ARCHIVED FORUM -- March 2012 to February 2022READ ONLY FORUM
This is the second Archived Forum which was active between 1st March 2012 and 23rd February 2022
Hallo,
Since yeasterday I have a black screen on my 21 year old AV9000. First there whore shadows on the image, then TV was switched off. After switching on again the screen stayed black with some green dots.
I took some pictures of my AV9000:
1) when booting my sat-reciever (dreambox)
2) Here is the picture of the original bootlogo of my dreambox that should be shown on the AV9000:
3) A picture when the sat-reciever was playing a TV-show
Some more info on my system:
" When you switch on and get the black screen does the TV go back to standby ? "
No, TV stays switched on , green LED on the upper right corner of the AV9000, sound is playing through the Beolab8000. The coloured dots are coming and going on different points of the screen, they are in relation with the image that should be shown on the screen. If you look at the iHAD screen you may see that the green dots on the AV9000 are the brightest parts of the bootlogo, the upper line of the " D " and the upper and middle lines of the " a ", even a little part of the surrounding box may be seen. My AV9000 was only repaired once in the 21 years, I think it was about 10-11 years ago but I can not remembre the problem, may be the same one ass now. I remembre that the Beo-technician came to my place, opened the rear cover of the TV put one module out of the TV and fitted a new one inside and every-thing was fine again. I think that at this moment a software-update was made too, because when I bought the AV9000 I did not have the money to buy the whole system and I only bought the TV and CenterControlStand and 2 Beolab8000. With the first software-version I had the AV9000 wasn't working with only 2 Labs connected, there had to be 4 Powerlink cables connected to the CenterControl. I used my old non-BO speakers as rear speakers with a kind of beopassiv link (thats not the right name because there is no masterlink on it, only 1 Powerlink-IN an LEFT and RIGHT DIN-Speaker-Out) . Using only 3 Powerlink-Connectors in the ControlCenter the AV9000 did not switch on. To get the AV9000 to work with only 3 Powerlink-Cables connected, a 4th Powerlink-Connecter had to fitted to the ControlCenter and in this Connector pin 2 and 4 where connected together with a 22kOhm resistor . As my old speakers broke down several years ago I did not use the BeoPassiv anymore and took the powerlin-cable away but the AV9000 continued working. I only know realize that this wasn't normal, so there had to be a software update during the years. I hope it would be possible to repair my AV9000 because it is of a very high sentimental interest to me. I started only one year ago to complete my system by buying an used MastePanel, a month ago I bought a used Beolink 7000, last week I ordered the caps to do the recaping of the Beolink 7000 to get 2 way-communication to work and last but not least, I also bought a pair of used Beolab6000 last week, they aren't even shiped yet. If you could give me some help to get it working again , I would be very pleased. Thank you very much sincerly gerard
Does it give an error code in the display?
The only thing to do is to get a qualified service on it as its time to do so. The only thing to decide if you want to spend the trouble of doing that.
I had one thing go wrong with my late model (BEO4) AV9000. But it sounds like your problem is different from mine. My A9000 refused to start one day. The light in the top corner went from red to green and back to red. It turned itself of directly and the screen never got a signal to start at all. The fault was the text-tv module.
You probably get an idea what can be wrong with your AV9000 when someone experienced see this thread. Good luck!
Friedmett: Does it give an error code in the display?
No, in the display of the ControlCenter there is : TAPE
What do you see if it is switched on as TV ? (even without antenna, it should give the 'snow' picture)
my first guess would be that your scart isn't plugged in properly anymore on either end (theyvdobtend to fall half outcat times).
Thank you ipaul for your feedback.
ipaul:What do you see if it is switched on as TV ?
I see no picture only Black Screen when AV9000 started with BeoLink 1000 TV-button.
ipaul:my first guess would be that your scart isn't plugged in properly anymore on either end
Its plug in the dreambox and I when plug it into another TV I have picture and sound on the working TV when plugging it back to the AV9000 I have green dots on the screen as discribed above.
I did one more test:
I put dreambox in time-shift mode which gives me a still-image. Then I took a photo of the AV9000, then plugged the scart into a working TV and I took a picture of the screen with sti-image on the working-TV.
AV9000 Screen
Same picture as above but seen on a working TV.
In the red circles you have the bright dots which may be seen on the AV9000 picture also in the red circles.
What I also noticed is that my AV9000 normaly switches on when I switch on my dreambox, but now AV9000 is still in stand-by when the dreambox is switched on, to get a picture (green dots) on the AV9000 I have to use the vtape-button on Beolink 1000.
I hope that this test my help you
regards
gerard
Ok, than it's probably a (unusual) video problem inside the tv.
You also had no menu information (i mean, you can't see the menu or teletekst)?
in any case, i'm afraid it needs a tv doctor...i would start with the video output board (and check G2 and HT first) and move 'backwards' since the menu/teletekst is the last bit before the video output board if i recall correctly..
but now the thing is: how confident are you working inside tv's...
the good thing is that replacement boards shouldn't be hard to find :)
(what's your location ?)
ipaul:You also had no menu information (i mean, you can't see the menu or teletekst)?
I will check it this evening
in any case, i'm afraid it needs a tv doctor...i would start with the video output board (and check G2 and HT first)
I did not find the Service Manual for the AV9000 hear in the board and on the internet.
how confident are you working inside tv's.
Not confident at all for TVs, I'm normaly repairing nearly everything bby myself in the my house, from electro-installation to computer , woodcraft to furniture. But I will not put my fingers into aTV with High Voltage. Repairing will be done by a friend of mine who's teaching electronics ant electro-mechanics in the school where I'm working too.
I'm trying to collect as mutch info as I can to help him to do a good job and save some of his time, he asked me for a service Manual of the AV9000. I already downloaded the MX7000 service manual , may we use it for the AV9000?
glad to hear this, but I do not have any idea where to find them
ipaul:what's your location ?
I'm living in Luxembourg and if you prefer to write in an other language, we may switch to german or french.
Thank's gerard
Ok, Gerard, the sm of the MX 4000/6000/7000 is good enough for that part of the AV9000, its basically the same tv with changes in the audio and add ons (like curtains etc), but for your problem it should be fine.
If needed, i may have some boards left over, would have to sent from NL.
Hi Ipaul
I made the tests with the menu as you said and this brings in some differences. I took again 3 picture of a still picture of my dreambox:
1) Today there is more colour in the picture, it started as usual Black and Green but after a few seconds there were mor colours
Picture of AV9000 with no Menu
2) Then I switched on MENU and colours became more powerful, but overall picture is not sharp.
Picture AV9000 with menu switched on
3) Control picture on a 26" Flatscreen
same Still Picture displayed an Flatscreen (all pictures are made with iPhone, so quality is a little less good then with the eye)
4) Serial-NO info of my BV9000 and MPAV9000
Using AV1 or AV2 to connect the dreambox does not change anything. There is also a S-VHS connector on the BV9000 and on the Dreambox, would a test with S-VHS help?
When yes I will buy a S-VHS cable to test.
I can't understand why the picture is better today, the only thing I did is plug in and out the Scart-cable several times to fix it to the Flatscreen and back to BV9000 and to change it from AV1 to AV 2 and back to AV1
As you are in NL do you prefer german to english? May I ask you if you live near Zeeland, as I used to go to Veere to do some surfing?
That's weird, my Masterpanel has typenumber 2623 (1992)
Brengen & Ophalen
The UK version is 2622.
Peter
Ok Gerard, english is fine (and at least others can read it as well) and i live in central NL, Leslie lives kind of on the way from Lux to Zeeland...:)
From what we see in your pics and what happened, it could well be bad solderings on a video board (which explains why the picture is more or less back, it may go again), or something around G2 (it is a bit hard to judge from the photo, but the colours seem to 'bleed' somewhat), or a tube problem (which is very uncommon with these, other than being worn which gradually gives quality loss.
probably the easiest way to start is to have your tech guy open the tv, switch on, and with the back of a (plastic) toothbrush or small screwdriver, tap on the boards and try to locate if and where there might be a bad spot on a board.
that is easy to do and only takes time :)
Thank's ipaul for your tip&tricks
G2 was the problem turning a little bit arround with G2 an the picture was back again.As there was a lot of dust inside , I also vaccume cleaned the boards and chassis.
There's one problem left, the colours, people's faces are a little "grey", looks like dead faces.
But entering MENU colours are good . Like on the photos with Menu displayed and not displayed.
Do you have an idea where to search, to keep the same colours when Menu is displayed and Menu not displayed?
regards , gerard