Good effort - Now move to the socket at the other end of the board.
Same safety conditions apply though tests on lower voltages
Set your meter on vDC200 I cant see any pin marks unless one is a minus sign.
Basically you need to find which is ground ( May well be the one with the minus on)
see if anything goes from there to the negative side of those smaller caps?
No Power to board while your searching.
Then having established ground (switch power back on) put black probe on ground and test each pin on the socket with the red probe.
Heres a pic of the other side of the board. I'm not sure which would be ground?
On the actual connecter, the connection to the pin which says 1, on the connecter says H JST. The second connector says F2. There is also a little x in-between both of these connection points.
The third says 3, the fourth says 4 and the fifth says 5.
See pic think second pin is the ground. Just check that the joints marked C-
line up with the white stripe on the side of the caps
Thanks again, but not sure which joints marked C you are referring to?
The ones on the bottom side of the board, which say C13, C14 and C15; or the ones on the top side saying CN1, CN2, C1, C2, C4, C10A, C10B, C9, C11, C12?
Once its switched off, do I need to touch the long nose pliers to the big cap soldering points. This drains the excess current or something doesn't it?
no, if you do that you get a big bang and damage both the cap and the end of the pliers.
if you leave it a while it should discharge - you can test it later wih the meter to see if it's dropped.
when you do, you set the meter to dc and atleast 400v
i skimmed over it,
if i could see all the underside of the board i'd know how the connector links up.
but i think it's o.k. or atleast it's not dead.
(obviously)
just getting a sandwich but i do have to go out.
I think that part is functioning ok but without a service manual or previous experience of printer voltages cant be sure
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