Namingway_PL wrote:Shimmering pixels:
https://youtu.be/ADEIkVQ9xv8
This is most visible in the edges of the letters when the menu is displayed. It's less visible while gaming, but still noticible. My monitor has 26k hours on it, so it might be warn out :/ The colours look good though.
thanks for the youtube clip. i had a different issue with a lot of black and blue spots showing up on the screen and pink sparkles which i was able to resolve adjusting a few voltage pots.
if you have a cheap digital multimeter: check your panel sticker indicating panel voltages that's located right on top of the power supply when you open up the TV. It'll give the proper voltages values the panel was set from the factory. These voltages are essential for plasma picture. Later generation plasma panels as they age have self adjusting voltages. Because this is a first generation plasma panel, as this panel ages, the voltages settings will drift away from values set at factory and may lead to picture issues and you may have to manually adjust them to correct picture issues that may crop up. i'm not an expert and this may not be helpful for your case but you should definitely check out Bad caps forums as well. they will be able to answer more specifically if it's unresolvable due to aging or can be adjusted out. I had a few pixels flickering, not as pronounced as your issue, but i was able to adjust out the minor flickering pixels through the voltage pots.
Here's a very simple tutorial to check the voltages on any plasma
https://youtu.be/HMUCNsXkojU
here's my sticker with the factory voltage numbers
it was kinda hard to read it took 45 mins to make out the faded numbers:
for the 1st gen panels of the v402, each will have different voltage factory settings specific per panel labeled but generally close enough to each other. here's my values in case anyone tries to look inside their v402 panel and the factory voltage settings sticker is missing/eligible:
Vsus 173
VoFs 140
Vrst 185
Vh 160
Vcsp 37
Vadr 60
if you open up the v402 panel: facing the back of the TV:
X drive boards are on the left
Y drive boards are on the right
power supply main board is in the center at the top with the voltage sticker right at the top.
the pots i needed to adjust were 3.
VRN (minus reset power supply voltage)
VH (scan IC power supply voltage)
VOFS (offset power supply voltage)
i circled in RED the pots adjusted in the pics.
VRN pot on the X-drive board:
Vh pot on the y-drive:
VoFs pot on the main power supply: