Rohde & Schwarz R&S FSH - Overview of Errors, Causes, and Corrective Actions; Troubleshooting Power-On Issues

Troubleshooting R&S FSH
1145.5973.82 3.22 E-11
Overview of errors, causes, and possible corrective actions
This section lists various errors, the probable module causing the problem, and the suggested corrective
action.
Troubleshooting problems in switching on the instrument
• Error: R&S FSH cannot be switched on.
Note: When the instrument is switched on, a beep is issued to indicate that the instrument has
started.
Troubleshooting procedure Possible cause of error and further steps
Verify that the AC power is present.

Connect the adapter to the mains and wait several
minutes until the charger has recharged the battery.
Press the On button for > 5 s.

This will force the instrument to perform a software reset
and a reset of the internal RAM. The instrument firm-
ware will restart and all data will be reset.
Open the instrument and check the battery.

Voltage > 7.2 V.
Check the connectors from the AC power
supply: X2 and X7 (refer to section “Repair”).
Power connector broken.
Replace the power and audio connections.
Replace the mainboard (refer to “Replacing the
module”).
• Error: Display remains dark although the beep indicated that the software was started.
Troubleshooting procedure Possible cause of error and further steps
Open the instrument and check X4 (backlight
connector).
Backlight connection open or backlight converter
broken.
Connect again, or replace the mainboard or LCD colour
module.