Author Topic: Katana - Using the Roland GA-FC Controller  (Read 5149 times)

0 Members and 2 Guests are viewing this topic.

Offline spmartin

Katana - Using the Roland GA-FC Controller
« on: February 22, 2017, 11:01:55 AM »
I would love it if someone could point me to more information about using the Roland GA-FC foot controller. Thanks!!
« Last Edit: February 22, 2017, 11:25:38 AM by Elantric »

Offline Elantric

Re: Katana - Using the Roland GA-FC Controller
« Reply #1 on: February 22, 2017, 11:27:27 AM »
Not much to add that isn't already here
Katana FAQ
http://www.vguitarforums.com/smf/index.php?topic=19048.0






Inside the Katana Head / 100 combo box there is a sticker you apply to the GA-FC Footswitch
The GA-FC Foot Switch connects with a 1/4" TRS cable to Katana Head / 100 combo
(GA-FC is NOT supported on Katana 50 112)

On the far Right the "EFFECTS" switch toggles the GA-FC operation modes.

GA-FC Foot Switch Default mode is
* Channel Select Mode (selecting the 5 channels on Katana 100 / Head)
(CH1, CH2, CH3, CH4, Panel (manual settings))

or


* FX Select Mode  - toggle FX On/Off ( Booster/Mod, Delay/FX, Tap Tempo, Reverb, FX Loop )


Also you can add two Roland EV-5 Expression Pedal to the GA-FC Footswitch for Volume and Wah



Katana FAQ
http://www.vguitarforums.com/smf/index.php?topic=19048.0
« Last Edit: February 22, 2017, 11:42:09 AM by Elantric »

Offline spmartin

Re: Katana - Using the Roland GA-FC Controller
« Reply #2 on: February 23, 2017, 08:59:36 AM »
Thank you.

Offline ma9ick

Re: Katana - Using the Roland GA-FC Controller
« Reply #3 on: March 11, 2017, 03:44:21 PM »
A suppose Roland EV-5 is not the only expression pedal GA-FC supports. Katana's spec mentions Boss FV-500L and FV-500H - would those pedals work fine with GA-FC as well? What about Boss FV-50H or FV-30H?

Since I already have GA-FC, FS-5L or any other Boss footswitch will be pretty much redundant, but could it be utilized in any way together with GA-FC?

Offline Elantric

Re: Katana - Using the Roland GA-FC Controller
« Reply #4 on: March 11, 2017, 03:47:11 PM »
read this thread for compatible expression pedals

http://www.vguitarforums.com/smf/index.php?topic=33.0

Offline waterpicker

Re: Katana - Using the Roland GA-FC Controller
« Reply #5 on: March 22, 2017, 02:35:39 AM »
I've been having a weird problem.
100 combo.
Normally using the GA-FC with an EV-5.
Works as expected...
But when I use the amp without the GA-FC, it sometimes stops making sound.
Sometimes it plays fine until I move any knob and then there is no sound.
Really messed me up on a couple of gigs.
Now I just always bring the GA-FC and it will restore the amp to working condition.
Is this a known bug?

Offline Idgolfguy

Re: Katana - Using the Roland GA-FC Controller
« Reply #6 on: March 22, 2017, 06:27:46 AM »
Have yo got the latest firmware?

Offline Elantric

Re: Katana - Using the Roland GA-FC Controller
« Reply #7 on: March 22, 2017, 08:54:11 AM »
Quote
I've been having a weird problem.
100 combo.
Normally using the GA-FC with an EV-5.
Works as expected...
But when I use the amp without the GA-FC, it sometimes stops making sound.
Sometimes it plays fine until I move any knob and then there is no sound.
Really messed me up on a couple of gigs.
Now I just always bring the GA-FC and it will restore the amp to working condition.
Is this a known bug?


When EV-5 Expression pedal is connected , There exists internal flash memory that stores the current volume level based upon the last known EV-5 position

However should you power down the Katana while the EV-5 treadle is heel down (low volume or muted  ) , this value will be automatically written into the current preset ("CH1, CH2, CH3, CH4") and remain in flash memory.

As you discovered , only way to "recover" is reconnect the EV-5


Prevent this occurring by moving the EV-5 pedal full Toe Down ( max volume) prior to turning off the power on the Katana.

Offline jwhitcomb3

Re: Katana - Using the Roland GA-FC Controller
« Reply #8 on: March 22, 2017, 09:27:31 AM »

When EV-5 Expression pedal is connected , There exists internal flash memory that stores the current volume level based upon the last known EV-5 position

However should you power down the Katana while the EV-5 treadle is heel down (low volume or muted  ) , this value will be automatically written into the current preset ("CH1, CH2, CH3, CH4") and remain in flash memory.

As you discovered , only way to "recover" is reconnect the EV-5


Prevent this occurring by moving the EV-5 pedal full Toe Down ( max volume) prior to turning off the power on the Katana.

That's important information! Does this affect the EV-5 plugged directly into the amp, or just when the EV-5 is plugged into the GA-FC?

Offline Elantric

Re: Katana - Using the Roland GA-FC Controller
« Reply #9 on: March 22, 2017, 09:33:59 AM »
Either scenario


Quote
That's important information!

Explains why we will soon have 20,000 members ;)
« Last Edit: March 22, 2017, 09:40:03 AM by Elantric »

Offline waterpicker

Re: Katana - Using the Roland GA-FC Controller
« Reply #10 on: March 23, 2017, 02:15:44 AM »
YIKES!
That is a seriously important thing to know.

Many thanks to Elantric for the info!
Is this published on the Roland site somewhere?

I was burned 3 times by this hidden "feature"...  Imagine me very sweaty on gigs, not knowing why the Katana was not making sound.
Or soundcheck was fine and then time to play and... no sound.... sweat and major stress...  turns out if you move any knob when in this crash mode... the whole thing mutes.
Kind of a big deal.

Are we sure that the toe down on shut down will always fix this?

What if I forget, or imagine that I forgot to do the toe down at shut down...

Is the solution to always bring the GA-FC with at least one EV-5 to every gig....?  or power up the amp at home before a gig to be sure I don't need the GA-FC...?

Even then, my confidence has been severely shaken.

The EV-5 plugged directly in to the Katana doesn't resolve the issue.
It requires GA-FC with EV-5


















« Last Edit: March 23, 2017, 02:23:26 AM by waterpicker »

Offline cbeattyjr

Re: Katana - Using the Roland GA-FC Controller
« Reply #11 on: March 23, 2017, 12:27:33 PM »


I'm a little confused.  Does the GA-FC Controller have the same function to engage different effects on the Katana-50.


« Last Edit: March 23, 2017, 01:18:10 PM by Elantric »

Offline Elantric

Re: Katana - Using the Roland GA-FC Controller
« Reply #12 on: March 23, 2017, 12:50:39 PM »
Quote
I'm a little confused.  Does the GA-FC Controller have the same function to engage different effects on the Katana-50.

If you own a Katana 50 watt -many features of the Katana 100 watt models are not possible - like using the GA-FC Foot controller  = not possible

Offline cbeattyjr

Re: Katana - Using the Roland GA-FC Controller
« Reply #13 on: March 23, 2017, 01:06:09 PM »
Thanks man. :)

Offline jwhitcomb3

Re: Katana - Using the Roland GA-FC Controller
« Reply #14 on: March 29, 2017, 11:58:51 AM »

When EV-5 Expression pedal is connected , There exists internal flash memory that stores the current volume level based upon the last known EV-5 position

However should you power down the Katana while the EV-5 treadle is heel down (low volume or muted  ) , this value will be automatically written into the current preset ("CH1, CH2, CH3, CH4") and remain in flash memory.

As you discovered , only way to "recover" is reconnect the EV-5


Prevent this occurring by moving the EV-5 pedal full Toe Down ( max volume) prior to turning off the power on the Katana.

FWIW, I could not reproduce this problem using the EV-5 directly plugged in to my Katana 100 1x12.

Offline admsustainiac

Re: Katana - Using the Roland GA-FC Controller
« Reply #15 on: March 29, 2017, 01:15:37 PM »
Quote
FWIW, I could not reproduce this problem using the EV-5 directly plugged in to my Katana 100 1x12.
However it remains  a rampant problem for many folks at TGP

Its a result of using the EV-5 ( or wrong Expression pedal type  - like a Mission Pedal ) connected to the GA-FC foot pedal,

https://www.thegearpage.net/board/index.php?posts/23651194/
Quote
mjross said: ↑
Sorry for the bother but can someone help me with an issue I'm have with my Katana 100. It is kind of hard to put my finger on it but every now an then I turn the amp off and when I turn it back on, I get lights but I get no sound no matter what I do. If I do a factory reset, it comes back but I loose all my presets. I just got the Roland GA-FC pedal and I'm trying to isolate if that may be the issue. However! This seems to be intermittent and the damn thing just shuts down when it wants to. Any assistance would be greatly appreciated.


Can anyone expand on this? Is there a problem with using specific types of expression pedals with the Roland GA-FC? Are Mission Engineering pedals not compatible? Are all expression pedals (other than Roland) not compatible? Any help on this issue would be greatly appreciated.



The Katana and the GA-FC is designed for a Roland Expression pedal = an Expression pedal with a 10K ohm Linear POT that must be wired like an EV-5
« Last Edit: March 29, 2017, 01:25:26 PM by admsustainiac »

Offline jwhitcomb3

Re: Katana - Using the Roland GA-FC Controller
« Reply #16 on: March 29, 2017, 04:55:11 PM »
I was just responding to the previous post that indicated this problem also affects the EV-5 plugged directly into the amp. It doesn't.

Offline waterpicker

Re: Katana - Using the Roland GA-FC Controller
« Reply #17 on: April 03, 2017, 02:49:57 AM »

When EV-5 Expression pedal is connected , There exists internal flash memory that stores the current volume level based upon the last known EV-5 position

However should you power down the Katana while the EV-5 treadle is heel down (low volume or muted  ) , this value will be automatically written into the current preset ("CH1, CH2, CH3, CH4") and remain in flash memory.

As you discovered , only way to "recover" is reconnect the EV-5


Prevent this occurring by moving the EV-5 pedal full Toe Down ( max volume) prior to turning off the power on the Katana.

Just to clarify this issue.

This only applies to folks who are using the amp with the GA-FC and EV5 and then try to use the amp without the GA-FC.

Example... I just want to use the amp with no GA-FC.
Example.... at a gig where one expects the amp to make sound.

I am loving the Katana 100, but have had several times when it went silent without the GA-FC.

I usually bring the GA-FC with the approved EV-5,  but several times I thought I could just bring the amp without the GA-FC.
The Katana was dead or made sound until I turned a knob and then was dead.
I tried restoring sound by plugging in the EV5 to the back... NO sound.

It turns out that you need to have the GA-FC with an EV5 to get the amp up and running in this specific situation.  (flash memory as described above)

I'm thinking this applies to a very small segment of the users of the amp, but it sure messed with my gigs.

Bottom line....

WARNING
For Katana users with GA-FC and EV5 pedals.
If you are using GA-FC with EV5 on Katana, always bring these pedals.
If you attempt to use the Katana without these pedals, it may work fine, but if you failed to store the toe down volume position at shutdown, the Katana may be silent at restart.
The EV5 won't bring the sound back unless it is connected to the GA-FC.








Offline gumtown

Re: Katana - Using the Roland GA-FC Controller
« Reply #18 on: April 03, 2017, 03:54:52 AM »
Does leaving the last position of the EV-5 pedal in max volume help,
as opposed to leaving the EV-5 in minimum volume then switching off the amp... ?

I'm guessing the last thing you do after using the EV-5 is set it to volume min/off position before powering down the Katana.

Sounds like a firmware over-sight, they should have the Katana 'look if the GA-FC is missing' from last use,
and change the EXP pedal value to max volume on start up.
« Last Edit: April 03, 2017, 03:58:49 AM by gumtown »
Free "GR-55 FloorBoard" editor software from http://sourceforge.net/projects/grfloorboard/

Offline Elantric

Re: Katana - Using the Roland GA-FC Controller
« Reply #19 on: April 03, 2017, 08:22:02 AM »
Actually last thing you do after using the GA-FC with EV-5 is set EV-5 volume to Max On (toe down )
position before powering down the Katana.

This prevents the Mute condition that might occur next time you use the amp without GA-FC

Offline waterpicker

Re: Katana - Using the Roland GA-FC Controller
« Reply #20 on: April 05, 2017, 04:11:20 AM »
Thanks Elantric.

You got it right.

Press the EV-5 to toe down when you turn off the Katana.

In my case, at the end of a gig, I'm often thinking about other things and the toe down position of the EV-5 is far from my mind.
And even if I did it, I'd still worry whether I did or not... or if the Katana got the message and stored it.

Again, I know that my case is very specific and will not apply to most users.

I was bitten three times before I figured it out and it was a very stressful experience.

I assumed that I could plug my guitar in and get sound.

Beyond that, I'm loving the sound of the Katana and using it on many gigs.
Always with the GA-FC and EV-5.... Gotta have those to be sure it will be able to make sound.

Funny, first time I've ever had to worry about an amp in this way.

First time at an awards ceremony and it just went dead.


Offline fificap

Re: Katana - Using the Roland GA-FC Controller
« Reply #21 on: June 14, 2017, 04:16:47 PM »
read this thread for compatible expression pedals

http://www.vguitarforums.com/smf/index.php?topic=33.0

Hi, i've read the thread for compatible expression pedal but i have to confess that i'm a little lost (not enough expert on electronics  :P).

I bought a second hand FV-50H thinking that it was the old model of FV-500H. Now i understand that it's not really comparable as the 50 series is a volume pedal when the 500 serie is volume+expression pedal, at least the impedance seems really different !

My questions are:
- Can i use it (FV-50H) with Katana head directly in the "sel ch1 ch2 / exp pedal" to
control volume? effect like wha? drive level for boost?
- Do i risk to break something by trying it?
- I should receive my GA-FC footswitch this week, can i use it (FV-50H) with it?

Thanks for your help,
Philippe


Offline Elantric

Re: Katana - Using the Roland GA-FC Controller
« Reply #22 on: June 14, 2017, 04:32:14 PM »
Not much you can do with Katana and  FV-50H

could run Guitar>  FV-50H> Katana Guitar Input 

Offline fificap

Re: Katana - Using the Roland GA-FC Controller
« Reply #23 on: June 14, 2017, 04:45:47 PM »
thanks,

now i have a FV-50H to sell !

Offline bob303

Re: Katana - Using the Roland GA-FC Controller
« Reply #24 on: June 18, 2017, 03:38:57 PM »

When EV-5 Expression pedal is connected , There exists internal flash memory that stores the current volume level based upon the last known EV-5 position

However should you power down the Katana while the EV-5 treadle is heel down (low volume or muted  ) , this value will be automatically written into the current preset ("CH1, CH2, CH3, CH4") and remain in flash memory.

As you discovered , only way to "recover" is reconnect the EV-5


Prevent this occurring by moving the EV-5 pedal full Toe Down ( max volume) prior to turning off the power on the Katana.

Thanks!!!!!!!!!!!!!!!!!!!!!  I could not figure out what the hell was causing the Katana to go silent everytime I moved the pedal or knob. 

 

Blog