11AK12 / FIRSTLINE [TV (chassis)]

• Trips (intermittently).
• Horizontal black lines in the top half of the screen.
• No picture. after a few hours.
• No colour.
• Vertical foldover at top.
• Excessive horizontal size. E/W fault.
• No start-up. (part of circuit diagram displayed)
• PSU S/C.
• No picture. No OSD.
• No audio. No picture.
• Not storing channels or analog levels, will store on channel 1, but all data is in other locations also. No TXT or NICAM.
• PSU pulsates.
• No functions.
• Low general saturation level.
• Intermittently picture drops out, then TXT appears and drops out again.
• No tuning. (FIRSTLINE - 11AK12 information)
• Vertical jitter.
• Low gain noisy picture, AGC preset works, but not setting properly.
• No audio. Pulsing in speaker.
• No frame scanning and horizontal bar.
• One colour missing, after CRT flashover.
• Top severely cramped (bottom reasonable).
• Line pairing at top, linearity pulled out.
• Black lines on frame with noisy frame drive. (11AK12 FIRSTLINE repair tip)
• Picture jitters vertically and horizontally depending on the picture content.
• Pincushion distortion.
• Bottom cramped (varying lower linearity).
• Nicam and signal conditioning chips.
• Black frame around picture.
• No output, start-up voltage pulsing, low drive to Buz90.
• Shows time-out clock and will not stop search tuning. (FIRSTLINE - 11AK12 information)
• No picture. Raster OK .
• Bottom severely cramped. (No linear control). (11AK12 tips)
• Stuck in standby, comes out, but immediately goes back to standby. LED flashes and sound may motorboat.
• Bright coloured raster, one colour.
• Lines in picture.
• Not stopping on sweep tune. (FIRSTLINE - 11AK12 information)
• No RC functions.
• No vertical deflection. (service info for FIRSTLINE -11AK12)
• No TXT.
• One colour missing. (service info for FIRSTLINE -11AK12)
• Frame cramped, foldover bright at centre and curving in from horizontal edges.
• Vertical bar.
• Green flyback lines.
• Power supply tripping, no raster maybe motorboating in speaker.
• Screen grid voltage adjustment.
• Not stopping on sweep tune. Identification not switching.
• Goes to standby after a short period. Removing NICAM PCB stops effect, but no TXT.
• Vertical fault.
• Tripping slowly. HT output but tripping. (11AK12 FIRSTLINE repair tip)
• Vertical collapse.
• Apparent arcing noise from speaker.
• Vertical line.
• No or poor picture. Audio OK .
• Tripping.
• Nearly full frame collapse, picture could be bouncing.
• Dead. (service info for FIRSTLINE -11AK12)
• Stuck in standby. Standby LED lit .
• Low or varying brightness.
• Video, audio I.F.
• Picture too big. E/W fault.
• No signal on audio output.
• Microcontroller.
• Not coming out of AV.
• Low output.
• Vertical size varies.
• Almost complete frame collapse.
• Shuts down (intermittently). (11AK12 FIRSTLINE repair tip)
• Goes back to standby, after approx 5 secs, LED turns green and goes out slowly.
• Distorted audio.
• Horizontal lines on still picture.
• BUZ90 becomes very hot (approx 35°C is normal) and power consumption is approx. 600mA (approx. 400mA is normal).
• Stuck in standby.
• Audio stages.
• Picture shift upward. (No linearity change). (service info for FIRSTLINE -11AK12)
• Constricted picture in upper third. It improves if appliance runs for several minutes.
• Foldover at top/bottom cramped.
• One colour missing or excessive.
• No output, no start-up voltage on pin 6.
• One OSD colour missing.
• No video, OSD OK, stuck in AV mode.
• Display shows all channels locked. (11AK12 tips)
• Blank raster.
• Nearly full frame collapse, approx 1 inch scan but shifted upwards above centre line.
• Display shows locked.
• Problem in PSU.
• No audio (intermittently).
• No raster.
• No or poor sync.
• No menu functions.
• Switches off by itself.