Hi guys. A friend retired PA guy give me for free crown ce1000.The amp have fault on channel 1 the clip led stays on.Check everything under main board found nothing broken.All small capacitors replaced except the two main filter caps.I suspect one of the upper board 8-4 pins smd chips 339 - 33078 - 33079.The amp was very dirty inside must be running on smoke area the main board covered with brown mix from sticky dust after the front face platte where the air comes in.I have clean carefully the components and the smd pins.Fire on with two 40w in series dim lamp and no difference.The dim lamp stays just a little on (no short) and after that i run the amp direct on 230 mains again no difference stays on clip channel one.Any hint what check next?
