20GR1056 / PHILIPS [TV]

• Vertical collapse. (extract of circuit diagram attached)
• How to de-activate Hotel mode.
• Loosing colour during play-back of a video tape. (with circuit diagram extract)
• No picture. No sound. Purring sound in loudspeaker. (with circuit diagram extract)
• Buzzing sound then switches off.
• No start up from cold and humming.
• Stops at start up. (extract of circuit diagram attached)
• Random breakdown of line output transistor. (with circuit diagram extract)
• No voltage from PSU. (part of circuit diagram displayed)
• Trips. at start-up (intermittently). (picture attached)
• Line output stage only starts up for a short time. (with circuit diagram extract)
• No switch on. Low noise on sound. (extract of circuit diagram attached)
• Intermittent colour.
• Intermittent destruction of line o/p transistor. (part of circuit diagram displayed)
• Bright flash on screen and no picture or sound after a few minutes. (+ extract of circuit diagram)
• Dead. Low frequency noise on sound.
• No picture and sound. Low hum intermittently, no function.
• Sound increases intermittently or "pops", especially during bright scenes. (part of circuit diagram displayed)
• No regulation. (+ extract of circuit diagram)
• No functions. after start-up (intermittently).
• Error codes.
• No picture or sound but RCU works correctly. LED flashes when the handset is tried. (picture attached)
• No +9V, line output stage is OK. (with circuit diagram extract)
• Tuning drift, when it is hot the tuning is lost on channel change. (service info for PHILIPS -20GR1056)
• Cannot change tuning or stored settings. (picture attached)
• Defective IC7103 SV-production. (with circuit diagram extract)
• Poor synchronisation. (part of circuit diagram displayed)
• +B very high. (+ extract of circuit diagram)
• Blank raster. OSD OK .
• Drive for high voltage missing. (part of circuit diagram displayed)
• No audio.
• How to switch OFF Hotel-Mode.
• Appliance will not switch on at times, but hums in the power supply section.
• Picture is poor with rippling on verticals. (+ extract of circuit diagram)
• SOPS defective. (picture attached)
• Dim picture with Hanover bars.
• Correction to service manual LOT winding.
• Difficultly in tuning to correct position.
• How to de-activate volume limiter.
• No start-up. when cold. (part of circuit diagram displayed)
• Line output transistor TR7528 fails at switch on. (20GR1056 PHILIPS repair tip)
• Initial volume level is higher than maximum Hotel mode setting.
• 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 tuning. only on certain channels.
• Comes on in standby. When program button pressed standby lamp blinks then goes off.
• Green picture with retrace lines. After a few restarts picture OK.
• Dead. Low hum.
• Enter service mode.
• No function at switch on from standby. Switches to LOCK (hotel) mode. (part of circuit diagram displayed)
• How to switch off Hotel-Mode:
• Low audio.
• Search jumps on UHF.
• No function. Motorboating from PSU. TV starts up randomly. Intermittent fault.
• Only half a picture. (part of circuit diagram displayed)
• Picture only in two bars in upper screen section, the rest is dark. (with circuit diagram extract)
• Line down middle of screen. (with circuit diagram extract)
• Hums softly. (part of circuit diagram displayed)
• Low 5V to micro chip. (part of circuit diagram displayed)
• Dim picture with Hanover bars visible. (part of circuit diagram displayed)
• Sometimes when turned on, green screen only with flyback lines, at other times no tuning and channel will not change. (+ extract of circuit diagram)
• Change of C2523. (PHILIPS - 20GR1056 information)
• Green raster. Faint picture. Flyback lines.
• Tuning procedure. (PHILIPS - 20GR1056 information)
• PSU does not start up, if appliance was switched off for a day. Appliance functions after short switch on/off. (part of circuit diagram displayed)
• No transmitters to adjust and the sound is not controllable.
• White screen with flyback lines. Excessive brightness which increases until PSU switches to protection mode. (+ extract of circuit diagram)
• No freeze frame or intermittent freeze frame; no sound. (picture attached)
• No functions. Hum in loudspeaker. No LED lit. (20GR1056 PHILIPS repair tip)
• Line tearing and rope effect.
• Reduced vertical size. at top.
• Picture shifted to the left. intermittently. Line tearing. intermittently. (part of circuit diagram displayed)
• Hotel Mode activates by itself. (+ extract of circuit diagram)
• Change of C2523.
• Interference in audio. Interference in picture. (extract of circuit diagram attached)
• Colours flicker and disappears.
• No audio.
• Search jumps on UHF.
• Set goes accidentally into hotel mode.
• Horizontal hold adjustment procedure.
• Whistling.
• Replacement of TDA7052 with a TDA7052A. (service info for PHILIPS -20GR1056)
• Stored channels drift off tune briefly after switch on. Crackle in sound.
• No tuning.
• Tuning menu can not be called. All other functions OK.
• Volume goes to max. No volume control.
• Stuck in standby. (part of circuit diagram displayed)
• Volume change with great fluctuations in brightness. (with circuit diagram extract)
• Strongly distorted sound by low volume.
• Dark picture.
• No start-up. intermittently. (20GR1056 PHILIPS repair tip)
• Excessive green.
• Right side of picture discoloured.
• Whistle.
• No sound or picture. Low hum from speaker. (part of circuit diagram displayed) (20GR1056 PHILIPS repair tip)
• No switch on. Weak whistling noise from PSU. LED is OFF.
• No HV.
• Colour flickers. No colour. after a while. (picture attached)
• Low audio. (with circuit diagram extract)
• Connection of a loop system to the TV.
• Local controls inoperative.
• Stuck in hotel mode. (PHILIPS - 20GR1056 information)
• To release hotel mode (child lock).
• Field foldover at switch on from cold. Effect disappears when appliance warms up. (with circuit diagram extract)
• No function. Standby-LED lights up. Appliance switches on but no picture or sound.
• SIF DET adjustment procedure.
• No voltage from PSU, computer does not work. (+ extract of circuit diagram) (20GR1056 PHILIPS repair tip)
• Switches to standby. (extract of circuit diagram attached)
• No sound. Picture OK. After a short time TV stops. High frequency noise from PSU. (part of circuit diagram displayed)
• Intermittent colour.
• Enable Hotel mode. (PHILIPS - 20GR1056 information)
• Unable to tune or set volume in Prefix mode.
• Search jumps on UHF.
• No colour.
• Picture fails for a short time. (with circuit diagram extract)
• Using a lamp as a load.
• Vertical size varies. intermittently. (20GR1056 tips)
• Tuning drifts. only on certain channels. (20GR1056 tips)
• No colour. (with circuit diagram extract)
• Horizontal oscillator adjustment procedure.
• Buzzing from PSU. when cold. (with circuit diagram extract)
• Low frequency noise on sound.
• Only some programs with snowy picture can be tuned and on band 1 missing some programs. (extract of circuit diagram attached) (service info for PHILIPS -20GR1056)
• Occasionally appliance does not switch on from standby. No further functions are possible.
• The removal of leaded diodes. (+ extract of circuit diagram)
• Dead. Power LED is OFF (ON in standby). Hissing from PSU.
• No colour and vertical black bar across screen.
• No picture. Audio OK .
• Excessive HV. after a while.
• LED does not flash. Slight buzz in appliance. (with circuit diagram extract)
• Standby LED lights up and switches off at power on. Appliance will not start up.
• PSU check.
• No functions. Sound buzzes in loudspeaker. (picture attached)
• Line output transistor replacement.
• Volume can't be tuned down. No tuning with RC. (picture attached)
• Appliance does not function with standby light flashing.
• Appliance hums slightly (no speaker) horizontal end stage and power supply transistor are ok. Unfortunately no service instructions available.
• Tripping. (extract of circuit diagram attached)
• Green screen and at other times no tuning. (with circuit diagram extract)
• Line transistor 7528 blows within 1 sec. (extract of circuit diagram attached)
• Line output transistor becomes warm and in the course of time it becomes defective. (part of circuit diagram displayed) (PHILIPS - 20GR1056 information)
• How to switch off Hotel-Mode.
• Does not start up at once from cold.
• No vertical deflection. (part of circuit diagram displayed)
• No channel search. No OSD. (picture attached)
• Lines on picture after approx one hour. It consists of a band of bright white lines about two inches wide. (+ extract of circuit diagram)
• Difficult to tune programmes, stations shifted on tuning bar.
• Intermittent audio and picture. (+ extract of circuit diagram)
• Print with linearity coil pos. 5800. (20GR1056 tip from PHILIPS)
• 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)
• Colour disappears with VCR-scan (picture search). (part of circuit diagram displayed)
• Dead. Only hum from speakers. (part of circuit diagram displayed)
• Change of C2523.
• Set won't tune to high frequency channels and lower frequency channels appear to be higher. (with circuit diagram extract)
• No frame or short frame. (part of circuit diagram displayed)
• Unstable tuning.
• 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.
• The tone (sound) tunes well, but the volume cannot be raised.
• Comes on for a short time.
• Quick hiccup. (extract of circuit diagram attached) (20GR1056 PHILIPS repair tip)
• Automatic fine tuning (AFT) field alignment procedure. (service info for PHILIPS -20GR1056)
• Does not stop on stations.
• Picture centering has shifted horizontally. No OSD.
• No colour.
• Won't tune a new channel. Won't activate store function. Picture OK. Sound OK. (20GR1056 tips)
• Initial volume level is higher than maximum hotel mode setting.
• After replacement of the line output transistor BUT12, picture with trapezoid effect, BUT12 overheats and goes defective again. (part of circuit diagram displayed)
• Trips. (extract of circuit diagram attached)
• Line out of phase. Black band in centre of screen. No colour.
• Distorted audio.
• How to de-activate Hotel-Mode.
• Defective purity.
• Slow start up of power supply. (with circuit diagram extract) (20GR1056 tips)
• Vertical amplitude cannot be fully adjusted, TXT lines can be seen. (picture attached)
• Loud chriping after switch on. It becomes lower after a short time.
• Picture displays lines and strange foldover effect at centre.
• Processor numbers (changed).
• Intermittent channel drift in UHF. Channel search OK. VHF OK.
• Poor sync. AGC fault. (20GR1056 tip from PHILIPS)
• Skips channels during tuning. only on certain channels.
• Set does not retune or program etc (PHILIPS - 20GR1056 information)
• No function. When switching on with RC, standby LED lights up. (with circuit diagram extract)
• 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. (picture attached)
• No picture. TXT OK . (picture attached)
• No horizontal synchronisation. (+ extract of circuit diagram) (service info for PHILIPS -20GR1056)
• Stops working every 2 or 3 hrs. Only starts again after switching off and on again.
• Line output stage does not function.
• Line output stage does not start up. (picture attached)
• Power supply fault finding. (+ extract of circuit diagram)
• Unstable tuning.
• No switch on after activating mains switch. Whistling noise. (with circuit diagram extract)
• Dark picture. Audio OK .
• Programme channel search cannot be called up.
• Blank raster. Flyback lines. (with circuit diagram extract)
• Service manual correction. (picture attached)
• Power supply does not oscillate. (+ extract of circuit diagram)
• Whistling from PSU. (part of circuit diagram displayed)
• Volume varies. depending on picture content. (extract of circuit diagram attached)
• White balance adjustment.
• Blank raster. No audio. after a while. (+ extract of circuit diagram)
• No functions. when cold.
• No functions. Slow start-up. (part of circuit diagram displayed)
• Green picture.
• Adjustment of +95V. (extract of circuit diagram attached) (20GR1056 tip from PHILIPS)
• Tuning drifts. (extract of circuit diagram attached)
• No picture. No audio. (picture attached)
• No OSD. Picture OK . (20GR1056 PHILIPS repair tip)
• No tuning. No channel lock. (extract of circuit diagram attached)
• LED flashes once, then gurgles. (with circuit diagram extract)
• Menu rolling. (extract of circuit diagram attached)
• The following production changes were introduced to prevent the set coming on in the store lock mode when switched on from standby. (picture attached)
• Dead. Only standby-LED works. Responds to TURN ON command, but no image and no sound.
• No SOP supply. (+ extract of circuit diagram)
• Change of C2523.
• "Store" key does not work. (+ extract of circuit diagram)
• Appliance is dead with standby LED flashing after a few seconds. (extract of circuit diagram attached) (20GR1056 PHILIPS repair tip)
• Field collapse normally with blank picture. (+ extract of circuit diagram)
• After switching on the CTV "EXT...1.2.3..." appears on the screen.
• Focus adjustment.
• No tuning possible, F2 appears on bottom of picture and S1 on top.
• Bell filter adjustment procedure.
• Programme tuning difficulty, stations shifted on tuning bar. (+ extract of circuit diagram)
• No colour.
• Height excessive. Defective linearity. Field blanking. (with circuit diagram extract)
• No picture. OSD OK .
• No start-up. (part of circuit diagram displayed)
• Programs and PP-settings cannot be changed.
• Becomes defective immediately after switch on.
• Spurious nonsense OSG. Goes to standby after 0.5-2hrs. Loss of tuning.
• No start-up. Standby LED flashes .
• Description of SMPS. (with circuit diagram extract)
• +9V supply modification. (+ extract of circuit diagram)
• Reluctant to start up from cold.
• Limited volume. No channel search.
• Switches off by itself. after a while. (+ extract of circuit diagram)
• Line chirps intermittently. Appliance does not start. Only hum from loudspeakers.
• Dead, very slight whistle from PSU.
• Horizontal white line.
• No start-up. intermittently (when cold). (extract of circuit diagram attached)
• Colours flickers and disappears.
• Picture separating line appears. Whistling.
• Intermittent colour.
• Control panel cover.
• Buzz in audio (intermittently). (part of circuit diagram displayed)
• Intermittent colour and intermittent dark vertical bar on picture.
• Green screen with flyback lines. Green oscillations. Noise as if HV leaky on picture tube base. (part of circuit diagram displayed)
• Vertical line. on the right half screen. (part of circuit diagram displayed)
• Modification at line transformer position 5530. (+ extract of circuit diagram)
• Unstable tuning.
• Vertical vibration in cold condition of set.
• Chopper inoperative. (picture attached)
• Does not start up. Light buzz from loudspeaker. Standby LED produces one brief blink.
• No tuning. Impossible to change analog control adjustments (brightness, sound, etc.). (with circuit diagram extract)
• Crackling and popping in sound after a short time.
• Fizzling sound from speakers at start-up and intermittently picture jagged.
• Dead. Low level buzz from loudspeaker. (picture attached)
• No tuning or on screen tuning display.
• No audio.
• No functions. Standby LED flashes. Relay switches to ON.
• No audio.
• PSU switches off with load at U95V. (picture attached)
• Initial volume level is higher than maximum Hotel mode setting.
• 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. (with circuit diagram extract) (service info for PHILIPS -20GR1056)
• Bright picture. Flyback lines.
• Excessive horizontal size.
• New infra red receiver.
• The TV does not stop during the tuning phase.
• Searches for channels continuously. (picture attached)
• Stored channels are partially lost.
• Dead. Strange noises from PSU/ line output transformer. (part of circuit diagram displayed) (PHILIPS - 20GR1056 information)
• Sound varies with picture content.
• Smeary, washed out picture with bent verticals. (+ extract of circuit diagram)
• Cannot be programmed and search does not function. Only limited volume adjustable. (20GR1056 tip from PHILIPS)
• Memory cannot be opened via "rhombus". Stored channels cannot be changed.
• No power supply start up in loaded condition (eg. with lamp).
• Green picture. (extract of circuit diagram attached)
• Does not shut down (when cold).
• Excessive brightness.
• Squealing from PSU.
• Tuning drifts. only on certain channels (after a while).
• Sound varies with picture content.
• White unmodulated raster. Picture missing. (+ extract of circuit diagram)
• Production change to line drive. (with circuit diagram extract)
• Initial volume level is higher than maximum Hotel mode setting.
• No line output.
• Secondary main power supply OK except +9V at 5.8V
• PSU peeps +95 is ca 0,8v
• Picture passes out in the centre.
• Bright flash on screen. No picture or sound. (picture attached)
• The fuse and the bridge diodes in the power supply blow.
• Picture shifted to the right. (+ extract of circuit diagram)
• Line tearing. on lower half screen. (picture attached)
• Display goes to F1 a few seconds after switching the set on.
• Sound returns gradually after channel change. (with circuit diagram extract)
• No audio.
• To improve performance with prerecorded cassettes. (picture attached)
• PAL colour amplitude adjustment procedure. (20GR1056 tips)
• Colours flickers and disappears.
• Picture shifts. (extract of circuit diagram attached)
• Reduced horizontal size. (with circuit diagram extract)
• Unregulated power supply. Pulsating picture and surging sound. (with circuit diagram extract)
• Set comes on in store lock mode. (part of circuit diagram displayed) (PHILIPS - 20GR1056 information)
• Poor synchronisation. when cold. (extract of circuit diagram attached) (20GR1056 PHILIPS repair tip)
• Picture shifted horizontally. (picture attached)
• Green screen with flyback line. No picture. OSD OK.
• No tuning - no channels.
• After working normally for a while the TV blocks in any position. The functions do not work.
• Vertical oscillator adjustment procedure.
• Does not start. Slight buzzing in loudspeaker.
• Rolling or jittering picture. (with circuit diagram extract)
• Programme tuning difficulty. Stations has shifted on tuning bar.
• Humming, motor noise and other unusual noises. Normal picture.
• Skips channels during tuning. (picture attached)
• Green picture.
• Sound varies with picture content.
• No function, starts up from standby, then goes out.
• Blank or green raster. Flyback lines. Faint picture or normal picture. (picture attached)
• Error messages indicated by front display flashing. (with circuit diagram extract)
• Replacing the EAROM. (part of circuit diagram displayed)
• Colour sync adjustment procedure.
• Sound goes to max. intermittently and HT varies. (+ extract of circuit diagram)
• Dead due to action of over voltage protection circuit.
• No sound. No picture. Faint motorboating noise. (20GR1056 PHILIPS repair tip)
• No or intermittent start-up. (picture attached)
• The picture is slightly yellow, flyback lines. Slightly noisy, no own recording possible.
• Doesn't tune stations correctly. When cold, crossed lines on low UHF channels. (picture attached)
• No HT from chopper circuit. (+ extract of circuit diagram)
• 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.
• Identification coil adjustment.
• The switched-mode power supply cannot be loaded.
• Dead with whistling noise coming from power supply. (with circuit diagram extract)
• No tuning bar when install button pressed and set not in hotel mode. (picture attached)
• No start-up. Buzzing from speakers and working noise of PSU. (PHILIPS - 20GR1056 information)
• Unable to retune set or set analogue levels. Store-lock option may be on "Hotel mode".
• Wavy picture. on the right.
• Change of C2523.
• Very slight vertical foldover with interferences similar to EHT arcing, especially on very white scenes.
• Poor sound, cannot be adjusted louder. When adjusting, sound cuts out. (extract of circuit diagram attached)
• No colour in OSD.
• Red picture. Flyback lines.
• Memory loss. (extract of circuit diagram attached)
• Delay RF AGC adjustment procedure.
• Settings do not stay in position.
• Excessive vertical size.
• Noise in sound. Mute does not function.
• Store lock on the appliance. (PHILIPS - 20GR1056 information)
• Buzz in audio. No picture.
• Sound motorboating when cold. (picture attached)
• Intermittent green picture, channels cannot be programmed. (with circuit diagram extract)
• Two lines going around. (extract of circuit diagram attached) (20GR1056 tips)
• 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 attached)
• Slight foldover at upper part of picture if appliance is switched on when cold. Fault disappears after few minutes. (part of circuit diagram displayed)
• 10V on 95V line. (+ extract of circuit diagram)
• Sound varies with picture content.
• Standby just pulsing.
• Hotel mode.
• No standby, humming and standby LED blinks.
• Stations won't change. Picture and sound OK. Other functions OK.
• No picture. (+ extract of circuit diagram)
• Streaks in picture. Picture pulls and rolls intermittently.
• Hazy flickering picture at top. (extract of circuit diagram attached)
• Does not switch on, standby LED OK.
• U743 tuner replacement. (with circuit diagram extract)
• Line tearing, especially with bright scences. (extract of circuit diagram attached)
• No picture, only squeaks for a short time at switch on then no more functions.
• No power with abnormal sound. (with circuit diagram extract) (PHILIPS - 20GR1056 information)
• How to reset microprocessor.
• Appliance can not be programmed. Search does not function. Only limited volume control.
• Slow hiccup (part of circuit diagram displayed)
• No line start up; +95 available; +9V is about 4.5V. (part of circuit diagram displayed)
• Picture is mostly green with flyback lines after 10 secs from switch on.
• No start up, just a buzzing noise in speakers. (+ extract of circuit diagram)
• Intermittently dead. (+ extract of circuit diagram)
• Dead. At switch on the stand by LED flashes.
• Failures in the power supply. (+ extract of circuit diagram)
• Dead. (+ extract of circuit diagram)
• No line output stage. (part of circuit diagram displayed)
• Poor reproduction of copy protected tapes. (+ extract of circuit diagram)
• Protection device (thyristor THY6641) is triggered at switch on. (picture attached)
• Memory content dropout at positions 4 and 5.
• Colour amplitude and phase adjustment procedure. (20GR1056 tips)
• Line output stage TS7528 is defective. (part of circuit diagram displayed)
• No picture (when cold).
• New IR receiver. (20GR1056 tips)
• Programming unoperational. Limited sound adjustment possible. (20GR1056 PHILIPS repair tip)
• Doesn't store stations correctly.
• LED switches on then off immediately.
• High voltage transistor defective after a while.
• No functions, hum in loudspeakers. (picture attached)
• Unstable tuning.
• The TV cannot hold the picture.
• No tuning. (part of circuit diagram displayed)
• CRT types. (20GR1056 tip from PHILIPS)
• 6613 type change. (extract of circuit diagram attached) (PHILIPS - 20GR1056 information)
• Will not tune, drifts, colour disappears or interference on a certain channel. (e.g. channel 5 and 59)
• Green picture after few hours, intermittently fault disappears for short while when switching from a station to another. Strange characters in OSD.
• Does not regulate +95V.
• Intermittently narrow picture, but corrects itself shortly after.
• How to de-activate Hotel-Mode:
• Line output transistor running hot. (part of circuit diagram displayed)
• Noise in audio.
• Blue picture. Coloured lines.
• How to enter/exit HOTEL mode.
• During picture changes sometimes a volume increase (plop) is heard. (picture attached)
• Microcomputers and screening plate.
• Enable Hotel mode. Disable hotel mode.
• Dead set. Tries to start.
• No function. Standby LED flashes briefly. (with circuit diagram extract)
• Replacement of surface mounted diode 6637. (picture attached)
• 95V available. 9V is only 5.2V. Slight buzzing from loudspeakers.
• Picture appears slowly.
• To remove store/lock.
• No connection for headphone. (20GR1056 tip from PHILIPS)
• Vertical roll. (+ extract of circuit diagram)
• No picture. No sound. Switching on and off from Standby OK. (20GR1056 PHILIPS repair tip)
• Modification introduced to +9V supply.
• Buzzing.
• No operation.
• No audio.
• Reluctant to start from cold (part of circuit diagram displayed) (20GR1056 PHILIPS repair tip)
• Lines across top of picture about 8" in first 100 lines. (extract of circuit diagram attached)
• To put into hotel mode.
• Microprocessor screening plate. (part of circuit diagram displayed)
• Green picture. after warm-up. Lines in picture. after warm-up. Does not change channels.
• No audio.
• Picture is faint with hanover bars. (part of circuit diagram displayed)
• Intermittently no picture and sound at switch on. Buzz from speaker. (+ extract of circuit diagram)
• No picture, sound ok but on turning up A1 control, frame collapse. (part of circuit diagram displayed)
• Does not switch on. LED is lit in standby. If appliance is switched on with RC, LED switches off.
• Difficult startup. Rattling sound from line output trafo.
• Blown chopper. (picture attached)
• Slow start-up.
• Line output transistor fails repeatedly. (with circuit diagram extract)
• Frame has shifted sideways. Appliance whistles and does not oscillate correctly. (extract of circuit diagram attached)
• Right hand side of screen has a line.
• Control micro processors.
• Initial volume level is higher than maximum Hotel mode setting.
• R-Y and B-Y discriminator adjustment procedure. (picture attached)
• No tuning, no remote volume control. (with circuit diagram extract)
• No start up. No standby. Attempts to start up, but fails.
• Intermittently dead. after start-up.
• V-centre adjustment procedure.