SiUS341802EC
Check
Part 6 Service Diagnosis
372
4.4 Power Transistor Check
CHECK 4
Perform the following procedures prior to check.
(1) Power OFF.
(2) Remove all the wiring connected to the PCB where power transistors are mounted on.
PCB and Circuit Diagram
Preparation
h
Multimeter
Prepare the analog type of multimeter.
For the digital type of multimeter, those with diode
check function are available for the checking.
RXLQ72TATJU, RXLQ72TATJA, RXLQ72TBTJA
Point of Measurement and Judgment Criteria
Turn OFF the power supply. Then, after a lapse of 10 minutes or more, make measurement of
resistance.
No.
Measuring
point
When using the analog type of multimeter,
make measurement in resistance
measurement mode in the x1 k
range.
When using the digital type of
multimeter, make measurement in
diode check mode (
).
+
–
Judgement Criteria
Remarks
Judgement Criteria
Remarks
1
P4
U
2 ~ 30 k
–
1.2 V or more
Due to condenser
charge and so on,
resistance
measurement may
require some time.
2
P4
V
3
P4
W
4
U
P4
15 k
and more
(including
)
Due to condenser
charge and so on,
resistance
measurement may
require some time.
0.3 ~ 0.7 V
–
5
V
P4
6
W
P4
7
N4
U
8
N4
V
9
N4
W
10
U
N4
2 ~ 30 k
–
1.2 V or more
Due to condenser
charge and so on,
resistance
measurement may
require some time.
11
V
N4
12
W
N4
V
1R
L3B
P22
PS
X41A
V
1R
N
5
V
1D
SHT1
L2B
K1M
R1
V
+
X72A
W
HT
X63A
L1B
-
X6A
C1
P21
W
BLU
X4A
HAP
X601A
U
K3R
+
K84R
X71A
P11
–
P4
+
X6A
N
4
P5 RED
230
V
16K
N
4
U
V
W
P4
Содержание VRV Aurora RXLQ-TATJU Series
Страница 376: ...Check SiUS341802EC 369 Part 6 Service Diagnosis Reference Reference CHECK 7 Refer to page 378 CHECK 8 Refer to page 379...
Страница 405: ...SiUS341802EC Wiring Diagrams Part 7 Appendix 398 1 Wiring Diagrams 1 1 Outdoor Unit RXLQ72TATJU RXLQ72TATJA 2D112580C...
Страница 407: ...SiUS341802EC Wiring Diagrams Part 7 Appendix 400 RXLQ96 120TATJU RXLQ96 120TATJA 2D112581C...
Страница 409: ...SiUS341802EC Wiring Diagrams Part 7 Appendix 402 RXLQ72TAYDU RXLQ72TAYDA 2D112582D...
Страница 411: ...SiUS341802EC Wiring Diagrams Part 7 Appendix 404 RXLQ96 120TAYDU RXLQ96 120TAYDA 2D112583D...
Страница 417: ...SiUS341802EC Wiring Diagrams Part 7 Appendix 410 FXFQ07 09 12 15 18 24 30 36 48TVJU 3D086460B...
Страница 418: ...Wiring Diagrams SiUS341802EC 411 Part 7 Appendix BYCQ125BGW1 Self Cleaning Decoration Panel for FXFQ T 3D076375A...
Страница 420: ...Wiring Diagrams SiUS341802EC 413 Part 7 Appendix FXZQ05 07 09 12 15 18TAVJU 3D110443A...
Страница 425: ...SiUS341802EC Wiring Diagrams Part 7 Appendix 418 FXEQ07 09 12 15 18 24PVJU 3D098557A...
Страница 426: ...Wiring Diagrams SiUS341802EC 419 Part 7 Appendix FXDQ07 09 12 18 24MVJU C 3D050501C...
Страница 427: ...SiUS341802EC Wiring Diagrams Part 7 Appendix 420 FXSQ05 07 09 12 15 18 24 30 36 48 54TAVJU C 3D110467C...
Страница 429: ...SiUS341802EC Wiring Diagrams Part 7 Appendix 422 FXMQ07 09 12 15 18 24 30 36 48 54PBVJU 3D093209B...
Страница 433: ...SiUS341802EC Wiring Diagrams Part 7 Appendix 426 FXHQ12 24 36MVJU 3D048116C...
Страница 434: ...Wiring Diagrams SiUS341802EC 427 Part 7 Appendix FXAQ07 09 12 18 24PVJU 3D075354F...
Страница 441: ...SiUS341802EC Wiring Diagrams Part 7 Appendix 434 VAM1200GVJU 3D073270D...