Failing resistors on Gemini XGA5000

Hi everyone, new here 🙋🏽‍♂️.
Im trying to fix the amp but two 1k resistors that leads from the mains to the input pcb keeps on failing. I looked for short, and there is but after a while it disappears (bad cap maybe 🤷🏽‍♂️). It is fairly simple design but unfortunately I couldn't find schematic. Can someone help me figure it out? Thanks


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