ColecoVision RF Unit & Video Circuit Photos

[Ikrananka]

While recapping one of my ColecoVision's I removed the RF unit to get access to the two electrolytic caps located on the motherboard beneath it and also the one on the RF daughterboard.  I don't recall having ever seen photos of the RF unit's component side or the associated video switching circuit that is beneath the RF unit on the motherboard.  So, before I reassembled everything I took a load of photos in case they were a useful reference to anyone else.

 

I took photos from lots of angles as well as close ups of component labels.

 

CV Motherboard Rev.J

RF Unit Daughterboard Rev F

 

Note that I took the photos after I installed the new capacitors, hence the electrolytic caps in the photos are the new ones and not the originals.  They are all 10uF.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Edited June 19, 2019 by Ikrananka

[Pixelboy]

I didn't think the insides of an RF unit were so... colorful. 

[Ikrananka]

Just now, Pixelboy said:

I didn't think the insides of an RF unit were so... colorful. 

I particularly like the luminous green 8 pin riser 😀

[Pixelboy]

2 hours ago, Ikrananka said:

I particularly like the luminous green 8 pin riser 😀

 

I'll bet you a dime it glows in the dark when it heats up. 

 

[ChildOfCv]

I'm amazed at how clean it is.  Or did you put it through an ultrasonic while it was apart?

[Ikrananka]

7 hours ago, ChildOfCv said:

I'm amazed at how clean it is.  Or did you put it through an ultrasonic while it was apart?

The motherboard was a little dusty but I gave it a good clean with alcohol and it came up a treat.  The RF board was lovely and clean as it was.