Overlay Switch - Viking VCSB542 Service Manual

Service Diagnostics and Procedures–Disassembly
To avoid risk of electrical shock, personal injury, or death, disconnect electrical power to unit using power
switch before servicing. Wires removed during disassembly must be replaced on proper terminals to insure
correct earth ground and polarization. After servicing, reconnect power using power switch.
Control Panel (continued)
4. Remove the four screws securing the control
board cover. Remove control board cover.
5. Disconnect the ribbon from the control board.
Take caution with the ribbon cable to
prevent damage.
6. Remove the two strain relief screws.
Strain Relief Screw
© 2010 Viking Preferred Service
WARNING
8. The control panel can now be removed and the
high voltage and low voltage boards are accessible.
9. Reverse procedure to reinstall.

Overlay Switch

The unit uses an overlay switch to communicate
user input to the control boards. The overlay
connects to the control board via a ribbon cable.
1. To replace the overlay switch, remove the upper
air grill assembly, remove the control panel (see
Air Grill and Control Panel Removal sections).
2. Disconnect overlay switch from control.
Overlay Switch
Connection
3. Peel overlay off control panel (remove adhesive
to ensure replacement overlay adheres
properly).
4. Reverse procedure to reinstall.
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