Ampeg_SVT-CL_Users_Guide电路图.pdf

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1、Owners Guide for the SVT-CL Bass Amplifier Made in the U.S.A. by INPUTSULTRA HI/LO LO 0dB GAIN -15dB HI BASSMIDRANGEFREQUENCYTREBLEMASTER STANDBYPOWER STANDBY/ POWER/ FAULT 1 2 3 4 5 RadioFans.CN 收音机爱 好者资料库 SVT-CL 2 Table of Contents Important Safeguards and Precautions . . . . . . . . . . . . . .2

2、Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3 Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3 System Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . .3 The Front Panel Controls and Their Use . . . . . . . . . .

3、 . . .4 The Rear Panel Controls and Their Use . . . . . . . . . . . . .5 Some Suggested Settings . . . . . . . . . . . . . . . . . . . . . . . .6 Changing the Tubes . . . . . . . . . . . . . . . . . . . . . . . . . . . .7 Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . .back cover Tech

4、nical Specifications . . . . . . . . . . . . . . . . . .back cover Important Safeguards and Precautions All Ampeg products are designed for continuous safe operation, as long as common sense is used and steps are taken to help avoid certain prob- lems. Abiding by the following rules can help prevent

5、 damage to your amplifier, yourself and others. The amp is equipped with a three-prong AC power cord. To reduce the risk of electrical shock, NEVER remove or otherwise attempt to defeat the ground pin of the power cord. Connect the amp ONLY to a properly grounded AC outlet of the proper voltage for

6、your amp. If no grounded outlet is available, use only an approved method of adapting to a two-prong AC source. Avoid sudden temperature extremes, rain and moisture. Also, avoid sudden and intense impact. (If the unit has been subjected to any of the preceding abuses, have it looked at by an authori

7、zed service center.) NEVER set the amp on a support that might give out under its weight. Always keep the total impedance at or above the rated load. Unplug the amp before cleaning it. NEVER spray liquid cleaners onto the unit. Wipe the unit with a slightly dampened, lint-free cloth to remove dirt a

8、nd film. Dont use the amp if it has sustained damage to the chassis, controls, or power cord. Refer the unit to an authorized service center for inspec- tion. Amplifiers capable of producing high volume levels are also capable of inflicting permanent hearing loss or damage, if the exposure to such l

9、evels is prolonged. Such damage is progressive and irreversible! Caution is advised and ear protection recommended when playing at extremely loud levels. The chart below shows the U.S. Government Occupational Safety and Health Administration (OSHA) regulations which were in effect at the time of thi

10、s publication for permissible noise exposure, per 29CRF1910, Table G-16. According to OSHA, any exposure in excess of those listed above could result in some hearing loss. SOUND LEVEL dBADURATION PER DAY SLOW RESPONSEIN HOURS 908 926 954 973 1002 SOUND LEVEL dBADURATION PER DAY SLOW RESPONSEIN HOURS

11、 1021-1/2 1051 1101/2 1151/4 or less 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. ATTENTION RISQUE DELECTROCUTION NE PAS OUVRIR ATTENTION: POUR REDUIRE

12、DELECTROCUTION NE PAS ENLEVER LE COUVERCLE. AUCUNE PIECE INTERNE NEST REPRABLE PAR LUTILISATEUR. POUR TOUTE REPARATION, SADRESSER A UN TECHNICIEN QUALIFIE. VORSICHT ELEKTRISCHE SCHLAGGEFAHR NICHT OFFENEN VORSICHT: ZUR MINIMIERUNG ELEKTRISCHER SCHLAGGEFAHR NICHT DEN DECKEL ABENHMEN. INTERNE TEILE KON

13、NEN NICHT VOM BENUTZER GEWARTET WERDEN. DIE WARTUNG IS QUALIFIZIERTEM WARTUNGSPERSONAL ZU UBERLASSEN. THIS EQUIPMENT HAS BEEN DESIGNED AND ENGINEERED TO PROVIDE SAFE AND RELIABLE OPERATION. IN ORDER TO PROLONG THE LIFE OF THE UNIT AND PREVENT ACCIDENTAL DAMAGES OR INJURY, PLEASE FOLLOW THESE PRECAUT

14、IONARY GUIDELINES: CAUTION: TO REDUCE THE RISK OF ELECTRIC SHOCK, DO NOT OPEN CHASSIS; DO NOT DEFEAT OR REMOVE THE GROUND PIN OF THE POWER CORD; CONNECT ONLY TO A PROPERLY GROUNDED AC POWER OUTLET. WARNING: TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK, DO NOT EXPOSE THIS EQUIPMENT TO RAIN OR MOISTUR

15、E. CAUTION: NO USER-SERVICEABLE PARTS INSIDE. REFER SERVICING TO QUALIFIED SERVICE PERSONNEL. CAUTION: OUR AMPLIFIERS ARE CAPABLE OF PRODUCING HIGH SOUND PRESSURE LEVELS. CONTINUED EXPOSURE TO HIGH SOUND PRESSURE LEVELS CAN CAUSE PERMANENT HEARING IMPAIRMENT OR LOSS. USER CAUTION IS ADVISED AND EAR

16、PROTECTION IS REC- OMMENDED IF UNIT IS OPERATED AT HIGH VOLUME. IT IS NECESSARY FOR THE USER TO REFER TO THE INSTRUCTION MANUAL REFERREZ-VOUS AU MANUAL DUTILISATION UNBEDINGT IN DER BEDIENUNGSANLEITUNG NACHSCHLAGEN EXPLANATION OF GRAPHICAL SYMBOLS: DANGEROUS VOLTAGE DANGER HAUTE TENSION GEFAHLICHE S

17、PANNUNG = RadioFans.CN 收音机爱 好者资料库 SVT-CL 3 An Introduction to your new Ampeg SVT-CL Bass Amplifier The harmonically rich sound and legendary performance of the classic AMPEG SVT are redefined in the SVT-CL. This dynamically powerful bass amp delivers a thunderous 300 watts of unsurpassed quality, re

18、liability and tonal flexibility, offering the classic vibrance of tubes as well as contemporary features. All of the features and controls of your SVT-CL are covered in detail within the pages of this owners guide. We recommend going over them before you use the amplifier. Features In the world of h

19、igh performance bass amps, SVT amplifiers stand alone. In true Ampeg tradition, the SVT-CL offers you more power, performance and flexibility than any other amplifier in its class. Listed below are some of the outstanding features of your new amp: features which set it apart from the competition! Ad

20、ditional information on these features can be found on the pages indicated. -15dB INPUT: This feature is perfect for “active” basses (page 4). ULTRA LO AND ULTRA HI SWITCHES: These enable you to tailor your sound in many different ways at the touch of a button (page 4). 5-POSITION FREQUENCY SELECTOR

21、: Take your pick from the five center frequency points to get just the right midrange voice (page 4). BIAS ADJUSTMENT CONTROLS: These controls allow you to adjust the tube bias for proper operation (pages 5 if so, find and replace bad tube(s). None onPossibly no high voltage or badHave unit checked

22、by a service technician. Bias Control or bad tube(s) Both on all the timePossible bad Bias Control or bad tubesHave unit checked by a service technician. If the tubes are bad enough to cause damage to the unit, the Fault Indicator (#11, Front Panel) will signal and the unit will shut down. P/N 47-50

23、9-22 01/97 Ampeg reserves the right to change specifications without notice. Ampeg is proudly Made in America. 1997 SLM Electronics, 1400 Ferguson Avenue, St. Louis, MO 63133 U.S.A. SVT-CL Technical Specifications OUTPUT POWER RATING300 watts RMS minimum continuous 3% THD into 2 or 4, 0.4VRMS input

24、TOTAL SYSTEM GAIN67dB 1kHz with levels up and tones flat, -3dB 40Hz and 15kHz TONE CONTROL RANGE BASS:12dB 40Hz MIDRANGE:+10dB, -20dB 220, 450, 800, 1.6k or 3kHz TREBLE:+15dB, -20dB 4kHz ULTRA LOW:+2dB 40Hz, -10dB 500Hz ULTRA HIGH:+9dB 8kHz SIGNAL TO NOISE RATIO80dB typical TUBE COMPLEMENT12AX7 (3),

25、 12AU7 (2), 6550 (6) POWER REQUIREMENTS10A (Normal Blow), 115VAC, 60Hz, 460VA SIZE (W x H x D) AND WEIGHT24” W x 11.5” H x 13” D, 80 lbs. Troubleshooting In the event that your SVT-CL should stop work- ing properly, or just stop working, take a few min- utes to troubleshoot it before you call for se

26、rvice. You can save yourself a lot of time and sometimes money doing it yourself, and often the problem is something quite simple. If you think the problem may be worn out tubes, see page 7 for symptoms of tube failure. DISCONNECT all external devices except bass and speaker cabinet. No sound, bad s

27、ound? LEDs on? Power LED green? Green Bias LEDs on? Instrument volume up? Sound OK? Go for it! Check AC outlet, power cord, power switch, fuses. Retry Check Standby switch (20 second delay when first turned on). Retry Rebias or see Page 7 for possible faults. Retry. Set controls. Retry. Bias LEDs fl

28、ashing red with signal? Possible power amp problem. Check speaker cables. Retry. If these steps fail to solve problem, see below. If the problem isnt covered above, or if the steps led you here, then contact your Ampeg dealer for service information. Also, you should refer your amp for servicing if it gets dropped, has liquid spilled into it, or sustains damage to its power cord.