Tektronix RSA3303A Service Manual page 218

Troubleshooting
Notes for Changing Modules or Parts
6- 84
When you change the following parts or modules, readjustment and/or recalibra-
tion are necessary. For details, refer to Adjustment Procedures.
RF3 Module
H You need to change the gain and offset values of YTO Tune DAC in the
DEBUG menu. You can find the gain and offset values in a label located on
the RF3 module.
H You must calibrate IF flatness, RF gain, and RF flatness for RF1, 2, and 3
bands.
RF2 and RF5 Modules
H You must calibrate IF flatness, RF gain, and RF flatness for RF1, 2, and 3
bands.
A10 A/D Board
H You must calibrate baseband gain and baseband flatness.
H You must calibrate IF flatness and RF gain for RF1, 2, and 3 bands.
H You must calibrate IQ gain.
Step Attenuator 1 and 2
H You must calibrate baseband gain.
H You must calibrate RF gain and RF flatness for RF1, 2, and 3 bands.
Programmable Band-pass Filter (YTF)
H You need to change the gain and offset values of YTF Tune DAC in the
DEBUG menu. You can find the gain and offset values in a label located on
the YTF module.
H You must calibrate RF gain, IF flatness, and RF flatness for RF2 and 3
bands.
A100 Interconnection Board
H You must calibrate RF gain for RF1 band.
Hard Disk Drive
H Full calibration is necessary because the cal factors are lost.
H Attach a new Windows license label.
RSA3303A & RSA3308A Service Manual