Telonics TCA-500C Combo Amp
22
PB-009289 Rev E
TCA-500C
C
OMBO
A
MP
C
ONTROL
F
UNCTIONS
&
J
ACKS
:
R
EAR
P
ANEL
Power Amp
ON/OFF
Turns the power amplifier On and Off. A time delay is built into the audio
circuits to minimize “pop” when turning On or Off. Note: The preamp is still
operational when the PA is off.
The Power Amp ON switches the Power Amp On/Off. It does not affect the
XLR Direct Out or the Headphones. When the Power Amp ON switch is Off
the cooling fans are disabled, after a few seconds, to minimize noise for use in a
studio.
This is an important professional feature for studio and live venue work using
the Direct Out from the Combo Amp. To use it, first establish your working
stage/studio volume through the combo speaker. Then turn the Power Amp OFF
and adjust your output level using the Direct Out level control on the front panel
to suit your taste (This will allow you to hear the house/studio system without
the local sound of your amp).
Don’t forget to turn the Power Amp back ON
after this adjustmen
t, as your cooling has been disabled while the PA is OFF.
Hint: If you ever find yourself at a live gig, trying to get sound from your
combo, but nothing is coming out, check this switch – someone may have
turned your power amplifier off! Your Temperature LEDs will be blinking in
groups of 3 blinks to warn you.
AC (MAINS) Power
Input
110-120VAC input
*
. Standard C13 plug on an 18 AWG cord is recommended.
The power input is fused with an 8 amp 250VAC 5x20mm ceramic Slow Blow
fuse.
*
NOTE: Standard versions are wired for domestic use only. Export units are available on special
order. Export AC Power Input range is 170-240 VAC, 50-60 Hz with an 8A 250VAC fuse.
CAUTION: Voltages outside this range could damage the unit and cause a shock hazard.
Fuse