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TCA-500 C
OMBO
F
P
RONT
ANEL
Green LED
The green LED will blink; On for a short time then Off, once a second while the
temperature is below the Low setting. This "wink" (short blink, once per second)
lets you know that the Thermal Management System is working. As the
temperature increases the green LED will come On solid while the temperature is
at or above the low setting.
The yellow LED will come On solid if the temperature is at or above the medium
Yellow LED
set point.
The red LED will come On solid if the temperature is at or above the high set
Red LED
point.
Turns the power amplifier On and Off. A time delay is built into the audio
PA On
circuits to minimize "pop" when turning On or Off. Note: The preamp is still
operational when the PA is off.
The PA ON switches the combo Power Amp On/Off. It does not affect the
XLR Direct Out or the Headphones. When the PA ON switch is Off the
cooling fans are disabled to minimise noise for use in a studio.
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!
AC On LED / AC
Main Power ON / OFF switch (rear) / AC ON LED (blue) – The AC
Switch
power switch is a small black "rocker" switch located above the AC power
cord IEC connection point/socket on the rear panel. The blue AC On LED
on the front panel indicates AC mains power is applied and the AC Mains
Power switch is On.
MUTE ON switch / LED (yellow) – The Mute ON switch mutes the
Mute
output to the Power Amplifier, to the XLR Direct Out and to the PRE
OUT; it does not affect the Headphone output, Effects Send and Pedal
TO outputs.
The Mute circuitry is designed to be super quiet when switched On and
Off. When the Mute is On the Yellow Mute LED is lit.
The Mute system in the TCA-500 is very handy for string replacement, practice
licks, tuning, and effects adjustment during live venue situations.
Telonics TCA-500 Combo Amp
PB-009289 Rev _ PRELIMINARY
A
C
F
MP
ONTROL
(
)
CONTINUED
, J
UNCTIONS
ACKS
, & I
:
NDICATORS
18
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