Trouble Shooting; Battery Replacement; Technical Specification - Marshall Amplification Echohead Owner's Manual

Trouble Shooting

 
WHAT IF
NO
OUTPUT

NOISE IN
BYPASS
 
INDICATOR
LED NOT
INPUT
ON
LEAD
SOUND TOO
TREBLY OR
FIZZY

SOUND TOO
MUSHY OR
BASSY

UNUSUAL
FEEDBACK

UNUSUAL
HUM
BASS
FEEDBACK
  

 

  
REDUCE REDUCE
TREBLE TREBLE
  
MOVE AWAY
FROM AMP

PICKUPS
MAY BE
VIBRATING
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Battery Replacement

1. To replace the battery, open the easily accessed coin screw
battery cover plate by loosening screw as shown, then
disconnect the battery connector lead.
2. Use PP3 or equivalent battery
(for improved battery life use
alkaline type).
3. Always ensure that the battery
is removed when the pedal is
not in use for long periods.
4. Dispose of old battery in a
safe place.

Technical Specification

Power: 9V DC Centre Negative Regulated
Minimum Current Draw: 80mA
Controls: Mode, Delay Time, Feedback, Level
Switches: On/Off Switch
Indicators: On/Off LED
Jacks: 2 Input, 2 Output 'Jack sockets'
Input Impedance: 1M Ω
Output Load Impedance: < 1k Ω
Dimensions: 120mm x 65mm x 55mm
Weight: 510 grammes
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