Contents
1. General Information
Serial Numbers and Repair Information .................
Instrument Variations .........................
HP 85629B Test and Adjustment Module ................
Service Kit ..............................
Electrostatic Discharge ........................
Reducing Potential for ESD Damage .................
Static-Safe Accessories ........................
Returning Instruments for Service ....................
Service Tag ............................
Original Packaging .........................
0 t her Packaging ..........................
Recommended Test Equipment .....................
Sales and Service Offices ........................
2. Adjustment Procedures
.Introduction
.............................
Safety Considerations ........................
Which Adjustments Should Be Performed? ...............
Test Equipment ...........................
Adjustable and Factory-Selected Components ..............
Adjustment Tools ..........................
Instrument Service Position .....................
Using the TAM ............................
Test Equipment ...........................
Adjustment Indicator ........................
Front End Cal (adjustment) ......................
1. High Voltage Power Supply Adjustment ...............
2. Display Adjustment .......................
3. IF
Bandpass
Adjustment .....................
4. IF Amplitude Adjustments ....................
5. DC Log Amplifier Adjustments ..................
6. Sampling Oscillator Adjustment ..................
7. YTO Adjustment ........................
8. LO Distribution Amplifier Adjustment ...............
9. Frequency Response Adjustment ..................
10. Calibrator Amplitude Adjustment .................
11. 10 MHz Reference Adjustment-OCXO (Non-Option 103) ......
12. 10 MHz Reference Adjustment-TCXO (Option 103) ........
13. Demodulator Adjustment .....................
14. External Mixer Bias Adjustment (Non-Option 327) .........
15. External Mixer Amplitude Adjustment (Non-Option 327) ......
l-l
l-2
l-3
l-4
l-4
l-5
l-6
l-6
l-6
l-6
l-7
l-9
1-16
2-l
2-2
2-2
2-2
2-2
2-3
2-3
2-9
2-9
2-9
2-12
2-13
2-15
2-21
2-26
2-30
2-34
2-37
2-40
2-43
2-47
2-48
2-51
2-53
2-56
2-57
Contents-l