Samsung CM1319 Service Manual page 19

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 (CM1929/1629/1329) 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.(CM1929/1629/1329)
5. Remove a screw securing the tapped taping to PCB1. (CM1929/1629/1329)
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. (CM1929/1629/1329)
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 the touch control circuitry, be most careful to avoid damage.
Control Box Ass'y
<CM1919/1619/1319>
Control Box Ass'y
<CM1929/1629/1329>
Cover-Panel/L
Wire Harness-C
Digitron(PCB4)
Panel-Base
Panel Base
Window-Display
Cover Panel
Main P.C.Board (PCB1)
Wire
Harness-B
Wire Harness-D
Button-Select
Button-Start
Wire Harness-C
Digitron(PCB4)
Wire Harness-B
Switch-Membrane
Cover-Panel/R
PCB2
Main P.C.Board
(PCB1)
Wire Harness-F
PCB3