hello HAD! this my first huge project I'm working on and decided it would help to get some help from all you cool people.
I have recently acquired a Panasonic SA-HT700 "DVD home theater sound system" from my aunt I cannot get it to turn on -the first reason is that the main board is not getting the standby power from the sub\amp\psu, I have already checked the continuity of the cable, and I have confirmed its 6V is alive really about 5.4 in (fig1).
-I also put my own separate supply into the main board that is the same voltage(fig2), standby led lights(fig3), ir in works, power button does also but with no response from anything (I found 2 wires to the psu 1 that is pulled up("sync") and one pulled down("h_mute") but none that change state when the power button is pressed) and the uc does work 21.7mA with the led board in(fig4) and 20.5mA not in.
-and I am having difficulty probing the psu because I cannot get a screw out.
and my pictures are up on http://postimage.org/gallery/8f7lfsqm/
(thanks to that guy\|/)