This set is a Hitachi 42pd4200 and is using LG V6 chassis.
I've replaced ipm on Z-sus board on a Hitachi 42 and have picture but wanted to confirm voltages as ipm is hot to touch after on for 5 mins and I reckon this is why the previous one burnt out.
LG info is: VSC 120V,-vy -70v,v setup 200v
set readings are: VSC 121V,-vy is 80v,v setup varies from 300-600v
You need to check the vs and va voltages. vs should be around 200 to 210 volts dc and va around 60 volts dc. Although va only controls the address boards on the bottom of the set. The IPM does get hot though. That is the reason for the heat sink. Good luck to you.
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You need to check the vs and va voltages. vs should be around 200 to 210 volts dc and va around 60 volts dc. Although va only controls the address boards on the bottom of the set. The IPM does get hot though. That is the reason for the heat sink. Good luck to you. 