Crate VC-120H manual

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A good user manual

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First and foremost, an user manual of Crate VC-120H should contain:
- informations concerning technical data of Crate VC-120H
- name of the manufacturer and a year of construction of the Crate VC-120H item
- rules of operation, control and maintenance of the Crate VC-120H item
- safety signs and mark certificates which confirm compatibility with appropriate standards

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Usually it results from the lack of time and certainty about functionalities of purchased items. Unfortunately, networking and start-up of Crate VC-120H alone are not enough. An instruction contains a number of clues concerning respective functionalities, safety rules, maintenance methods (what means should be used), eventual defects of Crate VC-120H, and methods of problem resolution. Eventually, when one still can't find the answer to his problems, he will be directed to the Crate service. Lately animated manuals and instructional videos are quite popular among customers. These kinds of user manuals are effective; they assure that a customer will familiarize himself with the whole material, and won't skip complicated, technical information of Crate VC-120H.

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Table of contents for the manual

  • Page 1

    VC-120H Vintage Club Amplifier OWNER’S MANUAL[...]

  • Page 2

    2 CAUTION RISK OF ELECTRIC SHOCK DO NOT OPEN CAUTION: TO REDUCE THE RISK OF ELECTRIC SHOCK, DO NOT REMOVE COVER. NO USER-SERVICEABLE PARTS INSIDE. REFER SERVICING TO QUALIFIED SERVICE PERSONNEL. A TTENTION RISQUE D'ELECTROCUTION NE PAS OUVRIR ATTENTION: POUR REDUIRE D'ELECTROCUTION NE PAS ENLEVER LE COUVERCLE. AUCUNE PIECE INTERNE N'[...]

  • Page 3

    T ABLE OF CONTENTS: Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3 The Front Panel Controls and Their Use . . . . . . . . . . .4 The Rear Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5 Some Suggested Settings . . . . . . . . . . . . . . . . . . . . .6 System Block Diagram . . . . . . . . . . . . . [...]

  • Page 4

    4 The Front Panel Controls and Their Use: 1. POWER SWITCH: T oggle this switch to the ON position to turn on the amplifier . NOTE: Always turn the power switch ON FIRST , OFF LAST . Use the Standby switch (toggled to the Standby position) when first turning the amp on as well as during breaks. 2. ST ANDBY SWITCH: T oggle this switch to the ON posit[...]

  • Page 5

    5 IMPEDANCE SELECTOR T .P . ADJUST AC LINE IN BIAS 100 / 120 VAC T5A SLO BLO 220 / 240 VAC T2.5A SLO BLO TO REPLACE THE RISK OF FIRE, REPLACE FUSE WITH SAME TYPE AND RATING. UTILISER UN FUSIBLE DE RECHANGE DE MEME TYPE. 16 8 RISQUE DE CHOC ELECTRIQUE. NE PAS OUVRIR. TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK, DO NOT EXPOSE THIS APPLIANCE TO RAIN [...]

  • Page 6

    6 Some Suggested Settings: VC-120H Amplifier Good ’n Crunchy: Nice ’n Clean: Bright ’n Crunchy: Jazz T one: V iola: Strong Blues: Blitzkrieg: It Goes to “12”: *Set Reverb to taste * * * *[...]

  • Page 7

    7 System Block Diagram: HI INPUT STAGE TRBL MID BASS GAIN GAIN CONTROL BRIGHT LOW RTRN SEND GAIN STAGE GAIN STAGE GAIN STAGE GAIN STAGE TONE SHAPING MSTR VOL. MID TRBL CH. A CH. B CH. A CH. B BASS MSTR VOL. EFFECTS LEVEL EFFECTS DRIVER EFFECTS RETURN MID BOOST MID BOOST LOW BOOST REVERB SEND REVERB RETURN REVERB LEVELS PRESENCE DRIVER OUTPUT STAGE [...]

  • Page 8

    Output Power Rating 120W RMS @ 5% THD, 16 ohm load, 120 V AC Input Impedance 1 M ohm Maximum Signal Accepted 0dB: 1.5V peak to peak; -6dB: 2.8V peak to peak Gain Channel A: 68dB Channel B: 100dB T one Control Range Channel A: T reble: 16dB @ 5kHz Mid: 8dB @ 700Hz Bass: 10dB @ 50Hz Mid Boost: 12dB @ 800Hz Low Boost: 13dB @ 100Hz Channel B: T reble: [...]