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Electronics => Repair => Topic started by: Hanatsu on November 18, 2022, 02:52:30 am

Title: Rigol DS1052E "loose component"
Post by: Hanatsu on November 18, 2022, 02:52:30 am
Hi, thought I create an account here to see if anyone can help me with this weird issue.

I was moving this old Rigol scope around on the bench and heard something rattling around inside. Took it apart and found a loose component inside. It doesn't look damaged. Part number is SC566, it's a small SMD SO-8 package. I assume it's this one: ST93CS566 from manufacturer ST. Supposed to be an EEPROM.

What's this for and where is the actual component supposed to sit? I looked around for 20min and didn't find anything out the ordinary. Haven't noticed anything wrong with the scope either, could be some function that I don't use that's affected though.

Appreciate any insight.
Title: Re: Rigol DS1052E "loose component"
Post by: SMdude on November 18, 2022, 03:14:37 am
Have you owned this scope since new?
Is there any evidence of solder on the pins?

I would suspect that someone has sat this ic on top of the scope and it has fallen in through one of the vents or openings.
Title: Re: Rigol DS1052E "loose component"
Post by: Hanatsu on November 18, 2022, 03:20:05 am
Yeah. Bought it new. It was some time ago now but I believe it was inside some metal shield I found it. Can't remember it I dealt with such chip at some point either. It's nothing I got in my lab at least. Guess it's possible but hm...

Oh yeah, chip looks really clean. Could be a thin layer of solder, it's kinda glossy on the legs.
Title: Re: Rigol DS1052E "loose component"
Post by: beatman on November 18, 2022, 04:39:01 am
maybe from the factory? i have found inside on an motu 896mk3 15 years a go one more printed plastik label.is instaled  front of the unit from one side to the other to show all the parameters and was one more inside behind the front panel.😂