LG Plasma 60PK750 repair - Eay60968901 PSU

[Jbates58]

Hello all,

i have a LG plasma that is exhibiting the clicking relay symptoms.

it will fire up for about 10min when cold, then it will suddenly turn off, i will describe the sequence:

• plug in and power on from cold
• fires up and functions perfectl for 10-15min
• after 10-15 min it turns off suddenly and relays click (indicating shutdown as per normal)
• i press power on again
• standby light changes colour, relays click and then it instantly shuts down
• tv wont turn back on until its been off for a period of time (i havent yet determined the minimum)

from what i can gather, it is the power supply. but i havent found anything wrong with a visual inspection, and i have tried a few repairs mentioned online, to no avail.

all the test point voltages are spot on when the unit is functioning, so i dont think that a mis-setting is the issue.

from what i can find online there are a few "repair" kits available, and they offer these components

• IC701
• R108
• R109
• R110
• R111
• R112
• R113
• R296
• R297
• R298

i have removed each of these components from the PSU and tested them. they are also spot on, or very close to. the only thing i cant test (because i dont know how) is the IC. from what i can tell, the ic is a "F4316MSF17"

can anyone assist me in repairing my plasma? i have a multimeter and am good at soldering. but no oscilloscope to test things. hopefully i wont need one. but i have been looking at getting one, so if i have to then i will.

cheers

Jason

[Srbel]

Try changing the electrolytic capacitor next to the F4316MSF17 chip. The cap between the +V and GND pins. Usually about 10uF 50V, or something like that.