User`s manual
61
 8.16 Replacing the Input switch 
8.16.1  Removing the Input Switch
• Execute the Steps in "8.2.1.1 Power Off:".
• Execute the steps in "8.2.1.3 Base Unit Cover removal:".
• Disconnect the “Live(Blue) and Neutral(Black) wires(Ring termi-
nals) of switch” from the terminal block fixed on the power board 
clamp using phillips screw driver as shown in Figure 119 .
• If required disconnect the GND(ring terminal) wire from the GND 
terminal on power board plate located just below the switch 
by removing the M3X6 HSHC screw using 2.5mm allen key as 
shown in the Figure 119 .
• Remove the power board clamp from the base unit by removing 1 
M3X6 HSHC Screw on top side of the power board using 2.5mm 
allen key and 2 M3X8 HSHC screws, plain washers and Jam nuts 
(screws will be inserted from rear side and nut with washer to 
be fixed from front side) using 2.5mm allen key and 5.5mm nut 
driver at the locations shown in Figure 119 .
Figure 119 
Figure 120 
Figure 121 
• Disconnect the wires(Pin terminals) from the J5 connector on the power board using a Jewel screw 
driver as shown in Figure 120 (Live=Blue & Neutral=Black).
• Pull out defective switch from the base unit rear cover as shown in Figure 121 .
8.16.2  Replacing the Input switch
• Take the new switch and fix it in the base unit rear cover by inserting from outside as shown in Figure 
121 .
• Connect the switch wires(Pin terminals) to the J5 connector on the power board using a Jewel screw 
driver as shown in Figure 120 (Live=Blue & Neutral=Black).
• Fix the power board clamp from the base unit by fixing 1 M3X6 HSHC Screw on top side of the power 
board using 2.5mm allen key and 2 M3X8 HSHC screws, plain washers and Jam nuts (screws to be 
inserted from bottom rear side and nut with washer to be fixed from front side) using 2.5mm allen key 
and 5.5mm nut driver at the locations shown in Figure 119 .
• Connect the GND(ring terminal) wire to the GND terminal along with the other GND wire(If removed) 
on power board plate located just below the switch by fixing the M3X6 HSHC screw using 2.5 mm al-
len key as shown in the Figure 119 .










