From: A218 Subject: Re: TECH: Bomb Jack - no sound Date: Tuesday, October 05, 1999 8:45 AM I got one in that had no sound as well - swapped the board into a working cabinet - board was not the culprit. Installed working board in problem cabinet - still no sound. Checked continuity of harness to speaker - ok. Scoped the output of baord - working fine. Measured speaker voice coil - open! Figured AH HA - cured it. Installed known good spkr - still no sound. Got disgusted, grounded one side of the speaker to switcher DC ground, hooked the harness lead with signal on it to the other side of speaker, and bingo - good sound. Go figure.