#1
So, I just got my JCA20H today, and I wanted to try some different tubes in it before I made my obligatory NGD thread, but I can't get the back off of the head to get to the tubes.

Anybody got insight on how to get to the tubes?
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Roland Cube / Vox Valvetronix / Peavey Vypyr / Hitler > Line 6 Spider.
#2
how does the back panel affix to the shell?

pics!
I wondered why the frisbee was getting bigger, then it hit me.
#3
Everyone is entitled to an opinion.

Feel free to express yours so I can make an informed judgement about how stupid you are.
#4
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I don't think so.

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#6
I removed the 6 screws on the back panel, but could not get the panel to budge.
Are there more than those 6 screws holding the panel on?
Quote by Duv
And smack an open A chord and hold the body and see if it vibrates like a middle-aged woman's best friend.


Quote by guitarxo
I hope you get raped by a bayonet


Quote by beckyjc
Roland Cube / Vox Valvetronix / Peavey Vypyr / Hitler > Line 6 Spider.
#7


I removed the 6 screws that are circled, and could not get the back panel to budge.
I tried pulling the panel and had a friend hold the head still, but to no avail.
Am I missing something?
Quote by Duv
And smack an open A chord and hold the body and see if it vibrates like a middle-aged woman's best friend.


Quote by guitarxo
I hope you get raped by a bayonet


Quote by beckyjc
Roland Cube / Vox Valvetronix / Peavey Vypyr / Hitler > Line 6 Spider.
#8
Quote by larson8er


I removed the 6 screws that are circled, and could not get the back panel to budge.
I tried pulling the panel and had a friend hold the head still, but to no avail.
Am I missing something?


mojostompboxes.com
#9
Brute force?
The back panel was starting to flex when I was pulling on it.
I'm afraid that I'll break it if I pull to hard.
Is there a trick to getting the panel loose? or should I just go for it and risk snapping the panel?
Quote by Duv
And smack an open A chord and hold the body and see if it vibrates like a middle-aged woman's best friend.


Quote by guitarxo
I hope you get raped by a bayonet


Quote by beckyjc
Roland Cube / Vox Valvetronix / Peavey Vypyr / Hitler > Line 6 Spider.
#11
and never put it back on.
I wondered why the frisbee was getting bigger, then it hit me.
#12
I had the same problem with my JCA20H. There's nothing besides those screws holding it in - for some reason, it was just stuck. I used a flathead screwdrive and just carefully worked it around the panel (take care not to damage the tolex) until it started to come unstuck. Hopefully a bit of leverage and force will work for you.
Gear
Highway One Tele (w/Custom Shop 51 Nocaster pickups)
Standard Tele (modded to Nashville specs)
Reverend Roundhouse

Orange Rockerverb 50 MKI
Vox AC4c1
Jet City JCA20H

And pedals!



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#14
its because the glue under the tolex dries after the planel is shoved in place.

it's snug.

man up and pull from the inside of the head as close to the corners as you can so that the back panel doesn't bust into two pieces.
I wondered why the frisbee was getting bigger, then it hit me.
#15
Quote by gregs1020
its because the glue under the tolex dries after the planel is shoved in place.

it's snug.

man up and pull from the inside of the head as close to the corners as you can so that the back panel doesn't bust into two pieces.


most important piece of advice right there. don't snap the panel, pull at ends a screw driver with a guitar pick on the back of it to avoid damage to tolex via the screw driver and it will pop right open.
WTLT 2014 GG&A

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#16
Thanks everyone for the advice! I'll pull the back off tonight and poke around.
Quote by Duv
And smack an open A chord and hold the body and see if it vibrates like a middle-aged woman's best friend.


Quote by guitarxo
I hope you get raped by a bayonet


Quote by beckyjc
Roland Cube / Vox Valvetronix / Peavey Vypyr / Hitler > Line 6 Spider.