Electrolux E23CS75DSS0 - The Power Input Electronic Control (Inverter); To Check;Replace the Inverter; VCC Control Blocl Diagram

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Section C - Electrical Components
Inverter
TheInverterreplacestheSolidStateRelay,the
OverloadProtectorandtheRunCapacitor.The
Inverterhas115VoltACcurrenttoitallthetimethe
refrigeratorisconnectedtolinevoltage.Itpicksup
The Power Input Electronic
Control (Inverter)
Thesolidstatepowerinputelectroniccontrolcon-
tains:
1. Lowvoltagepowersupply.
2. EMIFilterandVoltageSuppressorCircuit.
3. AC-DCConverter
4. Three-phaseInverterBridge
5. Serialcommunication.
6. MicrocontrollerorDSPControllerProtection.
7. VoltageSensor
115Voltsdirectlyfromtheservicecord.Itreceives
a2to5voltDCsignalfromthemaincontrolboard
locatedundertherefrigeratorintheleftfront
openingbehindthebottomgrill.
To Check/Replace the Inverter
1. UseyourMultimeteroragoodvoltmeterset
on300voltACtotestthevoltagegoinginto
theinverterfromtheproductservicecord.Do
notdisconnectthemolexconnector.Slidethe
probesfromyourmeteralongsidethewires
untilyouconnectwiththeterminalitself.You
shouldread115VoltAC+or-10%.Ifless
checkservicecordandsupplyvoltage.
2. SetyourmetertoDConascaleascloseto
10Voltasavailable.Donotdisconnectthe
molexconnector.Slidetheprobesfromyour
meteralongsidethewiresuntilyouconnect
withtheterminalitself.Youshouldread
between2and5VoltDC.Ifvoltageisoutside
the2to5VoltDCrangereplacethemain
controlboard.
EMI Filter and
Voltage Suppressor
Circuit
AC-DC Converter Three-phase
Inverter Bridge
3 phase
Brushless DC
motor
DC Voltage
Voltage Sensor
Microcontroller or DSP Controller
Protection, sensors, arithmetic,
communication ... additional functions
Serial
communication and
speed reference
Low voltage power
supply
Double or Basic Insulated
DC Voltage output
Applicable Standards
To electronic circuit
Power limit,
over-current protection
VCC Control Block Diagram