Installation Instructions

Figure 1
FS-250 Main Board
U4
J2
R13
S1
U21
U2
U5
U6
J9
U12
J1
J3
Replace U4
U4
Figure 2
Display Board
GND
N
AC
B+B-
U9
To Display
Board
Replace U9
P/N 315-049463-1