I have 2 units with picture problem. (Please view attached picture) 1 working unit in good condition, 1 unit that makes buffer boards emit smoke, 1 unit with damaged buffer board due to the previous unit swap, 1 unit with half black screen but the other half is the same condition as the first 2 units. (Total 6 units)
Compare the actual picture from the laptop behind it to the clone display on the Plasma TV.
So far I have done:
1) Checked the fuses on each board, every fuse is good.
2) Checked Vs, Va, Vscan, Vramp, Vxshelf and adjusted the potentiometers according to the label using DMM to every test point specified on the board. It was a very troubleshoot-friendly board which specifies test points clearly and a dedicated space just for the test points. The only potentiometers without specified test points are Vramp up and Vramp down. Not sure how to test these two though.
3) Did screen test using MSCS software (came with TV), it will display a full screen colour for RED,GREEN, BLUE and WHITE. Judging by the results I think it has a problem to display white colour. Please view pictures below.
4) Searched for the service manual but I couldn't find any online, I guess I need to contact the manufacturer (Orion PDP Co. Ltd. from Korea) and hope they send it to me.
5) Swapped working boards (Y sustain,Main,Logic, Z sustain,Power)from a working set but stopped at Ysustain board swaps as it damaged one working TV. So now I only have one working unit and don't dare to swap to reduce losses.
This is the view of all the boards
6) I have let the TV on for 5 minutes, turned it off and touched the heatsinks on all boards. I notice all are warm except for a particular part on the Power board. That particular part comprises of two MOSFETs. I haven't tested these MOSFETs thoroughly as I got proper Va and Vs so I thought it was unnecessary.
I managed to get 2 units with the stated conditions above.
Let me describe the TV's current condition
-When turned on, LEDs blink, I can hear two clicks, fans spin and then the screen lights up (screen will be dark if there are no inputs)
- using the MCSC software I can control the TV to turn it off and on.
I haven't swapped the buffer boards as I thought it was unnecessary. I am thinking that maybe the main board is faulty so I am arranging to get spare boards from the UK. But I am still not very sure that is the source of the problem.
Any ideas or comments, anyone?
Compare the actual picture from the laptop behind it to the clone display on the Plasma TV.
So far I have done:
1) Checked the fuses on each board, every fuse is good.
2) Checked Vs, Va, Vscan, Vramp, Vxshelf and adjusted the potentiometers according to the label using DMM to every test point specified on the board. It was a very troubleshoot-friendly board which specifies test points clearly and a dedicated space just for the test points. The only potentiometers without specified test points are Vramp up and Vramp down. Not sure how to test these two though.
3) Did screen test using MSCS software (came with TV), it will display a full screen colour for RED,GREEN, BLUE and WHITE. Judging by the results I think it has a problem to display white colour. Please view pictures below.
4) Searched for the service manual but I couldn't find any online, I guess I need to contact the manufacturer (Orion PDP Co. Ltd. from Korea) and hope they send it to me.
5) Swapped working boards (Y sustain,Main,Logic, Z sustain,Power)from a working set but stopped at Ysustain board swaps as it damaged one working TV. So now I only have one working unit and don't dare to swap to reduce losses.

This is the view of all the boards
6) I have let the TV on for 5 minutes, turned it off and touched the heatsinks on all boards. I notice all are warm except for a particular part on the Power board. That particular part comprises of two MOSFETs. I haven't tested these MOSFETs thoroughly as I got proper Va and Vs so I thought it was unnecessary.
I managed to get 2 units with the stated conditions above.
Let me describe the TV's current condition
-When turned on, LEDs blink, I can hear two clicks, fans spin and then the screen lights up (screen will be dark if there are no inputs)
- using the MCSC software I can control the TV to turn it off and on.
I haven't swapped the buffer boards as I thought it was unnecessary. I am thinking that maybe the main board is faulty so I am arranging to get spare boards from the UK. But I am still not very sure that is the source of the problem.
Any ideas or comments, anyone?

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