Hello,
I tried to do a firmware upgrade in my NEC PA241W-BK LCD monitor via the USB port recently. Unfortunately, the upgrade failed during the process, and the end result is that the monitor is pretty much dead - it's not turning on.
I called NEC and they stopped servicing this particular model in October 2017. They are also not offering replacement parts for this model anymore.
Since the panel has about 3k hours on it, I'd like to at least try to get it fixed, assuming it would make sense from the financial standpoint.
According to a buddy of mine who diagnosed it, the power board is fine, but the main board needs to be replaced because the main chip (it has the following signature: NDS0002B-LF) is not working. While the chip seems to available, the replacement of just the chip would be cost prohibitive and he prefers to replace the whole board.
The problem is the availability of that part - NEC told us flat out that they don't stock this part anymore here in the U.S.
Looking for some answers to my questions:
1. Google and eBay searches for the replacement main control board don't yield any results. Does anyone know any reputable source in the U.S. that might carry this part, other than NEC?
2. Any idea how/where can I get the service manual for this particular model of monitor?
3. From what I understand, brand new replacement board needs to be programmed (I was able to locate one in Europe, and I'm trying to see if I can get it shipped to the U.S.). Is that done using the USB cable and the firmware update software (just like the one that failed me), or is it more complicated process that involves special hardware/software?
4. Would chip programming be required also in case of installing a main board that has already been used in another monitor (same model)? I've located another PA241W-BK monitor available for sale (it's working, but it's definitely much more heavily used than mine), so was contemplating purchasing it and just swapping out the boards. Do you think that swapping out the boards would work, or would some additional steps be necessary (like the chip programming)?
I apologize if some of them are very basic ones, but I'm trying to educate myself to determine what would make the most sense.
Please advise.
Thanks,
Dave
I tried to do a firmware upgrade in my NEC PA241W-BK LCD monitor via the USB port recently. Unfortunately, the upgrade failed during the process, and the end result is that the monitor is pretty much dead - it's not turning on.
I called NEC and they stopped servicing this particular model in October 2017. They are also not offering replacement parts for this model anymore.
Since the panel has about 3k hours on it, I'd like to at least try to get it fixed, assuming it would make sense from the financial standpoint.
According to a buddy of mine who diagnosed it, the power board is fine, but the main board needs to be replaced because the main chip (it has the following signature: NDS0002B-LF) is not working. While the chip seems to available, the replacement of just the chip would be cost prohibitive and he prefers to replace the whole board.
The problem is the availability of that part - NEC told us flat out that they don't stock this part anymore here in the U.S.
Looking for some answers to my questions:
1. Google and eBay searches for the replacement main control board don't yield any results. Does anyone know any reputable source in the U.S. that might carry this part, other than NEC?
2. Any idea how/where can I get the service manual for this particular model of monitor?
3. From what I understand, brand new replacement board needs to be programmed (I was able to locate one in Europe, and I'm trying to see if I can get it shipped to the U.S.). Is that done using the USB cable and the firmware update software (just like the one that failed me), or is it more complicated process that involves special hardware/software?
4. Would chip programming be required also in case of installing a main board that has already been used in another monitor (same model)? I've located another PA241W-BK monitor available for sale (it's working, but it's definitely much more heavily used than mine), so was contemplating purchasing it and just swapping out the boards. Do you think that swapping out the boards would work, or would some additional steps be necessary (like the chip programming)?
I apologize if some of them are very basic ones, but I'm trying to educate myself to determine what would make the most sense.
Please advise.
Thanks,
Dave
just kidding, good to here you have it working.
But today, I’m making an exception here. Why? No idea. Perhaps only because the repair details are still “fresh” in my head… which is ironic, given this is a 16 year old monitor that hardly anyone will care about today. It is new to me, though. 
I picked it up last November from someone on my local Craigslist. It wasn’t very close to where I live, but was close to a family friend that I had to go visit anyways. So after watching the posting on Craigslist for a few weeks and seeing it getting...
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