809126 / BAUR [TV]

• Erratic functions on satellite RX.
• No tuning. No display. No RC functions. (part of circuit diagram displayed)
• For 5 minutes zigzag edges in the picture. (picture attached)
• Appliance runs perfectly, switches to standby then pumps the PSU.
• Breakdown of T7625. (with circuit diagram extract)
• Codes F4 or F7 with no signals and LED orange.
• No text, front controls perform wrong task. (part of circuit diagram displayed)
• No text, F7 displayed. (part of circuit diagram displayed)
• Tuning drifts. (picture attached) (809126 BAUR repair tip)
• +95V is incorrect. (extract of circuit diagram attached)
• The voltage is too weak. (picture attached)
• No RC functions. (extract of circuit diagram attached)
• Cycles on/off (intermittently).
• Only chroma lines in VCR. (service info for BAUR -809126)
• Humming, ticking. (extract of circuit diagram attached)
• Vertical streaks at the left of the picture which disappear after a while. (with circuit diagram extract)
• Line tearing at vertical lines from top to bottom in test picture.
• Dark picture. (with circuit diagram extract)
• Incorrect characters on the screen.
• No teletext. No F7 error. Can still change channels in text mode.
• Does not switch to standby.
• No synchronisation. when cold. (picture attached)
• Does not switch on when cold. Strange oscillating noise from PSU. Green LED flashes quickly. Picture appears after a few mins but extremely noisy.
• Cogging down sides of picture. (with circuit diagram extract)
• Faulty TXT.
• Certain channels drop out in UHF range.
• No tuning. only on certain channels.
• Occasional picture foldover at the top on certain programas when changing picture or channel.
• Error codes.
• Protection IC7380 BB panel.
• Picture is missing, LED displays F4. (with circuit diagram extract)
• Data lead to microprocessor on main board from satellite RX.
• Distorted picture. OK via SCART .
• F7 error clears after a few minutes. (picture attached)
• Shutsdown with motorboating noise after 10 minutes.
• Sizzling/picture distortion.
• Chopper transistor (BUT11AF) S/C. (part of circuit diagram displayed)
• Intermittently returns to channel 1, accompanied by a sound of arcing around tube base.
• No function. Rapid loud popping noise with synchronised standby LED flashing.
• Wide oscillation in the weak field on the right hand side. (picture attached)
• Dead. Standby LED flashes .
• The power supply gurgles if the mains voltage is weak. (extract of circuit diagram attached) (809126 tip from BAUR)
• Display has corrugated verticals. (with circuit diagram extract)
• One colour missing. (+ extract of circuit diagram) (809126 tips)
• Fault codes F4 or F7 with no signals and orange LED.
• Hum (interference noise) from speaker in standby. (+ extract of circuit diagram)
• Appliance works perfectly for a few days and then all the components burn out on the primary side of the switching circuit. (picture attached)
• Switches back to program 1.
• No picture. (BAUR - 809126 information)
• CDI picture comes through on TXT with G90AE chassis. (809126 tip from BAUR)
• Dead. Power LED lit . (+ extract of circuit diagram)
• No picture. TXT OK .
• Intermittently sound mutes and OSG are jumbled.
• No red.
• No blue. (part of circuit diagram displayed)
• No vertical deflection. (part of circuit diagram displayed)
• Light picture content with coloured background. (service info for BAUR -809126)
• Jumps to channel 1 or switches off itself. (with circuit diagram extract)
• Supply voltage cuts out, appliance whistles.
• No picture. AV OK . (part of circuit diagram displayed)
• Blows fuse.
• IC7720 does not function correctly. (extract of circuit diagram attached)
• Picture and sound are missing, LED flashes at switch on, ok in standby.
• No picture. at start-up.
• Shuts down. after a while.
• Picture becomes dark from time to time, cannot be adjusted. (with circuit diagram extract)
• 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.
• 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.
• No functions. (picture attached) (service info for BAUR -809126)
• Short circuit in the power supply.
• Low picture contrast. Cannot be controlled via user control.
• Teletext faults. Page 811 appears spontaneously. (with circuit diagram extract)
• Erratic clock.
• Tuning drifts (intermittently). (with circuit diagram extract)
• F0, UHF and P1 indication after approx 30 mins then no function.
• PSU failure.
• Poor functioning of RC receiver at switch on from standby. RC must be close to IR receiver.
• Tripping. (+ extract of circuit diagram)
• Trips, plop in speakers.
• Dead. LED blinks .
• No picture content for the first ten minutes. White picture with flybacks lines.
• Fluttering noise.
• Squealing from PSU. Audio and picture OK . (picture attached)
• F7 upon switch on, or intermittent F7.
• Mono/stereo display error. (809126 tip from BAUR)
• Tripping (intermittently).
• Poor audio. (part of circuit diagram displayed)
• Loss of sound. STEREO/MONO indication lit.
• Picture darkens slightly with remote control commands having no effect after about 2 hours. Display shows F4 or F7. (extract of circuit diagram attached) (809126 tips)
• No start-up. Green LED flashes .
• Interference lines when cold but not when warm.
• Blocks and wrong OSD indication.
• Intermittently trips. Picture pulses to low width. Reduced height. Raster flashes.
• Picture flares. (part of circuit diagram displayed)
• Squealing from PSU.
• Insufficient contrast. When readjusting, brightness is also adjusted. teletext is O.K. (extract of circuit diagram attached)
• The output transistor of the power supply is defective. BUT11AF, BUT18AF or 2SC3973B. (extract of circuit diagram attached)
• Shuts down. (part of circuit diagram displayed)
• To loop the video through not using circuitry on satellite RX.
• Vertical shaking. No synchronisation.
• No reaction from front controls and RC. Also no switchover possible to HF.
• BUT11AF is defective and is destroyed at each start up. (with circuit diagram extract)
• Poor line synchronisation. (+ extract of circuit diagram)
• In TXT, takes about 60 secs to build up page. Page never quite fills up completely with data, thus looking confusing.
• No audio. Picture OK . (extract of circuit diagram attached)
• No OSD. (with circuit diagram extract)
• Tuned stations change constantly in the upper tuning areas VHF (B III) and UHF.
• No functions. after a few minutes.
• If appliance is switched to standby when cold, it starts pumping. Other functions OK.
• Cycles on/off.
• Useful voltages to check on satellite RX board
• Reduced vertical size. (with circuit diagram extract)
• Blank raster. No sound. No OSD. RC LED does not flash when a command is transmitted. (extract of circuit diagram attached)
• No tuning.
• No focus.
• Tripping with clicking via speaker. (part of circuit diagram displayed)
• "F7" on OSD. No audio and stuck on channel. OK after 20 mins. (809126 tip from BAUR)
• Difficult front control operation.
• Page 811 appears by itself and is blocked. (809126 tips)
• Distorted picture. when cold.
• LED blinks in STANDBY mode. (extract of circuit diagram attached)
• Picture only 3cms high.
• No picture. No sound. No RC function. LED lights up green.
• Fine, dark horizontal lines when warm. (809126 tips)
• Ragged picture. Dim display. (picture attached)
• Corrugated verticals. (with circuit diagram extract)
• Sound is distorted and disappears as the volume is turned up. (extract of circuit diagram attached)
• No or poor operation of RC and front controls. No picture when cold. (with circuit diagram extract)
• Flyback lines. at top.
• Flashover on picture tube print. (part of circuit diagram displayed)
• No sound. No channels switching. Error code F7 appears on screen (TXT board). (809126 BAUR repair tip)
• The appliance will not tune stations higher than 55, the tuning varies. (with circuit diagram extract)
• Defective switching transistor in the SOPS supply. (+ extract of circuit diagram)
• Only part picture can be seen, sound OK. (with circuit diagram extract)
• Black lines in picture, then no picture.
• Vertical collapse. (+ extract of circuit diagram)
• Standby LED continuously flashing.
• Black horizontal lines in picture.
• No picture. Audio OK . (with circuit diagram extract)
• Horizontal collapse (intermittently).
• Reduced horizontal size.
• After working normally for approx 2 hours, the TV blocks. "EX" appears on the screen. The remote control receiver does not function.
• Hiccups and returns to channel 1. Unable to reset. (with circuit diagram extract)
• No audio. No picture. (extract of circuit diagram attached)
• Does not respond to commands in first 5 mins.
• Appliance stuck on programme "1". OSD shows F7.
• No tuning search. No channels change. No numbers on display.
• No picture. OSD OK . (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.
• Upper part of picture consists of a few lines. (part of circuit diagram displayed)
• No channel storing.
• F4 Error with arrows on sets with satellite RX.
• Stuck on channel 8. No front controls or R/C operations. Standby LED flashing. (extract of circuit diagram attached)
• No audio (intermittently). (picture attached) (809126 tip from BAUR)
• Memory loss. (+ extract of circuit diagram)
• Vertical striations and shading on left hand side of picture accompanied by smearing. Intermittent loss of line lock. (809126 tips)
• No sound and "F7" on OSD, OK after 20 mins. (809126 tip from BAUR)
• Reset after a no. of hours, switches back to programme 1. (809126 tip from BAUR)
• No colour (at start-up). (extract of circuit diagram attached)
• How to convert from G90 + SAT RX to standard G90.
• Light spot after switch off. (part of circuit diagram displayed)
• Character error. (service info for BAUR -809126)
• A production change:
• Low contrast. (picture attached) (BAUR - 809126 information)
• Tuning drift or no signals though the green bar moves. (picture attached)
• When appliance is switched on it jumps to channel 3 then when the appliance is warm it shuts down. (part of circuit diagram displayed)
• Horizontally torn picture.
• Low output from power supply.
• Drifts through the tuning, unprogrammable.
• D5770 (ZTK33B) fails repeatedly. No tuning or tuning drifts. (extract of circuit diagram attached)
• Line transformer crackles.
• Switches spontaneously to program 1. (part of circuit diagram displayed)
• TS 7625 breaks frequently. (part of circuit diagram displayed) (service info for BAUR -809126)
• When warm there is a raster fault on the left.
• Vertical foldover. Flyback lines.
• No line oscillation.
• Snowy picture. No sound. LED flashes alternately green and yellow. No control via user control and RC. After approx. 5 mins operation, functions ok.
• 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.
• Switches off by itself.
• Intercarrier-hum. (extract of circuit diagram attached)
• Crackling/bubbling sound from speaker when switched to standby after a short time. (part of circuit diagram displayed)
• The "LE" voltage is less than 100V. (with circuit diagram extract)
• No synchronisation (intermittently).
• White screen. (extract of circuit diagram attached) (BAUR - 809126 information)
• The voltage of +95V line alters. (part of circuit diagram displayed)
• Chroma fault in SECAM. (+ extract of circuit diagram)
• Blurry picture. Audio OK .
• No VHF1 and VHF3 function. (809126 tips)
• Stuck in standby.
• Poor tuning. Search sometimes does not stop. Picture shifted and trembles. (extract of circuit diagram attached)
• No TXT. No picture. after a while.
• Intermittently displaying error code F7.
• No horizontal synchronisation. in TXT. (extract of circuit diagram attached)
• "F7" displayed.
• 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.
• Line output transistor 7545 (BUT11AF) fails after a while.
• Thin horizontal black lines in upper picture area. Error is shock sensitive in the beginning, then becomes permanent.
• Only noise, otherwise no functions or display.
• Manufacturing error.
• Missing 95V.
• Tripping (after start-up). (extract of circuit diagram attached)
• Shape of picture is wrong. The fault is more evident in text mode. Also thin black horizontal lines.
• Power supply defective.
• Intermittent standby; loss of signals, colour and contrast. (part of circuit diagram displayed)
• Line output transformer information.
• Tripping. at start-up.
• Only one horizontal line at bottom of screen.
• Not operational. F7 in picture.
• No colour in French standard.
• No red in the picture with an RGB input. (809126 tip from BAUR)
• Shuts down (after a few minutes). PSU pulsates.
• After operating for approx 1.5 hours the appliance switches to search mode by itself.
• Does not stop when sweep tuning. Drifts if manually tuned. (with circuit diagram extract) (809126 tips)
• The power supply is noisy in standby. (part of circuit diagram displayed)
• No adjustment to low volume. (part of circuit diagram displayed)
• Random failure of the BUT11AF chopper transistor. (part of circuit diagram displayed) (809126 tip from BAUR)
• Set blocks. (part of circuit diagram displayed)
• Teletext faults. Set very intermittently shows error F7. (part of circuit diagram displayed)
• On PB strange symbols or text appears on the screen.
• Pulsing, rolling with jagged white line at top of screen.
• No colour. (+ extract of circuit diagram) (809126 tips)
• No regulation. (part of circuit diagram displayed)
• After a few hours there is a slight reduction of brightness. When changing channel manually the display reads F4 or F7. (picture attached) (809126 tip from BAUR)
• No picture. in the centre.
• Teletext faults. Characters wrong. (picture attached)
• Does not tune optimally. (part of circuit diagram displayed)
• Intermittently strange signs in picture. No function of RC. (+ extract of circuit diagram)
• PSU shutsdown with popping sound. LEDs flashing.
• Light and dark vertical lines on left of picture. TXT does not function. OK when warm. (with circuit diagram extract)
• Intercarrier buzzing is audible.
• Raster lines at the top of the picture, approx. 5 cm wide. (BAUR - 809126 information)
• Popping noise from speakers, only at switch on.
• Video signal and sound are missing, raster is blank. (part of circuit diagram displayed)
• Hum in audio. Horizontal lines.
• After tuning the channels cannot be stored. The appliance memorises one channel by itself. (+ extract of circuit diagram)
• Low HV. intermittently. (+ extract of circuit diagram)
• Faulty OSD.
• Displaying error code F7 intermittently. (with circuit diagram extract)
• Dead. (with circuit diagram extract)
• PSU blows immediately at every switch on.
• Picture becomes narrow, lighter and disappears.
• The mains transistor BUT11 permanently blows at switch on. (+ extract of circuit diagram)
• No sound, F7 error code LED flashes. (part of circuit diagram displayed)
• Does not function well. Wrong characters on screen. (part of circuit diagram displayed)
• Tuning drifts. Poor picture (when cold). (809126 tip from BAUR)
• U743 tuner replacement.
• Lines in light areas and letters. Improves when contrast reduced. (part of circuit diagram displayed) (BAUR - 809126 information)
• Lines in picture. (part of circuit diagram displayed)
• The BUT11AF is destroyed after some time. (extract of circuit diagram attached)
• No functions. LED blinks . (extract of circuit diagram attached)
• Sound crackles and LED flashes green in the same rhythm.
• Blue picture. (part of circuit diagram displayed)
• Horizontal jitter. in the centre.
• Picture jitters.
• Purity fault.
• Does not go to standby via RC; LED on set changes from green to orange (should be red).
• Searches for channels continuously. (picture attached)
• Trips with power LED flashing and speaker popping in unison. (extract of circuit diagram attached)
• Limited contrast control range. (+ extract of circuit diagram)
• Only programme 6 at switch on. F7 on display. No control. No function of keys or RC. (+ extract of circuit diagram) (809126 tips)
• Spot lights after switching off. (extract of circuit diagram attached)
• No synchronisation. (extract of circuit diagram attached)
• Rattle in sound. (extract of circuit diagram attached)
• Addition of fuse 1670.
• Sometimes remains in standby when switched on with the help of mains switch.
• "F7" displayed on OSD, LED flashes and user controls inoperative.
• The remote control and the operation unit shut off after approx.10 min.Later strange symbols appear on the screen. (part of circuit diagram displayed) (809126 BAUR repair tip)
• No switch to AV. EXT1 or EXT2.
• Intermittent fuse blowing, blows BUT11AF. (extract of circuit diagram attached)
• Zig-Zags edges on picture.
• Blank raster. TXT OK . (+ extract of circuit diagram)
• Line pairing at top half of picture. (part of circuit diagram displayed)
• Switches off automatically for a short time and restarts with program1. Picture drops out or switches off.
• No picture. Blank raster. (part of circuit diagram displayed)
• Blocked control. Error F7. LED flashing.
• Bright raster. Poor vertical linearity. (+ extract of circuit diagram)
• No signal to the collector BUT11AF. (part of circuit diagram displayed)
• Intermittently F4 appears. Dark picture.
• Incorrect OSD characters.
• Reduced vertical size. Vertical foldover at top. (+ extract of circuit diagram)
• 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.
• The R3661 resistor is in open circuit. (part of circuit diagram displayed)
• Snowy raster. (picture attached)
• No tuning. Snow in picture. (picture attached) (BAUR - 809126 information)
• Disable hotel mode.
• Destroys BUT11 and bridge rectifiers on switch on. (+ extract of circuit diagram)
• F5 Error on sets with satellite RX.
• Black dots in the bright-white spots.
• No line timebase operation. (with circuit diagram extract)
• The raster pulls. (extract of circuit diagram attached)
• Outlines are distorted in the top part of the picture and intermittently no colour.
• Does not tune properly and will not stop on stations. (picture attached)
• No horizontal deflection. Standby LED flashes .
• Trips few mins after switch on, increasing in speed until popping approx twice per sec. (picture attached)
• Doesn't start, at switch-on LED green, then goes back to standby, doesn't respond to RC.
• Pal/Secam chroma identification problem.
• Excessive vertical and horizontal size. (picture attached)
• EHT low and line output transformer makes a fizzing noise. (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) (809126 BAUR repair tip)
• No E/W, oscillation wide in narrow field on right side.
• Strange signs in picture or text. EXT 1 and EXT 2.
• No sound at switch on. Picture is present. "F7" displayed on screen. No RC. Everything OK when warm.
• PSU pulsates.
• Intermittent audio. (extract of circuit diagram attached)
• Line lock is incorrect.
• "F7" on OSD. No sound. LED flashing. OK after 20 mins. (part of circuit diagram displayed)
• Dead (intermittently).
• No start-up. Squealing from PSU.
• Over-voltage circuit active. (extract of circuit diagram attached)
• No or poor synchronisation.
• Stops when warm. Display shows F7.
• Horizontal picture pulling especially with vertical lines. Fault disappears when warm. (with circuit diagram extract)
• Lines in picture. on the left. (BAUR - 809126 information)
• Microprocessor/eprom screening plate.
• Noise from PSU.
• After approx 30 mins faulty OSD and no function. No start-up furthermore.
• Picture is bowing on edges for couple of minutes.