809086 / BAUR [TV]

• Picture becomes dark from time to time, cannot be adjusted. (extract of circuit diagram attached) (809086 tip from BAUR)
• No picture. TXT OK .
• Teletext faults. Set very intermittently shows error F7. (part of circuit diagram displayed)
• In TXT, takes about 60 secs to build up page. Page never quite fills up completely with data, thus looking confusing.
• Tripping. at start-up.
• No picture. Audio OK . (with circuit diagram extract)
• No red in the picture with an RGB input.
• Shuts down. (part of circuit diagram displayed)
• Hiccups and returns to channel 1. Unable to reset. (picture attached)
• Corrugated verticals. (+ extract of circuit diagram) (809086 BAUR repair tip)
• Displaying error code F7 intermittently. (+ extract of circuit diagram)
• No text, front controls perform wrong task. (picture attached)
• Cycles on/off (intermittently).
• Dead. LED blinks .
• Sizzling/picture distortion.
• Snowy picture. No sound. LED flashes alternately green and yellow. No control via user control and RC. After approx. 5 mins operation, functions ok. (809086 BAUR repair tip)
• Intermittent standby; loss of signals, colour and contrast. (picture attached)
• No start-up. Squealing from PSU.
• Tuned stations change constantly in the upper tuning areas VHF (B III) and UHF. (service info for BAUR -809086)
• Vertical foldover. Flyback lines.
• Insufficient contrast. When readjusting, brightness is also adjusted. teletext is O.K. (with circuit diagram extract)
• Switches spontaneously to program 1. (part of circuit diagram displayed)
• Horizontal picture pulling especially with vertical lines. Fault disappears when warm. (+ extract of circuit diagram)
• No blue. (part of circuit diagram displayed) (809086 tip from BAUR)
• For 5 minutes zigzag edges in the picture. (picture attached)
• Fault codes F4 or F7 with no signals and orange LED.
• Breakdown of T7625. (+ extract of circuit diagram)
• Appliance stuck on programme "1". OSD shows F7.
• Excessive vertical and horizontal size. (extract of circuit diagram attached)
• Reset after a no. of hours, switches back to programme 1.
• Only noise, otherwise no functions or display.
• Chroma fault in SECAM. (with circuit diagram extract)
• Vertical striations and shading on left hand side of picture accompanied by smearing. Intermittent loss of line lock.
• Protection IC7380 BB panel.
• F4 Error with arrows on sets with satellite RX.
• Black lines in picture, then no picture.
• After operating for approx 1.5 hours the appliance switches to search mode by itself. (809086 tip from BAUR)
• Low picture contrast. Cannot be controlled via user control.
• Humming, ticking. (+ extract of circuit diagram)
• F5 Error on sets with satellite RX.
• Does not tune properly and will not stop on stations. (+ extract of circuit diagram)
• When appliance is switched on it jumps to channel 3 then when the appliance is warm it shuts down. (extract of circuit diagram attached)
• Does not function well. Wrong characters on screen. (part of circuit diagram displayed)
• 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. (809086 tips)
• No vertical deflection. (+ extract of circuit diagram)
• Vertical collapse. (+ extract of circuit diagram)
• No E/W, oscillation wide in narrow field on right side.
• Intercarrier-hum. (extract of circuit diagram attached)
• Intermittently trips. Picture pulses to low width. Reduced height. Raster flashes.
• No tuning. only on certain channels.
• 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.
• PSU blows immediately at every switch on.
• No sound. No channels switching. Error code F7 appears on screen (TXT board).
• Raster lines at the top of the picture, approx. 5 cm wide.
• Memory loss. (with circuit diagram extract)
• No tuning search. No channels change. No numbers on display. (BAUR - 809086 information)
• Drifts through the tuning, unprogrammable.
• The mains transistor BUT11 permanently blows at switch on. (with circuit diagram extract)
• Standby LED continuously flashing.
• Light spot after switch off. (with circuit diagram extract)
• When warm there is a raster fault on the left. (809086 tip from BAUR)
• Snowy raster. (with circuit diagram extract)
• Picture is bowing on edges for couple of minutes.
• Microprocessor/eprom screening plate.
• Supply voltage cuts out, appliance whistles.
• Dead. (with circuit diagram extract)
• Trips with power LED flashing and speaker popping in unison. (extract of circuit diagram attached) (service info for BAUR -809086)
• Error codes.
• Distorted picture. OK via SCART .
• Defective switching transistor in the SOPS supply. (picture attached) (service info for BAUR -809086)
• No picture content for the first ten minutes. White picture with flybacks lines.
• No RC functions. (extract of circuit diagram attached)
• Only one horizontal line at bottom of screen.
• F7 upon switch on, or intermittent F7.
• No line oscillation.
• Addition of fuse 1670.
• No or poor synchronisation.
• The raster pulls. (+ extract of circuit diagram)
• EHT low and line output transformer makes a fizzing noise. (picture attached)
• Low contrast. (part of circuit diagram displayed)
• Dead. Standby LED flashes .
• Stuck on channel 8. No front controls or R/C operations. Standby LED flashing. (picture attached) (service info for BAUR -809086)
• No sound at switch on. Picture is present. "F7" displayed on screen. No RC. Everything OK when warm.
• Fine, dark horizontal lines when warm.
• LED blinks in STANDBY mode. (+ extract of circuit diagram)
• Black horizontal lines in picture.
• Ragged picture. Dim display. (part of circuit diagram displayed)
• No colour. (+ extract of circuit diagram)
• Poor tuning. Search sometimes does not stop. Picture shifted and trembles. (extract of circuit diagram attached)
• Intercarrier buzzing is audible.
• Only programme 6 at switch on. F7 on display. No control. No function of keys or RC. (+ extract of circuit diagram)
• Tripping. (picture attached)
• How to convert from G90 + SAT RX to standard G90.
• A production change:
• No VHF1 and VHF3 function.
• Intermittently sound mutes and OSG are jumbled.
• Blank raster. No sound. No OSD. RC LED does not flash when a command is transmitted. (+ extract of circuit diagram)
• No synchronisation. when cold. (with circuit diagram extract)
• Intermittently F4 appears. Dark picture. (service info for BAUR -809086)
• "F7" on OSD. No sound. LED flashing. OK after 20 mins. (picture attached)
• No tuning.
• The power supply gurgles if the mains voltage is weak. (part of circuit diagram displayed)
• No teletext. No F7 error. Can still change channels in text mode.
• Upper part of picture consists of a few lines. (part of circuit diagram displayed)
• The "LE" voltage is less than 100V. (+ extract of circuit diagram)
• Blows fuse. (809086 tip from BAUR)
• Spot lights after switching off. (extract of circuit diagram attached)
• Erratic functions on satellite RX.
• Intermittently strange signs in picture. No function of RC. (extract of circuit diagram attached)
• No switch to AV. EXT1 or EXT2.
• Poor functioning of RC receiver at switch on from standby. RC must be close to IR receiver.
• After working normally for approx 2 hours, the TV blocks. "EX" appears on the screen. The remote control receiver does not function.
• Faulty OSD.
• PSU shutsdown with popping sound. LEDs flashing.
• Tripping (intermittently).
• Zig-Zags edges on picture. (809086 tip from BAUR)
• Trips few mins after switch on, increasing in speed until popping approx twice per sec. (part of circuit diagram displayed)
• Blocked control. Error F7. LED flashing.
• Useful voltages to check on satellite RX board (809086 tips)
• Line pairing at top half of picture. (part of circuit diagram displayed)
• Light picture content with coloured background.
• Stuck in standby.
• Vertical streaks at the left of the picture which disappear after a while. (part of circuit diagram displayed)
• Fluttering noise.
• Crackling/bubbling sound from speaker when switched to standby after a short time. (+ extract of circuit diagram)
• After approx 30 mins faulty OSD and no function. No start-up furthermore.
• Horizontally torn picture.
• D5770 (ZTK33B) fails repeatedly. No tuning or tuning drifts. (picture attached)
• Picture only 3cms high.
• No tuning. Snow in picture. (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. (809086 tip from BAUR)
• Set blocks. (with circuit diagram extract)
• Picture darkens slightly with remote control commands having no effect after about 2 hours. Display shows F4 or F7. (extract of circuit diagram attached)
• Intermittently displaying error code F7.
• The R3661 resistor is in open circuit. (picture attached)
• Incorrect OSD characters.
• Searches for channels continuously. (with circuit diagram extract)
• "F7" displayed.
• The BUT11AF is destroyed after some time. (part of circuit diagram displayed)
• No red.
• Teletext faults. Page 811 appears spontaneously. (extract of circuit diagram attached)
• White screen. (with circuit diagram extract) (809086 tip from BAUR)
• No text, F7 displayed. (extract of circuit diagram attached)
• No picture. Blank raster. (picture attached)
• No line timebase operation. (picture attached)
• Horizontal jitter. in the centre. (service info for BAUR -809086)
• Strange signs in picture or text. EXT 1 and EXT 2.
• Occasional picture foldover at the top on certain programas when changing picture or channel.
• The voltage of +95V line alters. (part of circuit diagram displayed)
• Faulty TXT.
• No sound and "F7" on OSD, OK after 20 mins.
• The appliance will not tune stations higher than 55, the tuning varies. (picture attached)
• Poor line synchronisation. (extract of circuit diagram attached)
• Display has corrugated verticals. (with circuit diagram extract)
• Bright raster. Poor vertical linearity. (part of circuit diagram displayed)
• 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.
• After a few hours there is a slight reduction of brightness. When changing channel manually the display reads F4 or F7. (picture attached)
• Does not stop when sweep tuning. Drifts if manually tuned. (part of circuit diagram displayed)
• BUT11AF is defective and is destroyed at each start up. (extract of circuit diagram attached)
• Dead. Power LED lit . (+ extract of circuit diagram)
• Loss of sound. STEREO/MONO indication lit.
• No regulation. (with circuit diagram extract) (809086 tip from BAUR)
• Tuning drifts. (with circuit diagram extract)
• No OSD. (+ extract of circuit diagram)
• Vertical shaking. No synchronisation.
• Cycles on/off.
• No functions. (picture attached)
• No synchronisation (intermittently).
• Incorrect characters on the screen.
• Destroys BUT11 and bridge rectifiers on switch on. (part of circuit diagram displayed) (service info for BAUR -809086)
• Only chroma lines in VCR.
• Problems with FLOF TXT. Cannot find page 811 whereas in spite of this page is broadcast. TXT header remains on subtitling. (+ extract of circuit diagram)
• Line transformer crackles.
• No horizontal deflection. Standby LED flashes .
• CDI picture comes through on TXT with G90AE chassis.
• Video signal and sound are missing, raster is blank. (extract of circuit diagram attached)
• Line tearing at vertical lines from top to bottom in test picture.
• No functions. after a few minutes.
• Dark picture. (+ extract of circuit diagram)
• Manufacturing error.
• Does not go to standby via RC; LED on set changes from green to orange (should be red).
• Rattle in sound. (extract of circuit diagram attached)
• Poor audio. (with circuit diagram extract)
• Picture jitters.
• Intermittently returns to channel 1, accompanied by a sound of arcing around tube base.
• TS 7625 breaks frequently. (+ extract of circuit diagram)
• Not operational. F7 in picture.
• No picture. at start-up.
• No audio. Picture OK . (+ extract of circuit diagram) (service info for BAUR -809086)
• No audio (intermittently). (picture attached) (BAUR - 809086 information)
• Short circuit in the power supply. (BAUR - 809086 information)
• No focus.
• No or poor operation of RC and front controls. No picture when cold. (picture attached)
• Dead (intermittently).
• No picture. OSD OK . (extract of circuit diagram attached)
• No audio. No picture. (picture attached)
• Sound crackles and LED flashes green in the same rhythm.
• No horizontal synchronisation. in TXT. (extract of circuit diagram attached)
• Tuning drift or no signals though the green bar moves. (extract of circuit diagram attached)
• Switches off automatically for a short time and restarts with program1. Picture drops out or switches off.
• The remote control and the operation unit shut off after approx.10 min.Later strange symbols appear on the screen. (picture attached) (809086 tip from BAUR)
• Difficult front control operation.
• Teletext faults. Characters wrong. (picture attached)
• Character error.
• No sound, F7 error code LED flashes. (part of circuit diagram displayed)
• No colour in French standard. (BAUR - 809086 information)
• Jumps to channel 1 or switches off itself. (part of circuit diagram displayed)
• F0, UHF and P1 indication after approx 30 mins then no function.
• Data lead to microprocessor on main board from satellite RX.
• Codes F4 or F7 with no signals and LED orange.
• PSU failure.
• Interference lines when cold but not when warm.
• After tuning the channels cannot be stored. The appliance memorises one channel by itself. (part of circuit diagram displayed)
• No picture. No sound. No RC function. LED lights up green.
• Appliance works perfectly for a few days and then all the components burn out on the primary side of the switching circuit. (picture attached) (809086 tip from BAUR)
• Wide oscillation in the weak field on the right hand side. (part of circuit diagram displayed)
• Power supply defective.
• To loop the video through not using circuitry on satellite RX.
• Shape of picture is wrong. The fault is more evident in text mode. Also thin black horizontal lines.
• Limited contrast control range. (part of circuit diagram displayed)
• No reaction from front controls and RC. Also no switchover possible to HF.
• Sound is distorted and disappears as the volume is turned up. (with circuit diagram extract)
• If appliance is switched to standby when cold, it starts pumping. Other functions OK.
• Black dots in the bright-white spots.
• No function. Rapid loud popping noise with synchronised standby LED flashing.
• No synchronisation. (+ extract of circuit diagram)
• Stops when warm. Display shows F7. (service info for BAUR -809086)
• "F7" on OSD. No audio and stuck on channel. OK after 20 mins. (service info for BAUR -809086)
• No functions. LED blinks . (part of circuit diagram displayed) (809086 tip from BAUR)
• Low HV. intermittently. (extract of circuit diagram attached)
• No start-up. Green LED flashes .
• Line output transistor 7545 (BUT11AF) fails after a while.
• Light and dark vertical lines on left of picture. TXT does not function. OK when warm. (part of circuit diagram displayed)
• U743 tuner replacement.
• Reduced vertical size. Vertical foldover at top. (part of circuit diagram displayed)
• No tuning. No display. No RC functions. (with circuit diagram extract)
• Erratic clock.
• Does not switch on when cold. Strange oscillating noise from PSU. Green LED flashes quickly. Picture appears after a few mins but extremely noisy.
• Picture becomes narrow, lighter and disappears.
• Line lock is incorrect. (service info for BAUR -809086)
• Blocks and wrong OSD indication.
• The output transistor of the power supply is defective. BUT11AF, BUT18AF or 2SC3973B. (with circuit diagram extract)
• Switches back to program 1.
• Intermittent audio. (picture attached)
• Picture flares. (+ extract of circuit diagram)
• Missing 95V.
• Shutsdown with motorboating noise after 10 minutes.
• Pulsing, rolling with jagged white line at top of screen.
• IC7720 does not function correctly. (picture attached)
• Purity fault.
• No adjustment to low volume. (part of circuit diagram displayed)
• Mono/stereo display error. (BAUR - 809086 information)
• Blue picture. (picture attached)
• Does not switch to standby. (service info for BAUR -809086)
• Random failure of the BUT11AF chopper transistor. (+ extract of circuit diagram)
• Certain channels drop out in UHF range.
• Shuts down (after a few minutes). PSU pulsates.
• F7 error clears after a few minutes. (+ extract of circuit diagram)
• On PB strange symbols or text appears on the screen.
• Lines in picture. on the left.
• Shuts down. after a while.
• Lines in picture. (picture attached)
• Only part picture can be seen, sound OK. (part of circuit diagram displayed)
• Noise from PSU.
• Squealing from PSU. Audio and picture OK . (+ extract of circuit diagram)
• Line output transformer information.
• Reduced vertical size. (part of circuit diagram displayed)
• No picture. in the centre.
• No TXT. No picture. after a while. (809086 tips)
• 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.
• "F7" displayed on OSD, LED flashes and user controls inoperative.
• The voltage is too weak. (picture attached)
• Lines in light areas and letters. Improves when contrast reduced. (extract of circuit diagram attached) (809086 tips)
• No colour (at start-up). (+ extract of circuit diagram)
• Trips, plop in speakers.
• Distorted picture. when cold.
• Outlines are distorted in the top part of the picture and intermittently no colour.
• Cogging down sides of picture. (extract of circuit diagram attached)
• No signal to the collector BUT11AF. (with circuit diagram extract)
• Popping noise from speakers, only at switch on.
• Disable hotel mode.
• Tripping with clicking via speaker. (+ extract of circuit diagram)
• Flyback lines. at top.
• Over-voltage circuit active. (with circuit diagram extract)
• Picture and sound are missing, LED flashes at switch on, ok in standby.
• Does not respond to commands in first 5 mins.
• Picture is missing, LED displays F4. (extract of circuit diagram attached)
• Low output from power supply. (809086 BAUR repair tip)
• Switches off by itself.
• No channel storing.
• Page 811 appears by itself and is blocked.
• One colour missing. (+ extract of circuit diagram)
• Chopper transistor (BUT11AF) S/C. (picture attached)
• Hum in audio. Horizontal lines.
• Doesn't start, at switch-on LED green, then goes back to standby, doesn't respond to RC.
• Appliance runs perfectly, switches to standby then pumps the PSU.
• Tripping (after start-up). (+ extract of circuit diagram)
• Blurry picture. Audio OK .
• Does not tune optimally. (+ extract of circuit diagram)
• Horizontal collapse (intermittently).
• Blank raster. TXT OK . (extract of circuit diagram attached)
• 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.
• Pal/Secam chroma identification problem.
• No picture. AV OK . (picture attached)
• Thin horizontal black lines in upper picture area. Error is shock sensitive in the beginning, then becomes permanent. (BAUR - 809086 information)
• Intermittent fuse blowing, blows BUT11AF. (picture attached)
• No picture.
• Reduced horizontal size.
• Flashover on picture tube print. (picture attached)
• Tuning drifts (intermittently). (extract of circuit diagram attached) (809086 BAUR repair tip)
• +95V is incorrect. (+ extract of circuit diagram)
• Hum (interference noise) from speaker in standby. (extract of circuit diagram attached) (809086 tip from BAUR)
• PSU pulsates. (BAUR - 809086 information)
• Tuning drifts. Poor picture (when cold).
• Sometimes remains in standby when switched on with the help of mains switch.
• The power supply is noisy in standby. (+ extract of circuit diagram)
• Squealing from PSU.