6205VT 990541 / NORDMENDE [TV]

• Excessive brightness. (extract of circuit diagram attached)
• After completing chassis with the TXT decoder VT294 there is a bright spot approx 5cm high in the lower quarter of the screen. Remainder of the screen is dark.
• Line stage does not start up.
• No picture after 30 mins. (NORDMENDE - 6205VT information)
• Instructions how to go into the SERVICE mode.
• No image content. Image dark. (picture attached)
• Adjusting the peak white: chassis.
• Always pulsating. (+ extract of circuit diagram)
• Sound flutters or is distorted.
• Too low vertical amplitude; cannot be adjusted with VA control to nominal value. (extract of circuit diagram attached)
• Vertical line. (+ extract of circuit diagram)
• Crack in sound.
• No start-up from standby. intermittently. (6205VT tips)
• Does not come on from standby, red standby light comes on. (picture attached)
• Setting the audio trap.
• Pulsates. Buzzing sound.
• At switch on HT builds up but then BU fails.
• Starts briefly, then it switches off again. PSU pulsates.
• No colour.
• TL19 in line end stage defective. (part of circuit diagram displayed)
• Only noise on screen, screen menü cannot be superimposed. Does not react to RC or control panel commands.
• Switches off after approx 3 secs from start-up.
• No functions. Standby LED does not light. (6205VT NORDMENDE repair tip)
• The stand by led flashes up at second intervals. The appliance only functions at a reduced mains voltage.
• Adjusting the SECAM (4.25MHz) colour carrier trap: Chassis.
• Dead. (+ extract of circuit diagram)
• Adjusting the R-Y demodulator: chassis.
• PSU fails after switch on. (6205VT NORDMENDE repair tip)
• Coloured tinge in picture.
• Setting the bell filter: chassis.
• Part no. info: PSU repair kit.
• Dark picture. OSD OK .
• Vertical wave lines, especially in lower image half.
• Vertically non-linear image. Noise coming from vertical deflection board.
• Dark screen.
• Dead, standby point cannot be seen, no secondary standby voltage, no 8V voltage at collector of TP16 (BC368). (part of circuit diagram displayed)
• White alignment: picture tube board.
• Reduced vertical size.
• Dark picture. (extract of circuit diagram attached)
• Adjusting the NTSC(3.58MHz) colour carrier trap: Chassis.
• Fails after approx. 5 mins.
• Picture flickers with coloured OSD (eg from a VCR). (with circuit diagram extract)
• No direct time OSD possible.
• Exaggerated red colour with visible flyback lines.
• No TXT. (with circuit diagram extract)
• Line transistor fails immediately after switch on.
• Adjusting the deflection- and geometry values. (NORDMENDE - 6205VT information)
• Contrast average value is too high. (extract of circuit diagram attached)
• E/W fault.
• No start-up. intermittently.
• Adjusting the main voltage (Usyst. 143V): Chassis.
• Black horizontal bars in picture. TXT picture is only partially visible.
• Setting the SECAM identification: chassis.
• Appliance pumps continuously. (extract of circuit diagram attached)
• No raster. Screen lights up.
• Two hours after line transformer was replaced, appliance switches off, as soon as high voltage has built up.
• At switch on high voltage builds up. Occasionally flashovers in the picture tube or on the base. Occasionally S2000 fails. Drive and PSU are ok.
• Occasionally does not start up from standby.
• Vertical lines are distorted horizontally.E/W equalisation can not be adjusted correctly.
• Sound fizzles.
• Loud noise, if appliance is switched to standby.
• Adjusting the PAL amplitude: chassis.
• TP29 fails after switch on.
• Intermittently picture shifts with approx 2 cm on top at start-up. OK after 10 mins.
• After turning on vertical image is intermittently shifted up by approx. 2 cm; after approx. 10 minutes it returns to normal position. (part of circuit diagram displayed)
• Secondary protective switch TV01 and TV02 intermittently tripping. (extract of circuit diagram attached)
• No start-up. Standby LED lit .
• No function, high voltage builds up for a short time then switches off.
• No start-up.
• Adjustment of screen grid voltage: chassis.
• No audio. No picture. Squealing from PSU. (part of circuit diagram displayed)
• Dead. Standby LED does not light.
• Slow start-up.
• Vertical deflection error. Horizontal stripes in picture. Noise. (6205VT tips)
• Picture is OK but picture width changes at brightness change. If picture width is decreased flickering in picture.
• Crackling at switch off.
• After a few minutes screen becomes very bright and flyback lines become visible, then everything comes back to normal. Symptom keeps recurring.
• Transistors in the PSU and horizontal part fail simultaneously after 90 mins.
• Distorted image. Strong streaking effect. (extract of circuit diagram attached)
• Grey adjustment: CRT board.
• PSU does not always start after switch on via front control or RC.
• No start-up from standby with RC.
• Horizontal vawes in lower image half.