Overlay Switch (Continued); High Voltage Board; Low Voltage Board - Viking FDBB5361 Service Manual

Disassembly
To avoid risk of electrical shock, personal injury, or death, disconnect electrical power source to unit, unless
test procedures require power to be connected. Ensure all ground wires are connected before certifying unit as
repaired and/or operational.

Overlay Switch (continued)

3. Peel overlay off control panel and remove
(remove adhesive to ensure replacement
overlay adheres properly)
4. Reverse procedure to reinstall.

High Voltage Board

A control board is used to operate functions
of the unit. Once an input is received from
the low voltage board, the high voltage board
sends an output to activate the components.
1. To access the high voltage board, remove
the upper air grille assembly, and control
panel (see Air Grille and Control Panel
Removal sections, Page 14).
2. Compress plastic standoffs securing the
high voltage board and pull towards you.
HV Board
High voltage board is now accessible.
To check high voltage board, refer to
chart on Page 47.
3. Reverse procedure to reinstall.
16
! WARNING

Low Voltage Board

The unit uses a control board in conjunction
with an overlay switch to operate functions
of the refrigerator/freezer. Interaction with
the low voltage board is via the ribbon cable
attached to the overlay switch.
1. To access the low voltage board, remove
the upper air grille assembly, control
panel (see Air Grille and Control Panel
Removal sections, Page 14).
2. Compress plastic standoffs securing low
voltage board, disconnect wiring and
remove.
LV Board
To check low voltage board, refer to chart on
Page 48.
3. Reverse procedure to reinstall
©2012 Viking Preferred Service