Control Board Layout & Summary Table - Sub-Zero 700-3 BASE Technical & Service Manual

Electronic Control System
MAIN CONTROL BOARD LAYOUT AND SUMMARY TABLE
Electrical connection points on the main control board are labeled alphanumerically. These labels correspond with
the alphanumeric summary table, located on the wiring diagram. By referencing the summary table, it is possible to
identify which components are connected at which points on the main control board. Below is a layout diagram of
the main control board, and a copy of a model 700BCI-3 summary table. (See Figures 3-2 & 3-3)
NOTE: All components on the control board are non-replaceable. If a problem with the control board is identified,
the complete control board must be replaced.
NOTE: There is also a small control board in the control panel assembly (Not Shown). All components in the con-
trol panel assembly are non-replaceable. If a problemwith the control panel is identified, the complete control panel
assembly must be replaced.
J5
TERMINAL
120 VOLT CIRCUITS
P4
P3
P1 COMPRESSOR
P2
J3-1
J3-2
J3-3
J3-4
J3-5
J3-6
J3-7
J2-1
J2-2
J2-3
J2-4
LOW VOLTAGE THERMISTOR CIRCUITS
J5-1,2
J5-3,4
J5-5,6
J5-7
J5-8
J6-1
J6-2
J6-3
J4-1
J4-2
J4-3
J4-4
J4-5
J4-6
#3758424 - Revision B - December, 2005
J4
PIN 1
PIN 1
PIN 1
J3
Figure 3-2. Main Control Board Layout
MAIN CONTROL BOARD SUMMARY
CIRCUIT DESCRIPTION
LN NEUTRAL
L1 POWER IN
COMPRESSOR
DEFROST DEFROST HEATER
EVAPORATOR FAN
FAN 1
NOT USED
ICE MAKER
ICE
NOT USED
REFRIGERATOR FAN
FAN 2
NOT USED
LIGHTS LIGHTS
FRZ DRAWER LIGHT SENSE
LWR
UPR REF DRAWER LIGHT SENSE
DEF DEFROST SENSOR
ICE ICE MAKER VALVE SENSOR
NOT USED
UPPER REFRIGERATOR COMPARTMENT
LOWER FREEZER COMPARMENT
EVAPORATOR
EVAP
EVAPORATOR
EVAP
N
BAFFLE NEUTRAL
C BAFFLE CLOSE
O BAFFLE OPEN
DISPLAY DISPLAY WIRING
DISPLAY DISPLAY WIRING
DISPLAY DISPLAY WIRING
DISPLAY DISPLAY WIRING
DISPLAY DISPLAY WIRING
DISPLAY DISPLAY WIRING
Figure 3-3. Main Control Board Summary Table
Integrated 3
(700-
J6
PIN 1
P2 P1
FUNCTION
NEUTRAL INTO BOARD
POWER INTO BOARD
POWERS COMPRESSOR AND CONDENSER FAN
POWERS DEFROST CIRCUIT AND FILL TUBE HEATER
POWERS EVAPORATOR FAN
POWERS ICE MAKER
POWERS FFAN IN REFRIGERATOR
POWERS LIGHTS
SENSES IF FREEZER DRAWER OPEN
SENSES IF REFRIGERATOR DRAWER OPEN
SENSES WHEN DEF HEATER SHUTS OFF
SENSES WATER VALVE ACTIVATION
SENSES REFRIGERATOR CABINET TEMPERATURE
SENSES FREEZER CABINET TEMPERATURE
SENSES EVAPORATOR TEMPERATURE
SENSES EVAPORATOR TEMPERATURE
BAFFLE NEUTRAL
PULSED TO CLOSE BAFFLE
PULSED TO OPEN BAFFLE
12VDC POWER SUPPLY FOR DISPLAY BOARD
12VDC POWER SUPPLY FOR DISPLAY BOARD
SERIAL DATA RECEIVE
SERIAL DATE TRANSMIT
GROUND FOR DISPLAY BOARD POWER SUPPLY
GROUND FOR DISPLAY BOARD POWER SUPPLY
3-4
Series
BASE)
J2
PIN 1
P3 P4
COLOR
WHITE
BLACK
PURPLE
BLUE
RED
PINK
GRAY
YELLOW
ORANGE/BLACK
ORANGE
GRAY/WHITE
TAN
BLUE/YELLOW
BLUE/BLACK
BLUE/RED
ORANGE/RED
YELLOW/RED
YELLOW/BLACK
YELLOW/WHITE
BLACK
WHITE
RED
YELLOW
ORANGE
BLUE