Hi,
I had a similar issue and replaced all of the electrolytics on the power supply board, which solved the problem.
jb
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Am 10.11.2020 um 21:46 schrieb Gunter Weeks via groups.io <bob.weeks@...>:
Good Evening (Well it is here)
I have some issues with my 802, Some times it would boot and some times I got a initial boot screen and then it would dim. After a power cycle it would work. However, two weeks ago it wouldn't pass the boot screen.
The circuit diagram gives +5 and +15 however my power board gave 4.6 and 14.3. After tweaking the pot Im now back up to 5/15V however, this took quite a turn.
So This brings on a question why did the voltage drop is it bad caps? and how long can I use this before it start failing again and I need a tweak to Max...
So I recon i have to recap the power supply and replace the large 1W power resistors. Any other pointers?
