Fender Super Twin Owner Manual - Page 7
Panel, Functions, Corrective, Check - schematic
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REAR PANEL FUNCTIONS SPEAKER JACK Connects internal speakers to amplifier. OUTPUT LINE/RECORDING JACK Permits direct connection to recorders, P.A. systems or amplifiers, with input impedances of 200 ohms or more. OUTPUT TUBES MATCHING This control makes it unnecessary to use matched power output tubes for optimum performance Best balance is obtained by setting the OUTPUT LEVEL to "1" and adjusting for minimum hum level. Ordinarily, no adjustment should be required unless the output tubes are changed. EQUALIZER PEDAL JACK Used to connect EQUALIZER (EQL) switch on foot pedal to amplifier for instant on/off control. Use shielded lead plug. VOLUME BOOST & DISTORTIOI PEDAL JACK Used to connect VOLUME BOOST switch (slide) and DISTORTION (DST) switch (both on foot pedal) to amplifier for instant on/off control. Use unshielded lead plug. HUM BALANCE After the "GROUND SWITCH" has been positioned to minimum hum, the hum balance may be used to further reduce hum. This control should not need adjustment unless tubes or other components are changed. A.C. ACCESSORY OUTLET (120 V AC, 60 Hz) (Load limit 250 Watts) This socket is provided as a convenience outlet for any A.C. accessory. FUSE 61/4 Amp 125 Volts CAUTION: Disconnect amplifier A.C. plug from outlet before changing fuse. Remove fuse by pressing in and unscrewing cap counter-clockwise. Replace only with Littlefuse No. 3136.25 or Bussman fuse No. MDL 6'/4. GROUND SWITCH Gives player control of polarity. Positions "A" and "B" ground to each side of the line respectively. The "OFF" position disconnects all but the third line chassis ground. Try each position to find minimum hum condition. CORRECTIVE CHECK LIST If your amp is set up but does not function, check the following items: Is the amp power supply cable plugged into the wall? Is there power at the wall outlet where the amp is plugged in? Is the speaker plugged into the amplifier speaker jack? Are the tone control knobs turned up above 4? Is the volume control on your instrument turned up? Is the fuse good? If, after checking all of the above, the system is still not performing correctly, consult your authorized Fender Service Dealer. CARE OF VINYL COVERING If the vinyl covering and handles require cleaning, use a mild soap and warm water solution, rinse with a damp cloth, and buff dry with a terry cloth. This will restore the original luster. REPLACEMENT PARTS If the amplifier should require new parts, they will be replaced under the term of the warranty stated in the back of this manual. Your authorized Fender Dealer will have parts in stock, or he can obtain them quickly for you. If a tube should need replacement and no Fender Dealer is available, an electronic store can usually supply the tube required, but not under the warranty. The schematic furnished with this manual will be helpful at that time. Fender Musical Instruments furnishes warranty service only through authorized Fender Dealers. 4
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