Fri, 20 Apr 2018 01:10:33 +0200
[hp8662a] add pictures of replacement parts in the PSU (part 1)
--- a/content/hp8662a.rst Thu Apr 12 02:55:14 2018 +0200 +++ b/content/hp8662a.rst Fri Apr 20 01:10:33 2018 +0200 @@ -161,6 +161,12 @@ more parts than I really need, when these are cheap, just in case; seems to be a good idea), + .. image:: {filename}images/hp8662a/broken_choke.jpg + :class: image-process-large-photo + + .. image:: {filename}images/hp8662a/replacement_choke.jpg + :class: image-process-large-photo + - there are 2 small 400mA fuses on the inverter board to protect the base of the 2 switching (bipolar!) transistors (first time I see the base of an NPN transistor protected by a fuse, but it's also the first time I repair a @@ -170,8 +176,9 @@ each. So for now, I've replaced it with a simple 5x20 glass fuse: not as skookum but does the job for a few cents. -.. image:: {filename}images/hp8662a/broken_choke.jpg - :class: image-process-large-photo + .. image:: {filename}images/hp8662a/fuse_replacement.jpeg + :class: image-process-large-photo + After these fixes, I reassembled the PSU and tried again: the result was quite promising, but not a complete success: the PSU seemed to start, but very