Author Topic: Hitachi plasma intermittent ghosting (Read 5831 times)

Cornboats · « **on:** May 18, 2012,12:51:37 »

Hitachi plasma 42PD4200

I've got an intermittent picture fault. Full sharp colour picture goes to blur and ghosting for 5 seconds and then back to full colour.

I thought it was LVDS board but swopped and no difference made.

VA & VS voltages spot on.

Any ideas would be welcome.

Mulja tv repair portal · « **on:** May 18, 2012,12:51:37 »

jordan · « **Reply #1 on:** May 18, 2012,15:44:04 »

Check or change SMD electrolit capacitors on Y-SUS board C-18,C-36,C-72 all 33uF/25V

Cornboats · « **Reply #2 on:** May 19, 2012,03:57:12 »

Many thanks for replying. I check out over the weekend and let you know.

I've a lot to learn- What made you suspect these?

Mulja tv repair portal · « **Reply #2 on:** May 19, 2012,03:57:12 »

Cornboats · « **Reply #3 on:** May 21, 2012,14:01:30 »

I've checked all 3.

they are 33mf, 28mf, 102mf.

are these electrolytic?

my esr meter doesn'tseem to work on them.

Cornboats · « **Reply #4 on:** May 22, 2012,12:06:19 »

I checked the 15V rail and its only 117.-11.9V. I was told it came from the Y-sus board but not sure where to look.

Any ideas anyone?

Cornboats · « **Reply #5 on:** May 31, 2012,12:17:52 »

I changed z -sus . Got picture and sound and 15v rail. Thought "jobs a good en."

Turned on to find very dark picture highlighted in red.

I'll close this thread and open a new one with new problem.

Mulja tv repair portal · « **Reply #5 on:** May 31, 2012,12:17:52 »

Mulja tv repair portal

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