¿ªÔÆÌåÓý

Re: 8902A Power Supply issue


 

¿ªÔÆÌåÓý

Those seem ok as the unregulated supplies.?


Peter

On Nov 3, 2018, at 3:36 PM, Tony Goodhew <tony_goodhew@...> wrote:

Hey All,

My 8902A stopped powering up and I've just started looking at the power supply.?

I worked through the manual troubleshooting steps and it seems to leave the finger pointing at the regulators (basically no rail other than the +15 came up when I tried the steps and it doesn't appear to indicate a short in any other area).

Looking at the unregulated -15V and +5V I'm seeing -23.5V and +10V. I understand they're not regulated but that seems a bit far away from the values on the schematic.

Is this expected or should they be closer to -15V & +5V?

Thanks,

TonyG

Join [email protected] to automatically receive all group messages.