348181 / OTTOVERSAND [TV]

• Appliance starts up for a short time then goes off. Also via RCU. (with circuit diagram extract)
• Corrugated picture and gargling sound to start with, then goes to normal.
• No memory store.
• No horizontal deflection.
• No picture just snow. No control or RC work.
• The picture is only a vertical line.
• Attempts to start up, but EHV leakage noise. Sound available for a moment and then PSU goes to protection mode.
• No picture for 10 mins after switch on.
• Switch on picture blanks out or goes off in standby. (extract of circuit diagram attached)
• Horizontal line on centre of screen.
• After a few minutes there are faulty characters in TXT. (extract of circuit diagram attached)
• At switch on picture blanks out, or goes off or into stand-by. (picture attached)
• Does not start up after it's turned off.
• No tuning.
• PSU pulsing.
• Central processing board cannot be reprogrammed. (348181 OTTOVERSAND repair tip)
• White screen with flyback lines. Sound OK.
• Dark picture.
• No start-up (intermittently). (with circuit diagram extract) (OTTOVERSAND - 348181 information)
• No contrast. (with circuit diagram extract)
• D904 is constantly defective. (part of circuit diagram displayed)
• Screen is white. (service info for OTTOVERSAND -348181)
• Sound disappears every few mins. (part of circuit diagram displayed)
• Cannot be tuned in or no response from RCU.
• OSD missing.
• No TXT.
• Blank white screen. (348181 tip from OTTOVERSAND)
• Intermittently centre of screen becomes covered in lines. (service info for OTTOVERSAND -348181)
• No picture or sound. OSD OK.
• Trips. (picture attached) (348181 tip from OTTOVERSAND)
• Narrow horizontal line. No voltage on ICAN5521. 56ohm resistor of the pulse supply winding and IC have been replaced. Now picture is pulled out at the top, compressed in the middle, ok at the bottom. No circuit diagram.
• Intermittently cuts-out.
• Intermittent, incorrect picture size.
• Unlinear image.
• Picture flashes. Worse when tapped.
• Snow on screen, no response from RCU and no tuning.
• Snow on screen, no RCU functions or tuning possible.
• No start up. Twitching. PSU OK.
• Waves in picture in tuner mode (thick black lines). Picture OK in SCART.
• Power supply transformer vibrates in standby mode.
• No line sync. Picture shifted to right. (with circuit diagram extract)
• Modification for power supply. (+ extract of circuit diagram)
• Inadequate NICAM. Clicking sound. (picture attached) (348181 tips)
• Chopper transistor fails. (part of circuit diagram displayed)
• Poor scanning on some channels.
• Chopper transistor Q901 (2SC3679) repeatedly fails. (with circuit diagram extract)
• Stuck in standby.
• Mains fuse demolished. (part of circuit diagram displayed) (348181 OTTOVERSAND repair tip)
• Intermittently no operation from cold and/or dead.
• Sound buzzes and picture dull. (part of circuit diagram displayed)
• Fails to start.
• No line sync. Display moved to right hand side of screen. (with circuit diagram extract)
• No picture. No audio.
• Voltage at Q702C builds up slowly until the appliance is ready after 10 mins.
• High capacitor 4N7 (472K) across power transistor becomes very hot.
• Goes to TXT then switches back to picture. (+ extract of circuit diagram)
• No teletext, page 100 only.
• Snow in picture.
• Occasionally starts up or does not start up.
• No tuning voltage at tuner.
• Reduced vertical image size.
• Picture and sound blanked for 10-15 mins.
• Fails intermittently. (picture attached)
• Comes on in standby - remote turns the set on OK. May be intermittent.
• Intermittent tripping or no start up.
• Dark screen. Audio OK .
• Black picture in TXT and TV-mode. (picture attached)
• Flyback lines in picture. (348181 tip from OTTOVERSAND)
• Does not store channels in memory.
• Black lines across screen. Intermittent field collapse. (extract of circuit diagram attached)
• Vertical collapse.
• Slow to start. (extract of circuit diagram attached)
• Loud sound and buzzing. (extract of circuit diagram attached)
• Gray raster. Line at top and bottom. Audio OK. (part of circuit diagram displayed)
• Comes on bright, then trips off.
• Slow start up from standby. If powered off from mains switch, does not start at all.
• Comes on in standby but does not come on via mains switch.
• Text clock runs on some channels or not at all.
• Cannot store stations. (+ extract of circuit diagram)
• Line output transistor fails repeatedly.
• Slow start-up.
• No picture. (blank raster).
• No HV. (extract of circuit diagram attached)
• The picture would occasionally blank out, leaving a white raster. (348181 tips)
• Poor audio.
• Picture shifted to right. No line sync. (+ extract of circuit diagram)
• Blank white raster.
• Green raster with flyback lines. (service info for OTTOVERSAND -348181)
• Tuning drifts with no tune above channel 36.