Telonics TCA-500C Combo Amp
20
PB-009289 Rev E
TCA-500C
C
OMBO
A
MP
C
ONTROL
F
UNCTIONS
,
J
ACKS
,
&
I
NDICATORS
:
F
RONT
P
ANEL
(
CONTINUED
)
Headphone Gain
Adjusts headphone output level. Turn down when not in use.
Headphone Jack
The headphones output is a high level stereo ¼” TRS Jack output, capable
of driving headphones impedances of 8 Ohm or higher.
WARNING – High headphone levels may damage your hearing
The Headphones Gain control allows the headphone output level to be
adjusted.
The Mute ON and Power Amp switches do not affect the headphones
output.
This unit puts out up to half a watt per channel into 8 ohm – more than enough for
any player at home. We recommend using quality headphones such as Sony
model MDR 7505.
Tuner Out
This is a buffered output so it will not load down the pickup or the rest of the
signal chain, nor will it allow noise from the tuner to get back into the system.
Output impedance is approximately 500 ohm. This output is buffered for feeding
to a guitar tuner.
The Mute ON switch does not affect this output; it is
always ON
.
Thermal
Management and
Power Amplifier
Off Status
The Thermal Management Status indicates the temperature status of the power
amplifier. The LEDs indicate a low (green), medium (yellow), or high (red)
temperature range. (For more details see the Thermal Management System
section)
These Three LED’s are also used to remind the user that the Power
Amplifier switch on the rear panel is in the OFF position when blinking in
groups of three (3) blinks, therefore no sound will be heard from the
speaker.
The LEDs will also indicate a fan speed out of specification condition as
described later, in the
Thermal Management System; Fan Speed out of Spec
Indication paragraph
.