LG LMV1645xx Service Manual
7-4
DISASSEMBLY INSTRUCTIONS
IMPORTANT NOTES:
UNIT MUST BE DISCONNECTED FROM ELECTRICAL OUTLET WHEN MAKING REPAIRS, REPLACEMENTS, ADJUSTMENTS AND CONTINUITY CHECKS.
WHEN RECONNECTING THE WIRE LEADS TO
ANY PART, MAKE SURE THE WIRING CONNECTIONS AND LEAD COLORS ARE CORRECTLY
MATCHED ACCORDING TO THE OVERALL CIRCUIT DIAGRAM. (ESPECIALLY SWITCHES AND
HIGH VOLTAGE CIRCUIT.)
A. REMOVING POWER AND CONTROL
CIRCUIT BOARD (Figures 1, 2 and 3)
(1) Remove a screw securing the control panel
assembly to the oven cavity.
(2) Remove the control panel with pushing it upward.
(3) Remove the connectors (CN1, CN3) and wire
leads (RY7) from the circuit board.
(4) Remove 5 screws securing the circuit board.
Power Transformer
Control Panel
Screw
Circuit Board
(RY7)
(CN3)
(CN1)
Circuit Board
Control Bracket
Circuit Board
FPC Connector(S1)
(5) Remove the FPC connector from the terminal
socket following “HOW TO REMOVE THE FPC
CONNECTOR” on the next page.
(6) Remove the circuit board from the control bracket
carefully.
Figure 1
Figure 2
Figure 3
7-5
HOW TO REMOVE THE F.P.C. CONNECTOR
Follow the steps below as illustrated in Figures 4
and 5 to remove the F.P.C. connector.
(1) Hold the edges of the plastic fastener with
thumb and forefinger.
(Figure 4)
(2) Lift up the lever of the plastic fastener from
the terminal socket by lightly pressing the
lever end with forefinger.
(Figure 5)
(3) Remove the F.P.C. connector from the
terminal socket.
HOW TO INSERT THE F.P.C. CONNECTOR
Follow the steps below as illustrated in Figures 6
and 7 to insert the F.P.C. connector.
(1) Insert the F.P.C. connector into the terminal
socket securely with the fingers.
(2) Hold the plastic fastener with thumb and
forefinger of the other hand, and push it
slowly into the terminal socket. (Figure 6)
NOTE: When reconnecting the F.P.C.
connector make sure that the holes
on the F.P.C. connector are properly
engaged with the hooks on the plastic
fastener
(3) Lock the level of the plastic fastener into the
hook of the terminal socket securely by
releasing the fingers.
(Figure 7)
Figure 4
Figure 6
Figure 7
Figure 5
F.P.C.
Connector
Terminal
socket
Plastic
fastener
Holes
Hook
Plastic fastener
Terminal
socket
F.P.C.
Connector
Plastic
fastener
Terminal
socket
F.P.C.
Connector
Terminal
socket
Plastic fastener
Holes
Hook
7-6
B. REMOVING THE OUT CASE(Figure 8)
(1) Remove the vent grille by removing two screws
securing it to the out case.
(2) Remove two screws securing it to the air duct.
(3) Remove the mounting plate by turning the screws
(1 or 2 screws)securing it to the out case.
(4) Remove two screws on the left central edge and
one screw on the right central edge of Base plate.
Remove the Mount, All from the out case by
removing one screw securing it to the out case.
(5) Remove six screws of the rear cavity.
(6) Remove the outcase.
Door
Mount,All
Vent Grille
Out Case
Mounting
Plate
Power cord cover
Controller
Figure 8
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