35440Re: [softrock40] Re: v9 problem
- Aug 4, 2009hi bob, i think i have done a bit of damage to the bourd wer you solder the wires to , and i cant seem to be able to trace the tracks so i can scape track and then solder ,, if poss have you got a picture that shows the tracks so i can try that .. if not is there any wer i can get a main board made up for me with i will pay for the labour and the v9 board thanks again bob .......73 frank
From: g8voip <g8voi.reeves59@...>
Sent: Monday, 3 August, 2009 8:25:16 PM
Subject: [softrock40] Re: v9 problem
The only sort of damage I can see you could do, apart from physically damaging the PCB tracks in the process of soldering the wires back on, would be if you accidentially connected the red wire (USB +5v) to either pin 2 or 3, as you would probably have destroyed the zener diode D2 or D3 as there would have been no series resistor to limit the current.
A quick resistance check with the USB lead disconnected from the PC no power applied to the v9.0 and remove the ATtiny chip U2, should show you if either of these are short circuit.
The leads from the USB lead short be red, White, then a spare pin, Green and finally Black.
With the USB lead plugged in, you should be able to measure +5v between pins 8 and 4 of U2.
The only other problem I can see would be if you connected the 5v lead to the ground pin which might have damaged your PC USB port.
It should not be too difficult to resolve the problem.
73, Bob G8VOI
--- In softrock40@yahoogro ups.com, "francishodge@ ..." <francishodge@ ...> wrote:
> hi to all ,, i have a v9 witch a friend of mine built .but wen i was putting in in a new case i got , i pulled 2 wires off the usb side of the bourd , prat as i am , and with me haveing bad eyes , i tried to solder them back on .but i think i have dond damage to the bourd wer you solder the on .. so i am asking if any one out there in radio land can build me just the bourd as i have the switching bourd that shuld be working ok as all the lights still work but the main bourd dosnt as it says usb divice not recongized en i plug it in .. i will pay for new bourd and for making it up for me and if the old bourd is ok to you i will pass it on to you . so if anyone can help me please as i realy miss my radio i would be very greatfull thanks for lisening 2w1epo frank
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