Marshall Amplification plc, Denbigh Road, Bletchley, Milton Keynes, MK1 1DQ England. Tel (01908) 375411 Fax (01908) 376118 Whilst the information contained herein is correct at the time of publication: Due to our constant improvement and development, Marshall Amplification plc reserve the right to alter specifications without prior notice.
JFX-1 Handbook Contents : From Jim Marshall Warning List and Introduction Section 1 - Connection Diagrams A. With a Home / Recording Mixer B. Stereo Rack System C. With a Stereo or Mono Combo / Amp Section 2 - Quick Reference Guide 2.1 - Selecting a Stored Pre-Set 2.2 - Editing Pre-Set Programs Section 8 - Reverb Mode 8.1 - Reverb Mode 8.2 - Reverb Characters 8.3 - Reverb Parameters 8.4 - Creating a Reverb Program Section 9 - Multi Effect Mode 9.1 - Multi-Effect Individual Features 9.
ENGLISH ENGLISH WARNING! Set-up B: Stereo Rack System. PLEASE READ THE FOLLOWING LIST CAREFULLY MIDI Foot Controller A. DO NOT attempt to remove the JFX-1’s lid, There are no user serviceable parts inside. B. ALWAYS have this equipment serviced or repaired by competent, qualified personnel. C. NEVER use the JFX-1 in damp or wet conditions. D. ALWAYS use only the Marshall power supply that is provided with the JFX-1. JFX-1 MIDI In E. PLEASE READ this instruction manual carefully before switching on.
STORE PROGRAM at : 004 If you wish to store the altered parameters to the same location, press ‘STORE’ a second time. To recall a stored program in the JFX-1, press the UP or DOWN keys until you reach the desired program location. 8 PROGRAM 004 : live room PROGRAM 004 : Live room ➤ Edit System Power Peak SIGNAL PROCESSOR To g g l e Quit The program is automatically selected once you stop scrolling through.
Data 1 Data 2 9 ➤ Input Level 7 Edit System Quit Store 5 Data 3 ENGLISH 4 2 ➤ ENGLISH 1 Power Peak To g g l e SIGNAL PROCESSOR Edit JFX-1 Made in England Power 9V AC 1.2A In MIDI THRU Out 6 Right Remote 8 FRENCH FRENCH 3 10 Left Input Model No. JFX-1 WARNING! No user servicable parts inside; refer servicing to qualified personel only. Manufactured in Great Britain by: Marshall Amplification plc, Bletchley, Milton Keynes, England. Section 3 - Front Panel 1.
Section 4 - The Mixer Section L Effects Processing D/A Converter Data 1 R Output Mixer Left Output Right Output 4.1 - Setting the Output Levels To select the Output Levels press the ‘Toggle’ switch. The effects signal is converted from Analogue to Digital information, is processed, then split into left and right signals. Data 1 To g g l e OUTPUT LEVELS Dir : 00 Eff : 00 The Display shows: MIX : CHORUS : DELAY REVERB : NAME : MODE Press ‘Toggle’ again to return to the program number and name.
Use Data Control ❸ to adjust the Duck parameter. resonance filter : 0 duck : 00 Use Data Control ❶ to adjust the Resonance parameter (only available in Flange mode). Data 3 Data 2 Press ‘Edit’ to display the Voice parameters. amount of effected signal fed back to the input from the right hand output. Higher settings give a greater number of repeats and lower settings fewer. Adjusted by the Data Control ❷.
Outputs DELAY LINE 1660 m.sec ➤ In Mono Mode If you scroll through to an unnamed program (for example 52) using the Up or Down keys. L Input The Display shows: DELAY : 0000 ms The Display shows: R PROGRAM 052 : unnamed Left Output Right Output LEFT : 0000 ms Edit Sy Use Data Control ❶ to select the delay description (Short, Medium or Long). The Display shows: R Data 1 Data 2 Use Data Control ❷ to select the exact delay time (0000 - 1660 in Mono, 0000 - 0830 in Stereo).
The Display shows: ➤ Use the ‘Up’ key to move the cursor until it rests under MODE. REVERB : plate : The Display shows: L REVERBERATOR Pre-Delays R MIX : CHORUS : DELAY REVERB : NAME : MODE Outputs R Data 1 Edit Press ‘Edit’ again Dark : By damping certain top end and low end frequencies this selection gives the effect of a heavily curtained and carpeted area where sound reflections would be heavily deadened.
Clean : A minimum of high frequency damping Warm : Increased high frequency damping slightly Dark : Further high frequency damping darkens and softens the colour of the delay. Data 2 Data Control ❷ selects the level of Delay (00 - 99). Data 3 Data 2 so that as one side flanges up the other side flanges down. Mode 3 - Stereo Chorus : Split so that as Mode 4 - 4 Voice Chorus : 4 Slightly Data 2 The Delay Section.
The furthest extreme to the left provides a space then as you turn the control it scrolls through the alphabet, first in capital letters, then in lower case letters and finally in numbers 0 - 9. ➤ NAME : 054 : unnamed STORE PROGRAM at 054 The MIDI section of the JFX-1 contains certain parameters which are global (i.e. they are not individually stored as part of a program and therefore affect all programs). Pressing the ‘System’ key again will display the MIDI Channel function.
For live performance it can be beneficial to be able to adjust certain program parameters remotely via a pitch wheel or expression pedal. The following list displays which parameters are available for continuous control in each mode, gives you their value plus the abbreviated form and order in which they appear on the LCD display. Each of the 127 programs in the JFX-1 can have up to four parameters assigned for continuous control.
Section 15 - Factory Pre-Sets Program No. If at any time you wish to restore the programmed information within the JFX-1 to the same condition in which it left the factory it is possible to re-initialise it.
