Previously you helped me in these post: http://audiokarma.org/forums/index.php?threads/i-found-an-x1-but.776489/#post-10658635 http://audiokarma.org/forums/index.php?threads/factory-or-tech-mod-au-x1.785688/ Now, I recap the boards 2917-2918 (MC amp), 2770-2771 (MM amp), 2778 (reg power supply), 2774 (buffer amp). In the board 2778 I replaced a lot of resistors and transistors (a992 and c1845) that were affected by the corrosion of the glue. And obviously I've changed all the black flags. I connected the amplifier with a DBT without speakers connected. I am using a 75 watt bulb, in my country we have 220 volts. When I turn it on, without the boards 2917-2918 and 2770-2771, I get all the voltages perfectly (power source, power amp, bias, etc.) and the DBT turns on 1 (from 1 to 10). The power light is on and all the relays are activated. The only strange thing is that when I select the speakers in A + B, the power light blinks, but everything still works fine. When I turn it on, with the boards 2917-2918 and 2770-2771 in place, the voltages go down, getting 7.7v and 38v on the 2778 board. If I put the switch in MC, the amplifier goes to protection and the light flashes. If the switch placed it in MM, the amplier came out of protection, but the voltages still low. If the switch placed it in MM, the amplier came out of protection, but the voltages still low. I have not yet applied any mods to the phono boards. I only changed electrolytics and black flags on these boards. Harolda says that when connecting the amplifier without the DBT the voltages stabilize, could it be the same? http://audiokarma.org/forums/index....tor-replacements.684619/page-15#post-10810722 Any suggestion is welcome Thanks!