fizzicato Posted January 10, 2009 Report Share Posted January 10, 2009 Testing the voltage of all OPL3 module parts, the only that don´t give me 5v its the YMF262 leg 1. The same in my other OPL3 module. Something is wrong?It´s normal?Thanks! Quote Link to comment Share on other sites More sharing options...
fizzicato Posted January 12, 2009 Author Report Share Posted January 12, 2009 Hello? Quote Link to comment Share on other sites More sharing options...
stryd_one Posted January 14, 2009 Report Share Posted January 14, 2009 Patience... There aren't a lot of FM builders. They might not be reading the forum yet. Quote Link to comment Share on other sites More sharing options...
TheAncientOne Posted January 16, 2009 Report Share Posted January 16, 2009 The 5V to pin 1 of the OPL3 chip (the YMF262), is very direct if you are using the standard board. Is the LED coming on?Have you got the chip the right way round? (easy to do if you are not used to surface mount).Check for a 'lifted' pin on the '262, sometimes surface mount looks soldered when you've missed tacking it down. Check you are not actually measuring pin 12 - this goes to ground. When holding the board so that the 'dent' in the chip edge is furthest away from you, pin one is top left. This should be furthest away from the PCB edge.Hope this is a start.I'm just beginning to run one up too, so I can perhaps parallel what you are doing. Quote Link to comment Share on other sites More sharing options...
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