SE/30 ROM Socket Question

[smrieck511]

I found something suspicious in my ROM socket (see photo). the board chimes and boots fine but I get no video at all - total blackout. I've been going through potential issues in the video circuit. Is it possible that this is the cause?

 

[Fred1212]

Likely

 

[bibilit]

Or the LS166 bad

 

[obsolete]

I think you may have gotten very lucky here. That appears to be pin 30, which is a ground. There are two other grounds on the connector, on pins 10 and 64. 30 and 64 are tied together, at least on the factory SIMM that I tested, so as long as pin 64 is good, you should be fine without pin 30.

 

[smrieck511]

I think you may have gotten very lucky here. That appears to be pin 30, which is a ground. There are two other grounds on the connector, on pins 10 and 64. 30 and 64 are tied together, at least on the factory SIMM that I tested, so as long as pin 64 is good, you should be fine without pin 30.

Thanks for the info. Yeah it appears to boot fine...just the video issue of course.

 

[tjempeng]

Have you checked the soldering on the Analog board ?

 

[smrieck511]

Yep its good now. Replaced the UE8 chip.