Is my DM800HD Dead? Experts needed!

[JaySTROKE]

Hi all,

Need some expert guidance.

My DM800HD stopped switching on. There is power going to it, fan still working and Ethernet LED's still on. But nothing on LCD and more importantly no TV :mad:

I have stripped it down and removed and cleaned everything. When I try to connect to it via DreamUp it only connects once in every 50 attempts. When it does finally connect it uploads the flash and then stalls. Status - "upload completed, waiting for acknowledge..." I then can't connect to it again for ages, it seems hit and miss.

I like to think I know my way about dreamboxes, but this has me stumped. Is it time to buy a new one, or is there some way of fixing it?

All help and advice greatly appreciated.

[Rodbouy]

Have you tried a new power supply?

[lombard]

have you tried pulling out power and re applying it fast ? try it a few times , have a box that just the same, when i pull power and re apply it works

[JaySTROKE]

Yep several, I don't think it's a power issue.

[JaySTROKE]

have you tried pulling out power and re applying it fast ? try it a few times , have a box that just the same, when i pull power and re apply it works
Yeah, tried it at all different speeds.

[Curious123]

Have you tried using the web interface method for flashing the dm800 just to see if it is picking up an ip address of any kind? You would have to check the router to see if its picked up the ip address since your lcd is not working.

[alom5]

i hd this problem mate. change your dreamup version. latest one should be fine.

[smirnoff_rules]

Yeah, tried it at all different speeds.

mines the same u can pull out and put in 20 times and nothing happens then all of a sudden it works . keep your finger on the power button and as soon as it comes on leave your finger on the button still u see the word stop and flash from its webpage ,, and put blackhole on it too . its the best image l think

[JaySTROKE]

Have you tried using the web interface method for flashing the dm800 just to see if it is picking up an ip address of any kind? You would have to check the router to see if its picked up the ip address since your lcd is not working.
Not showing on the router, nothing on LCD beginning to think the board is ~~~~ed!

[JaySTROKE]

i hd this problem mate. change your dreamup version. latest one should be fine.
When it does connect it only seems to work with version 1.3.3.5

What is the latest version and where do I get it?

Cheers

[andy91]

Think i would try the tried and trusted 1.3.3.4 but i know there are loads of versions out there and ive seen 1.3.3.7.
If you google you will probably find more and theres that enforcer program you could try or if you have a spare Dreambox connect with that first then swap.

Andy.

[alom5]

this worked for me.............i used the patched dreamup.

[JaySTROKE]

this worked for me.............i used the patched dreamup.
Still no joy, thanks anyway.

[alom5]

theres a few other files on tere including enforcer and so on. have u tried all them?. there is instructions as well.

i cant think what else......

[JaySTROKE]

theres a few other files on tere including enforcer and so on. have u tried all them?. there is instructions as well.

i cant think what else......
Hi mate,

Got the 2nd method to connect once, but when I tried to flash it is stuck on "calculating checksum" hit disconnect and back to square 1, not connecting.

[smirnoff_rules]

Not showing on the router, nothing on LCD beginning to think the board is ~~~~ed!

it will never flash if the display dosnt come , have u seen the display work when u tried dreamup ?

l have used this dreamup for years https://rapidshare.com/files/149494829/DreamUP.zip DreamUP_1_3_3_2.exe never needed a newer one

[JaySTROKE]

it will never flash if the display dosnt come , have u seen the display work when u tried dreamup ?
Hi mate,

Yeah it comes on when I eventually get it connected, but it is all blurry and unreadable. I think it is defo a power issue on the board.

[smirnoff_rules]

have u a spare power supply thats the same output ? l use an old modem feed if l flash a box . as long as the out puts the same , so if u have it connected to the router and power up with the power button pressed and release after 10 seconds can u see it on your network ? if u can type that in your internet browser and see if u can get a webpage

[JaySTROKE]

have u a spare power supply thats the same output ? l use an old modem feed if l flash a box . as long as the out puts the same , so if u have it connected to the router and power up with the power button pressed and release after 10 seconds can u see it on your network ? if u can type that in your internet browser and see if u can get a webpage
No it does not show up, it's like the Flash chip is corrupt!

[smirnoff_rules]

as the tuners are the biggest problem with these boxes l wonder if u remove that and power up and see if the display works then incase its shorting out ?

[JaySTROKE]

as the tuners are the biggest problem with these boxes l wonder if u remove that and power up and see if the display works then incase its shorting out ?
Another good suggestion. Tuner is out and the only thing connected is the lcd. Still the same issues.

[smirnoff_rules]

? have u anything to check the power voltage from your brick (power supply )

[JaySTROKE]

I have tried about 10 different power supplies as I have a load of DM500's. They are the exact same. Still no joy. Do you know where I can get a schematic of the mainboard?

[moler]

Hi i have same problem , it startet after installing update from the dreambox menu , then it could not find any tuner and i could not chose any. Then i made reset to factory settings , and then when starting up where i chose resolution and such i could not make any changes and could only press ok , then no light in lcd display , but the box is running . It does not show up in my router. Have tried another power suply.

[smirnoff_rules]

Hi i have same problem , it startet after installing update from the dreambox menu , then it could not find any tuner and i could not chose any. Then i made reset to factory settings , and then when starting up where i chose resolution and such i could not make any changes and could only press ok , then no light in lcd display , but the box is running . It does not show up in my router. Have tried another power suply.

are u using a clone box ? updating from dream isnt a good idea then

[JaySTROKE]

are u using a clone box ? updating from dream isnt a good idea then
MIne is a clone too. What should I be using to update?

[smirnoff_rules]

clone safe software m8

[Mjolinor]

Take the top off and check the 4 big electrolytic capacitors have flat tops. If the tops are at all bellied upwards they are stuffed, I would just replace them anyway whether they look naff or not.

These boxes are just way too small to get rid of the heat that they generate and the electrolytics dry out really fast. Your symptoms are exactly what will happen when they are heading South.

[JaySTROKE]

clone safe software m8
I thought dreamUP was clone safe. I have always used it and it has been successful in the past. Can you suggest others and where I can get them. I will try anything now to get this box up and running. Cheers mate.

[JaySTROKE]

Take the top off and check the 4 big electrolytic capacitors have flat tops. If the tops are at all bellied upwards they are stuffed, I would just replace them anyway whether they look naff or not.

These boxes are just way too small to get rid of the heat that they generate and the electrolytics dry out really fast. Your symptoms are exactly what will happen when they are heading South.
Thanks for the reply mate. Where would I get replacements?

[smirnoff_rules]

I thought dreamUP was clone safe. I have always used it and it has been successful in the past. Can you suggest others and where I can get them. I will try anything now to get this box up and running. Cheers mate.

it is m8 just the image isnt http://www.digital-kaos.co.uk/forums/f39/how-flash-dm800-122157/index2.html#post1168020

[adam123]

hi m8
best advice get genuine one and forget fake chinese dreamboxes honestly save some money i know its expensive but it worth it
good luck
sincere advice

[Mjolinor]

They are on eBay, you can get them from RS in fact any electronic component supplier.

Make sure of the size though because high value caps like this are sometimes pretty damn big which would normally be better but as this thing is the size of a flaming matchbox you have to stick to the original size. This also means the replacements will not last as long as you like either.

IIRC they are 10,000 uf, 25 volt but don't quote me on that. It would be better if you use 105 degree ones if you can get some to fit.

I have the value wrong there, hang on Ill take the lid off mine and look.

OK, mine has 10,000 in but that is because I didn't have any 47,000. 47,000 uf is the correct value.

[moler]

are u using a clone box ? updating from dream isnt a good idea then
Yes it is a clone and have now foud out that it is a no go , but are there anything to do?
I am stuck since i can not find the box ip. It is a friends box and have never been on my lan. And yes he made the update from dream :) , but i would like very much to get his box working again. Would it maybe help if i took it back to his lan , and then tried dreamup with his dreambox old ip?

[JaySTROKE]

They are on eBay, you can get them from RS in fact any electronic component supplier.

Make sure of the size though because high value caps like this are sometimes pretty damn big which would normally be better but as this thing is the size of a flaming matchbox you have to stick to the original size. This also means the replacements will not last as long as you like either.

IIRC they are 10,000 uf, 25 volt but don't quote me on that. It would be better if you use 105 degree ones if you can get some to fit.

I have the value wrong there, hang on Ill take the lid off mine and look.

OK, mine has 10,000 in but that is because I didn't have any 47,000. 47,000 uf is the correct value.
Thanks mate, I will defo give that a try. Have found a few on eBay, do you know the dimensions?

[Fergal]

There a number of things that can cause just the two ethernet lights to light up and nothing else
like the Lm2599 SIMPLE SWITCHER Power Converter You can try doing the wire mod see attachments
also check the L37 and c288 resistors(last picture) on the underside of the power socket
It could also be the the U6 Regulator
So as you can see there are a number of things it could be.... the easiest solution is put it on ebay as faulty you should get ?70-100 for it then buy another one or a different box.

[JaySTROKE]

There a number of things that can cause just the two ethernet lights to light up and nothing else
like the Lm2599 SIMPLE SWITCHER Power Converter You can try doing the wire mod see attachments
also check the L37 and c288 resistors(last picture) on the underside of the power socket
It could also be the the U6 Regulator
So as you can see there are a number of things it could be.... the easiest solution is put it on ebay as faulty you should get ?70-100 for it then buy another one or a different box.
Thanks mate, that is top drawer. You seem to know your way about the board. Are there any detailed instructions on the wire mod?

[Fergal]

In the first picture P1 and p2 go to the points in the second picture
P4 goes to the point in the 3rd picture

[nigel13]

check if capacitors are swollen or bulging on the tops, this would cause the problem you are having

[satlook]

thank i will try !!!!!!

[saints1]

i was having power problems with mine. went through everything was going to order new board then noticed the pins on the modem socket wernt fully connected! re seated them and all was perfect.

[tooloud]

well it would be nice to know if this problem was solved and how it was solved as i have exactly the same problem and its driving me nuts

[rparero]

well it would be nice to know if this problem was solved and how it was solved as i have exactly the same problem and its driving me nuts
I've seen similar problem with u23 and u25, boths transistors can cause this problem.

[slroro]

any outcome on this? i have the same issue!!! http://images.digitalworldz.co.uk/smilies/sad.gif

no power at all, except the ethernet cable and the fan running.

help