20GR105010B / PHILIPS [TV]

• No colour.
• Does not start up at once from cold.
• PSU check.
• Delay RF AGC adjustment procedure.
• Stops at start up. (picture attached)
• Sound motorboating when cold. (picture attached)
• Dark picture.
• 10V on 95V line. (+ extract of circuit diagram)
• Change of C2523.
• Difficultly in tuning to correct position. (20GR105010B tip from PHILIPS)
• No function. Standby LED flashes briefly. (+ extract of circuit diagram)
• Lines across top of picture about 8" in first 100 lines. (+ extract of circuit diagram) (20GR105010B PHILIPS repair tip)
• Poor sound, cannot be adjusted louder. When adjusting, sound cuts out. (part of circuit diagram displayed) (20GR105010B tip from PHILIPS)
• No horizontal synchronisation. (part of circuit diagram displayed)
• No start-up. Standby LED flashes .
• 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.
• Set does not retune or program etc
• No colour. (extract of circuit diagram attached)
• No sound or raster. The 95V HT supply is present at the line output stage but there is no line drive. (picture attached)
• Dead set. Tries to start.
• No function. Motorboating from PSU. TV starts up randomly. Intermittent fault.
• No start up, just a buzzing noise in speakers. (picture attached)
• 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. (part of circuit diagram displayed)
• Green picture with retrace lines. After a few restarts picture OK. (20GR105010B PHILIPS repair tip)
• Dead, very slight whistle from PSU.
• No colour.
• Tuning drifts. (part of circuit diagram displayed)
• Drive for high voltage missing. (extract of circuit diagram attached)
• Buzzing.
• Programme tuning difficulty, stations shifted on tuning bar. (with circuit diagram extract)
• Slow hiccup (picture attached)
• No transmitters to adjust and the sound is not controllable.
• Vertical amplitude cannot be fully adjusted, TXT lines can be seen. (part of circuit diagram displayed)
• Dark picture. Audio OK .
• Buzz in audio (intermittently). (picture attached)
• Hotel Mode activates by itself. (with circuit diagram extract)
• Volume change with great fluctuations in brightness. (picture attached)
• No tuning.
• Noise in sound. Mute does not function.
• Picture passes out in the centre.
• No sound. No picture. Faint motorboating noise.
• 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)
• How to de-activate Hotel mode.
• Initial volume level is higher than maximum Hotel mode setting.
• No +9V, line output stage is OK. (part of circuit diagram displayed)
• Does not regulate +95V. (20GR105010B tip from PHILIPS)
• Dead. Strange noises from PSU/ line output transformer. (picture attached)
• Change of C2523.
• Programs and PP-settings cannot be changed. (20GR105010B tips)
• Only some programs with snowy picture can be tuned and on band 1 missing some programs. (part of circuit diagram displayed)
• Picture is poor with rippling on verticals. (extract of circuit diagram attached)
• R-Y and B-Y discriminator adjustment procedure. (extract of circuit diagram attached)
• Field foldover at switch on from cold. Effect disappears when appliance warms up. (with circuit diagram extract)
• Green picture. after warm-up. Lines in picture. after warm-up. Does not change channels.
• No regulation. (part of circuit diagram displayed)
• Defective IC7103 SV-production. (+ extract of circuit diagram)
• No line start up; +95 available; +9V is about 4.5V. (extract of circuit diagram attached) (20GR105010B PHILIPS repair tip)
• No functions. Standby LED flashes. Relay switches to ON.
• Line output transistor fails repeatedly. (+ extract of circuit diagram)
• Unable to tune or set volume in Prefix mode.
• No picture. (with circuit diagram extract) (PHILIPS - 20GR105010B information)
• No sound. Picture OK. After a short time TV stops. High frequency noise from PSU. (part of circuit diagram displayed)
• Green picture. (with circuit diagram extract)
• Poor synchronisation. (+ extract of circuit diagram) (PHILIPS - 20GR105010B information)
• Colours flickers and disappears.
• Search jumps on UHF.
• Green screen with flyback lines. Green oscillations. Noise as if HV leaky on picture tube base. (picture attached)
• Search jumps on UHF.
• Change of C2523.
• PAL colour amplitude adjustment procedure.
• No function. Standby-LED lights up. Appliance switches on but no picture or sound.
• No audio. (20GR105010B PHILIPS repair tip)
• Defective purity.
• Hotel mode.
• How to switch off Hotel-Mode:
• Green picture.
• Intermittently dead. after start-up.
• Skips channels during tuning. (extract of circuit diagram attached)
• Failures in the power supply. (with circuit diagram extract)
• Difficult startup. Rattling sound from line output trafo.
• Sound varies with picture content.
• Print with linearity coil pos. 5800.
• Adjustment of +95V. (extract of circuit diagram attached)
• The TV does not stop during the tuning phase.
• How to switch OFF Hotel-Mode.
• Dim picture with Hanover bars visible. (extract of circuit diagram attached)
• Initial volume level is higher than maximum Hotel mode setting.
• CRT types. (20GR105010B tip from PHILIPS)
• Blown chopper. (extract of circuit diagram attached)
• No audio.
• Line output stage does not start up. (+ extract of circuit diagram)
• Settings do not stay in position.
• Right hand side of screen has a line.
• Dead. (extract of circuit diagram attached)
• Green screen with flyback line. No picture. OSD OK.
• Comes on for a short time.
• Switches to standby. (with circuit diagram extract)
• No line output stage. (extract of circuit diagram attached)
• Dead with whistling noise coming from power supply. (extract of circuit diagram attached)
• Dead. Power LED is OFF (ON in standby). Hissing from PSU.
• Identification coil adjustment.
• Connection of a loop system to the TV.
• Enter service mode.
• Volume goes to max. No volume control.
• Excessive brightness.
• LED does not flash. Slight buzz in appliance. (picture attached)
• Intermittent colour and intermittent dark vertical bar on picture.
• U743 tuner replacement. (+ extract of circuit diagram)
• Description of SMPS. (with circuit diagram extract)
• Becomes defective immediately after switch on.
• No picture and sound. Low hum intermittently, no function.
• Excessive horizontal size.
• Sound varies with picture content.
• Intermittent audio and picture. (with circuit diagram extract)
• Replacement of TDA7052 with a TDA7052A.
• Buzzing from PSU. when cold. (+ extract of circuit diagram)
• Occasionally appliance does not switch on from standby. No further functions are possible.
• No picture. Audio OK . (PHILIPS - 20GR105010B information)
• Green picture.
• Blank raster. No audio. after a while. (with circuit diagram extract)
• Production change to line drive. (extract of circuit diagram attached)
• New infra red receiver.
• Memory content dropout at positions 4 and 5.
• Line output transistor TR7528 fails at switch on.
• Local controls inoperative.
• V-centre adjustment procedure.
• Line tearing and rope effect.
• No start up. No standby. Attempts to start up, but fails.
• No picture. No audio. (extract of circuit diagram attached)
• No functions. Sound buzzes in loudspeaker. (with circuit diagram extract)
• Buzz in audio. No picture.
• Set goes accidentally into hotel mode. (20GR105010B tips)
• Horizontal oscillator adjustment procedure.
• Microprocessor screening plate. (picture attached)
• Programme tuning difficulty. Stations has shifted on tuning bar.
• Wavy picture. on the right.
• Set comes on in store lock mode. (+ extract of circuit diagram)
• Poor sync. AGC fault.
• New IR receiver.
• Initial volume level is higher than maximum Hotel mode setting.
• Colour sync adjustment procedure.
• Reduced vertical size. at top.
• Dead. Low hum.
• No tuning possible, F2 appears on bottom of picture and S1 on top.
• Horizontal white line.
• No functions. after start-up (intermittently).
• Blank raster. Flyback lines. (+ 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. (+ extract of circuit diagram)
• No voltage from PSU, computer does not work. (extract of circuit diagram attached)
• High voltage transistor defective after a while. (20GR105010B tip from PHILIPS)
• No tuning - no channels.
• Enable Hotel mode.
• Excessive vertical size. (20GR105010B PHILIPS repair tip)
• No picture. No sound. Purring sound in loudspeaker. (part of circuit diagram displayed)
• Line output stage TS7528 is defective. (+ extract of circuit diagram)
• The following production changes were introduced to prevent the set coming on in the store lock mode when switched on from standby. (picture attached)
• Stations won't change. Picture and sound OK. Other functions OK.
• Picture fails for a short time. (with circuit diagram extract)
• No picture or sound but RCU works correctly. LED flashes when the handset is tried. (+ extract of circuit diagram)
• Standby just pulsing.
• No SOP supply. (+ extract of circuit diagram) (service info for PHILIPS -20GR105010B)
• Colour amplitude and phase adjustment procedure.
• Does not shut down (when cold).
• Line output transistor replacement.
• Blue picture. Coloured lines.
• Intermittent destruction of line o/p transistor. (with circuit diagram extract)
• Unstable tuning.
• Switches off by itself. after a while. (+ extract of circuit diagram)
• Distorted audio.
• Rolling or jittering picture. (picture attached)
• No colour in OSD.
• Tuning menu can not be called. All other functions OK.
• After switching on the CTV "EXT...1.2.3..." appears on the screen.
• Vertical roll. (part of circuit diagram displayed)
• Dead. Only standby-LED works. Responds to TURN ON command, but no image and no sound.
• Bell filter adjustment procedure.
• Comes on in standby. When program button pressed standby lamp blinks then goes off.
• +B very high. (part of circuit diagram displayed)
• Error messages indicated by front display flashing. (part of circuit diagram displayed)
• Excessive green.
• 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. (PHILIPS - 20GR105010B information)
• The tone (sound) tunes well, but the volume cannot be raised.
• Loosing colour during play-back of a video tape. (with circuit diagram extract)
• Power supply fault finding. (+ extract of circuit diagram)
• Intermittent green picture, channels cannot be programmed. (+ extract of circuit diagram)
• SOPS defective. (extract of circuit diagram attached)
• Picture centering has shifted horizontally. No OSD.
• Squealing from PSU.
• Picture shifted horizontally. (part of circuit diagram displayed)
• Smeary, washed out picture with bent verticals. (with circuit diagram extract) (service info for PHILIPS -20GR105010B)
• Intermittent colour.
• No switch on after activating mains switch. Whistling noise. (picture attached)
• How to de-activate Hotel-Mode:
• No operation.
• Line out of phase. Black band in centre of screen. No colour.
• No start-up. Buzzing from speakers and working noise of PSU.
• No switch on. Low noise on sound. (part of circuit diagram displayed)
• Sound returns gradually after channel change. (+ extract of circuit diagram)
• Dead. Low level buzz from loudspeaker. (+ extract of circuit diagram)
• Picture is faint with hanover bars. (extract of circuit diagram attached)
• Doesn't tune stations correctly. When cold, crossed lines on low UHF channels. (+ extract of circuit diagram)
• Dim picture with Hanover bars.
• Searches for channels continuously. (+ extract of circuit diagram)
• Enable Hotel mode. Disable hotel mode.
• 95V available. 9V is only 5.2V. Slight buzzing from loudspeakers.
• Hums softly. (with circuit diagram extract)
• No picture. OSD OK .
• Reluctant to start from cold (with circuit diagram extract)
• No start-up. intermittently.
• Bright picture. Flyback lines.
• Sometimes when turned on, green screen only with flyback lines, at other times no tuning and channel will not change. (+ extract of circuit diagram)
• No tuning. Impossible to change analog control adjustments (brightness, sound, etc.). (picture attached)
• Does not switch on. LED is lit in standby. If appliance is switched on with RC, LED switches off.
• The fuse and the bridge diodes in the power supply blow.
• After working normally for a while the TV blocks in any position. The functions do not work.
• Unstable tuning.
• Picture appears slowly.
• White balance adjustment.
• Tuning drifts. only on certain channels. (service info for PHILIPS -20GR105010B)
• Doesn't store stations correctly.
• Processor numbers (changed).
• Vertical oscillator adjustment procedure.
• Replacing the EAROM. (part of circuit diagram displayed)
• Appliance is dead with standby LED flashing after a few seconds. (with circuit diagram extract)
• Height excessive. Defective linearity. Field blanking. (part of circuit diagram displayed)
• How to enter/exit HOTEL mode.
• The TV cannot hold the picture.
• Intermittently dead. (+ extract of circuit diagram)
• How to de-activate volume limiter.
• No start up from cold and humming.
• Buzzing sound then switches off.
• No tuning. No channel lock. (part of circuit diagram displayed)
• Intermittent colour.
• Tuning drift, when it is hot the tuning is lost on channel change.
• No start-up. when cold. (+ extract of circuit diagram)
• Dead. Only hum from speakers. (extract of circuit diagram attached) (service info for PHILIPS -20GR105010B)
• After replacement of the line output transistor BUT12, picture with trapezoid effect, BUT12 overheats and goes defective again. (extract of circuit diagram attached)
• Does not switch on, standby LED OK.
• No OSD. Picture OK . (PHILIPS - 20GR105010B information)
• Colours flicker and disappears.
• No start-up. intermittently (when cold). (extract of circuit diagram attached)
• Trips. (picture attached)
• Intermittent channel drift in UHF. Channel search OK. VHF OK.
• Red picture. Flyback lines.
• Low frequency noise on sound.
• Dead. At switch on the stand by LED flashes.
• Modification at line transformer position 5530. (with circuit diagram extract) (20GR105010B tip from PHILIPS)
• No colour and vertical black bar across screen.
• Tuning drifts. only on certain channels (after a while).
• Unstable tuning.
• Picture shifted to the right. (+ extract of circuit diagram)
• Hazy flickering picture at top. (+ extract of circuit diagram)
• Strongly distorted sound by low volume.
• Line output transistor becomes warm and in the course of time it becomes defective. (extract of circuit diagram attached)
• Interference in audio. Interference in picture. (extract of circuit diagram attached)
• Horizontal hold adjustment procedure.
• No switch on. Weak whistling noise from PSU. LED is OFF. (20GR105010B PHILIPS repair tip)
• No start-up. (extract of circuit diagram attached)
• No power supply start up in loaded condition (eg. with lamp).
• Line transistor 7528 blows within 1 sec. (+ extract of circuit diagram)
• Slight foldover at upper part of picture if appliance is switched on when cold. Fault disappears after few minutes. (+ extract of circuit diagram)
• Display goes to F1 a few seconds after switching the set on.
• Whistle.
• Whistling from PSU. (with circuit diagram extract)
• No picture, sound ok but on turning up A1 control, frame collapse. (picture attached) (PHILIPS - 20GR105010B information)
• No voltage from PSU. (+ extract of circuit diagram)
• Vertical vibration in cold condition of set.
• No frame or short frame. (+ extract of circuit diagram)
• Control panel cover.
• Low 5V to micro chip. (with circuit diagram extract)
• No functions. Hum in loudspeaker. No LED lit.
• Line output stage only starts up for a short time. (+ extract of circuit diagram)
• Does not stop on stations.
• Limited volume. No channel search. (20GR105010B tips)
• Stops working every 2 or 3 hrs. Only starts again after switching off and on again. (service info for PHILIPS -20GR105010B)
• Picture is mostly green with flyback lines after 10 secs from switch on.
• The removal of leaded diodes. (+ extract of circuit diagram)
• Memory cannot be opened via "rhombus". Stored channels cannot be changed.
• No HV.
• No audio.
• Set won't tune to high frequency channels and lower frequency channels appear to be higher. (extract of circuit diagram attached)
• Colours flickers and disappears.
• Cannot change tuning or stored settings. (with circuit diagram extract)
• Store lock on the appliance.
• Programming unoperational. Limited sound adjustment possible.
• Unregulated power supply. Pulsating picture and surging sound. (with circuit diagram extract)
• Tripping. (+ extract of circuit diagram)
• No audio.
• Poor reproduction of copy protected tapes. (picture attached) (service info for PHILIPS -20GR105010B)
• Stuck in hotel mode. (PHILIPS - 20GR105010B information)
• No function, starts up from standby, then goes out.
• Reluctant to start up from cold.
• Colour flickers. No colour. after a while. (picture attached)
• No tuning bar when install button pressed and set not in hotel mode. (picture attached)
• No or intermittent start-up. (part of circuit diagram displayed) (20GR105010B PHILIPS repair tip)
• No standby, humming and standby LED blinks.
• Unable to retune set or set analogue levels. Store-lock option may be on "Hotel mode".
• Initial volume level is higher than maximum Hotel mode setting. (20GR105010B tip from PHILIPS)
• LED flashes once, then gurgles. (+ extract of circuit diagram)
• Line chirps intermittently. Appliance does not start. Only hum from loudspeakers.
• Trips. at start-up (intermittently). (+ extract of circuit diagram)
• 6613 type change. (+ extract of circuit diagram)
• Blank raster. OSD OK .
• Reduced horizontal size. (part of circuit diagram displayed)
• Stored channels are partially lost.
• Focus adjustment.
• No function. When switching on with RC, standby LED lights up. (extract of circuit diagram attached)
• Won't tune a new channel. Won't activate store function. Picture OK. Sound OK.
• No power with abnormal sound. (part of circuit diagram displayed)
• Intermittently no picture and sound at switch on. Buzz from speaker. (picture attached)
• Sound varies with picture content.
• No functions. Slow start-up. (part of circuit diagram displayed)
• No functions, hum in loudspeakers. (with circuit diagram extract)
• How to reset microprocessor.
• Line tearing. on lower half screen. (+ extract of circuit diagram)
• Does not start. Slight buzzing in loudspeaker.
• Bright flash on screen. No picture or sound. (part of circuit diagram displayed)
• Random breakdown of line output transistor. (with circuit diagram extract)
• How to de-activate Hotel-Mode.
• Cannot be programmed and search does not function. Only limited volume adjustable.
• Spurious nonsense OSG. Goes to standby after 0.5-2hrs. Loss of tuning.
• No audio.
• Tuning procedure.
• Set dead with just 5V on the 95V line. Standby LED is on but set won't start. (part of circuit diagram displayed) (PHILIPS - 20GR105010B information)
• Vertical size varies. intermittently.
• 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.
• Slow start-up.
• Change of C2523. (20GR105010B tip from PHILIPS)
• No tuning. (extract of circuit diagram attached)
• No sound or picture. Low hum from speaker. (extract of circuit diagram attached)
• Correction to service manual LOT winding. (service info for PHILIPS -20GR105010B)
• Intermittently narrow picture, but corrects itself shortly after.
• Whistling.
• Secondary main power supply OK except +9V at 5.8V
• Loud chriping after switch on. It becomes lower after a short time.
• No line output.
• No channel search. No OSD. (with circuit diagram extract)
• Low audio. (part of circuit diagram displayed) (20GR105010B tips)
• No picture. TXT OK . (with circuit diagram extract)
• Appliance will not switch on at times, but hums in the power supply section.
• Picture separating line appears. Whistling.
• Chopper inoperative. (extract of circuit diagram attached)
• No tuning, no remote volume control. (+ extract of circuit diagram)
• "Store" key does not work. (picture attached) (20GR105010B PHILIPS repair tip)
• Dead. Low frequency noise on sound.
• Sound increases intermittently or "pops", especially during bright scenes. (part of circuit diagram displayed)
• Using a lamp as a load. (service info for PHILIPS -20GR105010B)
• To improve performance with prerecorded cassettes. (extract of circuit diagram attached) (service info for PHILIPS -20GR105010B)
• No tuning. only on certain channels.
• Service manual correction. (extract of circuit diagram attached)
• Modification introduced to +9V supply.
• Line output stage does not function.
• Poor synchronisation. when cold. (extract of circuit diagram attached)
• During picture changes sometimes a volume increase (plop) is heard. (picture attached)
• Very slight vertical foldover with interferences similar to EHT arcing, especially on very white scenes.
• Unstable tuning.
• Green screen and at other times no tuning. (picture attached) (service info for PHILIPS -20GR105010B)
• Sound varies with picture content.
• Noise in audio.
• Will not tune, drifts, colour disappears or interference on a certain channel. (e.g. channel 5 and 59)
• Green raster. Faint picture. Flyback lines.
• Green picture after few hours, intermittently fault disappears for short while when switching from a station to another. Strange characters in OSD.
• Bright flash on screen and no picture or sound after a few minutes. (picture attached)
• Standby LED lights up and switches off at power on. Appliance will not start up.
• Excessive HV. after a while.
• Skips channels during tuning. only on certain channels. (PHILIPS - 20GR105010B information)
• +9V supply modification. (+ extract of circuit diagram)
• LED switches on then off immediately.
• No freeze frame or intermittent freeze frame; no sound. (with circuit diagram extract)
• Does not start up. Light buzz from loudspeaker. Standby LED produces one brief blink.
• Picture only in two bars in upper screen section, the rest is dark. (+ extract of circuit diagram)
• Replacement of surface mounted diode 6637. (with circuit diagram extract) (20GR105010B tips)
• White screen with flyback lines. Excessive brightness which increases until PSU switches to protection mode. (with circuit diagram extract)
• Memory loss. (with circuit diagram extract)
• Control micro processors.
• Appliance can not be programmed. Search does not function. Only limited volume control.
• PSU switches off with load at U95V. (extract of circuit diagram attached)
• No functions. when cold.
• Picture displays lines and strange foldover effect at centre.
• No function at switch on from standby. Switches to LOCK (hotel) mode. (part of circuit diagram displayed)
• Search jumps on UHF.
• Line output transistor running hot. (+ extract of circuit diagram)
• To remove store/lock.
• Only half a picture. (picture attached)
• Intermittent colour.
• Vertical collapse. (with circuit diagram extract)
• Low audio.
• No picture (when cold).
• Volume varies. depending on picture content. (part of circuit diagram displayed)
• Colour disappears with VCR-scan (picture search). (picture attached)
• PSU peeps +95 is ca 0,8v
• SIF DET adjustment procedure.
• Sound goes to max. intermittently and HT varies. (part of circuit diagram displayed)
• Automatic fine tuning (AFT) field alignment procedure.
• No audio. (20GR105010B PHILIPS repair tip)
• Slow start up of power supply. (picture attached) (PHILIPS - 20GR105010B information)
• The switched-mode power supply cannot be loaded.
• Programme channel search cannot be called up.
• Change of C2523.
• Initial volume level is higher than maximum hotel mode setting.
• Frame has shifted sideways. Appliance whistles and does not oscillate correctly. (extract of circuit diagram attached)
• Streaks in picture. Picture pulls and rolls intermittently.
• Quick hiccup. (picture attached)
• No connection for headphone.
• Error codes.
• Blank or green raster. Flyback lines. Faint picture or normal picture. (extract of circuit diagram attached) (PHILIPS - 20GR105010B information)
• No tuning or on screen tuning display.
• No HT from chopper circuit. (picture attached)
• White unmodulated raster. Picture missing. (with circuit diagram extract)
• Stored channels drift off tune briefly after switch on. Crackle in sound.
• Dead due to action of over voltage protection circuit.
• No audio.
• Appliance does not function with standby light flashing.
• Line tearing, especially with bright scences. (+ extract of circuit diagram)
• To release hotel mode (child lock).
• Difficult to tune programmes, stations shifted on tuning bar.
• Microcomputers and screening plate.
• Humming, motor noise and other unusual noises. Normal picture.
• Right side of picture discoloured.
• Stuck in standby. (+ extract of circuit diagram)
• No vertical deflection. (with circuit diagram extract) (20GR105010B PHILIPS repair tip)
• Volume can't be tuned down. No tuning with RC. (extract of circuit diagram attached)
• Vertical line. on the right half screen. (extract of circuit diagram attached)
• PSU does not start up, if appliance was switched off for a day. Appliance functions after short switch on/off. (with circuit diagram extract)
• Power supply does not oscillate. (with circuit diagram extract)
• Protection device (thyristor THY6641) is triggered at switch on. (extract of circuit diagram attached)
• Menu rolling. (with circuit diagram extract)
• Turns on automatically. No RC or front panel controls.
• Picture shifts. (picture attached)
• No colour.
• To put into hotel mode.
• Field collapse normally with blank picture. (extract of circuit diagram attached)
• How to switch off Hotel-Mode.
• Line down middle of screen. (extract of circuit diagram attached)
• Fizzling sound from speakers at start-up and intermittently picture jagged.
• Two lines going around. (+ extract of circuit diagram)
• No picture. No sound. Switching on and off from Standby OK.
• Appliance hums slightly (no speaker) horizontal end stage and power supply transistor are ok. Unfortunately no service instructions available.
• Crackling and popping in sound after a short time.
• Picture shifted to the left. intermittently. Line tearing. intermittently. (with circuit diagram extract)