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.
Connector Voltage Readings
Connector Voltage Readings
Voltage (dc)
Plug Pin Label
12V 24V
Plug Pin Label
Voltage
(dc)
P6
A
Primary Power
9.5 -15
18-32
P6 A Primary
Power
18-32
P6
R
Primary Power
9.5 -15
18-32
P6 C Primary
Power
18-32
P6
U Secondary
Power
<1 <1
P6 E Primary
Power
18-32
P6
C
Secondary Power
<1
<1
P7
A
Secondary Power
< 1
P7
A
Primary Power
9.5 -15
18-32
P7
C
Secondary Power
< 1
P7
C
Secondary Power
<1
<1
P7
E
Secondary Power
< 1
P7
R
Primary Power
9.5 -15
18-32
P7
U Secondary
Power
<1 <1
P8
A
Primary Power
9.5 -15
18-32
P8
C Secondary
Power
<1 <1
B C
N P R
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.
Connector Voltage Readings
Connector Voltage Readings
Volts age (dc)
Plug Pin Label
12V 24V
Plug Pin Label
Voltage
(dc)
P6
A Primary
Power <1 <1
P6 A Primary
Power
<1
P6
R Primary
Power <1 <1
P6 C Primary
Power
<1
P6
U
Secondary Power
9.5 -15
18-32
P6
E
Primary Power
<1
P6
C
Secondary Power
9.5 -15
18-32
P7 A Secondary
Power
18-32
P7
A Primary
Power <1 <1
P7 C Secondary
Power
18-32
P7
C
Secondary Power
9.5 -15
18-32
P7 E Secondary
Power
18-32
P7
R Primary
Power <1 <1
P7
U
Secondary Power
9.5 -15
18-32
P8
A Primary
Power <1 <1
P8
C
Secondary Power
9.5 -15
18-32
B C
N P R
13.
FADEC Secondary Power ........................... OFF
IOF-550 Permold Series Engine Maintenance Manual
8-39
1 April 2007