30-04-2022, 04:10 PM
Thanks for all the replies.
I bridged the open diode with a piece of wire and the meter came on, I ordered some 1n1448 diodes from rs and they arrived yesterday.
The diode when removed had nothing on it to identify itself so I soldered in a replacement 1n1448 and it all worked OK.
I didn't haven't a clue what the staining was so I removed the "Chang" branded elec cap to check it, it was fine but I replaced it anyway.
The board was cleaned up with servisol on a cotton bud and has responded well, i didn't want to chance IPA on that board.
It's not a class repair but it's got the meter working which is the main thing, I had to offset the diode a bit to ensure the lid would go back on ok.
Just wondering why the diode went OC?
Thanks for the help.
Danndad.
I bridged the open diode with a piece of wire and the meter came on, I ordered some 1n1448 diodes from rs and they arrived yesterday.
The diode when removed had nothing on it to identify itself so I soldered in a replacement 1n1448 and it all worked OK.
I didn't haven't a clue what the staining was so I removed the "Chang" branded elec cap to check it, it was fine but I replaced it anyway.
The board was cleaned up with servisol on a cotton bud and has responded well, i didn't want to chance IPA on that board.
It's not a class repair but it's got the meter working which is the main thing, I had to offset the diode a bit to ensure the lid would go back on ok.
Just wondering why the diode went OC?
Thanks for the help.
Danndad.
