I’m attempting to repair a totally dead Panasonic SC-HC30DB and have found a faulty diode in the secondary part of the SMPS. However, I can’t identify this diode marked S69D as you can see from the attached photo. Could this be a 1N4069?
I also can’t find the service manual or schematic to look up the PCB part number D5798.
Any help identifying this component would be appreciated.