Table 12-1. Wl Power-Cable Connections (2 of 2)

 

Signal

A2Jl

A3Jl

A4Jl

A5Jl

46Jl-

414J1

415Jl

 

 

 

:pins)

:pins)

:pins)

:pins)

:pins)

(Pins)

(Pins)

$5

V

12

39

 

 

39*

 

 

$5 v

11

40

 

 

4 0 *

 

 

$5

V

10

41

 

 

41*

 

 

+5

V

9

42

 

 

42*

 

 

+5

V

8

43

 

 

43*

 

 

+5

V

7

44

 

 

44*

 

 

+28 V

6

45

 

 

45*

 

 

LINE TRIGGER

 

46

46*

 

 

+15 V

 

47

47*

 

 

+15 V

 

48

48*

 

 

- 1 5

V

 

49

49*

 

 

- 1 5

V

 

50

50*

 

 

 

 

 

 

 

 

 

 

 

 

* Indicates signal source connectors.

Troubleshooting Using the TAM

When using Automatic Fault Isolation, the TAM indicates suspected circuits that need to be manually checked. Use Table 12-1 to locate the manual procedure.

Table 12-2 lists assembly test connectors associated with each Manual Probe Troubleshooting test. Figure 12-2 illustrates the location of A17’s test connectors.

Table 12-2. Automatic Fault Isolation References

Suspected Circuit Indicated by Automatic Fault Isolation

Check A2 Controller

Check All Power Supply Outputs

Check Buck Regulator

Check Buck Regulator Control Circuitry

Check High-Voltage Supplies

Check Input Rectifier

Check Intensity Adjustments

Check Kick Start/Bias Circuitry

Check Low-Voltage Supplies

Manual Procedure to Perform

Blanking Signal

Dead Power Supply (steps 1-5)

Dead Power Supply (steps 22-23)

Dead Power Supply (steps 11-21)

High Voltage Supplies

Dead Power Supply (steps 6-7)

Intensity Problems (steps l- 4)

Dead Power Supply (steps 8- 10)

Low Voltage Supplies

12-4 Display/Power Supply Section