On page 8, bottom right, there is a cut-out of the PT that shows the switching/lights for the Power and Standby.
What I find confusing is the number and type of componenets.......way more than what I have ever seen for a Power or SB Switch, and it is beyond my level of electronics......can somebody give me a layman's account of it.?
What I am wondering is.....
1. Does it effect the "normal" operation of the amp..... does the amp function if the lights are interrupted.?
2. Does it have an effect on the Reverb Circuit.?
Thank You
regards the down load.....sorry about that. I do not know how to separate info from a PDF. The "font" request can be ignored if it pops up.....
AC30 CC models......
Moderators: pompeiisneaks, Colossal
AC30 CC models......
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Re: AC30 CC models......
page 8 coming off the Power transformer is the power filtering(filter caps, dropping resistors) the switches are connected at the (O) labeled TT### the power LED would not effect the circuit from operating it' makes it's connection after the switch completes the circuit.
The standby switch is also mounted elsewhere and tapped into the circuit using TT###
If you are having a problem with the amp not powering after checking the fuses look at R188 it's a safety resistor intended to blow to prevent damage voltage from traveling into the cuircuit.
if you break down the schematic it is easy to read. "C" are capacitors "D" diode and "R" is resistor. Other then being tightly put together it's not much different then any other amp.
The standby switch is also mounted elsewhere and tapped into the circuit using TT###
If you are having a problem with the amp not powering after checking the fuses look at R188 it's a safety resistor intended to blow to prevent damage voltage from traveling into the cuircuit.
if you break down the schematic it is easy to read. "C" are capacitors "D" diode and "R" is resistor. Other then being tightly put together it's not much different then any other amp.
My Daughter Build Stone Henge
Re: AC30 CC models......
Thanks for the response, and good call on that fuse-able resistor.
I just do not recall seeing circuitry like this before. Granted my experience has primarily been with hand wired "boutique" type amps. I do not have much experience with modern day, PCB, "mass produced" guitar amps.
Looking at the value and rating of those caps, I would not have thought they would be part of the power supply/filter circuit......
Thank You
I just do not recall seeing circuitry like this before. Granted my experience has primarily been with hand wired "boutique" type amps. I do not have much experience with modern day, PCB, "mass produced" guitar amps.
Looking at the value and rating of those caps, I would not have thought they would be part of the power supply/filter circuit......
Thank You
Re: AC30 CC models......
You did see the note on the top of page 8
NOT USED ON TYPE 1 CLASSIC AMPS
The amps power transformer is on page 7
Page 8 is a reverb module and fx loop / foot switch card that is why the voltage of the capcitors are so low.
NOT USED ON TYPE 1 CLASSIC AMPS
The amps power transformer is on page 7
Page 8 is a reverb module and fx loop / foot switch card that is why the voltage of the capcitors are so low.
My Daughter Build Stone Henge
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camerongrieve
- Posts: 21
- Joined: Sat Nov 15, 2008 6:16 am
- Location: Newcastle, Australia
Re: AC30 CC models......
I agree the diagram is not an easy one to read. On my computer at least, you have to enlarge it so much to read the text that you lose overall perspective. Page 5 makes me feel a lot more comfortable, except it has no component values
The little arrangement there at the bottom of page 8 is generating a bipolar 30V and 15V supply using zener diode shunt regulation and capacitor filtering, so the caps only need to be rated for that voltage.
Also on page 8 on the right you can see the 5201 op-amp with +/- 15V supply going to it, and at the top, the +/- 30V going to a connector which goes god knows where
The little arrangement there at the bottom of page 8 is generating a bipolar 30V and 15V supply using zener diode shunt regulation and capacitor filtering, so the caps only need to be rated for that voltage.
Also on page 8 on the right you can see the 5201 op-amp with +/- 15V supply going to it, and at the top, the +/- 30V going to a connector which goes god knows where
Re: AC30 CC models......
Wow.....I need to open my eyes. Yeah, I see the note at the top left of page 8. That explains it.....Thank You.
It seems like no matter how hard I try, I am never able to "get" 100% of this stuff. I admire you guys that are self taught (and also you guys with a degree(s) as well). Seems like I always over look something.
Thanks Again......
It seems like no matter how hard I try, I am never able to "get" 100% of this stuff. I admire you guys that are self taught (and also you guys with a degree(s) as well). Seems like I always over look something.
Thanks Again......