From: cd@notformail.com   
      
   On Sat, 22 Oct 2022 17:01:01 -0400, ehsjr  wrote:   
      
   >On 10/22/2022 10:26 AM, Cursitor Doom wrote:   
   >> Hi all,   
   >>   
   >> So my main analogue scope, a Tek 2465A, has gone faulty. Keeps blowing   
   >> main fuses (the 2A one on the rear panel). I opened the case and found   
   >> two RIFA caps that had obviously blown, so replaced them, but it's   
   >> still blowing fuses. I can't be 100% certain, but I'm pretty sure   
   >> there's a fault with the PSU board as I get the briefest whiff of   
   >> burning from that area each time I put a new fuse in and power up. The   
   >> new fuse blows again before I get to see any smoke coming from   
   >> anywhere at all. I'm linking to a diagram of the PSU as I'm not   
   >> familiar with this circuit topology. If anyone can spot a component   
   >> here that could have gone low-resistance and might be a good candidate   
   >> for out-of-circuit testing, by all means let me know.   
   >> Thanks,   
   >>   
   >> CD.   
   >>   
   >>   
   >> https://disk.yandex.com/i/UhxATIy-6Y0LIA   
   >   
   >Thia might help:   
   >https://www.tek.com/en/manual/2465a-and-2467-service-manual   
   >   
   >Ed   
      
   I did actually download this yesterday and that's where the snippet of   
   the wiring diagram I posted comes from. I find, however, that service   
   manuals in this form are so hard to navigate. I'd much rather have the   
   physical hard copy; so much more user-friendly.   
      
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