Changhong plasma TV PT42638NHDX irregular flower screen (with red dot) common disease repair - android - Phones Developers

Brand AVX TPSE226M035R0125 Low impedance tantalum capacitor AVX 22

Electronic scale crystal oscillator 3.2*2.5mm 3225 16M (16.000MHZ) 12PF 10PPM 20PPM 30PPM

MOS power IC full range

Photocoupler

Changhong plasma TV PT42638NHDX, the phenomenon of red dot appears on the right side of the screen when it is white or bright, and there is flashing. Maintenance method: This kind of fault is more common on Samsung screen, it may be due to screen parameter problem. Adjustable VS power potentiometer during maintenance. In the upper right corner of power board, VRS801 is adjusted from 205V to 209V, then Y board is left lower. The angle of the VR5001 is adjusted counterclockwise to the bottom, and then back to the point, observing the screen, this phenomenon is gone.