7
Front Panel
①
Power Switch
Used to switch on/off the amplifier.
Note: Unplug the power cord if you're not going
to use the product for an extended period of
time.
③.
Headphone Jack
（
PHONES
）
Enjoy the music with your headphone if you
prefer.
Power Indicator/Mute Indicator
Used to indicate the working state. The indicator
will be on when it is working normally. The
indicator will flicker for 30 seconds when it
delays to work. The indicator will keep flickering
when it is at mute state.
Volume Knob
Used to control volume
If the TR/UL LED is Yellow it is working at
TRIODE mode.
.
②.
Power indicator
Turn on the amplifier the power indicator will be
on.
④.
⑤.
⑥
.
TR
/
UL
Indicator
：
Or it is Utralinear working model with a Red LED.
Once turned on it will keep working at the same
mode before switching off.
Input Selector Indicator
You can hear sound from AUX when AUX
indicator is on.
You can hear sound from CD when CD indicator
is on.
You can hear sound from PHONO when PHONO
indicator is on.
USB Input Indicator: Once USB input has been
selected the indicator will light.
Cayin CS-55A can memorize last operation of
the unit once turned off.
⑧
.
IR Remote Sensor
Used to receive the code of remote control.
Input Selector Knob
Used
to
select
four
kinds
of
audio
sources
.
The
input
selection
indicator
will
be
on
according
to
the
input
audio
sources
.
This
function
can
be
operated
on
the
remote
control
.
⑦.
⑨.
6
8
5
9
3
1
4
2
7
O N
O F F
V O L U M E
M I N
M A X
S E L E C T O R
P O W E R
T R
/
U L
VA C U U M T U B E I N T E G R AT E D A M P L I F I E R C S -
5 5
A
P H O N E S
P H O N O
C D
A U X
U S B
Diagram 1
：
CS-55A
FRONT