Case IH AFX8010 Repair Manual page 1741

Test Point
3 Disconnect connector X136
from Left Front Speaker
H05.
Measure resistance
tween Radio A04 connector
X315 (pin 6) and Left Front
Speaker H05 connector
X136 (pin A).
4 Measure resistance be-
tween Left front Speaker
H05 connector X136 (pin
A) and Radio A04 connec-
tor X315 (pin 6).
Test Point
1 Disconnect connector X315
from Radio A04.
Measure resistance
tween Radio A04 connector
X315 (pin 3) and Radio
A04connector X315 (pin 4).
2 Disconnect connector X319
from Right Front Speaker
H07.
Measure resistance be-
tween Pin A and Pin B on
the lead from Speaker H07.
3 Disconnect connector X139
from Right Front Speaker
H07.
Measure resistance
tween Radio A04 connector
X315 (pin 3) and Right Front
Speaker H07 connector
X139 (pin B).
4 Measure resistance
tween Right front Speaker
H07 connector X139 (pin A)
and Radio A04 connector
X315 (pin 4).
BODY AND STRUCTURE - USER PLATFORM
Good Reading
Less than 1 ohm
be- If good reading, continue with
next step.
Less than 1 ohm
If good reading, Left Front
Speaker H05 wiring is okay.
C - - RIGHT FRONT SPEAKER CIRCUIT TEST
Good Reading
Approximately 4 ohms.
be- If good reading, Right Front
Speaker H07 and wiring are
okay.
Approximately 4 ohms.
If good reading, continue with
next step.
Less than 1 ohm
be- If good reading, continue with
next step.
be- Less than 1 ohm
If good reading, Right Front
Speaker H07 wiring is okay.
E.34 / 39
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).
Possible Cause of Bad Reading
Open/short to ground in circuit 976 (WH)
between Right Front Speaker H07 connector
X139 (pin B) and Radio A04 connector X315
(pin 3).
Open/short to ground in circuit 980 (BL)
between Right Front Speaker H05 connector
X139 (pin A) and Radio A04 connector X315
(pin 4).
Broken wire from Speaker H07 to connector
X139, either to Pin A or to Pin B.
Broken solder connection at Speaker H07.
Bad Speaker H07.
Open/short to ground in circuit 976 (WH)
between Right Front Speaker H07 connector
X139 (pin B) and Radio A04 connector X315
(pin 3).
Open/short to ground in circuit 980 (BL)
between Right Front Speaker H07 connector
X139 (pin A) and Radio A04 connector X315
(pin 4).