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GB for RTX6001 Audio Analyzer with AK5394A and AK4490

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#522
cddumat said:
Hello Jens, i do think as well that most of the participants here should be very capable to do so. My only question would be if warranty would be affected by this mod performed by users.

Regards, Clemens
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Hi Clemens,

Unless there is clear evidence of improper handling of the unit, doing the modification should not affect the warranty. You should of course be careful with ESD.
 
#525
Ghianni said:
@ JensH, Two simple questions:

-How to disassemble/assemble the unit safely. No instructions have been given in the "pdf".
-Would the unit be needed re-calibration after the mod applied?
Click to expand...

I will put together an instruction for disassembly/assembly. It is not difficult, but there are a couple of details to be aware of.

No, it will not require re-calibration. The modification does not influence the main signal path.
 
#527
JensH said:
Modifications are ongoing at the moment. Shipment will resume by Monday next week.

For those who have already received their RTX6001, I have made a description of the modifications needed to improve the distortion at high input levels.

Please take a look at it and report back if this is something you feel that you are able to do yourself. If so, we will send two mounted PCB's for each Analyzer.
I assume most people on this forum will be able to do the modification, avoiding shipping the unit back and forth. Using a solder iron with a fine tip will be an advantage.
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Two small soldering irons (applied simultaneously) will remove a resistor much more easily and helps avoid overheating the PCB pads.
 
#528
What size of wire?
0.2mm diam strand from stranded cable?

I have many enamelled copper diameters, but they need to be cleaned at the ends. A real chore with small diameters.

Would an insulated 0.6mm diameter do for the very long wire connection?
 
#530
We will probably send along some wires that are cut to length and with solder applied to the ends. I need to confirm that Monday, but I think this will be the best way.
We use very thin wires, which avoids stress on the tiny solder pads. 0.6 mm sounds like a very rigid wire.

I agree that if you use two soldering irons simultaneusly, it is very easy to remove the resistors. Unless of course, you have a dedicated tool for that (I don't).
 
#533
I cannot give you an exact price. As stated in the first post:

Once the items are ready for delivery, you will receive a payment notification by email with bank account information and total price. Prices will be converted at that date to EUR for customers within the EU and DKK for customers in Denmark.
 
#535
Looks to me that what is commonly called wire wrap wire is ideal.

also looks like my cold came at the perfect moment to prevent me from doing anything, like sending my money in, so I get it reworked from the factory. (I'd rather trade doing the work for the cold, oh well, silver linings and all that)

Cheers
Alan
 
#540
JensH said:
A mail was sent on November 24. I have asked Lene to re-send the mail.
Could you give me your email address in a PM, just to make sure we got it right?
Jens
Click to expand...

Just got it. Thanks. I'm pretty sure last one didn't go through since my phone will always inform me new mails. I checked the spam folder and did not find anything from RTX either. Will make the wire transfer soon.

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