DIAGNOSTICS
Checkout Procedures
10DEC05
DG4825-1
Page
148 of 180
1
Measure the following voltages at the test points:
2
If any of the voltages do not match, install a new
SLOW SCAN CONTROLLER BOARD A6 and COIL BOARD A7
1
Slow Scan Current and Velocity Tests
.
2
If the tests exceed the recommended output, check for mechanical binds in the SLOW
SCAN AY.
Voltage
MULTIMETER
Ground
Positive
5
±
0.2 V DC, Digital
TP7
TP8
5
±
0.1 V DC, Isolated
TP11
TP9
5
±
0.2 V DC, Analog
TP10
TP19
12
±
0.5 V DC
TP10
TP18
−
12
±
0.25 V DC
TP10
TP17
13.5
±
0.1 V DC
TP10
TP6
−
13.5
−
1.5 V DC
TP10
TP5
24
±
2.5 V DC
TP1
TP2
5
±
0.2 V DC, startup
TP1
TP3