Zvex - Fuzz Factory  [traced]

General documentation, gut shot, schematic links, ongoing circuit tracing, deep thoughts ... all about boutique stompboxes.
User avatar
Scruffie
Opamp Operator
Information
Posts: 1740
Joined: 13 Mar 2009, 17:59
Location: UK
Has thanked: 28 times
Been thanked: 169 times

Post by Scruffie »


User avatar
trad3mark
Resistor Ronker
Information
Posts: 330
Joined: 08 Mar 2009, 15:55
my favorite amplifier: Vox Valvetronix Series
Completed builds: Super Hard On
Fuzz Factory
Aenima/Torn's Peaker (2 in 1 box with toggle switch)
Valvecaster Deluxe (Boost before VC)
Proco Rat (Mod to power jack, and input cap changed)
87% PillowStone
87% GlassJaw
Location: Ireland (Dublin/Waterford)
Been thanked: 1 time

Post by trad3mark »

cool. i'll try that a bit later. still in uni at the moment. History is almost as annoying as the ff.....

almost....

User avatar
trad3mark
Resistor Ronker
Information
Posts: 330
Joined: 08 Mar 2009, 15:55
my favorite amplifier: Vox Valvetronix Series
Completed builds: Super Hard On
Fuzz Factory
Aenima/Torn's Peaker (2 in 1 box with toggle switch)
Valvecaster Deluxe (Boost before VC)
Proco Rat (Mod to power jack, and input cap changed)
87% PillowStone
87% GlassJaw
Location: Ireland (Dublin/Waterford)
Been thanked: 1 time

Post by trad3mark »

so i can finally start working on this again, to get it working. After a day of soldering, i have no LED, and no True Bypass. when plugged in etc, whether the switch is on or off, all i get is hum. Same case with or without a battery. ideas?

User avatar
Scruffie
Opamp Operator
Information
Posts: 1740
Joined: 13 Mar 2009, 17:59
Location: UK
Has thanked: 28 times
Been thanked: 169 times

Post by Scruffie »

Well if theres no true bypass, i'd say you must have wired the switch & or jacks wrong, check that first.

User avatar
trad3mark
Resistor Ronker
Information
Posts: 330
Joined: 08 Mar 2009, 15:55
my favorite amplifier: Vox Valvetronix Series
Completed builds: Super Hard On
Fuzz Factory
Aenima/Torn's Peaker (2 in 1 box with toggle switch)
Valvecaster Deluxe (Boost before VC)
Proco Rat (Mod to power jack, and input cap changed)
87% PillowStone
87% GlassJaw
Location: Ireland (Dublin/Waterford)
Been thanked: 1 time

Post by trad3mark »

just to doublecheck, with the input jack, the pins (starting with the one closest to the hole) is Ground, switched (battery -ve) and hot, right?

User avatar
Scruffie
Opamp Operator
Information
Posts: 1740
Joined: 13 Mar 2009, 17:59
Location: UK
Has thanked: 28 times
Been thanked: 169 times

Post by Scruffie »

Correct.

User avatar
trad3mark
Resistor Ronker
Information
Posts: 330
Joined: 08 Mar 2009, 15:55
my favorite amplifier: Vox Valvetronix Series
Completed builds: Super Hard On
Fuzz Factory
Aenima/Torn's Peaker (2 in 1 box with toggle switch)
Valvecaster Deluxe (Boost before VC)
Proco Rat (Mod to power jack, and input cap changed)
87% PillowStone
87% GlassJaw
Location: Ireland (Dublin/Waterford)
Been thanked: 1 time

Post by trad3mark »

well then i cant see any reason why it shouldn't work...

User avatar
trad3mark
Resistor Ronker
Information
Posts: 330
Joined: 08 Mar 2009, 15:55
my favorite amplifier: Vox Valvetronix Series
Completed builds: Super Hard On
Fuzz Factory
Aenima/Torn's Peaker (2 in 1 box with toggle switch)
Valvecaster Deluxe (Boost before VC)
Proco Rat (Mod to power jack, and input cap changed)
87% PillowStone
87% GlassJaw
Location: Ireland (Dublin/Waterford)
Been thanked: 1 time

Post by trad3mark »

success! true bypass!! that's one step closer...

i'm guessing it's possibly a problem with the pots. scruffie, do you have a layout you've used for your FF builds that is 200% verified?

User avatar
trad3mark
Resistor Ronker
Information
Posts: 330
Joined: 08 Mar 2009, 15:55
my favorite amplifier: Vox Valvetronix Series
Completed builds: Super Hard On
Fuzz Factory
Aenima/Torn's Peaker (2 in 1 box with toggle switch)
Valvecaster Deluxe (Boost before VC)
Proco Rat (Mod to power jack, and input cap changed)
87% PillowStone
87% GlassJaw
Location: Ireland (Dublin/Waterford)
Been thanked: 1 time

Post by trad3mark »

further update, incase it's any use to solving my problem.
there's certain points when turned on, that when i touch, i get mega mega buzz. It mainly happens at the -ve of C1, and a few other places. I'm going by this schem by the way: https://i189.photobucket.com/albums/z93 ... uzz333.png

User avatar
Scruffie
Opamp Operator
Information
Posts: 1740
Joined: 13 Mar 2009, 17:59
Location: UK
Has thanked: 28 times
Been thanked: 169 times

Post by Scruffie »

It's the same one that I posted with the offboard wiring & the same one Igloo posted (it's his original layout with the pot wiring corrected) Its 300% verified and i've posted my onboardwiring layout I used too if that'll help (the overall build is alot easier and neater with it like that) along with the track cut images for each board, are you still doing all your boards with reverse track cuts or whatever you did? That's gotta over complicate things...

Anyway other these layouts I can't see what else your doing wrong!
Attachments
Zvex Fuzz This one Track Cuts.gif
Zvex Fuzz On Board Pots Track Cuts.gif
Zvex Fuzz On Board Pots.gif
Zvex Fuzz Factory This One.gif

User avatar
trad3mark
Resistor Ronker
Information
Posts: 330
Joined: 08 Mar 2009, 15:55
my favorite amplifier: Vox Valvetronix Series
Completed builds: Super Hard On
Fuzz Factory
Aenima/Torn's Peaker (2 in 1 box with toggle switch)
Valvecaster Deluxe (Boost before VC)
Proco Rat (Mod to power jack, and input cap changed)
87% PillowStone
87% GlassJaw
Location: Ireland (Dublin/Waterford)
Been thanked: 1 time

Post by trad3mark »

and just to tripple check, all those pots are 321 right?

User avatar
Scruffie
Opamp Operator
Information
Posts: 1740
Joined: 13 Mar 2009, 17:59
Location: UK
Has thanked: 28 times
Been thanked: 169 times

Post by Scruffie »

Yes, every one of them.

User avatar
trad3mark
Resistor Ronker
Information
Posts: 330
Joined: 08 Mar 2009, 15:55
my favorite amplifier: Vox Valvetronix Series
Completed builds: Super Hard On
Fuzz Factory
Aenima/Torn's Peaker (2 in 1 box with toggle switch)
Valvecaster Deluxe (Boost before VC)
Proco Rat (Mod to power jack, and input cap changed)
87% PillowStone
87% GlassJaw
Location: Ireland (Dublin/Waterford)
Been thanked: 1 time

Post by trad3mark »

so then i guess it could be some sort of mystery issue with the circuit itself.... especially if i'm not getting any LED action.

User avatar
Scruffie
Opamp Operator
Information
Posts: 1740
Joined: 13 Mar 2009, 17:59
Location: UK
Has thanked: 28 times
Been thanked: 169 times

Post by Scruffie »

If your using the parts you started with and have soldered them and unsoldered them hundreds of times theyre probably very unhappy by now. Is your LED orientated the right way ? is your switch wired up the right way round and have you tried it without the DC jack and just the Battery?

User avatar
trad3mark
Resistor Ronker
Information
Posts: 330
Joined: 08 Mar 2009, 15:55
my favorite amplifier: Vox Valvetronix Series
Completed builds: Super Hard On
Fuzz Factory
Aenima/Torn's Peaker (2 in 1 box with toggle switch)
Valvecaster Deluxe (Boost before VC)
Proco Rat (Mod to power jack, and input cap changed)
87% PillowStone
87% GlassJaw
Location: Ireland (Dublin/Waterford)
Been thanked: 1 time

Post by trad3mark »

i guess the parts could be burnt out... but on two circuits!? surely not..

I'm not using a DC hookup, just the battery. I've checked the LED. I'm heading out shortly, so i'll try it again tomorro. I'll double check the circuit like.

User avatar
Scruffie
Opamp Operator
Information
Posts: 1740
Joined: 13 Mar 2009, 17:59
Location: UK
Has thanked: 28 times
Been thanked: 169 times

Post by Scruffie »

Lol do you just wanna post them to me and see if I can fix them? Atleast then we can work out if it's something you did wrong or not and I can tell you how I fixed it.

User avatar
trad3mark
Resistor Ronker
Information
Posts: 330
Joined: 08 Mar 2009, 15:55
my favorite amplifier: Vox Valvetronix Series
Completed builds: Super Hard On
Fuzz Factory
Aenima/Torn's Peaker (2 in 1 box with toggle switch)
Valvecaster Deluxe (Boost before VC)
Proco Rat (Mod to power jack, and input cap changed)
87% PillowStone
87% GlassJaw
Location: Ireland (Dublin/Waterford)
Been thanked: 1 time

Post by trad3mark »

nah. i wanna get them working myself. I'll go back over the pots and the circuit and see if i can get anywhere. except i've a dirty big hangover on me, so i'll do it tomorrow.

edit:
but it does sound like a circuit issue if i'm getting no LED, but true bypass, right?

User avatar
Scruffie
Opamp Operator
Information
Posts: 1740
Joined: 13 Mar 2009, 17:59
Location: UK
Has thanked: 28 times
Been thanked: 169 times

Post by Scruffie »

Either a power issue or a wiring issue, which could be related to the circuit, but not neccesarily.

User avatar
trad3mark
Resistor Ronker
Information
Posts: 330
Joined: 08 Mar 2009, 15:55
my favorite amplifier: Vox Valvetronix Series
Completed builds: Super Hard On
Fuzz Factory
Aenima/Torn's Peaker (2 in 1 box with toggle switch)
Valvecaster Deluxe (Boost before VC)
Proco Rat (Mod to power jack, and input cap changed)
87% PillowStone
87% GlassJaw
Location: Ireland (Dublin/Waterford)
Been thanked: 1 time

Post by trad3mark »

after ruling out the battery etc, in order, i should check:
1. Switch
2. Pots
3. Circuit

right?

User avatar
Scruffie
Opamp Operator
Information
Posts: 1740
Joined: 13 Mar 2009, 17:59
Location: UK
Has thanked: 28 times
Been thanked: 169 times

Post by Scruffie »

Yea why not, just check everything, could you get some really good photos of it all? That would help me help you trouble shoot.

Post Reply