New Holland T8010 Manual page 1329

Test point
1 Disconnect connector 95B
from the radio, and
connector 97F from the left
front speaker.
Measure resistance
between radio connector
95B, terminal 13 and left
front speaker connector
97F, terminal A.
2 Measure resistance
between speaker
connector 97F, terminal B
and radio connector 95B,
terminal 14.
Test point
1 Disconnect connector 95B
from the radio, and
connector 96F from the
right front speaker.
Measure resistance
between radio connector
95B, terminal 11 and right
front speaker connector
96F, terminal A.
3 Measure resistance
between speaker
connector 96F, terminal B
and radio connector 95B,
terminal 12.
Test point
1 Disconnect connector 95B
from the radio, and
connector 92F from the
right rear speaker.
Measure resistance
between radio connector
95B, terminal 9 and left
front speaker connector
92F, terminal A.
Section 55 - Electrical System - Chapter 1
B - Left Front Speaker Circuit Test
Good Reading
Less than 1 ohm
If good reading, go to test
point 2.
Less than 1 ohm
If good reading, left front
speaker wiring is okay.
C - Right Front Speaker Circuit
Good Reading
Less than 1 ohm
If good reading, go to test
point 2.
Less than 1 ohm
If good reading, right front
speaker wiring is okay.
D - Right Rear Speaker Circuit Test
Good Reading
Less than 1 ohm
If good reading, go to test
point 2.
55-1-148
Possible Cause of Bad Reading
Open/short to ground in circuit 873B(O)
between connectors 95B and 97F.
Continue with next test point.
Open/short to ground in circuit 873A(B)
between connectors 95B and 97F(B).
Possible Cause of Bad Reading
Open/short to ground in circuit 872B(O)
between connectors 95B and 96F.
Open/short to ground in circuit 872A(B)
between connectors 95B and 96F.
Possible Cause of Bad Reading
Open/short to ground in circuit 874B(O)
between connectors 95B and 92F.
Continue with next test point.