I have a Tokyo Hy-Power HL-2KFX which has developed a fault. I only have a home-printed copy version of the manual and the quality is not great. Does anyone happen to have a high resolution version of this schematic circuit diagram or know where such a thing can be found?The fault first showed itself as a blown glass fuse on one of the PA modules, with the corresponding 'FUSE' warning light illuminated on the front panel. This amplifier has a total of 8 Motorola MRF150 transistors,arranged in two separate modules, 4 per module.When the fuse was replaced and a small amount of drive power applied (25w) to the amplifier, the 'O.DRIVE' (over drive) warning lamp illuminated.Has anyone with experience of this model amplifier ever encountered anything similar?All help or suggestions as to where the problem might lie greatly appreciated. Iain MM0TFU