[HawgRyder]

This unit reminds me of the old "don't take the old stuff out...just wire a replacement around it" kludge.
What a mess!!
By all means...check with someone who has posted a schematic online.
Remove any components that are bad.
Definitely remove "added" parts.
Clean everything very well...check for broken traces on the bottom of the circuit board.
Run the traces if in doubt (use a hot soldering iron on the traces from one end to the other)...this will ensure that the trace is continuous.
Bob