Be careful, there are five spacer washers on the shaft under the panel. Remove encoder module from the instrument. The encoder module plastic body snaps apart. Gently pull apart the two top tabs while pulling the rear cover off. Encoder Pin Out: 1. GND Black 2. OUT Phase 1 3. OUT Phase 2 4. Be careful with the semi-rigid coax. Do not over tighten. This procedure is to restore operation of an inoperable cursor knob on a HPA Network analyzer.
Remove cursor knob. DO NOT remove the shaft nut yet. Remove top and bottom plastic filler strip top and bottom if present. Slide towards the rear and lift up. Re-install encoder and reassemble the instrument in the reverse order. But dam the kits are expensive! Yeah the price of these Newscope displays is the reason i haven't put one of them in my HP B.
They look great, but the price of it is hard to justify when my CRT still works fine. Just a general note to A owners. Should you ever want to go through the adjustments procedures and calibrate your unit especially the input boards , use the procedures given in the B service manual PDF.
The adjustments in the A manuals, both printed and PDF, are incomplete and in the wrong order! This is true of all revisions of the A service manual. The following users thanked this post: edavid , bson. Quote from: precaud on June 14, , pm. Factory - the worlds smallest factory. Calvin Regular Contributor Posts: Country:. It looks as if the connectors to and from the coaxial relay B and the directional Bridges are all of the SMA female type.
Is that true? Are those only required for useage of the VNA alone? As alternative DIY-Setup What a whopper. Same as B but with only 1 second gate time. Electronic Counter 10Hz to kHz. Electronic Counter. Frequency Counter 0. Video Amplifier Can be used with B to increase sensitivity. Time Interval Unit, 1us to days. Transfer Oscillator to MHz.
Tuned output cables for A. Service Manual. RF Sig Gen 1. RF Sig Gen 3. RF Sig Gen 5. RF Sig Gen 8. RF Sig Gen Swept 8. Sweep Oscillator 8GHz to Power Supply V, 75mA, and 6. Power Supply V, mA. Klystron Power Supply V, 50mA. Power Supply 30V, mA. Power Supply V, 2A. Voltmeter Calibrator. Dual Directional Coupler to MHz. Universal probe carriage. Spectrum Analyzer Display Section. Manual SNP Calibration Service Note A Power Supply V, 0.
Quartz Crystal Oscillator. Op and Service Manual. Carrier Noise Test Set. Phase Noise Interface. Service-1st-Edition Service-3rd-Edition. Spec Sheet. Time Domain Reflectometer for A.
Sampler DC to 18 GHz. Delay Generator: Provides the model A Oscilloscope with delayed sweep. Frequency Synthesizer 0. Digital Multimeter. Measurement System. Forgot password? Enter your email address and check your inbox. Please check your email for further instructions.
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