Products > Test Equipment
new killer scope in town - a true game changer from R&S - RTB2002 & RTB2004
nctnico:
--- Quote from: Robaroni on December 08, 2023, 01:42:57 pm ---Thanks for the info.
I tested the encoder, it's pretty basic - push the button you either get an open or a short on the internal switch which I do get. If it's a board problem it would be relatively easy to find if I had the schematic. I guess I could look at it under my stereoscope and see if there's a bad solder point on an FPGA or something, I doubt an ASICs or an FPGA went bad but you never know.
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Problems like these are easy enough to find without a schematic as front panel controls are typically constructed as an x/y matrix using diodes and switches. Just look at the signals to check the logic levels; you can use the oscilloscope itself to test this. It could be something simple like a bad connection or bad solder joint on a diode or something like that. Maybe the problem is already fixed by disconnecting the cable to the front panel and connecting it properly again. I have fixed these kind of problems without having schematics several times.
Robaroni:
The simplest solution is a schematic showing the control pin. Come on R&S this is a six year old machine, I seriously doubt anyone wants to steal your circuits.
Nctnico, I tried the connector trick, I could probably try following the traces but honestly I would rather not unless I have to. I remember when Keysight had actual service manuals, I have few from older stuff. I think there's one around here from the famous 34401A meter now that I think of it. I still use that meter and it's still perfect.
pdenisowski:
@robaroni I'd like to start out by saying that I'm sorry you're unhappy with your service / support interaction. If you'd like, please PM me and I'll send you my direct email address - I can't promise that I can do everything you ask, but I can guarantee that you'll be in touch with someone who is very happy to get your feedback and pass it on to the responsible parties here at R&S.
--- Quote from: Robaroni on December 09, 2023, 12:14:18 pm ---Unfortunately I can't find out because your tech dept. doesn't even have basic schematics that trouble shoot down to board level. It's always been that way? Maybe you shouldn't have told me that, I think end users should have the right to repair with schematics and access to parts, it's not a good omen that your tech dept. doesn't even have schematics.
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Just curious: have you tried getting schematics for current products from Rigol or other T&M instrument manufacturers? I would be very interested in seeing them.
--- Quote from: Robaroni on December 09, 2023, 12:14:18 pm ---So they referred me to your service dept. and it might as well have been a robot, I get it you want me to send my scope in for repair, what's that going to cost? I lost the connection and she never called back or emailed me with costs. I get it again, we're small potatoes.
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Again, please PM me with your information and I will find out what happened and speak to whomever you spoke to. Assuming this is North America, I personally know everyone in our technical support center, and they are all very customer-focused professionals.
--- Quote from: Robaroni on December 09, 2023, 12:14:18 pm ---They worked in a snow storm because they know they're in trouble and have to find solutions, they got upstaged again by China. Maybe they should invite me to their board meeting, I'll be happy to tell them how the bear went through the buckwheat.
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We actually just had a record year :)
I have regular conversations with everyone on our scope team, including product management, sales, marketing, development, etc. I can assure you that any feedback you provide me with will be carefully listened to.
--- Quote from: Robaroni on December 09, 2023, 12:14:18 pm ---So tell me why I shouldn't get a bigger Rigol for my next scope? That's rhetorical..... are you sure you want to have this conversation?
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Yes, I very much want to have this conversation. Feedback from customers (even unhappy customers) is very important to us and drives almost everything we do at R&S. As both someone who has worked in test and measurement for almost 30 years as well as an avid electronics hobbyist, I very much understand your frustration and would also very much like to see if there is something we can do to address it.
Robaroni:
pdenisowski
Thank you for your time and concern, I do appreciate it. The woman in the tech dept. truly tried to help me but she had no schematic and no access, she did however find the board the rotary encoder was on and did pass that on to me although, again, I have no avenue to purchase it if indeed this is the problem. The service dept. was useless.
Here's an example of a current instrument I own, I found the service manual with a simple Google search and copied the link within less than 30 seconds:
https://www.keysight.com/hk/en/support/34465A/digital-multimeter-6-5-digit-truevolt-dmm.html
Direct me to the link for the RTB2004 Service Manual, I have yet to find it.
As for the scope itself, I thought it was buggier than my Tek 2024B, the RTB probes were poor quality and the Tek scope was trouble free. My other instruments from several other major manufacturers have all been more dependable and less buggy than the RTB.
I'd be interested to see how your banner year compared to China's, banner years are relative terms. How many instruments you sold and how well they hold up and perform are two entirely different commodities.
Bottom line would I buy another scope from R&S - no. In fairness I'm semi-retired now so I probably won't make too many more major purchases although I will probably make another scope purchase not counting the backup I just bought.
You said you're looking at the schematic, okay tell me what IC the rotary encoder coarse/fine pin terminates on. Simple, this will tell me if I'm on the right board and I'll know if it's a bad IC or connection.
Thank you for your time and help, again, I do appreciate it.
Hydron:
The front board has it's own firmware - I'd be very confident that the IC reading the inputs is on that board not another.
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