Ok, they are there to lower the intensity of the signal. If it's too loud a signal that you are hearing just lower the amp's (under test) volume. Or, the volume on the amp you are using as a listening device.
If you have means to control volume intensity, the resistors are not needed, just as in the probe Martin posted.
And as Martin just stated, it will be safer because your voltage will be lower.
All the best, Daytona 500 for me now!
5e3 problem - low output!
Moderators: pompeiisneaks, Colossal
Re: 5e3 problem - low output!
Horacio
Play in tune and B#!
Play in tune and B#!
Re: 5e3 problem - low output!
By all means continue with the signal tracing advice now that you have confirmed that the voltages are OK.ben85 wrote:you were all right,it must have been a bad joint.so,i measured again and the results are
[...]
V2:
PIN:
1: 160v, click and slightly noise
2: 0v, no click
3: 1v, no click
6: 198v, click
7: 17v, click
8: 45v, click
My comments on your results: I think you should have quite a loud click from V2 pin 2. It looks like there may be a problem between pin 1 of V2 and pin 7 of V2 which is stopping the signal getting through or short circuiting it to ground. Check all the wiring and solder joints in that area (3 resistors and a capacitor).
Where did you have the volume and tone controls when you were making the measurements? Best set them all in the middle until you have found the problem.
Have you used screened cable for any of the signal connections?
EDIT: Did you *FIX* the bad joint? If not, go back and do it now, or we will be going around in circles!
Re: 5e3 problem - low output!
yes,of course i fixed it,not any noise from now on.i'll do what you said
Re: 5e3 problem - low output!
Just checking!.....ben85 wrote:yes,of course i fixed it,....
Re: 5e3 problem - low output!
i forgot to answer in one question,i used the cables Weber provides for signal connections.
well,i made this tool,so could you tell me a path to follow, please?cos i don't know exactly how signal moves through the amp and i want to ensure it in order to find the problem
well,i made this tool,so could you tell me a path to follow, please?cos i don't know exactly how signal moves through the amp and i want to ensure it in order to find the problem
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vibratoking
- Posts: 2640
- Joined: Tue Nov 10, 2009 9:55 pm
- Location: Colorado Springs, CO
Re: 5e3 problem - low output!
I'm sticking by my statement regarding checking the wiring. You have a wiring problem IMO. You said you checked the amp and highlighted the schematic, correct? Then you found problems and fixed them? How could that be? That alone is evidence that you did not check the and highlight the the thing properly. You are going to have a very hard time tracing a signal with your current knowledge. Do yourself a favor and verify that the amp is wired correctly! Don't skim over it, check it in detail. As I said before, it is easy to look at a connection and asssume it is correct. Break your paradigm and actually verify each connection and think about why that connection is there. I would suggest you take it to an experienced amp tech. It should not be this hard.
Last edited by vibratoking on Mon Feb 25, 2013 5:42 pm, edited 1 time in total.
Re: 5e3 problem - low output!
the wiring is correct,the wrong thing was a bad solder joint, vibratoking.
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vibratoking
- Posts: 2640
- Joined: Tue Nov 10, 2009 9:55 pm
- Location: Colorado Springs, CO
Re: 5e3 problem - low output!
It isn't good troubleshooting to firmly decide the wiring is correct and look someplace else. It doesn't work, the problem could be anywhere. Can you post some detailed shots of the amp in its current state?
Last edited by vibratoking on Mon Feb 25, 2013 5:57 pm, edited 1 time in total.
Re: 5e3 problem - low output!
ben85 wrote:the wiring is correct,the wrong thing was a bad solder joint, vibratoking.
There is either a bad component(s) and/or the wiring is faulty. In my book, a bad solder joint is faulty wiring.
Re: 5e3 problem - low output!
yeah,and this is maybe what i am searching for...i'll posts some photos in a while
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vibratoking
- Posts: 2640
- Joined: Tue Nov 10, 2009 9:55 pm
- Location: Colorado Springs, CO
Re: 5e3 problem - low output!
You know that your repsonses convey an attitude that you don't really want any help, right? Just letting you know in case you are unaware. You are much better off saying please and thank you in situations where you need something from others. If I was on the street and you asked me for directions I'd send you to BFE right now. Kinda like I'm helping my son with his math homework...he's always right until he's not.yeah,and this is maybe what i am searching for...i'll posts some photos in a while
In my experience, the possibility of a wiring problem is MUCH more likely than a bad component. It may be what you are looking for, but not likely, especially since your voltages look reasonable. Although you may have cooked something hard with your iron. Only you have that information. Pics would be helpful.
Re: 5e3 problem - low output!
It should not take 7 pages of the same repeat stuff to get a simple 5E3 working or am I just being a dick here 
Mark
Mark
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vibratoking
- Posts: 2640
- Joined: Tue Nov 10, 2009 9:55 pm
- Location: Colorado Springs, CO
Re: 5e3 problem - low output!
Mark, back off, can't you see I am claiming the head dick title? 
Re: 5e3 problem - low output!
ok,i'm really sorry if i insulted anyone,i really didn't meant to.maybe the language do not help me to understand me.sorry for that.actually,i wanted to agree with NickC, and say that that's the reason i want to follow the instructions that other guys gave me previously.sorry for being a moron,but i want to learn some things.i wouldn't blame you if you not answer me!also,i've followed everyone's advice till now!