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Author Topic: Replacing output volume pot and rear output jacks  (Read 1352 times)

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Chip Roberts

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Exactly as the topic heading states, I'm replacing the output pot on the front end of the MP1 and the rear output jacks.  Any recommendations on brands or even specific models you guys have used in the past?
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Rack of Death:
MP1 v1.38/Alesis Midiverb II/Marshall Valvestate 8004

Rack of Back:
MP1 v2.01/ART SGE Mach II/MosValve 1160

Pedalboard:
Boss TU2, Mooer Pitchbox, Boss BF2, Boss CE5, MXR EVH Phase 90, Behringer HB01 Wah/ART X15 Ultrafoot/

Cabinet:
Custom 2X12 with WGS Retro 30/HM75

Kim

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Myself, I don't even bother with using stock-style plastic frame jacks for the Outputs on the back.  I just use the standard open-frame jacks mounted to the rear panel with insulating washers.  Then they are wired to the circuit board.  A little tighter fit but it does work.  iirc there's a Mod Doc about it but if you can't find it I can get that for you later this evening.
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RIG OF FIRE:  ADA MP-2, Rocktron Xpression, Peavey Classic 60/60, Gator pedalboard, Rolls MidiBuddy, Dunlop 95Q wah.
Mellotron/organ section:  EHX Mel9, EHX C9, Saturnworks A/B switch, Vox V860 volume, Crate Powerblock.
Two 4x12 cabs:  one custom wired for both 2x12 guitar and 2x12 Mel9 if needed. UPDATED DIAGRAMS
HOME/STUDIO/COMBOS/STUFF:  Peavey JSX halfstack, Crate G60XL, Saturnworks Saturn Fuzz,  EHX Soul Food, ProCo Rat, Ibanez Smashbox, Saturnworks buffered splitter, Morley Tremonti wah, Peavey PV6, Korg DTR-1000, ADA MPC.
GUITARS:  Jackson KE3-DiMarzio Breed/PAF Pro, Jackson KE3-DiMarzio Breed/PAF Pro, Silvertone P-bass, '70s Gretsch Dorado acoustic.
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Chip Roberts

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That would be super helpful.  I'm not going to do anything fancy, the unit just needs some TLC.  It would not be a very prudent idea to have my backup in worse condition than my main  :facepalm:
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Rack of Death:
MP1 v1.38/Alesis Midiverb II/Marshall Valvestate 8004

Rack of Back:
MP1 v2.01/ART SGE Mach II/MosValve 1160

Pedalboard:
Boss TU2, Mooer Pitchbox, Boss BF2, Boss CE5, MXR EVH Phase 90, Behringer HB01 Wah/ART X15 Ultrafoot/

Cabinet:
Custom 2X12 with WGS Retro 30/HM75

rabidgerry

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I did the rear input mod on my first MP1 (it sounded like  :poop: that thing so it's as well I sold it  :thumb-up:).

I replaced the front input with a switchcraft knock off guitar input, wired it to the board then ran wires to the back input.  The front one was switching so it would shut off the rear anytime a jack was plugged into the front.

Here is a guide which might help, it looks different from the guide I followed to be honest,  looks more in detail

http://adadepot.com/mods/ADA_MP-1_v1.xx_Rear_Input_Jack_Conversion_Mod.pdf

MJMP can tell you the exact stuff you need.

Funny my stock MP1 input is still alive and kicking lol crazy.

This mod influenced my to do my own mod on my Boss GT5 and replace a shit microphonic inut with a sturdy cliff socket.  It didn't fit to the pcb so you flip it round and have the tabs in the air and solder wires to them accordingly to the pcb itself, just like the input mod.
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"whadda ya want? we want Heavy Metal"

Guitars:1986 Westone Dimension IV, 1989 Korean Squier Fat Strat Silver Series, 1998 Korean Squier Fat Strat, MIM Fender Fat Strat - FR, Squier Stagemaster Deluxe - Thru Neck x 2, Squier Stagemaster 22 Fret - 1st Gen, 1999 Squier Showmaster - Anniversary Edition, Squier Showmaster, Tokai FV40 Flying V

Effects:  Ada Mp1, Peavey Rockmaster, Boss GX700 Boss SX700 * Amps:   Rocktron Velocity 300 - Harley Benton GPA400
Cabs: 4 x Bugera 2 x 12"

Chip Roberts

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Any suggestions/tips for replacing the front output pot?
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Rack of Death:
MP1 v1.38/Alesis Midiverb II/Marshall Valvestate 8004

Rack of Back:
MP1 v2.01/ART SGE Mach II/MosValve 1160

Pedalboard:
Boss TU2, Mooer Pitchbox, Boss BF2, Boss CE5, MXR EVH Phase 90, Behringer HB01 Wah/ART X15 Ultrafoot/

Cabinet:
Custom 2X12 with WGS Retro 30/HM75

rabidgerry

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Any suggestions/tips for replacing the front output pot?

yeah, any pot will do that is 50k.  MJMP give me this one.  see attached
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"whadda ya want? we want Heavy Metal"

Guitars:1986 Westone Dimension IV, 1989 Korean Squier Fat Strat Silver Series, 1998 Korean Squier Fat Strat, MIM Fender Fat Strat - FR, Squier Stagemaster Deluxe - Thru Neck x 2, Squier Stagemaster 22 Fret - 1st Gen, 1999 Squier Showmaster - Anniversary Edition, Squier Showmaster, Tokai FV40 Flying V

Effects:  Ada Mp1, Peavey Rockmaster, Boss GX700 Boss SX700 * Amps:   Rocktron Velocity 300 - Harley Benton GPA400
Cabs: 4 x Bugera 2 x 12"

Chip Roberts

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Thanks guys!  Gonna crack it open this weekend and start fixing away.  Well, I won't do it, a man will, but I'll supervise!
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Rack of Death:
MP1 v1.38/Alesis Midiverb II/Marshall Valvestate 8004

Rack of Back:
MP1 v2.01/ART SGE Mach II/MosValve 1160

Pedalboard:
Boss TU2, Mooer Pitchbox, Boss BF2, Boss CE5, MXR EVH Phase 90, Behringer HB01 Wah/ART X15 Ultrafoot/

Cabinet:
Custom 2X12 with WGS Retro 30/HM75

Kim

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Here's some info I have.  It's old info and YMMV about the part numbers and such actually being current or not. 

Mouser Electronics: http://www.mouser.com 

All Electronics: http://www.allelectronics.com 


MP-1 Rear Jacks (Stock-style plastic casing Output A, Output B, Effects Send, Headphone):   Mouser Part #16PJ509 

50k Dual Linear PCB Mount, 6mm Shaft Pot:   All Electronics Part #DLP-50K  (No Longer Valid)

Attached is the Output Jack Mod rtf file.
« Last Edit: Time Format by Kim »
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RIG OF FIRE:  ADA MP-2, Rocktron Xpression, Peavey Classic 60/60, Gator pedalboard, Rolls MidiBuddy, Dunlop 95Q wah.
Mellotron/organ section:  EHX Mel9, EHX C9, Saturnworks A/B switch, Vox V860 volume, Crate Powerblock.
Two 4x12 cabs:  one custom wired for both 2x12 guitar and 2x12 Mel9 if needed. UPDATED DIAGRAMS
HOME/STUDIO/COMBOS/STUFF:  Peavey JSX halfstack, Crate G60XL, Saturnworks Saturn Fuzz,  EHX Soul Food, ProCo Rat, Ibanez Smashbox, Saturnworks buffered splitter, Morley Tremonti wah, Peavey PV6, Korg DTR-1000, ADA MPC.
GUITARS:  Jackson KE3-DiMarzio Breed/PAF Pro, Jackson KE3-DiMarzio Breed/PAF Pro, Silvertone P-bass, '70s Gretsch Dorado acoustic.
WISHLIST

Kim

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Pics from the Output Jack Mod document:
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RIG OF FIRE:  ADA MP-2, Rocktron Xpression, Peavey Classic 60/60, Gator pedalboard, Rolls MidiBuddy, Dunlop 95Q wah.
Mellotron/organ section:  EHX Mel9, EHX C9, Saturnworks A/B switch, Vox V860 volume, Crate Powerblock.
Two 4x12 cabs:  one custom wired for both 2x12 guitar and 2x12 Mel9 if needed. UPDATED DIAGRAMS
HOME/STUDIO/COMBOS/STUFF:  Peavey JSX halfstack, Crate G60XL, Saturnworks Saturn Fuzz,  EHX Soul Food, ProCo Rat, Ibanez Smashbox, Saturnworks buffered splitter, Morley Tremonti wah, Peavey PV6, Korg DTR-1000, ADA MPC.
GUITARS:  Jackson KE3-DiMarzio Breed/PAF Pro, Jackson KE3-DiMarzio Breed/PAF Pro, Silvertone P-bass, '70s Gretsch Dorado acoustic.
WISHLIST
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