227174 ST55750TEXT / HANSEATIC [TV]

• Switches to standby. (picture attached)
• Power problem.
• No start-up (when cold). (picture attached)
• T60020 is S/C. (part of circuit diagram displayed)
• Switches to standby. intermittently (after a while).
• No TXT. No OSD on program sites. Via AV OK, but OSD shifts to the left.
• Switch transistor S/C. (part of circuit diagram displayed)
• Faulty TXT. intermittently.
• No start-up. intermittently (when cold). (extract of circuit diagram attached)
• No picture. intermittently. Flyback lines. (picture attached)
• Excessive horizontal size.
• Does not read disc. Mechanical noise.
• Setting the line focus.
• No audio.
• Adjusting the AST start.
• PSU defective. (picture attached)
• Dark screen.
• No TXT.
• No colour. via SCART.
• Calling up the timer.
• Switches to standby. after a few seconds. (picture attached)
• Weak contrast. (extract of circuit diagram attached) (227174 tip from HANSEATIC)
• Picture twitches. Horizontal size varies. depending on picture content. (with circuit diagram extract) (227174 tips)
• Unstable HT. (extract of circuit diagram attached)
• No h-drive out from TDA8374. PSU and standby OK. (+ extract of circuit diagram)
• No picture. No TXT. (picture attached) (227174 HANSEATIC repair tip)
• Horizontal lines on screen up to sync tearing and sound crackling when cold for the first 5 mins. (+ extract of circuit diagram)
• Picture geometry adjustment.
• Loud crackling. (+ extract of circuit diagram) (service info for HANSEATIC -227174)
• Low brightness. Low contrast. (227174 tips)
• Switches to standby but pulsates after start. (picture attached) (HANSEATIC - 227174 information)
• Switches to protection mode. after start-up. (picture attached)
• Disable hotel mode.
• Distorted picture on channel 16. On other channels only 2 thin white lines. (with circuit diagram extract)
• No horizontal deflection.
• Trips. depending on picture content.
• Line BU is defective. (+ extract of circuit diagram)
• AFC adjustment. (service info for HANSEATIC -227174)
• Adjusting the channel duration OSD.
• Shuts down. after a while.
• Stuck in standby. (extract of circuit diagram attached)
• Contrast decreases if Audio key is pressed. At program switch over one program is skipped. (extract of circuit diagram attached)
• No start-up. (part of circuit diagram displayed)
• No reset. (+ extract of circuit diagram)
• Intermittently power switch disconnects. (part of circuit diagram displayed)
• AFC reference adjustment. (part of circuit diagram displayed)
• Picture up in screen and goes narrow. (+ extract of circuit diagram)
• Noise in audio.
• How to deactivate eco switch.
• Raster foldover. Lines at bottom of picture. (+ extract of circuit diagram) (service info for HANSEATIC -227174)
• E message when setting memory.
• Horizontal line. at top. (picture attached)
• Slow start-up.
• Switches to standby. intermittently. (+ extract of circuit diagram)
• Transient lines in picture.
• Starts up with only half a picture. Flyback lines on top of screen. (picture attached)
• Difficult to start up. Then half a picture appears on screen with flyback lines. (+ extract of circuit diagram)
• Line focus adjustment. (with circuit diagram extract)
• PSU fails.
• Black vertical beads in AV mode. Intermittently no picture content. (+ extract of circuit diagram) (service info for HANSEATIC -227174)
• Vertical collapse. (picture attached)
• Excessive vertical size.
• Horizontal foldover. Switches to standby. after a few seconds.
• Starts briefly. Mostly with sound but dark picture. (+ extract of circuit diagram)
• No function. Transistor PSU defective. (picture attached)
• No colour. (+ extract of circuit diagram) (service info for HANSEATIC -227174)
• Unstable picture. No colour. intermittently. (extract of circuit diagram attached)
• Service menu adjustment.
• Mains fuse SI60001 blown. (picture attached)
• Switches to standby. after a few minutes. (picture attached)
• Tripping. (extract of circuit diagram attached)
• Setting the decoder (RGB injection in the HF mode).
• Can not be switched on intermittently (especially at low room temperature).
• Vertical streaks.
• Replacement of IC UC3843 or UC3843N. (picture attached)
• No auto programming. (+ extract of circuit diagram)
• No operating voltage at line output transistor.
• Disable child lock.
• No HT control. (with circuit diagram extract)
• Failure of vertical end stage IC (TDA8356). (part of circuit diagram displayed)
• Bright raster. Flyback lines. intermittently.
• Enable Hotel mode.
• No start with mains switch. (part of circuit diagram displayed)
• IR data programmer adjustment.
• Enter service mode.
• Lines are pulled down on top. (part of circuit diagram displayed)
• Dark screen, also through SCART socket. Teletext is OK. (extract of circuit diagram attached)
• How to enter tuning mode.
• No vertical deflection. (+ extract of circuit diagram)
• +A voltage adjustment. (extract of circuit diagram attached)
• Only mix mode in TXT.
• Occasionally no switch on with power supply switch. (especially not with low room temperatures). (extract of circuit diagram attached)
• Switches off by itself. depending on picture content.
• Volume is max, brightness, contrast and colour min after switch on. (extract of circuit diagram attached)
• +A not adjustable. (extract of circuit diagram attached)
• Setting the optimal values.
• Adjusting the status display.
• White lines on upper picture edge. (+ extract of circuit diagram) (HANSEATIC - 227174 information)
• Twitching hum in picture on band I, only when cold. (with circuit diagram extract)
• Focus adjustment.
• PB of the connected IR headphones fails after switch on of the TV for approx. 1 min. Passively working headphones are ok. (part of circuit diagram displayed)
• +A too high.
• Adjusting the OSD position.
• Picture is intermittently dark grey. OSD is ok when fault occurs, no text. No picture content. Not heat-, cold- or knock sensitive (part of circuit diagram displayed)
• Crackling of the sound when cold for the first 5 mins and horizontal lines on screen to the limit of sync tearing. (extract of circuit diagram attached)
• No text blanking.
• PSU transistor T60020 (BUZ90) fails after 1 sec (+ extract of circuit diagram)
• Power transistor and resistor R60021 blow.
• AGC adjustment. (+ extract of circuit diagram)
• No start-up (intermittently). (+ extract of circuit diagram)
• No teletext, menu cannot be activated. (extract of circuit diagram attached)
• Coloured lines. on upper half screen.
• Appliance starts up for a short while. Sound is mostly OK but picture is dark. After approx. 1 second appliance falls back to standby and the it can be started up again. Sometimes a white picture appears at start up (no content) from the top to approx. 1 (extract of circuit diagram attached)
• Storing the analogue values.
• Excessive brightness. Flyback lines. (+ extract of circuit diagram)
• No REC.
• Switches to standby. after a few hours.
• No channel storing.
• No functions. (extract of circuit diagram attached)
• Calling up the AFC recovery "ON/OFF".
• Chopper MOSFET IRFBC40 fails. (picture attached)
• Pulsates. Middle of screen is out of focus.
• No raster.
• Dead. (picture attached) (227174 HANSEATIC repair tip)
• Red picture. Flyback lines.
• Reduced horizontal size. (part of circuit diagram displayed)
• No picture. on the right.
• Switches to standby (intermittently). (picture attached)
• Calling up SERVICE mode at HOTEL mode ON. (HANSEATIC - 227174 information)
• Picture width varies depending on beam current charge. (with circuit diagram extract)
• Blows fuse. (picture attached)
• Failure of transistor T21501 (PBF259RS). (+ extract of circuit diagram) (227174 tips)
• 50Hz or 60Hz switchover in AV mode.
• Setting the decoder mode.
• Usys approx. 8V.
• Vertical fault. (part of circuit diagram displayed)
• Horizontal collapse.
• No luminance.
• Protective circuit starts up if picture content suddenly changes. (+ extract of circuit diagram)
• Screen grid voltage adjustment.
• No picture. via tuner. (227174 tip from HANSEATIC)
• Value of resistor R60022. (extract of circuit diagram attached)
• No functions. LED lit. .
• How to activate/de-activate ECO switch.
• No TXT. intermittently. Blank raster. intermittently.
• "E"appears on OSD instead "OK".
• Starts, stops after a short time and starts again. No picture. No sound. Mains switch comes out.
• After approx one hour, approx 1cm horizontal lines appear on screen then picture becomes blurred and appliance switches to standby.
• OSD runs vertically when cold but also intermittently in operation mode. Switches to standby. (extract of circuit diagram attached)
• Line BU doesn't oscillate. (picture attached) (227174 tip from HANSEATIC)
• Failure of: chopper FET, bridge rectifier and diodes D60023 and D60024. Occasionally IC also fails. (picture attached)
• Adjusting the max. program no.
• Wrong display in stand by mode after changing processor.
• White balance adjustment.
• T21501 fails.
• Calling up the contrast control. (service info for HANSEATIC -227174)
• BUZ90 and two safety diodes D60029 and 30 (BYT54M) are defective. PSU only pulses (picture attached)
• RGB output stage or video text functions fail.