CM Oven Service Manual
Lit. No. 94-30-006B
Page 70
“CM” DAC RELAY BOARD
(Digital Appliance Controls)
There are 2 relay boards, 1 for a single oven and 1 for a double oven. You can use the
double oven board for a single oven. You must use a double oven board for a double oven.
The relay board has 14 snap relays activated by 24 volts d.c., 8 small pin headers that carry
signal voltage to components, and 5 large pin headers that provide or transfer 120 volts ac
to components.
Relays K0 through K15:
K0
Transfers 12 volts from transformer to microwave board.
K1
Transfers 120 volts from L2 to lower oven latch motor.
K2
Transfers 120 volts from L2 to microwave stirrer motor.
K3
None
K4
Transfers 120volts from L2to both oven cooling motors, tube fan, m/w TX
and cooling fan.
K5
Transfers 120 volts from L2 to both oven cooling motors, tube fan, m/w TX
and cooling fan.
K6
Transfers current to complete L2 v.a.c. Upper oven halogen light circuit.
K7
Transfers current to complete L2 v.a.c. Lower oven halogen light circuit.
K8
Transfers 120 volts from L2 to upper oven bake element.
K9
Transfers 120 volts from L2 to upper oven broil element.
K10
Transfers 120 volts from L2 to upper oven convection element.
K11
Transfers 120 volts from L2 to upper oven convection motor.
K12
Transfers 120 volts from L2 to lower oven bake element
K13
Transfers 120 volts from L2 to lower oven broil element.
K14
Transfers 120 volts from L2 to lower oven convection element.
K15
Transfers 120 volts from L2 to lower oven convection motor.
These relays have normally open contacts that transfer voltage when the are snapped
closed. These relays have a coil that is snapped closed by 24 VDC from the eeprom
(memory chip) on the relay board.
