Hi,
Here’s an automatic download link to the [http://atariage.com/forums/index.php?app=core&module=attach§ion=attach&attach_id=380734|service manual] for your Intellivision (I think that this is for your model - apologies if it is not.)
On p.2-7 you’ll find a schematic showing the test points for the various supply voltages and their values.
On p.7-2 you’ll find a schematic of the power board showing the values of the components.
Hopefully this is of some help.