Read Only Indicator Troubleshooting Flowchart - HP 7925D Service Manual

Troubleshooting
Set READ ONLY switch 55 to on.
Yes
NOTES:
1. Refer to the following diagram for circuit details.
• Read/Write System Functional Diagram, fig. 4-28.
2. PCA's associated with READ ONLY indicator malfunction in-
clude:
• Indicator PCA-A11.
Check if READ ONLY indicator lamp is burnt
out.
Replace lamp.
Disconnect connector A11P1 from A11J1
and check continuity between A11 P1-8 (on
cable) and ground.
7925
Check continuity through switch 55. If ok,
repair wiring. Otherwise, replace switch 55.
7311-18
Replace PCA-A11.
Figure 4-16. READ ONLY Indicator Troubleshooting Flowchart