Tektronix 464 oscilloscope Dead screen


I have a Tektronix 464 oscilloscope, with dead screen , when switching on the power lights blinks on the screen but noting else , I tried all nobs and settings no use opened the cover all fuses are fine , found two capacitors leaking and in abnormal condition replaced them "temporary" with same value capacitors but nothing appeared on the screen . Any suggestion please

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