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IMPORTANT SAFETY INSTRUCTIONS

WARNING

FOR YOUR PROTECTION, PLEASE READ THE FOLLOWING:

KEEP THESE INSTRUCTIONS

HEED ALL WARNINGS

FOLLOW ALL INSTRUCTIONS

CLEAN ONLY WITH A DAMP CLOTH

DO NOT BLOCK ANY OF THE VENTILATION OPENINGS, INSTALL IN
ACCORDANCE WITH THE MANUFACTURERS INSTRUCTIONS.

DO NOT INSTALL NEAR ANY HEAT SOURCES SUCH AS RADIATORS, HEAT
REGISTERS, STOVES; OR OTHER APPARATUS (INCLUDING AMPLIFIERS)
THAT PRODUCE HEAT.

ONLY USE ATTACHMENTS/ACCESSORIES SPECIFIED BY THE MANUFAC-
TURER.

UNPLUG THIS APPARATUS DURING LIGHTNING STORMS OR WHEN
UNUSED FOR LONG PERIODS OF TIME

WATER AND  MOISTURE: Appliance should not be used near water (e.g. near a bathtub,
washbowl, kitchen sink, laundry tub, in a wet basement, or near a swimming pool, etc). Care
should be taken so that objects do not fall and liquids are not spilled into the enclosure
through openings.

POWER SOURCES: The appliance should be connected to a power supply only of the
type described in the operating instructions or as marked on the appliance.

GROUNDING OR POLARIZATION: Precautions should be taken so that the grounding
or polarization means of an appliance is not defeated.

POWER CORD PROTECTION: Power supply cords should be routed so that they are
not likely to be walked on or pinched by items placed upon or against them, paying particular
attention to cords at plugs, convenience receptacles, and the point where they exit from the
appliance.

SERVICING: To reduce the risk of fire or electric shock, the user should not attempt to
service the appliance beyond that described in the operating instructions. All other servicing
should be referred to qualified service personnel.

FOR UNITS EQUIPPED WITH EXTERNALLY ACCESSIBLE FUSE RECEPTA-
CLE:

Replace fuse with same type and rating only.

MULTIPLE VOLTAGE  INPUT: This equipment may require the use of a different line
cord, attachment plug, or both, depending on the available power source at installation.
Connect this equipment only to the power source indicated on the equipment rear panel.To
reduce the risk of fire or electric shock, refer servicing to qualified service personnel or
equivalent.

SAFETY INSTRUCTIONS 

NOTICE FOR CUSTOMERS IF YOUR UNIT IS EQUIPPED WITH A
POWER CORD.

WARNING: THIS APPLIANCE MUST BE EARTHED.

The cores in the mains lead are coloured in accordance with the following code:

GREEN and YELLOW - Earth        BLUE - Neutral        BROWN - Live

As colours of the cores in the mains lead of this appliance may not correspond with
the coloured markings identifying the terminals in your plug, proceed as follows:

• The core which is coloured green and yellow must be connected to the termi-

nal in the plug marked with the letter E, or with the earth symbol, or coloured
green, or green and yellow.

• The core which is coloured blue must be connected to the terminal marked N

or coloured black.

• The core which is coloured brown must be connected to the terminal marked

L or coloured red.

This equipment may require the use of a different line cord, attachment plug, or both,
depending on the available power source at installation. If the attachment plug needs
to be changed, refer servicing to qualified service personnel who should refer to the
table below. The green/yellow wire shall be connected directly to the unit's chassis.

WARNING: If the ground is defeated, certain fault conditions in the unit or in the
system to which it is connected can result in full line voltage between chassis and
earth ground. Severe injury or death can then result if the chassis and earth ground are
touched simultaneously.

U.K. MAINS PLUG WARNING

A moulded mains plug that has been cut off from the cord is unsafe. Discard the mains
plug at a suitable disposal facility. NEVER UNDER ANY CIRCUMSTANCES
SHOULD YOU INSERT A DAMAGED OR CUT MAINS PLUG INTO A 13
AMP POWER SOCKET. 
Do not use the mains plug without the fuse cover in place.
Replacement fuse covers can be obtained from your local retailer. Replacement fuses
are 13 amps and MUST be ASTA approved to BS1362.

The symbols shown above are internationally accepted symbols that warn of potential
hazards with electrical products.The lightning flash with arrowpoint in an equilateral
triangle means that there are dangerous voltages present within the unit.The exclama-
tion point in an equilateral triangle indicates that it is necessary for the user to refer
to the owner’s manual.

These symbols warn that there are no user serviceable parts inside the unit. Do not
open the unit. Do not attempt to service the unit yourself. Refer all servicing to quali-
fied personnel. Opening the chassis for any reason will void the manufacturer’s warran-
ty. Do not get the unit wet. If liquid is spilled on the unit, shut it off immediately and
take it to a dealer for service. Disconnect the unit during storms to prevent damage.

LITHIUM BATTERY WARNING

CAUTION!
This product may contain a lithium battery.There is danger of explosion if the battery is
incorrectly replaced. Replace only with an Eveready CR 2032 or equivalent. Make sure
the battery is installed with the correct polarity. Discard used batteries according to
manufacturer’s instructions.
ADVARSEL!
Lithiumbatteri - Eksplosjonsfare.Ved utskifting benyttes kun batteri som anbefalt av
apparatfabrikanten. Brukt batteri returneres apparatleverandøren.
ADVARSEL!
Lithiumbatteri - Eksplosionsfare ved fejlagtig håndtering. Udskiftning må kun ske med
batteri av samme fabrikat og type. Levér det brugte batteri tilbage til leverandøren.
VAROITUS!
Paristo voi räjähtää, jos se on virheellisesti asennettu.Vaihda paristo ainoastaan laite-
valmistajan suosittelemaan tyyppin. Hävitä käytetty paristo valmistajan ohjeiden
mukaisesti.
VARNING!
Explosionsfara vid felaktigt batteribyte. Använd samma batterityp eller en ekvivalent typ
som rekommenderas av apparattillverkaren. Kassera använt batteri enligt fabrikantens
instruktion.

ELECTROMAGNETIC COMPATIBILITY 

This unit conforms to the Product Specifications noted on the Declaration of
Conformity
. Operation is subject to the following two conditions:

• this device may not cause harmful interference, and 
• this device must accept any interference received, including interference that

may cause undesired operation. Operation of this unit within significant elec-
tromagnetic fields should be avoided.

• use only shielded interconnecting cables.

I

Summary of Contents for Mirage JT100

Page 1: ...User s Guide please visit Johnson Amplification on the World Wide Web at http www johnson amp com ...

Page 2: ...n If the attachment plug needs to be changed refer servicing to qualified service personnel who should refer to the table below The green yellow wire shall be connected directly to the unit s chassis WARNING If the ground is defeated certain fault conditions in the unit or in the system to which it is connected can result in full line voltage between chassis and earth ground Severe injury or death...

Page 3: ...1990 EN 55020 1991 Supplementary Information The product herewith complies with the requirements of the Low Voltage Directive 72 23 EEC and the EMC Directive 89 336 EEC as amended by Directive 93 68 EEC Johnson Amplification Vice President of Engineering 8760 S Sandy Parkway Sandy Utah 84070 USA Tel 801 566 8800 Fax 801 566 7005 Effective May 19 1999 European Contact Your local Johnson Amplificati...

Page 4: ...and labor will be covered up to a period of one year A Return Authorization number may be obtained from Johnson Amplification by telephone The company shall not be liable for any consequential damage as a result of the products use in any circuit or assembly 4 Proof of purchase is considered to be the burden of the consumer 5 Johnson Amplification reserves the right to make changes in design or ma...

Page 5: ...age was carefully assembled and packaged at the factory Before you proceed any further make sure the following items are included 1 User s Guide 1 Johnson Mirage JT50 or JT100 Amplifier 1 Johnson Amplification Warranty Card 1 Detachable Power Cord Please take a moment to fill out the warranty registration card and be sure to save all packing materials The warranty is your safeguard in the unlikely...

Page 6: ...er switch to the on position Gradually increase the master volume control to achieve the desired level Select Preset Use the Bank Select knob and the Preset 1 2 and 3 buttons to audition the different presets Once you have found presets that suit your taste you can alter the sounds to meet your specific needs Each of the effects will have specific knobs which will vary the values of their associat...

Page 7: ...he selected Modulation effect sweeps back and forth When the Pitch Shift effect is selected this knob will adjust the interval of the shifted pitch On the JT50 this knob also functions as a Level control for the Modulation Effects when used in conjunction with the Tap It Shift button Note The JT100 includes a Level knob which controls the selected Effects level See page 9 for information on adjust...

Page 8: ...cted Bank Each Preset can have different stored settings for Amp Type Gain EQ Level and Effects The Preset button will light to indicate which Preset is currently active If none of the Preset buttons are lit the active Preset does not reside in the selected Bank The Rear Panel 1 Power Switch Engages or disengages power to the Mirage JT50 JT100 2 Power Receptacle Connect the detachable power cord t...

Page 9: ...9 for more information on accessing the Level function on the JT50 The Delay section includes the Level Time and Feedback knobs and a Tap It Shift button The Level knob controls the output level of the delay The Feedback knob controls the number of delay repeats The Tap It Shift button sets the delay time by tapping in the tempo This is great for synchronizing your delay time with the beat of the ...

Page 10: ...ing to a recording console or a house PA system This type of a set up allows you to deliver your sound to the mixer without the use or ambient noise of a microphone The direct out is a stereo signal at a single 1 4 TRS jack To access the stereo direct out signal you need to use a stereo Y cord with a TRS male 1 4 plug Connect the male TRS plug to the headphone jack on the JT50 JT100 Then connect e...

Page 11: ... to start with a blank Preset Selecting a Preset The JT50 JT100 come with 21 different Presets from the factory To select a preset simply rotate the Bank Select knob and press one of the 1 3 Preset buttons located on the far right side of the control panel Once you have selected a Preset as your starting point you can choose an Amp Type set the Gain EQ and Level of the amp add your choice of Modul...

Page 12: ...ng delay time takes the delayed signal in and out of tune with the original signal This tends to make the guitar sound thicker and sweeter Speed The Speed knob adjusts the rate or how fast the Chorus modulates Depth The Depth knob adjusts the amount of intensity of the Chorus effect Level The Level adjusts the volume of the Chorus effect Flanger A Flanger is an effect that splits the incoming sign...

Page 13: ...is the strength or volume level at which the gate will open or close When your signal exceeds the threshold the gate will open allowing sound to be heard When your signal falls below the threshold the gate closes allowing nothing to come through The ideal setting for the threshold is to have it open as soon as you strike a string and close when you stop playing Adjusting the Gate Threshold 1 Press...

Page 14: ...r Values below 5 on the Level Type knob will select the Hall Reverb and values above 5 will select the Spring Reverb To exit the Reverb Type selection press the Tap It Shift button Storing Copying a Preset After you have edited a preset you must save your new sound in order to recall it later Otherwise the JT50 JT100 will erase the edits that you had made and revert back to the original sound of t...

Page 15: ...tor cable Effect Foot Switches The 3 Effect foot switches located on the top row of switches correspond to the 3 effect types available on the JT50 JT100 Mod Pitch Delay and Reverb These switches turn these effects on and off on the fly Each switch has an LED directly above it to indicate the status of the effect Preset Foot Switches The 3 Preset foot switches located on the bottom row will access...

Page 16: ...calibrate the J8 s expression pedal do the following 1 Begin with the power off 2 Press and hold the Preset 1 button while turning the power on 3 When appears in the display of the J8 release Preset 1 button and press the Tap It Shift button 4 The display on the J8 will read Pb for pedal back Rock the expression pedal back toe up and press any button on the J8 5 The display on the J8 will now read...

Page 17: ...cessor may need to be adjusted to prevent clipping Stereo Return The effect return is an input to the power amp of the JT50 JT100 This would be connected to the output of an external effect device Note The Mirage JT50 and JT100 effect loop is designed for use of rack mount type effects only Use of effect pedals in the Loop is not recommended as they are not generally designed to handle the line le...

Page 18: ... k Ohm Loop Return 1 4 Stereo TRS Loop Return Impedance 470 k Ohm Maximum Return Level 18 dBu Outputs Loop Send 1 4 Stereo TRS Loop Send Impedance 680 Ohm Maximum Send Level 18 dBu Headphone 1 4 Stereo TRS Headphone Impedance 10 Ohm minimum Controller Connections J8 Controller 5 pin DIN JT3 Switch 1 4 TRS Power Amp JT50 Power Amp Output Mono 50 Watts RMS into 8 ohms JT100 Power Amp Output Stereo 1...

Page 19: ...15 Johnson Mirage User s Guide Section Four Appendix ...

Page 20: ...USA Telephone 801 568 7642 FAX 801 568 7638 Johnson Amplification and Mirage are trademarks of the Harman Music Group Incorporated Copyright 1999 the Harman Music Group Incorporated Printed in USA 5 99 Manufactured in the USA Mirage JT50 JT100 Manual 18 6304 A Please Visit Johnson Amplification on the World Wide Web at http www johnson amp com ...

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