Hardware Weird color bars on PSP-3001 screen.

[Cyberfalcon]

I have this little project of mine about getting PSP and restore it as new as much as possible. So, bought a pre-owned PSP-3001 and the previous owen told me that everything but the stick works. So I decided to open the PSP and replace the joystick then assemble it back but after powering the PSP I found a problem with the screen, there are some weird color bars on the upper area of the screen making me think that somehow the lcd got damaged, even though I did the proccess as calm and careful as possible.

So what do you think is the problem? the motherboard or the screen?

I already teardown again my PSP to check if the ribbon cables are connected properly but the problem persist. I Also, connect my PSP to my pc throught remotejoy and the problem dissapears.

So....I'm not sure what shoud I do. What else should I test?

 

[slaphappygamer]

Definitely a fault in the screen. Could be dirty connection. I don’t think it’s damage to the screen. You’d see cracking. Could be a damaged ribbon cable to the screen as well.

 

[Ryccardo]

The 3000's display uses a serial interface so it's pretty much impossible for a cable/connector problem to result in that pattern...
Looks like it's a problem with the internal row/column flat cables, not really fixable unless you disassemble the screen and try questionable (on calculators and original Game Boys, wouldn't want to imagine on a comparatively high resolution screen like this one) hairdryer and tweezers tricks... or maybe the actual controller chip (also inside the screen) has gone bad

 

[Cyberfalcon]

So...a Simple LCD swap should fix this issue?
Hopefully the problem is related to the lcd and not the Motherboard or any connector.

Here's something new I found out btw.
Any icon or text that appears on the upper area get marked but disappears within seconds. Like a water mark that dries out.