3405LR / VANDA [14" monitors]

• Builds up high voltage for a short time and then immediately goes away again. It starts up unsynchronised when horizontal oscillator warms up.
• No vertical scan (frame collapse).
• No horizontal synchronisation.
• Primary mains switch transistor Q801 (2SK794) is defective.
• Horizontal line.
• Voltage at Q403 is too high.
• PSU does not function.
• Picture is too dark. Control pots fully turned up.
• Intermittently shuts down high voltage.
• No vertical synchronisation.
• No start-up.
• Picture size adjustment.
• Does not always switch on or high voltage only built up for a short time then however switches off again.
• Switching power supply - regulator adjustment (PWB1029).
• Colour spots.
• Dead. Line output stage transistor is defective. Max. picture brightness with flyback lines.
• Specifications. (3405LR VANDA repair tip)
• Synchronization adjustment.
• One colour missing.
• White balance adjustment.
• Static convergence adjustment.
• Display data position adjustment.
• No raster.
• Focus adjustment.
• Picture width twitches sporadically, sometimes picture disappears completely and appliance clicks rhythmically.
• Degaussing.
• Automatic brightness limiter not functioning.
• HV collapses after switch-on.
• No picture.
• Picture width is too small. No adjustment possible.
• Picture fails, gets dark or no picture.
• Picture is horizontally extended in the centre, and twitched on both edges (especially on the right).
• Size of picture continues to change.
• No red. White areas are slightly monochrome.
• No picture. No brightness. LED flashes after a while.
• Video amplitude abnormal.
• Too bright and flyback lines.
• Screen is bright white.
• Line does not synchronise, only sloping lines. (VANDA - 3405LR information)
• No functions.