User manual FENDER SERIES 3000

[. . . ] Channel Two is like owning a second, modern hot-rodded amp with more soaring gain than previously found in a Fender tube amp. The CLASSIC Fender tube reverb sound is there too and is switch assignable to Channel One, Channel Two, or both. Finally, a master PRESENCE control allows you to "dial-in" just the right amount of highend sparkle. Special effects will interface to the Effects Loop easily and with no guesswork on levels. [. . . ] VOLUME -- Adjusts the overall volume of the Channel One Vintage Drive Sound. PULL GAIN SELECT -- When this pull switch on the Vintage Drive Sound VOLUME control (item J) is in the "in" position, the Channel One Clean Sound is selected and the Clean Sound VOLUME control (item C) is active; when in the "out" position, the Vintage Drive Sound is selected, and the Channel One Vintage Drive Sound GAIN (item E) and VOLUME (item J) controls are active. Lower settings provide gradual compression, while higher settings provide more sustain. . . TREBLE -- Adjusts the amount of boost or cut in the high frequency range of Channel Two. BASS -- Adjusts the amount of boost or cut in the low frequency range of Channel Two. MID -- Adjusts the amount of boost or cut in the middle frequency range of Channel Two. CHANNEL TWO INDICATOR -- When this red LED is lit, Channel Two is selected, and the Channel Two GAIN (item L) and VOLUME (item Q) controls are active. As this control is rotated clockwise from the "1" position, the volume comes up slowly at first for additional control at lower listening levels; but near mid volume settings, the volume comes up faster for perfomance levels. PULL CHANNEL SELECT -- When this pull switch on the Channel Two VOLUME control (item Q) is in the "in" position, Channel One is selected. MIX -- Adjusts the amount of audible "wet" (processed) signal when the variable level effects loop (located on the back panel) is used. When the MIX control is in the full counter-clockwise position ("1"), the "wet" signal will not be audible. Plugging into this jack makes the MIX control on the front panel active. PRE-AMP OUT JACK -- The PRE-AMP OUT JACK, in conjunction with the POWER AMP IN JACK (item I), provides a post-reverb patch point at the power amplifier input. This jack can be used to provide an unbalanced, line-level signal (1. 3dBV) for recording and sound reinforcement consoles, and for driving external power amplifiers, or another TWIN used as a slave amp. To use another TWIN as a slave amp, simply run a guiter cord from the master TWIN'S PREAMP OUT JACK to the slave TWIN'S POWER AMP IN JACK . See item P, BALANCED LINE OUT, for driving solid-state slave amps. ) I. POWER AMP IN JACK -- This jack connects directly to the input of the power amplifier. OUTPUT BIAS ADJUST -- This trim adjustment is used in conjunction with the OUTPUT BALANCE ADJUST (item L) and the BIAS TEST POINTS (item K) to set the output tube bias. BIAS TEST POINTS -- Used to measure output tube bias and balance with a digital voltmeter. OUTPUT BALANCE ADJUST -- Used in conjunction with the BIAS TEST POINTS (item K) to set the balance between the push/pull tube sections of the power amp. Turn on the amplifier and let it warm up for at least two minutes with the STANDBY SWITCH (item C) in the ON position and the OUTPUT SWITCH (item D) in the OUTPUT HIGH position. With a digital voltmeter set to its most sensitive DC voltage scale, measure the voltage between the two BIAS TEST POINTS (item K) labeled "BIAS" and adjust the OUTPUT BIAS ADJUST control (item J) for a reading of . 08 VDC (80 mVDC). [. . . ] EFFECTS SELECT SWITCH -- This three position switch assigns the EFFECTS RETURN JACK (item G) to Channel One, Channel Two, or to both channels. For example, if the EFFECTS SEND and EFFECTS RETURN jacks are being used to patch in an effect, and the EFFECTS SELECT SWITCH is set to the "CH. 1" position, the effect will be heard ONLY when Channel One is selected. BALANCED LINE OUT -- This XLR jack provides a transformer coupled, balanced, floating ground output which can be used to drive slave power amps, or with proper equalization, used as a send to a mixing console for recording or sound reinforcement. [. . . ]