LG 60PZ550 Main Board repair

[anyoneone]

What is needed to repair main board with problems with no picture but has sound?

[sordids999]

Re: LG 60PZ550 Main Board repair

if im correct yours is a plasma so i would upload pictures first of the back of the tv showing all parts because it may not be the main board at fault unless you have already done test patterns to determine the main is at fault ?

[anyoneone]

Re: LG 60PZ550 Main Board repair

if im correct yours is a plasma so i would upload pictures first of the back of the tv showing all parts because it may not be the main board at fault unless you have already done test patterns to determine the main is at fault ?

In a darkened room does the panel glow?

Yes, In a dark room the screen glow.

Is the Y-sustain producing a slight humming noise?

Yes, there's a slight humming.

Is there an LED blinking on the control board?

Yes, it's blinking

Did you try the test pattern jumper on the control board?

Yes, and the screen flashes different colors.

[dick_barton]

Re: LG 60PZ550 Main Board repair

Normally if it passes the test pattern test then it does look like a main board fault and possibly a BGA problem. Can you reflow the main board or know anyone who can carry this out.

[anyoneone]

Re: LG 60PZ550 Main Board repair

Normally if it passes the test pattern test then it does look like a main board fault and possibly a BGA problem. Can you reflow the main board or know anyone who can carry this out.

Yes I can reflow the main board, from the picture can you you tell me which chip need to be reflow?

[dick_barton]

Re: LG 60PZ550 Main Board repair

It's probably one of the large chips under the black heatsink. What's the part number on IC1500

[anyoneone]

Re: LG 60PZ550 Main Board repair

The part number on IC1500 is:

LG Electronic
LG8300
111
PAN152.00E

[dick_barton]

Re: LG 60PZ550 Main Board repair

I can't find anything under that number so I can't identify the IC, sorry.