Troubleshooting Problems

Low Volume & Unpleasant Distortion in one output channel.

Started by Auntie Ada

Replies: 9
Views: 7,294

July 29, 2015, 02:26:50 PM
by MarshallJMP

Troubleshooting hum and weird microphonics

Started by DesmoBob

Replies: 5
Views: 5,472

July 01, 2015, 05:51:55 AM
by rnolan

Very Strange Behaviour

Started by MikeB

Replies: 4
Views: 5,655

June 12, 2015, 03:21:17 PM
by MikeB

Wrong channel comes up on my MP-1

Started by Darth Infernus

Replies: 9
Views: 6,747

May 22, 2015, 01:36:41 AM
by rnolan

Microphonic type squealing

Started by Darth Infernus

Pages1 2

Replies: 18
Views: 10,311

May 18, 2015, 10:38:38 PM
by Darth Infernus

No lights No sound and a hot ic

Started by t-rack

Pages1 2

Replies: 20
Views: 11,013

April 28, 2015, 02:38:42 AM
by MarshallJMP

Battery Issue in MP-1

Started by kfowler8

Pages1 2

Replies: 18
Views: 15,223

March 27, 2015, 01:07:53 PM
by MarshallJMP

Programming patches - inconsistent behaviour

Started by MikeB

Replies: 4
Views: 4,732

March 18, 2015, 09:39:15 AM
by MarshallJMP

Rear Input Jack

Started by Jaster

Replies: 1
Views: 3,770

March 16, 2015, 04:05:22 AM
by rnolan

Front panel don´t work

Started by kserri

Replies: 5
Views: 5,094

January 30, 2015, 04:21:33 AM
by rnolan

MP-1 Classic dead

Started by tangohf

Replies: 4
Views: 4,249

December 07, 2014, 04:50:19 PM
by MarshallJMP

MP-1 diagnosis

Started by willem

Replies: 4
Views: 4,752

December 02, 2014, 10:55:53 AM
by MarshallJMP

Light went out on MP-2 display

Started by Ekornbakke

Replies: 2
Views: 3,750

November 19, 2014, 05:22:06 AM
by rnolan

Clicks when switching presets

Started by sadky

Replies: 6
Views: 5,141

October 03, 2014, 05:47:22 AM
by Systematic Chaos

MP-1 high pitch squeal

Started by kfowler8

Replies: 13
Views: 8,540

September 09, 2014, 01:13:59 PM
by kfowler8

Hum and Crack on DIST mode

Started by Jonar

Replies: 3
Views: 4,026

August 31, 2014, 01:28:19 PM
by MarshallJMP

MP2 Volume drop

Started by Shredzilla

Pages1 2

Replies: 25
Views: 13,252

July 27, 2014, 12:23:00 AM
by Shredzilla

MP2 starts out quiet but gets gradually more noisey

Started by h.e.l.shane

Replies: 0
Views: 3,196

July 21, 2014, 10:39:10 PM
by h.e.l.shane

Bad buzz or rumble on mp-2 high gain modes

Started by h.e.l.shane

Replies: 2
Views: 3,977

July 14, 2014, 09:43:55 AM
by W.Laturno

Sound issues after noise mod

Started by Deregorn

Pages1 2

Replies: 29
Views: 14,523

June 19, 2014, 02:41:35 PM
by MarshallJMP