Samsung CM1019 Service Manual page 17

Disassembly and Reassembly
4-6 Replacement of Control Box AssÕy 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
AssÕy to the oven cavity.
3. Disconnect all the lead wires, connectors and
ground taping (CM1029) 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.
(CM1029)
5. Remove a screw securing the tapped taping to
PCB1. (CM1029)
Digitron(PCB4)
Panel-Base
Control Box AssÕy
(CM1019)
Cover-Panel/L
16
Wire Harness-B
Wire Harness-C
Panel Base
Window-Display
Cover Panel
Control Box AssÕy
(CM1029)
6. Remove Control Box AssÕy.
7. To replace Digitron, remove 2 screws securing
the PCB4.
8. To replace Start Button Circuitry, remove 3
screws securing the PCB3. (CM1029)
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 PCBoard
to the bracket PCBoard.
NOTE: When handling the the touch control
circuitry, be most careful to avoid damage.
Main P.C.Board (PCB1)
Wire Harness-D
PCB2
Button-Select
Button-Start
Digitron(PCB4)
Switch-Membrane
Cover-Panel/R
Wire Harness-C
Wire Harness-B
Wire Harness-F
Samsung Electronics
Main P.C.Board
(PCB1)
PCB3