PHILETTA2523 / BAUR [TV]

• Intermittently returns to channel 1, accompanied by a sound of arcing around tube base.
• Horizontal picture pulling especially with vertical lines. Fault disappears when warm. (extract of circuit diagram attached) (PHILETTA2523 BAUR repair tip)
• No synchronisation. (with circuit diagram extract)
• Does not go to standby via RC; LED on set changes from green to orange (should be red).
• Low HV. intermittently. (part of circuit diagram displayed)
• Poor line synchronisation. (+ extract of circuit diagram)
• Poor functioning of RC receiver at switch on from standby. RC must be close to IR receiver.
• No picture. AV OK . (part of circuit diagram displayed)
• Light picture content with coloured background.
• The voltage of +95V line alters. (+ extract of circuit diagram)
• Picture only 3cms high.
• When appliance is switched on it jumps to channel 3 then when the appliance is warm it shuts down. (picture attached)
• Reset after a no. of hours, switches back to programme 1.
• Vertical striations and shading on left hand side of picture accompanied by smearing. Intermittent loss of line lock.
• Doesn't start, at switch-on LED green, then goes back to standby, doesn't respond to RC. (PHILETTA2523 tip from BAUR)
• The output transistor of the power supply is defective. BUT11AF, BUT18AF or 2SC3973B. (part of circuit diagram displayed)
• After tuning the channels cannot be stored. The appliance memorises one channel by itself. (part of circuit diagram displayed)
• No picture. in the centre.
• No tuning. Snow in picture. (part of circuit diagram displayed)
• PSU shutsdown with popping sound. LEDs flashing. (service info for BAUR -PHILETTA2523)
• Erratic clock.
• Random failure of the BUT11AF chopper transistor. (extract of circuit diagram attached)
• Incorrect characters on the screen.
• Vertical foldover. Flyback lines.
• Interference lines when cold but not when warm.
• Line tearing at vertical lines from top to bottom in test picture.
• Intermittently displaying error code F7.
• D5770 (ZTK33B) fails repeatedly. No tuning or tuning drifts. (part of circuit diagram displayed)
• Blurry picture. Audio OK .
• Standby LED continuously flashing. (PHILETTA2523 tip from BAUR)
• Hum (interference noise) from speaker in standby. (+ extract of circuit diagram)
• Over-voltage circuit active. (part of circuit diagram displayed)
• No horizontal deflection. Standby LED flashes .
• Does not function well. Wrong characters on screen. (part of circuit diagram displayed)
• No switch to AV. EXT1 or EXT2.
• F7 upon switch on, or intermittent F7. (PHILETTA2523 BAUR repair tip)
• No line oscillation.
• Teletext faults. Set very intermittently shows error F7. (extract of circuit diagram attached)
• No horizontal synchronisation. in TXT. (part of circuit diagram displayed)
• No sound, F7 error code LED flashes. (with circuit diagram extract) (PHILETTA2523 tips)
• No audio. No picture. (+ extract of circuit diagram)
• EHT low and line output transformer makes a fizzing noise. (extract of circuit diagram attached)
• Problems with FLOF TXT. Cannot find page 811 whereas in spite of this page is broadcast. TXT header remains on subtitling. (with circuit diagram extract)
• Zig-Zags edges on picture.
• No functions. (part of circuit diagram displayed)
• Jumps to channel 1 or switches off itself. (picture attached)
• Sometimes remains in standby when switched on with the help of mains switch.
• No functions. LED blinks . (picture attached)
• Tripping. (+ extract of circuit diagram)
• Rattle in sound. (+ extract of circuit diagram)
• Blue picture. (extract of circuit diagram attached)
• No audio (intermittently). (picture attached)
• Low picture contrast. Cannot be controlled via user control.
• Intercarrier-hum. (with circuit diagram extract) (BAUR - PHILETTA2523 information)
• Faulty TXT.
• Breakdown of T7625. (with circuit diagram extract)
• Disable hotel mode.
• No or poor synchronisation.
• Crackling/bubbling sound from speaker when switched to standby after a short time. (with circuit diagram extract)
• Picture flares. (extract of circuit diagram attached)
• No picture.
• Teletext faults. Page 811 appears spontaneously. (+ extract of circuit diagram)
• Memory loss. (extract of circuit diagram attached)
• Displaying error code F7 intermittently. (+ extract of circuit diagram)
• Lines in picture. (picture attached)
• Supply voltage cuts out, appliance whistles.
• Tripping with clicking via speaker. (extract of circuit diagram attached)
• Stops when warm. Display shows F7.
• The raster pulls. (extract of circuit diagram attached)
• F5 Error on sets with satellite RX.
• No synchronisation (intermittently).
• Reduced vertical size. Vertical foldover at top. (picture attached)
• "F7" displayed on OSD, LED flashes and user controls inoperative.
• Black horizontal lines in picture.
• Picture becomes narrow, lighter and disappears.
• Dark picture. (picture 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.
• LED blinks in STANDBY mode. (+ extract of circuit diagram)
• Only chroma lines in VCR. (PHILETTA2523 tip from BAUR)
• No VHF1 and VHF3 function.
• No E/W, oscillation wide in narrow field on right side.
• Picture is bowing on edges for couple of minutes.
• Picture jitters.
• CDI picture comes through on TXT with G90AE chassis.
• BUT11AF is defective and is destroyed at each start up. (extract of circuit diagram attached)
• Microprocessor/eprom screening plate.
• Character error.
• Black lines in picture, then no picture.
• No picture. Blank raster. (+ extract of circuit diagram) (service info for BAUR -PHILETTA2523)
• Only noise, otherwise no functions or display.
• Outlines are distorted in the top part of the picture and intermittently no colour.
• After a few hours there is a slight reduction of brightness. When changing channel manually the display reads F4 or F7. (with circuit diagram extract)
• No picture. Audio OK . (part of circuit diagram displayed)
• The power supply gurgles if the mains voltage is weak. (picture attached)
• Drifts through the tuning, unprogrammable.
• Light spot after switch off. (part of circuit diagram displayed)
• No synchronisation. when cold. (part of circuit diagram displayed)
• Line pairing at top half of picture. (extract of circuit diagram attached)
• Codes F4 or F7 with no signals and LED orange.
• Intermittently trips. Picture pulses to low width. Reduced height. Raster flashes.
• Manufacturing error.
• Horizontally torn picture.
• "F7" on OSD. No sound. LED flashing. OK after 20 mins. (with circuit diagram extract)
• A production change:
• Reduced vertical size. (+ extract of circuit diagram)
• Squealing from PSU. Audio and picture OK . (with circuit diagram extract)
• Dead. (picture 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. (BAUR - PHILETTA2523 information)
• No picture. at start-up. (PHILETTA2523 tip from BAUR)
• 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 regulation. (part of circuit diagram displayed)
• PSU blows immediately at every switch on.
• Upper part of picture consists of a few lines. (picture attached)
• Blank raster. TXT OK . (part of circuit diagram displayed)
• Shutsdown with motorboating noise after 10 minutes.
• No colour. (part of circuit diagram displayed)
• Defective switching transistor in the SOPS supply. (part of circuit diagram displayed) (PHILETTA2523 tips)
• Intermittently strange signs in picture. No function of RC. (+ extract of circuit diagram)
• Squealing from PSU.
• Thin horizontal black lines in upper picture area. Error is shock sensitive in the beginning, then becomes permanent. (PHILETTA2523 tip from BAUR)
• Black dots in the bright-white spots.
• Tuning drifts. Poor picture (when cold).
• Stuck on channel 8. No front controls or R/C operations. Standby LED flashing. (picture attached)
• No start-up. Squealing from PSU.
• "F7" displayed.
• Blank raster. No sound. No OSD. RC LED does not flash when a command is transmitted. (extract of circuit diagram attached)
• Set blocks. (picture attached)
• Erratic functions on satellite RX. (PHILETTA2523 tips)
• No text, front controls perform wrong task. (+ extract of circuit diagram)
• Shape of picture is wrong. The fault is more evident in text mode. Also thin black horizontal lines.
• Intermittent standby; loss of signals, colour and contrast. (+ extract of circuit diagram)
• No adjustment to low volume. (extract of circuit diagram attached)
• For 5 minutes zigzag edges in the picture. (picture attached)
• Snowy raster. (with circuit diagram extract)
• Wide oscillation in the weak field on the right hand side. (extract of circuit diagram attached)
• Strange signs in picture or text. EXT 1 and EXT 2.
• Poor tuning. Search sometimes does not stop. Picture shifted and trembles. (extract of circuit diagram attached)
• Tuning drifts (intermittently). (part of circuit diagram displayed)
• Does not switch to standby.
• No sound at switch on. Picture is present. "F7" displayed on screen. No RC. Everything OK when warm.
• Tripping. at start-up.
• Picture becomes dark from time to time, cannot be adjusted. (picture attached)
• Missing 95V.
• Stuck in standby. (PHILETTA2523 BAUR repair tip)
• Excessive vertical and horizontal size. (picture attached)
• Does not respond to commands in first 5 mins.
• No picture. TXT OK .
• Tripping (after start-up). (with circuit diagram extract)
• Bright raster. Poor vertical linearity. (with circuit diagram extract)
• Picture and sound are missing, LED flashes at switch on, ok in standby.
• No functions. after a few minutes.
• Fine, dark horizontal lines when warm.
• No picture content for the first ten minutes. White picture with flybacks lines.
• No tuning. only on certain channels. (BAUR - PHILETTA2523 information)
• No TXT. No picture. after a while.
• Trips with power LED flashing and speaker popping in unison. (with circuit diagram extract)
• Tuning drifts. (+ extract of circuit diagram)
• Noise from PSU.
• No tuning search. No channels change. No numbers on display. (PHILETTA2523 tip from BAUR)
• Raster lines at the top of the picture, approx. 5 cm wide. (BAUR - PHILETTA2523 information)
• Sizzling/picture distortion.
• F4 Error with arrows on sets with satellite RX.
• 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.
• Hiccups and returns to channel 1. Unable to reset. (part of circuit diagram displayed)
• Power supply defective.
• No tuning.
• The remote control and the operation unit shut off after approx.10 min.Later strange symbols appear on the screen. (with circuit diagram extract)
• Corrugated verticals. (with circuit diagram extract)
• Ragged picture. Dim display. (with circuit diagram extract)
• Mono/stereo display error.
• Light and dark vertical lines on left of picture. TXT does not function. OK when warm. (+ extract of circuit diagram) (PHILETTA2523 BAUR repair tip)
• 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.
• Data lead to microprocessor on main board from satellite RX.
• After approx 30 mins faulty OSD and no function. No start-up furthermore.
• No signal to the collector BUT11AF. (part of circuit diagram displayed)
• Teletext faults. Characters wrong. (with circuit diagram extract)
• Shuts down. (+ extract of circuit diagram)
• Trips few mins after switch on, increasing in speed until popping approx twice per sec. (with circuit diagram extract)
• No tuning. No display. No RC functions. (part of circuit diagram displayed)
• TS 7625 breaks frequently. (+ extract of circuit diagram)
• Dead. Standby LED flashes .
• +95V is incorrect. (+ extract of circuit diagram)
• No blue. (+ extract of circuit diagram)
• U743 tuner replacement.
• Purity fault.
• The "LE" voltage is less than 100V. (extract of circuit diagram attached)
• After working normally for approx 2 hours, the TV blocks. "EX" appears on the screen. The remote control receiver does not function. (PHILETTA2523 BAUR repair tip)
• Low contrast. (part of circuit diagram displayed)
• Pulsing, rolling with jagged white line at top of screen.
• On PB strange symbols or text appears on the screen.
• No start-up. Green LED flashes .
• Cogging down sides of picture. (part of circuit diagram displayed)
• Intermittently F4 appears. Dark picture.
• Limited contrast control range. (picture attached)
• Blows fuse.
• Does not stop when sweep tuning. Drifts if manually tuned. (extract of circuit diagram attached)
• Dead. Power LED lit . (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.
• No line timebase operation. (+ extract of circuit diagram)
• No function. Rapid loud popping noise with synchronised standby LED flashing.
• White screen. (extract of circuit diagram attached)
• No teletext. No F7 error. Can still change channels in text mode.
• Line output transformer information.
• Only programme 6 at switch on. F7 on display. No control. No function of keys or RC. (with circuit diagram extract)
• No picture. No sound. No RC function. LED lights up green.
• Sound crackles and LED flashes green in the same rhythm. (BAUR - PHILETTA2523 information)
• Fault codes F4 or F7 with no signals and orange LED.
• Lines in picture. on the left.
• After operating for approx 1.5 hours the appliance switches to search mode by itself.
• The mains transistor BUT11 permanently blows at switch on. (with circuit diagram extract)
• Chroma fault in SECAM. (picture attached)
• Only one horizontal line at bottom of screen.
• Vertical streaks at the left of the picture which disappear after a while. (with circuit diagram extract)
• PSU pulsates.
• Snowy picture. No sound. LED flashes alternately green and yellow. No control via user control and RC. After approx. 5 mins operation, functions ok.
• Protection IC7380 BB panel.
• No OSD. (part of circuit diagram displayed)
• The BUT11AF is destroyed after some time. (with circuit diagram extract)
• Shuts down. after a while.
• Difficult front control operation.
• Vertical collapse. (with circuit diagram extract)
• Incorrect OSD characters.
• When warm there is a raster fault on the left.
• Intermittent audio. (picture attached) (service info for BAUR -PHILETTA2523)
• Low output from power supply.
• Switches off by itself.
• Fluttering noise.
• Dead. LED blinks .
• "F7" on OSD. No audio and stuck on channel. OK after 20 mins.
• Occasional picture foldover at the top on certain programas when changing picture or channel.
• Sound is distorted and disappears as the volume is turned up. (part of circuit diagram displayed)
• Distorted picture. OK via SCART .
• Line transformer crackles. (PHILETTA2523 tips)
• Line lock is incorrect.
• Tuned stations change constantly in the upper tuning areas VHF (B III) and UHF.
• No RC functions. (+ extract of circuit diagram)
• The voltage is too weak. (+ extract of circuit diagram)
• No sound and "F7" on OSD, OK after 20 mins.
• Spot lights after switching off. (+ extract of circuit diagram)
• F0, UHF and P1 indication after approx 30 mins then no function.
• Faulty OSD.
• IC7720 does not function correctly. (+ extract of circuit diagram)
• Useful voltages to check on satellite RX board
• Trips, plop in speakers.
• Lines in light areas and letters. Improves when contrast reduced. (with circuit diagram extract)
• Cycles on/off.
• No audio. Picture OK . (picture attached)
• Dead (intermittently).
• How to convert from G90 + SAT RX to standard G90.
• 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.
• F7 error clears after a few minutes. (part of circuit diagram displayed)
• Page 811 appears by itself and is blocked.
• The appliance will not tune stations higher than 55, the tuning varies. (picture attached)
• Insufficient contrast. When readjusting, brightness is also adjusted. teletext is O.K. (part of circuit diagram displayed)
• Horizontal collapse (intermittently).
• Video signal and sound are missing, raster is blank. (+ extract of circuit diagram)
• Destroys BUT11 and bridge rectifiers on switch on. (picture attached) (BAUR - PHILETTA2523 information)
• Flyback lines. at top.
• Switches off automatically for a short time and restarts with program1. Picture drops out or switches off.
• Searches for channels continuously. (part of circuit diagram displayed)
• Picture darkens slightly with remote control commands having no effect after about 2 hours. Display shows F4 or F7. (extract of circuit diagram attached)
• Shuts down (after a few minutes). PSU pulsates.
• No or poor operation of RC and front controls. No picture when cold. (with circuit diagram extract)
• PSU failure.
• Certain channels drop out in UHF range. (BAUR - PHILETTA2523 information)
• Picture is missing, LED displays F4. (picture attached)
• The R3661 resistor is in open circuit. (picture attached)
• Switches back to program 1.
• Does not tune properly and will not stop on stations. (picture attached)
• No colour in French standard.
• Intermittently sound mutes and OSG are jumbled. (BAUR - PHILETTA2523 information)
• Tuning drift or no signals though the green bar moves. (picture attached)
• Only part picture can be seen, sound OK. (part of circuit diagram displayed) (BAUR - PHILETTA2523 information)
• Does not switch on when cold. Strange oscillating noise from PSU. Green LED flashes quickly. Picture appears after a few mins but extremely noisy.
• Not operational. F7 in picture.
• To loop the video through not using circuitry on satellite RX.
• One colour missing. (extract of circuit diagram attached)
• If appliance is switched to standby when cold, it starts pumping. Other functions OK.
• Intermittent fuse blowing, blows BUT11AF. (picture attached)
• Blocks and wrong OSD indication.
• No vertical deflection. (picture attached)
• No red in the picture with an RGB input.
• Error codes.
• No text, F7 displayed. (part of circuit diagram displayed)
• Blocked control. Error F7. LED flashing.
• No colour (at start-up). (part of circuit diagram displayed)
• No focus.
• Cycles on/off (intermittently).
• Short circuit in the power supply.
• Intercarrier buzzing is audible.
• Flashover on picture tube print. (picture attached)
• No red.
• No picture. OSD OK . (part of circuit diagram displayed)
• Hum in audio. Horizontal lines.
• Line output transistor 7545 (BUT11AF) fails after a while.
• Reduced horizontal size.
• Loss of sound. STEREO/MONO indication lit.
• Appliance stuck on programme "1". OSD shows F7.
• Popping noise from speakers, only at switch on.
• Switches spontaneously to program 1. (with circuit diagram extract)
• Display has corrugated verticals. (with circuit diagram extract)
• Humming, ticking. (+ extract of circuit diagram)
• Poor audio. (+ extract of circuit diagram)
• The power supply is noisy in standby. (with circuit diagram extract)
• Does not tune optimally. (extract of circuit diagram attached)
• No channel storing.
• Pal/Secam chroma identification problem.
• Chopper transistor (BUT11AF) S/C. (with circuit diagram extract)
• No reaction from front controls and RC. Also no switchover possible to HF.
• Addition of fuse 1670. (BAUR - PHILETTA2523 information)
• Horizontal jitter. in the centre.
• Tripping (intermittently).
• Appliance runs perfectly, switches to standby then pumps the PSU.
• No sound. No channels switching. Error code F7 appears on screen (TXT board).
• Distorted picture. when cold.
• Vertical shaking. No synchronisation. (PHILETTA2523 BAUR repair tip)
• Appliance works perfectly for a few days and then all the components burn out on the primary side of the switching circuit. (with circuit diagram extract)