Trouble Shooting
39
TROUBLE SHOOTING
Use the trouble shooting chapter to diagnose common
problems for servicing. Each trouble shooting section will
describe the proper working condition for each of the major
components.
.
Power-On Test ......................................................................... 40
Power Supply Checks ............................................................... 40
Display Board Checks ............................................................... 41
Digital Circuitry Checks ............................................................ 42
Key Matrix Checks.................................................................... 43
Digital Circuitry Checks ............................................................ 43
Servicing should only be performed by a qualified
technician. The following sections involve working in close
proximity to dangerous voltages. When working with or
near AC Power supplies, live voltages are present on
exposed parts/components. Ensure proper care and
precautions are used. Before using the
Trouble Shooting
chapter, read the
Safety Requirements
and
Precautions
Before Use
section. Failure to do so may damage the
instrument or result in injury or death.
To Next Page
Loading...
