20GR125002B / PHILIPS [TV]

• No horizontal synchronisation. (part of circuit diagram displayed)
• No audio.
• Tuning menu can not be called. All other functions OK.
• Sound motorboating when cold. (picture attached) (20GR125002B tip from PHILIPS)
• No functions. Sound buzzes in loudspeaker. (+ extract of circuit diagram)
• No power with abnormal sound. (+ extract of circuit diagram)
• No picture. No sound. Switching on and off from Standby OK.
• How to de-activate Hotel mode.
• Defective purity.
• Programming unoperational. Limited sound adjustment possible.
• Intermittent colour.
• Correction to service manual LOT winding.
• Picture fails for a short time. (+ extract of circuit diagram)
• Dead when switched on via mains switch. Though appliance is on, red LED flashes. Can be switched over to standby. If left in standby for 1 hour and then switched on via RC, functions.
• No regulation. (+ extract of circuit diagram) (PHILIPS - 20GR125002B information)
• Excessive HV. after a while.
• Random breakdown of line output transistor. (extract of circuit diagram attached)
• No audio.
• Enable Hotel mode. Disable hotel mode.
• Doesn't store stations correctly.
• Line tearing, especially with bright scences. (+ extract of circuit diagram)
• Comes on in standby. When program button pressed standby lamp blinks then goes off.
• Cannot be programmed and search does not function. Only limited volume adjustable.
• Connection of a loop system to the TV.
• Won't tune a new channel. Won't activate store function. Picture OK. Sound OK.
• No audio.
• No functions. Standby LED flashes. Relay switches to ON.
• New infra red receiver.
• Colours flickers and disappears.
• Volume change with great fluctuations in brightness. (part of circuit diagram displayed)
• Set does not retune or program etc
• No start up from cold and humming.
• Intermittent audio and picture. (+ extract of circuit diagram) (20GR125002B tip from PHILIPS)
• Programme tuning difficulty. Stations has shifted on tuning bar.
• The TV cannot hold the picture.
• No colour and vertical black bar across screen.
• No picture (when cold).
• Appliance does not function with standby light flashing.
• No picture. (picture attached)
• Display goes to F1 a few seconds after switching the set on.
• Line chirps intermittently. Appliance does not start. Only hum from loudspeakers.
• Green picture. after warm-up. Lines in picture. after warm-up. Does not change channels. (PHILIPS - 20GR125002B information)
• Volume varies. depending on picture content. (with circuit diagram extract)
• Line output stage only starts up for a short time. (+ extract of circuit diagram)
• Dim picture with Hanover bars.
• Lines across top of picture about 8" in first 100 lines. (with circuit diagram extract) (20GR125002B PHILIPS repair tip)
• Focus adjustment.
• To put into hotel mode. (20GR125002B tips)
• Dead set. Tries to start.
• Menu rolling. (extract of circuit diagram attached)
• Stored channels drift off tune briefly after switch on. Crackle in sound.
• Does not start. Slight buzzing in loudspeaker.
• SOPS defective. (extract of circuit diagram attached)
• No start up, just a buzzing noise in speakers. (extract of circuit diagram attached)
• Fizzling sound from speakers at start-up and intermittently picture jagged.
• PSU does not start up, if appliance was switched off for a day. Appliance functions after short switch on/off. (picture attached)
• Tripping. (part of circuit diagram displayed)
• Picture shifted to the right. (part of circuit diagram displayed)
• Settings do not stay in position. (PHILIPS - 20GR125002B information)
• Control micro processors.
• Print with linearity coil pos. 5800. (PHILIPS - 20GR125002B information)
• After replacement of the line output transistor BUT12, picture with trapezoid effect, BUT12 overheats and goes defective again. (with circuit diagram extract)
• Whistle.
• Occasionally appliance does not switch on from standby. No further functions are possible.
• No operation.
• Stations won't change. Picture and sound OK. Other functions OK. (PHILIPS - 20GR125002B information)
• Hazy flickering picture at top. (part of circuit diagram displayed)
• No switch on. Weak whistling noise from PSU. LED is OFF.
• Right hand side of screen has a line.
• Frame has shifted sideways. Appliance whistles and does not oscillate correctly. (with circuit diagram extract)
• Low audio.
• No start-up. intermittently (when cold). (part of circuit diagram displayed)
• Hums softly. (part of circuit diagram displayed)
• Poor sync. AGC fault.
• Green raster. Faint picture. Flyback lines.
• No picture or sound but RCU works correctly. LED flashes when the handset is tried. (with circuit diagram extract) (20GR125002B tip from PHILIPS)
• Sometimes when turned on, green screen only with flyback lines, at other times no tuning and channel will not change. (part of circuit diagram displayed)
• SIF DET adjustment procedure.
• Colour disappears with VCR-scan (picture search). (with circuit diagram extract)
• Noise in audio.
• How to de-activate Hotel-Mode.
• V-centre adjustment procedure. (20GR125002B PHILIPS repair tip)
• No picture, only squeaks for a short time at switch on then no more functions.
• Searches for channels continuously. (picture attached)
• No colour.
• Drive for high voltage missing. (part of circuit diagram displayed) (20GR125002B tip from PHILIPS)
• No tuning. (with circuit diagram extract)
• No +9V, line output stage is OK. (part of circuit diagram displayed)
• No channel search. No OSD. (+ extract of circuit diagram)
• Line output transistor fails repeatedly. (part of circuit diagram displayed)
• Vertical roll. (with circuit diagram extract)
• Vertical collapse. (picture attached)
• Field foldover at switch on from cold. Effect disappears when appliance warms up. (+ extract of circuit diagram)
• Change of C2523.
• Line tearing. on lower half screen. (with circuit diagram extract)
• Change of C2523.
• Volume goes to max. No volume control.
• Does not switch on. LED is lit in standby. If appliance is switched on with RC, LED switches off. (20GR125002B tip from PHILIPS)
• During picture changes sometimes a volume increase (plop) is heard. (picture attached)
• Power supply does not oscillate. (part of circuit diagram displayed)
• Excessive brightness.
• Error codes.
• Does not switch on, standby LED OK.
• No freeze frame or intermittent freeze frame; no sound. (+ extract of circuit diagram)
• Local controls inoperative.
• No picture. No audio. (extract of circuit diagram attached) (20GR125002B tip from PHILIPS)
• How to switch off Hotel-Mode:
• High voltage transistor defective after a while.
• Vertical vibration in cold condition of set.
• Reluctant to start up from cold.
• Initial volume level is higher than maximum Hotel mode setting.
• No frame or short frame. (extract of circuit diagram attached)
• Identification coil adjustment.
• Intermittently no picture and sound at switch on. Buzz from speaker. (picture attached) (20GR125002B tips)
• Tuning procedure. (20GR125002B tips)
• Excessive vertical size.
• Initial volume level is higher than maximum Hotel mode setting.
• Difficult startup. Rattling sound from line output trafo.
• No output from the chopper power supply which uses a junction FET, whose gate and source are at 12V while 300V is present at the drain. (part of circuit diagram displayed)
• Blank raster. No audio. after a while. (part of circuit diagram displayed)
• Becomes defective immediately after switch on.
• After working normally for a while the TV blocks in any position. The functions do not work.
• Cannot change tuning or stored settings. (part of circuit diagram displayed)
• Sound goes to max. intermittently and HT varies. (part of circuit diagram displayed)
• Modification introduced to +9V supply.
• Reduced horizontal size. (extract of circuit diagram attached)
• Colour flickers. No colour. after a while. (extract of circuit diagram attached) (20GR125002B PHILIPS repair tip)
• Spurious nonsense OSG. Goes to standby after 0.5-2hrs. Loss of tuning.
• Smeary, washed out picture with bent verticals. (with circuit diagram extract)
• No tuning or on screen tuning display.
• Trips. at start-up (intermittently). (part of circuit diagram displayed)
• New IR receiver.
• How to de-activate volume limiter. (20GR125002B tips)
• No picture. OSD OK .
• Stored channels are partially lost.
• Dead with whistling noise coming from power supply. (part of circuit diagram displayed)
• To release hotel mode (child lock).
• How to enter/exit HOTEL mode.
• No sound or raster. The 95V HT supply is present at the line output stage but there is no line drive. (part of circuit diagram displayed)
• Whistling from PSU. (extract of circuit diagram attached)
• PSU check.
• Green screen with flyback line. No picture. OSD OK.
• Will not tune, drifts, colour disappears or interference on a certain channel. (e.g. channel 5 and 59)
• Does not shut down (when cold). (20GR125002B tip from PHILIPS)
• 10V on 95V line. (picture attached)
• Automatic fine tuning (AFT) field alignment procedure.
• Rolling or jittering picture. (part of circuit diagram displayed)
• No picture. Audio OK .
• CRT types.
• Picture displays lines and strange foldover effect at centre.
• Limited volume. No channel search.
• No tuning.
• Only some programs with snowy picture can be tuned and on band 1 missing some programs. (extract of circuit diagram attached)
• Tuning drifts. only on certain channels.
• Line out of phase. Black band in centre of screen. No colour.
• Control panel cover.
• Appliance hums slightly (no speaker) horizontal end stage and power supply transistor are ok. Unfortunately no service instructions available.
• Blank or green raster. Flyback lines. Faint picture or normal picture. (part of circuit diagram displayed)
• The removal of leaded diodes. (picture attached)
• No standby, humming and standby LED blinks.
• Using a lamp as a load.
• Streaks in picture. Picture pulls and rolls intermittently.
• Picture is faint with hanover bars. (+ extract of circuit diagram)
• No start-up. intermittently.
• Strongly distorted sound by low volume.
• Programme channel search cannot be called up.
• Dead, very slight whistle from PSU.
• Buzzing sound then switches off.
• Trips. (with circuit diagram extract) (20GR125002B tips)
• Poor synchronisation. (extract of circuit diagram attached)
• Vertical oscillator adjustment procedure.
• Blank raster. OSD OK .
• Vertical line. on the right half screen. (picture attached) (service info for PHILIPS -20GR125002B)
• Protection device (thyristor THY6641) is triggered at switch on. (+ extract of circuit diagram)
• Does not regulate +95V.
• Line output transistor replacement.
• Buzz in audio. No picture.
• "Store" key does not work. (picture attached)
• No colour. (with circuit diagram extract)
• Horizontal oscillator adjustment procedure.
• No functions. when cold.
• No line output.
• No switch on after activating mains switch. Whistling noise. (with circuit diagram extract)
• The picture is slightly yellow, flyback lines. Slightly noisy, no own recording possible.
• U743 tuner replacement. (+ extract of circuit diagram)
• To improve performance with prerecorded cassettes. (picture attached)
• The tone (sound) tunes well, but the volume cannot be raised.
• No power supply start up in loaded condition (eg. with lamp).
• Humming, motor noise and other unusual noises. Normal picture.
• Microprocessor screening plate. (extract of circuit diagram attached)
• Replacement of surface mounted diode 6637. (part of circuit diagram displayed)
• Intermittent green picture, channels cannot be programmed. (part of circuit diagram displayed)
• No start up. No standby. Attempts to start up, but fails. (20GR125002B tip from PHILIPS)
• No audio.
• Unable to tune or set volume in Prefix mode.
• Buzzing.
• Line output stage does not start up. (picture attached)
• Processor numbers (changed).
• Slow start-up.
• Picture shifted to the left. intermittently. Line tearing. intermittently. (extract of circuit diagram attached)
• 6613 type change. (part of circuit diagram displayed)
• Search jumps on UHF.
• No functions, hum in loudspeakers. (extract of circuit diagram attached)
• Turns on automatically. No RC or front panel controls.
• Set dead with just 5V on the 95V line. Standby LED is on but set won't start. (part of circuit diagram displayed)
• No functions. after start-up (intermittently). (service info for PHILIPS -20GR125002B)
• No transmitters to adjust and the sound is not controllable. (20GR125002B tip from PHILIPS)
• Line output stage does not function.
• Hotel Mode activates by itself. (picture attached)
• Bell filter adjustment procedure.
• Error messages indicated by front display flashing. (part of circuit diagram displayed)
• Slow hiccup (extract of circuit diagram attached)
• Failures in the power supply. (+ extract of circuit diagram)
• No colour.
• No colour.
• Set won't tune to high frequency channels and lower frequency channels appear to be higher. (with circuit diagram extract)
• Adjustment of +95V. (with circuit diagram extract)
• No tuning - no channels.
• Unstable tuning.
• No OSD. Picture OK .
• Microcomputers and screening plate.
• Whistling.
• No HT from chopper circuit. (with circuit diagram extract)
• No vertical deflection. (part of circuit diagram displayed)
• Intermittent colour.
• No tuning possible, F2 appears on bottom of picture and S1 on top. (20GR125002B tips)
• No tuning. Impossible to change analog control adjustments (brightness, sound, etc.). (+ extract of circuit diagram)
• No line output stage. (extract of circuit diagram attached)
• PAL colour amplitude adjustment procedure.
• No function. Motorboating from PSU. TV starts up randomly. Intermittent fault.
• Initial volume level is higher than maximum Hotel mode setting.
• The switched-mode power supply cannot be loaded.
• The following production changes were introduced to prevent the set coming on in the store lock mode when switched on from standby. (part of circuit diagram displayed)
• Intermittent destruction of line o/p transistor. (extract of circuit diagram attached)
• No function at switch on from standby. Switches to LOCK (hotel) mode. (with circuit diagram extract)
• Noise in sound. Mute does not function.
• No switch on. Low noise on sound. (picture attached)
• White screen with flyback lines. Excessive brightness which increases until PSU switches to protection mode. (extract of circuit diagram attached)
• Picture is poor with rippling on verticals. (part of circuit diagram displayed)
• Appliance is dead with standby LED flashing after a few seconds. (extract of circuit diagram attached) (20GR125002B PHILIPS repair tip)
• Sound varies with picture content.
• Description of SMPS. (+ extract of circuit diagram)
• Line output transistor TR7528 fails at switch on.
• Enable Hotel mode.
• Poor reproduction of copy protected tapes. (with circuit diagram extract)
• Unable to retune set or set analogue levels. Store-lock option may be on "Hotel mode".
• Colours flicker and disappears.
• Poor sound, cannot be adjusted louder. When adjusting, sound cuts out. (+ extract of circuit diagram)
• Difficult to tune programmes, stations shifted on tuning bar.
• Green screen with flyback lines. Green oscillations. Noise as if HV leaky on picture tube base. (+ extract of circuit diagram)
• Dead. Low hum.
• No colour in OSD.
• Low 5V to micro chip. (part of circuit diagram displayed) (20GR125002B tip from PHILIPS)
• Loud chriping after switch on. It becomes lower after a short time.
• Programme tuning difficulty, stations shifted on tuning bar. (extract of circuit diagram attached) (20GR125002B tip from PHILIPS)
• Unregulated power supply. Pulsating picture and surging sound. (+ extract of circuit diagram)
• Dead. Only hum from speakers. (extract of circuit diagram attached)
• Programs and PP-settings cannot be changed.
• Dark picture.
• Colours flickers and disappears.
• Defective IC7103 SV-production. (with circuit diagram extract)
• PSU peeps +95 is ca 0,8v
• Distorted audio.
• Picture passes out in the centre.
• Difficultly in tuning to correct position.
• Picture appears slowly. (20GR125002B tips)
• No sound. No picture. Faint motorboating noise.
• No picture, sound ok but on turning up A1 control, frame collapse. (+ extract of circuit diagram)
• White balance adjustment. (PHILIPS - 20GR125002B information)
• R-Y and B-Y discriminator adjustment procedure. (with circuit diagram extract)
• Volume can't be tuned down. No tuning with RC. (part of circuit diagram displayed)
• LED switches on then off immediately.
• Reduced vertical size. at top.
• When switching on, only a 10cm stripe on top of screen, the rest of screen is black with flyback lines. After a while, stripe becomes wider. (extract of circuit diagram attached)
• 95V available. 9V is only 5.2V. Slight buzzing from loudspeakers.
• Interference in audio. Interference in picture. (extract of circuit diagram attached)
• No function, starts up from standby, then goes out.
• Switches off by itself. after a while. (extract of circuit diagram attached)
• No start-up. when cold. (part of circuit diagram displayed)
• Line tearing and rope effect.
• Tuning drifts. (with circuit diagram extract)
• Only half a picture. (picture attached)
• Green picture after few hours, intermittently fault disappears for short while when switching from a station to another. Strange characters in OSD.
• Bright picture. Flyback lines.
• Quick hiccup. (extract of circuit diagram attached) (PHILIPS - 20GR125002B information)
• Sound varies with picture content.
• Dead. (+ extract of circuit diagram) (20GR125002B PHILIPS repair tip)
• After switching on the CTV "EXT...1.2.3..." appears on the screen.
• Right side of picture discoloured.
• No picture. No sound. Purring sound in loudspeaker. (extract of circuit diagram attached)
• How to switch OFF Hotel-Mode.
• Colour amplitude and phase adjustment procedure.
• No audio.
• Replacing the EAROM. (picture attached)
• No picture. TXT OK . (+ extract of circuit diagram)
• No tuning bar when install button pressed and set not in hotel mode. (picture attached)
• Very slight vertical foldover with interferences similar to EHT arcing, especially on very white scenes.
• Bright flash on screen and no picture or sound after a few minutes. (picture attached)
• Unstable tuning.
• No start-up. (part of circuit diagram displayed)
• Reluctant to start from cold (extract of circuit diagram attached)
• How to switch off Hotel-Mode.
• Delay RF AGC adjustment procedure.
• Switches to standby. (+ extract of circuit diagram)
• Change of C2523.
• Height excessive. Defective linearity. Field blanking. (picture attached)
• Low frequency noise on sound.
• No functions. Hum in loudspeaker. No LED lit. (20GR125002B tip from PHILIPS)
• Search jumps on UHF.
• No or intermittent start-up. (part of circuit diagram displayed) (20GR125002B tips)
• Field collapse normally with blank picture. (with circuit diagram extract) (service info for PHILIPS -20GR125002B)
• Stuck in standby. (picture attached)
• Line transistor 7528 blows within 1 sec. (part of circuit diagram displayed)
• Excessive green.
• No audio.
• No picture and sound. Low hum intermittently, no function. (PHILIPS - 20GR125002B information)
• The remote control only controls the volume and sound-stop. No function with On-Off and channel change-over, although the display for the operation flickers.
• No sound. Picture OK. After a short time TV stops. High frequency noise from PSU. (part of circuit diagram displayed)
• Vertical amplitude cannot be fully adjusted, TXT lines can be seen. (+ extract of circuit diagram)
• Picture only in two bars in upper screen section, the rest is dark. (extract of circuit diagram attached)
• No tuning, no remote volume control. (+ extract of circuit diagram) (PHILIPS - 20GR125002B information)
• No sound or picture. Low hum from speaker. (extract of circuit diagram attached)
• Doesn't tune stations correctly. When cold, crossed lines on low UHF channels. (extract of circuit diagram attached)
• No start-up. Standby LED flashes .
• Hotel mode.
• Service manual correction. (with circuit diagram extract)
• Comes on for a short time.
• Change of C2523.
• Poor synchronisation. when cold. (picture attached)
• No functions. Slow start-up. (picture attached)
• Green picture. (part of circuit diagram displayed)
• Picture separating line appears. Whistling. (20GR125002B PHILIPS repair tip)
• Wavy picture. on the right.
• No voltage from PSU. (picture attached)
• Skips channels during tuning. only on certain channels.
• Crackling and popping in sound after a short time.
• Intermittently dead. after start-up.
• No function. When switching on with RC, standby LED lights up. (extract of circuit diagram attached)
• Picture shifts. (extract of circuit diagram attached)
• Intermittently narrow picture, but corrects itself shortly after.
• Slow start up of power supply. (with circuit diagram extract) (PHILIPS - 20GR125002B information)
• Standby just pulsing.
• PSU switches off with load at U95V. (with circuit diagram extract)
• Appliance will not switch on at times, but hums in the power supply section.
• Sound increases intermittently or "pops", especially during bright scenes. (extract of circuit diagram attached)
• Line down middle of screen. (part of circuit diagram displayed)
• Dead. Low level buzz from loudspeaker. (with circuit diagram extract)
• Dim picture with Hanover bars visible. (extract of circuit diagram attached)
• Skips channels during tuning. (part of circuit diagram displayed)
• Stuck in hotel mode.
• Intermittent channel drift in UHF. Channel search OK. VHF OK. (20GR125002B tips)
• Appliance can not be programmed. Search does not function. Only limited volume control.
• Dead. Strange noises from PSU/ line output transformer. (extract of circuit diagram attached)
• The fuse and the bridge diodes in the power supply blow.
• LED flashes once, then gurgles. (with circuit diagram extract)
• Two lines going around. (part of circuit diagram displayed)
• +B very high. (with circuit diagram extract)
• Vertical size varies. intermittently. (service info for PHILIPS -20GR125002B)
• Buzzing from PSU. when cold. (extract of circuit diagram attached)
• Change of C2523.
• Stops working every 2 or 3 hrs. Only starts again after switching off and on again.
• Enter service mode. (20GR125002B tip from PHILIPS)
• Power supply fault finding. (part of circuit diagram displayed)
• Memory content dropout at positions 4 and 5.
• Sound varies with picture content.
• Sound varies with picture content.
• Blue picture. Coloured lines.
• Set comes on in store lock mode. (extract of circuit diagram attached)
• Does not start up. Light buzz from loudspeaker. Standby LED produces one brief blink. (service info for PHILIPS -20GR125002B)
• How to reset microprocessor.
• Replacement of TDA7052 with a TDA7052A.
• No tuning. only on certain channels.
• Dead. At switch on the stand by LED flashes.
• Stops at start up. (extract of circuit diagram attached)
• Green picture with retrace lines. After a few restarts picture OK.
• LED does not flash. Slight buzz in appliance. (with circuit diagram extract)
• No start-up. Buzzing from speakers and working noise of PSU.
• Horizontal hold adjustment procedure.
• Chopper inoperative. (extract of circuit diagram attached) (PHILIPS - 20GR125002B information)
• Excessive horizontal size.
• Line output transistor becomes warm and in the course of time it becomes defective. (with circuit diagram extract)
• No SOP supply. (+ extract of circuit diagram)
• Slight foldover at upper part of picture if appliance is switched on when cold. Fault disappears after few minutes. (with circuit diagram extract)
• Horizontal white line.
• Secondary main power supply OK except +9V at 5.8V
• Unstable tuning.
• Tuning drift, when it is hot the tuning is lost on channel change.
• Picture centering has shifted horizontally. No OSD.
• Lines on picture after approx one hour. It consists of a band of bright white lines about two inches wide. (part of circuit diagram displayed)
• No function. Standby LED flashes briefly. (picture attached)
• Green picture.
• Does not stop on stations.
• White unmodulated raster. Picture missing. (with circuit diagram extract) (service info for PHILIPS -20GR125002B)
• +9V supply modification. (part of circuit diagram displayed)
• No audio.
• Initial volume level is higher than maximum Hotel mode setting.
• Dead. Low frequency noise on sound.
• Green screen and at other times no tuning. (+ extract of circuit diagram)
• Modification at line transformer position 5530. (with circuit diagram extract)
• Unstable tuning.
• Sound returns gradually after channel change. (+ extract of circuit diagram)
• Memory cannot be opened via "rhombus". Stored channels cannot be changed.
• Store lock on the appliance.
• Blown chopper. (picture attached)
• Intermittent colour and intermittent dark vertical bar on picture.
• Line output transistor running hot. (picture attached)
• Red picture. Flyback lines.
• Dark picture. Audio OK .
• Line output stage TS7528 is defective. (picture attached)
• Buzz in audio (intermittently). (with circuit diagram extract)
• Picture is mostly green with flyback lines after 10 secs from switch on.
• Dead. Power LED is OFF (ON in standby). Hissing from PSU.
• Does not start up at once from cold.
• Intermittently dead. (picture attached)
• No line start up; +95 available; +9V is about 4.5V. (with circuit diagram extract)
• Search jumps on UHF. (20GR125002B tips)
• No function. Standby-LED lights up. Appliance switches on but no picture or sound.
• Intermittent colour. (20GR125002B tip from PHILIPS)
• Low audio. (picture attached)
• Squealing from PSU.
• No HV.
• Dead. Only standby-LED works. Responds to TURN ON command, but no image and no sound.
• Initial volume level is higher than maximum hotel mode setting.
• After operating for one hour it is no longer possible to switch over programmes not even from the front panel. Appliance must be switched on and off then it is possible to change channels.
• How to de-activate Hotel-Mode:
• Memory loss. (picture attached)
• Colour sync adjustment procedure.
• Dead due to action of over voltage protection circuit. (PHILIPS - 20GR125002B information)
• Picture shifted horizontally. (+ extract of circuit diagram)
• Green picture.
• Bright flash on screen. No picture or sound. (with circuit diagram extract)
• No tuning. No channel lock. (part of circuit diagram displayed)
• No voltage from PSU, computer does not work. (extract of circuit diagram attached)
• Set goes accidentally into hotel mode.
• Production change to line drive. (part of circuit diagram displayed)
• Blank raster. Flyback lines. (with circuit diagram extract) (service info for PHILIPS -20GR125002B)
• Standby LED lights up and switches off at power on. Appliance will not start up.
• To remove store/lock.
• Loosing colour during play-back of a video tape. (extract of circuit diagram attached)
• The TV does not stop during the tuning phase. (20GR125002B tip from PHILIPS)
• No connection for headphone.
• Tuning drifts. only on certain channels (after a while).