TechTopics
Issue 6, 1984: Computer 3
Model: PLUS 4
NOTE: Visual inspection is critical in this unit!
The upright position of many of the components used on the board can create problems.
It is possible for them to be shorted to the shield or to each other.
Make sure they are evenly spaced and do no contact the shield.
Areas of particularly vulnerable to this problem are:
Bottom right Corner – caps
Bottom center – J1-J6
Top Left – Ferrite Beads
Center – Twisted Caps