Your Digital Media Has Never Looked So Good

 
Donald
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Distorted display

Tue Mar 21, 2006 11:19 am

Ver. 2.0.35 Rev.A

Finally got an HDTV and I'm noticing that all video emanating from the HD1000 is distorted. The menus, photos, and video playback all have a very slight warbled distortion.

This is a 1080p television and using both the 720p and 1080i component output have the same effect with no discernable degradation otherwise.

DVD playback pass through the HD1000 does not have this problem, it's perfectly distortion free so it's not the cabling.

Any ideas?

Donald
 
swingnstar
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Location: River Falls, Wisconsin, USA

Thu Mar 23, 2006 5:27 pm

I am not a video expert and may very well be wrong, but "fools go where angels fear to tread" so...
My Sony rear-projection TV is rated to do 480P, 780, and 1080i. The ROKU on 1080 is wavy as you describe. So my assumption is that while the TV can do it, it does not do it well. My TV display looks really good with the ROKU set to 780. So that's what I do.
Your DVD player does 480, I believe. Try a lower setting, like 480P, if you are using component cables.
If this works, it may be the best your TV will do. If you feel it should do better, maybe contact tech support for the TV or the place where you bought it.
Best of luck.
 
Donald
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Mon Mar 27, 2006 3:30 pm

I was thinking that this may be a symptom of a power supply problem as I have seen this display behavior in other devices where bad power was evidenced by this warbled wavy distorted display on monitors.

I unplugged Roku for the first time in several months and after re-plugging, alas, it, is, no more. Nothing. No green light. Nada. I theorize this one thermal cycle was all it took to loosen whatever.

How hard is it to rig a power supply to this thing?

What else can I use to watch my network videos, listen to cds?

Grieving...

Donald
 
chackett
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Mon Mar 27, 2006 4:58 pm

Donald wrote:
How hard is it to rig a power supply to this thing?

Donald

There's a long thread on this subject with lots of info:
http://www.rokulabs.com/forums/viewtopic.php?t=2261
General consensus seems to be that it's not very hard.
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Donald
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Mon Mar 27, 2006 6:09 pm

chackett wrote:
There's a long thread on this subject with lots of info:
http://www.rokulabs.com/forums/viewtopic.php?t=2261
General consensus seems to be that it's not very hard.


Thank you sir!

I've browsed the PS solutions, I'm doin' it.

Whille I was feeling the Roku up for any warmth or other signs of life I put my ear to it to listen for any hum. I heard ticking. Ticking like my old 1972 Timex...What makes it tick?

Donald
 
Donald
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Tue Mar 28, 2006 9:12 am

I've opened 'er up and I can see what's making the ticking sound. It's a green LED on the powerboard flashing on and off about twice a second. What it means? No clue...

I'm heading over to http://www.rokulabs.com/forums/viewtopi ... &start=120 to wrap this up...

Donald
 
dgburns
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Tue Mar 28, 2006 10:10 pm

Donald wrote:
It's a green LED on the powerboard flashing on and off about twice a second. What it means? No clue...

Sounds like a power supply in "crowbar" or some other overload protection. Does it do this with nothing but the power cord connected?
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PS/2
 
Donald
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Thu Mar 30, 2006 9:39 am

dgburns wrote:
Does it do this with nothing but the power cord connected?


Nothing but!

Donald
 
dgburns
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Thu Mar 30, 2006 12:31 pm

It's a switching power supply, so the tick you hear is probably the "switching" happening but something connected (or the PS itself) is overloading the supply and it "switches" off. Just a guess. But, it doesn't sound good.

I don't recall off top of head of the PS connection to main board is socketed or not? I've never opened mine as it's still under warranty. If it's socketed, and you can unplug it, and it stops ticking, I'd say something is wrong with the main board. But again, just guessing (to stimulate dialog by those who might REALLY know!).
HD-1500 RevB #1 (media room)

Mitsubishi WD-62528 62" LCD RPTV

Kenwood VR-407 receiver w/PSB Alpha's

PS/3 60GB (now 250GB) w/750GB Seagate ext

M1000 (upstairs)

HD-1000 RevB #2 (bedroom)

Visco 32" LCD

AR 2.1 audio system

PS/2
 
Donald
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Thu Mar 30, 2006 2:09 pm

dgburns wrote:
If it's socketed, and you can unplug it, and it stops ticking, I'd say something is wrong with the main board.


I unplugged it and after connecting the power the LED flashes faster, a lot faster, about ten times a second. I hope the main board is still ok...

Anyway most of the capacitor ends are bulging on the powerboard and one has stuff coming out the top.

This is my second HD1000. It's two years old. My first one died at two weeks of age under suspiciously similiar circumstances...
 
dgburns
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Fri Mar 31, 2006 2:33 pm

Donald wrote:
dgburns wrote:
If it's socketed, and you can unplug it, and it stops ticking, I'd say something is wrong with the main board.


I unplugged it and after connecting the power the LED flashes faster, a lot faster, about ten times a second. I hope the main board is still ok...

Anyway most of the capacitor ends are bulging on the powerboard and one has stuff coming out the top.

This is my second HD1000. It's two years old. My first one died at two weeks of age under suspiciously similiar circumstances...


WELL, from that, I'd say definately the power supply is shot. The LED blinks faster cause there's no load with the mainboard disconnected. Bulging and leaking caps, that's the problem. The beefier external power supply in the "DOA" thread >SHOULD< fix you up if you're handy enough to give it a try. Sure hope the PS didn't take out the main board too... :(
HD-1500 RevB #1 (media room)

Mitsubishi WD-62528 62" LCD RPTV

Kenwood VR-407 receiver w/PSB Alpha's

PS/3 60GB (now 250GB) w/750GB Seagate ext

M1000 (upstairs)

HD-1000 RevB #2 (bedroom)

Visco 32" LCD

AR 2.1 audio system

PS/2
 
Donald
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Fri Mar 31, 2006 2:51 pm

dgburns wrote:
[The beefier external power supply in the "DOA" thread >SHOULD< fix you up if you're handy enough to give it a try. Sure hope the PS didn't take out the main board too... :(



Power supply replaced - HD1000 lives - distortion gone - more later...

Donald
 
dgburns
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Joined: Mon Jun 27, 2005 9:37 am

Fri Mar 31, 2006 10:26 pm

Donald wrote:
dgburns wrote:
[The beefier external power supply in the "DOA" thread >SHOULD< fix you up if you're handy enough to give it a try. Sure hope the PS didn't take out the main board too... :(



Power supply replaced - HD1000 lives - distortion gone - more later...

Donald


Hooah! 8)
HD-1500 RevB #1 (media room)

Mitsubishi WD-62528 62" LCD RPTV

Kenwood VR-407 receiver w/PSB Alpha's

PS/3 60GB (now 250GB) w/750GB Seagate ext

M1000 (upstairs)

HD-1000 RevB #2 (bedroom)

Visco 32" LCD

AR 2.1 audio system

PS/2
 
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TheEndless
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Fri Mar 31, 2006 10:45 pm

Donald wrote:
dgburns wrote:
[The beefier external power supply in the "DOA" thread >SHOULD< fix you up if you're handy enough to give it a try. Sure hope the PS didn't take out the main board too... :(

Power supply replaced - HD1000 lives - distortion gone - more later...

Donald

Still planning on updating the blog? I've got it bookmarked ;)

TheEndless
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Donald
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Sat Apr 01, 2006 9:14 am

TheEndless wrote:

Still planning on updating the blog? I've got it bookmarked ;)

TheEndless


Yes yes.

I've got this family - mine I think - and they keep wanting things from me. I'm taking the HD1000 apart again before they wakeup to install a PS switch, I don't want this to be a 24 /7 ionic air filter...

-edit-

PS installed...

Switch installed...

Cooling installed...

And after basically shaking, drilling and beating the be-jebus out of this thing...it's working.

http://rev-a-dead-roku-club.blogspot.com/



Many thanks to:


frequal

http://frequal.com/roku/PowerSupplyRepl ... Guide.html

---and---

olllllo

http://photobucket.com/albums/c345/olll ... G_9470.jpg

Excellent documentation. Wouldn't have tried this without their information.

Donald
Last edited by Donald on Sat Apr 01, 2006 8:20 pm, edited 1 time in total.

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