7
3. Lift the upper body U to separate it from the lower body U.
4.3.
Printed Circuit Board A Unit
(P.C.B A Unit) removal
1. Remove the Control knob U and switch cover U.
2. Figure 7 illustrates the main body with the control knob U
and switch cover U removed.
3. Remove the P.C.B. AU from the P.C.B holder and discon-
nect the fast-on terminal on the lead wire connected to
the P.C.B. A Unit
Caution: Disconnect the fast-on terminal straight so
that lateral forces are not applied to the terminal fitted
to the P.C.B. AUnit.