Sun Microsystem monitor, GH19PS chassis. Originally liquid damaged, but it has nothing to do with the issue at hand, the chassis was rusted but for some reason the boards are completely clean, and the panel didn't have infiltration either.
Turns on only when it wants to, and when it does it freezes after a few seconds on the no signal banner.
No bad capacitors, PSU runs fine.
So I thought it was a firmware issue, unfortunately, it was nowhere to be found. I still tried to read it nonetheless (using RT809F in VGA ISP): lots of read error, couldn't get anything meaningful.
µC was detected as NT68F63, but I didn't really have a second thought about it…
Until I removed the motherboard and took a look at it. Then I realized it was *the* infamous Novatek chip from Syncmaster series. In a PLCC socket.
It wasn't showing the same symptoms as usual though, but I gave it a little bit of heat (well… more than a little, maybe 300°C for a minute), and it fired right up. So I read the firmware again and it came out without error on the first try – attached below —.
Worked without issue afterwards, but I know it'll not last. It's good enough for now, as I don't know where to source good new NT68F63 (if it is even possible), the ones I bought previously (for Samsung monitors) from Aliexpress were obviously not new.
Turns on only when it wants to, and when it does it freezes after a few seconds on the no signal banner.
No bad capacitors, PSU runs fine.
So I thought it was a firmware issue, unfortunately, it was nowhere to be found. I still tried to read it nonetheless (using RT809F in VGA ISP): lots of read error, couldn't get anything meaningful.
µC was detected as NT68F63, but I didn't really have a second thought about it…
Until I removed the motherboard and took a look at it. Then I realized it was *the* infamous Novatek chip from Syncmaster series. In a PLCC socket.
It wasn't showing the same symptoms as usual though, but I gave it a little bit of heat (well… more than a little, maybe 300°C for a minute), and it fired right up. So I read the firmware again and it came out without error on the first try – attached below —.
Worked without issue afterwards, but I know it'll not last. It's good enough for now, as I don't know where to source good new NT68F63 (if it is even possible), the ones I bought previously (for Samsung monitors) from Aliexpress were obviously not new.
Attached Files
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