Disassembly Instructions - GE JVM1790BK Service Manual

DISASSEMBLY INSTRUCTIONS

IMPORTANT NOTES:
UNIT MUST BE DISCONNECTED FROM ELEC-
TRICAL OUTLET WHEN MAKING REPAIRS, RE-
PLACEMENTS, ADJUSTMENTS AND CONTIN-
UITY CHECKS. WAIT AT LEAST ONE MINUTE,
UNTIL THE HIGH VOLTAGE CAPACITOR IN THE
HIGH VOLTAGE POWER SUPPLY HAS FULLY
DISCHARGED.
THE CAPACITOR SHOULD BE DISCHARGED BY
USING INSULATED WIRE - I.E. TEST PROBE
CONNECTED TO 10K-OHM RESISTOR IN SERIES
TO GROUND.
WHEN RECONNECTING THE WIRE LEADS TO
ANY PART, MAKE SURE THE WIRING CONNE-
CTIONS AND LEAD COLORS ARE CORRECTLY
MATCHED ACCORDING TO THE OVERALL CIR-
CUIT DIAGRAM. (ESPECIALLY SWITCHES AND
HIGH VOLTAGE CIRCUIT.)
A. REMOVING POWER AND CONTROL
CIRCUIT BOARD (Figures 1, 2 and 3)
(1) Disconnect power at the main fuse or circuit
breaken, or pull the plug. Remove the top grille by
removing the two screws that hold it in place.
(2) Remove a screw securing the control panel
assembly to the oven cavity.
(3) Remove the control panel with pushing it upward.
(4) Remove the six connectors (CN1, CN2, CN3, CN5,
CN6, CN8) and wire leads (Relay2, Relay11) from
the circuit board.
Control Panel
Screw
Power
Transformer
(CN3)
(CN6)
(Relay 11)
(Relay 2)
(CN2)
(CN1)
(CN8)
(CN5)
Figure 1
(5) Remove 7 screws securing the circuit board.
(6) Remove the FPC connector from the terminal
socket following "HOW TO REMOVE THE FPC
CONNECTOR" on the next page.
(7) Remove the knob.
(8) Remove the circuit board from the control bracket
carefully.
Control Bracket
FPC Connector(S1)
Circuit Board
7-4
Circuit Board
Figure 2
Figure 3