Rohde & Schwarz SMU200A - Faulty RF Output Signal

Troubleshooting R&S SMU200A
1007.9845.82 3.26 E-6
Faulty RF Output Signal
• Error: Vector Signal Generator supplies no signal or faulty signal at the RF output.
Normal action Error and error cause
RF output is switched on;
Menu RF A(B) RF ON
No RF signal or a signal with insufficient level
is output at the RF output.
 Run internal adjustments (see “Troubleshooting
with Internal Adjustments”)
Following successful internal adjustment, check the
following modules in sequence. Change any
defective modules.
3 GHz path
 Check 3 GHz attenuator
 Check IQOP3 (see “Troubleshooting - Module
IQOP3”)
Check SSYN (see “Troubleshooting - Module
SSYN”)
6 GHz path
 Check 6 GHz attenuator
 Check IQOP6 (see “Troubleshooting - Module
IQOP6”)
 Check IQOP3 (see “Troubleshooting - Module
IQOP3”)
 Check SSYN (see “Troubleshooting - Module
SSYN”)
The signal at the RF output does not have the
entered frequency.
 Run internal adjustments (see “Troubleshooting
with Internal Adjustments”)
 Following successful internal adjustment, check
SSYN A(B) (see “Troubleshooting - Module
SSYN”)