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ranger 2990

Posted: 12 Jun 2017, 15:45
by magicspeakeruk
ranger 2990 digits dimming then coming back,is there a voltage regulator up grade for this or maybe a dry joint?or anyone know a fix for this ? it has led in it.thanks

Re: ranger 2990

Posted: 21 Jun 2017, 21:38
by dt307
did have a quick look

cpu >led driver chip >led display

check j507 one end is the main 5v feed see how stable that is when the display goes divy and we go from there