Replacement Of Control Box Assy And P.c.board - Samsung CM1329A Service Manual

3. Disassembly and Reassembly

3-6 Replacement of Control Box Assy and P.C.Board

Cover Panel
Cover-Panel/L
Parts
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 ControlBox Ass'y to the oven cavity .
3. Disconnect all the lead wires, connectors and ground taping (CM1929) from the main control
circuit board (PCB1) .
4. Lift up the FPC connector hooks about 5mm upward which connects to the main control
Control Box
circuit board(PCB1) from the tail of switch membrane of the control box assembly .(CM1929)
Assembly
5. Remove a screw securing the tapped taping to PCB1 . (CM1929)
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)
9. Unbend the metal tabs holding the Panel-Base to Control Box body .
1. Remove Control Box Assembly by following the steps1 ~ 5at left .
Main
2. Remove 4 screws securing the main P .C .Board to the bracket P .C .Board .
P .C .Board
NOTE : When handing the touch control circuitry, be most careful to avoid damage .
Explanation Photo
Digitron(PCB4)
Panel Base
Window-Display
Explaination
10
Main P.C.Board
(PCB1)
Wire Harness-C
Wire Harness-B
Wire Harness-F
PCB3
Switch-Membrane
Cover-Panel/R