20GR105016B / PHILIPS [TV]

• Defective IC7103 SV-production. (part of circuit diagram displayed) (service info for PHILIPS -20GR105016B)
• Intermittently no picture and sound at switch on. Buzz from speaker. (extract of circuit diagram attached)
• Buzzing.
• No picture, sound ok but on turning up A1 control, frame collapse. (with circuit diagram extract)
• Initial volume level is higher than maximum hotel mode setting.
• No start-up. (part of circuit diagram displayed)
• Defective purity.
• Does not start. Slight buzzing in loudspeaker.
• No functions. Sound buzzes in loudspeaker. (extract of circuit diagram attached)
• Limited volume. No channel search.
• Appliance can not be programmed. Search does not function. Only limited volume control.
• No start-up. intermittently (when cold). (picture attached)
• No power with abnormal sound. (+ extract of circuit diagram)
• Colour amplitude and phase adjustment procedure.
• No switch on. Low noise on sound. (part of circuit diagram displayed)
• Line chirps intermittently. Appliance does not start. Only hum from loudspeakers.
• Picture is faint with hanover bars. (+ extract of circuit diagram) (20GR105016B tips)
• Enter service mode.
• Line output stage does not function.
• Green picture. (part of circuit diagram displayed)
• Sound varies with picture content.
• No standby, humming and standby LED blinks.
• Production change to line drive. (with circuit diagram extract)
• Store lock on the appliance.
• Sound increases intermittently or "pops", especially during bright scenes. (picture attached)
• 10V on 95V line. (+ extract of circuit diagram) (20GR105016B PHILIPS repair tip)
• No function, starts up from standby, then goes out.
• No picture and sound. Low hum intermittently, no function.
• Unregulated power supply. Pulsating picture and surging sound. (with circuit diagram extract)
• Dead. (extract of circuit diagram attached)
• +9V supply modification. (part of circuit diagram displayed)
• Programming unoperational. Limited sound adjustment possible.
• Print with linearity coil pos. 5800.
• No audio.
• Vertical amplitude cannot be fully adjusted, TXT lines can be seen. (with circuit diagram extract)
• Change of C2523.
• Intermittently dead. after start-up.
• Dim picture with Hanover bars.
• Stored channels are partially lost. (20GR105016B tips)
• Comes on for a short time. (20GR105016B PHILIPS repair tip)
• Tuning drift, when it is hot the tuning is lost on channel change.
• Whistling.
• Blown chopper. (+ extract of circuit diagram)
• Cannot change tuning or stored settings. (extract of circuit diagram attached)
• Only half a picture. (with circuit diagram extract)
• Does not start up at once from cold.
• Poor synchronisation. (with circuit diagram extract)
• Intermittent channel drift in UHF. Channel search OK. VHF OK.
• Difficultly in tuning to correct position.
• Fizzling sound from speakers at start-up and intermittently picture jagged.
• The removal of leaded diodes. (picture attached)
• Focus adjustment.
• Green picture. after warm-up. Lines in picture. after warm-up. Does not change channels.
• No tuning.
• Vertical oscillator adjustment procedure.
• PSU check.
• +B very high. (with circuit diagram extract)
• Doesn't tune stations correctly. When cold, crossed lines on low UHF channels. (picture attached)
• How to enter/exit HOTEL mode.
• Does not switch on, standby LED OK. (service info for PHILIPS -20GR105016B)
• Does not stop on stations.
• No sound. Picture OK. After a short time TV stops. High frequency noise from PSU. (extract of circuit diagram attached)
• LED switches on then off immediately.
• PAL colour amplitude adjustment procedure.
• Unstable tuning.
• No start up, just a buzzing noise in speakers. (extract of circuit diagram attached)
• Won't tune a new channel. Won't activate store function. Picture OK. Sound OK.
• Poor sync. AGC fault.
• No tuning. Impossible to change analog control adjustments (brightness, sound, etc.). (extract of circuit diagram attached)
• Hazy flickering picture at top. (+ extract of circuit diagram)
• Low 5V to micro chip. (part of circuit diagram displayed)
• Line output transistor fails repeatedly. (+ extract of circuit diagram)
• Sound goes to max. intermittently and HT varies. (+ extract of circuit diagram)
• Picture appears slowly.
• No start up. No standby. Attempts to start up, but fails.
• Vertical size varies. intermittently.
• Skips channels during tuning. only on certain channels.
• Doesn't store stations correctly.
• Display goes to F1 a few seconds after switching the set on.
• Low frequency noise on sound. (PHILIPS - 20GR105016B information)
• Delay RF AGC adjustment procedure.
• 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. (with circuit diagram extract)
• No colour. (20GR105016B PHILIPS repair tip)
• No functions. after start-up (intermittently).
• No sound or raster. The 95V HT supply is present at the line output stage but there is no line drive. (with circuit diagram extract)
• Connection of a loop system to the TV.
• No voltage from PSU, computer does not work. (with circuit diagram extract)
• Memory cannot be opened via "rhombus". Stored channels cannot be changed.
• 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.
• How to switch off Hotel-Mode.
• Interference in audio. Interference in picture. (extract of circuit diagram attached)
• Dead. Only standby-LED works. Responds to TURN ON command, but no image and no sound.
• Unable to retune set or set analogue levels. Store-lock option may be on "Hotel mode".
• Replacement of TDA7052 with a TDA7052A.
• 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.
• Excessive vertical size.
• Appliance will not switch on at times, but hums in the power supply section.
• Bright flash on screen and no picture or sound after a few minutes. (+ extract of circuit diagram)
• Line out of phase. Black band in centre of screen. No colour.
• Horizontal hold adjustment procedure.
• Intermittent destruction of line o/p transistor. (part of circuit diagram displayed)
• To improve performance with prerecorded cassettes. (extract of circuit diagram attached)
• No colour. (PHILIPS - 20GR105016B information)
• No operation.
• Automatic fine tuning (AFT) field alignment procedure.
• Picture passes out in the centre.
• How to switch OFF Hotel-Mode.
• Quick hiccup. (extract of circuit diagram attached)
• CRT types.
• No start-up. Buzzing from speakers and working noise of PSU.
• No power supply start up in loaded condition (eg. with lamp).
• Blank raster. No audio. after a while. (picture attached)
• Blank or green raster. Flyback lines. Faint picture or normal picture. (+ extract of circuit diagram)
• "Store" key does not work. (picture attached)
• LED does not flash. Slight buzz in appliance. (picture attached)
• Line output transistor TR7528 fails at switch on.
• Picture shifted horizontally. (extract of circuit diagram attached)
• Intermittent audio and picture. (picture attached)
• Colour flickers. No colour. after a while. (with circuit diagram extract)
• Red picture. Flyback lines.
• Enable Hotel mode.
• Tripping. (part of circuit diagram displayed)
• Green raster. Faint picture. Flyback lines.
• No horizontal synchronisation. (extract of circuit diagram attached) (PHILIPS - 20GR105016B information)
• Vertical vibration in cold condition of set.
• No picture. No audio. (+ extract of circuit diagram)
• No function at switch on from standby. Switches to LOCK (hotel) mode. (picture attached)
• The TV does not stop during the tuning phase.
• No line output stage. (+ extract of circuit diagram)
• Dim picture with Hanover bars visible. (part of circuit diagram displayed)
• Sound varies with picture content.
• Skips channels during tuning. (part of circuit diagram displayed)
• Picture shifted to the right. (extract of circuit diagram attached) (20GR105016B tip from PHILIPS)
• Dead. Low hum.
• Low audio.
• Slow start-up.
• Horizontal white line.
• Crackling and popping in sound after a short time. (PHILIPS - 20GR105016B information)
• No SOP supply. (part of circuit diagram displayed)
• Dead. At switch on the stand by LED flashes.
• 95V available. 9V is only 5.2V. Slight buzzing from loudspeakers.
• No tuning bar when install button pressed and set not in hotel mode. (+ extract of circuit diagram)
• Spurious nonsense OSG. Goes to standby after 0.5-2hrs. Loss of tuning.
• No picture. Audio OK .
• Noise in audio.
• Two lines going around. (picture attached)
• No functions, hum in loudspeakers. (with circuit diagram extract)
• Appliance hums slightly (no speaker) horizontal end stage and power supply transistor are ok. Unfortunately no service instructions available.
• After replacement of the line output transistor BUT12, picture with trapezoid effect, BUT12 overheats and goes defective again. (+ extract of circuit diagram)
• Change of C2523.
• To remove store/lock.
• Set does not retune or program etc
• No functions. Standby LED flashes. Relay switches to ON.
• No line start up; +95 available; +9V is about 4.5V. (+ extract of circuit diagram)
• No functions. Slow start-up. (with circuit diagram extract)
• Line output transistor becomes warm and in the course of time it becomes defective. (part of circuit diagram displayed)
• No start up from cold and humming.
• No OSD. Picture OK .
• Initial volume level is higher than maximum Hotel mode setting.
• Colours flicker and disappears.
• Line down middle of screen. (extract of circuit diagram attached)
• Unstable tuning.
• Tuning drifts. (extract of circuit diagram attached)
• No sound or picture. Low hum from speaker. (picture attached)
• Initial volume level is higher than maximum Hotel mode setting.
• Sound motorboating when cold. (extract of circuit diagram attached)
• Control panel cover.
• Line transistor 7528 blows within 1 sec. (+ extract of circuit diagram) (service info for PHILIPS -20GR105016B)
• No HT from chopper circuit. (+ extract of circuit diagram)
• Enable Hotel mode. Disable hotel mode.
• Programme tuning difficulty. Stations has shifted on tuning bar. (PHILIPS - 20GR105016B information)
• Colours flickers and disappears.
• Change of C2523.
• Excessive brightness.
• Dead. Only hum from speakers. (with circuit diagram extract)
• To put into hotel mode.
• Slow start up of power supply. (+ extract of circuit diagram)
• Picture displays lines and strange foldover effect at centre. (service info for PHILIPS -20GR105016B)
• Colour disappears with VCR-scan (picture search). (+ extract of circuit diagram)
• PSU switches off with load at U95V. (+ extract of circuit diagram)
• Turns on automatically. No RC or front panel controls.
• No +9V, line output stage is OK. (picture attached)
• Field foldover at switch on from cold. Effect disappears when appliance warms up. (+ extract of circuit diagram)
• Appliance does not function with standby light flashing.
• No switch on after activating mains switch. Whistling noise. (extract of circuit diagram attached)
• Excessive horizontal size.
• Poor synchronisation. when cold. (part of circuit diagram displayed)
• Dead, very slight whistle from PSU.
• No channel search. No OSD. (with circuit diagram extract)
• Identification coil adjustment.
• No or intermittent start-up. (extract of circuit diagram attached)
• No function. Standby-LED lights up. Appliance switches on but no picture or sound.
• Line output stage TS7528 is defective. (+ extract of circuit diagram)
• No function. When switching on with RC, standby LED lights up. (with circuit diagram extract)
• During picture changes sometimes a volume increase (plop) is heard. (with circuit diagram extract)
• Failures in the power supply. (+ extract of circuit diagram)
• Switches to standby. (with circuit diagram extract)
• V-centre adjustment procedure.
• Wavy picture. on the right.
• Line tearing, especially with bright scences. (extract of circuit diagram attached)
• No picture (when cold).
• The switched-mode power supply cannot be loaded.
• No vertical deflection. (with circuit diagram extract)
• White screen with flyback lines. Excessive brightness which increases until PSU switches to protection mode. (with circuit diagram extract)
• The tone (sound) tunes well, but the volume cannot be raised.
• Colours flickers and disappears.
• How to reset microprocessor. (PHILIPS - 20GR105016B information)
• No function. Motorboating from PSU. TV starts up randomly. Intermittent fault.
• No colour. (part of circuit diagram displayed)
• Picture fails for a short time. (with circuit diagram extract)
• No audio.
• Memory loss. (extract of circuit diagram attached)
• Green picture with retrace lines. After a few restarts picture OK.
• Green screen with flyback lines. Green oscillations. Noise as if HV leaky on picture tube base. (picture attached)
• Becomes defective immediately after switch on.
• Processor numbers (changed).
• 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. (with circuit diagram extract) (20GR105016B tips)
• Excessive HV. after a while.
• The following production changes were introduced to prevent the set coming on in the store lock mode when switched on from standby. (with circuit diagram extract)
• Initial volume level is higher than maximum Hotel mode setting.
• Line output stage only starts up for a short time. (part of circuit diagram displayed)
• Green picture.
• No tuning - no channels.
• After switching on the CTV "EXT...1.2.3..." appears on the screen.
• To release hotel mode (child lock). (PHILIPS - 20GR105016B information)
• How to de-activate volume limiter.
• No colour in OSD.
• Right hand side of screen has a line.
• Appliance is dead with standby LED flashing after a few seconds. (with circuit diagram extract) (20GR105016B tip from PHILIPS)
• The fuse and the bridge diodes in the power supply blow.
• Only some programs with snowy picture can be tuned and on band 1 missing some programs. (extract of circuit diagram attached)
• Programs and PP-settings cannot be changed.
• Does not start up. Light buzz from loudspeaker. Standby LED produces one brief blink.
• Search jumps on UHF.
• Intermittent green picture, channels cannot be programmed. (picture attached)
• No audio.
• No voltage from PSU. (with circuit diagram extract)
• Buzzing sound then switches off.
• Set comes on in store lock mode. (extract of circuit diagram attached)
• Streaks in picture. Picture pulls and rolls intermittently.
• No picture. No sound. Purring sound in loudspeaker. (extract of circuit diagram attached) (20GR105016B PHILIPS repair tip)
• Comes on in standby. When program button pressed standby lamp blinks then goes off.
• Dead. Low frequency noise on sound.
• Smeary, washed out picture with bent verticals. (+ extract of circuit diagram)
• Intermittent colour.
• White unmodulated raster. Picture missing. (with circuit diagram extract)
• No frame or short frame. (part of circuit diagram displayed)
• Intermittent colour.
• Tuning drifts. only on certain channels. (service info for PHILIPS -20GR105016B)
• Switches off by itself. after a while. (picture attached)
• Unstable tuning.
• Tuning drifts. only on certain channels (after a while).
• Difficult to tune programmes, stations shifted on tuning bar.
• Slow hiccup (+ extract of circuit diagram)
• Line tearing. on lower half screen. (part of circuit diagram displayed) (20GR105016B PHILIPS repair tip)
• Reduced vertical size. at top.
• Cannot be programmed and search does not function. Only limited volume adjustable.
• Picture only in two bars in upper screen section, the rest is dark. (extract of circuit diagram attached)
• Lines across top of picture about 8" in first 100 lines. (extract of circuit diagram attached)
• U743 tuner replacement. (extract of circuit diagram attached)
• Line output transistor running hot. (part of circuit diagram displayed)
• Does not shut down (when cold).
• No HV.
• Picture separating line appears. Whistling.
• Buzz in audio. No picture.
• Blank raster. Flyback lines. (+ extract of circuit diagram)
• Dark picture.
• New IR receiver.
• Adjustment of +95V. (+ extract of circuit diagram)
• No picture. (picture attached)
• No picture or sound but RCU works correctly. LED flashes when the handset is tried. (picture attached)
• White balance adjustment.
• Error messages indicated by front display flashing. (extract of circuit diagram attached)
• Local controls inoperative.
• No freeze frame or intermittent freeze frame; no sound. (picture attached)
• Field collapse normally with blank picture. (part of circuit diagram displayed)
• SIF DET adjustment procedure.
• No tuning possible, F2 appears on bottom of picture and S1 on top.
• Difficult startup. Rattling sound from line output trafo.
• LED flashes once, then gurgles. (+ extract of circuit diagram)
• No picture. No sound. Switching on and off from Standby OK.
• Change of C2523.
• Whistle.
• Vertical roll. (part of circuit diagram displayed)
• SOPS defective. (+ extract of circuit diagram)
• Right side of picture discoloured.
• Hotel Mode activates by itself. (extract of circuit diagram attached)
• Dead with whistling noise coming from power supply. (extract of circuit diagram attached)
• Green picture.
• No start-up. intermittently.
• Dead due to action of over voltage protection circuit.
• No audio.
• Microprocessor screening plate. (part of circuit diagram displayed)
• Stuck in standby. (+ extract of circuit diagram) (20GR105016B PHILIPS repair tip)
• Distorted audio.
• Memory content dropout at positions 4 and 5.
• No function. Standby LED flashes briefly. (with circuit diagram extract)
• Picture centering has shifted horizontally. No OSD.
• Whistling from PSU. (+ extract of circuit diagram)
• No tuning. (with circuit diagram extract)
• Volume varies. depending on picture content. (extract of circuit diagram attached)
• Does not switch on. LED is lit in standby. If appliance is switched on with RC, LED switches off.
• No tuning or on screen tuning display.
• R-Y and B-Y discriminator adjustment procedure. (part of circuit diagram displayed)
• Change of C2523.
• Dead set. Tries to start.
• Humming, motor noise and other unusual noises. Normal picture.
• Frame has shifted sideways. Appliance whistles and does not oscillate correctly. (picture attached)
• Squealing from PSU.
• Lines on picture after approx one hour. It consists of a band of bright white lines about two inches wide. (+ extract of circuit diagram)
• Standby just pulsing.
• No picture. TXT OK . (picture attached)
• Reluctant to start from cold (with circuit diagram extract) (20GR105016B tips)
• No transmitters to adjust and the sound is not controllable.
• Sound varies with picture content.
• Correction to service manual LOT winding.
• Sound returns gradually after channel change. (picture attached)
• Colour sync adjustment procedure. (service info for PHILIPS -20GR105016B)
• Intermittently dead. (with circuit diagram extract)
• Stops working every 2 or 3 hrs. Only starts again after switching off and on again.
• Picture shifts. (+ extract of circuit diagram) (service info for PHILIPS -20GR105016B)
• No sound. No picture. Faint motorboating noise.
• Hums softly. (extract of circuit diagram attached)
• Sound varies with picture content. (service info for PHILIPS -20GR105016B)
• Stored channels drift off tune briefly after switch on. Crackle in sound.
• How to de-activate Hotel-Mode:
• No picture. OSD OK .
• Unstable tuning.
• Microcomputers and screening plate.
• Blank raster. OSD OK .
• Bright flash on screen. No picture or sound. (+ extract of circuit diagram)
• Loosing colour during play-back of a video tape. (part of circuit diagram displayed)
• Reluctant to start up from cold.
• Strongly distorted sound by low volume. (PHILIPS - 20GR105016B information)
• Excessive green.
• Height excessive. Defective linearity. Field blanking. (+ extract of circuit diagram)
• Trips. (+ extract of circuit diagram) (service info for PHILIPS -20GR105016B)
• Programme channel search cannot be called up.
• Error codes.
• Line tearing and rope effect. (20GR105016B PHILIPS repair tip)
• High voltage transistor defective after a while.
• Sometimes when turned on, green screen only with flyback lines, at other times no tuning and channel will not change. (with circuit diagram extract)
• Dead. Strange noises from PSU/ line output transformer. (part of circuit diagram displayed)
• 6613 type change. (+ extract of circuit diagram)
• Tuning menu can not be called. All other functions OK.
• Settings do not stay in position.
• How to switch off Hotel-Mode: (20GR105016B tip from PHILIPS)
• No tuning. No channel lock. (picture attached)
• Volume change with great fluctuations in brightness. (+ extract of circuit diagram) (service info for PHILIPS -20GR105016B)
• Modification introduced to +9V supply.
• No start-up. Standby LED flashes .
• Secondary main power supply OK except +9V at 5.8V
• Random breakdown of line output transistor. (part of circuit diagram displayed)
• Reduced horizontal size. (picture attached)
• Poor reproduction of copy protected tapes. (part of circuit diagram displayed)
• Noise in sound. Mute does not function.
• Power supply does not oscillate. (with circuit diagram extract)
• Picture is poor with rippling on verticals. (+ extract of circuit diagram)
• Green screen with flyback line. No picture. OSD OK.
• No functions. when cold.
• Picture is mostly green with flyback lines after 10 secs from switch on.
• Line output stage does not start up. (picture attached)
• Programme tuning difficulty, stations shifted on tuning bar. (extract of circuit diagram attached)
• Menu rolling. (+ extract of circuit diagram)
• Horizontal oscillator adjustment procedure.
• No line output.
• Unable to tune or set volume in Prefix mode.
• Intermittent colour and intermittent dark vertical bar on picture.
• Trips. at start-up (intermittently). (part of circuit diagram displayed)
• Dark picture. Audio OK .
• No tuning. only on certain channels.
• PSU does not start up, if appliance was switched off for a day. Appliance functions after short switch on/off. (+ extract of circuit diagram)
• Buzz in audio (intermittently). (part of circuit diagram displayed)
• Replacement of surface mounted diode 6637. (with circuit diagram extract)
• Low audio. (part of circuit diagram displayed)
• 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.
• Loud chriping after switch on. It becomes lower after a short time.
• Does not regulate +95V.
• Picture shifted to the left. intermittently. Line tearing. intermittently. (with circuit diagram extract)
• Set dead with just 5V on the 95V line. Standby LED is on but set won't start. (extract of circuit diagram attached)
• Dead. Power LED is OFF (ON in standby). Hissing from PSU.
• Bell filter adjustment procedure.
• Slight foldover at upper part of picture if appliance is switched on when cold. Fault disappears after few minutes. (extract of circuit diagram attached)
• Vertical collapse. (picture attached)
• Using a lamp as a load. (PHILIPS - 20GR105016B information)
• Search jumps on UHF.
• Service manual correction. (+ extract of circuit diagram)
• New infra red receiver.
• Stops at start up. (extract of circuit diagram attached)
• Control micro processors.
• 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 audio.
• Line output transistor replacement.
• Chopper inoperative. (with circuit diagram extract)
• Set won't tune to high frequency channels and lower frequency channels appear to be higher. (part of circuit diagram displayed)
• No colour and vertical black bar across screen.
• No connection for headphone.
• How to de-activate Hotel-Mode. (20GR105016B tips)
• No regulation. (with circuit diagram extract)
• Description of SMPS. (part of circuit diagram displayed)
• Green screen and at other times no tuning. (part of circuit diagram displayed)
• Buzzing from PSU. when cold. (extract of circuit diagram attached)
• Set goes accidentally into hotel mode.
• Protection device (thyristor THY6641) is triggered at switch on. (picture attached)
• Stations won't change. Picture and sound OK. Other functions OK.
• No audio.
• Occasionally appliance does not switch on from standby. No further functions are possible.
• No functions. Hum in loudspeaker. No LED lit.
• Initial volume level is higher than maximum Hotel mode setting.
• Search jumps on UHF.
• Dead. Low level buzz from loudspeaker. (picture attached)
• Volume goes to max. No volume control.
• No switch on. Weak whistling noise from PSU. LED is OFF.
• Power supply fault finding. (part of circuit diagram displayed)
• Will not tune, drifts, colour disappears or interference on a certain channel. (e.g. channel 5 and 59)
• No audio.
• No picture, only squeaks for a short time at switch on then no more functions.
• Poor sound, cannot be adjusted louder. When adjusting, sound cuts out. (picture attached)
• Hotel mode.
• Drive for high voltage missing. (picture attached) (service info for PHILIPS -20GR105016B)
• No colour. (20GR105016B PHILIPS repair tip)
• Intermittent colour.
• Standby LED lights up and switches off at power on. Appliance will not start up.
• Volume can't be tuned down. No tuning with RC. (picture attached)
• PSU peeps +95 is ca 0,8v
• Tuning procedure.
• Blue picture. Coloured lines.
• The picture is slightly yellow, flyback lines. Slightly noisy, no own recording possible.
• Stuck in hotel mode.
• Searches for channels continuously. (+ extract of circuit diagram)
• Replacing the EAROM. (extract of circuit diagram attached)
• Intermittently narrow picture, but corrects itself shortly after.
• Rolling or jittering picture. (picture attached)
• No tuning, no remote volume control. (picture attached)
• Vertical line. on the right half screen. (picture attached) (20GR105016B tips)
• After working normally for a while the TV blocks in any position. The functions do not work.
• Modification at line transformer position 5530. (extract of circuit diagram attached)
• Very slight vertical foldover with interferences similar to EHT arcing, especially on very white scenes.
• No start-up. when cold. (with circuit diagram extract)
• The TV cannot hold the picture.