0.2 ohm Resistor

bekdik said:
Are you sure that they have been removed (pic isn't clear enough to see)? Quite often a PC board is designed for multiple models of the device and where a function isn't available unused components are not mounted when it is manufactured.
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I'm pretty sure, every single photo on google for the Paradox MG5050 has those resistors in.
 
bekdik said:
Are you sure that they have been removed (pic isn't clear enough to see)? Quite often a PC board is designed for multiple models of the device and where a function isn't available unused components are not mounted when it is manufactured.
Click to expand...

Those have clearly been removed if you look at the solder on the pads.
 
Tell us what marked component is
There must be a reason those risistors blown
 

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I tend to agree that resistors were present before. It doesn't look they were unsoldered. Rather they were burnt/cracked and someone removed remains. But there is no sings of burns around resistors, strange. Testing transistors Q116 and Q117 would tell us more.
 
sajunky said:
I tend to agree that resistors were present before. It doesn't look they were unsoldered. Rather they were burnt/cracked and someone removed remains. But there is no sings of burns around resistors, strange. Testing transistors Q116 and Q117 would tell us more.
Click to expand...

Ja it looks like they were removed with pliers or something.
 
Update:

I had a friend that's an electronic engineer have a look at the board. The resistance is so low on those resistors he bridged them to check if the board gets power. Nothing came on.

Then tracing further he noticed the Mosfet at Q108 ( As per biena's photo ), was not good. Replaced it with a generic Mosfet and the board lit up. We are still not getting proper power delivery to the control panel AUX + - , where it fluctuates too much to start the panel. Bypassed that with linking up a 12V battery directly to the panel but still keeping the control wires ( GRN YEL ) connected and the control panel lit up and talked to the main board.

So there is progress. We are going to try and source the proper parts and see if it can be salvaged.

I'm just wondering why the Mosfet would go. Too much power as an input, or lightning maybe?
 
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Probably ran from car power source. If the alternator was faulty it could give out more/less than expected and then bad things happens to electonics.
Happened to a ipod of mine, plugged into power socket, alternator went bad and caused a surge that took out the ipod's power regulator.
 
Off topic a bit, but does anyone know where I can download the latest in line firmware for the MG5050?

I have the TP50 touch panel with micro SD and will want to flash the board once it's up and running.
 
CPTBoy said:
I have tried, they only allow you to register if you are a licensed supplier. They don't allow you to download if you are an individual, which is a bit silly.
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Did you email and ask for new firmware?
 
ponder said:
Did you email and ask for new firmware?
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Yup, tried that as well

Hello XXXXXX

I hope you are well and Thank you for using Paradox Security Systems.

Support for our products is offered thru authorized distributors.

You may refer to our website for a distributor in your country who will be able to assist you with your inquiry and any Paradox related assistance you may require.

The following is a link to the distributors map on our website:

http://www.paradox.com/FindDistributor/v5/
 
Ok, got it.

For anyone who's interested, download the InField Paradox Software exe ( I got mine from here : http://www.didarc.com/downloads/paradox-software ). When launching you can select the firmware you wish to download and then just select your Paradox board.

It will then download the .PUF file which is saved in the install directory.
 
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