Troubleshooting Problems

Very OT: Refrigerator repair

Started by vansinn

Replies: 12
Views: 6,852

July 12, 2016, 12:50:14 PM
by vansinn

U.S. MP-1 Repair

Started by kfowler8

Replies: 5
Views: 5,382

September 06, 2016, 06:28:36 PM
by kfowler8

Ah the joys of troubleshooting

Started by Dante

Replies: 14
Views: 8,479

December 14, 2016, 01:27:26 AM
by rnolan

110v -> 220v

Started by Sirion

Replies: 2
Views: 3,255

January 05, 2017, 09:07:01 AM
by MarshallJMP

MB-1: Brand New Tubes, no sound on "Edge" or "Full" settings...

Started by BoWeevil2017

Replies: 1
Views: 3,330

February 21, 2017, 12:57:24 PM
by MarshallJMP

Help with mp1 - low distortion and "sputtering"

Started by Cstecker

Replies: 13
Views: 8,673

February 27, 2017, 03:58:07 PM
by Harley Hexxe

ADA MP-1 Extreme Restoration

Started by SteveFuzz

Replies: 14
Views: 8,884

March 09, 2017, 05:24:45 AM
by Iperfungus

MP1 - > Midiverb II -> UX2?

Started by Chip Roberts

Replies: 9
Views: 5,360

April 23, 2017, 04:14:44 PM
by Harley Hexxe

Viper probs, info moved from Schematics section

Started by guitardude57

Pages1 2 3

Replies: 32
Views: 15,030

June 02, 2017, 03:28:21 AM
by MarshallJMP

MP-1 got Noisy...

Started by rabidgerry

Pages1 2 3

Replies: 34
Views: 17,214

July 02, 2017, 04:53:43 PM
by MarshallJMP

MP-1- err 1 on startup

Started by tabascojunkie

Replies: 8
Views: 7,772

July 27, 2017, 03:50:00 AM
by MarshallJMP

MP1 and Cold Exposure

Started by Chip Roberts

Replies: 2
Views: 4,257

December 10, 2017, 08:17:01 PM
by herbyguitar

No Power, No Display, No Output

Started by Chip Roberts

Pages1 2 3

Replies: 38
Views: 16,868

December 23, 2017, 08:35:04 AM
by MarshallJMP

Got noise???

Started by Dante

Replies: 7
Views: 6,001

January 15, 2018, 12:27:21 AM
by rabidgerry

Help with MC-1

Started by Wimbish

Replies: 12
Views: 6,658

February 01, 2018, 04:44:14 AM
by rnolan

No sound on select preset channels and weird output level knob behavior

Started by Andrew Smith

Replies: 2
Views: 3,752

March 07, 2018, 04:22:32 PM
by Andrew Smith

Viper trouble

Started by Dante

Pages1 2

Replies: 18
Views: 13,719

May 05, 2018, 01:24:28 AM
by MarshallJMP

MP1 v 1.38 no sound can someone help me out?

Started by Wormwoody

Pages1 2

Replies: 16
Views: 8,745

May 05, 2018, 10:06:19 AM
by Wormwoody

MP-1 Flipping Presets

Started by Griphook

Replies: 10
Views: 5,368

July 26, 2018, 11:18:15 PM
by Griphook

MB-1 no output

Started by peoriashows

Replies: 7
Views: 4,680

July 28, 2018, 11:51:45 PM
by rnolan