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8901A Modulation Analyzer, 150 kHz to 1300 MHz unable to power up

Question asked by aaron_304 on Dec 11, 2014
Hi, 
I have a 8901A Modulation Analyzer, 150 kHz to 1300 MHz (HP).
When i try to power on the analyzer, it does not response. Display panel shows nothing. From I observe, the only thing that function is the internal fan. 

Appreciate if anyone can provide me some guidance on the issue above.

Regards,
Aaron.  

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