T20 / RANK [TV]

• When first switched on picture poor for first few minutes.
• Channel indicator is stuck on 0. (T20 RANK repair tip)
• Set switches on OK from cold, but if switched off and then on again within approx five minutes does not come on.
• Pale raster and critical defocusing.
• Height almost doubled.
• Intermittent height.
• Excessive horizontal size.
• Intermittent colour.
• Tripping.
• Reduced vertical size.
• Vertical collapse (intermittently).
• Line output stage dead.
• Tripping and ballooning.
• Intermittent colour or weak colour.
• Set dead, BU208A line output transistor S/C.
• Back ground drone.
• BU326 chopper transistor 7VT2 is S/C.
• No start-up. intermittently (when cold). (T20 RANK repair tip)
• Vertical collapse.
• Dies when warm.
• Dead.
• Poor E/W bowing with excessive width.
• No audio.
• Excessive brightness. Flyback lines. (T20 tip from RANK)
• No picture. Sound OK.
• Intermittent field scan reduction.
• Tripping (intermittently). (T20 tip from RANK)
• Intermittently dead.
• Sound but no raster.
• Excessive vertical size.
• Rush of sound then set goes dead.
• No start-up.
• Occasionally picture cuts out.
• Replacing the tripler. (T20 tip from RANK)
• Width is reduced. (T20 RANK repair tip)
• Fuse blown.
• E/W fault.
• Power supply pulsating also picture can be pulsating from the sides.
• Small frame.
• Field scan is intermittent.
• Reduced vertical scan.
• 1.6A fuse blows intermittently.
• Squealing from PSU.
• No colour top shaded.
• No colour.
• Ringing on the left hand side of screen. (T20 RANK repair tip)