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Disassembly
To remove the Selector Board:
1. Disconnect power to the oven.
2. Remove the Control Panel Assembly.
(See
Control Panel Removal
.)
3. Remove the Relay Board.
(See
Relay Board Removal
.)
4. Remove the Smart Board.
(See
Smart Board Removal
.)
5. Pull the selector knob off.
6. Remove the 3 Phillips-head screws holding the
Selector Board in place.
Selector Board
VFD Board (Vacuum Florescent Display)
CN1
Note:
Callout arrow identi
fi
es location of pin #1.
•
Location (See
Control Boards and Panel
Connections.)
• Part of the Control Panel Assembly.
• Displays information to the user.
• Requires 5 VDC between VFD Board CN1 pins 11
and 17 to operate.
• Display data comes from the Smart Board.
• Font information is contained in the VFD
software.
• All text is displayed in green.
• Disassembly.
(See
Disassembly
.)
Troubleshooting
1. Is the display dead or displaying incorrect or
incomplete information?
• If display is displaying incorrect or
incomplete information, check the harness
between the Smart Board and VFD. If OK,
replace the Smart Board and VFD
.
• If display is dead, go to step 2.
2. Pivot the Control Panel Assembly out from the
oven. (See
Control Panel Removal
.)
3. To gain better access to components, remove
the wires that plug into the large relays on the
Relay Board.
(See
Relay Board
.)
Cut the wire tie
that the Smart Board CN103 wire harness (See
Smart Board
.) is routed through.
(
Continued Next Page
)