Page 279 - CITS - Electrician - Trade Practical
P. 279
ELECTRICIAN - CITS
9 Retouch all the points with fresh solder.
10 Check whether any capacitor cracked in the PCB (Fig 2). If so remove it from the PCB with the help of tile
cutter (Fig 4) .
11 Check the electrolytic capacitors on the board and replace with a new one if they are found at the brim.
12 Press the switches on the control board and if they show resistance, it may be due to improper contact.
13 Replace all the Press-to-on button switches.
If buttons are slightly longer than the one on the board, nip the extra length with tile cutter tool
14 Defective switche is shown below (Fig 5)
15 After completing the work put the PCB and other parts back into the cabinet, (Fig 3). Fig 6 shows the cook top
of induction heater.
16 Test the appliances with supply for its working.
262
CITS : Power - Electrician & Wireman - Exercise 101
