Pedalboard Photo Contest!

1 372 More

Rattlesnake Cable Company / Heather Brown Electronicals Combined Give Away

268 More

Guest Post – Revisiting the Boss GT-8 and Line 6 POD X3 Live by Dean Hailstone

578 More

Pedal Labels are BACK!

1,323 More

Effects Bay

  • About
  • Contact
  • Guest Posting
  • Pedal Deals
  • Pedal Line Friday
Home 2012 February Marshall Guv’nor Repair

Marshall Guv’nor Repair

Recently a friend of mine was having trouble with his older Marshall Guv’nor pedal (black enclosure). I wanted to document this repair, in case any others run into this problem. The early symptoms was shorting out. Kicking it would sometimes get it back to playing, but obviously that’s not an ideal solution. The first possible suspect was with the DC power jack. It was loose, but noticed that 2 out of the 3 jacks were missing their mounting nuts causing the top PCB (which connects the pots to the main PCB) to be loose.

I took the pedal apart and inspected the solder connection of the power jack and it looked solid. Thinking this would be as simple as finding compatible nuts and secure that board, I tightened the connections and reassembled the pedal enclosure. First test, sounded great until we kicked the pedal while it was engaged and sure enough, the pedal cut out. So at this point it’s most likely not a power issue. I started tapping wires and eventually came back to the input and output jacks. Wiggling the input and output plugs I could make the pedal short out. The solder connections for the jacks were fine and I saw no motion on the jack itself but there was a hair of wiggle room within the jack itself.

Doing a little Googling, I did see mention of those jacks going bad and this pedal has definitely seen some action throughout the years. I have plenty of Switchcraft jacks laying around, but noticed these are the 9 pin low profile jacks. I’m left with a couple of options at this point. If I go the Switchcraft route I would need to do a re-house since those jacks do not fit in that area at all, plus I would need to really understand what the signal path is all about. I opted to find replacement jacks.

Marshall Guv'nor Jack ViewI ended up buying Fender Jack Phone Stereo 6.5mm Part #0059922000. I saw that they were built a little tougher and the dimensions matched the originals. These jacks are a little pricey though – coming in at $7.95ea. I bought mine at Darren Riley’s (click here for the part) and they arrived quickly.

Fender Jack Phone Stereo 6.5mm 0059922000For this repair I thought I would replace all the jacks including the ‘loop’ jack. The first process is to desolder the current connections. This can be tricky depending on your skill and tools. I would highly recommend a desolder bulb or suction ‘pen’. I’ve always had terrible luck with braids and wicks, but whatever works for you. If you have no desoldering tools.. STOP and get something first.

The important tip for this is to take your time, don’t force things by prying too hard or pulling the component. By taking your time you’ll ensure a clean removal while not damaging the board.

Here is a shot of the board with all the connections I will need to desolder (total of 23 connections).

Marshall Guv'nor Solder PointsAs you can see that 2 of the jacks use all 9 lugs (Input and Loop) but the output only uses 5 lugs. I clipped the extra lugs from that jack. Make sure you verify before clipping anything (“measure twice – cut once” rule applies here).

Here is a shot of the original output jack with my new jack with clipped lugs:

Marshall Guv'nor Clipped LugsAfter re-soldering all of your connections (be careful to not create shorts with your soldering, but keeping the solder enclosed within the bounds of their solder pads) it’s time to secure the jacks. These jacks have plastic threads, so be sure to NOT over-tighten. I like it tight, but over tightening will lead you to do this all over again.

Here is the shot of the Marshall Guv’nor with the old broken jacks removed.

Marshall Guv'nor - Broken Jacks RemovedI was pleased to get the Marshall Guv’nor back together, and it works perfectly. It passed the “kick” test. I’m guessing the jacks were actually broken inside or the contacts were not seated well within the jack itself. Definitely the new jacks felt tighter in general.

This was an easy repair, but if you’re not fluent in soldering, specifically with desoldering, this could be a little tougher for the novice. I can’t state enough – take your time and it should work out great.

 

Feb 25, 2012admin

Related posts:

Default ThumbnailCrazy deal on the the Marshall Guv’nor Distortion Pedal at Amazon Joe Strummer Telecaster pickup swap out Taming High Gain Distortion NoiseTaming High Gain Distortion Noise cubisteffectsMod.It.Yourself (M.I.Y) Part 2 – Diode Clipping
Pedal Line Friday - 2/24 - Scott CaseySource Audio Programmable EQ - Bass Guitar Demo
Comments: 6
  1. underwood
    11 years ago

    hello,

    I’ve repaired a Guvenor for a friend to. These jacks are hard to get in germany. I think I found them at rs.

    ReplyCancel
  2. Nat Cundy
    11 years ago

    I had one of these back in the day. It was a workhorse and got replaced
    with a boss turbo distortion. Could that be my old Guvnor? I liked the slanted
    face it just felt right… Nice in depth repair and good to save the
    Old guy! it had a pretty good range of tone if I remember.

    ReplyCancel
  3. Andrew Gray
    11 years ago

    Sweet. When the crazy web of rubberbands stopped working I took mine to my local guitar store. My LGS told me that I would need to figure out what all the tabs were for so they could order the jacks, I ended up replacing the output with a normal “telephone style” jack but had no solution for the input. I can’t tell you how much that link to the part helps me out. Thanks a ton. I love this thing, it’s so versatile.

    ReplyCancel
  4. Steve Housden
    4 years ago

    They are the ‘low profile” type. Amprepairparts.com has them.

    ReplyCancel
  5. Dan
    3 years ago

    I have one of those pedals, the output jack is bad. The output jack is mono and does not have as many pins. Did you just cut the extra pins off for the output jack? I did notice the input and loop jacks are stereo.

    Thanks

    ReplyCancel
  6. admin
    3 years ago

    That would definitely work. Just make sure you cut the correct pins. Multimeter would be handy here for continuity check to find tip and sleeve connection in relation to the lugs.

    ReplyCancel

Leave a Reply

This site uses Akismet to reduce spam. Learn how your comment data is processed.

admin
11 years ago 6 Comments Mods, Repairs & Buildingdistortion, Fender, guv'nor, how-to, jacks, marshall, repair4,754
Sponsors
Advertise on EffectsBay.com!
Amazon Associates Disclosure

EffectsBay.com is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to amazon.com. Please view Affiliations below for additional information about links.

Pages
  • About
  • Contact
  • Guest Posting
  • Pedal Deals
  • Pedal Line Friday
  • Privacy Policy
Recent Posts
  • Pedalboard Photo Contest!
  • Rattlesnake Cable Company / Heather Brown Electronicals Combined Give Away
  • Guest Post – Revisiting the Boss GT-8 and Line 6 POD X3 Live by Dean Hailstone
  • Pedal Labels are BACK!
  • Pedal Line Friday – 2/12 – Joe Perkins
Archives
DIY / MIY
  • Beavis Audio
  • Build Your Own Clone
  • Cubist Effects
  • DIY Stompboxes
  • Effects Connection
  • General Guitar Gadgets
  • Guitar PCB
  • Mad Bean Pedals
  • Mod Kits DIY
  • Officially Licensed Circuits
  • Pedal Enclosures
  • Pedal Parts Plus
  • Small Bear Electronics
  • Stomp That Box
  • Tone Clone Pedals
Guest Posters
  • Andrew Elmore
  • Bobby Morelli – Drew Street Mary
  • Brian Porter – Porter Pickups
  • Christian Moraga
  • Danny Dyson
  • George DesRoches – The Random Band
  • Giovanni Lanese – Glitterball Band
  • I Hate Barre Chords
  • Kevin Ian Common – The Common Men
  • Lee Chavez
  • Mark Grundhoefer
  • Matthew Cheezem
  • Nick Georgiou
  • Norman Harris
  • Worship Rocker (Donny)
Sites
  • 22 frets
  • Dy-sphoric
  • Guitar Jar
  • Guitar4Free
  • I Heart Guitar
  • Louder Than Quiet
  • LP Stop (Les Pauls)
  • Never Too Late Guitar
  • Pedal Nerd
  • Stomp That Box
  • VintageandRare.com
  • What's That Dude Play?
Affiliations

Effectsbay.com is affiliated with the following business:
Musician’s Friend
Guitar Center
Amazon
Google
Rattlesnake Cable Co.
Pedal Labels

This means that some links will go to their website and EffectsBay.com can potentially receive a commission for items purchased there. Or in the case of Rattlesnake Cable Company and Pedal Labels, they are owned by the owner of Effects Bay.

We will also disclose if reviewed products were kept when sent by the manufacturer to us for review.

Search
Contact

Hank c/o EffectsBay
P.O. Box 2364
Missoula, MT
59806

Privacy Policy

Advertisement
Interested in advertising on the site or submitting products for review and/or giveaways? Send me a message!
Newsletter

2017 © Effects Bay