1401 / TAI [TV]

• Picture snowy looks like a tuner fault.
• Tripping (intermittently).
• Tuning drifts (intermittently).
• Intermittent frame bounce.
• Horizontal shift fault.
• Low width and a dim picture, improving slowly over about an hour.
• When volume increased row of dots indicate volume still at minimum. (service info for TAI -1401)
• Infra-red receiver does not function.
• Chopper transistor TR13 S/C.
• "O" symbols with tails fill screen on TXT; bar for analogue settings flash.
• Ghosting effect.
• Field sync is missing.
• Snowy picture and field roll.
• Intermittently RCU does not function.
• No vertical deflection.
• Occasionally appliance switches off.
• Red, blue or green luminance signal is missing.
• Goes back to channel 1.
• Protection circuit trips too early.
• Field roll with a snowy picture.
• EHT missing, line timebase ok.
• Incorrect frame linearity.
• Blank raster but sound and on screen display ok.
• Reverting to channel 1.
• Field sync fault.
• LEDs not lit or only partially lit.
• Switched mode power supply trips when warm.
• Intermittently changes channel by itself. Volume varies and goes to standby.
• Picture is grainy and sound noisy.
• Height is reduced and picture foldover.
• Dark picture.
• Width is reduced and picture is faint.
• Stripes over the picture.
• EHT brushes or arcs.
• Vertical jitter.
• Intermittent loss of signals and randomly unhappy about channel three selection.
• Blank raster.
• Intermttently powers down.
• The appliance has a dark picture.
• Sound and vision (drop out, signal missing).
• Channels cannot be tuned in or stored.
• Various symptoms:- no tuning, no sound, full sound, dead set etc. (1401 TAI repair tip)
• Stuck on channel 1. No signal intermittently.
• There was a snowy raster but no sound or channel indicator illumination.
• Stuck in standby.
• Frame collapse with no sound.
• Picture has moved to one side.
• Excessive brightness. Flyback lines.
• Set does not start up.
• Reduced horizontal size.
• Poor line sync and intermittent colour.
• Reduced vertical size.
• Intermittent manual channel change.
• Channel display number does not correspond to channel.
• Vertical collapse.
• Blank raster. Audio OK .
• TXT lines.
• Displayed channel no. does not match the channel.
• Tuner only memorises stations with even numbers.
• No contrast.
• Dead or intermittently dead.
• Brightness fault. (1401 tip from TAI)
• Appliance trips when changing channel.
• Signal is intermittent.
• The output of the power supply falls slowly until the point where the field cramp becomes apparent.
• Frame synchronisation poor.
• Poor picture quality, smearing, milkiness, glistening on peak whites or insufficient brightness.
• Stops tripping if C811 PSU is disconnected.
• No colour.
• Dead.
• No audio. No picture.
• Frame oscillator does not function.
• Focus problems.
• No picture.
• Field bounce or jittering.
• The appliance is dead (tripping).
• Dead. PSU pulses.
• Channel changes at random.
• Incorrect line speed.
• Raster is blank only flyback lines present. (1401 tips)
• Field collapse, no sound.
• Vertical foldover at top and bottom.
• Unstable picture, line hold control has no effect.
• Inadequate colour identification.
• Frame collapse or intermittent frame collapse.
• Only snow, no display.
• Striations and flyback lines.
• Synchronisation is missing or intermittently missing.
• Line oscillator does not function.
• Insufficient height or the height varies.
• Intermittently dead.
• Ballooning effect.
• Outside of picture is wavy (depending on beam current).
• Blanking problems.
• Raster is green with flyback lines.
• Trips.
• Raster is blank with flyback lines.
• No raster. Sound OK. (1401 TAI repair tip)
• Appliance trips when warm.
• Field blanked from 1 to 3 inches at top of screen.
• Picture tube is not lit. (TAI - 1401 information)
• Reduced field scan with foldover.