Hey there, gang. I picked up a Musical Fidelity A5 integrated amplifier with two blown SAP15 output transistors a few weeks ago. I started repairing it, and found two SAP15 transistors faulty, a few resistors out of spec, and a bad bridge rectifier. It looks like one of the SAP15s caught fire and took out a few things. I'd like to go ahead and replace the zener diodes in that area, but can't find any markings on them and don't have the schematic. Any of you have a schematic or know what the specs of the zeners are? Voltages, part numbers, or suitable replacements, would be helpful. Also (while I'm here), any of you repaired the A5 with the same issue? I know these SAP15s are known to fail. Suggestions on what else to look for in such a repair such faulty caps, bad ZTX transistors, etc. would also be appreciated. Thanks.
