Component Testing Procedures
!
WARNING
To avoid risk of electrical shock, personal injury, or death, disconnect power to oven and discharge capacitor
before servicing, unless testing requires it.
RS2220001 Rev. 2
20
All models except WDYRC
Top Keypad
Keypad
Switch
Ribbon
Trace
Ribbon
Trace
Keypad
Switch
Ribbon
Trace
Ribbon
Trace
Menu 4/Quantity
S1
11
10
Power Level
S19
9
5
To test keypad for proper
Menu 3
S3
11
8
Time Entry
S22
8
7
operation:
Pause
S13
10
5
Hold
S27
7
6
1. Identify ribbon traces
Delete
S14
10
4
Enable
S28
7
5
for selected keypad
Status
S15
10
3
Add
S36
4
3
using chart.
Menu 1
S16
9
8
2. Resistance between
Menu 2
S17
9
7
selected traces =
0 ohms.
J4 - Place split in
ribbon cable to
3. Pressing keypad,
the right as facing
resistance between
the front of the unit.
selected traces is
less than 60 ohms.
Ribbon Cable
L.V. Board
Side Keyboard
Keypad
Switch
Ribbon
Trace
Ribbon
Trace
Keypad
Switch
Ribbon
Trace
Ribbon
Trace
Stop/Reset
S18
3
4
7
S39
6
10
0
S25
4
5
4
S40
7
8
Start
S30
4
10
5
S42
7
10
8
S31
5
6
2
S43
8
9
9
S35
5
10
3
S44
8
10
6
S36
6
7
1
S45
9
10
J3 - Place split in
ribbon cable to
To test keypad for proper
the right as
operation:
facing the front
1. Identify ribbon traces
of the unit.
for selected keypad
using chart.
2. Resistance between
selected traces =
0 ohms.
3. Pressing keypad,
Ribbon Cable
resistance between
selected traces is
less than 60 ohms.
L.V. Board
Split
1
1
1
J1
J2
J3
J4
J5
1
1
1
1
1
J1
J2
J3
J4
J5
1
1
Split
WDYRC
Top Keypad
J4 - Place split in
ribbon cable to
Sw itch
Ribbon
Trace
Ribbon
Trace
Sw itch
Ribbon
Trace
Ribbon
Trace
the right as
T-1
10
4
T-2
8
7
To test keypad for proper
facing the front
operation:
of the unit.
1. Identify ribbon traces
for selected keypad
using chart.
2. Resistance betw een
selected traces =
0 ohms.
3. Pressing keypad,
resistance betw een
selected traces is
L.V. Board
less than 40 ohms.
Ribbon Cable
Side Keypad
J3 - Place split in
ribbon cable to
Sw itch
Ribbon
Trace
Ribbon
Trace
the right as
S1
9
10
facing the front
S2
8
9
of the unit.
S3
8
10
S4
7
8
S5
7
10
To test keypad for proper
S6
6
7
operation:
S7
6
10
1. Identify ribbon traces
S8
5
6
for selected keypad
S9
5
10
using chart.
S10
4
5
2. Resistance betw een
S11
4
10
selected traces =
S12
3
4
0 ohms.
L.V. Board
3. Pressing keypad,
resistance betw een
selected traces is
less than 40 ohms.
Ribbon Cable
T-1
T-2
Split
Split
S-1
S-2
S-3
S-4
S-5
S-6
S-7
S-8
S-9
S-10
S-11
1 BAG
PITA
START
START
2 BAG
PITA
1 DOZ
BUN
2 DOZ
BUN
START
START
RESTART
S-12
1
1
1
J1
J2
J3
J4
J5
1
1
1
1
1
J1
J2
J3
J4
J5
1
1