Hi guys!
I’ve got a wrong TV set: Nordmende Color 3205, with F 20-11 chassis. It switched of during operation. The system voltage’s rectifier diode (DP50, BY399) was totally shorted and the filtering cap (CP51, 100u/250V) had got 480 ohms resistance. I changed them, and now the TV is working, but is not good. The horizontal line with is jumping by 1-2 cm. It seems as a random thing. It’s not depending, by the picture content or brightness. The horizontal with potentiometer seems good. I can’t found a contact or soldering failure. Everything looks good. The vertical height is stabile.
What can be wrong?
Thanks for helping.
Edmond
I’ve got a wrong TV set: Nordmende Color 3205, with F 20-11 chassis. It switched of during operation. The system voltage’s rectifier diode (DP50, BY399) was totally shorted and the filtering cap (CP51, 100u/250V) had got 480 ohms resistance. I changed them, and now the TV is working, but is not good. The horizontal line with is jumping by 1-2 cm. It seems as a random thing. It’s not depending, by the picture content or brightness. The horizontal with potentiometer seems good. I can’t found a contact or soldering failure. Everything looks good. The vertical height is stabile.
What can be wrong?
Thanks for helping.
Edmond