Filter
Top Products
39
THE CONTROL SYSTEM
Refer to the Component Plate Assembly
(Figure 45) when replacing
I/O Control Board
Power Supply
Relay
Smart Card Reader
Solid State Relay
I/O Control Board (Figure 45)
The I/O Control Board controls all aspects of oven
operation.
To replace a defective I/O Control Board:
1. Ensure “Cool Down” process is completed (“Cool
Down” message will disappear upon completion)
and unplug the o
ven.
2. Record the Serial Number (see page 29 for
viewing instructions).
3. Remove Right Side Panel.
4. Disconnect wiring from I/O Control Board.
5. Replace defective I/O Control Board with
P/N NGC-1008.
6.
R
econnect wiring and reattach Right Side Panel.
7. Re-enter the Serial Number (see page 29).
Power Supply (Figure 45)
24 VDC Output at 40 Watts. Supplies control
v
oltage for I/O Contr
ol Board, Relay, and Solid
S
tate R
elay (SSR).
To replace a defective Power Supply:
1.
E
nsure “Cool Down” process is completed (“Cool
Down” message will disappear upon completion)
and unplug the o
v
en.
2. Remove Right Side Panel.
3. Disconnect Wiring Harness from the defective
Power Supply.
4. Replace defective Power Supply with P/N 101206.
5. Reconnect Wiring Harness.
6. Reattach Right Side Panel.
Relay (Figure 45)
240 VAC, 30 Amp, Double Pole, Double Throw,
24 VDC Relay Coil. Actuates Rack Oscillator Motor.
To replace a defective relay:
1. Ensure “Cool Down” process is completed (“Cool
Down” message will disappear upon completion)
and unplug the oven.
2.
Remove Right Side Panel.
3. Disconnect Wiring Harness from defective relay.
4. Replace defectiv
e relay with P/N 101273.
5. Reconnect Wiring Harness.
6. Reattach Right Side Panel.
Smar
t Card Reader (Figur
e 45
)
Loads Recipe Menus from and writes Recipe
M
enus to the S
mart Card.
To replace a defective Smart Card Reader:
1.
E
nsur
e “Cool Down” process is completed (“Cool
Down” message will disappear upon completion)
and unplug the oven.
2.
R
emo
v
e Right Side Panel.
3. Check if connection cable is damaged. If so,
r
eplace with P/N 103023 (not pictur
ed) and
jump to step 5.
4. If Smart Card Reader is defective, replace with
P/N 100506.
5. Reattach Right Side Panel.