DTV6335 / FIRSTLINE [TV]

• Reduced vertical size.
• Geometry adjustment.
• Stuck in standby.
• Slight E/W fault, appliance switches off after a short time. Then loud chirping in Stand-by mode.
• Black adjustment.
• Horizontal band in picture, sound OK.
• Lines have shifted by approx 2mm each line.
• Squealing noise. Full brightness on the picture.
• PSU fails every few days. IC201, R216 and T201 are then defective.
• Focus adjustment.
• Occasionally goes to standby. Then can be switched on again.
• Line tearing similar to "mouse teeth" on the picture.
• Red striations on the picture. (service info for FIRSTLINE -DTV6335)
• Picture is displaced to the bottom of the screen. Fault recedes when appliance warms up.
• Screen has unstable coloured bars. Picture is perfect via scart.
• No audio and video IF.
• Picture too small.
• Shuts down (intermittently).
• Grey picture with flyback lines.
• Memory command is acknowledged but not carried out. Transmitter symbol can be written but not stored.
• Remains in standby, starts up only for a fraction of a sec then goes into standby again.
• Top half of the picture is ok, but the bottom half is bent with a white line in the centre.
• Vertically reduced picture.
• Value of resistor R15.
• Switches off by itself (after a while).
• T2 in the vertical stage comes flying out after approx 30 mins. IC1 and C5 already replaced in this stage.
• Important problem in PSU.
• How to access control SERVICE mode to correct height and East/West. (DTV6335 FIRSTLINE repair tip)
• Horizontal centre adjustment.
• No start up, line BU ok. No standby light on, TEA2164 changed, fuse ok, power supply pin 2 TEA2164 ok.
• Switches off by itself. after a few seconds.
• Spare part info: type of power supply transistor.
• Enter service mode.
• Yellow screen with flyback lines. Hardly visible picture. Sound OK on all channels.
• IC1 (TEA2164) is defective.
• White adjustment.
• TEA2164 is burnt.
• Reduced horizontal size.
• Switches off by itself.
• Picture varies in brightness and is very dark. Picture gets lighter if contrast turned down.
• Occasionally picture reappears after switching off with the RCU.
• Brightness and contrast adjustment.
• EHT does not start up. (DTV6335 FIRSTLINE repair tip)
• TXT and OSD displaced to the left or right.
• No sound after inserting the station table, sound only reoccurs with stereo transmissions after blanking. With mono by switching over channels.
• No functions.
• Appliance does not switch on. Standby is on. When attempting to switch on there is a short build up of high voltage. (service info for FIRSTLINE -DTV6335)
• E/W fault. (DTV6335 tip from FIRSTLINE)
• Line is folded over, it is set to the wrong standard. Does not synchronise.
• Line BU508 blows after a few minutes or after 2 or 3 hours operating.
• Colour missing (for ex. red).
• White screen. Flyback lines.
• Vertical lines.
• Top quarter of picture is dark and pulled, if appliance is cold. (service info for FIRSTLINE -DTV6335)
• Vertical centre adjustment.
• No blue.
• Line output stage transistor fails again after a short time.
• No video and audio IF.
• A colour is missing or strong striations and flags.
• Store analog values (contrast, brightness) as standard/PP values.
• Excessive horizontal size. (DTV6335 tips)
• Backing up in SERVICE mode.
• Linearity distorted on top.
• The PSU will not oscillate.
• No sound at RF reception (Multi-IF). Mostly knock sensitive.
• PSU pulsates in 50Hz cycle. (DTV6335 tips)
• Low audio. OK via SCART .
• The voltage in the vertical stage is too high (instead of 17.3V it is over 40V). It is already measurable at diode D11 (BY299). The appliance runs occasionally if you start it up for a longer time (10 mins).
• Fails. Knock sensitive.
• Picture centering adjustment.
• Linearity adjustment.
• Inverted trapezium distortion, flickering in upper half of picture. (FIRSTLINE - DTV6335 information)
• No or weak red, green or blue.
• After approx 3 hours, goes into standby. Then can be started and continues running.
• Picture is like a negative when the contrast button is pushed. (FIRSTLINE - DTV6335 information)
• Line BU destroyed when hot.
• Power supply voltages are too low and only increase slightly if the "ON" switch on the control panel is held in.
• After pressing the mains switch and finally switching on with the remote control or the button on the appliance, sometimes there is no picture and no sound. You can hear the horizontal output stage functioning.
• Poor operation of the raster time base.
• Line BU (BU508A) S/C. (DTV6335 tip from FIRSTLINE)
• Linearity fault at the top of the picture.
• No picture content with a max adjusted G2 regulator.
• No tuner reception after repairing power supply. Ok in scart. Tuner voltage ok.
• Station storage (special channels) on some channel sites are suddenly no longer possible. After pressing Memory, station drifts.
• Picture and sound OK but strong predominant green.
• No picture. No sound. The PSU oscillates. No CRT heating.
• Slightly compressed picture on right.
• No picture, T2 (BD683) gets hot. At switch on the picture up to T2 gets so hot that the 17.5V fails. Picture has then disappeared and the voltage dropped to 3V.
• No channel storing.
• Black screen. No audio. OSD OK .
• Does not start, standby ok. If you hold in place the On switch high voltage occurs and appliance hisses, after you release the switch, goes immediately to standby again.
• BU508A defective.
• At start up, blows suddenly then stops.
• No start-up.
• Blank raster and controls do not work. (service info for FIRSTLINE -DTV6335)
• No vertical deflection (intermittently).
• Line output transistor fails repeatedly.
• T1 (BU 903) in the primary power supply fails repeatedly in different circumstances.
• Horizontal size adjustment.
• Poor synchronisation. Lines in picture (when cold).
• Picture is very distorted, horizontal deflection fault; line output stage oscillates incorrectly; appliance whistles and after approx 1 min switches to stand by.
• Pin cushion.
• No standby and start up indication.
• Snow. Picture appears after 1 min. (DTV6335 tip from FIRSTLINE)
• Attempts to start via RC but switches off. Standby OK.
• E/W fault. Picture collapses.
• PSU doesn't oscillate.
• Test mode.
• Chirping. Picture at max. brightness. High voltage crackling near the deflection unit.
• 9cm horizontal picture shift on right side. Picture ok in reception via scart.
• No channels over 48. Stations cannot be stored. Some stations in memory are ok.
• Colour adjustment.
• Line output stage does not oscillate correctly.
• Line tearing in dark sections of picture, mostly at VCR PB.
• One colour missing.
• Bright picture. Flyback lines. (picture attached)
• No reception in upper channel range. Analog values and programs can not be stored.
• IC1 blows.
• Horizontal stripes in the top third of the picture. The upper linearity is limited.
• PSU does not start. No starting attempt.
• Value of T15?
• No picture. No audio.
• Wavy lines when connecting to a muli-user aerial in a block of flats. Channels which lie close together distort the reception in BIII.
• No mono sound is present, stereo sound is slightly distorted.
• No vertical deflection.
• On standby the PSU runs but after turning the set on, it only starts up for a moment and returns to standby.
• Chirping when picture is bright.
• Line transformer whistles after 15-20 mins and a short time afterwards BU fails.
• After switching on mains, appliance only ticks. (LOPT) (DTV6335 FIRSTLINE repair tip)
• Linearity at top edge of picture cannot be adjusted ie pic. is tightly compressed at the top.
• Picture is drawn in on bottom.
• When switching on the picture is dark then you can see a white horizontal line in the top half of the screen.
• When switching on, short attempt to start up. Standby LED lights up.
• Reduced horizontal deflection. (DTV6335 FIRSTLINE repair tip)
• BU508A constantly becomes defective, picture shifted to the right.
• Functions OK for a few days then picture becomes negative.
• Occasionally picture reappears after switching off with the RCU.
• Predominantly yellow. Picture and sound ok.
• Slight, distorted horizontal stripe on the picture. Line pairing visible. Hum runs through from top to bottom.
• CCU snow.
• Line BU blows after 3 hours.
• Stuck in standby. Short rustle of EHT at power on.
• In HF reception sound is defective. AV ok.
• S/C on the mains side.
• Operating voltage adjustment.
• Horizontal foldover.
• Dead.
• Vertical interference lines on the left side of the picture.
• After operating for 3 hours renewed failure of the line BU.
• The picture changes occasionally (varies).
• No raster. Sound and line transformer present.
• Factory setting for tube A 63 NCQ 00X 08
• Slight flyback lines in the top part of the picture.
• Screen is red and has no picture content. On screen function is not visible.
• No LED at start up. Low voltages.
• BU508A always fails.
• Picture cuts out after a few mins. Sound and channel change ok. Difficulties at start up if TV is switched off. (DTV6335 tip from FIRSTLINE)
• Picture is noisy and occasionally too small.
• Doesn't store or stores only after several attempts.
• No sound with mono transmissions.
• RGB adjustment in Service Mode.
• Picture has a green flyback line.
• End stageTRS T2 drop-out in vertical deflection.
• No function via the RC. Operation on appliance is ok.
• Picture shifted vertically. at top.
• No tuning.
• Spare part info: type of 1C1
• Ref of T1, value of R5 and R6?
• No CRT heating.
• Flyback lines. at top.
• BU508A in the horizontal output stage was defective. After replacing, ticking from loudspeaker, appliance does not start up.
• Ticking at switch on and the green LED may flicker.
• Power supply pulsates. Very low secondary voltages.
• No picture. Audio OK .
• Vertical amplitude, coarse, vertical amplitude, fine adjustment.
• Vertical line. at top.
• Some (high) channels can't be adjusted.
• No sound at RF (Multi-IF). (DTV6335 tip from FIRSTLINE)
• Moves from channel over channel 42. Storing channels below channel 42 OK. No storing of channels over channel 42. (DTV6335 tips)
• Green LED flickers in front panel, no EHT. (DTV6335 tips)
• Horizontal centering adjustment with teletext.
• Fine red bar at bottom of screen. It appears on side of screen when power supply pot. is used.
• How to store channels.
• No mono. Stereo OK.
• E/W Pin cushion too large and E/W pin cushion too small adjustment.
• One of the basic 3 colours is missing. (DTV6335 tip from FIRSTLINE)