| Electronics > Repair |
| Advantest R3132 Spectrum Analyzer repair information |
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| Fraser:
I have enjoyed reading the HP book draft :-+ I was pleased to see a section on the HP calculators that included one that I have... the HP-41C, magnetic card reader and some programming cards. The HP-41C was part of an AGA 7xx series thermal camera kit that I bought. Sadly I am not a collector of HP calculators so that unit will likely end up on eBay. It was interesting to read about the card reader mechanism and the HP-41C though :-+ Fraser |
| smaultre:
Hello i have the same problem with 3172. I couldn't reach 3840MHz on any points of VCO tuning Voltages. When i close the cover any reached generations stops. I only get generation on nearby harmonic that's caused frequency shifting. Is there is any way to test varicaps? I test all the +\- voltage Op amps rails 200,40,20MHz are presents. Its simply stop generating. |
| smaultre:
200,40,20MHz seems Ok.. The diagnostic message says that VATT_H and VCOTUNE are not ok |
| smaultre:
Table of measurements states (points on photo) : "locked" unlocked 1) 10,55V -3,3V 2) 0,3mV 0,3mV 3) -10,06V -10,06V 4) 1,3mV 60mV 5) 4,9V 4,9V 6) 11,29V 11,29V 7) 11,48V 11,48V |
| EE54:
I though I would pitch in as well. I'm repairing an Advantest R3132N SA (same as 3132 but 75 Ohm input) with tracking gen. Unit does not detect input and fail self test. Took the unit apart am I tried to tune the 2nd LO according to the instruction. But I foolishly supplied 11.3V instead of 6V (my 2nd LO is the 1st revision). I measured 3.78 GHz at about -30 to -40 dBm. Gonna try again with the CORRECT voltage of 6V this time. :palm: Man I suck at repairing stuff. |
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