PHILETTA2423 / BAUR [TV]

• Microprocessor/eprom screening plate. (BAUR - PHILETTA2423 information)
• Strange signs in picture or text. EXT 1 and EXT 2.
• Power supply defective.
• Line transformer crackles.
• The appliance will not tune stations higher than 55, the tuning varies. (with circuit diagram extract)
• No functions. (picture attached)
• "F7" on OSD. No audio and stuck on channel. OK after 20 mins.
• No or poor operation of RC and front controls. No picture when cold. (with circuit diagram extract)
• Incorrect OSD characters.
• 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.
• "F7" displayed.
• No horizontal synchronisation. in TXT. (part of circuit diagram displayed)
• No sound, F7 error code LED flashes. (part of circuit diagram displayed)
• Switches spontaneously to program 1. (with circuit diagram extract)
• Poor line synchronisation. (with circuit diagram extract)
• Outlines are distorted in the top part of the picture and intermittently no colour.
• Noise from PSU.
• No E/W, oscillation wide in narrow field on right side.
• No tuning.
• Crackling/bubbling sound from speaker when switched to standby after a short time. (extract of circuit diagram attached)
• Picture becomes narrow, lighter and disappears.
• Picture flares. (part of circuit diagram displayed)
• Ragged picture. Dim display. (+ extract of circuit diagram)
• Stuck on channel 8. No front controls or R/C operations. Standby LED flashing. (+ extract of circuit diagram)
• Tuning drifts. (+ extract of circuit diagram)
• Does not tune optimally. (+ extract of circuit diagram)
• No picture. No sound. No RC function. LED lights up green.
• Poor tuning. Search sometimes does not stop. Picture shifted and trembles. (with circuit diagram extract)
• The voltage of +95V line alters. (extract of circuit diagram attached)
• The R3661 resistor is in open circuit. (+ extract of circuit diagram)
• Page 811 appears by itself and is blocked.
• No vertical deflection. (picture attached)
• If appliance is switched to standby when cold, it starts pumping. Other functions OK.
• Line tearing at vertical lines from top to bottom in test picture.
• Intermittently sound mutes and OSG are jumbled.
• Intercarrier buzzing is audible. (PHILETTA2423 BAUR repair tip)
• Rattle in sound. (part of circuit diagram displayed)
• F7 error clears after a few minutes. (extract of circuit diagram attached)
• Light picture content with coloured background. (service info for BAUR -PHILETTA2423)
• Tuning drifts. Poor picture (when cold).
• No teletext. No F7 error. Can still change channels in text mode.
• No picture content for the first ten minutes. White picture with flybacks lines. (service info for BAUR -PHILETTA2423)
• Shuts down. after a while.
• The power supply gurgles if the mains voltage is weak. (extract of circuit diagram attached)
• Picture is bowing on edges for couple of minutes.
• Blue picture. (extract of circuit diagram attached)
• Hum in audio. Horizontal lines.
• Hiccups and returns to channel 1. Unable to reset. (picture attached)
• No signal to the collector BUT11AF. (extract of circuit diagram attached) (PHILETTA2423 BAUR repair tip)
• Searches for channels continuously. (extract of circuit diagram attached)
• Does not respond to commands in first 5 mins.
• No tuning search. No channels change. No numbers on display.
• The remote control and the operation unit shut off after approx.10 min.Later strange symbols appear on the screen. (picture attached)
• LED blinks in STANDBY mode. (with circuit diagram extract)
• Line pairing at top half of picture. (+ extract of circuit diagram)
• No picture.
• Loss of sound. STEREO/MONO indication lit. (PHILETTA2423 BAUR repair tip)
• Tuning drifts (intermittently). (extract of circuit diagram attached) (service info for BAUR -PHILETTA2423)
• Trips with power LED flashing and speaker popping in unison. (picture attached)
• +95V is incorrect. (extract of circuit diagram attached)
• 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. (PHILETTA2423 BAUR repair tip)
• No reaction from front controls and RC. Also no switchover possible to HF.
• Picture jitters.
• No picture. at start-up.
• Supply voltage cuts out, appliance whistles. (service info for BAUR -PHILETTA2423)
• A production change:
• Tripping (after start-up). (with circuit diagram extract)
• Displaying error code F7 intermittently. (with circuit diagram extract)
• PSU shutsdown with popping sound. LEDs flashing.
• Jumps to channel 1 or switches off itself. (part of circuit diagram displayed)
• Blocks and wrong OSD indication.
• Fault codes F4 or F7 with no signals and orange LED.
• No adjustment to low volume. (+ 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.
• In TXT, takes about 60 secs to build up page. Page never quite fills up completely with data, thus looking confusing.
• Shape of picture is wrong. The fault is more evident in text mode. Also thin black horizontal lines.
• Black lines in picture, then no picture. (BAUR - PHILETTA2423 information)
• No functions. LED blinks . (+ extract of circuit diagram)
• Lines in picture. (picture attached)
• Picture only 3cms high.
• The raster pulls. (part of circuit diagram displayed)
• Intermittently returns to channel 1, accompanied by a sound of arcing around tube base.
• Dead. Power LED lit . (+ extract of circuit diagram)
• Breakdown of T7625. (part of circuit diagram displayed)
• No picture. TXT OK .
• Intermittent fuse blowing, blows BUT11AF. (part of circuit diagram displayed)
• Trips few mins after switch on, increasing in speed until popping approx twice per sec. (+ extract of circuit diagram)
• Only chroma lines in VCR.
• No picture. AV OK . (+ extract of circuit diagram)
• No function. Rapid loud popping noise with synchronised standby LED flashing. (PHILETTA2423 tip from BAUR)
• F0, UHF and P1 indication after approx 30 mins then no function.
• Snowy raster. (extract of circuit diagram attached)
• Blurry picture. Audio OK .
• Difficult front control operation.
• Not operational. F7 in picture.
• Hum (interference noise) from speaker in standby. (+ extract of circuit diagram)
• No or poor synchronisation. (PHILETTA2423 tip from BAUR)
• Black horizontal lines in picture.
• Blank raster. TXT OK . (extract of circuit diagram attached)
• Does not switch to standby.
• Only programme 6 at switch on. F7 on display. No control. No function of keys or RC. (with circuit diagram extract)
• Stops when warm. Display shows F7.
• Tripping (intermittently).
• Teletext faults. Page 811 appears spontaneously. (+ extract of circuit diagram)
• No focus.
• Only noise, otherwise no functions or display.
• Tuned stations change constantly in the upper tuning areas VHF (B III) and UHF.
• Dead. (extract of circuit diagram attached)
• Blows fuse.
• Horizontal jitter. in the centre.
• No colour. (+ extract of circuit diagram)
• No tuning. only on certain channels.
• PSU pulsates.
• The mains transistor BUT11 permanently blows at switch on. (part of circuit diagram displayed)
• Memory loss. (with circuit diagram extract)
• F5 Error on sets with satellite RX. (service info for BAUR -PHILETTA2423)
• Reduced vertical size. Vertical foldover at top. (picture attached)
• F4 Error with arrows on sets with satellite RX.
• Random failure of the BUT11AF chopper transistor. (+ extract of circuit diagram)
• Vertical foldover. Flyback lines.
• Reduced vertical size. (with circuit diagram extract)
• Low picture contrast. Cannot be controlled via user control.
• Intermittent standby; loss of signals, colour and contrast. (with circuit diagram extract)
• No synchronisation. when cold. (extract of circuit diagram attached)
• No text, front controls perform wrong task. (part of circuit diagram displayed)
• Low contrast. (+ extract of circuit diagram)
• Sound is distorted and disappears as the volume is turned up. (picture attached) (service info for BAUR -PHILETTA2423)
• After approx 30 mins faulty OSD and no function. No start-up furthermore.
• Only part picture can be seen, sound OK. (extract of circuit diagram attached)
• No colour in French standard.
• TS 7625 breaks frequently. (picture attached)
• No line oscillation. (PHILETTA2423 BAUR repair tip)
• "F7" displayed on OSD, LED flashes and user controls inoperative. (BAUR - PHILETTA2423 information)
• Blocked control. Error F7. LED flashing.
• Erratic clock.
• Switches off by itself.
• Over-voltage circuit active. (+ extract of circuit diagram) (BAUR - PHILETTA2423 information)
• Fluttering noise.
• Defective switching transistor in the SOPS supply. (extract of circuit diagram attached)
• Switches off automatically for a short time and restarts with program1. Picture drops out or switches off.
• PSU blows immediately at every switch on.
• Sometimes remains in standby when switched on with the help of mains switch.
• Thin horizontal black lines in upper picture area. Error is shock sensitive in the beginning, then becomes permanent.
• BUT11AF is defective and is destroyed at each start up. (with circuit diagram extract) (BAUR - PHILETTA2423 information)
• Video signal and sound are missing, raster is blank. (+ extract of circuit diagram)
• Black dots in the bright-white spots. (PHILETTA2423 tips)
• Light and dark vertical lines on left of picture. TXT does not function. OK when warm. (extract of circuit diagram attached)
• No regulation. (with circuit diagram extract)
• Reset after a no. of hours, switches back to programme 1.
• Limited contrast control range. (with circuit diagram extract)
• No sound and "F7" on OSD, OK after 20 mins. (PHILETTA2423 tips)
• Tripping. at start-up. (service info for BAUR -PHILETTA2423)
• Missing 95V.
• No red in the picture with an RGB input.
• Intermittent audio. (extract of circuit diagram attached) (BAUR - PHILETTA2423 information)
• No red.
• No colour (at start-up). (extract of circuit diagram attached)
• Intermittently strange signs in picture. No function of RC. (picture attached)
• Data lead to microprocessor on main board from satellite RX.
• EHT low and line output transformer makes a fizzing noise. (extract of circuit diagram attached)
• The output transistor of the power supply is defective. BUT11AF, BUT18AF or 2SC3973B. (+ extract of circuit diagram)
• No tuning. No display. No RC functions. (part of circuit diagram displayed)
• Pulsing, rolling with jagged white line at top of screen.
• Vertical collapse. (with circuit diagram extract)
• Trips, plop in speakers.
• Squealing from PSU.
• Upper part of picture consists of a few lines. (part of circuit diagram displayed) (PHILETTA2423 tips)
• Stuck in standby.
• Doesn't start, at switch-on LED green, then goes back to standby, doesn't respond to RC.
• Mono/stereo display error.
• No channel storing.
• When warm there is a raster fault on the left.
• Incorrect characters on the screen.
• U743 tuner replacement.
• Tripping with clicking via speaker. (+ extract of circuit diagram)
• Spot lights after switching off. (part of circuit diagram displayed)
• Poor audio. (extract of circuit diagram attached)
• Sizzling/picture distortion.
• The voltage is too weak. (extract of circuit diagram attached)
• No OSD. (part of circuit diagram displayed)
• No start-up. Green LED flashes .
• Useful voltages to check on satellite RX board
• Reduced horizontal size. (PHILETTA2423 BAUR repair tip)
• Line output transformer information.
• Certain channels drop out in UHF range.
• Excessive vertical and horizontal size. (part of circuit diagram displayed)
• Set blocks. (with circuit diagram extract)
• The power supply is noisy in standby. (picture attached)
• Intermittently trips. Picture pulses to low width. Reduced height. Raster flashes.
• Poor functioning of RC receiver at switch on from standby. RC must be close to IR receiver.
• Picture darkens slightly with remote control commands having no effect after about 2 hours. Display shows F4 or F7. (extract of circuit diagram attached)
• Picture becomes dark from time to time, cannot be adjusted. (picture attached)
• Bright raster. Poor vertical linearity. (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)
• No picture. OSD OK . (part of circuit diagram displayed) (service info for BAUR -PHILETTA2423)
• Does not go to standby via RC; LED on set changes from green to orange (should be red).
• Dead. LED blinks .
• How to convert from G90 + SAT RX to standard G90.
• Standby LED continuously flashing.
• Disable hotel mode.
• Low HV. intermittently. (+ extract of circuit diagram)
• No blue. (+ extract of circuit diagram)
• The "LE" voltage is less than 100V. (part of circuit diagram displayed)
• Shuts down (after a few minutes). PSU pulsates.
• Humming, ticking. (part of circuit diagram displayed)
• Line lock is incorrect.
• Line output transistor 7545 (BUT11AF) fails after a while.
• After operating for approx 1.5 hours the appliance switches to search mode by itself. (BAUR - PHILETTA2423 information)
• Manufacturing error.
• White screen. (part of circuit diagram displayed)
• On PB strange symbols or text appears on the screen.
• Snowy picture. No sound. LED flashes alternately green and yellow. No control via user control and RC. After approx. 5 mins operation, functions ok.
• Chroma fault in SECAM. (picture attached)
• Interference lines when cold but not when warm.
• Tripping. (part of circuit diagram displayed)
• Lines in light areas and letters. Improves when contrast reduced. (picture attached)
• After working normally for approx 2 hours, the TV blocks. "EX" appears on the screen. The remote control receiver does not function.
• Sound crackles and LED flashes green in the same rhythm.
• Occasional picture foldover at the top on certain programas when changing picture or channel.
• Intermittently displaying error code F7.
• When appliance is switched on it jumps to channel 3 then when the appliance is warm it shuts down. (extract of circuit diagram attached)
• Teletext faults. Set very intermittently shows error F7. (extract of circuit diagram attached)
• Erratic functions on satellite RX.
• Cycles on/off (intermittently).
• Vertical streaks at the left of the picture which disappear after a while. (with circuit diagram extract)
• No horizontal deflection. Standby LED flashes .
• Dark picture. (with circuit diagram extract)
• "F7" on OSD. No sound. LED flashing. OK after 20 mins. (+ extract of circuit diagram)
• Purity fault. (BAUR - PHILETTA2423 information)
• Dead. Standby LED flashes . (BAUR - PHILETTA2423 information)
• Zig-Zags edges on picture.
• For 5 minutes zigzag edges in the picture. (+ extract of circuit diagram)
• Character error.
• One colour missing. (part of circuit diagram displayed) (BAUR - PHILETTA2423 information)
• Flashover on picture tube print. (with circuit diagram extract) (service info for BAUR -PHILETTA2423)
• Does not tune properly and will not stop on stations. (picture attached)
• No RC functions. (part of circuit diagram displayed)
• Switches back to program 1.
• Intermittently F4 appears. Dark picture.
• Appliance runs perfectly, switches to standby then pumps the PSU.
• Does not function well. Wrong characters on screen. (picture attached) (PHILETTA2423 tips)
• Low output from power supply.
• Teletext faults. Characters wrong. (part of circuit diagram displayed)
• To loop the video through not using circuitry on satellite RX.
• No audio (intermittently). (part of circuit diagram displayed)
• No picture. in the centre.
• Corrugated verticals. (+ extract of circuit diagram)
• No switch to AV. EXT1 or EXT2.
• Intercarrier-hum. (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.
• No picture. Blank raster. (+ extract of circuit diagram) (PHILETTA2423 tips)
• No functions. after a few minutes.
• The BUT11AF is destroyed after some time. (+ extract of circuit diagram)
• Distorted picture. when cold.
• 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)
• Only one horizontal line at bottom of screen.
• 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.
• Destroys BUT11 and bridge rectifiers on switch on. (+ extract of circuit diagram)
• Lines in picture. on the left.
• Horizontal collapse (intermittently).
• After tuning the channels cannot be stored. The appliance memorises one channel by itself. (with circuit diagram extract) (PHILETTA2423 BAUR repair tip)
• Pal/Secam chroma identification problem.
• Does not switch on when cold. Strange oscillating noise from PSU. Green LED flashes quickly. Picture appears after a few mins but extremely noisy.
• Horizontal picture pulling especially with vertical lines. Fault disappears when warm. (+ extract of circuit diagram)
• No audio. Picture OK . (part of circuit diagram displayed)
• Shuts down. (part of circuit diagram displayed)
• IC7720 does not function correctly. (extract of circuit diagram attached)
• D5770 (ZTK33B) fails repeatedly. No tuning or tuning drifts. (with circuit diagram extract)
• No text, F7 displayed. (part of circuit diagram displayed)
• No synchronisation. (with circuit diagram extract) (service info for BAUR -PHILETTA2423)
• Cogging down sides of picture. (picture attached)
• Codes F4 or F7 with no signals and LED orange.
• Faulty OSD.
• PSU failure.
• No TXT. No picture. after a while.
• Protection IC7380 BB panel.
• CDI picture comes through on TXT with G90AE chassis.
• No VHF1 and VHF3 function.
• Wide oscillation in the weak field on the right hand side. (part of circuit diagram displayed)
• Appliance works perfectly for a few days and then all the components burn out on the primary side of the switching circuit. (picture attached)
• Flyback lines. at top.
• No sound at switch on. Picture is present. "F7" displayed on screen. No RC. Everything OK when warm.
• No line timebase operation. (picture attached)
• Drifts through the tuning, unprogrammable. (BAUR - PHILETTA2423 information)
• Dead (intermittently).
• No sound. No channels switching. Error code F7 appears on screen (TXT board). (PHILETTA2423 BAUR repair tip)
• Insufficient contrast. When readjusting, brightness is also adjusted. teletext is O.K. (part of circuit diagram displayed)
• Tuning drift or no signals though the green bar moves. (with circuit diagram extract)
• Light spot after switch off. (extract of circuit diagram attached)
• No picture. Audio OK . (with circuit diagram extract)
• No start-up. Squealing from PSU.
• No tuning. Snow in picture. (with circuit diagram extract)
• Popping noise from speakers, only at switch on.
• Horizontally torn picture.
• Chopper transistor (BUT11AF) S/C. (with circuit diagram extract)
• No synchronisation (intermittently).
• Cycles on/off.
• Short circuit in the power supply.
• 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.
• Vertical shaking. No synchronisation.
• Fine, dark horizontal lines when warm.
• Picture and sound are missing, LED flashes at switch on, ok in standby.
• Does not stop when sweep tuning. Drifts if manually tuned. (with circuit diagram extract)
• Blank raster. No sound. No OSD. RC LED does not flash when a command is transmitted. (part of circuit diagram displayed)
• Raster lines at the top of the picture, approx. 5 cm wide.
• Display has corrugated verticals. (+ extract of circuit diagram)
• No audio. No picture. (extract of circuit diagram attached)
• Shutsdown with motorboating noise after 10 minutes.
• Appliance stuck on programme "1". OSD shows F7.
• Picture is missing, LED displays F4. (extract of circuit diagram attached)
• F7 upon switch on, or intermittent F7.
• Distorted picture. OK via SCART . (PHILETTA2423 tip from BAUR)
• Addition of fuse 1670.
• Vertical striations and shading on left hand side of picture accompanied by smearing. Intermittent loss of line lock.
• Faulty TXT.
• Error codes.
• Squealing from PSU. Audio and picture OK . (extract of circuit diagram attached)