Specifications

REV.-A
5.1 GENERAL
Because various types of trouble can occur, trouble shooting is not easy to perform. Here, a simple
procedure is provided to perform trouble shooting, as shown
in Figure 5-1.
5,2
5-2
Unit Replacement
Figure 5-1. Troubleshooting Procedure
First, perform repair by unit replacement to determine defective units. Then replace the defective compo-
nents in the defective unit. In the unit repair procedure section, possible defective components are
indicated for each symptom, and normal waveforms and resistance values are noted in order to help find
the defective elements. After replacing the defective components, perform adjustment or lubrication by
referring to Chapters 4 and 6.
Table 5-1 shows measuring instruments required for troubleshooting.
Table 5-1. Measuring Instruments
Necessity
Description
Specification
Unit Replacement Unit Repair
Multi meter
o 0
Oscilloscope 50 MHz or more
—
o
Logic Analizer 50 MHz or more
—
o
Necessity : 0>0
5-1