Mitsubishi Electronics MSZ-FA25VA, MSZ-FA35VA Test point diagram and voltage, SW P.C. Board

Page 30

9-7. Test point diagram and voltage

MSZ-FA25VA - E1

MSZ-FA35VA - E1

Indoor electronic control P.C. board

Power supply input 230V AC {

SW P.C. Board

WASH reset switch(SW2)

Emergency operation switch(SW1)

5V DC

12V DC

Cement resistance

 

 

(R111)

 

 

Indoor fan motor

 

 

(CN211)

 

 

1311V DC

 

 

3(-) Fiducial terminal of

 

 

cathode side on measur-

 

 

ing high-voltage DC

 

 

415V DC

 

 

5(+)3-6V DC

 

 

6(+)0V DC or 15V DC

 

 

Interlock switch(Fan)

 

 

(CN1R1)

 

 

Room temperature

 

 

thermistor (CN111)

 

 

 

 

 

 

 

Varistor

 

 

(NR11)

 

 

CN2011

 

 

(Used for check of con-

 

 

ducting of thermal fuse)

 

 

Indoor coil thermistor

 

 

RT12(MAIN)12

 

 

RT13(SUB)34

 

 

 

 

 

 

 

 

 

 

(CN112)

 

 

Plasma deodorizing/air

 

 

purifying filter units

 

 

(CN1T1)

 

 

Safety device(Plasma unit)

 

 

(CN1T2)

 

 

Horizontal and

 

 

Vertical vane

 

 

motor(CN151)

Power monitor receiver P.C. board.

i-see Sensor (CN110)

Release of Auto restart function

Solder the Jumper wire

to JR07. (Refer to 8-3.)

 

 

}

 

 

Timer short mode

 

 

point JPG, JPS

Fuse

Front panel

(Refer to 8-1.)

 

(F11)

driving motor

 

 

(CN1U1)

 

Indoor coil thermistor [RT12 (MAIN), RT13 (SUB)] Room temperature thermistor (RT11)

Plasma power P.C. board

High-voltage lead wire (Red)

CN1 1DC 2.5V during PLASMA AIR PURIFYING/PLASMA DEODORIZING operation

2GND

3DC 12.5V during PLASMA AIR PURIFYING/PLASMA DEODORIZING operation

Standard lead wire (Green)

Resistance (k")

Temperature (:)

30

Image 30
Contents Contents MSZ-FA25VA E1 MSZ-FA35VA E1Technical Changes Generalized stepping motorFront panel opening/closing output gear Indoor Unit MSZ-FA25VA MSZ-FA35VA Wash reset switch Open Closed Receiving sectionPart Names and Functions See control operationMSZ-FA25VA E1 MSZ-FA35VA E1 Accessories Remote ControllerSpecification Specifications and rating conditions of main electric partsWhen outdoor unit is MXZ type Noise Criteria Curves MSZ-FA25VA E1MSZ-FA35VA E1 Indoor Unit Outlines and DimensionsMSZ-FA25VA E1 MSZ-FA35VA E1 Unit mmMSZ-FA25VA E1 Indoor Unit Wiring DiagramRefrigerant System Diagram MSZ-FA35VA E1 Indoor UnitRemote controller model KM05A Service FunctionsHow to modify the remote controller P.C. board OperationRemote controller Troubleshooting Install RemoveInformation for Multi System AIR Conditioner Outdoor Unit MXZ seriesFailure mode recall function OFFTo identify the error.Refer to 9-6.For G Plasma AIR Purifying Indoor unit failure mode tablePlasma Deodorizing OFFInstruction of troubleshooting StartTroubleshooting check table · Flashing of Power lamp indicates abnormalitiesPlasma AIRPurifying Trouble criterion of main parts Troubleshooting flow When Power lamp flashes 3-time Indoor fan does not operateCheck of indoor fan motor Check of remote controller and receiver P.C. board Indoor electronic control P.C.Board How to check mis-wiring and serial signal error LEDCheck of installation of the horizontal vane Safety Deviceplasma Unit Plasma Deodorizing 0V?Continuously flash? AIR Purifying 0V?Check of auto front panel Indoor unit and outdoor unit do not operateElectromagnetic noise enters into TV sets or radios YesPlasma power P.C. board Test point diagram and voltagePower monitor receiver P.C. board Indoor electronic control P.C. boardDisassembly Instructions Removing the panel PhotoOperating Procedure Photos Removing the electrical boxRemoving the indoor fan motor and the line flow Photo Removing the horizontal vane motor unit PhotoRemoving the vertical vane motor unit Photo FanRemoving the plasma power P.C. board Photo Parts List Accessory and Remote ControllerIndoor Unit Heat Exchanger Safety PlasmaIndoor Unit Electrical Parts and Functional Parts Motor Receiver P.C Board Holder509 Symbol Qty/unit Part name WiringDiagram E02 504Optional Parts Deodorizing Ceramic FilterPage Specifications subject to change without notice