Toshiba RAS-M10UKCV-E3 - P.C. Board Layout

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10-8-2. P.C. Board Layout

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Table of Contents

Service Manual1
Table of Contents2
Specifications3
- Specifications of Performance When each Indoor Unit Is Combined with Other Unit5
- Capacity Variation Ratio According to Outdoor Temperature20
- Capacity Variation Ratio According to Pipe Length20
- Operation Characteristic Curve20
- Electrical Data21
- Piping Materials and Joints Used26
- Refrigerant Piping Installation26
Refrigerant R410A26
- Safety During Installation/Servicing26
- Flare Processing Procedures and Precautions27
- Minimum Thicknesses of Socket Joints27
- Processing of Piping Materials27
- Thicknesses of Annealed Copper Pipes27
- Dimensions Related to Flare Processing for R2228
- Dimensions Related to Flare Processing for R410A28
- Flare and Flare Nut Dimensions for R410A28
- Flare Processing Dimensions28
- Flare and Flare Nut Dimensions for R2229
- Relations between Flare Nut and Flare Seal Surface29
- Tightening Torque of Flare for R410A29
- General Tools30
- Required Tools30
- Tools Exclusive for R410A30
- Configuration of Refrigerant Charging31
- Recharging of Refrigerant31
- Brazing of Pipes32
- Materials for Brazing32
- Phosphor Bronze Brazing Filler32
- Silver Brazing Filler32
- Brazing33
- Brazing Method to Prevent Oxidation33
- Characteristics Required for Flux33
- Types of Flux33
Construction Views34
- Indoor Unit34
- Mounting Dimension of Anchor Bolt35
Outdoor Unit35
Simple Check Points for Diagnosing Faults36
Wiring Diagram36
Color Identification37
Specifications of Electrical Parts38
Refrigerant Cycle Diagram40
Operation Data43
Control Block Diagram48
Outdoor Unit (Inverter Assembly)49
Operation Description50
- Outline of Air Conditioner Control50
- Capacity Control51
- Compressor Revolution Range51
- Current Release Control51
- Power Factor Improvement Control51
- Indoor Fan Control (DC Fan Motor)52
- Louver Control52
- P. M. V. (Pulse Modulating Valve)52
- Prevent-Freezing Control52
- Description of Operation Circuit53
- Fan Only Operation53
- Outdoor Fan Control (DC Fan Motor)53
- Cooling Capacity Control54
- Cooling Operation54
- Setting of Air Flow54
- Compressor Motor Speed Control55
- Discharge Temperature Control55
- Limit for Maximum Compressor Motor Speed by Indoor Fan Speed55
- DRY Operation56
- ECONO. Operation Control56
- Cold Draft Preventing Control57
- Dehumidifying-Preferential Cooling Capacity Control57
- Heating Operation57
- High-Temp. Release Control58
- Auto Operation59
- Temporary Auto Operation59
- Temporary Cooling Operation59
- Temporary Operation59
- Auto Restart Function60
- How to Set the Auto Restart60
- How to Cancel the Auto Restart61
- In Case of Power Failure During the Timer Operation61
- Remote Control and Its Functions62
- Names and Functions of Indications on Remote Control63
Installation Procedure64
- Safety Cautions64
- Installation/Servicing Tools65
Indoor Unit66
- Cutting a Hole67
- Installation Place67
- Mounting the Installation Plate67
- Remote Controller67
- Die-Cutting Front Panel Slit68
- How to Connect the Connecting Cable68
- Piping and Drain Hose Forming68
- Wiring Connection68
- In Case of Bottom Right or Bottom Left Piping69
- In Case of Right or Left Piping69
- Indoor Unit Fixing69
- Left-Hand Connection with Piping69
- How to Mount the Front Panel70
- How to Remove the Front Cabinet70
- Position of Remote Control Selector Switch70
- Setting of Remote Controller Selector Switch70
- Check and Test Operation71
- Accessory and Installation Parts72
- Optional Installation Parts72
- Refrigerant Piping72
- Refrigerant Piping Connection73
- How to Remove the Side Panel74
- Tightening Connection74
- Tightening Torque of Flare Pipe Connections74
- Electrical Work75
- Evacuating75
- How to Wire75
- 3 Units (a + B + C) Multi76
- 4 Units (a + B + C + D) Multi76
- Stripping Length Power Cord and Connecting Cable76
- Miswiring (Mispiping) Check77
- Miswiring (Mispiping) Check by LED Indication77
- Self-Diagnosis by LED Indication78
- Useful Functions78
How to Diagnose the Trouble79
- Confirmation of Power Supply80
- Confirmation of Power Voltage80
- First Confirmation80
- Operation Which Is Not a Trouble80
- Primary Judgment80
- Judgment by Flashing LED of Indoor Unit81
- How to Use Remote Control in Service Mode82
- Self-Diagnosis by Remote Control82
- Caution at Servicing83
- Judgement of Trouble by Every Symptom85
- Power Is Not Turned on (Does Not Operate Entirely)85
- Power Is Not Turned on Though Indoor P.C. Board Is Replaced86
- Only Indoor Fan Motor Does Not Operate87
- Indoor Fan Motor Starts Rotating by Turning on Power Supply Alone88
- How to Examine Whether Remote Controller Is Good or Bad89
- Outdoor Unit Does Not Operate90
- Outdoor Unit Stops in a Little While after Operation Started90
- Wiring Failure (Interconnecting and Serial Signal Wire)90
- Trouble Diagnosis by Outdoor LED91
- How to Diagnose Trouble in Outdoor Unit92
- Summarized Inner Diagnosis of Inverter Assembly92
- How to Check Simply the Main Parts93
- How to Check the P.C. Board93
- P.C. Board Layout95
- Sensor Characteristic Table96
- How to Simply Judge Whether Outdoor Fan Motor Is Good or Bad99
How to Replace the Main Parts100
Microcomputer102
Exploded Views and Parts List110

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