BenQ W5700 / HT5550 4K 100% DCI-P3 Projector Announcement and Owner’s Thread - Page 49 - AVS Forum | Home Theater Discussions And Reviews
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post #1441 of 1461 Old 06-26-2020, 04:59 PM
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I have been happy with mine. No issues in 7 months. The iris is noisy as others have stated. Wish Benq could have silenced it a little more. I am projecting on a 120 inch 16:9 screen. The brightness is ok but I would welcome more lumens.
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post #1442 of 1461 Old 06-26-2020, 05:09 PM
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Originally Posted by Csmab9117 View Post
I have been happy with mine. No issues in 7 months. The iris is noisy as others have stated. Wish Benq could have silenced it a little more. I am projecting on a 120 inch 16:9 screen. The brightness is ok but I would welcome more lumens.
Have you tried out Smarteco?
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post #1443 of 1461 Old 06-26-2020, 06:35 PM
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Hi all need some advice. I have a W5700/HT5550 that has developed the following (see photos). I think its a stuck DMD mirror. It could be a dust blob but I dont think so. I am just out of warranty for repair (I did ask benq for some good will but they just directed me to a service center). I have the tools and skills to replace the DMD myself but I am not sure of the part number I need to purchase or a possible supplier. Would anyone be able to advice on this part number for the DMD I need.
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post #1444 of 1461 Old 06-26-2020, 06:42 PM
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Originally Posted by zerothree View Post
Hi all need some advice. I have a W5700/HT5550 that has developed the following (see photos). I think its a stuck DMD mirror. It could be a dust blob but I dont think so. I am just out of warranty for repair (I did ask benq for some good will but they just directed me to a service center). I have the tools and skills to replace the DMD myself but I am not sure of the part number I need to purchase or a possible supplier. Would anyone be able to advice on this part number for the DMD I need.
looks like a hot pixel, stuck in the on position. it probably looks like a little diamond.

I have a stuck pixel (periodically) on my W1070. However, I am able to unstick it by displaying alternating full screen R-G-B patterns, for several minutes. It then seems fine for a while (~month).
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post #1445 of 1461 Old 06-26-2020, 07:09 PM
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Originally Posted by DunMunro View Post
looks like a hot pixel, stuck in the on position. it probably looks like a little diamond.

I have a stuck pixel (periodically) on my W1070. However, I am able to unstick it by displaying alternating full screen R-G-B patterns, for several minutes. It then seems fine for a while (~month).
Thanks for the reply. I have tried that running it again now as I type this so will see. It is annoying that it has happened but I know heat can kill the DMD chips. Any ideas on where to purchase a replacement part or the exact DMD part number. I did come across this part number from the TI store "DLP470TEAAFXJ". Would benq use that as is or would theirs be different.

Last edited by zerothree; 06-26-2020 at 07:25 PM.
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post #1446 of 1461 Old 06-26-2020, 07:38 PM
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Originally Posted by zerothree View Post
Thanks for the reply. I have tried that running it again now as I type this so will see. It is annoying that it has happened but I know heat can kill the DMD chips. Any ideas on where to purchase a replacement part or the exact DMD part number. I did come across this part number from the TI store "DLP470TEAAFXJ". Would benq use that as is or would theirs be different.

Good look with it.

I guess you'd have to get the PN from Benq, although you'd think that TI would know it.
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post #1447 of 1461 Old 06-26-2020, 08:11 PM
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Originally Posted by DunMunro View Post
Have you tried out Smarteco?
No. I only run the lamp in normal since I want maximum lumen output.
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post #1448 of 1461 Old 06-26-2020, 08:19 PM
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Originally Posted by Csmab9117 View Post
No. I only run the lamp in normal since I want maximum lumen output.
SmartEco runs the lamp full when the scene requires it but uses lamp dimming in place of the DI, for better lamp life and no noise from the DI.
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post #1449 of 1461 Old 06-26-2020, 08:28 PM
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Quote:
Originally Posted by DunMunro View Post
Have you tried out Smarteco?
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Originally Posted by DunMunro View Post
SmartEco runs the lamp full when the scene requires it but uses lamp dimming in place of the DI, for better lamp life and no noise from the DI.
Hmmm...I will have to give it a try. Too be honest I just went with normal since most of the online reviews were using it. I didn’t pay attention to the benefits of smart eco in the manual.

Thanks
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post #1450 of 1461 Old 06-26-2020, 09:13 PM
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Hmmm...I will have to give it a try. Too be honest I just went with normal since most of the online reviews were using it. I didn’t pay attention to the benefits of smart eco in the manual.

Thanks
SmartEco has half the contrast of when using the iris. They can't be used at the same time.
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post #1451 of 1461 Old 06-26-2020, 10:22 PM
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Smarteco lamp life is double that of normal mode, so at any given point in it's life the lamp will be brighter in Smarteco.
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post #1452 of 1461 Old 06-26-2020, 11:01 PM
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Originally Posted by DunMunro View Post
Smarteco lamp life is double that of normal mode, so at any given point in it's life the lamp will be brighter in Smarteco.
This projector is not bright to begin with, and I've said this before, I doubt the claim that the lamp at 10 000h in Eco/SmartEco will be half as bright as new.

IMO it's very unlikely that lamps will last up to 7000, even 5000h. I'll wait to be disproven.

Not actually sure how the lamp dimming on this model works, if it's fast enough, but I assume the iris is more effective.
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post #1453 of 1461 Old 06-26-2020, 11:18 PM
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This projector is not bright to begin with, and I've said this before, I doubt the claim that the lamp at 10 000h in Eco/SmartEco will be half as bright as new.

IMO it's very unlikely that lamps will last up to 7000, even 5000h. I'll wait to be disproven.

Not actually sure how the lamp dimming on this model works, if it's fast enough, but I assume the iris is more effective.
The Benq spec is 8000 hrs for Smarteco.

Even on the W1070 owners are reporting 5000-6000 hrs on SmartEco. It seems very probable that given the more aggressive dimming on the Ht5550 that 8000hrs is reasonable.
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post #1454 of 1461 Old 06-26-2020, 11:27 PM
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Originally Posted by DunMunro View Post
The Benq spec is 8000 hrs for Smarteco.

Even on the W1070 owners are reporting 5000-6000 hrs on SmartEco. It seems very probable that given the more aggressive dimming on the Ht5550 that 8000hrs is reasonable.
I think that those are exceptions. The rating is 10 000h. Implied as somehow guaranteed, characteristic for most.

The HT3550 and others is 15 000h for SmartEco, which is even more unrealistic.

I haven't seen any example of over 10 000, partly because not that many people use their projector for that much.
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post #1455 of 1461 Old 06-27-2020, 12:13 AM
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I think that those are exceptions. The rating is 10 000h. Implied as somehow guaranteed, characteristic for most.

The HT3550 and others is 15 000h for SmartEco, which is even more unrealistic.

I haven't seen any example of over 10 000, partly because not that many people use their projector for that much.
HT5550 spec sheet:

Light Source life* Normal 4000 hours, Economic 10000 hours, SmartEco 8000 hours
https://www.projectorcentral.com/pdf...spec_10829.pdf


SmartEco does dim the lamp considerably, when required, but still runs the fan on high. It should give considerably longer lamp life than normal (high) lamp mode.
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post #1456 of 1461 Old 06-27-2020, 12:17 AM
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Quote:
Originally Posted by DunMunro View Post
HT5550 spec sheet:

Light Source life* Normal 4000 hours, Economic 10000 hours, SmartEco 8000 hours
https://www.projectorcentral.com/pdf...spec_10829.pdf


SmartEco does dim the lamp considerably, when required, but still runs the fan on high. It should give considerably longer lamp life than normal (high) lamp mode.
Website says 10 000:
https://www.benq.com/en-us/projector...fications.html

I highly doubt that they will reach this number on a regular basis.

On the HT2050 thread there was a user that got over 8000h, but I think the brightness was well under half, which is what the lamps are rated for.
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post #1457 of 1461 Old 06-27-2020, 01:02 AM
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Originally Posted by noob00224 View Post
Website says 10 000:
https://www.benq.com/en-us/projector...fications.html

I highly doubt that they will reach this number on a regular basis.

On the HT2050 thread there was a user that got over 8000h, but I think the brightness was well under half, which is what the lamps are rated for.
Chris Eberle measured the native black on an HT5550 as .1736 nits. Smarteco was .0809 nits, so the lamp dimmed to ~47% of normal output. Regardless of which figure for lamp life is correct, it should considerably exceed lamp life in normal (high) lamp mode, and at the same time it should exhibit less dimming over time.
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post #1458 of 1461 Old 06-27-2020, 01:44 AM
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Originally Posted by DunMunro View Post
Chris Eberle measured the native black on an HT5550 as .1736 nits. Smarteco was .0809 nits, so the lamp dimmed to ~47% of normal output. Regardless of which figure for lamp life is correct, it should considerably exceed lamp life in normal (high) lamp mode, and at the same time it should exhibit less dimming over time.
A black floor that's 53% lower does not necessarily mean the lamp is at 47% power. Even if this was the case it does not mean that the lamp has a proportional longer life to the amount of power the lamp consumes.

LE:
On my W2000/HT3050 SmartEco claims
Using Economic mode reduces system noise and power consumption by 30%.
Using SmartEco mode reduces system noise and lamp power consumption by up to 70%.
If the Economic or SmartEco mode is selected, the light output will be reduced and result in darker projected pictures.

But with a watt meter the consumption goes down by 30% on Eco, but also by 30% on SmartEco with a black projected image.

That's verifiable false.

it does not mean that the lamp has a proportional longer life to the amount of power the lamp consumes.

LE2:
Total (equivalent) lamp hour = 2.0 x (hours used in Normal mode) + 1.4 x (hours used in Economic mode) + 1.0 x (hours used in SmartEco mode)

The 1.0x seems like an estimate since content can vary in brightness.

But how can the lamp consume 70% at the lowest in SmartEco and Benq claim that it consumes as low as 30%? Something doesn't add up.

For the HT5550 manual it seems to imply that SmartEco and Eco will last 60% more than Normal. I think this is more of a guesswork than accurate estimates.



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post #1459 of 1461 Old 06-27-2020, 02:56 AM
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Originally Posted by noob00224 View Post
A black floor that's 53% lower does not necessarily mean the lamp is at 47% power. Even if this was the case it does not mean that the lamp has a proportional longer life to the amount of power the lamp consumes.

LE:
On my W2000/HT3050 SmartEco claims
Using Economic mode reduces system noise and power consumption by 30%.
Using SmartEco mode reduces system noise and lamp power consumption by up to 70%.
If the Economic or SmartEco mode is selected, the light output will be reduced and result in darker projected pictures.

But with a watt meter the consumption goes down by 30% on Eco, but also by 30% on SmartEco with a black projected image.

That's verifiable false.
You're forgetting that on the W2000 (and any projector that uses Smarteco) that the fan stays on high, so you have a cooler lamp and longer life. On the HT3050 Eberle measured both Smarteco and Eco at .24fl

However, on newer projectors the lamp will dim more than on a W2000/HT3050 and will have a corresponding longer life.
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post #1460 of 1461 Old 06-27-2020, 03:35 AM
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You're forgetting that on the W2000 (and any projector that uses Smarteco) that the fan stays on high, so you have a cooler lamp and longer life. On the HT3050 Eberle measured both Smarteco and Eco at .24fl

However, on newer projectors the lamp will dim more than on a W2000/HT3050 and will have a corresponding longer life.
That does not prove anything, it's still an assumption. Benq's record on this topic is not good.

Just because the lamp in the new models may drop lower than Eco in SmartEco with the same speed fan as Full does not mean that the lamp will last what Benq says. It's a vague estimate. Real life lamp is probably around 5000 hours, but without users on new projectors posting their hours, there's no way to know for sure.

The 10 000 and 15 000 hours on Smart Eco, where the lamp is half it's original brightness, is very unlikely to be the case, in my opinion.
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post #1461 of 1461 Old 06-29-2020, 10:13 PM
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Originally Posted by zerothree View Post
Hi all need some advice. I have a W5700/HT5550 that has developed the following (see photos). I think its a stuck DMD mirror. It could be a dust blob but I dont think so. I am just out of warranty for repair (I did ask benq for some good will but they just directed me to a service center). I have the tools and skills to replace the DMD myself but I am not sure of the part number I need to purchase or a possible supplier. Would anyone be able to advice on this part number for the DMD I need.
As far as I know, BenQ just doesn't sell DMD to end-users for replacement. Maybe you could contact their customer service directly and ask for an OOW service.
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