lulrik

Indeed I thought it was a simple counting. such as 1, 2, 3, ... 14 ect ...

Ho ! I did not understand ! thanks for brightening !

Thanks ! Indeed I have played on my atari 2600 SECAM, and I did not notice any difference ! For color I do not know, it difficult to see with 2600 SECAM (8 colors) This model 145 is therefore already known? NB : called me if my English is meaningless

Hello ! I found it in France http://i59.servimg.com/u/f59/18/60/22/92/atari_10.jpg This cartridge is know ? thanks

cool! let me know: D You are right I refrain again thank you EDIT : a little help for french : http://www.gamopat-forum.com/t70800-resolu-atari-7800-qui-refuse-de-s-allumer his is the French version of the problem, but less complete

I tested it works !!!!!! I just buy a MJE210 for a console I also will buy other items in case there have a problem again thank you hugely !!!!! I'll probably make a tutorial to learn how to repair and change the components that we are posed problem, I put it on my website. . you can see pictures of my Atari on my website : http://lulrikgames.canalblog.com/albums/atari_7800/index.html I'll keep you posted for more and thank you again

I'll try to reseal the components, I will give new

New !! I think we are progressing !! I think MJE210 is dead and that he simply does not switch when you press the ON switch. Right ? You think that I need to test weld MJE210 (new) on the old console to see what happens?

I think there was a misunderstanding in ^ ^ gray cylinder is the zener diode for me from the beginning ... sorry I did not have understanding So you ... forget the test of the zener diod :S saw it was gray, I thought it was a diode. But it may be FB2 on the shematic I try with full transistor home. I think my multimeter does not work for the measure hfe, I have a METRIX MX22 but I think it does not hfe I'll try

I bought another Atari 7800 works, I hope to have the same mainboard. I open tomorrow. You action requests to do?

The regulator works, I its voltage I have zener diode, but I do not know how to recognize them because it comes from older devices. I'm looking for if I will buy. When I put the transistors in the Hfe, nothing happens ... I've tried everything. With transistor 7800 or from other btw for me "gray cylinder" is zener diode is we were talking about earlier, right? On the PCB its place is : L3 apparently he died

gray cylinder that looks a diode is conducting in any case, so I can not manage to know if it was a diode, a zener diode or something else

my method, called me if it is false MJE210 it a transistor type of PNP right ? If the transistor is PNP type, current will flow when the black lead of the multimeter is to the base, and that the red wire is in contact with the emitter or collector. right ? 2N3904 it a transistor type of NPN right ? If the transistor is NPN type, current will flow when the red lead of the multimeter is to the base, and that the black wire is in contact with the emitter or collector. right ? I said if my values ​​are not clear enough and does not allow an analysis of problem

with luck, I has it: D : http://fr.farnell.com/metrix/ax0503a/alimentation-stabilisee-ax503/dp/3430893 for our method : (front view) _____________ | | | | | 7805 | | | | | | | --------------------- || || || || || || || || || || || || 9v GND 4.5 or 5.5v my assembly is good ? I unsoldered Q9, Q10 and 7805 and the Zener diode and I give new PS: I have numerous pieces of diode detached home, how I could choose the right one?

Yes thank you, I saw Yes in my mother board, Q11 is (MJE210) and Q10 (2N3904) This is surely the PAL Version I have a SCART socket. I'm sure my button works, I tested I take it? I have a choice between them, the others are in USA am € 18 postage MJE210 : http://fr.farnell.com/multicomp/bd238/transistor-pnp-to-126/dp/1574355 http://fr.farnell.com/multicomp/bd438/transistor-pnp-to-126/dp/1574357 2N3904 : http://fr.farnell.com/multicomp/2n3904/transistor-npn-to-92/dp/1574370 http://fr.farnell.com/fairchild-semiconductor/2n3904/transistor-npn-to-92/dp/9846743 http://fr.farnell.com/fairchild-semiconductor/2n3904bu/transistor-npn-40v-200ma-to-92/dp/1700648 LM7805 : http://fr.farnell.com/fairchild-semiconductor/lm7805ct/regulateur-5-0v-7805-to-220-3/dp/1102157 I take that? http://fr.farnell.com/jsp/search/browse.jsp;jsessionid=T4D5T0VZMZVJGCQLCIPJLTQ?N=0&Ntk=gensearch&Ntt=LM7805&Ntx=mode+matchallpartial&exposeLevel2Refinement=true&suggestions=false&ref=globalsearch&_requestid=68274 Button : http://fr.farnell.com/wurth-elektronik/430456043736/switch-360gf-12x12mm-4-3mm-act/dp/2065138 I can't find 4013 (U10) I do not see any component with 6 legs like the schematic on my motherboard the first component of the right 9v electric outlet? how would I know if the zener diode? I can test the transistor Q9 and Q10 and regulator and the other with : on my multimeters really thank you

I am very silly! I like that: thegoldenband is a bridge Q11 and LED lights! What do you recommend doing? I do not quite understand: s Change switch? or Change Q11? or other things? thank you for your answers

I agree with you ^ ^ but you know them by heart? Can you help me? thank you hugely time you have for me! You are my last opportunity

Hello and thank you all So I should replace my regulator in first or Q9 and Q10 in first ? If he can go? http://fr.farnell.com/fairchild-semiconductor/lm7805ct/regulateur-5-0v-7805-to-220-3/dp/1102157 costs america europe port is expensive so I try to find near my home ---- I noticed just now that I had my 5 volts S1 button (ON OFF switch) button works fine since I removed and tested The power jack ? it ? : I checked with my voltmeter on the solder on the motherboard and I have around 12 volts I can't find R10, U4, C12. there is a problem with them? thank you for all your effort it must not be pleasant to work with a guy who has nothing, I'm sorry

this is what I measure the transistor glued to the heatsink, values ​​its good? cool or not cool ?

I do not understand if you have responded to my problem or the problem of "thegoldenband" (I apologize again for my difficulty in English) My atari does not light up and nothing happens it means that I have to do your method: "Check power on / off latch"? thank you

Hello, I'm sorry to bring this topic and I apologize in advance for my bad English with mistakes, I'm French. I bought an Atari 7800 but it will not turn on, the LED does not work. The power seems to work, but gives 12 volts instead of 9 volts I tried to see if the ON switch was not HS. With an ohmmeter, I saw that the current pass when I pressed the button. I have a mutlimétre and I heard the controller, can you give me the values ​​that I should measure about 3 pasta? Thank you in advance ------------------------------------------------------------------------------------------------------------- I posted also in case your french translator would be better quality than I ------------------------------------------------------------------------------------------------------------- Bonjour, je suis désolé de mener ce topic et je m'excuse d'avance pour mon mauvais anglais avec des erreurs, je suis français. J'ai acheté une Atari 7800 mais elle refuse de s'allumer, la LED ne fonctionne pas. L'alimentation semble fonctionner, mais donne 12 volts au lieu de 9 volts J'ai essayé de voir si l'interrupteur ON n'était pas HS. Avec un ohmmètre, j'ai vu que le courant passer quand j'appuyais sur le bouton. Je possède un mutlimétre et j'ai entendu parler du régulateur, pouvez-vous me donner les valeurs que je doit mesurer sur les 3 pâtes ? Merci d'avance