AirStage AO54FJ, Service Manual

Page: 117 / 169

SERVICE SERVICE PARTS PARTS INFORMATION 5 INFORMATION 5
TR ASSY
Check Point 1: Check Circuit connection Check Point 1: Check Circuit connection
Check the connection to each terminal.
P
U
V
W
N
TR ASSY
OUTDOOR FAN SIDE
LOCATION
DETECTION
IPM Power
Supply
IPM Drive
1
9
(1)BROWN DC+5.0V
(2)RED GND
(3)ORANGE Lo
P/No.
9705253018 (TR ASSY)
Check Point 2 : Check Control PCB or TR PWB ASSY Check Point 2 : Check Control PCB or TR PWB ASSY
1.Check the supply voltage from Control PCB to IPM
Check DC+15.0V between terminal 1-2 of main PWB CN16 (IPM Power supply)
If the voltage does not appear,replace Control PCB
2.Check the voltage at Trip Terminal (To Check TR PWB)
Remove the connector CN14 between TR PWB ASSY- Control PCB.
Check DC+5V between terminal 1-2,2-3 of CN14 (Connector side)
P
U
V
W
N
TR PWB ASSY
1
9
(1)BROWN DC+5.0V
(2)RED GND
(3)ORANGE Lo(+DC5V)
Outdoor unit grille side
06-47
(+),( - ) shows the terminal of the meter
14 15
N ( )
N ( )
W ( )
V ( )
14 15
U ( )
P ( )
V ( )
U ( )
W ( )
V ( )
U ( )
P ( )
W ( )
V ( )
U ( )
W ( )
Normal
resistance
value
COMP
TERMINAL
P / N
TERMINAL
Multimeter
Resistance value
U
1M Ohm or greater
U
W
V
P
W
V
N
Confirm method for analog meter.
The resistance value is changes in a type
of the tester (Digital or Analogue)
and internal resistance.
Simple confirm method for digital meter.