Samsung CM1629 Service Manual page 16

4-6 Replacement of Control Box Assy and P.C.Board
4-6-1 Removal of Control Box Assembly
1. Be sure to discharge any static electric charge built up on your body and avoid touching the touch control circuitry.
2. Remove 3 screws securing the Control Box Ass'y to the oven cavity.
3. Disconnect all the lead wires, connectors and ground taping from the main control circuit board (PCB1).
4. Lift up the FPC connector hooks about 5mm upward which connects to the main control circuit board(PCB1) from
the tail of switch membrane of the control box assembly.
5. Remove a screw securing the tapped taping to PCB1.
6. Remove Control Box Ass'y.
7. To replace Digitron, remove 2 screws securing the PCB4.
8. To replace Start Button Circuitry, remove 3 screws securing the PCB3
9. Unbend the metal tabs holding the Panel-Base to Control Box body.
4-6-2 Removal of main P.C.Board
1. Remove Control Box Assembly by following the steps 1~ 5 at left.
2. Remove 4 screws securing the main P.C.Board to the bracket P.C.Board.
NOTE : When handling the touch control circuitry, be most careful to avoid damage.
Cover Panel
Cover-Panel/L
Digitron(PCB4)
Panel Base
Window-Display
Control Box Ass'y
Wire Harness-C
Wire Harness-B
Switch-Membrane
Cover-Panel/R
- 14 -
Main P.C.Board
(PCB1)
Wire Harness-F
PCB3