7-5 Replace Front PCB
A.lift the unit front cover as illustrated below.
C.Unplug
E.Disassemble display PCB.
G.Screw the display PCB.
B.Switch off the power.
D.Remove the display PCB back cover by unscrewing
the four screws located on the display PCB back cover.
F.Replace display PCB with the new one.
H.Tighten the screws located on display PCB back cover.