nashou
Unmoderated Off Topic
Tech in Training.....
Posts: 1,239 
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Post by nashou on Apr 23, 2020 16:41:06 GMT -5
Ok I hooked up the V+BB ( + 15) volt again and this time it held, weird at about 500mA of current out from my DC supply.
Nothing jumped out at me, But the LED meters still go on all the way where they should only work with Audio playing.
So I hooked up my phone to line 1 in and some head phones and nothing. I thought i heard some scratchiness but I cant be sure it just wasn't the ear pice moving.
Not sure where to look next. I'm thinking the input out put board or the Term Assy board first.
Aslo I am not really sure of how to operate this thing, it has so much going on. When I first fixed it I had sound . But it was a while af=go and forgot what i had set.
And the owner just wings it too when he was using it lol . So he's no help here.
Nashou
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nashou
Unmoderated Off Topic
Tech in Training.....
Posts: 1,239
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Post by nashou on Apr 24, 2020 20:35:53 GMT -5
Ok New regulator came in. Installed and all the Meter LED stay lit. seems like other functions work . But I did not test for sound.
Oh and yesterday I was going over some things and the LEDS went out, but the fuse that always blows didn't, this time it was a 800mA fuse on the DSP board, I used a 625mA for now and with he new regulator it stayed on for a long time and survived a bunch of power on and offs with the 2 amp buss fuse.
I did not test for sound again.
I'll install a 1.5 amp fuse and give it back as maybe i am not hooking it up correctly.
This is a very complicated and jam packed unit to work on.
Unless you have some where else i should look ?
Nashou
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Post by mastertech on Apr 26, 2020 9:12:13 GMT -5
Until it is tested to see if it works I would let it go also.
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nashou
Unmoderated Off Topic
Tech in Training.....
Posts: 1,239
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Post by nashou on Apr 26, 2020 10:41:27 GMT -5
Until it is tested to see if it works I would let it go also. yeah I was putting it back together, So Decided to just put some head phones on with no source. All the meter LED's were all lit up to the max. As I was buttoning it up I heard some static through the head phones and the LED's went dark, and the digital display stayed on. I said hey wait this is how it should be. So before I finished putting all the screws in I hooked up a source and sure enough i got sound!!! But the led's were not increasing with volume increases. So I tapped the case and they would jump and Id hear static over the music. So I turned it off and opened it up and decided to pull as many of the push in ribbon connectors out and in again. Put the top back on and turned it on, everything works!! Led's with sound bounce as should when trim pots and or faders are moved. Sweet!! It needs more cleaning of the switches but I need this gone, he'll be happy it works. And I cycled the power off and on a bunch of times. I just hope the 625mA fuse holds on the DSP board, as it should be a 800mA . well at least it has a slight amount more protections  Athanasios |
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