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Joined: Jul 2022
Posts: 6
Harmless
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Harmless
Joined: Jul 2022
Posts: 6 |
Hi, I got a 800v4 with a non working/answering DV20 card, have desoldered the AM29LV040 U200 flash and it’s only FF in it then reading out, so I need an EEPROM dump. Haven't found any then searching so hoping that somebody here has one 
G68, HD621, 800v4
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Joined: Mar 2004
Posts: 381 Likes: 34
Hitchhiker
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Hitchhiker
Joined: Mar 2004
Posts: 381 Likes: 34 |
This is very interesting; I have an 800v4DAX where I am unable to establish contact with the DV20 board. I am therefore very keen to learn how to bring the DV20 board back to life. I’m wondering, though, if this affects all the boards or if only one of them has been "bricked."
For reference, the boards in question are the DV02, DV12, and DV20.
TV room: 861v8, 800v4, UHD722,Front 2xDSP7200SE, DSP7200HCSE, Side DSP5200, Rear DSP33, DSW, (DD 15 Sub),
Roon Rock NUC, QNAP NAS, Chromecast Ultra, Apple TV, Oppo BDP-103D, Pro-ject Pre box S2 digital, Philips Pronto remotes, Supra LoRad Power.
Office: 800v3, MS200, DSP3100
Basement: MS600, 502, 557, Dynaudio 52se, Dynaudio Sub 250
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Joined: May 2005
Posts: 836 Likes: 161
Paranoid android
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Paranoid android
Joined: May 2005
Posts: 836 Likes: 161 |
It is very easy to brick a DV02 board!
There is no fail-safe firmware update, and if the update fails halfway through, the board is bricked.
It would be great if someone could design an adapter board for the 48-pin carrier board that Meridian uses to connect it to a standard EEPROM reader.
If that were available, I'd happily pull my working board apart and download the image. I'm just not comfortable desoldering and resoldering the EEPROM from its carrier.
There are different versions of the DV02/DV12 board, so I don't know if there are different firmware revisions.
Drop me a PM if you want to discuss further.
Cheers,
Steve
Main: 861v6 (LPS), 808v6, UHD722, DSP8000SE Anniversaries, DSP5200.2HC, DSP7200.2, SW1600, Sky Q, Cambridge Audio BD, Roon, M80
Office: 861v4 (LPS), 818v3, 800v4, HD621, M&K S150P, DSP5500HC, M&K MPS2810 sub x2
Son's system: 861v4, HD621, DSP6000.2, DSP5200HC, DSP33
Spare: MCD, 100 Series, 200 Series, 500 Series, F80s, C15s.
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Joined: Mar 2004
Posts: 381 Likes: 34
Hitchhiker
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Hitchhiker
Joined: Mar 2004
Posts: 381 Likes: 34 |
You have PM. 
TV room: 861v8, 800v4, UHD722,Front 2xDSP7200SE, DSP7200HCSE, Side DSP5200, Rear DSP33, DSW, (DD 15 Sub),
Roon Rock NUC, QNAP NAS, Chromecast Ultra, Apple TV, Oppo BDP-103D, Pro-ject Pre box S2 digital, Philips Pronto remotes, Supra LoRad Power.
Office: 800v3, MS200, DSP3100
Basement: MS600, 502, 557, Dynaudio 52se, Dynaudio Sub 250
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Joined: Jul 2022
Posts: 6
Harmless
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Harmless
Joined: Jul 2022
Posts: 6 |
This is very interesting; I have an 800v4DAX where I am unable to establish contact with the DV20 board. I am therefore very keen to learn how to bring the DV20 board back to life. I’m wondering, though, if this affects all the boards or if only one of them has been "bricked."
For reference, the boards in question are the DV02, DV12, and DV20. Mine is working but it's problem with the sound and then connecting with putty to the RS232 port is say "Timeout waiting for DSP", so it's only the DV20 board that's is bricked as I see it.
G68, HD621, 800v4
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Joined: Mar 2004
Posts: 381 Likes: 34
Hitchhiker
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Hitchhiker
Joined: Mar 2004
Posts: 381 Likes: 34 |
You have PM.
TV room: 861v8, 800v4, UHD722,Front 2xDSP7200SE, DSP7200HCSE, Side DSP5200, Rear DSP33, DSW, (DD 15 Sub),
Roon Rock NUC, QNAP NAS, Chromecast Ultra, Apple TV, Oppo BDP-103D, Pro-ject Pre box S2 digital, Philips Pronto remotes, Supra LoRad Power.
Office: 800v3, MS200, DSP3100
Basement: MS600, 502, 557, Dynaudio 52se, Dynaudio Sub 250
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Joined: Jul 2022
Posts: 6
Harmless
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Harmless
Joined: Jul 2022
Posts: 6 |
Haven't received any PM 
G68, HD621, 800v4
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