Peavey TKO 115 Supplementary Manual page 4

PREAMP OUT/POWER AMP IN (13)
These jacks are provided for in-line patching of effects devices. To patch an effects unit, connect the Preamp
Output to the Input of the device. Next, connect the output of the device to the Power Amp Input (high-quality
shielded cables must be used for these connections). The Preamp Output can also be used to route the amplified
signal to a mixing console, tape recorder, etc. Connect the Preamp Output, using a shielded cable, to an input of
the tape recorder, mixer, etc. This patch does not affect the operation of the amplifier.
NOTE: The preamp output level is approximately 1 volt RMS and is of relatively low impedance (600 ohms).
Any effects device used in this effects loop must be capable of receiving 1 volt input and providing 1 volt output
in order to properly drive the power amp. The Power Amp Input has an internal switch which disconnects the
internal preamp.
HEADPHONE JACK (14)
This stereo jack allows signal to flow to both sides of any stereo headset.
POWER LED (15)
Illuminates when AC power is being supplied to the amp.
POWER SWITCH (16)
Depress to "On" position to turn on.
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LINE (MAINS) CORD RETAINERS (17)
Allow storage of mains cable for travel.
GROUND SWITCH (18)
Three position rocker-type switch which, in most applications, should be operated in its center or zero position.
There may be some situations when audible hum and/or noise will come from the loudspeaker. If this situation
arises, position the ground switch to either positive or negative (+ or -) or until the noise is minimized.
NOTE: Should the noise problem continue, consult your Authorized Peavey Dealer, the Peavey Factory, or a
qualified service technician. THE GROUND SWITCH IS NOT FUNCTIONAL ON 220/240 VOLT MODELS.
LINE CORD (120 V PRODUCTS ONLY) (19)
For your safety, we have incorporated a three-wire line (mains) cable with proper grounding facilities. It is not
advisable to remove the ground pin under any circumstances. If it is necessary to use the equipment without
proper grounding facilities, suitable grounding adaptors should be used. Less noise and greatly reduced shock
hazard exists when the unit is operated with the proper grounded receptacles.
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