348942 FS937 / HANSEATIC [TV]

• Switches off. Program display shows 1.
• Power supply transistor T661 is S/C. (picture attached)
• No picture when switched on with mains switch. Display is OK.
• Sound noisy during stereo.
• Dead. Display OK .
• IF plug-in modules 29504-102.04/.05 and 29504-102.07
• In Secam mode colour fails occasionally.
• Horizontal and vertical jitter, it depends on picture content.
• No sound. Ticking from loadspeaker.
• Colour spots during TXT.
• Repeated fail of line transistor T661.
• Irregular display at start up.
• Program sites higher than 9 are blocked.
• Hardly visible raster with flyback lines at switch on, then goes dark. Sound present.
• No tuning. (picture attached)
• Switches to standby. after a few minutes. (+ extract of circuit diagram)
• Hum of sound and picture intermittently. Microphonic effect from the tuner.
• The high voltage rises and switches the appliance off. (with circuit diagram extract)
• S601 defective, black, T661 S/C. If C at ground of T521 components remain intact (appliance in standby). (part of circuit diagram displayed)
• Dark screen (intermittently). Audio OK . (picture attached)
• Twittering from the speakers in stand by. (picture attached)
• After approx 15 mins flyback lines with no picture content and then goes to standby. Appliance is switched off and after approx 5 mins switches on again then ok. After approx 15 mins same thing happens again.
• No picture. after a few seconds. Audio OK .
• Dark picture.
• No sound. Channel appears on dual channel
• Value of R663 and R666.
• No deflection. Programme display is available.
• Netzteiltransistor T661 hat Kurzschluss. (part of circuit diagram displayed)
• Does not start up using mains switch. It switches to standby.
• Hiss in standby.
• No functions. PSU attempts to start rhythmically.
• No start-up. No display. (part of circuit diagram displayed)
• uP blocks after connecting aerial. Display flashes, changes channels or goes into standby. Impossible to control the TV. (picture attached)
• Switches. When reducing the load (remove a module or disconnect audio end stage) appliance runs perfectly. (+ extract of circuit diagram)
• Goes into standby after ten minutes. No sound and pictures when restarting. Deflection functions after few a minutes then stops.
• EHT collapses.
• Picture and sound are ok, if appliance is operated with the mains key. If switched off with the RC, picture and sound disappear but display remains on. Can no longer be started with the RC but with the mains switch. (+ extract of circuit diagram)
• IC2141, IC2161 and IC811 fail.
• Vertical line. Whistling. after a while.
• Display indicates 1 and 00 after switch on with mains switch. Sometimes no picture or sound.
• When using a descrambler does not process video-in and video-out signal on euro AV bus.
• TDA8140 overheats. (picture attached)
• No vertical deflection.
• Approx. 10cm high white cross is weakly visible in the middle of the picture. (part of circuit diagram displayed)
• The colour and picture sometimes partially disappear during increased brightness.
• Rolling picture or loss of picture. Intermittent switching to TXT.
• No picture. High voltage present. Picture tube heating works. (extract of circuit diagram attached)
• Stuck in standby. (with circuit diagram extract) (348942 tips)
• Noise in audio when cold. When is warmer, noise diminuates. (348942 tip from HANSEATIC)
• Knock sensitive.
• No picture. No sound. Programs can only be adjusted on high channel 21.
• No functions. after a while. No HV. (extract of circuit diagram attached) (348942 tip from HANSEATIC)
• Switches to standby after 10 mins. Slight hum. Normal switch on after 4 mins, operates for 10 mins etc.
• Transistor BUT12A is S/C.
• Switches to standby.
• Horizontal jitter. Vertical jitter.
• No function. Low chirping in transformer TR665.
• No picture. OK via SCART .
• No start-up from standby.
• Picture disappears after some time. No sound. Program display ok. A cross which is approx. 10cm high appears in the middle. Everything ok if appliance is switched off for several hours. (+ extract of circuit diagram)
• Unstable picture at top. Power limiter of TDA 3640/IC 655 switches on in top part with bright picture content.
• Secam display flashes after start-up. No picture, only a weak wide vertical stripe is visible.
• Does not start or only unwillingly, accompanied by noises in the line power supply. Standby mode perfect. (picture attached)
• Deflection module repeatedly failure.
• A 10cm high cross appears in the middle. No picture content. (part of circuit diagram displayed)
• Only switches on after activating mains switch several times. (with circuit diagram extract)
• Wavy lines from top to bottom on left side of picture when picture is dark.
• Intermittent doule image. Verticals are frayed
• No picture. No audio. No display. (picture attached)
• No stereo reception after replacing the tuner.
• Rhythmic cracking noise from speaker when operating and in Stand by. Stereo indication switches on and off by itself.
• Vertically too small, vertical adjustment is influenced by E/W potentiometers.
• BUT76A and fuse 800mA fail after approx 3 weeks. Intermittent loss of picture and sound. (with circuit diagram extract)
• Due to flashover on the focus-spark bridge fault occurs occasionally. Occasionally picture turns dark, switches off, jumps to teletext.
• No audio. intermittently.
• No start-up from standby with RC.
• Switches off, display continues to operate, small vertical line/dot on screen. (with circuit diagram extract)
• The picture width control fails, therefore an east/west fault occurs. (extract of circuit diagram attached)
• Flyback lines. when cold. Shuts down. after a while.
• No picture. No audio. OSD OK .
• Fuse SI624 and T661 blow at switch on. (with circuit diagram extract)
• Change in PSU.
• Diode D671 and R671 blown. (348942 HANSEATIC repair tip)
• No start up. PSU locked.
• No picture, only snow. (348942 HANSEATIC repair tip)
• Horizontal white line. in the centre. (part of circuit diagram displayed)
• PSU whistles. (extract of circuit diagram attached) (HANSEATIC - 348942 information)
• No start up of PSU with normal output voltage. Start up OK with R637 at minimum. (extract of circuit diagram attached)
• Switches off after a short time, still only display and sound present.
• No audio (via AV). Picture OK .
• Snow but no picture. Display shows corresponding channel. works ok in scart.
• Erratic start-up. (+ extract of circuit diagram)
• Bright vertical stripes in the picture.
• After approx 30 mins appliance switches into standby mode.
• After repairing PSU, works for about 20/30 mins then goes into standby. (part of circuit diagram displayed)
• Mains transistor BUT 56 fails after some time. (extract of circuit diagram attached)
• Distorted picture.
• Flyback lines on upper picture edge or blank picture with RGB lines.
• No channel reception although channel indication present.
• Distorted picture (after a few minutes). (service info for HANSEATIC -348942)
• White screen. Flyback lines. Fault occurs intermittently. . (extract of circuit diagram attached)
• Comes on for a short time.
• Power supply BUT and fuse blow at switch on.
• Picture fails intermittently. Unsynchronised figures on black screen. Sound OK.
• Slight noise on switch on. Clicking noise appears when operating the volume control. Stereo sound is ok but mono only hums.
• No tuner reception. Noisy picture. (348942 tip from HANSEATIC)
• Vertical fault.
• Dead. Appliance ticks and functions only after approx. 20 mins.
• PSU does not load correctly. PSU produces chirping noises.
• Blurry picture. No or intermittent picture.
• Tube IC 2930407037../45.
• During operation picture becomes dark for fractions of a sec and sound fails. Occurs approx every 3-4hrs. (HANSEATIC - 348942 information)
• No programme locations greater than 9.
• HiFi does not work.
• Lines in picture.
• Picture is distorted for a few secs. Line tearing and lateral notches. (picture attached)
• No picture. Display OK .
• No E/W correction. (HANSEATIC - 348942 information)
• Value of capacitor C521.
• Clouded display. (service info for HANSEATIC -348942)
• Sound interference on at least on channel. Cannot be started with RC
• Faults occasionally occur on the focus spark bridge, due to flash over the picture occasionally goes dark, switches off and skips to TXT.
• The line output stage is u.s., all the power supply unit voltage is present. (The line output transistor have been changed due to s/c.)
• Green picture with flyback lines at switch on. Switches off then and immediately on. Sound is present.
• After approx. 5-10 mins switches to standby. Can be started immediately again with mains switch but not always with RC. (picture attached)
• BUT76A defective after replacement.
• Low audio.
• No start up. At start up slight arcing noise in tube holder. Display PR01 lit and black screen. No sound. (extract of circuit diagram attached)
• No picture. Flyback lines. (part of circuit diagram displayed)
• Appliance switches off after approx. half an hour. After short breaking period it starts up again. Then everything is repeated.
• Switches off by itself (after start-up).
• Poor focus. (348942 tip from HANSEATIC)
• T661 and fuse 624 fail. No short circuit can be measured. Start up operation is ok. Line mains transformer has already been replaced. (extract of circuit diagram attached)
• Shuts down. (picture attached)
• Dead.
• No mono tone. Stereo ok.
• No picture. Only cross approx. 10cm high in middle of picture. (extract of circuit diagram attached)
• No audio. No picture. PR1 on display.
• Two keys need to be pressed when selecting a programm. (service info for HANSEATIC -348942)
• PSU starts up but pulsates loudly.
• White picture with flyback lines. No sound. Error occurs immediately after start-up or after approx 1 hour.
• Loss of picture/sound due to incoming signal.
• Excessive horizontal size.
• Switches off 30 secs after start up. Beeps when immediately switched on again. At switch on after approx 2 mins, switches off again after 30 secs. (with circuit diagram extract)
• After approx 15 mins the picture still only shows a bright raster.
• Unable to control sound. No sound and encoded picture with Canal Plus.
• High voltage flashovers in the CRT neck. Picture is too small. (+ extract of circuit diagram)
• Dark screen.
• Switches intermittently from a program site to AV. (348942 tips)
• Trips. (picture attached)
• No picture or sound. Defective display indication. At switch on no high voltage builds up.
• No STEREO. intermittently.
• S-shaped distortion in dark parts of picture. (extract of circuit diagram attached)
• No picture (intermittently). No TXT (intermittently).
• Picture fails after some time. Still only a 6cm bluish vertical line. (picture attached)
• Loud audio. Volume uncontrollable.
• No function. No operating- or high voltage after operating for some time. (+ extract of circuit diagram)
• Pincushion distortion.
• Vertical shadings on the right side of the picture, clearly visible during dark picture content. (348942 tips)
• Poor adjustment of E/W and picture width. (with circuit diagram extract)
• Colour disappears locally when brightness/contrast is high. Picture is distorted.
• No picture. Pumping from the loadspeaker. Point is lit in the display
• Line BU often fails. No function.
• Picture has disappeared after 1 to 2 hours. Sound is still present. If the appliance is switched off and then on again the picture reappears.
• Does not start up. Only channel number on display.
• Switches to standby after 20 mins.
• No picture. Audio OK .
• No sound via aerial. Sound ticking when Vol+/- are pressed. OK via AV.
• Modifications to be carried out in the PSU.
• White picture with flyback line after approx 5 mins. No sound.
• Blurry picture. when cold.
• Lateral "notches" of the picture and line tearing in some zones of the picture. (with circuit diagram extract) (service info for HANSEATIC -348942)
• Coloured spots.
• Cycles on/off. Picture OK .
• Switches off a few secs after switch on. Picture and sound for a short time at switch on.
• T521 overheats quickly.
• Loss of colours. Light and dark picture with flyback lines.
• Appliance will not memorize again. Incorrect control functions.
• White screen. Flyback lines. No audio. after warm-up.
• Switches to standby (after a while). (picture attached)
• Switches intermittently to standby. Discharge noises from tripler.
• Horizontal line. (part of circuit diagram displayed)
• RC in continuous function (TP650).
• No or intermittent start-up.
• Slashed picture. (with circuit diagram extract)
• Switches off completely after switching on with mains switch. After 2-3 repeated attempts to switch on it runs perfectly for days. Fault occurs only once a week approx. (extract of circuit diagram attached)
• No function. All voltages are too low. Display ok. (picture attached)
• Switches to standby after approx 15 mins. Can only be switched on again after 3 mins. (part of circuit diagram displayed)
• Intermittent switching to AV.
• E/W fault. Focus problems.
• Reduced vertical size.
• No sound, stereo-indication does not light up.
• Does not switch to standby.
• No raster. after warm-up. Horizontal white line. in the centre.
• After operating for a short time high voltage fails. PSU whistles. Switch appliance off at the mains for 15 mins, appliance functions again. Standby function is ok. Appliance is not temperature sensitive. (+ extract of circuit diagram)
• BUT76A shorts. Power supply IC is ok, power supply diodes ok. Capacitor ok.
• BUT 76 fails repeatedly after operating for some time.
• Picture shifted to the left.
• Picture- and line synchronisation fail. Picture fails horizontally.
• After switching on the appliance it switches off immediately, without the aerial signal the appliance does not switch off.
• Changes the combination power/line deflection.
• No picture. No audio. after a while.
• Occasionally line tearing in a horizontal picture range of approx 20cm wide. The fault disappears when the picture content changes. (extract of circuit diagram attached)
• Switches to standby (intermittently). (HANSEATIC - 348942 information)
• Distorted audio.
• Colour fault.
• Shuts down. intermittently. No start-up. (with circuit diagram extract)
• Picture narrowed to a line and raster for 5 mins when cold. (with circuit diagram extract)
• Grey screen. Flyback lines. (with circuit diagram extract) (service info for HANSEATIC -348942)
• No start up by the On/off switch. Starts up by the RC.
• Light flyback lines when cold. Switches off after some time, also when there are no flyback lines.
• BUT fails repeatedly.
• Sound becomes quieter after approx. 1 hrs. and cannot be turned up.
• No picture (after a while).
• Hiccups. After switching on and off several times hiccupping gets less. Picture appears and sound hums. Picture and sound OK after a while. Snow when connecting cable.
• Distorted picture during tuner operation. ok during AV.
• Switches off after 15 mins. if switched on via power switch. If it is switched on again after a while, it functions for several mins.
• Difficoult startup. Starts up well if mains switch is hold pressed for a longer time.
• Switches to standby, especially if cold. Sometimes it runs for hours. (extract of circuit diagram attached)
• Line tearing. on upper half screen.
• During playback via AV-Scart (various recorders and cassettes), wide stripes in the top part of the picture, shifts and distorts.
• Appliance starts, but CRT socket sparks.
• Primary power supply dead, only approx. 315V dc. voltage at T661 (ON4314). (+ extract of circuit diagram)
• No start up. Hiccups. (part of circuit diagram displayed)
• PSU pulsates.
• Sometimes appliance goes to standby after switching on with the mains switch.
• IC U6202B in tuner always fails.
• No operation.
• Switches off after a short operating time. Display remains on screen. (with circuit diagram extract)
• CRT board.
• Only sound during stereo programmes, or one channel is missing during dual-channel sound. (348942 HANSEATIC repair tip)
• No HV.
• Power supply doesn't start. Light ticking.
• Program 1 to 9 and AV work fine, but higher programs do not appear in the display.
• No mono. No STEREO.
• Vertical fault or no picture (blanking) with TDA8170 or TDA8172. (348942 tips)
• No colour after Teletext has been used.
• Picture and sound fail after some time. Screen is bright, only flyback lines. As a consequence, beam current limiter switches appliance into standby. (picture attached)
• No synchronisation.
• After short operating time it turns itself off. Image becomes for a short while bright. Visible flyback lines. Display operating.
• Intermittent program codes through picture, TXT does not function properly.
• Faulty switching transistor.
• No function. Hiccups only.
• The top of the picture is misshaped (when rising the raster amplitudes).
• Horizontal picture synchronization fails. Intermittently picture becomes dark and one TXT line is visible. If TXT is switched on and off again, picture OK. Sound OK.
• Blows fuse. (extract of circuit diagram attached)
• When using a scart cable the video text or remote control do not function. (348942 tip from HANSEATIC)
• Incorrect vertical linearity. Picture is pinched at the bottom and elongated at the top.
• Picture twitches.
• Attempts to start up. Knocking is audible in loud speaker.
• After switching on the appliance high voltage is built up over a short time then appliance fails again. (+ extract of circuit diagram)
• E/W fault. (+ extract of circuit diagram) (HANSEATIC - 348942 information)
• Goes into black and white at each start of sequence when using a camcorder or a VCR.
• No picture or sound. Only high channel S21 on all program sites.
• Approx. 1 cm missing from upper and lower picture edge after start-up in cold condition. E/W error. Picture is slightly blurred. Picture ok after warm up and appliance functions ok.
• No start-up (intermittently). (+ extract of circuit diagram)
• PSU does not start correctly. (extract of circuit diagram attached)
• Switches off. Display continues to show programme indication. No control with RC.
• No TF1, A2 or FR3 but Canal Plus, Arté and M6 are properly tuned in.
• White picture after 15 mins.
• Line tearing ohm some channels when cold. Very strong when AV selected.
• Line scanning transistor T521 blows. (extract of circuit diagram attached)
• No picture after operating for some time. Channel display is present. No sound. Approx. 10cm large cross in the middle of the picture. It runs again after it has been switched off for several hours.
• Mechanical chirping. (picture attached)
• No functions. (with circuit diagram extract)
• Flyback lines (after start-up).
• During operation +C=20V, +M=11V, voltage for IC676 (+B/)=2V. (picture attached)