MSG Equipment MS004 COM, User Manual

Page: 21 / 100

English
Test bench MS004 COM
21
connections are specified. Referring to the voltage regulator connector terminals and the
Appendix 1, identify its type.
WARNING! The diagnostics mode shall conform with the diagnosed voltage regulator type.
5.5.1. Lamp voltage regulator diagnostics
1. Connect voltage regulator with the bench diagnostic outputs, except B+ output.
2. Turn on the mode of the diagnostics of voltage regulators pressing the button
Voltage regulator
tester . To test the lamp regulators, you shall not choose any mode because the control lamp D+
works at any mode.
3. Choose the nominated voltage of the diagnosed voltage regulator pressing the button either
12V or 24V .
4. Connect the bench diagnostic output B+ with the corresponding voltage regulator terminal.
Now, the stabilization voltage rate shall be within 14 - 14.8 V for 12V voltage regulators, within 28
-29.8 V for 24V voltage regulators, and it shall conform with the specifications.
5. Disconnect the cable ST from the voltage regulator. The control lamp indicator (ref. 5, fig. 3)
shall light up. Connect ST cable back - the control lamp indicator shall go off.
6. Failure to comply with the one of the paragraphs 4 – 5 indicates the voltage regulator defects.
7. Press
Voltage regulator tester button to exit the diagnostics mode. Disconnect the cables from
voltage regulator.
5.5.2. P-D, C, SIG, RLO voltage regulator diagnostics
1. Connect voltage regulator with the bench diagnostic outputs, except B+ output.
2. Turn on the mode of the diagnostics of voltage regulators pressing
Voltage regulator tester
button.
3. Choose the nominated voltage of the diagnosed voltage regulator pressing
12V button.
4. Connect the bench diagnostic output B+ with the corresponding voltage regulator terminal.
Here, the stabilization voltage rate shall become equal to the nominated rate with the possible
deviation -0.2V.
5. Change the nominated stabilization voltage from 13.2 up to 15V with
REGULATION GC knob. The
measured stabilization voltage rate shall change in proportion to the nominated one.
6. For the voltage regulators of P-D types, disconnect ST cable from voltage regulator. P value
shall be equal to 0. Connect ST cable back - P value shall become the previous.