| Electronics > Repair |
| Advantest R3132 Spectrum Analyzer repair information |
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| KarelP:
Thanks for datasheet sbvr4 the markings on the chip are correct and also the function is correct. I think you nailed it . Also thank you for the reply I was under the impression that nobody was reading my posts and that I used the wrong media in my attempt to help fellow Advantest owners. I’m convinced that the problem of VCO frequency drift is happening :-+in all their products using this type of VCO’s and PCB material |
| sbvr4:
No problem. I have two different Advantest units that I am in the process of repairing, which would not be possible without the tremendous contribution both you and Fraser have made regarding these SAs. For what it is worth, I've found the R3265A service manual (link below) to be a huge help as well with clarification of diagnoses. The manual precedes Rohde and Schwarz's acquisition, and is from the golden age of component-level diagnoses. It is split up into 3 parts and includes very detailed block diagrams, troubleshooting techniques and schematics. The theory of operation is fundamentally the same despite the architecture being largely different. http://www.ko4bb.com/getsimple/index.php?id=manuals&dir=Advantest |
| RF_STUDENT:
Thank you for the links to the Advantest R3265A Service manuals and the work you guys have put in. I just purchased a R3265A on Ebay for $700 which I thought was a good deal. |
| fozzyvis:
--- Quote from: KarelP on October 19, 2018, 06:47:32 pm ---Also thank you for the reply I was under the impression that nobody was reading my posts and that I used the wrong media in my attempt to help fellow Advantest owners. I’m convinced that the problem of VCO frequency drift is happening :-+in all their products using this type of VCO’s and PCB material --- End quote --- Karel, be assured that your posts (and those) of Fraser are very valuable for others. I have a r3132 with similar issues that (once I have more spare time) I need to look into. For sure the information from both of you will be very valuable... Greetings from Ghent ;) |
| ARF:
I'll update the topic. Recently I've got the R3132 and it doesn't boot. The screen does not initialize. Did a quick look: - supply voltages are OK. - the capacitors on the processor board are OK. - battery was replaced (it should not affect the booting) - I tried to connect another CF card with firmware. - I tried to connect an external display - the problem is definitely in the processor board. - LEDs on the processor board light up. Their meaning is unknown. |
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