ArcadEd
Member
Ok, I got a robotron that was out in the weather for a bit (though the wood is in really good shape) I can see the PCBs have a bit of a weathered look to them.
First thing I did was put in all the fuses that were missing. Fired it up and get LED 1 and 2 on the power board to come on, and E1-1 on the Rom board.
I tested voltage on the first Rom chip and the voltage was right around 4.3v.
First few questions.
1. The ISO has a lot of wires coming out, is there a diagram showing which are which so I can test them to make sure the low voltage isn't starting there?
2. If it is the ISO, can I keep it in place for the monitor, but just install a switching power supply for the PCBs? I looks like I will need one with -12vdc as well?
3. If the ISO is ok, what's the next step?
Thanks again.
First thing I did was put in all the fuses that were missing. Fired it up and get LED 1 and 2 on the power board to come on, and E1-1 on the Rom board.
I tested voltage on the first Rom chip and the voltage was right around 4.3v.
First few questions.
1. The ISO has a lot of wires coming out, is there a diagram showing which are which so I can test them to make sure the low voltage isn't starting there?
2. If it is the ISO, can I keep it in place for the monitor, but just install a switching power supply for the PCBs? I looks like I will need one with -12vdc as well?
3. If the ISO is ok, what's the next step?
Thanks again.
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