GE JS998 Series Technical Service Manual page 36

RELAY CONTROL TABLE - SLIDE IN RANGE
AC VOLTAGES
Main Pwr Board Relay
SERVICE MODE ON=120VAC (L1-N or L2-N)
Function or 240VAC (L1-L2)
L2 = J4-8 (K1-NO)
Right Cooling Fan
R CoolingFan -> On/Off
N = J103
L2 = J4-7 (K5-NO)
Left Cooling Fans
Mag Stirrer
Left Cooling Fan
L CoolingFans -> On/Off
L1 = J4-5 (K13-NO)
Oven Light
Ovenlight -> On/Off
HVT T2 = L2 = J107 (K9-NO)
HVT T3 = L2 = J105 (K9-NC)
Microwave
CookingLoads -> MW
HVT T1 = L1 = J114
L2 = J4-9 (K106-NO)
Vent Fan
VentFan -> On/Off
L1 = K10-NO
Convection Element
CookingLoads -> ConvElem
L2 = K102-NO (DLB)
Convection Fan L1 = J4-2 (K105-NC)
Clockwise
CookingLoads
-> ConvFan -> CW
Convection Fan
L1 = J4-3 (K105-NO)
Counter Clockwise
CookingLoads
-> ConvFan -> CCW
L1 = K7-NO
Broil Element
CookingLoads -> Broil
L2 = K11-COM (DLB)
L1 = K8-NO
Bake Element
CookingLoads -> Bake
L2 = K11-COM (DLB)
L1 = J113 (K103-NO)
Bake2 Element
CookingLoads -> Bake2
L2 = K11-COM (DLB)
L1 = J4-1 (K2-COM)
Oven Door Latch
DoorLatch -> Lock/Unlock
Note : Ground reference for dc voltage measurements
is J3-2 or J3-4 on MPB or J5-2 or J5-4 on MLB
Relay Control
ON = 0Vdc
OFF = 12Vdc
OFF=0V
MPB J1-10
MLB J3-10
MPB J1-9
MLB J3-9
N = J103
MPB J1-4
MLB J3-4
N = J103
OR
MPB J1-3
MLB J3-3
N = J103
MPB J1-16 OFF
MLB J3-16 OFF
N = J103
MPB J1-16
MLB J3-16
N = J103
MPB J1-18
MLB J3-18
MPB J1-14
MLB J3-14
N = J103
MPB = Main Power Board
MLB = Main Logic Board
DC VOLTAGES
Relay Control
Enable = 4.2Vdc
ON = 4.6Vdc
Disable = -14.0Vdc
OFF = -14Vdc *
MPB J1-17
MLB J3-17
MPB J1-1
OR
MLB J3-1
MPB J1-17 OFF
MLB J3-17 OFF
MPB J1-8 MPB J1-1
MLB J3-8 MLB J3-1
MPB J1-12
MLB J3-12
MPB J1-6 MPB J1-1
MLB J3-6 MLB J3-1
MPB J1-11
MLB J3-11
MPB J1-7 MPB J1-1
MLB J3-7 MLB J3-1
MPB J1-11
MLB J3-11
MPB J1-1
MLB J3-1
MPB J1-11
MLB J3-11
* OFF = 0Vdc if Disable = -14Vdc
– 36 –
Notes
Fan comes on when entering the
cooking loads menu.
Fan comes on when entering the
cooking loads menu.
K6 (Mag Main Relay) must be energized
MPB J1-5 ON (4.6Vdc)
MLB J3-5 ON (4.6Vdc)
Note: MagTap is automatically selected
by Line Voltage
Fan comes on when entering the
cooking loads menu.
K4 (Convection Fan Relay) must be
energized
MPB J1115 ON (0Vdc)
MLB J3-15 ON (0Vdc)
K4 (Convection Fan Relay) must be
energized
MPB J1-15 ON (0Vdc)
MLB J3-15 ON (0Vdc)
Broil element must be turned off
Broil element must be turned off