CT2501 / KITON [TV]

• Low pulsing power.
• Blank screen. intermittently. (CT2501 tip from KITON)
• Low general saturation level - CRT base.
• Low brightness.
• Relay trips.
• Black lines on frame with noisy frame drive.
• Intermittent standby.
• Chopper FET Q801 blown.
• Bright coloured raster, one colour.
• PSU pulsates.
• Field shifts up.
• TXT.
• Enter service mode.
• No E/W correction.
• One channel missing, probably NICAM.
• Blank screen. after a while.
• Not coming out of AV. Software switches, but line to IC401 stays high.
• Picture pumps when warm or when switch channels. (CT2501 tip from KITON)
• Partial field collapse.
• Too much of one colour, drive control makes CRT saturate in that colour.
• HI one colour.
• Reduced vertical size at bottom.
• Video, audio I.F.
• Snow in picture.
• Horizontal lines on still picture.
• Goes to standby after a short period. Removing NICAM PCB stops effect, but no TXT.
• Flyback lines.
• No RC functions.
• No menu functions.
• No video. Stuck in AV. OSD OK.
• Power supply. (service info for KITON -CT2501)
• One colour missing.
• IF jungle.
• Fuse F801 in PSU blown.
• Reduced vertical size. Poor linearity. on upper half screen.
• No red.
• Erratic operation. Intermittently switches to standby. Corrupt OSD.
• Picture shifted upwards, no change in linearity.
• Frame cramped, foldover bright at centre and curving in from horizontal edges.
• No functions.
• Trips.
• Bottom cramped (varying lower linearity).
• Reduced vertical size at top.
• CRT base, auto greyscale.
• Middle field cramped.
• Takes time for picture to come on.
• Intermittent or no colour. (KITON - CT2501 information)
• PSU transistor fails after start-up.
• No colour.
• Dead. after lightning strike.
• No audio. No picture. Standby LED lit .
• No picture (intermittently).
• Transistor Q801 is S/C. IC801 defective.
• Display shows all channels locked. (CT2501 KITON repair tip)
• Top severely cramped (bottom reasonable).
• No line drive.
• One colour missing or excessive.
• Programs are LOCKED.
• Microcontroller.
• Shows time-out clock and will not stop search tuning.
• No TXT.
• Low level mono sound, NICAM OK.
• Stuck in standby.
• TV switches off after a short time. LED display is red or completely off.
• Mains input fuse blows (OF1).
• No picture, only OSD (green). Audio OK.
• Top stretched. Line pairing.
• Lines in picture. in the centre.
• First anode supply low.
• Picture comes in only after 20 mins after start-up and it's dim.
• Noisy picture. Low gain.
• Searches for channels continuously.
• Low or varying brightness.
• No picture. No OSD.
• Nicam and signal conditioning chips.
• Only 1" field scan in centre of screen.
• Grainy picture.
• Excessive red.
• Goes to standby when VOL +/- is selected. Otherwise OK.
• Vertical foldover at top.
• Apparent arcing noise from speaker.
• Bright horizontal bar.
• Horizontal line. at top.
• Vertical size varies. intermittently.
• Vertical jitter.
• Excessive blue.
• Slow tripping with HT. (CT2501 tips)
• NICAM/ZWEITON.
• PSU pulsates and makes noises in standby.
• Goes back to standby, after approx 5 secs, LED turns green and goes out slowly.
• Distorted audio.
• One colour missing, after CRT flashover.
• No green.
• No blue.
• Reduced horizontal size. at top.
• Doubled image and picture oscillates. Vertical and horizontal lines in picture.
• Varying heights.
• No RC. Volume turned off.
• Mains FET fails again immediately.
• Slow tripping without HT, (CT2501 tip from KITON)
• Tuning locks then shutsdown. (KITON - CT2501 information)
• Line pairing at top, linearity pulled out.
• Stuck in standby, comes out, but immediately goes back to standby. LED flashes and sound may motorboat.
• Vertical line. on upper half screen.
• Picture shifted vertically. at top.
• Vertical size varies.
• Vertical collapse.
• Synchronisation problems in TXT.
• Defective BUZ77B. (CT2501 tips)
• Bright picture. Flyback lines. No vertical deflection (intermittently).
• Customer has forgotten the PIN code and install menu is locked.
• Stuck in standby. Standby LED lit .
• Standby warm.
• No picture or very dark.
• Field middle cramped. (CT2501 tip from KITON)
• Pumping noises from the loudspeaker at switch on from standby.
• No vertical deflection.
• Vertical collapse. at bottom.
• Vertical line visible in left third of screen especially with dark pictures. (CT2501 tips)
• BUZ in PSU fails immediately after start-up.
• No picture. after warm-up.
• Excessive green.
• Power supply tripping, no raster maybe motorboating in speaker.
• Black screen.
• PSU error.
• No audio (intermittently).
• Stuck in standby. LED blinks .
• Does not store channels or analog levels. Will store on Channel 1, but all data is also on other channels. No TXT or NICAM.
• Dead.
• One OSD colour missing. After CRT flash over.
• Poor or no sync. If line locks, no frame sync.
• Low output, HT 83V.
• Dead. Smoking.
• Display show locked. When unlocking, lock can change, when addressing. Not toggling.
• Low gain noisy picture, AGC preset works, but not setting properly.
• Protection mode activated.
• No video, OSD OK, stuck in AV mode.
• Power supply transistor blows immediately at switch on.
• Foldover at top/bottom cramped.
• No picture.
• Tripping.
• Tilted interferences. Lines in picture via tuner and AV, depending on brightness. (CT2501 tip from KITON)
• Q801 defective.
• Audio stages.
• No audio. Pulsing in speaker.
• Poor power supply. Appliance remains in standby. (KITON - CT2501 information)
• PSU fails.
• No luminance. intermittently.
• Vertical fault. on upper half screen.
• No tuning.
• Display locked.
• Transformer TR801 and fuse F801 fail repeatedly.