7
R- 630DKA
R- 630DSA
R-630DWA
DOOR PANEL
1. Disconnect the power supply cord.
2. Remove the door from the oven. Refer to "DOOR
REPLACEMENT".
3. To discharge the high voltage capacitor, wait for 60
seconds.
4. The choke cover should have been removed.
5. Remove the five (5) screws holding the door panel to
the door frame.
6. Remove the two (2) screws holding the handle mounting
angle to the door panel.
7. Now, door panel is free.
HANDLE
8. Remove the two (2) screws holding the handle mounting
angle to the handle through the door frame.
9. Now, the handle is free.
LATCH HEAD AND LATCH SPRING
8. Slide the latch head and remove it from the door frame
with releasing the latch spring from the door frame and
the latch head.
9. Now, the latch head and the latch spring are free.
CPU UNIT
8. Remove the two (2) screws holding the PWB cover to
the door frame.
9. Releasing the two (2) tabs, remove the PWB cover from
the door frame.
10.Disconnect the 12-pin wire harness from the CPU unit.
11.Disconnect the ribbon cable of the key unit from the CPU
unit.
12.Remove the two (2) screws holding the LCD holder to the
door frame.
13.Remove the LCD holder from the door frame. Release
the four (4) tabs.
14.Release the LCD of the CPU unit from the LCD holder.
15.Remove the two (2) screws holding the CPU unit to the
LCD holder.
16.Remove the CPU unit from the LCD holder. Release the
four (4) tabs.
17.Now the CPU unit is free.
DOOR FRAME ASSEMBLY
18.Remove the handle from the door frame assembly.
Refer to the chapter of HANDLE.
19.Now, the door frame assembly is free.
NOTE: For 12-pin wire harness
1. When the PWB cover is reinstalled, route the 12-pin
wire harness under the hole of the PWB cover.
2. Before the door panel is reinstalled to the door frame
assembly, make sure that the 12-pin wire harness is
Figure C-10. Routing of 12-pin wire harness
NOTE: For key unit
1. Before attaching a new key unit, wipe off remaining
adhesive on the door frame surfaces completely
with a soft cloth soaked in alcohol.
2. When attaching the key unit to the door frame,
adjust the upper edge and left edge of the key unit
to the correct position of door frame.
3. Stick the key unit firmly to the door frame by
rubbing with a soft cloth so not to scratch.
NOTE: For CPU unit
Handle the CPU unit carefully so that the ribbon
cable does not come off. Because the ribbon cable
is glued onto the LCD and the printed wiring board
only by heated paste.
Figure C-11. CPU unit
INDIVIDUAL DOOR PARTS REMOVAL
Printed wiring board
of CPU unit
Liquid Crystal
Display (LCD)
Ribbon cable
PWB Cover
Tabs
Tab
Tab
12-pin wire harness
Hole on door frame
Hole on
door frame
Hole of
PWB cover
Hole on door frame
held by the four (4) tabs and the three (3) holes on
the door frame as shown in Figure C-10.
