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March 29, 2024, 12:38:20 AM

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#71
Amplifier Discussion / Re: Help me troubleshoot my LA...
Last post by rileyismycopilot - March 17, 2024, 10:23:21 AM
Hey!

Thanks for your answers and sharing the schemo. Great stuff.

Could someone please help me pinpoint an area of the circuit / component, according to the symptoms I have described?

Could my two problems be related?

Thanks!
#72
The Newcomer's Forum / Re: saturated's all encompassi...
Last post by saturated - March 16, 2024, 05:30:12 PM
Thank you sir !!

I'm still struggling mightily with it.

Anyhow here is my new milliamp reading super duper current probe.

This time if I make a boo boo it has a 500 mA fuse.

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Speaking of struggling I did a crappy job on this banana 🍌 plug.
Maybe it wasn't supposed to be soldered idk

 :-X

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 :P

#73
Amplifier Discussion / Re: Marshall VS100R transistor...
Last post by g1 - March 16, 2024, 04:13:22 PM
Check that T7 and T8 and their diodes are ok. Check all 4 of the 0R33 5W resistors.
Power up on the bulb with no load connected.
Measure DC volts at e,b,c, of T4, T6, T9, T12.
#75
Amplifier Discussion / Re: Marshall VS100R transistor...
Last post by markorock37 - March 15, 2024, 03:39:54 PM
100W bulb. DC was present with no load.
#76
Amplifier Discussion / Re: Help me troubleshoot my LA...
Last post by g1 - March 15, 2024, 01:22:40 PM
Service manual attached.
Sounds like 'Lo' input is the higher gain circuit (meant for lower output pickups) which is opposite to the usual arrangement.
#77
The Newcomer's Forum / Re: saturated's all encompassi...
Last post by saturated - March 15, 2024, 10:59:49 AM
Ok I finally got a sound out of it
It actually sounds AWESOME 👍😎

one thing to note before you toss this through a window....the waah pedal is volume  :-X
If the pedal is all the way down it's not gonna work
:-X  :'(
Also I had to use 1/4 L Mono out to amp.

As far as all the other stuff my head is spinning it's gonna take some time

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#78
The Newcomer's Forum / Re: saturated's all encompassi...
Last post by saturated - March 15, 2024, 10:19:28 AM
Ok I think it's guitar in

And out is fx send

 :P
#79
The Newcomer's Forum / Re: saturated's all encompassi...
Last post by saturated - March 15, 2024, 10:11:55 AM
Yesterday a coworker brought a line6 pod 500 to work he said take it home and try it out.
I get it home and can't even figure out how to connect it to an amp.  Watched one video about it and still got confused.  I will Google it some more today.

Guitar in is easy enough.  But then there were two outlets "unbalanced mono" each left and right.

Uughhh  >:(

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I get it that there's all kind of crazy stuff people can do that's why all the extra jacks etc

But I'm not looking to be the next Tom Scholz
I just want to hook it up like a pedal and get some overdrive and delay flange etc

 :-[
#80
Amplifier Discussion / Re: Help me troubleshoot my LA...
Last post by Loudthud - March 14, 2024, 08:30:16 PM
Probably a bad connection on the preamp circuit board.

Do you have the schematic correct for you amp? Post it or a link.