Portable no backlit, video fades away

[Aektann]

Could you please help me to determine a problem with my original no backlit Macintosh Portable? It starts ok and displays a mouse, beginning to boot normally, but then the picture fades away. My machine was fully recaped and working well before this day. What should I check first?

 

[imactheknife]

Could you please help me to determine a problem with my original no backlit Macintosh Portable? It starts ok and displays a mouse, beginning to boot normally, but then the picture fades away. My machine was fully recaped and working well before this day. What should I check first?

Good battery? Also have to recap power adapter. I just recapped my adapter yesterday.

 

[Aektann]

Good battery? Also have to recap power adapter. I just recapped my adapter yesterday.

Yes, the battery is new and good. Power adapter is also ok

 

[Aektann]

Could it be a screen panel itself? Computer seems to be working and booting correctly

 

[3lectr1cPPC]

Can you post photos and/or a video of the behavior.

 

[GRudolf94]

I've never seen a panel fail like that. I'd check that you have 5V and contrast voltages at the display after the failure occurs. Smells like latent cap damage.

 

[Aektann]

I've figured out the reason. The ribbon cable connection the display panel and motherboard seemed to be broken a bit. Hopefully, I'll try to restore it.