Heathkit IO-4205 - Page 60

Page 58
CIRCUIT BOARD CHECKOUT
Carefully inspect the circuit board for the following
conditions.
Unsoldered connections .
Poor
solder connections.
Solder
bridges between the foil patterns.
Protruding leads which could touch together.
Transistors for
proper type and installation .
( ) Electrolytic capacitors for
the correct position
of
the positive ( +) end .
( ) Diodes for
the proper type and the correct posi-
tion of the banded end .
( ) IC's for
proper type and installation .
There are a number of unused holes in the circuit
board which will be used later. Set the circuit board
aside temporarily.