KN2830 / KNEISSEL [TV]

• Automatic gain control adjustment.
• Excessive horizontal size. E/W fault.
• Picture disappears after short operation time. Sound OK. Screen is dark.
• Luminance chrominance circuit adjustment.
• Switches off after approx 10 min. Standby LED goes out.
• OSD menu is shifted.
• Stuck in standby. (KN2830 tip from KNEISSEL)
• Enter service mode.
• No audio. OK via SCART .
• White balance adjustment.
• Tries to switch on then everything switches off even the LED.
• BU 508AF has or gets B-E S/C.
• No audio. Picture OK .
• Red picture with flyback lines at start-up. Picture becomes normal after few secs.
• Does not shut down.
• Dead.
• Poor picture. E/W fault. Line tearing.
• No start up. If it starts up, cannot be controlled or starts but switch transistor fails
• No vertical deflection.
• No audio. intermittently. OK via SCART .
• Shuts down (intermittently).
• Reduced vertical size.
• Audio module adjustment - Mono.
• Low brightness.
• Output levels adjustment.
• Line tearing. at top. Reduced vertical size at bottom.
• E/W circuit CI305 S/C and T302 becomes hot.
• Horizontal output transistor T302 (BU508AF) fails immediately.
• No OSD.
• G2 adjustment.
• Audio circuit adjustment - Mono.
• Poor picture. Low contrast.
• Switches on regularly then screen becomes black with three horizontal lines. No RC or manual functions accepted.
• Ground noise on sound.
• No tuning from channel 49 onwards.
• Switches to standby. after a few hours.
• No picture, only OSD. Occasionally picture appears but looses sync.
• Cuts out completely after indefinite time. Must be switched on again with mains switch.
• E/W fault.
• Black picture with TXT segments jumping on the screen.
• Dark picture. No contrast.
• Unstable OSD or picture. (service info for KNEISSEL -KN2830)
• Picture shifted horizontally. Horizontal jitter. intermittently.
• Noise in audio.
• Unstable picture. Occasionally horizontal sync flickers.
• TDA4601 fails after short time
• Geometry adjustment.
• No audio. via tuner. OK via SCART .
• How to store basic values.
• No picture. intermittently. No functions.
• White screen. after warm-up. Flyback lines. after warm-up.
• White adjustment.
• No picture. Audio OK .
• Adjusting channels.
• Delayed colour.
• East, west fault or hourglass shape.
• White frame with flyback lines. No sound.
• Very low sound with volume at maximum. Background motorboating noise.
• Does not start or starts poorly.
• No audio. OSD audio control OK.
• Audio circuit adjustment - STEREO.
• Focus adjustment.
• Slow start-up.
• Distorted audio. Volume uncontrollable.
• Stops or no functions.
• Automatic gain control adjustment.
• No audio. White screen. Flyback lines.
• No synchronisation.
• G2 adjustment.
• Incorrect syncronisms, vertical one especially.
• Unstable picture. in PIP.
• No picture. at start-up. Audio OK .
• Video intermediate frequency adjustment.
• No audio.
• Interference in picture.