Do yourself a favor and get a better out cable made from by one of our fabulous cable makers. That input on the M10 looks like a possible source of failure.
Mics: ADK A51 TL's C12s, at853's (card, hyper, sub, and omni caps), Michael Joly Premium Electronics Modded Oktava mk012s (Card, Hyper and Omni caps), Oktava 319.
Pres: V3 opti/M-S Modded, BM2p+ UA5, church audio 9100, 3 wire BB
Recorders: Busman Mod Tascam DR-680, ACM HD-P2, HD-P2, MT2 x2, M10, JB3 x2, M1, D8