YOKOGAWA DL2700 Series, Service Manual

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5 - 6
SM 700820-01E
(4)
When a trouble has occurred, check the non-conforming test item and select the relevant
defective assembly from Table 5.4 Correspondence of test items to defective assem-
blies. If necessary, replace the relevant assembly.
Table 5.4 Correspondence of test items to defective assemblies
Test item Assembly
2.5 Vertical Axis DC Voltage Accuracy Test ATT Board Assembly
AFC Board Assembly
TRG Board Assembly
ACQ Board Assembly
2.6 Frequency Response Test ATT Board Assembly
ACQ Board Assembly
2.7 Time-base Accuracy Test TRG Board Assembly
2.8 Trigger Sensitivity Test ATT Board Assembly
AFC Board Assembly
TRG Board Assembly
2.9 Trigger Accuracy Test ATT Board Assembly
AFC Board Assembly
TRG Board Assembly
2.10 Logic Input Function Test Logic I/F Board Assembly
TRG Board Assembly
ACQ Board Assembly
5.3 Self Test
After turning the power on, press the [MISC] key and select the “Next 1/2” and “Self
test” options. In addition, select “Test item” option to call up the display of “Figure 5.3
Self test item window”. Repeat pressing the “Test item” to select the execution items.
Figure 5.3 Self test item