Teledyne Continental Motors, Inc.
TM
Troubleshooting
8-13.3. Power Supply Check
Procedure
1.
Master Power Switch ....................................ON
2.
FADEC Primary Power circuit breakers......... IN
3.
HSA/SSA Primary Power circuit breakers ..... IN
4.
FADEC Secondary Power Switch .............. OFF
5.
FADEC Primary Power Switch ....................ON
6.
Measure the voltage with a DVM at the specified pins in reference to aircraft ground.
J5 and J6 Connector Voltage Readings
Plug
Pin No. Label
12 VDC system
P5
A
Primary Power (Power A)
9.6-16 VDC
P5
R
Primary Power (Power A)
9.6-16 VDC
P5
U
Primary Power (Power A)
9.6-16 VDC
P5
C
Secondary Power (Power B)
< 1
P6
A
Primary Power (Power A)
9.6-16 VDC
P6
C
Secondary Power (Power B)
< 1
P6
R
Secondary Power (Power B)
< 1
P6
U
Secondary Power (Power B)
< 1
IOF-240 Series Engine Maintenance Manual
8-33
31 August 2007
Change 1
7.
FADEC Primary Power Switch ................... OFF
8.
Master Power Switch .................................. OFF
9.
FADEC Secondary Power circuit breakers..... IN
10.
HSA/SSA Secondary Power circuit breakers . IN
11.
FADEC Secondary Power Switch ................ON
12.
Measure the voltage with a DVM at the specified pins in reference to aircraft ground.
P5 and P6 Voltage Readings
Plug Pin
No.
Description 12
VDC
system
P5
A
Primary Power (Power A)
< 1
P5
R
Primary Power (Power A)
< 1
P5
U
Primary Power (Power A)
< 1
P5
C
Secondary Power (Power B)
9.6-16 VDC
P6
A
Primary Power (Power A)
< 1
P6
C
Secondary Power (Power B)
9.6-16 VDC
P6
R
Secondary Power (Power B)
9.6-16 VDC
P6
U
Secondary Power (Power B)
9.6-16 VDC
13.
FADEC Secondary Power ........................... OFF
