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manual abstract
For ordinary output guitar, connect to "HIGH.” For very big output guitars, connect to "LOW." BRIGHT SWITCH When this switch is set to ON, clearer sound can be obtained. Thus, the tone can be changed to hard or soft. VOLUME This knob controls volume. Turn clockwise (O) to increase, and counterclockwise (O), to decrease. TREBLE This knob controls high range response. Turn clockwise (O) to lift and counterclockwise (O), to cut. MIDDLE This knob controls middle range response. Turn clockwise (O) to lift and counterclockwise (O), to cut. REAR PANEL NAME PLATE FUSE HOLDER CHANNEL 2- BASS This knob controls low range response. Turn clockwise (O) to lift and counterclockwise (O), to cut. DISTORTION This knob controls distortion. Turn clockwise (O) for greater distortion, and-counterclockwise (O) for slight distortion. At OFF position, no distortion is produced. REVERB This knob controls reverberation sound. Turn clockwise (O) to increase, and counterclockwise (O) to decrease. VIBRATO SPEED This knob controls speed of vibrato. Turn clockwise (O) for faster speed and counterclockwise (O) for slower vibrato. VIBRATO DEPTH This knob controls depth of vibrato. Turn clockwise (Q) for deeper effect. CHORUS/OFF/VIBRATO CHANGEOVER SWITCH Changeover of chorus-normal-vibrato can be accomplished simply by touching this switch. POWER/POLARITY SWITCH - PILOT LAMP Set to on to run the amplifier. Pilot lamp lights. If noise or power-line hum is heard, move power switch up and down several times to select the switch position for reduced noise and hum. EXTERNAL SPEAKER JACK FOOTSWITCH JACK | LINE-OUT JACK MAIN IN REVERB CHORUS/VIBRATO DISTORTION FOOTSWITCH JACK Connect footswitch to respective jacks and you can remote-control Chorus/ Vibrato, Reverb, and Distortion to ON or OFF while in performance. MAIN-IN JACK By connecting line-out of another guitar amplifier, to JC-120, sound reinforcement is attained. LINE-OUT JACK JC-120 can be connected through this jack to line-in of another guitar amplifier, slave amplifier or PA mixer. Recording is also possible by connecting to a tape deck. EXTERNAL SPEAKER JACK External speaker system with 80 or over can be connected and sound can be produced together with the built-in speaker. This wields power when wide-dispersion, stereophonic sound is required. CONNECTING JC-120 FOOTSWITCH (FS-1) TAPE RECORDER FOOTSWITCH (FS-2) GUITAR ! CHANNEL 1 INPUT JACK GUITAR CHANNEL 2 INPUT JACK OPERATING JC-120 1 TO OBTAIN NORMAL SOUND: Set knobs and switches Middle-Bass) to proper positions while playing your guitar. as illustrated below and adjust volume and tone controls (Treble- >TO ADJUST CHORUS: Connect connection cord plug to input jack of Channel 2. After perfecting the setting for normal ■sound, set Chorus/Vibrato changeover switch to Chorus, to obtain chorus effect. i TO ADJUST VIBRATO: Connect connection cord plug to input jack of Channel 2. After perfecting the setting for normal f sound, set Chorus/Vibrato changeover switch to Vibrato, to obtain vibrato effect. Set Speed and Depth controls at proper positions while playing your guitar. i TO OBTAIN DISTORTION SOUND: Connect guitar plug to input jack of Channel 2. Starting from the setting for normal i sound, set Distortion control at proper position in ON region to obtain soft distortion. ' TO ADJUST REVERB CONTROL: Turn Reverb Control to proper position to obtain the reverberation effect as you like. CHORUS EFFECT With the chorus effect of JC series, sound-delay circuit is used to make a signal having a slightly different pitch from the direct sound, which is then mixed with the direct sound to produce a unison. By this unique chorus effect, sweet and soft color is added to the electric guitar tone. Further, with your JC-120, two speakers are driven by two independent main amplifiers, which helps you enjoy natural, _ unaffected chorus sound. À 26015762 '89-5-A3-07S CAUTION • If neon or fluorescent lamp is located close to amplifier or instrument, that may cause noise. Separate them each other. Also, selecting direction of guitar can reduce the noise. • If you put in or out the power plug with amplifier volume set at high level, speaker is heavily loaded, causing the fear of breaking it. Do it after turning volume to "0” without fail. • When connecting instrument and amplifier, connect cord plug to instrument first and then the other end to amplifier. For disconnection, reverse the order: from amplifier first and then from instrument. • Do not exert big shock upon amplifier. Avoid moving amplifier while it is in operation. • Avoid using JC-120 where there is much dust or under high humidity conditions, which may cause trouble. • If amplifier is soiled, clean with neutral cleanser. *Avoid using thinner or the like. • When replacing fuse, be sure to use that with the specified rating. SPECIFICATIONS Output...............1 20W (rms) Speaker ......... 30cm x 2 Channel......... 2 Inp...