Case IH AFX8010 Repair Manual page 1740

Test Point
6 Measure for 12 volts at
Fuse F11.
7 Key Ignition Switch S02
in "IGN" position. Mea-
sure for 12 volts at
Transceiver Outlet con-
nector X141 (pin 2).
8 Measure 12 volts at
Fuse F13.
9 Measure resistance be-
tween Transceiver Out-
let connector X141
(pin 1).
Test Point
1 Disconnect connector
X315 from Radio A04.
Measure resistance
tween Radio A04 connector
X315 (pin 6) and Radio A04
connector X315 (pin 5).
2 Disconnect connector X136
from Left Front Speaker
H05.
Measure resistance
tween Pin A and Pin B on the
lead from the Speaker H05.
BODY AND STRUCTURE - USER PLATFORM
Good Reading
12 volts
If good reading, repair open circuit
081 (OR) between Radio connec-
tor X314 (Pin 7) and Fuse F11.
12 volts
If good reading, go to test point 9.
12 volts
If good reading, repair open circuit
083 (OR) between Transceiver
Outlet connector X141 (pin 2) and
Fuse F13.
Less than 1 ohm
If good reading, power and ground
to Transceiver Outlet connector
X141 (pin 1) are working properly.
B - - LEFT FRONT SPEAKER CIRCUIT TEST
Good Reading
Approximately 4 ohms.
be- If good reading, Left Front
Speaker H05 and wiring are
okay.
Approximately 4 ohms.
be- If good reading, continue with
next step.
E.34 / 38
Possible Cause of Bad Reading
Open circuit 081 (OR) between Fuse F11 and
Accessory 2 Relay K03.
Blown fuse F11 or Accessory 2 Relay K03.
Refer to Power Distribution for Accessory 2
Relay K03 testing.
Open 083 (RD) circuit between Transceiver
Outlet connector X141 (pin 2) and Fuse F13.
Check for connection at in--line connector
X002 (pin11).
Continue to next test point.
Blown Fuse F13.
Open circuit 008 (OR) between Accessory 2
Relay K03 (pin 5) and Fuse F13.
Refer to Power Distribution for Accessory 2
Relay K03 testing.
Open circuit 281 (BK) between Transceiver
Outlet connector X141 (pin 1) and ground.
Possible Cause of Bad Reading
Open/short to ground in circuit 977 (WH)
between Left Front Speaker H05 connector
X136 (pin B) and Radio A04 connector X315
(pin 5).
Open/short to ground in circuit 983 (BL)
between Left Front Speaker H05 connector
X136 (pin A) and Radio A04 connector X315
(pin 6).
Broken wire from Speaker H05 to connector
X136, either to Pin A or to Pin B.
Broken solder connection at Speaker H05.
Bad Speaker H05.