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Author Topic: No Power, No Display, No Output  (Read 1216 times)

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rnolan

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Re: No Power, No Display, No Output
« Reply #30 on: Time Format »

I just checked the (now spare) Australian transformer that Mike replaced with MDRT.  It looks like the one on the left with black tape.  I need to check my 240v MP1 that only worked for a little bit, as MJMP you said (back when I bought it) the problem may be power related.  The US MP1 I have works fine but (obviously) needs a step down transformer (which are heavy and a pain...)
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Studio Rig: MP2/MB1 > Eurorack UB2442FX-Pro > TC M-One XL > Behringer Truths (with Truth Sub) / QUAD ESL 63s
Live Rig: MP2/MB1 > Alesis Quadverb > Alesis Midiverb 4 > Yamaha AM802 > B200s/Carvin TS100/DCM200L > ADA Split Stacks/Mesa P112s

Chip Roberts

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Re: No Power, No Display, No Output
« Reply #31 on: Time Format »

Zombie thread:

After getting a new MP1 (which I love of course), I gave my old one to our other guitar player, as he's an electrical engineer and is interested in old tech like this.  He replaced one of the diodes and BOOM-it works.  Still needs some more work done, like replacing input jacks and volume pots, but now I have another MP1 for backup  :headbanger:
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Rig of Doom:
MP1 v2.01/Alesis Midiverb II/Boss TU2, Boss BF2, Boss CE5, MXR EVH Phase 90, Behringer HB01 Wah/Digitech Control 7/Marshall Valvestate 8004/Custom 2X12 w/ WGS Retro 30/HM75

Guitars:
Gibson Custom Shop Flying V - Dimarzio X2Ns
Gibson Les Paul Standard - Dimarzio Crunch Lab/Tone Zone
Gibson Custom Shop Explorer - Dimarzio MegaDrive/Air Norton
CC Clarke Superstrat - Dimarzio Evolution
No-Name Superstrat - Dimarzio Steve's Special/HS4/HS4
Ovation Matrix
Ibanez AC130
Washburn Lyon LB21

Other Rack Gear:
Peavey TG Raxx
MosValve 1160
Yamaha SPX90II

Other Pedals:
Morley Bad Horsie 2
Boss NS2
Digitech Whammy

Wishlist:
Carvin X100B
Laney AOR
Marshall JCM800
ADA Microtube 100
Roland GP8
Rocktron Intellifex Blackface
Lee Jackson SP1000

rnolan

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Re: No Power, No Display, No Output
« Reply #32 on: Time Format »

Fantastic  :thumb-up: :whoohoo!:
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Studio Rig: MP2/MB1 > Eurorack UB2442FX-Pro > TC M-One XL > Behringer Truths (with Truth Sub) / QUAD ESL 63s
Live Rig: MP2/MB1 > Alesis Quadverb > Alesis Midiverb 4 > Yamaha AM802 > B200s/Carvin TS100/DCM200L > ADA Split Stacks/Mesa P112s

MarshallJMP

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Re: No Power, No Display, No Output
« Reply #33 on: Time Format »

Chip, could you ask him which diode was busted? it seems some of them start to fail
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Chip Roberts

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Re: No Power, No Display, No Output
« Reply #34 on: Time Format »

Not sure if this is helpful or not.  This was either the replacement or the original one before he pulled it out, but that's where it's located I guess  :dunno:
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Rig of Doom:
MP1 v2.01/Alesis Midiverb II/Boss TU2, Boss BF2, Boss CE5, MXR EVH Phase 90, Behringer HB01 Wah/Digitech Control 7/Marshall Valvestate 8004/Custom 2X12 w/ WGS Retro 30/HM75

Guitars:
Gibson Custom Shop Flying V - Dimarzio X2Ns
Gibson Les Paul Standard - Dimarzio Crunch Lab/Tone Zone
Gibson Custom Shop Explorer - Dimarzio MegaDrive/Air Norton
CC Clarke Superstrat - Dimarzio Evolution
No-Name Superstrat - Dimarzio Steve's Special/HS4/HS4
Ovation Matrix
Ibanez AC130
Washburn Lyon LB21

Other Rack Gear:
Peavey TG Raxx
MosValve 1160
Yamaha SPX90II

Other Pedals:
Morley Bad Horsie 2
Boss NS2
Digitech Whammy

Wishlist:
Carvin X100B
Laney AOR
Marshall JCM800
ADA Microtube 100
Roland GP8
Rocktron Intellifex Blackface
Lee Jackson SP1000

Chip Roberts

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Re: No Power, No Display, No Output
« Reply #35 on: Time Format »

Here's another one of him testing it before the replacement with what looks like some sort of sonar device?
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Rig of Doom:
MP1 v2.01/Alesis Midiverb II/Boss TU2, Boss BF2, Boss CE5, MXR EVH Phase 90, Behringer HB01 Wah/Digitech Control 7/Marshall Valvestate 8004/Custom 2X12 w/ WGS Retro 30/HM75

Guitars:
Gibson Custom Shop Flying V - Dimarzio X2Ns
Gibson Les Paul Standard - Dimarzio Crunch Lab/Tone Zone
Gibson Custom Shop Explorer - Dimarzio MegaDrive/Air Norton
CC Clarke Superstrat - Dimarzio Evolution
No-Name Superstrat - Dimarzio Steve's Special/HS4/HS4
Ovation Matrix
Ibanez AC130
Washburn Lyon LB21

Other Rack Gear:
Peavey TG Raxx
MosValve 1160
Yamaha SPX90II

Other Pedals:
Morley Bad Horsie 2
Boss NS2
Digitech Whammy

Wishlist:
Carvin X100B
Laney AOR
Marshall JCM800
ADA Microtube 100
Roland GP8
Rocktron Intellifex Blackface
Lee Jackson SP1000

MarshallJMP

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Re: No Power, No Display, No Output
« Reply #36 on: Time Format »

Did he replace the crystal? (the metal can like thing with the long legs)

Hmmm funny, never heard someone saying a sonar device to an oscilloscope  ;D
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