Toshiba MMU-UP0091HP-E Service Manual page 3

8. APPLIED CONTROL AND FUNCTIONS
(INCLUDING CIRCUIT CONFIGURATION) ........................................................... 79
8- 1. Indoor controller block diagram (MCC-1643) .................................................................. 79
8- 1-1. In Case of Connection of Wired Remote Controller ............................................. 79
8- 1-2. In Case of Connection of Wireless Remote Controller ........................................ 80
8-1-3. Connection of Both Wired Remote Controller and Wireless
Remote Controller .................................................................................................... 82
8- 2. Indoor controller block diagram (MCC-1720) .................................................................. 83
8- 2-1. In Case of Connection of Wired Remote Controller ............................................. 83
8- 2-2. In Case of Connection of Wireless Remote Controller ........................................ 84
8-2-3. Connection of Both Wired Remote Controller and Wireless
Remote Controller .................................................................................................... 85
8- 3. Indoor controller block diagram (MCC-1696) .................................................................. 86
8- 3-1. Connection of wired remote controller ................................................................. 86
8- 3-2. Connection of wireless remote controller .......................................................... 87
8- 4. Indoor Print Circuit Board ................................................................................................. 88
8- 4-1. MCC-1643 .................................................................................................................. 88
8- 4-2. MCC-1720 .................................................................................................................. 90
8- 4-3. MCC-1696 .................................................................................................................. 92
8- 5. Test run of indoor unit ...................................................................................................... 94
8- 6. Method to set indoor unit function DN code ................................................................... 98
8- 7. Applied control of indoor unit .........................................................................................105
9. TROUBLESHOOTING .......................................................................................... 124
9- 1. Overview ........................................................................................................................... 124
9- 2. Troubleshooting method ................................................................................................. 125
9- 3. Troubleshooting based on information displayed on remote controller ................... 131
9-4. Check Codes Displayed on Remote Controller and SMMS series Outdoor Unit
(7-Segment Display on I/F Board) and Locations to Be Checked ............................... 136
9- 5. Diagnostic Procedure for Each Check Code (Indoor Unit) .......................................... 151
9- 6. Sensor characteristics .................................................................................................... 159
9- 7. Maintenance list ............................................................................................................... 160
10. P.C. BOARD EXCHANGE PROCEDURES ........................................................ 161
10- 1. Replacement of indoor P.C. boards .............................................................................. 161
11. DETACHMENTS ................................................................................................. 168
11-1. 4-way cassette type ..........................................................................................................168
11-2. Ceiling type .......................................................................................................................178
11-3. Concealed Duct Standard type ........................................................................................188
11-4. Concealed Duct High Static Pressure type ......................................................................194
11-5. Concealed Duct High Static Pressure fresh air intake type ............................................208
11-6. Console type ......................................................................................................................222
11-7. High wall type .....................................................................................................................231
12. EXPLODED VIEWS AND PARTS LIST ............................................................. 245
12-1. 4-way cassette type ..........................................................................................................245
12-2. Ceiling type ....................................................................................................................... 252
12-3. Concealed Duct Standard type ........................................................................................ 259
12-4. Concealed Duct High Static Pressure type ...................................................................... 268
12-5. Concealed Duct High Static Pressure fresh air intake type ............................................ 276
12-6. Console type ...................................................................................................................... 282
12-7. High wall type ..................................................................................................................... 285
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