Rohde & Schwarz TS-PMB, Руководство пользователя

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Troubleshooting
R&S
®
TS-PMB
21 User Manual 1153.5233.12 ─ 06
9 Troubleshooting
If the system is not running properly, try to find the problem with the following tests. If
the tests do not help to locate the problem, contact your Rohde
& Schwarz service rep-
resentative.
● LED test .................................................................................................................. 21
● Power-on test ..........................................................................................................21
● R&S TSVP self-test .................................................................................................22
● Contacting customer support .................................................................................. 22
9.1 LED test
The module has three LEDs on its front panel that indicate its status.
After turning on the system, all LEDs light up for a short time to indicate that the power
supply is present and that all LEDs are working.
●
A single LED does not light up in that time frame:
Indicates a faulty LED or faulty LED control.
●
All LEDs do not light up during that time frame:
Indicates that the power supply for the module is faulty.
Check the status LEDs of the main power supply module in slot A3 and A4.
For rear modules, you have to check the LEDs separately, see "Power-on test for mod-
ules with a rear I/O supply module" on page 22.
9.2 Power-on test
The power
‑
on test runs at the same time as the LED test. The following statements
can be made regarding the different display states of the LEDs.
●
"PWR LED" (green LED) = on
Indicates that all power supply voltages are present.
●
"PWR LED" (green LED) = off
Indicates that at least one power supply voltage is missing.
●
"ERR LED" (red LED) = off
If the green LED is illuminated at the same time, indicates that the system is work-
ing without any errors.
●
"ERR LED" (red LED) = on (or blinking)
Indicates a hardware problem.
Power-on test