Troubleshooting Problems

Srange Chorus problem

Started by Pete66

Replies: 2
Views: 1,978

September 26, 2020, 12:43:27 AM
by Pete66

Latency with SPX90

Started by Chip Roberts

Replies: 13
Views: 5,559

July 01, 2020, 03:07:40 AM
by rnolan

no sound on outputs A and B, effects loop works

Started by ang3lus

Replies: 4
Views: 2,390

April 15, 2020, 01:27:32 AM
by rnolan

No lights, no display, no sound

Started by emunstar

Pages1 2

Replies: 25
Views: 8,702

March 04, 2020, 11:42:35 AM
by MarshallJMP

B200s hum

Started by duecemfhatchet

Replies: 3
Views: 2,852

August 20, 2019, 09:24:04 AM
by MarshallJMP

MP1 wont work with either 2.0 or 2.01 EPROM

Started by rnolan

Replies: 3
Views: 2,777

June 15, 2019, 08:48:09 AM
by MarshallJMP

MP1 Classic Clean Issue

Started by AndiK

Replies: 7
Views: 4,592

May 01, 2019, 04:06:36 AM
by MarshallJMP

4ohm Resistor Across C131 & D38 ?

Started by red2203stack

Pages1 2

Replies: 16
Views: 6,955

January 20, 2019, 04:36:13 PM
by red2203stack

Rack grounding?

Started by Georgeclooney0

Pages1 2

Replies: 29
Views: 8,562

December 04, 2018, 11:07:57 AM
by rabidgerry

front panel

Started by kserri

Replies: 3
Views: 4,559

December 03, 2018, 01:11:27 AM
by rnolan

ADA MP-1 Ground hum with good gain

Started by bunkyloo

Replies: 3
Views: 3,007

November 10, 2018, 02:50:27 AM
by MarshallJMP

New Member - just got an old MP-1 - no sound - it does turn on

Started by Overtone85

Replies: 1
Views: 2,840

October 30, 2018, 01:03:45 PM
by MarshallJMP

Mp-1 v2 mod 3 no output in tube anything

Started by bunkyloo

Replies: 10
Views: 4,120

October 05, 2018, 02:16:17 AM
by rnolan

MB-1 no output

Started by peoriashows

Replies: 7
Views: 4,550

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

MP-1 Flipping Presets

Started by Griphook

Replies: 10
Views: 5,122

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

MP1 v 1.38 no sound can someone help me out?

Started by Wormwoody

Pages1 2

Replies: 16
Views: 8,418

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

Viper trouble

Started by Dante

Pages1 2

Replies: 18
Views: 13,227

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

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

Started by Andrew Smith

Replies: 2
Views: 3,577

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

Help with MC-1

Started by Wimbish

Replies: 12
Views: 6,436

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

Got noise???

Started by Dante

Replies: 7
Views: 5,817

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