Official NAD T 757 AV Upgradeable Surround Sound Receiver Thread - Page 10 - AVS Forum | Home Theater Discussions And Reviews
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post #271 of 341 Old 10-04-2015, 08:46 AM
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I just setup a NAD T 758 and I am having an issue with Audyssey. The front left speakers distance and crossover are WAY off, even when I have the right speaker playing during the left speaker test. I have swapped speakers, moved the mic around, reset the receiver and nothing I do helps. The first time I ran Audyssey everything was fine but I decided to move the speakers around and run it again, now it is consistently off. I want to try to reapply the 1.44 firmware but I can't find a download of it anywhere. Any suggestions?
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post #272 of 341 Old 10-07-2015, 02:49 PM
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Firmware update tool

Firmware update tool for TXX7 and T758: www . fluii.dk/TXX7_T758_upgrade_17_20140402.zip

Use at your own risk!

(remove space in link, because i'm not able to post real link)
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post #273 of 341 Old 10-07-2015, 03:22 PM
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Quote:
Originally Posted by Fluii View Post
Firmware update tool for TXX7 and T758: www . fluii.dk/TXX7_T758_upgrade_17_20140402.zip

Use at your own risk!

(remove space in link, because i'm not able to post real link)
Thanks! Much appreciated.
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post #274 of 341 Old 11-26-2015, 05:34 AM
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I just picked up a new (factory refurbished) T758 yesterday and read through this thread. Interesting stuff, for sure.


When I installed my new unit, I set it up as 5.1 and the rear surround channels to bi-amp the L-R mains. The speakers were all set to small and crossover level to 80Hz. O then ran the basic Audessey that it comes with and checked the results. It nailed the speakers as all within +/- 1dB, except the sub which is up @ +7. I manually knocked it back to +3dB because it did seem a little over the top.


Now with having gone thru that and in consideration of the unit coming from an authorized NAD dealer in a sealed, factory-packed box with all the bits & bobs in the plastic baggies, should I be concerned about a firmware version? This thing sounds GREAT, and a noticeably warmer yet accurate and clear sound profile than the Anthem MXR510 I'd auditioned the day before. Absolutely better than my outgoing Denon AVR-1912 in every way, sonically. Very happy.


How does one check the firmware version loaded, and is the RS-232 port the only way to update if it's not current?
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post #275 of 341 Old 01-12-2016, 01:09 AM
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Quote:
Originally Posted by Fluii View Post
Firmware update tool for TXX7 and T758: www . fluii.dk/TXX7_T758_upgrade_17_20140402.zip
Use at your own risk!
(remove space in link, because i'm not able to post real link)

Did the update on my 757v2 yesterday: the Main and Video firmware were outdated, while the DSP was the same version.

After the update was successful, I did a hard reset as recommended.

I then proceeded to re-do the setup, which is a real PITA, and noticed straight away that based on the different presets, the volume level indicator is at a different position. For example, on my 5.1 present, the volume at -44dB is around the middle, but on my stereo-only preset, this is around 1/3 of the indicator bar. I'm fairly sure this was not the case before.

HDMI switching also appears to be a bit more elegant, previously there used to be momentary green screen when switching my set-top box on & off, this does not happen any more.

Power on with my Samsung remote also does not work (someone posted it would), maybe I should re-do the remote control setup on the TV to see if it works.

feedback from anyone else on this update?

Setup: Cambridge Audio CXR200, PSB Imagine T2 towers (bi-amped), PSB Image C5 centre, Monitor Audio Bronze FX surrounds (bipole), Velodyne Impact 10 sub

Last edited by nakkiran; 01-12-2016 at 01:42 AM.
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post #276 of 341 Old 01-13-2016, 01:49 AM
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Originally Posted by KenM10759 View Post
When I installed my new unit, I set it up as 5.1 and the rear surround channels to bi-amp the L-R mains.

Ken, please will you detail how you did this, thanks.

Setup: Cambridge Audio CXR200, PSB Imagine T2 towers (bi-amped), PSB Image C5 centre, Monitor Audio Bronze FX surrounds (bipole), Velodyne Impact 10 sub
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post #277 of 341 Old 01-13-2016, 04:29 AM
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It's in the owner's manual. I don't recall much of the details but it's simple from the main on-screen menu. You go into the section for "Amplifier Setup" and there's a toggle for selecting three possible options, "Main Back" for rear surround duties (default), "Main Front (Bi-Amp)" or "Zone 2".


Choose Main Front and hook up the wires from rear surround to the other set of terminals on you speakers, pay close attention to how your PSB speakers want the jumper arranged or removed.


If at all worried you might screw something up, don't bother. It's really no worthwhile advantage. A separate, more powerful power amp for the front mains and using the preouts from the receiver is far more effective.
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post #278 of 341 Old 01-13-2016, 04:39 AM
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Quote:
Originally Posted by KenM10759 View Post
It's in the owner's manual. I don't recall much of the details but it's simple from the main on-screen menu. You go into the section for "Amplifier Setup" and there's a toggle for selecting three possible options, "Main Back" for rear surround duties (default), "Main Front (Bi-Amp)" or "Zone 2".
Choose Main Front and hook up the wires from rear surround to the other set of terminals on you speakers, pay close attention to how your PSB speakers want the jumper arranged or removed.
If at all worried you might screw something up, don't bother. It's really no worthwhile advantage. A separate, more powerful power amp for the front mains and using the preouts from the receiver is far more effective.

Yep, setting the amp is the easy part, wiring up the speakers is what I was not too clear about. However, I found a nice explanation on YouTube courtesy of Onkyo, so that's sorted.

Are you saying it makes no difference to the sound? What about the amp efficiency? My thinking is that by using 2 amps to power the speakers, the AVR will be under less 'strain'?

Setup: Cambridge Audio CXR200, PSB Imagine T2 towers (bi-amped), PSB Image C5 centre, Monitor Audio Bronze FX surrounds (bipole), Velodyne Impact 10 sub
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post #279 of 341 Old 01-13-2016, 04:44 AM
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Originally Posted by nakkiran View Post
Yep, setting the amp is the easy part, wiring up the speakers is what I was not too clear about. However, I found a nice explanation on YouTube courtesy of Onkyo, so that's sorted.

Are you saying it makes no difference to the sound? What about the amp efficiency? My thinking is that by using 2 amps to power the speakers, the AVR will be under less 'strain'?

You'd be using more of the total available power of the NAD receiver to bi-amp, and where you need more power the most (high volumes) you can't magically get more watts than the receiver can give now.


Yes, definitely a second amp takes the load of the most demanding speakers in a 5.1 system (or most any), the main front pair. That would allow your remaining speakers to go just a wee bit louder or the receiver to run just a little cooler.
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post #280 of 341 Old 01-18-2016, 01:49 AM
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Got a new PSB Image C5 centre speaker and also got AudioQuest cables. Spent the day re-wiring and adding banana plugs. I also bi-amped the fronts.

C5 turned out to be too heavy for the glass shelf, so I had to move the PS3 up and the AVR to the right. This is temporary until my new AV stand is built.











Setup: Cambridge Audio CXR200, PSB Imagine T2 towers (bi-amped), PSB Image C5 centre, Monitor Audio Bronze FX surrounds (bipole), Velodyne Impact 10 sub
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post #281 of 341 Old 02-02-2016, 04:24 AM
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Originally Posted by nakkiran View Post
Power on with my Samsung remote also does not work (someone posted it would), maybe I should re-do the remote control setup on the TV to see if it works.

happy to report that Power ON now works for the AVR after re-doing the ARC setup on my TV

Setup: Cambridge Audio CXR200, PSB Imagine T2 towers (bi-amped), PSB Image C5 centre, Monitor Audio Bronze FX surrounds (bipole), Velodyne Impact 10 sub
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post #282 of 341 Old 02-02-2016, 04:39 AM
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That's a pretty setup. With the PSB speakers being rear ported, is it an issue being right up against a wall or do you have the ports plugged?

I have my KEF R500 speaker setup as bi-amped from my T758 and can tell you it makes very little to no difference. Perhaps when I listen in 2.1 I can get just a little more out of the highest volumes and avoid protection mode, but clearly there's more marketing hype to this than substance. I know if I simply want more power to the front mains the right approach is using the pre-outs of the receiver to a 150w or better amp.

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post #283 of 341 Old 02-02-2016, 04:46 AM
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Originally Posted by KenM10759 View Post
That's a pretty setup. With the PSB speakers being rear ported, is it an issue being right up against a wall or do you have the ports plugged?

TBH, I haven't tried playing with the port plugs, although I know I should, because the confined space can make the bass very 'boomy'.

On some music, the bass sounds very punchy/boomy instead of smooth, in which case I switch to a preset of F+R+sub crossed over 60Hz, and that seems to do the trick. I guess that really depends on the quality of the recording - some stuff from HDtracks plays amazingly well just as F+R.

I really love the flexibility of the NAD AVR: being able to switch speaker presets on the fly is a great feature!

you are quite right about the bi-amping, I haven't really noticed a difference. The cables & banana plugs did make a small improvement.

Setup: Cambridge Audio CXR200, PSB Imagine T2 towers (bi-amped), PSB Image C5 centre, Monitor Audio Bronze FX surrounds (bipole), Velodyne Impact 10 sub
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post #284 of 341 Old 03-25-2016, 06:59 PM
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I am not sure I am in the right forum. I want to upgrade my t757 to make it 4K compatible. Which VM should I get?
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post #285 of 341 Old 03-25-2016, 07:02 PM
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I contacted NAD about the 4k module for the T758 and they said it is not available and will be out "soon". I'm not sure if that applies to the T757 as well.
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post #286 of 341 Old 03-25-2016, 07:47 PM
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Yes, it would apply to the T758 and T757. And when NAD says soon, you can bet that means "whenever we feel up to it" and not a moment sooner.

They indicated to the dealer I bought my T758 from (Spearit Sound) that it would be in spring 2016, but I wouldn't bet the farm on it or hold my breath waiting. Rather, it should be right around the same time the new 8K TV's start shipping for the masses.

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post #287 of 341 Old 08-07-2016, 09:38 PM
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Greetings -

My T757v2 was working great until the other day when all sound stopped and there is now just a really faint sound of the source from the center channel, and it is not impacted by changing the volume control. The other speakers crackle/pop sometimes when adjusting the volume but nothing else.

I did a factory reset and updated the firmware to the latest version on the site, v1.44, followed by another reset. No change.

Is there anything else I can try or should I weigh repair costs vs a different receiver? Kind of bummed at my luck as my prior receiver was an Onkyo TXNR-709 with the bad HDMI board causing no sound as well - fixed under the extended warranty program and then sold on Craigslist.

Currently back on my old Denon 1611 until I decide what to do...not great but not bad, but really liking being back on real Audyssey for MultEQ.

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post #288 of 341 Old 08-08-2016, 04:14 AM
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Everyone is different but I can tell you that when my T758 fails I will have saved up enough money to get into the Anthem MRX series. I'm happy with the sound out of my NAD and it's been reliable, I just wish I had actual Audyssey MultEQ of some sort. The fact that NAD tells me I can have it if I upgrade to the AM200 module and pay Audyssey some $600 doesn't make economic sense to me. That would total almost another $1000 into this receiver and if I had paid retail for the unit (mine is a refurbished) that would be a complete unit from Anthem with all the room correction/equalization tools I could ever want, arguably better then Audyssey. I'd rather spend the money for a complete package that's engineered as a single unit.

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post #289 of 341 Old 08-08-2016, 11:53 AM
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Quote:
Originally Posted by KenM10759 View Post
Everyone is different but I can tell you that when my T758 fails I will have saved up enough money to get into the Anthem MRX series. I'm happy with the sound out of my NAD and it's been reliable, I just wish I had actual Audyssey MultEQ of some sort. The fact that NAD tells me I can have it if I upgrade to the AM200 module and pay Audyssey some $600 doesn't make economic sense to me. That would total almost another $1000 into this receiver and if I had paid retail for the unit (mine is a refurbished) that would be a complete unit from Anthem with all the room correction/equalization tools I could ever want, arguably better then Audyssey. I'd rather spend the money for a complete package that's engineered as a single unit.
Are you sure NAD wasn't quoting you a price to have an installer set up Audyssey MultiEQ Pro? The AM200 card by itself has Audyssey MultiEQ XT with nothing additional required, but it has the option of the Pro version (which requires a licensed installer, or buying the extra kit yourself).

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post #290 of 341 Old 08-08-2016, 01:17 PM
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I believe you're right, the $600 was for Audyessy Pro. I was unaware that the AM200 module came with MultEQ XT, but what we should really be getting is MultEQ XT32 with subwoofer calibration. That's what the better Denon/Marantz units have standard and it's ideal for most home theater applications.

Myself, I'm not giving NAD any more of my money beyond the $200 (half price) upgrade that was supposed to be available by now for the 4K module. I may opt out of that and just move to Anthem. I tested an MRX710 and thought it was a GREAT match to my KEF R series speakers.
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post #291 of 341 Old 08-09-2016, 07:46 AM
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I've recently switched to an Arcam AVR380, could not believe the difference in the quality of the sound!!!

First impressions, right out of the box: very intuitive menu, much easier to navigate and setup than the NAD.

And the sound... better, much better than the NAD when it comes to sound clarity. Now I haven't even done any Audyssey setup, simply crossover at 80Hz. It just so happened that War of the Worlds was playing on DSTV when I switched it on and the 5.1 sound (which is not that great on DSTV) was obviously way better than it had been on the NAD.

Switched to the PS3 and started playing Sicario, and again, some of the sounds from the opening 5 minutes I'd never heard before (same DTS copy). And then the clincher was the Apocalypse Now opening scene, which again was showing some new sounds.

I then played some of my favourite FLAC files (Mark Knopfler, Manu Katche, Eagles), and again, in standard stereo mode the sound was perceptibly clearer, 'cleaner', more detailed. There were trombone notes on the Manu Katche set that I had not heard before that were now jumping out.


What I miss on the Arcam compared to the NAD:

It doesn't have on-the-fly speaker/config modes like the NAD does, which makes it incredibly easy to switch speaker setups. On the Arcam one has to open the menu, fiddle around, etc.

The source switching is also not very quick, there's a 1-2s delay when switching from DSTV to PS3, etc.

ARC switching is a problem when switching the TV on. The T757 also had the same issue until the latest firmware update.

Setup: Cambridge Audio CXR200, PSB Imagine T2 towers (bi-amped), PSB Image C5 centre, Monitor Audio Bronze FX surrounds (bipole), Velodyne Impact 10 sub
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post #292 of 341 Old 08-09-2016, 10:26 AM
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I would miss that little round button to change output modes and the source selection up-down button on my remote. In modes I might miss the "Enhanced Stereo" mode that I sometime use when I'm not in the sweet spot and want to hear my R100 surrounds. I think it sounds better than the Dolby and Neo modes.

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post #293 of 341 Old 08-16-2016, 06:01 AM
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Is there any way to talk to a live human being from NAD for technical support? I bought an OLED tv and HDR blu-ray player. I now have a non-4K AVR. I want to set it up for optimal AV. I want to know how to connect the HDMI cables and what settings I should adjust on the NAD.
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post #294 of 341 Old 08-16-2016, 06:20 AM
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I wish there was such a person to talk to there, but there isn't. They do respond to the "contact us" thing reasonably quick, but answers usually aren't what you want.

Which NAD receiver do you have? I was at my dealer recently and made some comment about getting an NAD T758 back in late November 2015 with the promise of a 4K capable MDC upgrade soon, for $200. It's still not out there, though he said NAD is soon to update their whole line to add BlueOS to everything and trickle-down some of the technology in the Master series down to the "classic" line. And the 4k MDC will be out "really soon." I'll count that chicken when it's on my plate.

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post #295 of 341 Old 08-16-2016, 03:13 PM
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Quote:
Originally Posted by atlantasteve View Post
Is there any way to talk to a live human being from NAD for technical support? I bought an OLED tv and HDR blu-ray player. I now have a non-4K AVR. I want to set it up for optimal AV. I want to know how to connect the HDMI cables and what settings I should adjust on the NAD.
Since there are no MDC cards yet that support 4K, I would recommend that you use one HDMI output from your 4k UHD bluray player to your TV directly and another HDMI output from the player to the receiver. This is the only way to maintain the 4K. I believe all 4K players currently have 2 HDMI ports.

I was told August is when the new MDC cards will be announced. I have sent an email to my contact at NAD.
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post #296 of 341 Old 08-16-2016, 06:22 PM
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Since there are no MDC cards yet that support 4K, I would recommend that you use one HDMI output from your 4k UHD bluray player to your TV directly and another HDMI output from the player to the receiver. This is the only way to maintain the 4K. I believe all 4K players currently have 2 HDMI ports.

I was told August is when the new MDC cards will be announced. I have sent an email to my contact at NAD.
Thanks. I also have an Oppo 103. If I Make the same connections with the Oppo, what settings do I need on the NAD to maintain surround sound?
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post #297 of 341 Old 12-06-2016, 12:28 PM
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Did the update on my 757v2 yesterday: the Main and Video firmware were outdated, while the DSP was the same version.

After the update was successful, I did a hard reset as recommended.

I then proceeded to re-do the setup, which is a real PITA, and noticed straight away that based on the different presets, the volume level indicator is at a different position. For example, on my 5.1 present, the volume at -44dB is around the middle, but on my stereo-only preset, this is around 1/3 of the indicator bar. I'm fairly sure this was not the case before.

HDMI switching also appears to be a bit more elegant, previously there used to be momentary green screen when switching my set-top box on & off, this does not happen any more.

Power on with my Samsung remote also does not work (someone posted it would), maybe I should re-do the remote control setup on the TV to see if it works.

feedback from anyone else on this update?
Hi

I have a T187 which I want to update. Downloaded TXX7_T758_upgrade_17_20140402.exe and tried the update using a Mac/VirtualBox/Windows-7 with a USB to Serial adapter (ATEN UC232).
Unfortunately download stoped with error. Now the unit is bricked.

The unit is now being seen as T757 instead of T187 !

Is there a way to recover the unit myself, or I have to send it for repair ?


Here the first log:
\Users\user\Documents\NAD\TXX7_T758_upgrade_17_201 40402\TXX7_T758_upgrade_17_20140402.exe
[2016-12-03 15:25:55]: COM1 selected
[2016-12-03 15:25:55]: COM1 opened
[2016-12-03 15:25:56]: no units found in recovery mode
[2016-12-03 15:25:56]: found T187 on COM1
[2016-12-03 15:25:56]: serial number: K24T187G01218
[2016-12-03 15:25:56]: hardware config: 01000100
[2016-12-03 15:26:08]: build string: T187_PG536M_DAB
[2016-12-03 15:26:08]: main version: v1.39
[2016-12-03 15:26:08]: DSP version: v1.05b
[2016-12-03 15:26:08]: video version: v1.06
[2016-12-03 15:26:45]: user selection: DSP=AM200, Video=VM150, Tuner=DAB
[2016-12-03 15:27:11]: user selection: Video Config = VM150AV,VM150X
[2016-12-03 15:27:46]: start main upgrade
[2016-12-03 15:27:46]: retrieve current user settings
[2016-12-03 15:28:55]: download boot loader error
[2016-12-03 15:30:18]: retry selected
[2016-12-03 15:30:53]: retry canceled

Here the log I get now:
\Users\user\Documents\NAD\TXX7_T758_upgrade_17_201 40402\TXX7_T758_upgrade_17_20140402.exe
[2016-12-06 20:49:26]: Auto Detect selected
[2016-12-06 20:49:26]: COM1 opened
[2016-12-06 20:49:26]: no units found in recovery mode
[2016-12-06 20:49:27]: found T757 on COM1
[2016-12-06 20:49:27]: serial number:
[2016-12-06 20:49:27]: hardware config: 00000000
[2016-12-06 20:49:39]: build string: T757_PG536_XM
[2016-12-06 20:49:39]: main version: v1.41
[2016-12-06 20:49:46]: user selection: DSP=AM200, Video=VM100, Tuner=XM
[2016-12-06 20:50:07]: Auto Detect selected
[2016-12-06 20:50:07]: COM1 opened
[2016-12-06 20:50:08]: no units found in recovery mode
[2016-12-06 20:50:08]: no unit was found
[2016-12-06 20:50:35]: Auto Detect selected
[2016-12-06 20:50:35]: COM1 opened
[2016-12-06 20:50:35]: no units found in recovery mode
[2016-12-06 20:50:36]: found T757 on COM1
[2016-12-06 20:50:36]: serial number:
[2016-12-06 20:50:36]: hardware config: 00000000
[2016-12-06 20:50:48]: build string: T757_PG536_XM
[2016-12-06 20:50:48]: main version: v1.41
[2016-12-06 20:50:52]: user selection: DSP=AM200, Video=VM100, Tuner=XM
[2016-12-06 20:51:00]: start VM100 upgrade
[2016-12-06 20:51:03]: download boot loader error
[2016-12-06 20:52:16]: terminate selected
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post #298 of 341 Old 12-06-2016, 07:37 PM
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I don't know what you should do, though I probably would have contacted NAD about compatibility between a T187 and software that seems to be for a T757 before starting. I've already downloaded that same file.

I picked up the new VM130 for my T758 receiver and now a little nervous about undertaking the upgrade myself. I sure don't want a locked-up receiver.
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KEF R500, R200C, R100, SVS SB2000 sub, NAD T758 receiver, Pro-Ject RPM1 TT w/ Ortofon 2M Red, Bluesound Vault2, Sony BDP-S480 BlueRay player, Samsung UN55JU6500F 4K LED TV, KEF M500 headphones, Sony CDP-CE500 CD changer.
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post #299 of 341 Old 12-09-2016, 08:57 AM
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Quote:
Originally Posted by KenM10759 View Post
I don't know what you should do, though I probably would have contacted NAD about compatibility between a T187 and software that seems to be for a T757 before starting. I've already downloaded that same file.

I picked up the new VM130 for my T758 receiver and now a little nervous about undertaking the upgrade myself. I sure don't want a locked-up receiver.
i could resolve the situation with "Recovery" mode. It seems, my USB Serial Adapter
was the reason why the device was bricked.
I now used an old ThinkPad/Windows-XP, a "real" RS232 hardware.

I got from NAD support a newer Update software and procedure to setup "Recovery Mode":

TXX7_T758_upgrade_18_20150414.exe
Txx7Software Rescue Procedure.pdf

If needed I will upload those.
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post #300 of 341 Old 12-17-2016, 01:18 PM
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Quote:
Originally Posted by aldurbano View Post
TXX7_T758_upgrade_18_20150414.exe
Txx7Software Rescue Procedure.pdf

If needed I will upload those.
Yes, please upload new update software - thanks.
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