Thread: M542 problems see pictures
wee problem, was careful wiring up my M542 to my breakout broad that the mix up the + an - for the 24v supply and BOOOOM.
opened it up and this is the result
i no how stupid of me.
now i open one another one and this is wat is missing
can anyone tell me what it is???? the code on it is 1051 RV done a google serach but got nothing.
its a surface mount 1.05kohm resistor
however i wouldnt like to say if just replacing that will make everything alright
Me also thinks it's a diode, probably there to stop you from blowing the board up with what you've managed to do (swapping voltage pos and neg). Since re/de-soldering anything from surface mounts can be a bit tricky, I'd suggest getting a replacement from somewhere (you can always contact the manufacturer to check for the model and package no) and leaving the good board in peace.
it looks like a diode to me as well, put there to short the supply if you connect it wrong. If so you should be able to run the drive without it there, have you tried it.?
08-01-2013 #6Always bear in mind that your own resolution to succeed is more important than any other - Abe Lincoln
i've replaced so many of those i've lost count, sometimes the audio chip would take a beating but i don't remember the rf output failing from that.
General electric made their cb radios with the supply connection the same as the standard uniden chasssis but with the supply reversed (that made me a fair bit of cash) especially when they were told to replace the power lead and didn't bother.
the good old days eh!
Last edited by i2i; 08-01-2013 at 02:27 AM.
if the diode was put in series with the supply and the device on one lead, it would protect it far better but there would be a small voltage drop across the diode.
08-01-2013 #9Always bear in mind that your own resolution to succeed is more important than any other - Abe Lincoln
Get off the the cybernet boards and phase lock loops you old gits and flipflop back to work before i wack your BREMIIf the nagging gets really bad......Get a bigger shed:naughty:
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