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Electronics => Repair => Topic started by: soesante on December 06, 2024, 08:57:53 am

Title: Need help -Tek Tds3012B
Post by: soesante on December 06, 2024, 08:57:53 am

Hello.. My TDS3012B stop working, after not using it for about a month... there is no trace and diagnostic fail at acquisition ... (the disk drive has been removed so it fail)..I have measure around the voltages and all seems ok.. the 75.75mhz oscl also measure correctly (the 3.3v and the frequency).. is any one could suggest where to start?..i attached some photo of the unit , the fw version , the diagnostic and the screen with no trace... thank you
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Title: Re: Need help -Tek Tds3012B
Post by: soesante on December 07, 2024, 04:17:22 am

It works.. after poking around and found nothing obvious.. I reasembled it and the trace is back after some noise of relay clicking.. not sure what is the cause of the problem but it could be one of the relay is stuck... tried to power on/off several times and it seems fine now..
Btw - is there a way to test the nvram battery onboard ?... its a dallas DS1742W-120..