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Post by mastertech on Nov 17, 2016 20:59:46 GMT -5
Remove R147 and see if that B- comes up. We are getting close.
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nashou
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Post by nashou on Nov 17, 2016 21:04:34 GMT -5
It already is out. it was one of the parts from before.
This is what out R127,125,153,105,111,103,147
C103,109,117,119
Nashou
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Post by mastertech on Nov 17, 2016 21:14:30 GMT -5
AH, your list is not the same as mine. I don't believe I had you remove r147,R127,c109,c117,c119. But I see you do not have R137 on your list and if that is still in that could be why tr107 blew the last time.
Put all these back in and remove R137 and then check voltage on R139.
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nashou
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Post by nashou on Nov 17, 2016 21:36:03 GMT -5
AH, your list is not the same as mine. I don't believe I had you remove r147,R127,c109,c117,c119. But I see you do not have R137 on your list and if that is still in that could be why tr107 blew the last time. Put all these back in and remove R137 and then check voltage on R139. Ok those are back in And now I have these left out still , R103,105,111,153 and now R137 C103 TR 113,115,117 Can I proceed? |
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Post by mastertech on Nov 17, 2016 21:42:34 GMT -5
R125 should be out.
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nashou
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Post by nashou on Nov 17, 2016 21:49:39 GMT -5
R139 24.25 both sides
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Post by mastertech on Nov 17, 2016 21:59:22 GMT -5
Ah ha! Check B-
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nashou
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Post by nashou on Nov 17, 2016 22:02:32 GMT -5
-16.19
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Post by mastertech on Nov 17, 2016 22:03:51 GMT -5
Put TR115 back in and test voltage both sides r139.
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nashou
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Post by nashou on Nov 17, 2016 22:07:19 GMT -5
23.2 and 24.25
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Post by mastertech on Nov 17, 2016 22:11:57 GMT -5
Put TR113 and TR117 back in and recheck R139.
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nashou
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Post by nashou on Nov 17, 2016 22:18:13 GMT -5
Starts at 18 and keep rising slowly both sides
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nashou
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Post by nashou on Nov 17, 2016 22:20:30 GMT -5
-B is about -12 now
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Post by mastertech on Nov 17, 2016 22:22:52 GMT -5
Something stupid is going on here. When the + and - voltages meet at R139 they should balance to zero. First we had - voltage and now we have + voltage. You may have to just change all those TR's. I would check each TR for the correct part number in the correct location. Maybe someone changed one before and put a wrong one in. I have to go for today but post what you find so I can see tomorrow.
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nashou
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Post by nashou on Nov 17, 2016 22:35:45 GMT -5
Something stupid is going on here. When the + and - voltages meet at R139 they should balance to zero. First we had - voltage and now we have + voltage. You may have to just change all those TR's. I would check each TR for the correct part number in the correct location. Maybe someone changed one before and put a wrong one in. I have to go for today but post what you find so I can see tomorrow. What about those part i have left out? Should I try to put all the other parts in and leave out R137? All the parts are correct That is the first thing I checked . EDIT: What I might do is pull all diodes and replace with new. Then leave out TR 108 and 107 and re check voltages again. Go back to the beginning and we can go from there. Nashou |
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