Plasma LG-PDP42V7 screen Y board fault repair - Home Appliances

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

0603 Blu-ray factory direct sales

1, black screen,
Check IMP.IC13.D13.IC20.
2, flashing.
Check the 120V voltage.
3, Huaping.
Measure the resistance, the waveform at R23.R24.R21.R22, and determine if there is a problem with the Y/Ctrl board.
4. Bad judgment of IPM.
The red pen is connected to the sus-up-out, and the black pen is connected to the VS voltage output. The measured resistance is 0.38 ohms.
5, Y board whistling.
Check capacitor C25-C40.
6, boot protection.
Check the field effect transistor Q3-Q11 [as long as there is a bad can cause boot protection].
7, screen flash.
Poor VSC, there is a problem with the 15V power supply of the MOSFET. Check the IC22.Q9.IC101 and IC102.
8, flower screen / protection.
-Vy is bad,
9. Black screen / light dark.
No VS.VA voltage, [if D9.D10 is bad, check IC12.IC303.Q102 at the same time].