Line6 Verbzilla true bypass...it's possible?
- AAntonio
- Breadboard Brother
I don't even know where to start.plush wrote:Ofc you can. But you are gonna lose dem trails.AAntonio wrote:hello everyone guys
do you think it is possible to make this pedal true bypass?
the wiring diagram is not found.
- plush
- Cap Cooler
Well, the pedal base design is quite complicated. Redesigning it for TBP is both still achievable and pontless.AAntonio wrote:I don't even know where to start.plush wrote:Ofc you can. But you are gonna lose dem trails.AAntonio wrote:hello everyone guys
do you think it is possible to make this pedal true bypass?
the wiring diagram is not found.
Just imagine the base board having 5 power buses. 5 rails, Carl.
Why on earth would one decide to convert it to TBP? Tonesuck? Nah.
Still, your current course should look something like this:
You cut the traces coming from the physical I/Os, then take couple of small signal relays (momentary, i suppose) and wire them them as a bypasses for both signal chains (mono/stereo). Then you feed both relays' FX loops back to the base board. There is no need for drilling a hole for a 3pdt and cutting the control circuitry, just omit FET switching stage on the main board and and rewire controlling signal to switch on/off previously installed relays.
And, BAM! - TBP achieved, while keeping most most of the base circuitry intact. Not mentioning that the insides now look like a total mess of wires and hot glue. Btw, using relays will bump pedal's current draw a bit (~30-60mA).
There's no easy guide on how to do this.
Learn circuit design.
- AAntonio
- Breadboard Brother
quite difficultplush wrote:Well, the pedal base design is quite complicated. Redesigning it for TBP is both still achievable and pontless.AAntonio wrote:I don't even know where to start.plush wrote:Ofc you can. But you are gonna lose dem trails.AAntonio wrote:hello everyone guys
do you think it is possible to make this pedal true bypass?
the wiring diagram is not found.
Just imagine the base board having 5 power buses. 5 rails, Carl.
Why on earth would one decide to convert it to TBP? Tonesuck? Nah.
Still, your current course should look something like this:
You cut the traces coming from the physical I/Os, then take couple of small signal relays (momentary, i suppose) and wire them them as a bypasses for both signal chains (mono/stereo). Then you feed both relays' FX loops back to the base board. There is no need for drilling a hole for a 3pdt and cutting the control circuitry, just omit FET switching stage on the main board and and rewire controlling signal to switch on/off previously installed relays.
And, BAM! - TBP achieved, while keeping most most of the base circuitry intact. Not mentioning that the insides now look like a total mess of wires and hot glue. Btw, using relays will bump pedal's current draw a bit (~30-60mA).
There's no easy guide on how to do this.
Learn circuit design.
- Cub
- Cap Cooler
What about building a loop box ?
http://beavisaudio.com/techpages/loopers/
http://beavisaudio.com/techpages/loopers/
I wish I were a chestnut tree, nourished by the sun.
With twigs and leaves and branches and conkers by the ton.
With twigs and leaves and branches and conkers by the ton.
- Dirk_Hendrik
- Old Solderhand
Information
It has an input and an output so TB-ing is possible. In essence it means building the contents of a TB box inside your pedal.
- AAntonio
- Breadboard Brother
to tell the truth the pedal doesn't work anymore and it doesn't even turn on the led, for this reason I wanted to try to eliminate the bypass part to give the circuit directly the 9v and try to find the fault, a bad idea?
- plush
- Cap Cooler
This is not how it's done.AAntonio wrote:to tell the truth the pedal doesn't work anymore and it doesn't even turn on the led, for this reason I wanted to try to eliminate the bypass part to give the circuit directly the 9v and try to find the fault, a bad idea?
You see, the pedal might be disfunctional due, lets say, power outage (+3.2v) feeding the logic circuitry. This power rail is also used by DSP effect block. So, if we convert the pedal to true bypas it still might not work, since there is no power present do feed the DSP.
- AAntonio
- Breadboard Brother
I understoodplush wrote:This is not how it's done.AAntonio wrote:to tell the truth the pedal doesn't work anymore and it doesn't even turn on the led, for this reason I wanted to try to eliminate the bypass part to give the circuit directly the 9v and try to find the fault, a bad idea?
You see, the pedal might be disfunctional due, lets say, power outage (+3.2v) feeding the logic circuitry. This power rail is also used by DSP effect block. So, if we convert the pedal to true bypas it still might not work, since there is no power present do feed the DSP.
what can i check and how?
the voltages?
- plush
- Cap Cooler
AAntonio wrote:I understoodplush wrote:This is not how it's done.AAntonio wrote:to tell the truth the pedal doesn't work anymore and it doesn't even turn on the led, for this reason I wanted to try to eliminate the bypass part to give the circuit directly the 9v and try to find the fault, a bad idea?
You see, the pedal might be disfunctional due, lets say, power outage (+3.2v) feeding the logic circuitry. This power rail is also used by DSP effect block. So, if we convert the pedal to true bypas it still might not work, since there is no power present do feed the DSP.
what can i check and how?
the voltages?
Well, you take your time, get datasheets for logic chips (for both MCUs, external memory and DSPs), find their VCC-in pins and check voltage with your DMM. This is only the beginning and it's easiest part.
- roseblood11
- Tube Twister
- roseblood11
- Tube Twister
- plush
- Cap Cooler
Did you use diode measuring function on your DMM?AAntonio wrote:I believe that Pin 1 and 3 of Diode D3 is in short
I find it difficult to unsolder it, I have a normal welder,
it would serve the air
In one position it should indicate voltage drop (in some DMMs without such function it'd indicate a shortage)
In the other position (if you swap leads) the diode would not conduct and your DMM will show close to infinite resistance
You need to swap your leads when measuring to be sure there is a shortage, if you did not do that before.
- AAntonio
- Breadboard Brother
plush wrote:Did you use diode measuring function on your DMM?AAntonio wrote:I believe that Pin 1 and 3 of Diode D3 is in short
I find it difficult to unsolder it, I have a normal welder,
it would serve the air
In one position it should indicate voltage drop (in some DMMs without such function it'd indicate a shortage)
In the other position (if you swap leads) the diode would not conduct and your DMM will show close to infinite resistance
You need to swap your leads when measuring to be sure there is a shortage, if you did not do that before.
yes I used the diode measurement function.
I exchanged the cables, see photo
and in both cases there is the beep of the DMM
- plush
- Cap Cooler
Just curious, why did you decide to start with this particular component?AAntonio wrote:now I don't have this component.
can I do some tests in other ways?