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Post by mastertech on Dec 6, 2016 13:36:10 GMT -5
I'll look when i get back. Have to run out for a couple hours.
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nashou
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Post by nashou on Dec 6, 2016 13:40:57 GMT -5
i have work tonight. maybe later i should be home around 9:30
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Post by mastertech on Dec 6, 2016 20:41:38 GMT -5
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nashou
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Post by nashou on Dec 6, 2016 21:10:32 GMT -5
Just as I thought. Looks liek I need to connect both leads to the Equalizer board with no ground .
So the Negative to the negative side and the positive to the positive side.
Right?
I guess this will isolate the entire board from the amp. With this PS I could even remove the board completely out of the amp ?
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nashou
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Post by nashou on Dec 6, 2016 21:21:06 GMT -5
Ok Headed home. Thanks Mac. This is a head scratcher, My brain hurts lol. I almost want to give up but I have invested so much Time I dont want to quit. Might shelve it for a while then go back to it later. But for now I am all in still. I think I might order more sk363's just incase  |
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Post by mastertech on Dec 6, 2016 21:31:33 GMT -5
Just as I thought. Looks liek I need to connect both leads to the Equalizer board with no ground . So the Negative to the negative side and the positive to the positive side. Right? I don't think so. I know it kinda looks like that but I am not so sure that is what they mean. You would have to verify this before hooking it up to anything. Neg probe in gnd., and pos probe testing the + and _ posts and verify + and - voltage. I do not think it is going to test out this way. But try and see. Maybe before you plug in the P/S set your DMM to ohm scale and see if the gnd post shows connection with either of the other 2 posts. |
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nashou
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Post by nashou on Dec 6, 2016 21:54:11 GMT -5
Ok, here is what I see.
No reading between GND and either + or - in OHM mode.
When I try GND to + and - , I get 44mV on DC but on AC i get the 60 on one DMM and the other DMM i have ( the one I have been using ) I get 55 AC.
I only see a reading if I put either probe to both the + and - jacks. if I flip them I get a neg reading voltage.
Nashou
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Post by mastertech on Dec 6, 2016 22:12:09 GMT -5
That is what I thought. Then just use it as the + voltage for what you need.
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nashou
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Post by nashou on Dec 6, 2016 22:30:57 GMT -5
That is what I thought. Then just use it as the + voltage for what you need. That is the problem. If i do not connect the neg jack i get no voltage reading. Connecting the GND to the black probe and the red jack to the red probe I get no DC but switching to AC I get 56 VAC. The only Way I get 25 DC voltage is connecting probes to both - and + jack on PS respectfully. So not sure what to do? Nashou |
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Post by mastertech on Dec 6, 2016 22:35:06 GMT -5
Yes, use the neg post for gnd.. connect it to the chassis.
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nashou
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Post by nashou on Dec 6, 2016 22:47:10 GMT -5
Yes, use the neg post for gnd.. connect it to the chassis. Ok Not sure what the safe amp's are for this board? What should I set the current limit to? I dont think I was measuring the current properly before with my DMM on the board. Athanasios |
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nashou
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Post by nashou on Dec 6, 2016 23:01:38 GMT -5
Ok I think its working properly. the power supply and the Board !!!
I am not getting the voltage drop on TR 109 and 111 where the 11 volts is. Its staying high. +24.45
Aslo On TR 115 the collector has a + 21.8 volts.
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Post by mastertech on Dec 6, 2016 23:06:17 GMT -5
what do you have on R154 on the other side?
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nashou
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Post by nashou on Dec 6, 2016 23:15:56 GMT -5
22.68 , NOw I do have some resistors lifted on the left channel from before. I guess I should put them back in before I get excited.
149 and 151
I'll wait for your reply.
Nashou
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Post by mastertech on Dec 6, 2016 23:21:15 GMT -5
Yes, put everything back in except for R137 and R138. Then test the B+ and B- and adjust your B+ to = the minus and then test voltage at R153 and R154.
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