ну если дело именно в аналоговых цепях - можно и перебором вариантов.Цитата:
боюсь что без осцила - не осилить
Для начала удалить транзистор, на котором смешиваются RGB. Посмотреть, не появится ли растр.
Вид для печати
ну если дело именно в аналоговых цепях - можно и перебором вариантов.Цитата:
боюсь что без осцила - не осилить
Для начала удалить транзистор, на котором смешиваются RGB. Посмотреть, не появится ли растр.
Цитата:
Сообщение от UncleDim
Цитата:
Сообщение от balu_dark
I know that this is russian forum and I cannot require from you to write in english but these posts are to hard for translate by google(forgot to add that i don't understand russian). I'll be very grateful if someone could translate it into english(or into polish;))Цитата:
Сообщение от UncleDim
Regards
I think the picture would be better:)Цитата:
Сообщение от Maciej
You may try any of the following:
1. Cut D42.9-VT2.base wire and add R3 (in red on scheme2.jpg)
2. Remove R2, VT2, and add wire between D42.8 and VT3.base (in green)
3. Remove VT1
And (regardless of the choise) try to reduce SCART's 16pin pullup resistance from 220 to 75..150 Ohm.
Good luck!
Thanks, that cleared up everything:DЦитата:
Сообщение от UncleDim
Unfortunatly it didn't help.Цитата:
You may try any of the following:
1. Cut D42.9-VT2.base wire and add R3 (in red on scheme2.jpg)
2. Remove R2, VT2, and add wire between D42.8 and VT3.base (in green)
3. Remove VT1
And (regardless of the choise) try to reduce SCART's 16pin pullup resistance from 220 to 75..150 Ohm.
Good luck!
I've took another one TV(FUNAI MK5 TV-2000T) and connect via SCART. Turned on AV mode and it works :v2_thumb:, but:
-only with VIDEO signal(monochromatic); additionally screen is in negative
http://img265.imageshack_.us/img265/...c090623004.jpg
-RGB and SYNC doesn't work.Following foto show case when D42.9 is connected directly to base of VT3(VT2&R2 removed)
http://img269.imageshack_.us/img269/...c090623003.jpg
When i've puted +5V on RGB Status(16 pin)it did nothing because 16 pin of SCART is connected to the ground in this model:(
Regards
The first move - check/replace D11 (since it "prepares" both Inv and Sync sygnals)Цитата:
Сообщение от Maciej
D42.9? or D42.8?Цитата:
Following foto show case when D42.9 is connected directly to base of VT3(VT2&R2 removed)
This TV may have no RGB inputs on SCART (not sure).Цитата:
16 pin of SCART is connected to the ground in this model:(
OKЦитата:
Сообщение от UncleDim
To D42.9. When connect to D42.8 the screen is almost black.Цитата:
D42.9? or D42.8?
This TV may have no RGB inputs on SCART (not sure).
But it really doesn't matter since you've got right(this model hasn't got RGB input on SCART).
http://img269.imageshack_.us/img269/...c090623006.jpg
Regards
It's Ok. It looks like Sync is correct but no RGB.Цитата:
Сообщение от Maciej
Have you tried combination "Sync on D42.8->VT3" and "5V directly to pin16" on Nokia TV?
btw, incorrect signal INV may be caused by wrong diodes (near D11) direction too.
look here : http://pinouts.ru/Home/Scart.shtmlЦитата:
Сообщение от Maciej
and take attention to pin 8.
also check level of sync and other signals must be 0.7-1v if bigger - TV may not accept it or sync may gone.
Are you sure what you count right and pin 16 at ground? maybe you check pin 17 by mistake?
also - please give exact description which sygnal from computer to which pin of SCART you wass connect. This may help.
Yep, but it doesn't even change the screen. I don't have original remote controler for NOKIA TV so I cannot switch on AV mode. I've tried to put 5-12V on 8 pin(Video status) of SCART. No result.Цитата:
Сообщение от UncleDim
In a while I'll try another one TV. Hopefully it will works:)
Regards
На фото видно, что на телевизоре есть видеовход COMPOSITE. Надо сначала попробовать подключить компьтер через него (черно-белый), если всё в порядке - то пробовать через SCART.