michaelvhunter Posted November 18, 2009 Share Posted November 18, 2009 Does any one know why channels 1 to 8 do not work but 9 to 16 are ok. Fuses are ok, all wiring is ok. I measured 169 ohms from hot to neutral on 9 to 16 side and open on the 1 to 8 side.Any ideas????? Link to comment Share on other sites More sharing options...
-klb- Posted November 18, 2009 Share Posted November 18, 2009 Reading the resistance across the inlet plugs on the two sides will be different, because one side has the power supply to power the card logic. The other side does not.Is this a kit you have assembled, or one that worked last year, but not this year? Link to comment Share on other sites More sharing options...
GaryMartin Posted November 19, 2009 Share Posted November 19, 2009 If this is a kit you assembled, do you have the mains power (input power) only going to the 9-16 side? Link to comment Share on other sites More sharing options...
michaelvhunter Posted November 19, 2009 Author Share Posted November 19, 2009 This is our first controller that we purchased in 2006 as an assembled bd from LOR. We installed it into a plastic enclosure then and has not changed since that time.It has worked each year until I began testing recently.Thank you for your help. Link to comment Share on other sites More sharing options...
GaryMartin Posted November 19, 2009 Share Posted November 19, 2009 Using your ohm meter set on AC volts, start from the beginning and trace your power feed with the unit plugged in.First check *both* sides of the controller for 110v from the mains feed.Does your controller have one or two 110v mains plugs? If just one, are the jumpers in place between the two banks? Link to comment Share on other sites More sharing options...
michaelvhunter Posted November 24, 2009 Author Share Posted November 24, 2009 My controller has 2 inputs and power appears to be on both sides. Link to comment Share on other sites More sharing options...
Max-Paul Posted November 24, 2009 Share Posted November 24, 2009 Mhunter,Your replies need to be a little more detailed. When you say that there is power on both sides. To where are you probing? The left or right side of the fuse. But better yet, is this the hot or load side of the fuse?If it is on the hot side of the fuse. What do you have on the load side of the fuse. Now see if you already looked at the load side of the fuse we could already be moving on to the next step. Link to comment Share on other sites More sharing options...
Robert G. Posted November 25, 2009 Share Posted November 25, 2009 Are you sure your fuses are good? Buy a new 15A fuse for channels 1-8 and it should fix. Because I just had this exact problem. Link to comment Share on other sites More sharing options...
michaelvhunter Posted November 27, 2009 Author Share Posted November 27, 2009 I moved the fuse from 9 to 16 side to 1 to 8 side and vice versa. The 1 to 8 side does not work but the 9 to 16 side still does. Link to comment Share on other sites More sharing options...
michaelvhunter Posted November 27, 2009 Author Share Posted November 27, 2009 I have swapped the fuses, and made the following measurements: All are Vac: Good Bad Neutral to q0 through q7 20V, neutral to q8 through q15 120V. Neutral to U19.1 20V U11.1 20V Neutral to u19.2 20V 20V .3 8v 9V 4 27V 13V 5 9V 8V 6 12V 21V Neutral to R20 through R27 28V, neutral to R7 through R14 15V Neutral to heat sink 40V 20V Neutral to A1 28V 15V A2 120V 20V Gate 28V 15VThanks for your help!! Link to comment Share on other sites More sharing options...
michaelvhunter Posted November 28, 2009 Author Share Posted November 28, 2009 I made a mistake in the above post. The Good voltage should be for neutral to Q8 to 15 is 120V and Bad voltage should be neutral to Q0 through Q7 is 20V.Sorry for any confusion. Link to comment Share on other sites More sharing options...
cmoore60 Posted November 28, 2009 Share Posted November 28, 2009 Almost sounds to me like a bad solder joint or 2 or more.Chuck Link to comment Share on other sites More sharing options...
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