CAUTION SHOULD BE OBSERVED WHEN REPLACING THE VERTICAL IC AS THE PRINTED CIRCUIT COMES OFF EASILY, IF THE IC WAS BURNED, ALSO CHECK THE BIAS RESISTOR , IT IS A LOW VALUE 1 OHM , THIS ONE OPENS FOR PROTECTION.
JUAN MANUEL PEREZ, January 2008
Ic is a La7837.The bad caps are surrounding it .Common values are 100 mfd and 220 mfd