Xpantastic!

thanks for that, ill try it. ill check the 6809.

does 60.2vdc sound close enough for the 55vdc? all the other voltages read properly.


--- In xpantastic@yahoogroups.com, E P <erfly44@...> wrote:
>
> Hi,
> 
> The 9V AC is used only for the filaments of the tubes and is not regulated.
> So, it possible that you have a probleme with one of the display.
> Disconnect the cable from the panel board to the display board and see
> if the Matirx have a correct response with your action on the button. The LEDs
> have to behave a usual.
> In the same time, control the voltage of the CPU board (pin 7 of the 6809).
> You must have 5V. If not, perhaps the PSU have problem!
> 
> Regards
> 
> Eric
> 
> 
> --- En date de : Mar 15.2.11, r_j_d_2.phila <r_j_d_2.phila@...> a écrit :
> 
> De: r_j_d_2.phila <r_j_d_2.phila@...>
> Objet: [xpantastic] Matrix 12 not booting up
> À: xpantastic@yahoogroups.com
> Date: Mardi 15 février 2011, 21h03
> 
> Hi all, im hoping someone might have some ideas/leads for me. upon turning on, my M12 is not producing sound, most red LED's are solid on, and the displays are blank. if i hold the "clear" button while turning on, the "RESET" option flashes for just a split second, then disappears.
> 
> i have checked the PSU voltages, and everything is within the specs of the service manual EXCEPT:
> 
> 9vac reads about 6.5vac
> 55vdc reads about 60.2vdc
> 
> any ideas? are those within normal specs you think, or do i need to be concerned with that discrepancy? thanks for the help!!!
> 
> 
> 
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