Boss Sd-1 is Dead!!!

[SnooP_Wiggles]

Ive got a boss sd-1, black label japan. I just modded it recently (replaced opamp, ts9 diodes), which worked nice. But then it stopped dead (no signal bypass or effect on), I think the powersupply might have done something (its 13.5 dc - not 12v like boss ACA)  but i've used it before with it no worries. but now the Sd-1 is completely dead. Ive tried replacing battery snap, dc jack, input jack, replacing opamp (socketed) and using the audio probe trick. With audio probe signal was going through the first few components, but got quiter and quiter, until too quiet to follow through the circuit. Obviously no battery power was going, i suspect a short circuit but no bridged tracks from solder. The battery also gets drained rather quickly and gets warm quickly too....  I also tried searching for dead components (diodes/caps) by bypassing them with hookup wire but no avail. Any ideas of where to look? No physical signs of damaged components.

[petemoore]

Take Pin voltage readings from pins 1-8, and post them, it may help...