20GR105567R / PHILIPS [TV]

• Only half a picture. (picture attached)
• Horizontal oscillator adjustment procedure.
• Frame has shifted sideways. Appliance whistles and does not oscillate correctly. (with circuit diagram extract)
• How to de-activate Hotel-Mode.
• Picture shifted horizontally. (picture attached)
• Difficult to tune programmes, stations shifted on tuning bar.
• Sound varies with picture content.
• Noise in audio.
• Secondary main power supply OK except +9V at 5.8V
• Line output transistor becomes warm and in the course of time it becomes defective. (with circuit diagram extract)
• Initial volume level is higher than maximum Hotel mode setting.
• No picture, sound ok but on turning up A1 control, frame collapse. (with circuit diagram extract) (service info for PHILIPS -20GR105567R)
• Field foldover at switch on from cold. Effect disappears when appliance warms up. (extract of circuit diagram attached)
• 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.
• Poor sync. AGC fault.
• Programs and PP-settings cannot be changed.
• No colour.
• No start-up. (picture attached)
• Occasionally appliance does not switch on from standby. No further functions are possible.
• Reduced vertical size. at top.
• Modification at line transformer position 5530. (picture attached) (20GR105567R tips)
• Dead due to action of over voltage protection circuit.
• Poor sound, cannot be adjusted louder. When adjusting, sound cuts out. (extract of circuit diagram attached)
• Unstable tuning.
• Vertical collapse. (+ extract of circuit diagram)
• Blank raster. OSD OK .
• Initial volume level is higher than maximum Hotel mode setting.
• How to switch off Hotel-Mode.
• Dead. (extract of circuit diagram attached)
• Green raster. Faint picture. Flyback lines.
• Dead. At switch on the stand by LED flashes.
• To improve performance with prerecorded cassettes. (part of circuit diagram displayed)
• Modification introduced to +9V supply.
• Unstable tuning.
• Excessive brightness.
• Low frequency noise on sound.
• No audio.
• Spurious nonsense OSG. Goes to standby after 0.5-2hrs. Loss of tuning.
• Line output stage does not function. (20GR105567R PHILIPS repair tip)
• No tuning. only on certain channels.
• Unable to retune set or set analogue levels. Store-lock option may be on "Hotel mode".
• Green picture.
• No colour in OSD.
• During picture changes sometimes a volume increase (plop) is heard. (part of circuit diagram displayed)
• Picture displays lines and strange foldover effect at centre.
• Field collapse normally with blank picture. (with circuit diagram extract)
• Red picture. Flyback lines. (20GR105567R PHILIPS repair tip)
• No start-up. Standby LED flashes .
• Noise in sound. Mute does not function.
• No functions. when cold.
• No power with abnormal sound. (picture attached)
• No functions. Hum in loudspeaker. No LED lit.
• U743 tuner replacement. (part of circuit diagram displayed)
• Initial volume level is higher than maximum hotel mode setting.
• Dark picture. Audio OK .
• Power supply fault finding. (picture attached)
• Blown chopper. (+ extract of circuit diagram)
• Picture shifted to the right. (with circuit diagram extract)
• 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.
• Display goes to F1 a few seconds after switching the set on.
• No HV.
• Using a lamp as a load.
• Memory cannot be opened via "rhombus". Stored channels cannot be changed.
• Poor reproduction of copy protected tapes. (extract of circuit diagram attached)
• No picture. No sound. Switching on and off from Standby OK.
• Tuning drifts. only on certain channels (after a while). (service info for PHILIPS -20GR105567R)
• No tuning.
• Does not switch on. LED is lit in standby. If appliance is switched on with RC, LED switches off.
• Line output stage TS7528 is defective. (part of circuit diagram displayed)
• Sound varies with picture content.
• Correction to service manual LOT winding.
• Description of SMPS. (picture attached)
• No start-up. intermittently.
• No function. When switching on with RC, standby LED lights up. (+ extract of circuit diagram)
• Stations won't change. Picture and sound OK. Other functions OK.
• Replacement of TDA7052 with a TDA7052A.
• Humming, motor noise and other unusual noises. Normal picture.
• Switches off by itself. after a while. (+ extract of circuit diagram)
• Bell filter adjustment procedure.
• No function at switch on from standby. Switches to LOCK (hotel) mode. (+ extract of circuit diagram)
• The TV does not stop during the tuning phase.
• Buzzing sound then switches off.
• Dead. Low level buzz from loudspeaker. (extract of circuit diagram attached)
• Tuning drifts. only on certain channels.
• Adjustment of +95V. (picture attached)
• No tuning. (extract of circuit diagram attached)
• Volume change with great fluctuations in brightness. (+ extract of circuit diagram) (20GR105567R tips)
• How to reset microprocessor.
• Green screen with flyback line. No picture. OSD OK.
• Vertical line. on the right half screen. (with circuit diagram extract)
• No sound. Picture OK. After a short time TV stops. High frequency noise from PSU. (extract of circuit diagram attached)
• No operation.
• Change of C2523.
• Set goes accidentally into hotel mode.
• Appliance does not function with standby light flashing.
• No picture. No sound. Purring sound in loudspeaker. (picture attached)
• No colour.
• Volume goes to max. No volume control.
• Slight foldover at upper part of picture if appliance is switched on when cold. Fault disappears after few minutes. (picture attached) (20GR105567R PHILIPS repair tip)
• Low audio. (with circuit diagram extract)
• No HT from chopper circuit. (picture attached)
• Poor synchronisation. (+ extract of circuit diagram)
• Line output stage does not start up. (+ extract of circuit diagram)
• 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)
• Protection device (thyristor THY6641) is triggered at switch on. (extract of circuit diagram attached)
• Memory loss. (with circuit diagram extract)
• Programming unoperational. Limited sound adjustment possible.
• No start-up. when cold. (with circuit diagram extract)
• Squealing from PSU.
• No audio. (20GR105567R tip from PHILIPS)
• Local controls inoperative.
• No functions. after start-up (intermittently).
• No tuning, no remote volume control. (extract of circuit diagram attached)
• Comes on for a short time.
• No regulation. (picture attached)
• SOPS defective. (with circuit diagram extract)
• The following production changes were introduced to prevent the set coming on in the store lock mode when switched on from standby. (picture attached) (20GR105567R PHILIPS repair tip)
• Streaks in picture. Picture pulls and rolls intermittently.
• Buzz in audio. No picture.
• No switch on after activating mains switch. Whistling noise. (extract of circuit diagram attached)
• Dead. Low hum.
• LED switches on then off immediately.
• Appliance hums slightly (no speaker) horizontal end stage and power supply transistor are ok. Unfortunately no service instructions available.
• Blue picture. Coloured lines.
• Drive for high voltage missing. (extract of circuit diagram attached)
• No +9V, line output stage is OK. (with circuit diagram extract)
• No function. Standby LED flashes briefly. (with circuit diagram extract)
• Standby LED lights up and switches off at power on. Appliance will not start up.
• Cannot change tuning or stored settings. (+ extract of circuit diagram)
• Whistle. (20GR105567R tips)
• Reluctant to start up from cold.
• Line out of phase. Black band in centre of screen. No colour.
• Line tearing, especially with bright scences. (+ extract of circuit diagram)
• Tuning drifts. (extract of circuit diagram attached)
• Lines across top of picture about 8" in first 100 lines. (picture attached)
• Colours flickers and disappears. (20GR105567R PHILIPS repair tip)
• Line output transistor TR7528 fails at switch on.
• The switched-mode power supply cannot be loaded.
• Excessive vertical size.
• Green picture.
• No vertical deflection. (+ extract of circuit diagram)
• 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)
• Processor numbers (changed).
• No sound or picture. Low hum from speaker. (with circuit diagram extract)
• Excessive green.
• Picture shifted to the left. intermittently. Line tearing. intermittently. (extract of circuit diagram attached)
• 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)
• Search jumps on UHF.
• No tuning. Impossible to change analog control adjustments (brightness, sound, etc.). (extract of circuit diagram attached)
• Does not regulate +95V.
• Rolling or jittering picture. (with circuit diagram extract)
• Change of C2523.
• Intermittent green picture, channels cannot be programmed. (picture attached)
• Line tearing. on lower half screen. (picture attached)
• Change of C2523.
• Trips. (picture attached)
• Picture separating line appears. Whistling.
• Picture appears slowly.
• Comes on in standby. When program button pressed standby lamp blinks then goes off.
• Blank or green raster. Flyback lines. Faint picture or normal picture. (picture attached)
• Crackling and popping in sound after a short time.
• No freeze frame or intermittent freeze frame; no sound. (extract of circuit diagram attached)
• Dim picture with Hanover bars.
• Replacement of surface mounted diode 6637. (+ extract of circuit diagram)
• Hazy flickering picture at top. (with circuit diagram extract) (20GR105567R PHILIPS repair tip)
• The tone (sound) tunes well, but the volume cannot be raised.
• Limited volume. No channel search. (20GR105567R tips)
• High voltage transistor defective after a while.
• Doesn't store stations correctly.
• Sound goes to max. intermittently and HT varies. (part of circuit diagram displayed)
• 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.
• No switch on. Weak whistling noise from PSU. LED is OFF.
• Intermittent colour.
• Cannot be programmed and search does not function. Only limited volume adjustable.
• No functions. Sound buzzes in loudspeaker. (+ extract of circuit diagram)
• Becomes defective immediately after switch on.
• Will not tune, drifts, colour disappears or interference on a certain channel. (e.g. channel 5 and 59)
• Set dead with just 5V on the 95V line. Standby LED is on but set won't start. (+ extract of circuit diagram)
• Excessive horizontal size.
• Dim picture with Hanover bars visible. (extract of circuit diagram attached)
• Error messages indicated by front display flashing. (picture attached)
• Production change to line drive. (+ extract of circuit diagram) (20GR105567R tip from PHILIPS)
• Sound returns gradually after channel change. (part of circuit diagram displayed)
• Random breakdown of line output transistor. (with circuit diagram extract)
• No horizontal synchronisation. (part of circuit diagram displayed)
• Sound varies with picture content.
• No picture. OSD OK .
• 10V on 95V line. (with circuit diagram extract)
• Bright flash on screen. No picture or sound. (+ extract of circuit diagram)
• No picture. (part of circuit diagram displayed)
• Unstable tuning.
• Picture passes out in the centre.
• Sound motorboating when cold. (part of circuit diagram displayed)
• No picture. TXT OK . (picture attached)
• How to de-activate volume limiter.
• Won't tune a new channel. Won't activate store function. Picture OK. Sound OK.
• Store lock on the appliance.
• Hums softly. (with circuit diagram extract)
• New IR receiver.
• No start-up. intermittently (when cold). (with circuit diagram extract)
• No standby, humming and standby LED blinks.
• Hotel Mode activates by itself. (part of circuit diagram displayed)
• Intermittent audio and picture. (part of circuit diagram displayed)
• Excessive HV. after a while.
• Intermittently dead. after start-up.
• R-Y and B-Y discriminator adjustment procedure. (+ extract of circuit diagram)
• Doesn't tune stations correctly. When cold, crossed lines on low UHF channels. (with circuit diagram extract)
• No tuning - no channels.
• No transmitters to adjust and the sound is not controllable.
• Dark picture.
• Standby just pulsing.
• PSU check.
• Intermittently dead. (+ extract of circuit diagram)
• Dead. Only hum from speakers. (+ extract of circuit diagram)
• PSU peeps +95 is ca 0,8v
• Reluctant to start from cold (extract of circuit diagram attached)
• Intermittent colour.
• Stored channels drift off tune briefly after switch on. Crackle in sound.
• Right side of picture discoloured.
• Programme tuning difficulty. Stations has shifted on tuning bar.
• No picture and sound. Low hum intermittently, no function.
• How to de-activate Hotel mode.
• White screen with flyback lines. Excessive brightness which increases until PSU switches to protection mode. (part of circuit diagram displayed)
• PSU does not start up, if appliance was switched off for a day. Appliance functions after short switch on/off. (with circuit diagram extract)
• Vertical vibration in cold condition of set.
• Skips channels during tuning. (extract of circuit diagram attached)
• Green picture after few hours, intermittently fault disappears for short while when switching from a station to another. Strange characters in OSD.
• Right hand side of screen has a line.
• Line output transistor fails repeatedly. (picture attached)
• Distorted audio. (service info for PHILIPS -20GR105567R)
• No functions. Standby LED flashes. Relay switches to ON.
• No frame or short frame. (picture attached)
• Sound varies with picture content.
• Colour sync adjustment procedure.
• Picture is faint with hanover bars. (part of circuit diagram displayed)
• Set does not retune or program etc
• Set comes on in store lock mode. (extract of circuit diagram attached)
• Dead. Strange noises from PSU/ line output transformer. (part of circuit diagram displayed)
• Only some programs with snowy picture can be tuned and on band 1 missing some programs. (with circuit diagram extract)
• Appliance will not switch on at times, but hums in the power supply section.
• Search jumps on UHF.
• Appliance can not be programmed. Search does not function. Only limited volume control.
• To remove store/lock.
• Dead. Only standby-LED works. Responds to TURN ON command, but no image and no sound.
• Picture shifts. (extract of circuit diagram attached)
• Buzzing.
• After switching on the CTV "EXT...1.2.3..." appears on the screen.
• No start up, just a buzzing noise in speakers. (+ extract of circuit diagram)
• No voltage from PSU. (picture attached)
• Dead. Power LED is OFF (ON in standby). Hissing from PSU. (20GR105567R tip from PHILIPS)
• +B very high. (with circuit diagram extract) (20GR105567R tip from PHILIPS)
• No function, starts up from standby, then goes out.
• No line start up; +95 available; +9V is about 4.5V. (extract of circuit diagram attached)
• No function. Motorboating from PSU. TV starts up randomly. Intermittent fault.
• Green screen with flyback lines. Green oscillations. Noise as if HV leaky on picture tube base. (picture attached)
• Identification coil adjustment.
• Tuning procedure.
• Low 5V to micro chip. (part of circuit diagram displayed)
• Volume can't be tuned down. No tuning with RC. (+ extract of circuit diagram)
• Control micro processors.
• New infra red receiver.
• Colours flickers and disappears.
• Slow start up of power supply. (picture attached)
• Enable Hotel mode. Disable hotel mode.
• Height excessive. Defective linearity. Field blanking. (part of circuit diagram displayed) (PHILIPS - 20GR105567R information)
• Vertical amplitude cannot be fully adjusted, TXT lines can be seen. (with circuit diagram extract)
• Vertical roll. (picture attached)
• No colour and vertical black bar across screen.
• Intermittently no picture and sound at switch on. Buzz from speaker. (with circuit diagram extract)
• Print with linearity coil pos. 5800.
• Picture centering has shifted horizontally. No OSD.
• Hotel mode.
• To release hotel mode (child lock).
• To put into hotel mode. (service info for PHILIPS -20GR105567R)
• Unable to tune or set volume in Prefix mode.
• Line down middle of screen. (with circuit diagram extract) (20GR105567R tips)
• Intermittently narrow picture, but corrects itself shortly after.
• Bright flash on screen and no picture or sound after a few minutes. (+ extract of circuit diagram)
• Horizontal hold adjustment procedure.
• No line output.
• How to enter/exit HOTEL mode.
• No picture. Audio OK . (20GR105567R tips)
• Enter service mode.
• Intermittent colour.
• Search jumps on UHF.
• Stuck in hotel mode.
• No picture or sound but RCU works correctly. LED flashes when the handset is tried. (picture attached)
• Initial volume level is higher than maximum Hotel mode setting. (service info for PHILIPS -20GR105567R)
• Reduced horizontal size. (part of circuit diagram displayed)
• Buzzing from PSU. when cold. (+ extract of circuit diagram)
• Does not shut down (when cold).
• Control panel cover.
• Picture only in two bars in upper screen section, the rest is dark. (part of circuit diagram displayed) (PHILIPS - 20GR105567R information)
• Sometimes when turned on, green screen only with flyback lines, at other times no tuning and channel will not change. (+ extract of circuit diagram)
• Stored channels are partially lost.
• Poor synchronisation. when cold. (+ extract of circuit diagram)
• Microcomputers and screening plate.
• After working normally for a while the TV blocks in any position. The functions do not work.
• No power supply start up in loaded condition (eg. with lamp).
• Green picture. after warm-up. Lines in picture. after warm-up. Does not change channels.
• Power supply does not oscillate. (extract of circuit diagram attached)
• Quick hiccup. (extract of circuit diagram attached)
• Failures in the power supply. (with circuit diagram extract)
• Error codes.
• Picture is mostly green with flyback lines after 10 secs from switch on.
• Does not start. Slight buzzing in loudspeaker.
• Two lines going around. (extract of circuit diagram attached)
• PSU switches off with load at U95V. (extract of circuit diagram attached)
• Microprocessor screening plate. (extract of circuit diagram attached) (20GR105567R tip from PHILIPS)
• Unstable tuning.
• No picture (when cold).
• Colour amplitude and phase adjustment procedure. (service info for PHILIPS -20GR105567R)
• V-centre adjustment procedure.
• Switches to standby. (with circuit diagram extract)
• Dead with whistling noise coming from power supply. (with circuit diagram extract)
• No start-up. Buzzing from speakers and working noise of PSU.
• How to switch off Hotel-Mode:
• Delay RF AGC adjustment procedure.
• Whistling. (PHILIPS - 20GR105567R information)
• No sound. No picture. Faint motorboating noise.
• Loosing colour during play-back of a video tape. (extract of circuit diagram attached)
• White unmodulated raster. Picture missing. (with circuit diagram extract)
• +9V supply modification. (picture attached)
• No colour. (part of circuit diagram displayed)
• Low audio. (20GR105567R PHILIPS repair tip)
• Dead, very slight whistle from PSU.
• Change of C2523.
• Does not start up at once from cold.
• The TV cannot hold the picture.
• Colours flicker and disappears.
• Smeary, washed out picture with bent verticals. (+ extract of circuit diagram)
• The fuse and the bridge diodes in the power supply blow. (20GR105567R tips)
• How to switch OFF Hotel-Mode.
• Picture fails for a short time. (with circuit diagram extract)
• Wavy picture. on the right.
• Programme channel search cannot be called up.
• Colour disappears with VCR-scan (picture search). (+ extract of circuit diagram) (service info for PHILIPS -20GR105567R)
• Line output stage only starts up for a short time. (extract of circuit diagram attached)
• Connection of a loop system to the TV.
• Bright picture. Flyback lines.
• Green picture. (part of circuit diagram displayed)
• Tuning drift, when it is hot the tuning is lost on channel change.
• No functions. Slow start-up. (picture attached)
• Stops at start up. (+ extract of circuit diagram)
• No functions, hum in loudspeakers. (extract of circuit diagram attached)
• Slow hiccup (with circuit diagram extract)
• Vertical size varies. intermittently.
• No audio.
• Does not stop on stations.
• 6613 type change. (part of circuit diagram displayed)
• Interference in audio. Interference in picture. (extract of circuit diagram attached)
• Line tearing and rope effect.
• Loud chriping after switch on. It becomes lower after a short time.
• Line chirps intermittently. Appliance does not start. Only hum from loudspeakers.
• No or intermittent start-up. (with circuit diagram extract)
• No sound or raster. The 95V HT supply is present at the line output stage but there is no line drive. (extract of circuit diagram attached)
• No voltage from PSU, computer does not work. (with circuit diagram extract) (20GR105567R tip from PHILIPS)
• No audio. (20GR105567R PHILIPS repair tip)
• The removal of leaded diodes. (part of circuit diagram displayed)
• LED does not flash. Slight buzz in appliance. (+ extract of circuit diagram)
• Intermittent channel drift in UHF. Channel search OK. VHF OK.
• CRT types.
• Defective IC7103 SV-production. (part of circuit diagram displayed)
• No connection for headphone.
• SIF DET adjustment procedure.
• Skips channels during tuning. only on certain channels.
• Change of C2523.
• Chopper inoperative. (picture attached)
• Volume varies. depending on picture content. (+ extract of circuit diagram)
• Stuck in standby. (extract of circuit diagram attached)
• Difficultly in tuning to correct position.
• White balance adjustment.
• How to de-activate Hotel-Mode:
• Horizontal white line.
• Automatic fine tuning (AFT) field alignment procedure.
• Does not start up. Light buzz from loudspeaker. Standby LED produces one brief blink.
• Dead set. Tries to start.
• No function. Standby-LED lights up. Appliance switches on but no picture or sound.
• Does not switch on, standby LED OK.
• Vertical oscillator adjustment procedure.
• Fizzling sound from speakers at start-up and intermittently picture jagged.
• Focus adjustment.
• No audio. (20GR105567R tip from PHILIPS)
• Picture is poor with rippling on verticals. (with circuit diagram extract)
• LED flashes once, then gurgles. (with circuit diagram extract)
• Blank raster. No audio. after a while. (with circuit diagram extract)
• Difficult startup. Rattling sound from line output trafo. (20GR105567R tip from PHILIPS)
• Tuning menu can not be called. All other functions OK.
• No tuning bar when install button pressed and set not in hotel mode. (with circuit diagram extract)
• Unregulated power supply. Pulsating picture and surging sound. (with circuit diagram extract)
• No picture. No audio. (with circuit diagram extract)
• Tripping. (with circuit diagram extract)
• Trips. at start-up (intermittently). (extract of circuit diagram attached)
• "Store" key does not work. (part of circuit diagram displayed)
• No colour.
• No SOP supply. (part of circuit diagram displayed)
• No line output stage. (picture attached)
• No audio.
• No audio.
• Blank raster. Flyback lines. (picture attached)
• No channel search. No OSD. (part of circuit diagram displayed)
• Buzz in audio (intermittently). (picture attached)
• After replacement of the line output transistor BUT12, picture with trapezoid effect, BUT12 overheats and goes defective again. (+ extract of circuit diagram)
• Intermittent colour and intermittent dark vertical bar on picture.
• No tuning or on screen tuning display.
• Line transistor 7528 blows within 1 sec. (+ extract of circuit diagram)
• No tuning possible, F2 appears on bottom of picture and S1 on top. (20GR105567R PHILIPS repair tip)
• Memory content dropout at positions 4 and 5.
• Sound increases intermittently or "pops", especially during bright scenes. (+ extract of circuit diagram)
• Enable Hotel mode.
• Very slight vertical foldover with interferences similar to EHT arcing, especially on very white scenes.
• Whistling from PSU. (part of circuit diagram displayed)
• Green screen and at other times no tuning. (part of circuit diagram displayed)
• No OSD. Picture OK . (20GR105567R PHILIPS repair tip)
• Line output transistor replacement.
• Defective purity.
• Turns on automatically. No RC or front panel controls.
• PAL colour amplitude adjustment procedure.
• Service manual correction. (extract of circuit diagram attached) (PHILIPS - 20GR105567R information)
• Intermittent destruction of line o/p transistor. (part of circuit diagram displayed) (PHILIPS - 20GR105567R information)
• No start up. No standby. Attempts to start up, but fails.
• Line output transistor running hot. (extract of circuit diagram attached)
• Stops working every 2 or 3 hrs. Only starts again after switching off and on again.
• Replacing the EAROM. (part of circuit diagram displayed)
• No switch on. Low noise on sound. (+ extract of circuit diagram)
• Menu rolling. (picture attached)
• Searches for channels continuously. (with circuit diagram extract)
• 95V available. 9V is only 5.2V. Slight buzzing from loudspeakers.
• Strongly distorted sound by low volume.
• No tuning. No channel lock. (with circuit diagram extract)
• Set won't tune to high frequency channels and lower frequency channels appear to be higher. (picture attached)
• Appliance is dead with standby LED flashing after a few seconds. (picture attached)
• No start up from cold and humming.
• Slow start-up.
• Dead. Low frequency noise on sound.
• Initial volume level is higher than maximum Hotel mode setting.
• Green picture with retrace lines. After a few restarts picture OK.
• Programme tuning difficulty, stations shifted on tuning bar. (+ extract of circuit diagram)
• Colour flickers. No colour. after a while. (part of circuit diagram displayed)
• Settings do not stay in position. (PHILIPS - 20GR105567R information)