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Search: Posts Made By: Gammaray
Forum: Troubleshooting Audio Equipment 09-16-2018, 07:10 AM
Replies: 77
Views: 2,680
Posted By Gammaray
Re: Electron Kinetics Eagle 2C amplifier problem

Thanks, but not sure how I could draw up these traces for the schematics. Seems to be a little out of my noob hands..LOL
Forum: Troubleshooting Audio Equipment 09-16-2018, 07:09 AM
Replies: 77
Views: 2,680
Posted By Gammaray
Re: Electron Kinetics Eagle 2C amplifier problem

OK, I see. So would I have to de-solder these components to check for resistance, or can I leave them mounted to the pcb and check resistance?
Forum: Troubleshooting Audio Equipment 09-14-2018, 10:36 AM
Replies: 77
Views: 2,680
Posted By Gammaray
Forum: Troubleshooting Audio Equipment 09-12-2018, 09:17 PM
Replies: 77
Views: 2,680
Posted By Gammaray
Re: Electron Kinetics Eagle 2C amplifier problem

Would it be ok to take the pcb off from the amp chassis and do some resistance comparisons? I mean is this a good way to find faulty components without worrying about if I may accidently touch some...
Forum: Troubleshooting Audio Equipment 09-12-2018, 03:58 AM
Replies: 77
Views: 2,680
Posted By Gammaray
Re: Electron Kinetics Eagle 2C amplifier problem

I measured that transistor (2SC2168) from B to E and got 1.292 M ohms..Does this seem bad?
Forum: Troubleshooting Audio Equipment 09-11-2018, 07:23 PM
Replies: 77
Views: 2,680
Posted By Gammaray
Re: Electron Kinetics Eagle 2C amplifier problem

OK, I will do that and post the resistance. Should I discharge the caps before I take a measurement of the transistor's resistance?

Thanks!
Forum: Troubleshooting Audio Equipment 09-11-2018, 01:52 PM
Replies: 77
Views: 2,680
Posted By Gammaray
Re: Electron Kinetics Eagle 2C amplifier problem

Sorry for the lengthy thread! Here are the voltages from the transistors I measured from each side:

(CHANNEL A) Top Transistors
#1 Sanken (2SC2774) B=.631 DCV/ C=48.0 DCV/ E=.018 DCV
#2 Sanken...
Forum: Troubleshooting Audio Equipment 09-11-2018, 01:29 AM
Replies: 77
Views: 2,680
Posted By Gammaray
Re: Electron Kinetics Eagle 2C amplifier problem

It appears to be channel (B) that is bad. I was told that the transistor is not on, and from the voltage levels it looks like it's shorted B/E,

#5(2SC2168) B= -44.8 DCV/ C= -2.27DCV/ E= -44.8 DCV...
Forum: Troubleshooting Audio Equipment 09-10-2018, 01:35 PM
Replies: 77
Views: 2,680
Posted By Gammaray
Re: Electron Kinetics Eagle 2C amplifier problem

Looks like this thread has gone to crap..lol..Guess I'll just replace everything on the board! :crying:

I imagine that transformer and the larger gauge wires will last another 20 years or so?
...
Forum: Troubleshooting Audio Equipment 09-06-2018, 02:29 PM
Replies: 77
Views: 2,680
Posted By Gammaray
Re: Electron Kinetics Eagle 2C amplifier problem

Now I am wondering after all the measurements and instructions I have followed, Can anyone tell me what I should do next? I mean is there any indication from all the measurements thus far as being...
Forum: Troubleshooting Audio Equipment 09-05-2018, 08:44 PM
Replies: 77
Views: 2,680
Posted By Gammaray
Re: Electron Kinetics Eagle 2C amplifier problem

Sorry, but you lost me there? I'm not sure what you are speaking about. Are you saying that I should adjust the blue trimmer pots and check the voltage on the large transistors? If so, I can do that...
Forum: Troubleshooting Audio Equipment 09-05-2018, 07:32 PM
Replies: 77
Views: 2,680
Posted By Gammaray
Re: Electron Kinetics Eagle 2C amplifier problem

OK, I measured the diodes by that trimmer pot. Here are the voltages for side (A)
From left to right: .488DCV, .640VDC, .633VDC, .524VDC

Side (B) From left to right: .480DCV, .640VDC, .633VDC,...
Forum: Troubleshooting Audio Equipment 09-05-2018, 02:43 PM
Replies: 77
Views: 2,680
Posted By Gammaray
Re: Electron Kinetics Eagle 2C amplifier problem

Hi Bud! I did check the DCV at the speaker terminals and posted it here earlier in post #28. You may have just overlooked it. No problem sir. Here are the measurements:

Speaker Outputs:

...
Forum: Troubleshooting Audio Equipment 09-05-2018, 02:38 PM
Replies: 77
Views: 2,680
Posted By Gammaray
Re: Electron Kinetics Eagle 2C amplifier problem

Hi Pete! Please pardon my lack of knowledge, but I am unsure which ones around the blue trimmer pots would be the diodes? It looks like all resistors to me. Looking at the blue colored trimmer pot on...
Forum: Troubleshooting Audio Equipment 09-04-2018, 08:03 AM
Replies: 77
Views: 2,680
Posted By Gammaray
Re: Electron Kinetics Eagle 2C amplifier problem

Both diodes measured at around .740 DCV
Forum: Troubleshooting Audio Equipment 09-03-2018, 04:38 PM
Replies: 77
Views: 2,680
Posted By Gammaray
Re: Electron Kinetics Eagle 2C amplifier problem

OK, Thanks! Should I set the negative probe (DMM) to the green wires as I did for testing the transistors? If so, I can just use the positive probe to place on the diodes to test the voltages. One...
Forum: Troubleshooting Audio Equipment 09-03-2018, 02:58 PM
Replies: 77
Views: 2,680
Posted By Gammaray
Re: Electron Kinetics Eagle 2C amplifier problem

OK, but noob question, should I measure these diodes with or without the main power on? Thanks!
Forum: Troubleshooting Audio Equipment 09-03-2018, 02:22 PM
Replies: 77
Views: 2,680
Posted By Gammaray
Re: Electron Kinetics Eagle 2C amplifier problem

OK, I'll try that..Thanks!!!

BTW, what do you think with these voltages I have taken for the transistors? Do they seem to be OK, or should I replace any? Not sure what to do at this point. I know...
Forum: Troubleshooting Audio Equipment 09-03-2018, 11:29 AM
Replies: 77
Views: 2,680
Posted By Gammaray
Re: Electron Kinetics Eagle 2C amplifier problem

I just finished measuring the bottom transistors! I also attached 2 photos showing the numbered transistors marked in red from each side. Here are the voltages I have measured:

#1(2SA1170) B= .603...
Forum: Troubleshooting Audio Equipment 09-03-2018, 08:53 AM
Replies: 77
Views: 2,680
Posted By Gammaray
Re: Electron Kinetics Eagle 2C amplifier problem

OK guys Thanks! I have some 1/4 and 1/2 watt resistors, but not sure if I were to parallel them to get a higher wattage and also what ohm value should I use?

I saw a video on someone using an...
Forum: Troubleshooting Audio Equipment 09-02-2018, 06:19 PM
Replies: 77
Views: 2,680
Posted By Gammaray
Re: Electron Kinetics Eagle 2C amplifier problem

OK, I will try my best to get those with the voltages. I may have to do a little mod to get to the harder ones.

I have some questions about the 2 big caps. I wanted to make sure that these caps...
Forum: Troubleshooting Audio Equipment 09-02-2018, 04:29 PM
Replies: 77
Views: 2,680
Posted By Gammaray
Re: Electron Kinetics Eagle 2C amplifier problem

Those are located at the bottom and more difficult to get to. I will try and see if I can do it. I'll post back the measurements if I can. Thanks!
Forum: Troubleshooting Audio Equipment 09-02-2018, 09:04 AM
Replies: 77
Views: 2,680
Posted By Gammaray
Re: Electron Kinetics Eagle 2C amplifier problem

P.S. Here is a photo of the bottom of those big caps. It appears as if something leaked out a little!
Forum: Troubleshooting Audio Equipment 09-02-2018, 08:39 AM
Replies: 77
Views: 2,680
Posted By Gammaray
Re: Electron Kinetics Eagle 2C amplifier problem

I connected the big caps back up and took the following measurements. I have included 2 photos of each side of the board. Each transistor is marked with a number in red. Also, I measured all of the...
Forum: Troubleshooting Audio Equipment 09-01-2018, 08:51 AM
Replies: 77
Views: 2,680
Posted By Gammaray
Re: Electron Kinetics Eagle 2C amplifier problem

I had to remove the transformer to get some photos of the whole board. I also noticed that a capacitor on the board appears to may have leaked. I also can see that the other one like it on the other...
Showing results 1 to 25 of 120

 
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