Vox AC15cc1 won't turn on.

[kngd]

my amp suddenly won't turn on. I checked for voltage at TT5 and TT6 nothing so i assume my power transformer died.

link to schematics
http://www.guitarnewsdaily.com/wp-co...matic_only.pdf /

[The Dude]

FYI, the link you posted is "ERROR 404- NOT FOUND".

[kngd]

link fixed. also shouldn't it be DC voltage? I flip my meter to AC and got 115v. doesnt the transformer transform it to DC?

[The Dude]

Nope. The voltage out of the transformer will be AC. If you have 115VAC there, the transformer is at least partially working. Do the filaments light? Does the power indicator LED come on?

[kngd]

Do the filaments light? no
Does the power indicator LED come on? no
fuses are good
only reason i started digging around inside is bcuz the tubes look good whether they are is another thing

[The Dude]

Ok, I'm going to back up here. When you said you got 115VAC, was that from TT5 to TT6, to ground, to some other point, etc. Can you explain what exactly you measured?

[kngd]

where i got voltage was from N or L to TT5-TT6.
i got no voltage from ground.

[The Dude]

I'm not sure why you would measure that, but let's start over. My initial posts assumed that you had voltage from TT5 to TT6.

1) Turn the unit on, but leave it unplugged. Measure the resistance across the blades of the power cord and post the reading here.
2) There will be 4 wires going to the power switch- 2 from the input/power cord and 2 that go to the transformer. With the unit plugged in and power switch on, measure the AC voltage across the two wires that go to the transformer. Post the reading here.
3) Be careful not to slip with your probes and be careful you don't kill yourself!

[kngd]

I'm not sure why you would measure that - easy post to get to coming off of the transformer

1) Turn the unit on, but leave it unplugged. Measure the resistance across the blades of the power cord and post the reading here. - the meter did NOT move
2) There will be 4 wires going to the power switch- 2 from the input/power cord and 2 that go to the transformer. With the unit plugged in and power switch on, measure the AC voltage across the two wires that go to the transformer. Post the reading here. - i did this earlier i got somewhere around 120 or so i put the unit up for the night.

[The Dude]

If you have 120VAC across the transformer primary wires and no resistance reading across the blades of the AC cord, the transformer primary is open.

[kngd]

= bad transformer i assume.

i understand the transformer is open zero resistance

here's a treat https://www.youtube.com/watch?v=R5XJDxe7TVY

[The Dude]

Unfortunately, yes- bad transformer. (actually infinite resistance- zero resistance would be a short.)

[kngd]

at least it fixable for fairly cheap i'm a pretty good parts changer

[g1]

Not sure what you are considering for a 'cheap' power transformer, the standard ones (for vintage AC15) won't work in the CC1 as it needs the extra winding for the low voltage supply.

[kngd]

i see the problem is not payng for it $90. The problem is finding one. I only found one online and it's out of stock. If someones got a parts guy let me know.

https://www.guitar-parts.com/catalog...1-530000000075

From what I've been reading people didn't really like this amp. Funny i couldn't make it sound bad when it worked. I got it in a trade about 5 mos ago for a 90's blues jr and feel in love with it. The junior was a workhorse on everyday all the time had it for about 5yrs replaced power tubes 2x. Hundreds of hours on it bet it's still working.