram)
• Trips, plop in speakers.