348901 FS937 / HANSEATIC [TV]

• Poor focus.
• Light flyback lines when cold. Switches off after some time, also when there are no flyback lines.
• Dead. Appliance ticks and functions only after approx. 20 mins.
• Shuts down. (part of circuit diagram displayed)
• Netzteiltransistor T661 hat Kurzschluss. (extract of circuit diagram attached)
• No stereo reception after replacing the tuner.
• Picture fails after some time. Still only a 6cm bluish vertical line. (picture attached)
• Slashed picture. (extract of circuit diagram attached)
• Twittering from the speakers in stand by. (part of circuit diagram displayed)
• Distorted audio.
• S-shaped distortion in dark parts of picture. (+ extract of circuit diagram)
• No deflection. Programme display is available.
• No picture, only snow.
• PSU whistles. (with circuit diagram extract)
• Only switches on after activating mains switch several times. (with circuit diagram extract)
• Bright vertical stripes in the picture.
• Knock sensitive.
• Flyback lines on upper picture edge or blank picture with RGB lines. (HANSEATIC - 348901 information)
• White picture with flyback lines. No sound. Error occurs immediately after start-up or after approx 1 hour.
• Power supply transistor T661 is S/C. (picture attached)
• No TF1, A2 or FR3 but Canal Plus, Arté and M6 are properly tuned in. (348901 tips)
• Cycles on/off. Picture OK .
• Unstable picture at top. Power limiter of TDA 3640/IC 655 switches on in top part with bright picture content.
• Shuts down. intermittently. No start-up. (picture attached)
• The colour and picture sometimes partially disappear during increased brightness.
• Vertical fault.
• No picture (intermittently). No TXT (intermittently).
• Lines in picture.
• No colour after Teletext has been used.
• 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.
• Picture shifted to the left.
• After approx 15 mins the picture still only shows a bright raster. (HANSEATIC - 348901 information)
• Sound becomes quieter after approx. 1 hrs. and cannot be turned up.
• No function. Hiccups only.
• Does not start up. Only channel number on display.
• Switches off, display continues to operate, small vertical line/dot on screen. (part of circuit diagram displayed)
• Switches off. Display continues to show programme indication. No control with RC.
• BUT76A shorts. Power supply IC is ok, power supply diodes ok. Capacitor ok.
• During operation picture becomes dark for fractions of a sec and sound fails. Occurs approx every 3-4hrs.
• Switches to standby. after a few minutes. (picture attached)
• Modifications to be carried out in the PSU.
• The picture width control fails, therefore an east/west fault occurs. (picture attached)
• E/W fault. Focus problems.
• Display indicates 1 and 00 after switch on with mains switch. Sometimes no picture or sound.
• Change in PSU.
• E/W fault. (part of circuit diagram displayed)
• Picture narrowed to a line and raster for 5 mins when cold. (extract of circuit diagram attached)
• Switches intermittently to standby. Discharge noises from tripler.
• A 10cm high cross appears in the middle. No picture content. (with circuit diagram extract)
• Loss of picture/sound due to incoming signal.
• No picture. No audio. No display. (extract of circuit diagram attached)
• Vertically too small, vertical adjustment is influenced by E/W potentiometers.
• Switches off after a short operating time. Display remains on screen. (extract of circuit diagram attached) (348901 tips)
• No functions. PSU attempts to start rhythmically. (348901 tips)
• Goes into standby after ten minutes. No sound and pictures when restarting. Deflection functions after few a minutes then stops. (348901 HANSEATIC repair tip)
• No picture. Pumping from the loadspeaker. Point is lit in the display
• TDA8140 overheats. (picture attached)
• Picture twitches.
• Colour disappears locally when brightness/contrast is high. Picture is distorted.
• Horizontal white line. in the centre. (part of circuit diagram displayed)
• Sound interference on at least on channel. Cannot be started with RC
• Clouded display.
• Transistor BUT12A is S/C.
• In Secam mode colour fails occasionally.
• No audio. No picture. PR1 on display.
• Excessive horizontal size.
• No function. All voltages are too low. Display ok. (picture attached)
• No programme locations greater than 9.
• Line BU often fails. No function. (HANSEATIC - 348901 information)
• White picture after 15 mins.
• Fuse SI624 and T661 blow at switch on. (part of circuit diagram displayed)
• Noise in audio when cold. When is warmer, noise diminuates.
• Green picture with flyback lines at switch on. Switches off then and immediately on. Sound is present.
• 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.
• Dark screen.
• Mains transistor BUT 56 fails after some time. (picture attached)
• 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.
• Does not switch to standby.
• Slight noise on switch on. Clicking noise appears when operating the volume control. Stereo sound is ok but mono only hums. (348901 HANSEATIC repair tip)
• IC2141, IC2161 and IC811 fail.
• PSU starts up but pulsates loudly.
• Line tearing. on upper half screen.
• No start up. Hiccups. (+ extract of circuit diagram) (HANSEATIC - 348901 information)
• Appliance switches off after approx. half an hour. After short breaking period it starts up again. Then everything is repeated.
• Repeated fail of line transistor T661.
• Program 1 to 9 and AV work fine, but higher programs do not appear in the display. (service info for HANSEATIC -348901)
• After approx. 5-10 mins switches to standby. Can be started immediately again with mains switch but not always with RC. (extract of circuit diagram attached) (service info for HANSEATIC -348901)
• Distorted picture. (348901 tips)
• Loud audio. Volume uncontrollable.
• Approx. 10cm high white cross is weakly visible in the middle of the picture. (with circuit diagram extract)
• Horizontal and vertical jitter, it depends on picture content.
• White picture with flyback line after approx 5 mins. No sound.
• White screen. Flyback lines. No audio. after warm-up.
• Intermittent switching to AV.
• No start-up (intermittently). (extract of circuit diagram attached)
• Picture fails intermittently. Unsynchronised figures on black screen. Sound OK. (348901 tips)
• Vertical line. Whistling. after a while.
• After switching on the appliance it switches off immediately, without the aerial signal the appliance does not switch off.
• Faulty switching transistor.
• No HV.
• During operation +C=20V, +M=11V, voltage for IC676 (+B/)=2V. (part of circuit diagram displayed)
• Blurry picture. when cold.
• No picture or sound. Only high channel S21 on all program sites.
• No start up of PSU with normal output voltage. Start up OK with R637 at minimum. (picture attached)
• T661 and fuse 624 fail. No short circuit can be measured. Start up operation is ok. Line mains transformer has already been replaced. (part of circuit diagram displayed)
• No picture. High voltage present. Picture tube heating works. (+ extract of circuit diagram)
• BUT 76 fails repeatedly after operating for some time.
• Stuck in standby. (part of circuit diagram displayed)
• Poor adjustment of E/W and picture width. (+ extract of circuit diagram)
• No mono. No STEREO.
• Reduced vertical size.
• Intermittent program codes through picture, TXT does not function properly.
• Horizontal jitter. Vertical jitter.
• Incorrect vertical linearity. Picture is pinched at the bottom and elongated at the top.
• Value of capacitor C521.
• Switches to standby after 10 mins. Slight hum. Normal switch on after 4 mins, operates for 10 mins etc.
• Difficoult startup. Starts up well if mains switch is hold pressed for a longer time.
• No function. Low chirping in transformer TR665.
• Tube IC 2930407037../45.
• No start-up from standby.
• 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 attached)
• No synchronisation.
• Deflection module repeatedly failure.
• No picture or sound. Defective display indication. At switch on no high voltage builds up.
• 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.
• Two keys need to be pressed when selecting a programm.
• Occasionally line tearing in a horizontal picture range of approx 20cm wide. The fault disappears when the picture content changes. (part of circuit diagram displayed)
• Program sites higher than 9 are blocked.
• No or intermittent start-up.
• 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. (with circuit diagram extract)
• Faults occasionally occur on the focus spark bridge, due to flash over the picture occasionally goes dark, switches off and skips to TXT. (348901 tips)
• No picture when switched on with mains switch. Display is OK.
• 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. (picture attached)
• Distorted picture (after a few minutes).
• The high voltage rises and switches the appliance off. (picture attached)
• No functions. (with circuit diagram extract) (348901 tip from HANSEATIC)
• Trips. (with circuit diagram extract) (service info for HANSEATIC -348901)
• No STEREO. intermittently. (HANSEATIC - 348901 information)
• Power supply BUT and fuse blow at switch on.
• Picture- and line synchronisation fail. Picture fails horizontally.
• Horizontal line. (with circuit diagram extract)
• Colour fault.
• Dead.
• After switching on the appliance high voltage is built up over a short time then appliance fails again. (part of circuit diagram displayed)
• Vertical shadings on the right side of the picture, clearly visible during dark picture content.
• No picture. No sound. Programs can only be adjusted on high channel 21.
• Dead. Display OK .
• Switches. When reducing the load (remove a module or disconnect audio end stage) appliance runs perfectly. (picture attached)
• Picture and sound fail after some time. Screen is bright, only flyback lines. As a consequence, beam current limiter switches appliance into standby. (part of circuit diagram displayed)
• PSU does not start correctly. (extract of circuit diagram attached)
• Lateral "notches" of the picture and line tearing in some zones of the picture. (with circuit diagram extract)
• Snow but no picture. Display shows corresponding channel. works ok in scart.
• HiFi does not work.
• No vertical deflection. (348901 tips)
• Line scanning transistor T521 blows. (picture attached) (348901 tip from HANSEATIC)
• Switches to standby (after a while). (with circuit diagram extract) (348901 HANSEATIC repair tip)
• No start up by the On/off switch. Starts up by the RC.
• Unable to control sound. No sound and encoded picture with Canal Plus.
• When using a descrambler does not process video-in and video-out signal on euro AV bus.
• Switches to standby, especially if cold. Sometimes it runs for hours. (with circuit diagram extract) (348901 tips)
• Wavy lines from top to bottom on left side of picture when picture is dark.
• No picture. No audio. OSD OK .
• Coloured spots.
• Intermittent doule image. Verticals are frayed
• No picture. Audio OK . (348901 HANSEATIC repair tip)
• No sound. Ticking from loadspeaker.
• Attempts to start up. Knocking is audible in loud speaker.
• No picture. Display OK . (348901 tip from HANSEATIC)
• Switches off. Program display shows 1.
• No start-up from standby with RC.
• 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)
• Appliance will not memorize again. Incorrect control functions.
• T521 overheats quickly.
• High voltage flashovers in the CRT neck. Picture is too small. (+ extract of circuit diagram)
• White screen. Flyback lines. Fault occurs intermittently. . (with circuit diagram extract)
• Switches to standby after 20 mins.
• No tuning. (picture attached)
• Pincushion distortion.
• No start-up. No display. (extract of circuit diagram attached)
• Switches off a few secs after switch on. Picture and sound for a short time at switch on.
• The top of the picture is misshaped (when rising the raster amplitudes).
• CRT board.
• Line tearing ohm some channels when cold. Very strong when AV selected.
• Distorted picture during tuner operation. ok during AV.
• Due to flashover on the focus-spark bridge fault occurs occasionally. Occasionally picture turns dark, switches off, jumps to teletext.
• Switches to standby.
• Diode D671 and R671 blown.
• 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)
• Low audio.
• PSU does not load correctly. PSU produces chirping noises.
• Sound noisy during stereo.
• Grey screen. Flyback lines. (with circuit diagram extract)
• Vertical fault or no picture (blanking) with TDA8170 or TDA8172.
• During playback via AV-Scart (various recorders and cassettes), wide stripes in the top part of the picture, shifts and distorts. (348901 tip from HANSEATIC)
• Flyback lines (after start-up).
• uP blocks after connecting aerial. Display flashes, changes channels or goes into standby. Impossible to control the TV. (picture attached)
• No mono tone. Stereo ok.
• No function. No operating- or high voltage after operating for some time. (with circuit diagram extract)
• PSU pulsates.
• RC in continuous function (TP650).
• Sometimes appliance goes to standby after switching on with the mains switch.
• Only sound during stereo programmes, or one channel is missing during dual-channel sound. (service info for HANSEATIC -348901)
• Switches intermittently from a program site to AV.
• Picture is distorted for a few secs. Line tearing and lateral notches. (+ extract of circuit diagram)
• No audio (via AV). Picture OK .
• Dark screen (intermittently). Audio OK . (part of circuit diagram displayed)
• Switches off by itself (after start-up).
• Primary power supply dead, only approx. 315V dc. voltage at T661 (ON4314). (with circuit diagram extract)
• No audio. intermittently.
• 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 using mains switch. It switches to standby.
• S601 defective, black, T661 S/C. If C at ground of T521 components remain intact (appliance in standby). (picture attached)
• No picture (after a while).
• 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.)
• Hum of sound and picture intermittently. Microphonic effect from the tuner.
• No functions. after a while. No HV. (picture attached)
• Changes the combination power/line deflection. (service info for HANSEATIC -348901)
• Does not start or only unwillingly, accompanied by noises in the line power supply. Standby mode perfect. (+ extract of circuit diagram)
• 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.
• Secam display flashes after start-up. No picture, only a weak wide vertical stripe is visible.
• Hardly visible raster with flyback lines at switch on, then goes dark. Sound present.
• 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.
• Colour spots during TXT.
• No raster. after warm-up. Horizontal white line. in the centre.
• No start up. PSU locked.
• Blows fuse. (picture attached)
• IF plug-in modules 29504-102.04/.05 and 29504-102.07
• Power supply doesn't start. Light ticking.
• Dark picture.
• Goes into black and white at each start of sequence when using a camcorder or a VCR.
• No sound via aerial. Sound ticking when Vol+/- are pressed. OK via AV.
• Switches off after a short time, still only display and sound present.
• Rhythmic cracking noise from speaker when operating and in Stand by. Stereo indication switches on and off by itself.
• No start up. At start up slight arcing noise in tube holder. Display PR01 lit and black screen. No sound. (picture attached)
• BUT76A and fuse 800mA fail after approx 3 weeks. Intermittent loss of picture and sound. (part of circuit diagram displayed)
• Comes on for a short time.
• Irregular display at start up.
• Value of R663 and R666.
• No picture. Only cross approx. 10cm high in middle of picture. (+ extract of circuit diagram)
• Blurry picture. No or intermittent picture.
• No channel reception although channel indication present. (service info for HANSEATIC -348901)
• No picture. No audio. after a while.
• BUT fails repeatedly.
• Switches to standby after approx 15 mins. Can only be switched on again after 3 mins. (extract of circuit diagram attached)
• No operation.
• After short operating time it turns itself off. Image becomes for a short while bright. Visible flyback lines. Display operating.
• IC U6202B in tuner always fails.
• No picture. OK via SCART .
• After approx 30 mins appliance switches into standby mode.
• No E/W correction.
• After repairing PSU, works for about 20/30 mins then goes into standby. (+ extract of circuit diagram) (348901 tips)
• No picture. after a few seconds. Audio OK .
• EHT collapses.
• Rolling picture or loss of picture. Intermittent switching to TXT.
• No sound, stereo-indication does not light up.
• Switches to standby (intermittently).
• Erratic start-up. (extract of circuit diagram attached)
• Appliance starts, but CRT socket sparks. (348901 tips)
• When using a scart cable the video text or remote control do not function.
• No sound. Channel appears on dual channel
• No tuner reception. Noisy picture.
• Mechanical chirping. (+ extract of circuit diagram) (348901 tips)
• BUT76A defective after replacement.
• Flyback lines. when cold. Shuts down. after a while.
• No picture. Flyback lines. (picture attached)
• Hiss in standby.
• Loss of colours. Light and dark picture with flyback lines.