Installation guide

Post-Repair Procedures
Post-Repair Procedures Matrix
4-8
Table 4-7 Adjustments for Assemblies A17 through A29, B1, B2, B3, and
the RF Output Connector
Adjustments
The following adjustments are listed in the order
that they should be performed for proper
calibration.
Self Test should be performed each time that any
assembly is repaired or replaced.
Replaced Assembly
A17 Synthesizer (Option 501, 502, 503, 504) A18 Reference (Option 501, 502, 503, 504) or A18 Reference (Option 501, 502, 503, 504 with Option 1E5) or A18 Reference (Option UNJ or Option 506) A19 Daughterboard A20 Downconverter (Option 501, 502, 503, 504 with Option 300) A21 YTO Driver (Option UNJ or Option 506) A22 Coupler (Option 506) A23 Motherboard A23BT1 Battery A24 Line Module A25 Rear Panel Board A26 Rear Panel LVDS Board (Option 1EM) and A27 Rear Panel SMB Board (Option 1EM) AT1 Electronic Attenuator (Option 501, 502, 503, 504 or Option UNJ) or AT1 High-Power Mechanical Attenuator (Option UNB) and A28 Reverse Power Protection (Option 501, 502, 503, 504 or Option UNJ) A29 DC Blocking Capacitor (Option 506) B1 Power Supply Fan B2 Small Fan B3 Daughterboard/Card Cage Fan RF Output Connector
Self Test X X XXXXXXX X X X XXXXX
Internal Reference Oscillator Calibration X
Analog Bus ADC Calibration X X X X
Pretune Calibration
(Option UNJ or Option 506 Only)
X
Internal Source Calibration X X
VCO Bias Potentiometer Calibration X
Lock Angle Potentiometer Calibration
(Not Used with Option UNJ or Option 506)
KV versus Frequency Calibration
Timebase DAC Calibration X
FM Scale DAC Offset Calibration X X X X
FM Path Offset Calibration X X X X
FM In-Band DAC Offset Calibration X X X X
FM Inverting Amplifier Offset Calibration X X
FM 1/2 Path Ratio Gain Calibration X X
Modulation Source Relative Gain Calibration X X
FM Out-of-Band Calibration
(Not Used with Option UNJ or Option 506)
X X
FM/PM Out-of-Band Calibration
(Option UNJ or Option 506 Only)
XX
FM/PM YO Frequency Compensation Calibration
(Option UNJ or Option 506 Only)
X X
DCFM Calibration X X X
External Input Peak Detector Calibration X
AM Audio Path Offset Calibration X X
Burst Modulator Calibration